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RIKEN Collaborative Section

  • Y.Kim(Prof.)
  • H.Imada(Assoc.Prof.)
Kyushu University Graduate School of Engineering cooperates with the National R & D Corporation RIKEN to improve the ability and insight of graduate students and to improve the education and research abilities of the researchers belonging to them, We have concluded an agreement and memorandum of understanding on September 1,2017 As of April 1, 2018, Visiting Professor Kim (RIKEN chief scientist) and Visiting Associate Professor Imada(RIKEN research scientist), who assume “Surface and Interface Science field”, belong to RIKEN Collaborative Section and teach it for graduate students of Department of Chemistry and Biochemistry. Molecule,Energy conversion,Scanning Tunneling Microscope,Luminescence,Phosphorescence,Photon absorption,Plasmon,Molecular assembly,Self-assembled monolayer,Unltrathin insulating film,Graphene,2 dimensional materials,Surface elementary processes

String Data Processing

  • M.Takeda(Prof.)
  • H.Bannai(Assoc.Prof.)
  • S.Inenaga(Assoc.Prof.)
  • Y.Nakashima(Asst.Prof.)
In computers, all information is represented as a sequence of characters or “strings.” With our signature phrase “Everything is String” our laboratory studies matching/compression/searching/learning/discovery on string data. Through discovery of novel mathematical characteristics of strings allowing increased data-processing speed and reduced memory usage, we aim to develop not just evolutionary but revolutionary technology. We believe it is most necessary to build timeless and universal fundamental theories not swayed by short-sighted or short-lived applications.

Mathematical Eng.

  • J.Takeuchi(Prof.)
  • Y.Jitsumatsu(Assoc.Prof.)
Our laboratory aims to find out mathematical structures of various problems in computer science and digital communication and to derive universal solutions based on the mathematical structures. Our research topics include basic theories such as learning theory, machine learning, information theory, information geometry, communication theory, network theory, nonlinear system theory and their applications. Specific applications are cyber-attack detection on the Internet, super resolution, pattern recognition, CDMA communication, analog/digital conversion, and error correcting codes. Through these researches, we develop human resources who are responsible for the fundamental technologies in advanced information society in future. Machine Learning,Minimum Description Length (MDL) Principle,Stochastic Complexity,Information Geometry,Information Theory,Error Correcting Codes,Compressed Sensing,Artificial Intelligence,Statistics,Data Science,Deep Learning,Sparse Coding,Magnetic Resonance Imaging (MRI),Super Resolution,Cyber Security,Random Number Generation,Chaotic Dynamical Systems,Analog Digital Conversion,Digital Wireless Communications,RADAR signal processing

Algorithm Theory

  • S.Kijima(Assoc.Prof.)
  • Y.Yamauchi(Assoc.Prof.)
Algorithm Theory Laboratory is widely interested in the principles of computing, particularly algorithm theory. For a bunch of problems originating from the real world or motivated by theoretical computer science, our research interest includes design of algorithms and mathematical analysis from the view point of correctness, efficiency, robustness, etc. Assoc. Prof. Kijima is mainly involved in the topics such as randomization and derandomization including Markov chain Monte Carlo (MCMC), approximation algorithms, discrete mathematics including graph theory, matroid system, submodular functions, etc. Assoc. Prof. Yamauchi is mainly involved in a variety of topics on distributed coordination, such as fault-tolerance of distributed systems, self-organization of autonomous mobile robots, and game theory in distributed environment. Randomized algorithms,Discrete mathematics,Mathematical programming,NP-complete,Stable marriage,Graph algorithms,Theory of online learning,Distributed system ,Robustness,Autonomous adaptability,Mobile robot system,Self-organization

IT & Multimedia Security

  • K.Sakurai(Prof.)
  • D.Vargas(Asst.Prof.)
  • W.Razouk(Asst.Prof.)
Nowadays, not only people but things are getting increasingly interconnected in what is called Internet of Things (IoT). In a world where almost everything is connected, if an attacker gets control of one of these networks it can be disastrous. Attacks can go as far as changing the election results of a country (USA’s 2016 election was strongly influenced by Russian cyberattacks). Moreover, in a recent report from Forbes, cybercrime is projected to reach 2 trillion dollars by 2019. To protect society, we research new technologies and paradigms for security related applications. Network Security,Security Camera,Security Robot,Adversarial Machine Learning,Computer Security,Cryptography

Cognitive Science

  • S.Mori(Prof.)
  • K.Shidoji(Prof.)
  • N.Hirose(Asst.Prof.)
The cognitive science laboratory explores functions of human mind for their engineering applications. Prof. Mori investigates auditory temporal resolution and categorical speech perception through behavioral experiments and functional brain imaging measurements and attempts to develop new hearing tests, using a variety of psychophysical techniques. Prof. Shidoji focuses on estimation of driver's state in driving simulator and real-road driving, its application to development of automated driving system and driver support system, and perception and cognition in virtual reality environment.

Data Mining

  • E.Suzuki(Prof.)
  • T.Matsukawa(Asst.Prof.)
In data mining, which aims at sophisticated discovery of potentially useful and understandable patterns from massive data, we tackle diverse issues from fundamental ones to applications with various bases including machine learning. Examples include data processing such as data squashing and data structure, pattern discovery such as various types of exceptions and rules, pattern interpretation such as information visualization and human factors, and other issues such as problem formalization. Moreover we conduct various kinds of research including autonomous mobile robots using machine learning and data mining techniques as well as deep learning on image, video, and text data. Data mining,Machine learning,Autonomous mobile robot,Robot,Deep learning,Anomaly detection,Exception discovery,Classification,Clustering,Pattern discovery,Learning,Discovery,Artificial intelligence,Pattern recognition,Image processing,Text mining,Human monitoring,Ambient intelligence,Human data,Information visualization

Machine Learning Theory

  • E.Takimoto(Prof.)
  • K.Hatano(Assoc.Prof.)
The problem of decision-making by predicting future data from the past arise in many applications such as stock investment, item recommendation, routing, updating kana-kanji conversion dictionary, and so on. Our group is trying to develop ingenious methods of decision-making for various problems by using machine learning techniques. On the other hand, we also apply the methods developed to optimization problems in machine learning. Furthermore, for various classes for knowledge representation such as Boolean circuits, decision diagrams, neural networks, comparator networks, we investigate their mathematical properties and relationships between them, thereby we analyze computational efficiency of decision making methods. The problem of decision-making by predicting future data from the past arise in many applications such as stock investment, item recommendation, routing, updating kana-kanji conversion dictionary, and so on. Our group is trying to develop ingenious methods of decision-making for various problems by using machine learning techniques. On the other hand, we also apply the methods developed to optimization problems in machine learning. Furthermore, for various classes for knowledge representation such as Boolean circuits, decision diagrams, neural networks, comparator networks, we investigate their mathematical properties and relationships between them, thereby we analyze computational efficiency of decision making methods. Online decision making,Computational learning theory
Automated Reasoning & Applications of Machine Learning

Automated Reasoning & Applications of Machine Learning

  • H.Fujita(Assoc.Prof.)
  • M.Koshimura(Asst.Prof.)
Automated Reasoning is a key technique in intelligence science and technology. It is expected to be applied to a wide range of fields including hardware/software verifications, supporting legal reasoning, and so on. Currently, we are developing efficient automated reasoning systems such as SAT/MaxSAT solvers and their applications. We have tackled the following problems including large-scale combinatorial problems: Ramsey problem, scheduling problem, correcting errors in AES key schedule images, coalition structure generation problem, and inductive logic program. Nowadays, various data are collected every day. Many machine learning techniques have been developed so far. We would like to practically show the effectiveness of these techniques using real data. Currently, we are working on the following two applications: classification of several objects in microscopic images of body fluids and anomaly detection for factory equipments.

Multi-Agent Systems

  • M.Yokoo(Prof.)
  • T.Todo(Asst.Prof.)
The main research field in our laboratory is multi-agent systems, where multiple intelligent agents coexists. Especially, our research focuses on systems where humans and software agents interact and coordinate. Specific research topics include two-sided matching and auctions, for which we model agents’ behaviors based on game theory and micro-economics, and develop/analyze social decision rules based on algorithm theory and optimization. Market Design,Artificial Intelligence,Mechanism Design,Matching,Combinatorial Auctions,Repeated Games,Prisoner’s Dilemmas,Hospitals/Residents Matching,POMDP,Constraint Satisfaction,Distributed Constraint Satisfaction,Distributed Constraint Optimization,Social Choice Theory,Voting Theory
Neuroimaging and Neuroinformatics

Neuroimaging & Neuroinformatics

  • K.Iramina(Prof.)
Iramina’s lab is under the administration of the Faculty of Information Science & Electrical Engineering, Kyushu University, and Graduate School of Systems Life Sciences which is a unique educational organization. There are two major research fields in our lab. One is brain function imaging which aims at the elucidation of human brain function; the other one is brain function modeling which is applied to various fields by constructing the model of brain activation. In details, we study in the fields of the measurements of brain function by EEG (Electroencephalography), NIRS (Near-Infrared Spectroscope) and TMS (Transcranial Magnetic Stimulation), the development of measurement technology and the simulation of brain activation. The elucidation of the mechanism of brain function is one of foundations of life science, and it can be applied to almost all the fields. Have a deep understanding of brain information processing, and apply the research results to fields of life science, medicine, welfare and education is the purpose of our study. Since we are studying in an interdisciplinary domain, we take into account the collaboration of medicine, biology, pedagogy and psychology is important in our study. Neuroscience,Neuroengineering,Brain Information Science,Event related potential,fMRI,Brain Machine Interface,Cognitive function,Mild cognitive impairment (MCI),Alzheimer disease
Natural Language Processing

Natural Language Processing

  • Y.Tomiura(Prof.)
Natural Language Processing (NLP) is a field on technology to process sentences written in natural language such as Japanese and English using computer. As informationization advances and a large amount of information is flooded, NLP focuses attention as a technology for efficiently accessing necessary / important information and for analyzing a large amount of text. With the advent of Deep Learning, the performance of various NLP technologies including machine translation has been remarkably improved, and expectations for NLP are increasing more and more. We are conducting research on identifying and clustering sentences or documents based on parameter estimation of statistical language model, and research on estimating similarity between sentences or documents by Deep Learning. We are also conducting research on the analysis of olfactory information using a model similar to the statistical language model used in the above research. Based on the images of the activation patterns of the neurons on the olfactory bulb (the first brain part receiving the odor information) of the rats when smelling various substances and the physical and chemical properties of the substances, we are working to identify the primitives of odors and the parts of the olfactory bulb that ignites when they are detected. In addition, we are working to separate and visualize odor traces (odor source) based on measured data by multi-channel odor sensor. Machine Learning,Organizing Information,Statistical Model,Text Mining,Data Mining,Data Science
3D Multimedia Contents

3D Multimedia Contents

  • Y.Okada(Prof.)
Our laboratory is researching and developing fundamental technology for 3D multimedia contents of still images, videos, 3D shapes, motion data and so on. In addition to search and creation technology for them and visualization technology, the research interests of our laboratory also include voice input/output interface for 3D-CG contents, motion input interface based on video images, virtual reality applications using a haptic device like Phantom, network collaboration technology for instantly and easily creating a virtual space of 3D-CG in which multiple users can take various intellectual activities collaboratively with each other. Our laboratory also conducts research on the development environments of 3D games and educational materials using recent ICT.

e-Science

  • D.Ikeda(Prof.)
Due to big data and the development of ICT, computer simulation and data analysis with computers are used in many disciplines. While computers have been supporting tools for experts, there is an emergence of a new discipline, called e-Science, in which computers are main approaches. In our lab, under the vision that "general public will be participating a process of science", we are conducting researches, such as computer simulation and data mining, and infrastructures for e-Science.

Theory of Computing

  • A.Kawamura(Assoc.Prof.)
Algorithmics Computation Theory computational complexity,mathematical logic,foundation of mathematics,numerical analysis,validated numerics,differential equations,computation model,randomness,discrete geometry,combinatorics,combinatorial optimization,scheduling,mathematical informatics,mathematical engineering,natural computation,mathematical programming,dynamical systems,graph theory,analysis of algorithms
Image and Media Understanding

Image & Media Understanding

  • R.Taniguchi(Prof.)
  • A.Shimada(Assoc.Prof.)
  • D.Thomas(Asst.Prof.)
  • T.Minematsu(Asst.Prof.)
In the Laboratory for Image and Media Understanding (LIMU), our goal is to establish a novel framework to (1) retrieve social information from observation data obtained with various sensors and (2) to create innovative content for the society by analyzing those data. While developing the tools necessary to build such a framework, we carefully design the algorithms so that anybody in the society can later interact with the cyber–physical world to improve analysis performances and users experience. To this end, the research in the lab is focused around two main axis: Computer Vision (CV) and Cyber-Physical System (CPS). The goal of Computer Vision is to make the computer “see” the world. This means to develop techniques to analyze, recognize and process visual information such as images and videos. Among other problematics of CV, one important topic is how to accurately measure and recognize 3D shapes and their motions for efficient scene understanding. This can be done by using multi-view cameras or depth cameras. 2.5D data captured by such cameras can be combined to create useful 3D content. In the lab, captured visual data are used for application in the agricultural world. Results of our analysis on plant growth, vegetable production and harvesting are provided to our farmer collaborators with various information that help for everyday support and production improvement. In this research (which is a part of the CPS project), we are making much efforts to establish the next-generation agricultural Internet of Things (IoT). Various sensors are installed in farms and captured data are analyzed using most recent machine learning technologies. On the other hand, we also conduct analysis of educational big data such as students’ learning activities collected from digital textbook systems and learning management systems. The various educational data are analyzed to provide real-time feedback systems for visualizing student’s learning activities and teaching materials recommendation systems personalized for students individually. These results can be used to develop services leading to a more efficient and sophisticated society. Deep learning,Augmented reality,Virtual reality,Big data,Video analysis,Artificial intelligence,Visualization,User interface,Learning analytics

Image Information & Robotics

  • K.Morooka(Assoc.Prof.)
We do research on support systems for medicines and welfare by using information and robot technologies to improve the quality of human life. Our research focuses on three topics: 1) human digital atlas composed of shape and function of human organs; 2) computer aided support systems for therapy and diagnosis by using image information processing; 3) nursing education systems. Medicine,Image

Real-world Informative Robotics

  • R.Kurazume(Prof.)
  • A.Kawamura(Asst.Prof.)
  • S.Miyauchi(Asst.Prof.)
We are conducting research on robot and computer vision systems to realize CPS (Cyber Physical System) using IoRT (Internet of Things and Robot technology). CPS is a fundamental technology for developing and maintaining urban society efficiently and safely. To realize CPS, sensing technology including IoT for modeling real world in cyber space, and robot technology for changing real world physically are critical components. In our laboratory, a variety of sensing and robot technologies are studied to develop CPS such as ambient sensing, first-person vision, laser sensing, humanoid robot, service robot, rescue robot, and mobile robot. Service robot,life support robot,3D modeling,Environmental recognition,Soft robotics
Human Interface

Human Interface

  • S.Uchida(Prof.)
  • R.Bise(Assoc.Prof.)
  • D.Suehiro(Asst.Prof.)
  • H.Hayashi(Asst.Prof.)
Pattern recognition is a research field that focuses on the artificial realization of the human cognitive system. It is still difficult even though computers are highly developed today. For example, we humans can easily recognize a car at a glance as “That is a car.” However, there are numerous models in cars, and appearance will change depending on a point of view even if we look at the same model. The easiest way to handle this issue is to classify the input based on the similarity to patterns stored in a computer in advance, but challenges remain such as the definition of similarity. The key point is how to handle variety in patterns that causes difficulty. In this laboratory, we develop pattern recognition techniques and the related applications such as image processing/recognition, bioimage informatics, machine learning, and character engineering/science. We are challenging these attractive problems with our unique techniques and competing against the world. Artificial intelligence,Deep learning,Neural network,Medical image,Sports,Biosignal,Time series,Game theory

Advanced Softwar

  • A.Fukuda(Prof.)
  • K.Hisazumi(Assoc.Prof.)
  • A.Ahmed(Assoc.Prof.)
  • S.Ishida(Asst.Prof.)
ICT (Information Communication Technologies) are more required in our lives. We are developing technologies in three directions to tackle the problems in our daily lives and in social lives. Fundamental technologies: We are developing low cost sensing technologies such as acoustic vehicle sensing system for better understanding of the world around us. We are also working on wireless communication technologies to collect sensing data from small IoT devices. Software development technologies: Embedded systems including small sensors and automobiles have no output devices, which put difficulties in software development, especially on debugging. We are developing DSLs (domain specific languages) that drastically reduce development costs. We are also developing DSLs that give us rich information such as power consumption for better software development. Reverse Innovation: ICT became the core component to serve social services (healthcare, education, business) in developing countries. We are developing social needs-based solutions that can directly serve the society e.g. remote healthcare system to reduce healthcare cost, new car sharing model that can increase social impact. We examine our concept in developing countries and plan to use the same technology in developed countries as well. Embedded Systems,DSL (Domain Specific Languages),IoT (Internet of Things),ITS (Intelligent Transport Systems),Wireless Communications,Portable Health Clinic,Mobility as a service,Sustainable Information Platform

Principles of software engineering & programming languages

  • N.Ubayashi(Prof.)
  • Y.Kamei(Assoc.Prof.)
Our research group is studying software engineering and programming language, which are foundations of software development. Software engineering is a field of study that investigates how to solve problems of software from the aspect of engineering. We are studying from the following three viewpoints: "Advanced programming experience", "Highly reliable software based on formal methods", and "Mining software repository for discovery of collective intelligence". The first two utilize AI, machine learning, discovery of collective intelligence, theories of programming languages, and formal methods. The last discovers high quality information from largely accumulated development history in repositories. Software architecture,Software testing,Formal method,Formal verification,Programming language mechanism,Artificial intelligence,Machine learning,Collective intelligence,OSS,Open source software,Mining software repositories,Code analysis,Software metrics,Model checking,Theory of programming languages

Human-centered Intelligence

  • T.Mine(Assoc.Prof.)
We aim to study human-centered intelligence. To this end, we analyze real data under real situations and develop mechanisms to estimate, extract, or acquire information users want and provide it to them when they need, considering their contexts, intentions, preferences, interests, and privacy issues. For example, to share and leverage information to help user mobility, we are developing an information sharing and leveraging platform for smart mobility called Ito Campus Life: https://ito.ait.kyushu-u.ac.jp/itocamlife/, and a platform to record, reuse and leverage information about people’s communication situations recognized in real world, called Real SNS. To capture and predict road congestions at some specific area, we conduct mining of time-series location data such as vehicle probe data. We also conduct mining of open data provided by municipalities to find and leverage information to enrich civil life and to take away concerns and troubles on everyday life. Further, collecting and analyzing student comments about their learning written after every lesson, we develop methods to estimate their learning situations or performance and build mechanisms to give feedback to them to improve their learning motivations and activities. Data Mining,Text Mining,Information Sharing,Information Recommendation,Personalization,Machine Learning ,Multi-Agent Systems,Human-centered System,Learner Model,Comment Mining,Smart Mobility,Big Data Analysis,Intelligent Transport Systems,Natural Language Processing,Information Retrieval,Deep Learning
Advanced Network and Cybersecurity Lab

Advanced Network & Cybersecurity

  • K.Okamura(Prof.)
The main research topics in this laboratory is Advanced Internet and Cybersecurity. Various research themes on networking and security are ongoing with companies and international partners in the world. Malicious software analyzing ,White Hacker,Cyber Range,SDN (Software Defined Network),Machine Learning

Computer Vision & Graphics & VR/AR

  • H.Kawasaki(Prof.)
In this laboratory, we focus on computer vision (CV) and computer graphics (CG) research as well as application to virtual and augmented reality systems (VR/AR/MR). In order to contribute to those research areas, efficient acquisition, modeling and photo-realistic visualization techniques are the core of our research purpose. By using the outcomes of those research, development of medical imaging systems and intelligent transportation systems is also our important mission. Computer Graphics (CG),Computer Vision (CV),Virtual Reality/Augmented Reality (VR/AR/MR),Human Computer Interaction (HCI),Medical Imaging Systems,Intelligent Transport Systems (ITS)
Intelligent Software Engineering Laboratory

Intelligent Software Eng.

  • J.Zhao(Prof.)
  • Y.Feng(Asst.Prof.)
  • Y.Omori(Asst.Prof.)
Software engineering (SE) is the systematic application of scientific and technological knowledge, methods, and experience to the design, implementation, testing, and documentation of software. Artificial intelligence (AI) is a study on the design and realization of an intelligent information processing system by computer. The intelligent software engineering laboratory aims to construct reliable and secure software systems and AI systems by synergizing software engineering with artificial intelligence. Specifically, we are doing research with three directions. Software engineering for AI: We are developing methods to deeply understand defects (bugs) and adversarial examples in artificial intelligence (deep learning) systems, and approaches (analysis, testing, debugging, and verification) to guarantee the reliability and security of artificial intelligence (deep learning) systems. Software Automation: We are developing approaches for automatic code generation and bug fixing of software systems using artificial intelligence (deep learning). Intelligent IDE: We are building intelligent software development environments. Intelligent Software Engineering,Software Testing,Deep Learning,Program Analysis and Verification,Programming Language,Artificial Intelligence,Automatic Programming
Wireless Communication Laboratory

Wireless Communication

  • O.Muta(Assoc.Prof.)
To deal with the rapid increase of mobile data traffic in wireless communications, it is required to develop wireless communication techniques which achieve high spectrum efficiency. In our laboratory, we are doing researches on signal processing and data transmission techniques for future wireless communication systems. Wireless Communications,Cellular phone,Wireless LAN,MIMO,Modulation/Demodulation
感性ナノバイオセンサ研究室

Kansei Nano-Biosensor Research

  • K.Toko(Prof.)
  • H.Kuriyaki(Assoc.Prof.)
  • T.Onodera(Assoc.Prof.)
  • Y.Tahara(Assoc.Prof.)
  • R.Yatabe(Assoc.Prof.)
  • M.Kozaki(Asst.Prof.)
Kansei Nano-Biosensor Research Laboratory developed Taste Sensor for the first time in the world. The Laboratory is headed by Professor Kiyoshi Toko, who is also in charge of Research and Development Center for Taste and Odor Sensing, and covers the following researches: Hyper functionalization of taste sensor developed by bio and electronics unified science technologies. Development of the odor sensor with ultra-high sensitivity which is more sensitive than a nose of a dog which detects explosives and fragrances by means of antigen-antibody interactions. Development of biosensor which targets low molecular weight substances in biofluids such as blood, urine, sweat, saliva, etc. Development of oxygen sensor, gas sensor and photo rechargeable battery by using multilayer substances such as mica and graphite. Furthermore, the laboratory is doing research to expand the technologies to multilateral applications. Taste sensor,Odor sensor,Electronic tongue,E-nose,Foods,Biomarker,Antigen-antibody interaction,Taste map,Lipid/polymer membrane,Surface plasmon resonance,Oxygen sensor,Photo-rechargeable battery,Intercalation

Integrated magnetic device

  • K.Matsuyama(Prof.)
  • T.Tanaka(Assoc.Prof.)
Our laboratory focus on the study of novel magnetic phenomena and the development of magnetic devices forming three dimensional fine structures using nanometer sized microfabrication technologies. The numerical and experimental advanced researches are being implemented for realizing future ultra-high density recording devices such as hard disk drives and magnetic random access memories, and novel functional logic devices.

Plasma Eng.

  • M.Shiratani(Prof.)
  • K.Koga(Prof.)
  • K.Kamataki(Asst.Prof.)
Plasma Engineering Laboratory (PEL) is nationally and internationally renowned for our research regarding plasma science. Principal research challenges in PEL are as follows: Development of high quality and high throughput processes by controlling reactions in plasma, Plasma synthesis of functional nanoblocks and their application, Elucidation of interaction between plasma and interface of materials, Establish of plasma agriculture. Present research topics are as follows: High quality and highly stable hydrogenated amorphous silicon films for thin film solar cells, Third generation solar cells using nanoparticles, Deposition profile control in fine structure using anisotropic plasma chemical vapor deposition, Nanoparticle composite films for ultra low-k film in ULSI, Fabrication of nanosystems using plasmas, Mechanism of dust particle formation and transport in fusion devices, Plasma growth enhancement of plants.

Organic Electronic Device

  • K.Hayashi(Prof.)
  • F.Sassa(Asst.Prof.)
We are researching and developing electronic devices based on organic materials. Chemical sensor devices such as odor sensor, imaging devices for chemical world, nano-scale organic electronic devices for high functional electronic systems are our research target. Information processing of sensor output, odor matching, and odor database are also our aims. Research on Materials, Devices, and Systems are our tasks. Odor sensor,Odor imaging,Imaging device,Sensor robot,IoT,Digital olfaction,Molecular parameter analysis,Odor quality visualization,Bio-mimetic,Organic electric material,Plasmonic gas sensor,Ultra-high sensitive sensor,SERS,ナノ粒子,Molecular recognition,MIP,biometrics,Human exploration ,Forensic science,Agricultural ICT
Spintronic Device Laboratory

Spintronic Device

  • H.Yuasa(Prof.)
  • Y.Kurokawa(Asst.Prof.)
Our purpose is to create new devices by utilizing Spintornics of the magnetic materials.  The Internet of things (IoT) society is ready to spread in the world, which connects not only electric information but also the things and people. Because the both quality and quantity for IoT electronic devices become required higher than ever before, the more innovative technologies are needed and studied in various science fields.  Spintronics of magnetic materials is one of candidates. In spintronics the spin plays an important role as well as electron. This is why Spintronics has the potential realizing the green devices without Joule energy loss.  Now is the favorite time to study Spintronics toward the future electronic devices in order to contribute the future society. Hard disk drive,MRAM,Data storage,Race track memory
Nanoelectronics

Nanoelectronics

  • T.Sadoh(Assoc.Prof.)
Further improvement of performance of large-scale integrated circuits (LSIs) is essential to realize the next-generation of electronics. Improvement of LSI performance has been achieved by scaling the Si transistors in LSIs. However, this approach is facing the physical limit. Moreover, in the next generation of electronics, advanced LSIs should be merged with various human-machine interfaces on flexible sheets, and novel devices, such as flexible electronics, should be developed. For this purpose, employment of novel functional materials is essential. In line with this, we are developing various growth techniques of novel functional materials, such as group-IV-based semiconductors, and investigating application to advanced devices. Advanced LSI,Novel functional device,Semiconductor hetero-structure,Crystal growth,Flexible electronics

Electronic Materials & Devices

  • N.Itagaki(Assoc.Prof.)
An exciton, which is an electrically neutral quasiparticle, is a bound state of an electron-hole pair attracted by the electrostatic Coulomb force. The most interesting feature of an exciton is that it can be generated by and converted back into a photon within a short time (<nsec). Thus, excitonic devices potentially bring great improvements to the speed of electronic–optical (E/O) conversion along with significant miniaturizations of E/O converters. The major challenges for excitonic devices are finite exciton binding energy (Eex) and finite exciton lifetime. The small exciton binding energy of typical excitonic materials, such as GaAs, limits the device operation temperature below 125K. While, the exciton lifetime in such materials is less than a nanosecond, allowing excitons to travel only a small distance before it recombines. In this laboratory, we have developed an excitonic device with a new semiconducting material, (ZnO)x(InN)1-x (abbreviated as ZION), which has large Eex as well as large piezoelectric constant. The large Eex potentially enables excitonic devices that are operational at room temperature. Another advantage is the long exciton lifetime, allowing excitons to travel long distance before it recombines. The aforementioned excellent properties of ZION films and its QWs open a new avenue for studies toward the practical use of excitonic devices. sputtering,oxide semiconductor,zinc oxide,crystal growth,heteroepitaxy,inverse SK mode,In2O3:Sn,amorphous transparent conducting oxides,impurity mediated crystalization,plasma

RFIC & Microwave Communication Device

  • H.Kanaya(Prof.)
  • R.Takigawa(Asst.Prof.)
In this laboratory, we are now focusing our researches on the following areas: High speed, high linearity and low noise system LSI components for wireless communications systems. Wideband RF front-end components for ultra-wideband (UWB) applications. Digital Radio or Digital RF Processor and its system components i.e. Digitally assisted RF/Analog circuits such as ADPLL (All-digital phase locked loop), DCO (digitally-controlled oscillators), sampling mixers, digital controlled PA and LNA etc. for Software defined radio or other reconfigurable applications. Electrically small antennas for narrow band and UWB applications. Interconnection and packaging technology of a chip to an antenna to reduce parasitic components. RF micro energy harvesting circuit for medical application IoT,Radio wireless communication ,CMOS circuit,Antenna,Implant,Endoscope,Energy harvesting circuit,Power amplifier,Mixer,Array antenna,Packaging

Optoelectronics integration system

  • K.Kato(Prof.)
  • T.Kuboki(Asst.Prof.)
One of the most important role of communication networks is to suport operation of internet. For this purpose, data of great volume is transmitted through communication networks. Data volume has increased explosively beyond comparison, from voice, picture, movie and high resolution motion pictures. Data volume will grow at an accelerated pace, and networks must process these data smoothly. For data processing in future networks, novel high speed devices with new function and low power consumption are required. Photo-electronic devices and photo-electronic integrated systems are powerful candidates for this purpose. In this system, electronics and photonics technologied are merged to fabricate novel devices utilizing each strength. Purpose of our laboratory is to create devices of new concept based on reserch on electronics and photonics technologies. It is our pleasure if our research plays important roll to solve the problems which human society faces. Semiconductor laser,High-speed wireless transmission,High frequency,Optical communication,Optical fiber communication

Micro / Nano Laser Device

  • Y.Oki(Prof.)
  • H.Yoshioka(Asst.Prof.)
In the micro / nano laser device group, we are conducting research on laser engineering and organic optoelectronics. At the center of the research is research and development of printable optical devices such as organic lasers using organic materials and organic / nanostructures, optical fiber sensors, solar cells, photodetectors, etc. In addition, we are also conducting research on semiconductor lasers, diode-pumped solid-state lasers, excimer laser processing, ultraviolet light organic material process, etc. We are also working on research on advanced measurement using these optical technologies. Optical waveguide,Optical microcavities,3D printer,Ink-jet technology,Optical organic materials,Silicone Optical Technology (SoT),Dye lasers,Diode-pumped solid-state lasers,Excimer laser processing

Applied Nano-photonic Information Eng.

  • N.Tate(Prof.)

System Design

  • T.Kawabe(Prof.)
  • J.Murata(Prof.)
  • R.Funaki(Asst.Prof.)
  • T.Yuno(Asst.Prof.)
System Design Laboratory mainly conducts two kinds of studies. One is the motion and vibration control of automobiles. For realizing the ecological and safe automotive control, we aim at developing (1) a driver assistance system that compensates the work of driving control systems or human drivers by using the information of vehicle and road conditions, and (2) a driving control system that can effectively exploit the work of driver assistance system. In particular, we address these issues on the basis of control engineering. Moreover, we aim at establishing the algebraic nonlinear-control theory and applying it to engine control. The other addresses design and operation of large-scale complex systems. A typical example is the system covering from electrical power generation to its consumption, which is a large-scale system with many machines and devices and has high complexity resulting from involvement of various human decisions. Learning systems that support analysis and design of these systems are being developed, together with optimization techniques that make the systems and their operations best. As their applications, research is being done on electrical energy management systems. Moreover, we study optimization systems that find the most suitable thing such as a graphic art and a fashion design for a person, where suitability depends on the person-specific preference or sensibility.

Superconductivity

  • T.Kiss(Prof.)
  • K.Higashikawa(Assoc.Prof.)
  • T.Suzuki(Asst.Prof.)
Our studies focus on understanding and resolving key performance issues of forefront superconducting materials and their power applications. We have been developing high performance superconducting materials which can carry high current more than 100 of times larger than that of conventional copper conductors with almost no dissipation. Perspectives of these studies are to lead breakthrough to such fields as power grid, alternative energy, transportation and advanced medical systems. We educate young researchers, graduate-, and under-graduate-students through the research projects in collaboration with national- and international counter parts. Superconductivity,Critical current properties,Advanced measurement technology,Electrical and electronic materials,Power and energy applications,Advanced medical system

Laser

  • D.Nakamura(Assoc.Prof.)

Applied Electrostatics

  • J.Suehiro(Prof.)
  • M.Nakano(Assoc.Prof.)
Despite the long history, electrostatics is still challenging and exciting research subjects. Thus far, applications of electrostatics have been found in various technologies including high voltage apparatus, ink jet printer, xerography, electrostatic precipitator, exhaust gas treatment and so on. Recently, electrokinetic phenomena such as electrophoresis and dielectrophoresis have found useful applications in biotechnology and nanotechnology. Besides benefits from the industrial applications, electrostatics still provides new insights about fundamental relationship between substance and electrical charges. In our lab, we are involved in research subjects based on applied electrostatics for the cross-disciplinary area such as bio and nanotechnology. Especially, we currently focus on electrokinetic manipulation of micro and nano-scaled materials and its application for fabrication of Bio-MEMS devices and chemical sensors. We are always looking for an opportunity to collaborate with outstanding researchers and ambitious young students, who want to share the same academic interests and passion for science. Aligned nanocomposite ,Bacteria detection ,Carbon nanotube ,CNT gas sensor ,DEPIM,Dielectrophoresis ,Dielectrophoretic impedance measurement ,DNA detection ,Electrical alignment ,Electric apparatus diagnosis,Gas insulated switchgear ,Impedance measurement,Nanocomposite,NO2 detection,SF6,Virus detection

Green Power Electronics Circuits

  • M.Shoyama(Prof.)
Today, dependence on electrical energy is so entrenched in our societies that we cannot imagine our life without electricity, thus indicating that the future growth of demand for electrical energy tends to continuously increase. Furthermore, energy-saving and the promotion of the use of renewable energy are strongly required from environmental problems such as global warming and exhaustion of fossil fuels. The research projects at the "Green Power Electronics Circuits Laboratory" cover a wide range of power electronics circuits and systems which are eco-friendly and will contribute to a clean future society. Switching Power Supply ,Energy Saving,Renewable Energy,Sustainable Society,Environmental Problems,Current Mode DC-DC Converter,DC/DC Converter for Vehicle,Bi-directional DC-DC Converter,Inverter for Motor Drive,Contactless Power Transfer Systems,EV,Smart Grid,Digital Control,Soft-Switching,EMC,GaN Power Device,SiC Power Device
Applied superconductivity laboratory

Applied Superconductivity

  • M.Iwakuma(Prof.)
The advantages of superconductivity are “zero electrical resistivity” and “high current density”. The critical temperature of high-temperature superconductors(HTS) exceeds liquid nitrogen temperature of -196℃. HTS should bring about electric machines and devices with light weight, compactness and high efficiency. We aim to apply the superconductor technology to a variety of industrial field. Development of superconducting electric power machines and devices: Superconducting transformers and cables with a current limiting function have been developed and demonstrated in a real power-grid scale. Superconducting rotating machines with compactness, light weight and high efficiency are developed for electric aircrafts and ships, and also industrial uses. Investigation of the electromagnetic properties of HTS wires and coils: Electromagnetic properties of HTS wires with anisotropy are quantitatively investigated by using a saddle-shaped pickup coil which were studied out in our laboratory. On the basis of observed properties, new configuration of wires and windings are proposed for AC loss reduction and current-capacity enhancement and the performance is demonstrated by making a small model. Environment ,Energy,State of the art,Coil,Electric magnet

Advanced Magnetic Sensing System

  • T.Sasayama(Assoc.Prof.)
We can obtain information inside samples in non-contact and non-destructive manners by using magnetic fields. Utilizing this property, we can develop advanced magnetic sensing systems in various fields, such as medical, bio, material, and environment. In our laboratory, we are developing ultrasensitive magnetic sensors and systems for biosensing and non-destructive testing. Specifically, we are developing biosensing systems utilizing magnetic markers, such as magnetic immunoassay to detect biological materials and magnetic particle imaging for in-vivo diagnosis. We are also developing low frequency eddy current testing to evaluate iron materials which are used in many infrastructures.

Superconductivity Application

  • K.Kajikawa(Assoc.Prof.)
Energy consumption has been increasing year by year due to recent progress in information and communication technology (ICT) and rapid expansion of its applicable range. Furthermore, environmental problems such as global warming caused by emission of carbon dioxide have become severe, so that it has become important to establish a so-called "eco-friendly technology". Superconducting technology is expected to be a candidate to lead to overcome both the energy and environmental problems in the near future. In the Superconductivity Application Laboratory, basic research and development (R&D) are in progress for realization of advanced superconducting large-scale devices applicable in various fields such as electric power, energy, industry, transportation, medical service, molecular structure analysis, etc. In the fields of molecular structure analysis and medical service, for example, in order to develop high temperature superconducting (HTS) magnets for nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) systems, methods to eliminate a screening-current-induced field are originally proposed and the practical research toward their realization is on-going through international patent application. In the field of electric power, a maintenance-free superconducting pump composed of superconducting motor and cryogenic magnetic bearing for long-length circulation cooling of HTS power transmission cable is also investigated under the financial support from public funding. Moreover, in the field of transportation, superconducting level sensors to measure the amount of liquid hydrogen in the container continuously are originally proposed and developed toward applications to satellite launch rocket, hydrogen vehicle, etc. Hydrogen society,Hydrogen station,Liquid hydrogen,Cryogenics,Space,AC loss,Thermal stability,Flux pinning,Magnetization ,Electrical resistivity,Solenoid,Inductance,Numerical analysis,Electromagnetic field,Energy minimization,Energy conservation,High efficiency,Level sensor,Superconducting coil

Laser processing

  • H.Ikenoue(Prof.)
Gigaphoton Next GLP is the first Joint Research Department of Kyushu University, which was founded in Sep. 2011 by support of Gigaphoton Inc. for investigating next generation gas laser processing (Next GLP). Gigaphoton Inc. is the world’s leading company supplying the laser light source for lithography processes. Laser processing technologies have been widely utilized to various industrial applications such as electronic devices, automobile, medical care and new material synthesis. Our mission is to contribute to society through development of innovative laser processing technologies. Our laboratory is supported by research activities from Asano Laboratory and Nakamura Laboratory of Kyushu University.
Cyber-Physical Computing

Cyber-Physical Computing

  • I.Koji(Prof.)
  • T.Ono(Assoc.Prof.)
Our research goal is to explore next-generation computer system architecture that can be achieved by integrating the information and electrical/electronic technologies. We also aim to develop new applications that stand on growing computing performance in order to solve critical issues in the world such as energy issue, cyber-security, and so on. Our scope is from emerging devices such as single-flux-quantum and nanophotonics to computer architecture, system software, and applications. Hardware security,Data center,Warehouse-scale computing,High-performance computing,Architecture,Cyber-physical system,Optical computing,Superconductive computing
High-Frequency Integrated Circuits and Systems Laboratory

High-Frequency Integrated Circuits & Systems Laboratory

  • R.Pokharel(Prof.)
We are investigating the possibility of a paradigm shift from a battery-inherent to a battery-free wireless and embedded sensor system. The fundamental techniques include the development of the ultra-low power and low voltage analog/high frequency integrated circuits in CMOS technology for future generation wireless communication systems at one hand, and at another, efforts are going to apply 5G carrier frequency to transfer not only the signal/data but also power to realize a wire-free power supply system to replace the conventional batteries to drive the future wireless and embedded sensor systems. RFIC,High Frequency Integrated circuits,Analog circuits,5G Wireless Communications,Battery-free systems,Wire-free power supply system,Wireless power transfer,Energy Harvesting methods,System On Chip (SoC),Wideband systems,Lower Power and low voltage integrated circuits
Systems and Control Laboratory

Systems & Control

  • K.Yamamoto(Assoc.Prof.)
A system is a group of interacting elements and the aim of “control” is to achieve the desired system behaviour. From physical systems such as robots, drones and vehicles to signal processing such as musical signals and images, anything that has dynamics can be a candidate for the systems to be controlled. Our laboratory studies Systems and Control theory and various applications in this area. In particular, we work on networked systems and multi-agent systems such as vehicle platooning and cooperative drones. Each agent in such a system can only collect some partial information in the network such as the position and/or speed of the neighbouring agents, and our task is to control the behaviour of the whole network under such constraints. We also work on vibration control such as vibration suppression for multi-storey building subjected to an earthquake, and digital signal processing.
Opto-Electronics Laboratory

Opto-Electronics

  • K.Hamamoto(Prof.)
Breath sensing using optical waveguide gas cells for handy health-check system High speed laser diode toward Tbps class extremely high speed direct modulation by using active-MMI, which has been proved and demonstrated by us Optical mode switch for mode-division multiplexing targeting 1,000 times transmission capacity enhancement Photonic integrated circuits,Laser diode,Optical switch,Opto-electronic device,Plasma process,Optical bio-sensing,Optical communication,Optical router,Space division multiplexing

HumanoPhilic Systems

  • S.Ishida(Prof.)
HumanoPhilic Systems Laboratory conducts research on cyber-physical systems (CPS: Cyber-Physical Systems) that support human life, by combining various information technologies, such as sensing from the real world, data processing in the cloud, and networking that connects them. The term "HumanoPhilic" is the combination of "human" and "philic" which means having a high affinity. We focus on human activity recognition using sensors (IoT) and machine learning (AI). Our research topics include both hardware development and software implementation. A major research issue is to explore what kind of sensors and algorithms can recognize the internal state (Emotions and stresses) as well as the external state of a person (physical action). Furthermore, in recent years, as novel research beyond human activity recognition, we started focusing on a behavior change support system (BCSS). BCSS means information technologies that affect human future behavior. Activity Recognition,Behavior Change Support System,Wearable Computing,Learning Analytics ,Energy Harvesting,Stress Estimation,Work Engagement Estimation,Ubiquitous Computing,Pervasive Computing,Mobile Computing,Web Information System,Disaster Information System,Notification Management,Social Data Analysis,Participatory Sensing,Vehicular Sensing ,Cyber Physical System,Sensor Network,Application

Applied Nuclear Physics & Electromagnetic Instrumentation

  • N.Ikeda(Prof.)
  • Y.Uozumi(Assoc.Prof.)
  • H.Arima(Asst.Prof.)
  • Y.Yonemura(Asst.Prof.)
The group is engaged in researches on accelerator-based science and technology. One of the main subjects of research is the development of the FFAG accelerator, a new type of synchrotron with a static magnetic field. The other important subject is precise measurements of the nuclear reactions with beams of intermediate energy particles for application of the reactions in various fields. accelerator science,circular accelerator,electron,meson,neutron,pion,proton

Radiation Physics & Measurement

  • K.Maehata(Assoc.Prof.)
  • N.Iyomoto(Assoc.Prof.)
  • N.Shigyo(Asst.Prof.)
Radiations (energetic neutron, proton, photon, electron, etc.) are widely utilized for nuclear engineering, material science, biology, medical science, environmental science, archaeology and so on. Our research goal is sophisticated radiation utilization in various fields. We study nuclear reactions such as neutron production from MeV to GeV region for radiation therapy and accelerator driven subcritical system. Weak interaction has been passed up in usual day because of it's difficulty of detection. Solution of weak interaction mechanism is investigated for daily use of neutrinos. Various types of radiation detectors using experimental techniques in low temperature physics have been developed for innovative X-ray spectroscopy required in wide range of fields such as nuclear fuel facilities, synchrotron radiation facilities, electron microscope facilities and space science satellites. Generation of pulse intense neutron field using a proton accelerator is studied for noninvasive brain tumor treatment. synchrotron radiation facility,Various type of radiation detector,nuclear fuel facility,electron microscope facility,solution
Nuclear Energy Systems

Nuclear Energy Systems

  • K.Morita(Prof.)
  • W.Liu(Assoc.Prof.)
  • T.Matsumoto(Asst.Prof.)
To develop new technologies for efficient operation and safe control of nuclear reactor systems, it is necessary to clarify quantitatively details of complicated thermal-hydraulic phenomena existing in energy transport and conversion processes. For example, understanding of reactor behavior, its consequences and impact in severe accidents, where the reactor core is largely damaged, is essential to evaluate reactor safety margins and to take measures for prevention of accident progression and for mitigation of accident consequences. In addition, in advanced nuclear reactors, to counter accidents, passive safety systems that rely only upon natural physical phenomena such as gravity, natural convection, etc. without electrical power supply and human intervention are required for reactor shutdown and the subsequent reactor cooling. In this research group, researches and developments relevant to safety designs and assessments are performed to enhance safety features of advanced light-water reactor, fast reactor and gas cooled reactor in the field of nuclear thermal-hydraulic and safety. dynamic behavior of reactor,fluid flow,possibility of accident,reactor safety assessment,such hypothetical core damage accident,multi-phase flow phenomena,damaged core,neutron kinetic behavior,multi-phase flow analysis,multiple phenomena of heat transfer,particle-based fluid simulation,event progression,up-to-date CFD technology,experimental study,phase change
Nuclear Reactor Physics and Fusion Energy Science

Nuclear Reactor Physics & Fusion Energy Science

  • N.Fujimoto(Prof.)
  • H.Matsuura(Assoc.Prof.)
We have been studying the next-generation nuclear power systems composed of advanced reactors, not only fission but also fusion energy systems, with knowledge, intelligence and science of nuclear reactor physics. Major research theme are: core and system characteristics evaluation of high temperature gas-cooled reactors and advanced reactors, nuclear burning characteristics and neutronics for fusion reactor, and tritium production using high temperature reactor. Burn up,Coated fuel particle,Diffusion theory,Fusion reactor,Fusion reactor blanket,High-temperature gas-cooled reactor,Irradiation reactor,Monte Carlo method,Neutronics,Tritium

Radiation Induced Phenomena in Condensed Matter

  • S.Matsumura(Prof.)
  • Y.Murakami(Prof.)
  • K.Yasuda(Assoc.Prof.)
  • S.Yoshioka(Asst.Prof.)
When alloys and ceramic compounds are irradiated with energetic particles, they transfer the kinetic energy in a local region of the material. This causes the formation of radiation-induced defects and 'radiation damage'. Our research group has investigated the atomistic understandings of radiation-induced microstructure evolution, such as nucleation-and-growth process of radiation-induced defects, and phase transformation (order-disorder transition), by utilizing transmission and scanning electron microscopy, such as high voltage electron microscope (JEM-1300 NEF) at Research Laboratory for High Voltage Electron Microscope, Kyushu University, as well as theoretical investigations. These researches are believed to give fundamental understandings to the developments of fission and fusion reactors materials. atomistic understanding of radiation-induced microstructure evolution,High Voltage Electron microscope,fusion reactor material,development of fission

Nuclear Fuel Cycle Eng.

  • K.Idemitsu(Prof.)
  • Y.Inagaki(Assoc.Prof.)
  • T.Arima(Asst.Prof.)
To establish advanced nuclear fuel cycles, innovative nuclear fuels based on zirconia doped with Pu and minor actinides have been developed because of their advantages for nuclear nonproliferation. Also, for commercial nuclear fuels, i.e., UO2 and MOX, their physicochemical properties are studied in terms of high-performance and -safety by using theoretical (ab initio calculation, classical MD simulation and CALPHAD) and experimental approaches. Multi-barrier system for geological disposal of HLW in Japan consists of HLW glass, overpack of carbon-steel, buffer material of bentonite, concrete materials and geological formations. For evaluation of long-term performance of the disposal system, migration behavior of radionuclides in these barrier materials is one of important matters to be evaluated, and we are developing a greater understanding of the glass dissolution/alteration and the radionuclide migration in buffer material of bentonite based on fundamental principles of material science, geochemistry, radiochemistry for reliable modeling. fundamental principle of material science,physicochemical property

Condensed Matter Physics

  • S.Tanaka(Prof.)
  • T.Kawae(Assoc.Prof.)
  • Y.Inagaki(Asst.Prof.)
Condensed matter physics deals with the physical properties of condensed phases of matter such as solids and liquids. A lot of exotic properties due to the quantum effect have been found in condensed phases at low temperatures, since the thermal de Broglie wave length is larger than the order of the interparticle distance. We study a variety of topics related to condensed matter at very low temperatures using dilution refrigerator. Our current subjects are as follows; (1) Quadrupolar Kondo effect and quadrupolar ordering in non-magnetic Gamma3 systems (2) Bose-Einstein condensation in quantum spin systems (3) Quantum effects in atomic scale contacts and single molecule. condensed phase of matter,exotic property,physical property,bose-Einstein condensation

Applied Physics

  • K.Hara(Prof.)
  • H.Okabe(Assoc.Prof.)
  • Y.Hidaka(Asst.Prof.)
Applied physics is a comprehensive academic field that bridges the field of science and engineering. Various factors are complicatedly intertwined with environmental problems and resource depletion problems which are currently major social problems in our country and in order to solve it it is necessary to organically conduct research in various fields. In order to build a recycling-oriented society, our laboratory conducts extensive research ranging from practical technology development to exploration of basic principles from the viewpoint of applied physics. Experiment is mainly for experiments, data is collected by various experiments, and based on the result, data analysis / simulation etc. are carried out, and the phenomenon is understood more deeply. Active oxygen,Actuator,chaos,diffusion,Dissipative structure,Elastomer,Environmental,Environmental stress,Functional material,ICP-MS,Rare metal,Recycling society,Self-organization,Soft matter,Synchrotron
Functional Inorganic Materials Chemistry

Functional Inorganic Materials Chemistry

  • H.Einaga(Prof.)
  • H.Hojo(Assoc.Prof.)
Catalysis science and technology is one of the important technologies for solving energy and environmental problems. Our target is to develop inorganic functional materials and catalytic reaction processes. We design the catalytic materials such as supported metal catalysts, metal oxides, ordered porous materials. The physical and chemical properties of these materials are controlled by changing the constituent elements, crystal structures, surface structures, and morphology. We also study the basic properties of these catalytic materials using high-resolution TEM to clarify the relationship between the structures and catalytic functions. Transmission electron microscopy,Electron energy loss spectroscopy,Morphology control,Epitaxial thin film,Model surface,Functional oxide,Catalyst chemistry,Materials Science,Nanoparticle,Nanotechnology,Chemical reaction process,Plasma chemical reaction,High-angle annular dark-field (HAADF),Annular bright-field (ABF),Environmental protection,Energy transformation,Renewable energy
Molecular Spectroscopy

Molecular Spectroscopy

  • A.Harata(Prof.)
  • A.Yabushita(Assoc.Prof.)
  • T.Ishioka(Asst.Prof.)
In order to acquire the most advanced research data, development of new analytical methods is essential. In this laboratory, we aim to invent and innovate new measurement methods for studying the structure, reaction and function of molecules and to apply them to elucidate curious problems in molecular and material sciences. In particular, we have pioneered new spectroscopic measurement methods of molecules utilizing laser and synchrotron light, and widely applied them to analytical chemistry and physical chemistry, especially toward environmental, bio-, and astro-chemistry. development of measurement method,laser spectroscopy,synchrotron spectroscopy,photothermal,ultrasensitive separation analysis,environmental chemistry,astrochemistry,electrode,chemistry of nanoparticle,molecular recognition,single molecule detection ,interfacial molecular science,atmospheric chemistry,photochemical reaction,ionic liquid,amino acid,ice,sugar,polycyclic aromatic hydrocarbons,heterogeneous reaction
Structural Materials Science

Structural Materials Science

  • H.Nakashima(Prof.)
  • M.Mitsuhara(Assoc.Prof.)
In our laboratory, we conduct research focusing on "high-temperature strength and high-temperature deformation" of "metals and alloys". Strength and deformation of metals and alloys at high temperatures are very important characteristics for the energy related equipment such as engines in aircraft or automobile, turbines and boilers in thermal power generation plant, etc. These high-temperature devices are the core of the industry over the next several decades, and Japan is currently in the position to lead the research and development of high-temperature metallic materials. However, the fundamental physics related to the high temperature strength and deformation of the metal is a research field with many unexplained parts. Our laboratory conducts extensive research from the development of new high temperature metallic materials aiming at practical application to the clarification of the fundamental deformation mechanism of metals and alloys at high temperature. electron microscope,microstructure,CO2,Low Carbonization,Strengthening,steel,Cemented carbide,Nanotechnology,metallurgy,Material development
Surface Science

Surface Science

  • S.Mizuno(Prof.)
  • T.Nakagawa(Assoc.Prof.)
Downsizing functional devices has become increasingly important in the research of nanoscale materials on solid surfaces. Our laboratory aims to understand surface structures on an atomic scale in order to design and fabricate functional surface new materials and to characterize the properties of these materials. We are analyzing surface structures by low-energy electron diffraction (LEED), observing the changes in the surface structures by scanning tunneling microscopy (STM), and investigating the surface electron states by synchrotron radiation induced photoelectron spectroscopy. Low-energy electron diffraction,Scanning tunneling microscopy,Field ion microscopy,Field emission,Surface 2D materials,Photoelectron,Magnetic circular dichroism ,Magnetic ultrathin films,Surface structural analysis

Energy Chemical Eng.

  • S.Fukada(Prof.)
  • K.Katayama(Assoc.Prof.)
  • M.Oya(Asst.Prof.)
In our laboratory, we are working on the development of energy systems that support the future through chemical engineering approaches. Recently, we focus on researches on nuclear fusion reactor systems and hydrogen energy systems. From the viewpoints of "securing long-term resources", "stable supply" and "social acceptability", we consider nuclear fusion reactors as an important energy source for the future. We are developing an optimum system for efficiently producing and recovering hydrogen isotope as fuel and are studying on safety of nuclear fusion reactors. Specifically, we am trying to elucidate the mass transfer phenomena in special environments such as simultaneous irradiation field of hydrogen isotope plasma and neutron, and supercritical carbon dioxide atmosphere, and inside of flowing lithium-lead alloy. Under international collaboration, the fusion experimental reactor "ITER" is under construction in France and this research field requires many researchers. Hydrogen is attracting attention as a clean secondary energy with small environmental load. Research on SOFC and PEFC, research on hydrogen storage, research on high efficient hydrogen production system by utilizing nuclear reactor, etc. have been done so far. Recently, we have been developing high-efficiency hydrogen production method utilizing catalytic reaction and hydrogen permeation phenomena and investigating new hydrogen production method using plasma. Plant,Plant design,Plant engineer,Chemical engineer,Fusion power station,Fission power station,HTGR,Electric power,Radiation,Plasma decomposition,Simulation,Sun,Star on the ground,Clay mineral,Lithium,Methane,Carbon dioxide,Global warming,Tritiated water,Next generation energy

Advanced Space Propulsion

  • N.Yamamoto(Prof.)
  • T.Morita(Asst.Prof.)
We focused on advanced space propulsions, from palm sized miniature electric propulsions (Ion engine and Hall thruster) for small satellites to Laser fusion rockets for manned planetary explorer missions. We also investigate Laboratory Astrophysics, find a new finding missing in modeling astrophysical phenomena using ultra-intense lasers. In addition, the laser based diagnostics for understanding the physics inside these applications. Space propulsion,Electric propulsion,Plasma diagnostics,Plasma Application,Laser Application,Laser diagnostics,Plasma,Laboratory astrophysics experiments,Collision-less shock wave,Magnetic reconnection,microsatellite,Cavity ring-down spectroscopy,Plasma rocket,Miniature propulsion
Materials Science under Severe Conditions

Materials Science under Severe Conditions

  • K.Hashizume(Assoc.Prof.)
Study on hydrogen isotope behavior in materials under severe conditions such as nuclear fission and fusion reactors. Nuclear materials,Fusion materials ,Hydrogen Energy ,Hydrogen isotopes,Tritium,Radiation energy
Nuclear and Radiation Engineering Physics

Nuclear & Radiation Eng. Physics

  • Y.Watanabe(Prof.)
  • T.Kin(Assoc.Prof.)
We have been studying advanced applications of high-energy particles (e.g. neutrons, muons, and so on) in interdisciplinary fields between particle & nuclear physics and medicine & engineering. Examples of specific research subjects are as follows: (1) Application of nuclear physics to medical isotopes production and nuclear transmutation of long-lived fission products (LLFPs) in nuclear waste. Applications of radioisotopes (RIs) are widely used in both diagnosis and therapy in medicine. The status of these applications has recently been reaching to next stage, based on the development of innovative drug delivery system (DDS). We are developing a novel production method of various RIs which cannot be produced efficiently by conventional methods, by using “accelerator neutron”. In the sustainable use of nuclear energy, the management of radioactive waste from spent fuel has been one of the crucial issues. We are interested in reduction and resource recycling of LLFPs having a very long half-life (e.g., Zr-93) through accelerator-based “nuclear transmutation”. Toward the realization of future nuclear transmutation, we focus on proton- or deuteron-induced spallation reaction and are studying the reaction mechanism in both experimental and theoretical ways. (2) Studies related to cosmic-ray muons We are interested in a novel technique using cosmic-ray muons coming from space to the ground, which is called “muography”. The muography is a fluorography technique that can be applied to large scale objects such as volcano and pyramid. We are developing a new type of portable muography detector which is dedicated to exploit small scaled infrastructure buildings (incinerator, dam, plant, underground cavity, and so on) for operation and maintenance. In advanced information society, it becomes important to guarantee the reliability of the information systems supported by a huge number of semiconductor devices. We are addressing the problem of “soft errors” (a transient malfunction) in electronic devices subjected to terrestrial radiation environment including cosmic-ray muons. Based on nuclear and radiation physics, we are studying the physical mechanism by both experiment and simulation to establish a reliable prediction method of soft error rates. medical isotope production,advanced application of high-energy particle,application of radioisotope,example
Crystal Physics and Engineering

Crystal Physics & Eng.

  • M.Nishida(Prof.)
  • H.Akamine(Asst.Prof.)
Microstructure is strongly related to properties of materials. Novel functional materials have been developed based on microstructure-based engineering, where understanding of optimal design of microstructure and mechanism of microstructure formation such as phase transformations is important. For example, magnetic properties of permanent magnets that contributes to developments of different electric devices are related with grain size distribution of magnetic phase and dispersion state of non-magnetic phase, and phase transformation in heat-treatments plays a key role for optimizing microstructures. In our research, microstructure and its formation mechanism are extensively studied with the latest electron microscopes. Metal,Magnet,Microscope,Phase transformation,Magnetism,Titanium,Ferromagnetic materials,Ferroelectric materials,Martensitic transformation

Architectural History

  • Y.Hori(Prof.)
  • T.Kijima(Asst.Prof.)
The architect formulates a model of the architecture and the city of the future, which is a part of the history and the culture of the past and the present and creates a new human environment. The architecture is required to be stable, functional and beautiful and bears old and intimate relationships to our society and tradition. The architect also is required to synthesize aspects of all the human environment. Furthermore, we cannot practice the architecture without artistic talent (from HP of Department of Architecture in Kyushu University). We are following up that idea pursued by Department of Architecture in Kyushu University and the history of Architecture and Urbanization. As far as we can tell much about the history or the past from our written sources, and visits to historical buildings or ancient sites, together with the habit of collecting data for construction and recognising the overall spatial effect of buildings, eventually led to deeper investigations of architecture. It is necessary to make some assumption, which are as far as possible reasonable and logical, although the dangers of applying easy logic to buildings, as to any human activity, have to be redognised. We are working on the fields of Akoris in Egypt, and Pompeii, Herculaneum, Ostia Antica in Italy. And Hagi in Yamaguchi Pref. is also the field of our research. Ancient Rome,History of architecture

Healthy Building Environment

  • A.Ozaki(Prof.)
  • T.Yamamoto(Asst.Prof.)
We are theoretically analyzing natural or artificial phenomena of heat and mass transfer and airflow occurring in urban and architectural buildings, and examining the formation mechanism of complex urban and building environment. On the basis of these building physics analyses, we will do research on "dwelling environment" which is superior in comfort, health, energy saving and durability, and "advanced building functional design" which is utilizing renewable energy and high performance facility system. Simply stated, we are scientifically designing buildings that are comfortable to live (e.g. functioning of energy conservation, ecology, natural energy application, and zero energy buildings) by using computer science. Cities and architecture are products of artificial construction environment. This artificial environment consists of human system, building system and facility system. In accordance with the physiological and psychological demands of the human body, it is necessary to passively design environment elements such as heat, light and air related with the building system, and to actively control them by the facility system. We are aiming at superstructing a spatial system-ology, which can improve the living quality and convenience through minimal mechanical control, to integrate the environmental elements in and out of buildings and the facilities corresponding to the intended use of human living and buildings. We are also developing the guidelines on integrated design methods of living environment, architectural performance and building services. absorption and desorption,airtight,building thermal environment,building thermal performance,cross ventilation,dew condensation,evaporation,heat gain,heat insulation,heat load,heat shield,heat storage,humidity conditioning,hygrothermal,moisture damage,moisture proof,performance evaluation,solar heat,ventilation,ZEH
Urban Planning

Urban Planning

  • Z.Shichen(Prof.)
  • E.Minoura(Asst.Prof.)
Urban planning is a technique to plan and realize how safely, comfortably, and beautifully the urban space as a place of human life. Among urban planning studies, there is a field called urban analysis. In this laboratory, we are pursuing "reality" of city by reproducing or deciphering complicated urban phenomena by mathematical method while based on urban analysis. Research themes and subjects cover a wide range of urban fields. While pursuing empirical research with the theoretical foundation, we aim to train human resources with basic knowledge and skills related to the urban planning field, practical skills to solve urban issues and ability to adapt to different cultures. Asian City,Existing Houses Market,Image Analysis,Medical Facilities,Optimal Planning Method,Railway Station,Urban Analysis,Urban Planning,Urban Redevelopment,Urban Scape Painting
Public Space Planning

Public Space Planning

  • T.Sakai(Prof.)
How are the sustainable and compact cities developed? Actual projects are taken up based on architecture, city planning, urban design and landscape/townscape planning. The spatial design and evaluation are carried out at different scales from architecture as the unit of the urban space and for groups of buildings and open spaces. The keywords of design objectives are exchange, landscape/townscape, area management and community development. You will acquire specialized knowledge and technology through practice and by studying planning and design at our laboratory. Academic city,Chikushi,China,Hakata,Hakozaki,Index,Indonesia,Ito,Korea,Motooka,Open space,Proportion,Regeneration,Research park,Road,Science park,Tenjin,Transportation,Urban design center,Vacant house
Architectural Lighting Laboratory

Architectural Lighting Laboratory

  • Y.Koga(Assoc.Prof.)
Light is indispensable to human beings. Koga Laboratory is working on design, assessment and control of indoor and outdoor luminous environments in terms of environmental physics and human psychology and physiology through visual perception. Main research topics are solid-state lighting (SSL), daylighting and integrative lighting. In order to present an approach to designing luminous space for comfort and health, we are working on human visual responses to light with different spectral power distributions. Those responses are relevant to visual and non-visual effects of optical radiation. Conventional metrics of light are insufficient to quantify various visual responses and perception through retinal photosensitive cells (rods, cones and intrinsically photosensitive retinal ganglion cells). A key issue is making a model of human nonlinear visual responses. For the healthful building environment, we have launched research on the parametric design process for the building envelope and daylight openings. Past experience of long-term measurement of daylight and solar radiation and development of various daylight models has developed research on a façade system autonomously shading direct sunlight with daylight monitoring. In recent years, we have been working on automotive lighting as well. Issues are glare control for LED head and rear lights and improvement of indoor visual environment. Besides, we are involved in international standardization activities for indoor visual environment and lighting in buildings. Dr. Koga drafted ISO standards on the spatial distribution of daylight (ISO 15469/CIE S 011) and design process for the indoor visual environment (ISO 16817), and the International Lighting Vocabulary (CIE S 017). We have participated in research projects (tasks) on daylighting in the Solar Heating and Cooling Programme (SHC) of the International Energy Agency (IEA). A new task "Integrated Solutions for Daylight and Electric Lighting" will start in 2018. electric lighting,ergonomics,lighting design,OLED,sunlighting,vision,window
Sustainable Residential Planning

Sustainable Residential Planning

  • T.Shiga(Assoc.Prof.)
  • F.Shiwa(Asst.Prof.)
We focus attention on the relationship between human activities and space from the viewpoint of architectural planning studies, and work on researches on local Machizukuri and building planning, and are exploring better ways of planning. Our lab is divided into two teams, Machizukuri Study Team and Architectural Planning Study Team. The main research activities of Machizukuri Team are as follows: 1) Improvement of residential environment in high-density residential areas and slope residential areas; 2) Continual support activities for Machizukuri participated by local residents; 3) Research activities on living environment jointly with resident groups and administrative organizations. Architectural Planning Study Team conducts research on various building-type architecture, such as schools, libraries and housing complexes and so on. In recent years, research activities have focused on developing methods for creating neighborhoods in slope residential areas. Living conditions in residential areas of hillside areas have been deteriorating due to the decrease of population and the increase of vacant houses. Together with residents' management organizations in the residential area, we set up different methods of Machizukuri in different area on the basis of resident self-management. In practice, we conducted joint investigation and research activities with resident management organizations and shared the research results. We hope that the effectiveness and influence of Machizukuri activities can be expanded in residential areas. research activity,residential area of hillside area,influence of Machizukuri activity,main research activity of Machizukuri Team,resident ' management organization,different method of Machizukuri,human activity,Research activity,Continual support activity,way of planning,architectural planning study,library
Sustainable Building Energy Systems

Sustainable Building Energy Systems

  • D.Sumiyoshi(Assoc.Prof.)
Global warming is a common problem in the world, and we need to reduce the large amount of CO2 exhaust as soon as possible. And energy depletion is also one of important social issues. We need to find the solution before the point of no return. Energy consumption in buildings is about one third of all energy consumption. The achievement of energy conservation in buildings is one of the high-priority issues that should be accomplished by several decades. We are researching about the design method of optimal energy system with fuel cells in houses, the optimal operation method for the air-conditioning system in buildings, ideal energy system in cities using GIS, and so on. Behavior change method for energy conservation is also one of our interested research topic. behavior change method,city
Urban Design

Urban Design

  • T.Kurose(Assoc.Prof.)
Urban Design reconsiders Built Environment from the human point of view, beyond the boundaries of architecture, civil engineering and landscape specialized for quantitative satisfaction of Housing and urban infrastructure in the era of rapid population growth. We consider and redesign the relationship between "User" and "Environment" in urban space. In order to improve that relationship, we design urban space and research institutions, methods and processes to realize it. We carefully understand the topography and history accumulated in the urban space and keep looking at the reality occurring in the city to find the research subjects of urban design. Area management,Brownfield,City planning,Community,Community planning,Factory,Industrial heritage,Public realm,Public space,Region,Shrinking society,Soil Contamination,Urban design,Urban planning,Urban preservation,Urban regeneration,Urbanism,Vacant lot,Vacant property
Regional Regeneration Design

Regional Regeneration Design

  • N.Tsurusaki(Assoc.Prof.)
The single buildings, streets and open spaces, and the regional environment and urban space composed of such streets exist as physical environments and spaces surrounding our lives, and in that environment / space we We act diversely and act. Our laboratory have been paying attention to such environment / space design and behavior and behavior of people. Thus, we've researched on the elucidation of tangible and tangible intangible individuality / identity of cities and regions, characteristics of user's behavior, diversity of urban and regional spaces (plaza, open space, street, underground shopping area etc), user behavior analysis, revitalization of cities and areas in and outside of the country Through analyzes of case studies, I am researching the revitalization of cities and areas, the city design from now on, and the way of regional design. Universities and their campuses are important function on each city. So, we've been analyzing actual situation of collaboration between universities and cities, universities and their campuses, model of sustainable university campus and facilities, advanced university campus design approach and method. We are aiming to establish plan and design method of university campus based on these researches. Active Learning,Campus,Campus Design,Collaboration,Community,Design Guideline,Identity,Masterplan,Public Space,Re Design,Region,Region Regeneration,Space Analysis ,Universal Design,University,Urban,Urban Design,Urban Planning,Urban Problem,Urban Regeneration

Urban Environment Risk Systems

  • T.Kanno(Prof.)
  • M.Shigeto(Asst.Prof.)
Originally buildings have a role of shelter to protect us from the rages of nature. However, when the buildings are destroyed by an earthquake shaking, they become dangerous weapons to kill people. In order not to change the buildings into dangerous weapons, we have to not only build the buildings strongly against the earthquake shaking, but also understand the characteristics of the earthquake ground motions that are the enemy for the buildings. Because earthquake ground motions change greatly depending on the underground structures, it is important to grasp them to understand characteristics of the ground motions. Based on modeling of underground structures and computer simulation of earthquake ground motions, in our laboratory, we are trying to solve various problems concerning underground structures and earthquake ground motions, such as the elucidation of the cause of severe earthquake motions that have a major influence on the seismic safety of buildings. In such research, we think that it is very important to find out useful information for understanding characteristics of earthquake motions and underground structures from observed data. We not only use data observed by ourselves, but also observed data provided from the public seismic observation networks which have been dramatically expanded in recent years. In addition, we actually observe microtremors caused by various vibrations, such as traffic vibrations and ocean waves, in the study area, and use them for research. Deep subsurface structure,Earthquake damage,Earthquake engineering,Exploration geophysicists,Ground motion prediction equation,Microtremor array exploration,Sedimentary basin,Shallow subsurface structure,Strong ground motion,Strong ground motion evaluation,Strong ground motion observation,Strong ground motion prediction

Building Construction

  • T.Ninakawa(Prof.)
  • Y.Nanbu(Asst.Prof.)
We study mechanical characteristics and structural performance evaluation of Concrete Filled Steel Tubular Structures, Steel Structures, and Reinforced Concrete Structures. Moreover, we investigate safety evaluation preservation, and practical use of Traditional Wooden Structures and Brick Masonry Structure. Building Construction,Seismic Design
Construction Materials

Construction Materials

  • T.Koyama(Assoc.Prof.)
Laboratory of Building Materials: The building is made of materials, the beauty of the building is realized by the mastery of this building material, and people can be safely and comfortably protected in it. In order to continue this activity in harmony with the natural environment, it is indispensable to effectively utilize by-products generated in other industries, for example, concrete has sufficient capacity for the purpose. In addition, buildings undergo various deteriorating conditions in the natural environment, but long life of buildings is also important for achieving a sustainable society, we research durability of materials under various environments. Meanwhile, global warming is progressing steadily, and how to manage quality at the harsh construction site for both materials and workers is a future important issue, and we are also conducting research at the construction site level. other industry
Sustainable Building Structure

Sustainable Building Structure

  • K.Yamaguchi(Prof.)
At the Sustainable Building Structure Laboratory, we are addressing the study on the building structure which can accomplish reduction and reuse of building materials for "reduction of global environmental load." Extension of life-span by repair of architecture is included in reduction of building materials, so we are also researching on structural preservation of historical architecture, and characteristics of building construction and structure used according to an environmental condition. In our study, the target structural systems are various. They are brick masonry, timber structure, historical reinforced concrete structure, mixed construction of reinforced concrete and brick masonry, vibration control system for steel frame structure, and so forth. 3R,Bracing frame,FEM analysis,ICOMOS,Kumamoto earthquake,Microtremor,Non-engineered,Recycle,Seismic retrofit,SRB-DUP structure,Structural plywood,Wall panel
Sustainable Earthquake Resistant Structure

Sustainable Earthquake Resistant Structure

  • S.Matsuo(Assoc.Prof.)
After the Great Hanshin-Awaji Earthquake, the importance of continued use and early restoration of damaged buildings has been reconfirmed, and research subjects of building structure have been expanded to various fields. Our laboratory is mainly conducting research on connections of steel structure and concrete filled steel tubular (CFT) structure. Although it is natural to pursue mechanical rationality, superiority in construction efficiency, economic efficiency, sustainability etc. is also required at the same time. We are positioning the development of better connections that can satisfy such various conditions or the development of more rational design method of existing connections as the center of research theme. On the other hand, since various high-strength materials have been developed in recent years, higher strength tends to be required for members/connections. Therefore, we are also working on developing countermeasures based on the existing established joining technology (welding/high-strength bolts) and developing new technologies not limited to existing joining technologies. The members of our laboratory in this fiscal year are a total of 12 people, including 1 first year doctoral course student, 5 second year master’s course students, 3 first year master’s course students and 3 fourth year undergraduate students, and we are working on structural experiments and analysis every day. The attached photographs show the structural experiments conducted from the end of last year to the beginning of the year. second year master's student,first year master's student,research subject of building structure,connection of steel structure,Great hanshin-Awaji earthquake,final concrete placement,new technology,Hakozaki campus,group photo
Timber Structure

Timber Structure

  • T.Sato(Assoc.Prof.)
The laboratory works on the research about structures constructed by timber members. The timber, which has sustainability of stable supply, has been used for buildings since a long time ago, and the future demand is expected. However, the behavior of timber cannot be predicted precisely, because the timber has complex characteristic, which is anisotropy, nonlinearity, inhomogeneous material and so on. In order to improving the safety of timber structure, it is necessary to keep a continuous research. For the purpose of providing reliable space, We deal with basic research for timber and technological development of timber structure. Aseismic structure,Contact mechanics,Creep,Duration of loading,Glued laminated timber,Plywood,Post and beam construction,Rheology,Seismic control structure,shrine,Stress relaxation,temple,Traditional construction,Tribology,Wooden buildings

Molecular Physical Chemistry

  • Y.Iwai(Assoc.Prof.)
We are investigating the properties and phase equilibria for chemical engineering from the information of molecular level with the method of physical chemistry. The main targets of phase equilibria are the measurement and prediction of high pressure vapor-liquid equilibria and the solubilities of solutes in supercritical fluids. We produced functional materials such as functional cotton, metal + polymer complex, and titania film for dye sensitized solar cells by using supercritical fluids. We calculate the stability of gas hydrates and diffusion coefficients of hydrogen in hydrogen hydrate by molecular simulation. We study the mechanism of electro-hydrodynamic flow under applied high voltage in fluids. We also investigating the application of electro-hydrodynamic flow to the enhancement of extraction. main target of phase equilibria,diffusion coefficient of hydrogen,solubility of solute,property

Functional Materials

  • M.Kishida(Prof.)
  • T.YAMAMOTO(Assoc.Prof.)
  • H.Matsune(Asst.Prof.)
At this laboratory in the chemical engineering department, we study on the development of advanced inorganic/organic materials with new function and high function by controlling morphology and inner structure of nanoscale materials. For example, we successfully developed the function of nanoparticles and nanowires by coating them with silica layer of nanoscale thickness. The structure-controlled nanomaterials are useful for a variety of industrial applications such as supported catalysts for hydrogen production, electro-catalysts for polymer electrolyte fuel cell (PEFC), and electrically/thermally conductive materials.

Biochemical Eng. & Biotechnology

  • M.Kamihira(Prof.)
  • A.Ito(Assoc.Prof.)
  • Y.Kawabe(Asst.Prof.)
Biological systems have generated ingeniousness by evolving their processes from an individual level to combined levels (from gene to cell, and tissue/organ to organism). The aim of our laboratory's research is the development of new biotechnology by analyzing the complexity of biological systems and life phenomena, and by attempting to reconstruct these artificially. We are particularly interested in researches with respect to; 1) development of tissue engineering techniques; 2) biopharmaceuticals production using transgenic bioreactors; 3) proliferation and differentiation of stem cells; 4) development of gene transfer techniques; and 5) molecular biology of functional cells. biopharmaceutical production

Thermal Energy Systems

  • J.Fukai(Prof.)
  • S.Hironaka(Asst.Prof.)
We aim at securing necessary energy without excessive use of fossil fuels and preventing environmental destruction due to waste; in other words, our goal is utilizing energy effectively and conserving resources. Therefore, the development of technology for effective utilization of thermal energy and unused energy and the development of systems for energy conversion which can contribute to the reduction of CO2 emissions are studied. Moreover, the development of manufacturing processes of electric devices which save energy and resources is studied because conventional manufacturing processes consume large amounts of energy. large amount of energy

Environment System Eng.

  • T.Watanabe(Prof.)
  • M.Tanaka(Asst.Prof.)
Thermal plasmas have simply been used as a high temperature source. This indicates that thermal plasmas may have more capabilities in material processing, especially production of high-quality and high-performance materials, if thermal plasmas are utilized effectively as chemically reactive gases. Therefore we developed the numerical analysis to investigate non-equilibrium characteristics in thermal plasmas. These results can be utilized for the nano-material synthesis as well as waste treatment using thermal plasmas. (1) Thermal plasma synthesis method was developed to synthesize lithium metal oxide as well as many kinds of nanoparticles in a short time and with few impurities. (2) DC 100%-steam plasma characteristics were investigated for the application of halogenated hydrocarbon decomposition. The developed steam plasma system is a portable light-weight plasma generation system that does not require any gas supply. The system has high energy-efficiency since cooling water is not needed. (3) Ground-engineering work on experimental missions for lunar resource utilization has been conducted. The goal of the research program is to conceptually design an experiment system for unmanned water production on the Moon, and to define essential technological breakthroughs. Waste treatment,Plasma chemistry,Hazardous waste,Plasma processing,Hydrogen production,Water plasma,Syngas,Induction plasma,Recycle,DC arc,Nanoparticle,AC arc,Lithium ion battery,Plasma diagnostics,Lunar exploration,Visualization,Lunar soil,Modeling,Lunar resource utilization

Mass Transfer Eng.

  • T.Kajiwara(Prof.)
  • H.Mizumoto(Assoc.Prof.)
  • Y.Nakayama(Assoc.Prof.)
Polymer Processing: We have developed the computer simulation techniques for various kinds of processes encountered in the polymer processing. For example, the prediction techniques of materials behavior in twin screw extruders can evaluate the effects of screw configuration and other conditions on the mixing performance. Our goal is the establishment of process analysis system for the whole process from materials to final products. Nanomaterial Engineering: Nanomaterial is expected as functional material for next generation optoelectronics and bio industry. We have developed new method of preparing the nano composite material consisted from inorganic nano particle and organic polymer. Our purpose of this project is to develop transparent optoelectronics materials with nano periodic structures, photo luminescence patterned and printable electronics glass. Biochemical Engineering: The purpose of our project is to develop a culture system and a device for hybrid artificial organs or regenerative medicine using a scaffold with three-dimensional structure. We try to establish a differentiation culture system from stem cells into functional organ cells and to apply its technique to a device for hybrid artificial organs or regenerative medicine. transparent optoelectronic material,prediction technique of material behavior,effect of screw configuration,printable electronic glass

Process Systems Eng.

  • Y.Tsuge(Prof.)
  • G.Inoue(Assoc.Prof.)
  • N.Kimura(Asst.Prof.)
  • A.Fujihara(Res.Assoc.)
Our laboratory is developing computer-aided systems for supporting the design and operation of chemical processes in consideration with the environment and safety. Our main subjects are as follows. (1) Process design: multi-agent systems framework is introduced to a decision making problem with multi-object and multi-subject such as a trade-off problem between the energy cost and the equipment cost. (2) Operation management: Signed digraphs (SDG) are very useful to represent the cause-effect relationship in a chemical plant. The fault diagnosis system based on SDG has been developed in order to assist operator judgment and decision making when an abnormal situation happens in a chemical plant. Additionally, we have developed a system for estimating errors contained in measurements of sensors during normal operation. (3) Safety assessment: we have proposed a system for generating a route of fault propagation using the concept of SDG to support HAZOP study. operation management,multi-agent system framework,measurement of sensor,process design
Functional biomaterials

Biomaterials Eng.

  • H.Ijima(Prof.)
  • N.Shirakigawa(Asst.Prof.)
We are interested in functional biomaterials for practical bioprocesses. For example, functional biomaterials such as growth factor-immobilized biomaterial, hydrogel formation by using enzyme reaction and photo polymerization, culture substratum including cell adhesive sequence and immobilized enzyme have been developed. Furthermore, practical technology for regenerative medicine such as liver tissue engineering, organ model having blood vessel network, cell chip for the evaluation of cell functions, environmental purification technology, and green technology such as biodiesel production by immobilized enzyme have been developed by utilizing these functional biomaterials.

Bio-Nano Interface Eng.

  • Y.Miura(Prof.)
  • Y.Hoshino(Assoc.Prof.)
We are developing functional materials that mimic molecular recognition mechanisms in nature. A number of functional polymers (glycopolymers, dendrimers and plastic antibodies), that are capable of recognizing specific biomacromolecules, are being designed for protein adsorbent, biosensing and therapeutic application. In the meantime, we are trying to achieve deeper understanding of the macromolecular recognition mechanisms in nature. To accelerate innovation, we are always open for collaboration with industries. plastic antibody,industry

Applied Inorganic Chemistry

  • K.Hayashi(Prof.)
  • H.Akamatsu(Assoc.Prof.)
  • G.Hasegawa(Asst.Prof.)
Our goal is creation of ceramic-based new functional materials that contribute to the fields of energy & environment technologies and electronics by employing various synthetic techniques as well as the knowledge of solid-state physics and inorganic chemistry. Most of elements in the periodic table are in our interests. A variety of crystal (or amorphous) structures derived from the multiple combinations of elements, their interfaces, surfaces and microstructures are the origin of diverse functionalities. Mixed chemical bonding characters and defects involved in crystals are our particular interests. Outstanding performances and durabilities are fascinating properties for inorganic solids and ceramic materials. The engineering utilizing these properties are also kept in our research mind. C12A7,Electride,Energy storage,First-principles calculation,Flexible Polymer,Hydride,Ion conductor,Layered compound,Magnesium secondary batteries,Mayenite,Mesocrystal,Mesoporous,Mixed anion,MXene,Phenolic resin,Sodium ion battery,Tape casting film

Organic Functional Molecular Chemistry

  • H.Furuta(Prof.)
  • S.Shimizu(Assoc.Prof.)
  • M.Toganoh(Asst.Prof.)
  • M.Ishida(Asst.Prof.)
  • T.Miyazaki(Asst.Prof.)
We design and synthesize new molecular materials, and explore how their properties relate to their molecular structures. This molecular engineering enables us to develop the next generation of functional π-materials based on artificial molecular evolutions of natural tetrapyrrolic pigments, known as porphyrins. Through our original synthetic methodologies, namely, “N-confusion” approach, a various classes of functional porphyrin analogues have been developed toward the specific applications as, e.g., highly active and robust catalysts, high-performance opt-materials, agents for bio-sensing and photodynamic therapy (PDT) etc. Likewise, we are pursuing in the another research area on artificial functional phthalocyanine-based materials and BODIPY dyes as tools for material sciences. Catalyst,DFT,Isomer,Metal Complex,Near infrared,Non-linear optics,Oligo-pyrrole,Organic Synthesis,Phthalocyanine,Porphyrin,Redox Active,Singlet oxygen,Stable Radical,Tetrathiafulvalene,π-Conjugation
Functional Systems Chemistry

Functional Systems Chemistry

  • K.Tanaka(Prof.)
  • H.Matsuno(Assoc.Prof.)
With the recent development of highly-functionalized devices and materials in a wide variety of applications, every elemental piece of materials must be as small and/or thin as possible. Polymeric materials are, of course, involved in such a trend. When a material decreases in size, the ratio of surfaces and interfaces to the total volume for the material drastically increases. Since the surfaces and interfaces are in different energy states compared with the inside (bulk), the structures and physical properties at the surfaces and interfaces are supposed to be different from the corresponding bulk ones. Thus, if we are able to precisely understand and control the structure and physical properties of polymers at the surfaces and interfaces, the performance of the polymeric materials will be promisingly improved. Under this concept, we have been working on the development of experimental methodologies to obtain information about structure and physical properties at any time and space scales. Considering the information obtained from the view point of physical chemistry, we have been also trying to construct functional materials, including structural materials and organic devices. biochip,composites,DNA,film,gel,macromolecules,organic photovoltaics,plastics,polymerization,quantum beam,rubbers,soft materials,spectrometry,water treatment

Applied Analytical Chemistry

  • N.Kaji(Prof.)
  • S.Zaitsu(Assoc.Prof.)
In our laboratory, we are developing sensitive as well as selective analytical means for detection of environmental pollutants and for analysis of living cells and biological macromolecules. We are also creating non-linear optical technologies to realize lasers with ultimate spectral and temporal properties. In order to contribute to industrial communities, we are collaborating with a few companies through a venture company constructed in our laboratory. The goal of our laboratory is to improve people's activities by practical applications of our advanced analytical techniques. few company,non-linear optical technology,people's activity,industrial community,temporal property

Chemical Environment Eng.

  • K.Nakano(Assoc.Prof.)
  • R.Ishimatsu(Asst.Prof.)
Recent years now rank "The environment", "Nano", and "Bio" as the primary priority in scientific researches and also industrial activities. With the conceptual frameworks we have been studying about high-performance analysis methods, e.g., biomedical sensors based on surface plasmon resonance phenomena, magnetic-nanoparticle-based high-throughput flow analysis system for environmental monitoring, and so on. Moreover, there have been growing demands of minimization/downsizing of environmental loads associated with routine analysis, ultrahigh-sensitive analysis method capable of single-atom or single-molecule detection, and in-situ analysis methods that allow in-vivo operation. Currently we are endeavoring to achieve these developing technical challenges posed by doing researches on microfluidic- and chip-based analysis devices, single-molecule imaging using scanning probe microscopes, and fluorometric molecular probes that respond selectively toward small-molecule transmitters. industrial activity
Advanced Nanomaterials Chemistry

Advanced Nanomaterials Chemistry

  • T.FUJIGAYA(Prof.)
  • T.SHIRAKI(Assoc.Prof.)
  • N.TANAKA(Asst.Prof.)
The key material of our research is next-generation nanomaterials featured in the structure dimensionality, which is represented by carbon nanotubes. Our research targets expand from fundamental chemistries to application development. In particular, nanostructural analyses of the materials are carried out by using state-of-the-art instruments and novel analytical methods. Our findings through the approaches are leading to novel nanomaterial fabrication including energy materials, biomaterials, and advanced functional materials. Biomaterial,Energy material,Fuel cell,High-strength material,Hydrogen society,Nano-medical material,Nanocarbon,Nanomaterial,Nanotechnology,Near infrared light emission,Organic/inorganic hybrid,Supramolecular chemistry,Thermoelectric material

Bioengineering

  • M.Goto(Prof.)
  • N.Kamiya(Prof.)
  • F.Kubota(Asst.Prof.)
  • R.Wakabayashi(Asst.Prof.)
We study on four main topics: 1) Pharmaceutical engineering, 2) Interfacial engineering, 3) Enzyme Engineering, and Biomolecular engineering. Professor Goto focuses on the development of novel transdermal drug delivery systems and industrial application of molecular assembly. Professor Kamiya works on protein engineering and bioconversion using enzymes. The goal of our study is to create a novel material or an efficient molecular device using biomolecular functions. Aptamer,Biomaterial,Biotechnology,Cell culture,Cosmetics,DDS,DNA, RNA,Growth factor,Hydrogel,Insect biorefinery,Interface,iPS cell,Nanotech,Peptide,Protein,Rare Metal,Silkworm

Artificial Enzyme Chemistry

  • Y.Hisaeda(Prof.)
  • H.Shimakoshi(Prof.)
  • T.Ono(Asst.Prof.)
  • T.Koide(Asst.Prof.)
Our research projects concern with the synthesis, characterization, and electrochemical/photochemical properties of new materials composed of a diverse array of molecular components including vitamin B12, porphyrin derivatives, transition-metal complexes, and clusters for use in eco-friendly catalysis and for promoting functional innovation of molecular compounds with excellent abilities in recognition, sensing, and chromic properties. chromic property,electrochemical/photochemical property,research project concern,excellent ability

Green Chemistry

  • S.Ogo(Prof.)
  • T.Matsumoto(Assoc.Prof.)
  • T.Yatabe(Asst.Prof.)
In order to solve the most important problem in the 21st century -energy, resource and environmental problems-, biomimetics that extracts or applies the function principle of the life and surpasses bioscience, is required to create. We are researching the "Green Chemistry in Water", in which "bio-inspired catalysts" with excellent reaction selectivity and low environmental impacts are developed.

Chemistry for Molecular Systems

  • N.Kimizuka(Prof.)
  • T.Yamada(Assoc.Prof.)
  • N.Yanai(Assoc.Prof.)
  • M.Morikawa(Asst.Prof.)
My research group is broadly interested in self-assembling phenomena and involves identifying problems of fundamental significance in nanochemistry. Our approach involves the synthesis of materials that contain both molecular, biomolecular and inorganic components, and study of their structure and properties by a variety of physical techniques. In general, we use the tools of synthetic and physical organic chemistry to address problems at the interface of chemistry, biochemistry and materials science. material science,property

Functional Material Eng.

  • T.Ishihara(Prof.)
  • A.Takagaki(Assoc.Prof.)
  • A.Inoishi(Asst.Prof.)
New energy generation and storage devices are strongly requested at present. In this laboratory, inorganic functional materials which can be used for energy and environment are studied, in particular, materials for solid oxide fuel cells, advanced type Li rechargeable battery (dual carbon, Li-air, and hybrid capacitor), photocatalyst for hydrogen generation, steam reforming catalyst, and automotive exhaust catalyst. li-air

Applied Photochemistry

  • Y.Takahashi(Asst.Prof.)
The 21st century can be called the "century of light." Light functions as both energy (photon) and information (wave). Thus, the creation of novel materials as well as the development of method to control and converse light (photon) is powerful strategies for leading "Green Innovation". To realize these issues, we have been struggling to create innovative photofunctional materials such as unique solar cells by cooperatively organizing organic-inorganic compounds and metal nanoparticles, by mimicking the basic principle of photosynthesis. Also, we have been leading "Plasmonics" that is expected as a future photo-science and technology. powerful strategy
CARP

Biomedical & Biomaterial Chemistry

  • Y.Katayama(Prof.)
  • A.Kishimura(Assoc.Prof.)
  • T.Mori(Assoc.Prof.)
Our motto is "Chemistry for Medicine". We think flexibly to satisfy demands in medicine. We are trying to create a new concept in therapy and diagnosis. Drug delivery system,microbiome,nanomedicine

Organic Photo-electronics

  • C.Adachi(Prof.)
  • H.Nakanotani(Assoc.Prof.)
  • K.Goushi(Asst.Prof.)
With the commercialization of displays and lighting based on organic light-emitting diodes (OLEDs), the developing research field of organic optoelectronics has attracted a great amount of attention. This research lab is aiming to create the next generation of organic-based devices with the potential to shape the future of society by establishing the principles of molecular exciton engineering and developing new functional materials to allow the control of key properties and processes in organic devices such as molecular energy levels and exciton recombination. To accomplish these goals, we are pursuing a multidisciplinary approach with five major areas: computational quantum chemistry, organic synthesis, device design, process control, and optoelectronic device physics. Building off a base of OLED technologies, we are striving to develop new high-performance devices with high-added value such as organic transistors, organic solar cells, and organic semiconductor lasers. Other goals include fabricating nano-structured devices, controlling molecular orientation, and realizing bio-compatible electronics. base of OLED technology,key property

Electrochemistry for Materials Processing

  • H.Nakano(Prof.)
  • S.Oue(Asst.Prof.)
We have been studying on the electrochemistry for materials processing that is the base of the technology in the surface modification of the metal and the field of the electrolytic metallurgy. The electrodeposition of alloys and oxide composites from aqueous solution is especially performed. Because the deposited alloys form the supersaturated solid solution, nonequilibrium metallic compounds and amorphous alloys that cannot be produced pyrometallurgically, it is practically important for producing the materials and the functional conversion-coated films. The alloy deposition is also academically important due to appearance of phenomenon that cannot be explained by a usual electrochemistry theory. The investigation of deposition behavior of alloys and oxide composites and the analysis of micro structure and the characteristics of deposits are mainly performed to establish the electrochemical technique for the surface modification and the materials processing with an advanced theoretical rationality. anode,cathode,corrosion,corrosion resistance,current density,electrode potential,electrolysis,plating

Physical Chemistry of High-Temperature Melts

  • K.Nakashima(Prof.)
  • N.Saito(Assoc.Prof.)
Most of fundamental materials (metals, glasses and ceramics) fabricated thorough molten state. The processing of molten materials determines the quality of final products and its production cost. Our research group design the processing of the higher functional products with lower energy consumption from the view points of physical property for molten materials. In addition, we measured highly reliable data of physicochemical properties for molten metals and oxides(viscosity, density, surface tension, wettability etc.); these data should be important information for designing materials processes at elevated temperature. reliable data of physicochemical property
Crystal Plasticity and Fracture / Strong Solids Group

Crystal Plasticity & Fracture / Strong Solids Group

  • M.Tanaka(Assoc.Prof.)
  • T.Morikawa(Asst.Prof.)
B.C.C structured metals such as ferritic steels loose their ductility at low temperatures, resulting in brittle fracture. It is termed as ductile-to-brittle transition. In order to understand the mechanism behind the ductile-to-brittle transition, which is essential to obtain further reliability of structural metals, we perform fracture tests in a macroscopic point of view and 3D analysis of lattice defects by using leading-edge electron microscopy. Strength and ductility are compatible in dual-phase materials. We are also aiming to design function rich alloys in terms of understanding the fundamental mechanism behind plastic deformation of hard phase and matrix with a novel method to draw precise marker on the surface of the specimen. atom,crack,dislocation,ductile to brittle transition,EBSD,elongation,grain boundary,hardness,iron and steel,low temperature embrittlement,mechanical test,microstructure,precision marker method,rolling,SEM,TEM,tensile deformation,toughness,twin,yield

Computational Materials Science

  • O.Furukimi(Prof.)
  • Y.Kato(Assoc.Prof.)
  • S.Munetoh(Assoc.Prof.)
  • M.Aramaki(Asst.Prof.)
In our laboratory, novel materials were developed based on the computational science such as FEM (Finite Element Method), Ab initio and MD(Molecular Dynamics) calculation for safe and reliable society. 1) Microstructural analysis of ductile fracture behaviour based on the non-linear fracture mechanics and its application to high strength steel. 2) New silicon clathrate compounds as a high efficiency thermoelectric material without temperature gradient by controlling band gap. (accepted for energy-environment new technology leading program of NEDO project ). 3) Human body- and earth-friendly materials and devices: Hydrogen absorption materials, hydrogen detection device using ultrasound, and a new process for solar cells. hydrogen absorption material,Finite element method

Composite Material Processing

  • H.Miyahara(Prof.)
Solidification process condition affects to the microstructure development and the micro-scale phase selection, and eventually governs the functional and structural properties in the metal, semiconductor and composites materials. For example, the multi-crystal silicon are directionally solidified in order to array the crystal orientation and to increase the photo-electric potential transfer efficiency. The aluminum or magnesium cast alloys are uses for the parts in transportation vehicle, because the solidification process can produce the complicated shape at low cost. Furthermore, the microstructural quality of steel is determined during directional solidification process. Therefore, research about the solidification sequence is still essential to maintain the high quality of materials or to develop the new materials. In this laboratory, the solidification mechanism are analyzed in relation with the mechanical and functional properties in the metal (aluminum alloy, magnesium alloy for gravity casting and die-casting process, steel and cast iron), the semiconductor (multi-crystal silicon for solar battery) and the composites materials (alumina, silicon carbide reinforced aluminum alloy). composite material,functional property,structural property
3D-ET

Materials Characterization

  • K.Kaneko(Prof.)
  • R.Teranishi(Assoc.Prof.)
  • Y.Sato(Assoc.Prof.)
We are carrying out researches for developing innovative materials with newer and better properties to lead our forthcoming society richer. For example, we are aiming to develop stronger ferrous and nonferrous metals for constructions and automotive, superconducting materials for next-generation maglev train, medical imaging device for visualizing internal of human body with better resolution, and small energy harvesting materials for future wearable internet devices. In order to reach the goal, we have two major strategies. One is to understand the mechanism of materials exhibiting various physical properties such as hardness, electrical conductivity, electrical permittivity, and others. The clarified mechanism can be used for the design of new or better materials. In this research project, we are using state-of-the-art electron microscopy to characterize materials to thoroughly determine the material structure in two- or three dimension at nano scale or atomic scale. Another strategy is to develop new processes to fabricate functional thin films such as superconducting materials and thermoelectric power generation materials. We are aiming to prepare superconductors with desirable pinning centers at nano-scale and to join superconductors for fabricating longer superconducting wires for future electric power transportation system. The films of new electric power generation materials without temperature difference are also developing. Aluminum,Atom,Ceramics,Electrical device,Electron Microscopy,Energy,Information society,Internet society,Medical device,Nano- Microstructural analyses,Nanotechnology,Personal computer,Power generation,Power transportation system,Smartphone,State of the art,Steel,Superconductors,Thin film fabrication,X-ray diffraction

Structural Materials

  • T.Tsuchiyama(Prof.)
  • D.Akama(Asst.Prof.)
The roles of structural materials are keeping the shape and functions of structural objects such as buildings, railways, ships and cars, and defending our security during the use of them. To fulfill the roles, structural materials are required to enhance various kinds of mechanical properties: For example, car bodies need high strength as well as good ductility because they must have a sufficient collision safety to save the life of drivers and a good formability for designing complicated shape. Steel plates and bars for ships and buildings need high toughness to bear impact shocks or earthquakes. Flying objects such as air planes and rockets require light weight and tough properties. For medical apparatus, not only strength but also flexibility are desired. Such properties of structural materials are closely related with their metallic microstructure, and we can draw the performance potential of the materials by controlling their microstructure. We aim to fabricate new materials contributing to future technologies by controlling and analyzing the structure of metallic materials in micro- and nano-scale. And we hope to develop high strength steel sheets with excellent deformability, structural steel plates with high toughness even at cryogenic temperature, light and strong titanium alloys, high strength stainless steels with excellent corrosion resistance and oxidation resistance, human friendly metallic materials, and so on. biomaterial,Crystal,Ecology,Inorganic material,iron,Nano-technology,Space

Reaction Control & Processing for Materials

  • K.Kunitomo(Prof.)
  • K.Ohno(Assoc.Prof.)
  • T.Maeda(Asst.Prof.)
In our laboratory, we undertake basic research on the manufacturing processes of steel and carbon related materials, to use the limited resources and to save the energy on the earth, and also to secure the comfortable living environment. We perform two research fields related to the manufacturing processes currently; one is to achieve high efficiency and performance on various processes, and another one is to explore a new process for the future. It is necessary to analyze the basic phenomena in the material manufacturing process, the reaction, the flow, and the heat transfer, to achieve these research fields. Not only the experiments in the high temperature furnace but also the simulation analyses via workstation and PC clusters are carried out daily to tackle these research fields. carbon dioxide,coal,coke,recycling,slag,smelting
Energy Materials Engineering

Energy Materials Eng.

  • Y.Yamazaki(Prof.)
  • J.Hyodo(Asst.Prof.)
Dr. Yoshihiro Yamazaki's research focuses on the multiple length scale ion, electron and electronic-hole transport characterization in metal oxides, energy materials, aiming for efficient solar-fuel and energy conversions. One of the ultimate challenges in materials science is to activate a useful materials function for a specific application. In particular, the production of efficient solar fuel in conjunction with inorganic materials makes use of unlimited solar energy even at night. A challenge is to unravel critical material and architectural parameters, in a wide range from sub-nanometer to macroscopic scale, that activates such energy functions. We combine materials synthesis, thin-film fabrication techniques, electrochemical spectroscopy, mass-spectroscopy, thermogravimetry, in-situ high-temperature solid-state nuclear magnetic resonance (NMR), operando X-ray absorption spectroscopy (XAS), low-energy ion scattering (LEIS), in situ X-ray diffraction, scanning transmission electron microscopy (STEM), ab initio calculation, and machine learning, and correlate these fundamentals to energy functions in inorganic materials. The target materials include novel oxides for solar-driven thermochemical fuel production, photochemical water splitting, and proton ceramic fuel cells.

Geotechnical Eng.

  • N.Yasufuku(Prof.)
  • R.Ishikura(Assoc.Prof.)
Geotechnical engineering is one of studies for research on involvement in human being and soil or more specifically coexistence of people and earth in the general meaning. Geotechnical laboratory studies on not only soil mechanics for foundation of ground but also geotechnical disaster prevention (Earthquake, heavy rain and flood) and geo-environmental engineering (utilization of industrial by-product ). The following research projects are carrying on: "Geo-Medical Plant Engineering Science" through application of Medical Plant Licorice at Semi-arid Area with approach toward development of ground Improvement technology for greening Climate change adaption technology on geotechnical disaster in Kyushu and Okinawa Geo-environmental improvement techniques using various local resources for sustainable development Disaster prevention,Earth reinforcement,embankment,Ground improvement,Liquefaction,Rainfall,slag,Soft soil,suction

Structure Analysis

  • Y.Sonoda(Prof.)
  • M.Asai(Assoc.Prof.)
  • H.Tamai(Asst.Prof.)
In order to provide safe and comfortable infra-structures, a performance evaluation against impact (high speed) loadings and a deterioration diagnosis of existing concrete structures has been developing in our laboratory. Several kinds of computer simulation based on the solid mechanics and structural engineering has been utilized to perform our research. In the fundamental research of a performance evaluation against impact loading, new simulators, including particle simulation, incorporated with damage mechanics and fluid mechanics has been developed. The goal is to design the Rock-Shed, derailment barrier of bullet train (Shinkansen) and flood-tide barrier. In addition, for the research of a deterioration diagnosis, a new hybrid nondestructive testing with hammering and infrared thermography is developing to expand the applicability and to increase the accuracy of the diagnosis of existing structures with various damage level. Several kind of computer simulation,rock-Shed

Earthquake Eng.

  • T.Mazda(Prof.)
  • Y.Kajita(Assoc.Prof.)
We aim at improving the safety of the civil structures against severe earthquakes as well as protecting the lives and property of the citizen who utilize the civil structures. To achieve the goal, we have to develop the structures which have superior seismic performance. Our laboratory conducts the several researches such as establishing the evaluation of the strength of the structural members, figuring out the seismic performance of the structures, investigating the effectiveness of the technique of earthquake resistance, base isolation and structural control, and so on. Moreover, we research the damage risk of the existing structures due to the severe earthquakes. Taking advantage of the accomplishments, we aim at raising public awareness of disaster prevention issues. Disaster mitigation,Disaster prevention,Earthquake,Earthquake engineering,Earthquake resistance,Great Earthquake,Ground Subsidence,Highway bridge,Liquefaction,Seismic isolation,Vibration Control

Structural Design

  • S.Kainuma(Assoc.Prof.)
We are focusing on the aging problem of steel structures in various scales, and our research activities covered the maintenance management and high durability design of steel structures. We are challenging a new research mode, expanding our research to a broader range of perspectives according to the lab tests and field tests, the methodology across multiple academic disciplines associated with chemistry, electrochemistry, material science, space statistic method, mechanics, and so on. We have tried to elucidate the deterioration mechanism of steel structures through phenomena in the fundamental researches, and proposed methods to predict the progress of deterioration and the fatal damage. Besides, based on the research findings, we are working on the development of new technologies, such as damage prediction sensor, aging deterioration simulation, corrosion monitoring, damage resuscitation, durability enhancement, etc. Also, we are working on the implementation research that applies the developed technology in practices. Many collaboration projects accomplished together with other research institutes and companies in various fields. As a result, we made achievements on cultivating highly professional personnel who specialize in chemistry, electrochemistry, material science, and so on. Students in our laboratory are challenging the academically and technically difficult research in collaboration with joint research institutes in different fields sedulously. Now and future, we are devoting and will always using the comprehensive strength to help people grow into excellent researchers and engineers. structure system group,structure system,center,research activity,Groundscape group,two study group,Glandscape system,various activity,research side,short-term problem,nature environment,social environment,mid/long-term problem,existing structure,method of citizen participation,civil engineering heritage,city planning,practice use,structural material,Hino,Kainuma,infrastructure,addition,Takao,stare,safety,face,Higuchi,Yamaguchi,harmony,example,bridge,preservation

Concrete Eng.

  • H.Hamada(Prof.)
  • Y.Sagawa(Assoc.Prof.)
Subject of our laboratory is concrete, which is the most used construction material in the world for infrastructures, and is essential to our life and economic activities. The purposes of research and education are to construct the concrete structures with performances for carrying load and durability, and to extend the lifetime of existing structures. Also, in the future, concrete structures will be required to harmonize with environment. Important topics in this laboratory are estimation of durability of materials such as chloride diffusion and recycling system. In addition, we are working on diagnosis and repair of concrete structures in order to extend the lifetime of structures. Long lifetime, high durability and recycling can contribute toward sustainable society. purpose of research,economic activity
Geo-Disaster Prevention

Geo-Disaster Prevention

  • H.Hazarika(Prof.)
  • G.Chen(Prof.)
  • K.Kasama(Assoc.Prof.)
  • Z.Furukawa(Asst.Prof.)
Japan and Asia are the areas where natural disasters occur very often, and very serious damage and life lost are caused by these disasters every year. The objects of this laboratory are to create a strong society against natural disasters and make people have a happy life without worry about the disasters by developing the following techniques: (a) analysis of large deformation and dynamic problems; (b) risk analysis and management for natural disasters; (c) techniques related to laboratory tests and field investigation in order to understand disaster mechanism, predict and make effective preventive countermeasures for various natural disasters breakwater,civil engineering,clay,Climate change,earthquake,geotechnical engineering,ground,Ground improvement,groundwater,hazard map,heavy rain,landslide,liquefaction,Recycled material,sediment,soil,tsunami

Transportation System Eng.

  • Y.Oeda(Assoc.Prof.)
  • C.Matsunaga(Asst.Prof.)
Transportation infrastructure and Transportation system supply our mobility which is one of essential activities for our life. They are also tools of urban planning and fundamental technologies which decide the shape of city. It is really diverse what we ask for such Transportation infrastructure and Transportation system: economic rationality, accommodation to environment, and so on. Therefore, at present and future, as environment and resource are limited and society is changed, it must be necessary to reform their performances. At our laboratory, we study about the demand prediction of public transport, the human behavioral science on transportation, transportation system and transport facilities planning, and so on to realize the transportation system which balances sustainable city and wealth of urban life. such transportation infrastructure,transport facility planning,essential activity,fundamental technology
Field survey at estuary

Environmental Fluid Mechanics

  • S.Yano(Prof.)
  • A.Tai(Assoc.Prof.)
We have been attempting a number of researches on aquatic environmental problems in natural water area, such as sea (coastal area, estuary, coast, tidal flat), river (watershed area, upper reach to river mouth), and lake in order to aim finding the solution by approaches from a perspective of fluid mechanics. In addition, we work positively to promote interdisciplinary studies with a wide range of research areas, such as biology, ecological engineering, analytical chemistry, etc. Recently, we have started to try new research topics on the adaptation to natural disasters due to climate change and the development of sustainable social systems with due considerations to biodiversity. These studies are conducted using on-site surveys, numerical simulations using computers, and experiments using models. Adaptation,Aquatic environment,Ariake Sea,Civil engineering,Climate change,dam,Drift wood,drone,Environmental hydraulics,Heavy rain disaster,Hydraulics,Isahaya Bay,mercury,Numerical simulation,tide,Yatsushiro Sea

Urban & Environmental Eng.

  • T.Kuba(Prof.)
It is necessary to preserve the entire aquatic environment because it is composed of various factors, such as the water quality and quantity, aquatic creatures, bottom sediments, waterfronts, landscapes, and so on. For this purpose, an approach of integrated watershed management should be constructed, that entirely covers the water environment and water circulation. In addition, the role of regional water facilities, such as sewage treatment facilities, grows even more important for the aquatic environment conservation and the restoration, and in some cases direct water purification for aquatic environment should be necessary. In the Urban and Environmental Engineering Laboratory, we are working on the integrated preservation of the aquatic environment using various technologies and system approaches, such as direct environmental purification, integrated watershed management, and wastewater treatment. regional water facility,sewage treatment facility,various technology

Watershed Management

  • Y.Shimatani(Prof.)
  • H.Hayashi(Asst.Prof.)
One of the most important themes in our laboratory is considering a relationship between the human activity and natural ecosystem in watershed. We conduct a research in order to construct a good social structure relates to issues of water environment. Watershed Management research consists of many academic fields, such as natural science, engineering and agriculture. Our study approach is based on engineering, however we also aim to establish a new academic field which integrates the various disciplines. Thus, we conduct many kinds of research including ecological engineering, sedimentation hydraulics, public consensus building, landscape and flood disaster. Therefore, students are able to interact with citizens and to conduct collaborative research with researchers who majors different discipline. Micro hydro power,Green infrastructure,Eco-DRR,River Environment,Flood disaster,Storm water management,Nature friendly river works,many kind of research,issue of water environment

Environmental Systems Analysis & Control Eng.

  • T.Shimaoka(Prof.)
  • H.Nakayama(Assoc.Prof.)
  • T.Komiya(Asst.Prof.)
In order to contribute to the transition to sustainable society from the aspect of urban environmental engineering, safe and appropriate treatment and disposal technologies of wastes, their feasibility assessment, interrelationship between mass flow of recycled wastes and socio-economic system, and social system design to support reasonable waste applications have been investigated in close cooperation with governmental and industrial sections. In the last decade, severe environmental problems owing to rapid economic growth in Asian regions also cause adverse impact on Japanese environment. Therefore, appropriate and reasonable technologies of waste treatment, disposal, and recycles, their feasibility assessment, environmental impact and risk assessment of current local waste management, and system design of reasonable waste management has been investigated based on Asian regional characteristics and conditions. disposal technology of waste,reasonable technology of waste treatment

Hydro-Environmental Eng.

  • Y.Hiroshiro(Assoc.Prof.)
  • K.Nishiyama(Asst.Prof.)
From a standpoint of sound hydrologic cycle, our laboratory deals with the essential researches for our living and environment. Mechanism of hydrologic cycle systems, like regional meteorological phenomenon, surface water and groundwater are affected by advancing of rapid and unplanned urbanization. Consequently, it will cause the change of water environments and ecosystems. How we can conserve a regional hydrologic cycle and water environment which has good nature from anthropogenic impacts, this is major problem for region as well as utilization of water. In order to solve the problems, our laboratory works on field of groundwater environmental systems (groundwater recharge, groundwater flow, groundwater pollution & quality, interaction between groundwater and sea). Moreover, our research room also conducts meteorological engineering-based study (climate change, heavy rainfall, cloud seeding) relating to water resources and water disasters. mechanism of hydrologic cycle system
Ecological Engineering

Ecological Eng.

  • S.Seino(Assoc.Prof.)
Coastal and riverine environmental conservation. Ecological engineering. Consensus building. Endangered species habitat protection and restoration. Community-based management. Environmental planning and policy. Local knowledge, Traditional Ecological Knowledge. MPA(Marine Protected Area). Biodiversity,Citizen participation,Coastal zone,Dam management,Environmental assessment,Environmental conservation,Fishery resources,Fishery village,Habitat,International network,Legal scheme,Local community,Mountainous community,Nature restoration,Seacoast,Sediment,Sustainability,Watershed
Environmental Planning and Design

Environmental Planning & Design

  • A.Higuchi(Assoc.Prof.)
Japan is now experiencing a drastic change of paradigm. "Development" is no longer the first priority of our society. Civil engineers and designers are expected to suggest some alternative approaches to keep a balance between the necessary improvement of infrastructure and the precious natural/cultural environment. However, despite of these major transitions, there is little knowledge in philosophy, technology and methodology that are fundamental for conserving and reproducing the beautiful yet vulnerable landscape of Japan. The mission of the Environmental Planning and Design Laboratory at Kyushu University is to study how to bring a harmony between civil engineering structures and nature, find a design to reconcile with the local culture, make the citizen's opinions workable in social infrastructure, and find necessary regulations and rules to protect mountains and countries from excessive development in order to preserve, enhance, restore and create the beautiful landscape of ours. country

Urban Eng. & Economics

  • S.Managi(Prof.)
Our research has focused on diverse areas of urban, resource and environmental engineering and policy, including examinations of: policy instrument choice; competitiveness effects of regulation; diffusion of urban, energy and environmental technologies. Sub-major includes urban, energy and environmental engineering focusing on urbanization and future transportation and energy system. Economics,Environmental and resource economics,Transportation engineering,Urban engineering,Urban planning

Environmental Geotechnology

  • Y.Mitani(Prof.)
  • H.Taniguchi(Asst.Prof.)
This laboratory, aims at the establishment of the system of a new ground sphere environmental system for the creation of a better environment, an ideal way of the ideal way of development use of the geosphere and development of construction technologies that furthermore evaluate the influence that these exert on natural environment and the social climate overall, and harmonize with the environment is researched. Moreover, Geographical Information System (GIS) that is the latest information technology is deeply used, and an integrated technology that uses information is developed. Therefore, not only domestic various places but also the area of investigation can be very wide. Problem treated up to now: water engineering, planning, agriculture, in addition, to the technology of the ground and the rock mass engineering. Researches regarding agriculture, ecology, etc are also carried out while cooperating with local government, but also internationally. CO2 storage,Disaster Prevention,Geo-Environmental technology,Geo-Spatial Information,Geographic Information System (GIS),Green Infrastructure,Landslide,Risk Management,Road Maintenance,Rock Engineering,Satellite Data,Sedimentation,Slope Failure,Slope Stability,Tunnel
Land Use Policy and Disaster Risk Reduction Lab.

Land Use Policy & Disaster Risk Reduction

  • K.Tsukahara(Prof.)
  • N.Kachi(Asst.Prof.)
Due to depopulation, intensifying natural hazard by climate change, and fragile financial condition of public sector, Japan is facing difficulties in managing infrastructures and national land. To find feasible and sustainable ways to cope with these difficulties, we are conducting researches on 1) disaster resilient and sustainable land use management, 2) financially sustainable infrastructure management, and 3) ways of utilizing Japan’s experience and knowledge to emerging countries. As for disaster management, extreme hazards such as the East Japan Earthquake and several intensified rain falls revealed certain limitations of disaster countermeasures only depend on hardware. Therefore, we need to find a “best mix” of hardware and software such as land use management and evaluation systems. In urban area management, Japan has experienced consistent expansion of urban areas and population in the past 100 years. This expansion period ended, and now a new period of shrinking urban areas and population has come. We need to find a new urban land use and infrastructure management system to come with such shrinking period. Japan has accumulated experience and knowledge of urban and infrastructure management on expanding urban areas and population. Utilizing such experience and knowledge to emerging countries urban management is also our scope of research. Disaster Resilient Land and Infrastructure Management,International Cooperation for Infrastructure Management,Urban and Regional Planning

Coastal & Ocean Eng.

  • N.Hashimoto(Prof.)
  • M.Yamashiro(Assoc.Prof.)
At the coastal area which is the boundary between the land and the sea, in addition to the existence of abundant biological resources, various human activities such as habitations, port works, recreations and fisheries are conducted. At the same time, the costal region is often exposed to threats of the natural disasters such as tsunamis, storm surges, and beach erosions. Therefore, it is a big problem above all to protect the lives and the properties from such natural disasters. In the coastal and ocean engineering laboratory, the basic technologies for human benefit are studied through pursuing the action principle of nature such as the coastal waves incoming from the ocean. Recently, we focus on studying the sea surface wind that generates waves. We also focus on meteorology so as to assess the influence of global warming to the coastal area. Beach,Breakwater,Coastal Dikes,Coastal Disaster,High Waves,Rip Current,Sea Level Rise,Seawall,Typhoon
Planning of Marine Systems

Planning of Marine Systems

  • H.Kajiwara(Prof.)
  • H.Kimura(Assoc.Prof.)
The laboratory aims to establish systems planning methodologies based on feasibility studies of a wide variety of plans proposed in marine systems engineering field. As its approach, based on system theory and optimization, we are studying planning and work support systems making use of artificial intelligence technology, information technology (IT) and robotics. Since ships are made to order, there is no manufacturing process that mass-produces like automobiles, so there is a problem that robotization of the assembly process is difficult. So we are seeking work support and automation with latest IT and robot technology. As for the design work, although the introduction of 3D-CAD has progressed and the work efficiency has greatly improved, but the work itself depends largely on the skill and experience of experienced technicians. We formulate these design problems as optimization problems, and understand design work by veteran engineers from the viewpoint of optimization theory. And we are working on automating design support and design work combining optimization method and artificial intelligence. Furthermore, we are studying a robot system suitable for doing work at the seabed in preparation for the time when Japan will utilize submarine mineral resources sleeping in exclusive economic zones in the future. Artificial Intelligence,Automatic Design,Combinational optimization,Information Technology,Piping arrangement,Reinforcement learning,Robotics,Scheduling
Model Ship Test in High Speed Circulating Water Channel

Marine Hydrodynamics

  • J.Ando(Prof.)
  • T.Kanemaru(Assoc.Prof.)
  • A.Yoshitake(Asst.Prof.)
To decide from a hydrodynamic perspective the optimum form for high technology ships, high speed ships and very large floating structures that will appear in the near future, and to establish hydrodynamic performance predictions and evaluation methods, we must analyze them using specific hydrodynamics for individual targets as well as general hydrodynamics. For example, we need ship hydrodynamics to estimate the resistance and propulsive forces on a ship. We also need the mechanics of multi-phase flow to deal with cavitation on the propulsor. In addition, Computational Fluid Dynamics (CFD) that analyzes various hydrodynamic phenomena numerically is used widely due to the development of the computer. In this laboratory, we study flow around ships and floating structures based on these various hydrodynamics by theoretical calculation using personal computers, and model test in a high speed circulating water channel. Boat,Contra Rotating Propeller,Ducted Propeller,Energy Saving,Energy Saving Device,Genetic Algorithm,Multi-objective Optimization,Panel Method,Pre-swirl fin,Pressure Fluctuation,Real-coded Genetic Algorithm,Rudder,SQCM
Marine Dynamics and Control

Marine Dynamics & Control

  • Y.Furukawa(Prof.)
  • H.Ibaragi(Asst.Prof.)
It is well known that ship manoeuvrability changes considerably with hull forms, and the manoeuvring characteristics are different depending on loading conditions or environmental conditions. Furthermore, ships sailing at sea are under the influence of external disturbances such as wind, wave and current. Understanding the dynamic characteristics of ships is very important for safe navigation or operation at sea. Predicting the motion of a ship based on numerical simulation is one of the effective methods for evaluating the performance of ships in various conditions. It is required to evaluate the hydrodynamic forces such as the lateral force and yawing moment acting on ship's hull with high accuracy, because they have a great influence on manoeuvring performance. Our laboratory mainly covers the dynamics and control of ships and floating bodies. We are doing research on the prediction method of ship manoeuvring motion both experimentally and theoretically and developing a calculation code for the prediction of hydrodynamic forces acting on a floating body. Furthermore, the development of navigation support systems or automatically navigated ships will be achieved by investigating the dynamic characteristics of ships in detail. dynamic characteristic of ship,ship sailing,understanding
Full ship-structural model for numerical analysis

Structural Systems Eng.

  • T.Yoshikawa(Prof.)
Ships and offshore structures undergo dynamic loads from wave and cargo, and oscillating forces induced by engine and propulsion systems as well as static loads. To assure the safety of ships and offshore structures, the static and dynamic behavior of the structures under such various loads must be clarified. In the Structural Systems Engineering Laboratory, the comprehensive researches relevant to structural strength and crashworthiness of ships and offshore structures, light-weight structures applying composite materials and fluid-structure interaction problems are performed. Numerical and experimental techniques and tools for these problems are investigated and developed in the laboratory. structural safety,new structure,marine structure,structural member,such various loading,vibration,future,addition,habitability
Fatigue, Fracture, Welding Mechanics and Production Systems

Fatigue, Fracture, Welding Mechanics & Production Systems

  • K.Gotoh(Prof.)
Our laboratory contributes to the structural integrity and construction method of ships, offshore structures, bridges, steel structures, pipelines, construction machinery and automobiles from the following viewpoints. 1) Construction and fabrication technology, especially joining and welding. 2) Evaluation of fatigue and fracture from the viewpoint of material strengths based on the continuum mechanics. design method,fracture mechanic,fracture occurrence,production process,large structure,integrity of structure,case of structure,new structure,various structure,concept of fracture Control Design,combination of fracture Control Design,unstable fracture occurrence,Analysis,assessment,strength of material,production system,production line,entire process of fatigue crack nucleation,evaluation of material deterioration,maintenance inspection,maintenance check,methodology of Design,design stage,research area,evaluation,analytical prediction,service,case,large-scale rationalization,service condition,reliability analysis,correspond,plan,life,development,elasticity,Education,will,propagation,limit,processing,account,plasticity,resistance

Ship Design & Maritime Intelligence Technology

  • S.Yamaguchi(Assoc.Prof.)
Study on the ocean environment of a navigation area is essential for ship design. On the other hand, the investigation of current, wave and wind of the ocean is not sufficient for the purpose and development of maritime intelligence technology is needed. In our laboratory, ocean measurement technology using underwater vehicle is developed. The obtained data is used as basic information for ship design and it also applied for sea bottom resources exploration and ocean observation. Seakeeping problems of ocean going vessels which include small high-speed boat and special service vessels are studied based on the maritime intelligence. Underwater robot,Jack-up vessel
Experimental Setup for Human Walking on Slat Type Surface Plate and Change of Sole Pressure Distribution

Functional Systems Eng.

  • T.Shinoda(Prof.)
  • T.Tanaka(Assoc.Prof.)
Our educational subjects and research objectives can be described in terms of the three key areas of improved safety in maritime affairs, preservation of marine environment, value improvement of marine transportation, design for ship equipment and ship production engineering. Container terminal,Energy saving technology,Evaluation and decision making,Filtration technology,Human factor,Marine environment,Marine Safety,Marine transportation,Occupational safety,Production engineering,Risk Assessment,Work efficiency
Floating Offshore wind Turbine

Ocean Energy Resources

  • T.Utsunomiya(Prof.)
Japan is a country with limited energy resources; however, in the waters around Japan, we have a variety of ocean energy resources. In particular, the potential of offshore wind energy is enormous, and also the development of new energy resources such as methane hydrate is their infancy. For Japan who relies on foreign countries for the majority of energy resources, to proceed with the development of these ocean energy resources is very important, not only in order to contribute to the improvement of Japan's energy self-sufficiency, but also to fulfil the entry into the ocean development markets of the world. Therefore, we shall work on the following two themes: foreign country

Structural Dynamics

  • Y.Yasuzawa(Prof.)
This laboratory is established in this department on Oct. 2018 supported by Kawasaki Heavy Industries, Ltd., Japan Marine United Cooperation, and Mitsui E&S Shipbuilding Co., Ltd. to develop core human resources in the field of shipbuilding and ocean engineering. One of the target of the activity is to develop human resources who are responsible at high level for the demand in industries in addition to the conventional knowledge and skills on marine and ocean engineering. This course plans and manages meetings, seminars, exchange, and lectures between academia and the industries as well as research cooperation. The field of education of this laboratory is related to 'Strength of material,' 'Vibration of Ship Structures,''Continuum Mechanics,' and 'Structural Engineering of Marine Structures.' The faculty staffs are responsible for the lectures and supervising students for graduate, master thesis, and doctoral research. Research activities are on vibration in ship structures, hydro-elasticity of floating structures, ocean renewable energy utilization, and strength of risers and cables. (1)Structural Vibration of Ship and Fluid-Structure Interaction Large exciting forces as propeller induced force and unbalanced forces from engines are generated in ships. Ship structures are excited by the forces. Furthermore the structural members are in contact with inner or outer liquid like water, cargo oil, and seawater. Vibration may induce metal fatigue damage as well as bad human environment for clues and passengers. It is important for designers to estimate and suppress such vibration. Vibration of superstructures and tank structures have been studied in the laboratory. (2)R&D of Wave Energy Converter Station Recently ocean renewable energy (ORE) are gathering attention for prevention from global warming and reduction of nuclear power plant use. Wave energy utilization is one of the OREs. Mechanical energy of the waves are to be converted to electric energy by some converting mechanism. A floating power station with multiple OWC (Oscillating Water Column) devices called 'MC-OWC' has been studied recently for development and design. (3)Hydroelasticity and structural design of VLFS Ocean space utilization using very large floating structures (VLFSs) in the ocean is one of our dreams. Large floating city and floating airport are proposed, and feasibility study were studied to realize them. 'Mega-float' project was an example. It is said VLFSs have an advantage in the environmental aspect, earthquake resistance, and cost effectiveness. Design and estimation of dynamic structural response resulting from the large scale and hydro-elastic characteristics are have been studied. flexible riser,fluid structure interaction,Megafloat,Oscillating water column,ship vibration,Ship-CORE,tank vibration,wave energy,WEC

Economic Geology

  • K.Watanabe(Prof.)
  • A.Imai(Prof.)
  • K.Yonezu(Assoc.Prof.)
Our research area expands to not only Japan also around the world, especially Asia and Africa. We aim to explore mineral and hydrocarbon resources there in collaboration with local university or research institute. Our recent research topics include (1) establishment of geo-resource database of ore deposits based on understanding of genesis and mineralization age of mineral deposits associated with island arc magmatism (e.g., epithermal gold and porphyry copper deposits), (2) monitoring and prediction of volcanic eruption by analyses of ejecta, (3) experimental study on hydrothermal geochemistry such as adsorption and precipitation behavior of materials dissolved in aqueous thermal solution and its application to recycling of rare and precious metals. Analytical techniques and instruments applied in laboratory include; X-ray diffractometer and scanning electron microscope for identification and observation of rock samples, electron probe microanalyzer for determination of chemical composition in microscopic scale, X-ray fluorescence spectrometer for determination of whole-rock chemical composition, heating/freezing stage for fluid inclusion microthermometry, FTIR for determination of water contents in volcanic glass, atomic absorption, ICP-AES and ICP-MS for determination of dissolved components in aqueous solutions, fission track, K-Ar and Ar-Ar methods for age dating, X-ray photoelectron spectroscopy, X-ray absorption spectroscopy and nuclear magnetic resonance for determination of the chemical state or coordination structure. analyse of ejecta

Exploration Geophysics

  • T.Tsuji(Prof.)
  • H.Mizunaga(Assoc.Prof.)
  • T.Tanaka(Asst.Prof.)
Geophysical exploration is a scientific technology to visualize subsurface structure using a variety of sensors instead of our eyes. This technique has been used to find energy and mineral resources. In order to develop the mineral resources safely and efficiently, we have to examine the location and extent of subsurface resources in detail. The Exploration Geophysics Laboratory is in charge of the education and research on geophysical exploration to visualize the subsurface for mineral exploration and etc.

Geothermics

  • Y.Fujimitsu(Prof.)
  • J.Nishijima(Assoc.Prof.)
  • T.Wakeyama(Assoc.Prof.)
  • M.Matsumoto(Asst.Prof.)
Geothermal energy, which is eco-friendly and completely domestic natural energy, takes the various forms from the high temperature volcanic thermal energy at the deeper part of the underground to the normal temperature geo-heat energy at the shallower part. We comprehend the geothermal energy as a system (the geothermal system) that consists of heat source, fluid and underground structure. And we conduct the theoretical and applied researches and educations for exploration, development and utilization of the ecological and sustainable geothermal energy. The researches contribute not only to the promotion of natural energy utilization and the solution of environmental problems but also to the disaster prevention such as the monitoring of volcanic activity and earthquakes. The graduates of our laboratory mostly join the fields of earth resources, energy, construction and civil engineering. field of earth resource

Resources Production & Safety

  • K.Sasaki(Prof.)
  • M.Inoue(Assoc.Prof.)
  • Y.Sugai(Assoc.Prof.)
  • R.Nguele(Asst.Prof.)
Geological CO2 sequestration are studied for not only reducing CO2 emission but also enhancing hydrocarbon resources production. For example, Enhancing CoalBed Methane Recovery (ECBMR) by injecting CO2 into deep coal seams is expected because coalbet methane can be replaced with CO2 whose adsorption on coal is double that of CH4. Enhancement of Oil Recovery (EOR) is also expected by injecting CO2 into oil reservoirs because oil swelling and viscosity reduction of oil are caused by CO2 dissolution. Moreover, microbial restoration of natural gas deposits by stimulating the microbial conversion reaction of CO2 into CH4 in subsurface is also studied. On the other hand, the safety and environmental assessments during and after CO2 injection are important for geological CO2 storage. It is required to set up safety guideline and to evaluate long-term environmental changes. We are carrying out a natural-analogue study on the CO2 dispersion and diffusion characteristics in the shallow sediments on this perspective. CO2 dispersion and diffusion characteristics can be measured by gas concentration measurements on the surface. The measurements data are very useful to build up a numerical model for CO2 effective diffusion from deep sediments to the surface. CoalBed methane recovery,measurement data,enhancement of Oil Recovery,hydrocarbon resource production

Rock Eng. & Mining Machinery

  • H.Shimada(Prof.)
  • T.Sasaoka(Assoc.Prof.)
  • A.Hamanaka(Asst.Prof.)
  • T.Funatsu(Asst.Prof.)
  • S.Wahyudi(Asst.Prof.)
Rock engineering as well as rock mechanics is a truly interdisciplinary subject, with applications in geology and geophysics, mining, petroleum, and civil engineering. It relates to energy recovery and development, construction of underground spaces for transportation, water resources and defense facilities, prediction of earthquakes, and many other activities of greatest importance. Practitioners in this field have made important contributions in mining and civil engineering possible by accumulated practical experience, engineering judgment and often by a trial-and-error approach. In essence, the rock engineering practice has traditionally been an art rather than an engineering science. Despite this fact, the rock engineering science has been advanced by the devoted efforts of many scientist, researchers and engineers. Today, many workers in the rock engineering field tend to use comprehensive numerical modeling to study and solve complex issues. Although these models are powerful, it is difficult and rather impossible to obtain the necessary input data. It should be emphasized that field observations and measurements could play an important role in solving the issues. It has been pointed out that there is a big gap between theories and practice. many other activity,defense facility,practitioner,theory

Mineral Processing, Recycling & Environmental Remediation

  • K.Sasaki(Prof.)
  • N.Okibe(Assoc.Prof.)
  • H.Miki(Assoc.Prof.)
  • M.Nonaka(Asst.Prof.)
Our research focuses on the development of separation technologies to recover valuable materials from the earth's crust resources or from waste products, and treatment of effluents from temporally closed or definitely abandoned mines. In recent years advanced mineral processing and refining technology needs to deal ever more with the complexity encountered in the separation of these resources. Due to the finite character of our earth's resources, energy and environment capital our research focuses furthermore on the implementation of new models of sustainable resource economies. The further development of environmental protection and resources recycling technologies are hence at the core of our research. resource recycling technology,sustainable resource economy,development of separation technology

Energy Resources Eng.

  • S.Jalilinasrabady(Assoc.Prof.)
In geothermal engineering, the area of our research ranges from geothermal power generation in the deep formation to geothermal heat pumps in shallow ground. For the development of deep geothermal resources, we try to solve variety of problems occurs in the development and production, using reservoir engineering approaches. In the researches of geothermal heat pumps, field tests and numerical simulation are carried out for improving its efficiency and economy, aiming the mitigation of heat island phenomena and reduction of CO2 emission. In petroleum and natural gas engineering, the development of conventional and unconventional reserves is the targets of our research. Numerical simulation are couples with operation research techniques (for example, GA or ANN) to establish optimum development of hydrocarbon resources.

Solid Mechanics

  • H.Noguchi(Prof.)
  • S.Hamada(Assoc.Prof.)
  • M.Koyama(Asst.Prof.)
At the Solid Mechanics Laboratory, study for using safely the material used for a machine is done by exploring the essence of machine material and carrying out science of the safety. It is inquiring by specifically dividing into the following three classes for the industrial material (steel, nonferrous metal, composite material, ceramic and polymeric material) used for machines. (1) Mechanism clarification of fracture and fatigue phenomenon which applied state-of-the-art apparatus. (2) Proposal of the strength predictive-analysis model using the mechanics (a finite element method, micro mechanics, molecular dynamics) of various classes based on the clarified mechanism. (3) Application to the new-materials rapid utilization by applying the proposed model, joining with the other laboratory not only with the other mechanical laboratory. Solid mechanic laboratory,mechanism clarification of fracture,proposal,application

Fatigue & Fracture of Materials

  • K.Tsuzaki(Prof.)
  • Y.Fukushima(Asst.Prof.)
Use of hydrogen as an alternative energy has been attracting attention from the standpoint of global environmental concerns. Hydrogen generation, storage and transportation are required to build up the entire system. Most metals and their alloys are susceptible to hydrogen, which easily penetrates the metallic materials and degrades the strength characteristics. This is termed as so-called "hydrogen embrittlement". To ensure both the safety and economy of hydrogen energy systems, we have been investigating the basic mechanism for hydrogen embrittlement of metallic materials. We have been also working on strengthening of metallic materials which contributes to higher safety and efficiency of automobile and airplane. Dual-Phase steel,Electron microscope,High strength steel,Martensitic steel,Martensitic transformation,Microstructure,Phase transformation,Steel,Strength of materials,Tensile strength,Titanium alloy,TRIP steel,Yield stress
Thermal Energy Conversion System Laboratory

Thermal Energy Conversion System

  • M.Takahiko(Prof.)
  • K.Thu(Assoc.Prof.)
The ultimate goal of our laboratory is to find a solution of energy and environmental issues from the standpoint of thermal energy utilization. Especially, we focus on energy conversion from low grade thermal energy into useful outputs, such as power, electricity, refrigeration and air-conditioning. To improve performance of the energy conversion systems and also to create new technologies for next generation energy conversion systems, we study on heat and mass transfer enhancement, improvement of heat exchangers, engineering application of new materials, and applications to systems. Thermal Engineering,Refrigeration and Air conditioning,Heat Transfer,Adsorption,Heat Pump,Heat Engine,Global Warming,Energy Saving
Structural Materials

Structural Materials

  • H.Toda(Prof.)
  • K.Hirayama(Asst.Prof.)
In the structural materials research laboratory, we have offered superior solutions by combining the materials mechanics and materials science to solve the long-standing issues of structural materials. We would like to contribute to realize the safe and secure society. Our research interests cover steels, aluminum alloys and titanium alloys. We have studied the relationships between microstructure of such materials and deformation, fracture and fatigue behavior. We are a power user of the world’s best synchrotron radiation facility: SPring-8, which enables us to perform high-resolution 3D imaging of deformation and fracture behavior. Along with the development of advanced imaging technique, we have developed the state-of-the-art 3D image-based analysis techniques to assess localized deformation and fracture behavior. We have also applied these techniques to the long-standing issues in the mechanical engineering and materials science. We have proposed an innovative methodology for materials design on the basis of 3D images, which is called the reverse 4D materials engineering, in order to contribute to the creation of materials. 3D/4D material science,Aluminum alloy,Fatigue fracture,Material engineering,Mechanical engineering,Safe and secure society,Steel,Strength and Fracture of Materials,Strength of materials,Stress corrosion cracking,Synchrotron Radiation,Titanium alloy,X-ray Micro- and Nano-tomography

Flow Control Systems

  • S.Watanabe(Prof.)
  • S.Tsuda(Assoc.Prof.)
  • Y.Katayama(Asst.Prof.)
Flow control systems laboratory is involved in several research themes related to complex flow phenomena in fluid machinery and its compositions. Fluid machinery, which converts the energy between fluids (liquid and gas such as air and water) and machines, are used in wide variety of situations surrounding us from ventilation fans and water feed pumps for infrastructures, gas/steam turbines and hydroturbines for electric power plants, artificial organs and chemical pumps for medical application and bio/chemical engineering, to fuel feed pumps for transportation vehicles and aerospace engineering. Our laboratory, flow control systems laboratory, is pursuing our studies toward the developments of safe, reliable, and environmental-free technologies with multi-functions and high performance of fluid machinery, through the research and development of next generation turbopumps, establishment of effective utilization of renewable energy. In addition, we are aiming to clarify some abnormal phenomena in complex fluid flow, e.g., cavitation, in which many vapor bubbles are locally formed and vanished in high-speed flow of working liquid. We are conducting various experimental and numerical studies including molecular scale approach to understand the macroscopic and microscopic mechanisms of cavitation. flow control system laboratory,microscopic mechanism of cavitation,environmental-free technology,numerical study

Fluids Eng. Science

  • M.Furukawa(Prof.)
  • H.Mori(Assoc.Prof.)
  • K.Yamada(Asst.Prof.)
One of the main research topics of Fluids Engineering Science Laboratory is analysis of complex internal flow fields related to turbomachinery, including vortex structures such as tip leakage vortex, flow separation, aerodynamic noise, and inception of rotating stall, by using large-scale numerical simulations of turbulent flows. The laboratory also works to develop three-dimensional aerodynamic design for rotating blades of turbomachines and novel imaging measurement technique using molecular sensors for EFD analysis. main research topic of fluid Engineering Science Laboratory,blade of turbomachine

Heat & Mass Transfer

  • H.Takamatsu(Prof.)
  • K.Kurata(Assoc.Prof.)
  • H.Wang(Asst.Prof.)
The Heat and Mass Transfer Laboratory is dedicated particularly but not restricted to the studies on heat and mass transfer in biological systems. Research covers a broad area associated with thermal engineering, bioengineering, and biothermal engineering. Current projects include: Measurement of fluid thermal conductivity with a small sample by using a micro-beam MEMS sensor. Measurement of thermal transport properties of graphene, biopolymer fibers and thin films using MEMS technologies. Noninvasive imaging of internal structure detecting thermal transport properties Experimental and theoretical modeling of freezing during cryosurgery and cryopreservation. Experimental and theoretical studies on non-thermal irreversible electroporation of malignant tissues. Research on bone remodeling and regeneration adapted to mechanical stimulation. Development of open-source hardware for biological research and education. Cell,Electric field,Electric pulse,Medical engineering,Temperature distribution,Thermal conductivity

Thermal Energy Conversion

  • S.Mori(Prof.)
  • Y.Hamamoto(Assoc.Prof.)
  • K.Miyata(Asst.Prof.)
We study on the heat and mass transfer mechanism of fluid in heat and power conversion systems and thermal energy utilization systems for advanced energy conversion technologies. There are following research groups in the lab. The super critical pressurized fluid group aims to clarify the heat transfer mechanism of the fluid at super critical pressure for a development of new generation advanced nuclear reactor. The advanced heat exchanger group focusing on the heat exchanger for heat pump and heat & power systems aims to clarify the boiling and condensation mechanisms of fluid, and the properties in a capillary tube as an element of heat exchanger. The hydrogen absorption and energy storage system group focuses on the advanced hydrogen storage and heat pump system using metal hydride packed beds. The thermal fluid flowing in micro scale porous material group aims to clarify the heat and mass transfer mechanism of two phase flow in micro scale porous medium such as a gas diffusion layer in a fuel cell system. The adsorption group focuses on the development of the advanced thermal energy conversion technologies with vapor adsorption process driven by low grade thermal energy from waste heat, solar and renewable energy. advanced energy conversion technology,advanced thermal energy conversion technology,property

Thermofluid Physics

  • Y.Takata(Prof.)
  • N.Sakoda(Asst.Prof.)
We study a thermal transport and thermodynamic phenomena in which phase change phenomena related by experimental and theoretical method. We also study applying these phenomena for development of various devices. The scale of the studied object reaches widely from the macro scale, like the condensation of the heat exchanger for the cooling problem and air-conditioning in the steel manufacture process, to the Nano scale like the development of the micro freezer, the micro processing by the laser ablation, and the synthesis of carbon nanotubes and nanosized particles. Moreover, to establish the intellectual foundation for the hydrogen energy society, we are studying the research on the measurements of a PVT data, a thermal conductivity, and a viscous coefficient of hydrogen in a high-pressure region.
Large-eddy simulation on coal combustion furnace by 10,000 parallel computing

Reactive Gas Dynamics

  • T.Kitagawa(Prof.)
  • H.Watanabe(Assoc.Prof.)
  • Y.Nagano(Asst.Prof.)
Combustion phenomena are studied in our Reactive Gas Dynamics Laboratory. Our interests include not only conventional fuels but also alternative and next-generation fuels such as carbon neutral biomass, coal gasification gas and hydrogen. Huge amount of energy is utilized by combustion of fuel in the world. And the demand for energy is still growing. It is very important to understand combustion properties of these fuels for the global warming and energy issue. We investigate the fundamental and practical aspects of combustion properties and techniques by experiments using the apparatus unique in the world and numerical simulation. Our studies also contribute to R&D and design of automobile engines, jet engines, gas turbines and boilers in industries. CCS,Coal gasifier,Diffusion flame,Direct numerical simulation,Elementary reaction,Flamelet model,IGCC,Large-eddy simulation,Laser diagnostics,Massively parallel ,NOx,Numerical simulation,Premixed flame,Pulverized coal combustion boiler,Radiation,Schlieren method,Soot,Spherical propagating flame,Turbulent combustion model,Turbulent flow
Thermal Physics and Engineering

Thermal Physics & Eng.

  • M.Kohno(Prof.)
Thermal physics and engineering laboratory is working on understanding of phenomena related to heat transport and thermal energy conversion. We also trying how to apply fundamental phenomena to engineering applications. For efficient energy utilization, we're studying "Development of silicon thermoelectric materials using high pressure torsion (HPT) process" and "Measurement of thermophysical properties of supercritical fluids by thermoreflectance method". To understand thermofluid phenomena in micro/nano scale, we observe molecular adsorption / desorption phenomenon in vertical-aligned carbon nanotube film using Raman spectroscopy. In addition, "Behavior of micro droplets colliding with solid surface and study of surface properties on phase change heat transfer" is also conducted to improve steel produce technology. Carbon Nanotubes,Heat Transport,Liquid-Vapor Phase Change Heat Transfer,Molecular Adsorption and Desorption,Spray cooling,Thermal Energy Conversion,Thermal Physics and Engineering,Thermoelectric,Thermofluid,Thermophysical Property

Engine Systems

  • O.Moriue(Prof.)
We are studying on combustion phenomena mainly related to internal combustion engines. In order to reduce pollutional emissions and maximize thermal efficiency of internal combustion engines, it is important to understand and control the combustion inside. The combustion inside the internal combustion engine is highly complex; namely, mixing of fuel with oxidant, phase transition and thousands of elementary reactions occur at high pressure. In order to understand such complex phenomena and aiming for the development of high-performance engines, we carry out various researches ranging from fundamental researches to application problems of practical techniques.

Vibration & Acoustics

  • S.Kijimoto(Prof.)
  • S.Ishikawa(Assoc.Prof.)
  • Y.Takayama(Asst.Prof.)
We study about 'Active noise control in 3-dimensional sound field', 'Acoustic analysis by considering nonlinearity', 'Flexible actuator using magnetic force', and 'Vibration control using magnetic damper', for realizing more comfortable living environment. In addition, we study also about 'Evaluation of comfortableness by biological signal processing', 'Measurement of flexibility of the living body', and 'Sound wave propagation analysis in the living body' for realizing human-machine harmonic society. evaluation of comfortableness

Mechanical Vibration

  • T.Kondou(Prof.)
  • H.Mori(Assoc.Prof.)
  • N.Sowa(Asst.Prof.)
In our laboratory, education and researches associated with dynamics of machinery and mechanical vibration are conducted. In mechanical systems, vibration often occurs because of the repetitive motion. In addition, vibration is a harmful phenomenon in most cases. Our target is solving vibration problems in mechanical systems fundamentally by studying the generation mechanisms of various mechanical vibration using the latest modeling technology and the analysis method. Furthermore, effective utilization of vibration is also studied. dynamic of machinery
Structural Dynamics

Structural Dynamics

  • T.Inoue(Prof.)
  • R.Kadowaki(Asst.Prof.)
Mechanical vibration is an important phenomenon affecting performance, quality and safety of machines. There are many demands for effective analysis, control and beneficial use of the vibration. Also, analyzing the machine vibration and the structural vibration excited by an external device is effective for health diagnosis of the machine and the structure. The diagnosis and non-destructive testing are industrially important issues. So in our laboratory, we operate following studies: 1) Effective vibration analysis and control method to improve the performance and quality of the machines. 2) A new mechanism whose passive vibration automatically follows the excitation frequency. This mechanism has potential to apply a vibration control device and a power generator for vibration energy harvesting. 3) New diagnosis methods focusing on instantaneous frequency of ultrasonic pulse. The instantaneous frequency is time varying frequency of waves. It is a sensitive property for small changes of the pulse. 4) Non-destructive testing and measurement using vibrations such as ultrasound. Complex wave,Coupled oscillation,Dynamic damper,Energy harvesting,Modal analysis,Nonlinear ultrasonic technique,Numerical simulation,Signal processing,Vibration control,Wavelet transform

System Eng.

  • K.Kiguchi(Prof.)
  • J.Arata(Assoc.Prof.)
  • Y.Tsuji(Asst.Prof.)
Our research focuses on the development of new Robotic devices in order to promote the improved effectiveness in clinical practice as well as quality of life for the users. Robotic technology involves many components such as mechanism, control, sensor and software. We believe that the creative ingenuity is the source for introducing the robotic technology into the human-centered medical applications beyond the conventional industrial technologies. One example of our study is the development of a wearable assistive robot that can provide natural motion of the user combined with new mechanism and intelligent control. We are especially interested in the area of rehabilitation robots, surgical robots, motion assist robots, and biological body simulators. conventional industrial technology

Systems Control

  • M.Yamamoto(Prof.)
  • Y.Nakashima(Asst.Prof.)
We study human centered robot systems which are used near human or with touching human. Medical robots and human care robots are typical examples of the robot systems. For such robot system, human friendly and safe properties are strongly demanded. Aiming practical applications, we study basic ideas, mechanisms, theories, and control methods for the human centered robot systems. We are also conducting collaborative research projects to meet the growing needs in the industries and the real world. safe property,industry,theory

Human Centered Robotics

  • K.Tahara(Assoc.Prof.)
We are trying to understand the advanced motor intelligence of living things, such as human, theoretically and mechanically, and to apply such intelligence to robotic devices as engineering applications. For instance, human hands are extremely versatile, but robots that can realize their functions does not appear yet. We are analyzing how a human can grasp and manipulate it, and developing a theoretical framework to realize it in robotics. In addition, human muscles are sometimes powerful, sometimes soft, and generate sophisticated motions by changing their characteristics freely. In order to realize such functions with robots, we are working on developing artificial muscle actuators or continuously variable transmission mechanisms. Bipedal robot,Motor intelligence,Multi-fingered hand,Musculoskeletal system,Redundant manipulator,Soft robotics
Precision Machining

Precision Machining

  • S.Kurokawa(Prof.)
  • T.Hayashi(Assoc.Prof.)
  • T.Sajima(Asst.Prof.)
Development of the state-of-the-art manufacturing processes and measuring techniques for the green devices and machine elements ablation,Carbon fiber reinforced plastic,Chemical Mechanical Polishing,CMM,CMP,Coordinate Measuring Machine,Femtosecond laser,Gear,Gear accuracy,Giga range,Hydrogen tank,nano meter,Nano particle,Particle sizing,Planarization,Power semiconductor,Precision Machining,Slurry,Tool wear

Material Processing

  • K.Shinagawa(Prof.)
  • F.Tsumori(Assoc.Prof.)
In this laboratory, the development of manufacturing process of metal and metal powder materials using plastic deformation has been mainly studied. The components produced by these processes is at the core of the manufacturing industry. Among them, process technologies related to plastic deformation and powder metallurgy have been focused in this laboratory. Many kinds of processing technologies being investigated such as Rolling manufacturing high strength gears, Metal Injection Molding (MIM) making mass production of complex parts possible, Laser Addictive Manufacturing producing directly complex 3D part from CAD data. They are covered from establishment of deformation principle through basic experiment to development for higher accuracy and high functionalization desired by industry. process technology,Many kind of processing technology,Metal injection molding

Machine Elements & Design Eng.

  • Y.Sawae(Prof.)
  • T.Yamaguchi(Assoc.Prof.)
  • T.Morita(Asst.Prof.)
Wide variety of research about wear and failure mechanism of machine element used in various applications, from new energy systems to medical devices, is conducted. For example, the wear mechanism of materials used in bearings, seals and valves is examined experimentally by using specially designed test equipments which can reproduce the mechanical and environmental conditions of specific applications, such as joint prostheses, gas compressors and gear transmissions. Purposes of our studies are to supply experimental data for a design guideline of safe and reliable machine systems, and also to develop a novel mechanical design technique based on various new ideas. purpose,study

Tribology

  • J.Sugimura(Prof.)
  • K.Yagi(Assoc.Prof.)
  • H.Tanaka(Asst.Prof.)
Tribology is science and technology of friction, wear and lubrication. It is one of the most important areas for maintaining global environment and saving energy. A characteristic feature of this area is that it is an interdisciplinary research area of mechanical engineering, chemistry and materials science. We are studying new methods of lubrication and materials for better performance, lower energy consumption and longer life of machinery. We are also tackling the advanced problems of hydrogen tribology that are necessary for producing and using hydrogen as a secondary energy carrier in the future low carbon society. advanced problem of hydrogen tribology,new method of lubrication,material science

Biofunctional Eng.

  • S.Kudo(Prof.)
  • T.Sera(Assoc.Prof.)
  • K.Nakashima(Asst.Prof.)
We are elucidating the mechanisms by which the functions of cells and tissues adapt to mechanical environments on the basis of biomechanics. We are also trying to clarify the mechanism and micro- and nanoscopic biotransport. Macroscopic biotransport can be often be analyzed by using a differential equation to model physical phenomena. However, biotransport at much smaller scales (the micro-and nano-scales) is more difficult to model in physical detail. Clarification of the mechanisms of such micro- and nanoscale biotransport will be useful not only in improving our understanding of the mechanisms of disease and the maintenance of stable biological functions, but also for the development of clinical applications such as tissue engineering. The following are examples of the studies that have been performed. function of cell,mechanism of disease,study,clarification
Bio-medical Fluid Engineering

Bio-medical Fluid Eng.

  • Y.Yamanishi(Prof.)
This Laboratory is aim to clarify unknown function of cells by using micro-nano technology based on mechanical engineering, electrical engineering and bio-medical engineering, and also we are targeting to contribute to the cellular scale medical treatment. For example, researches on novel gene injection method, protein crystallization, micro-nano scale actuation in micro-fluidic channels are studied which contribute to clarify unknown phenomenon in biomedical fields. Especially, our invention of electrically-induced bubble injector (needle-free injector) contributes to wide range fields of engineering. Actuator,Bio,Biomedical,Bubble,Cavitation,Cells,Electrochemical,Electronics,Fluid,Functional,Injector,Interface,Medical,MEMS,Micro,Nano,Needle-free,Plasma,Processing,Sensor

Optical MEMS & BioMEMS

  • R.Sawada(Prof.)
  • H.Nogami(Asst.Prof.)
We are working on the research and development and also expansion of the application of a portable radio signal transmission micro sensor, developed by using photolithographic technology (micromachining technology), not consisting of assemblies of individual optical components as before. All following devices are several times or several tens times smaller than the conventional devices and have realized the world smallest size. Also, there are applied in medical engineering area. 1) a tiny scanning microscope which enables a tomography applying a micro mirror, 2) high accuracy micro displacement sensor which can be built in a micro mirror, motor, finger of robot, or manipulator, 3) noninvasive portable micro devices such as a blood flow sensor, blood sugar level sensor, and alcohol level sensor which performs sensing on a body condition, 4) low power consumption radio signal transmission sensing device for avian influenza. several ten time,assembly

Hydrogen Utilization Processes

  • K.Sasaki(Prof.)
  • S.Taniguchi(Prof.)
  • Y.Shiratori(Assoc.Prof.)
  • Y.Tachikawa(Asst.Prof.)
Fuel cells are promising environmentally-compatible technologies for this century. For technological development and their commercialization, however, various scientific as well as engineering aspects should be clarified and established. Our laboratory, the Hydrogen Utilization Processes Laboratory, wishes to contribute to this promising technological field, based on more than 20 years of research experience in the field of fuel cell technology. So far, we have built up the highest level research facilities in Japan, and our own facilities enable us to conduct a wide range of fuel cell R&D, from materials to systems. Fuel cell fabrication equipment, facilities for electrical, thermal, and electrochemical analysis including ca. 40 fuel-cell evaluation systems and characterization instruments, such as the highest-resolution FESEM-EDX and STEM-FIB systems are available exclusively to our group members. At this moment, we address the development of novel electrode materials, establishment of system design criteria, elucidation of mechanisms and processes and breakthroughs in technological issues concerned. fuel cell fabrication equipment,year of research experience,promising environmentally-compatible technology,wide range of fuel cell R&D,facility,own facility

Fuel Cell System

  • K.Ito(Prof.)
  • T.Kitahara(Assoc.Prof.)
  • H.Nakajima(Asst.Prof.)
Electrochemical energy converter, such as fuel cell and electrolyzer, can work at higher efficiency and an excellent reliability with lower noise. These outstanding features of fuel cell and electrolyzer motivate us to utilize them as a main energy converter in next generation. Although a part of them has been commercialized, a more cost-reduction, durability and performance are required to be addressed. Against this background, our laboratory conducts R&D for fuel cell and electrolyzer based on mechanical engineering approach. outstanding feature of fuel cell,R&D

Hydrogen Storage System

  • E.Akiba(Prof.)
Hydrogen is gas at ambient temperature and pressure. The volume energy density of hydrogen gas is only 1/3000 of gasoline, therefore, to store and transport hydrogen in a limited space is a critical issue to be solved before to realize the hydrogen economy. Hydrogen storage materials provide compact, energy efficient, safe and affordable method of hydrogen storage and transport. The volume density of hydrogen in the hydrogen storage materials is superior than compressed and liquefied hydrogen. Our Laboratory investigates hydrogen storage materials and develops novel materials especially for on board applications those are indispensable to realize the hydrogen economy. laboratory

Advanced Hydrogen Materials

  • S.Nishimura(Prof.)
Rubbers and polymeric materials are used as sealing devices of high-pressure hydrogen gas in equipments for hydrogen energy systems. For example, rubber O-ring for hydrogen gas sealing could be broken by high-pressure hydrogen exposure. In our laboratory, we are going to clarify the fracture phenomenon of rubber and polymeric materials exposed to the high-pressure hydrogen gas. In order to clarify the influence of dissolved hydrogen on the fracture behavior of the materials, we have been performing thermal desorption analyses and nuclear magnetic resonance measurements of the dissolved hydrogen gas in the materials. To establish material design guideline for high-pressure hydrogen sealing materials, we are continuously discussing about the relationship between fracture behavior of the materials and their composition or molecular structure.

Aerospace Propulsion

  • N.Yamasaki(Prof.)
  • C.Inoue(Assoc.Prof.)
  • Y.Inokuchi(Res.Assoc.)
At the Aerospace Propulsion Laboratory, out of aerospace propulsion systems, research on airbreathing engines used for the aircrafts are mainly executed. Our main research objects are the internal flows which changes with time, i.e., the deterministic unsteady flows such as flutter of blade rows and fan noise from jet engines, and the stochastic flows originated from turbulence such as the jet noise from aerospace propulsion systems and the fan broad band noise which is of our concern recently. We are working on numerical prediction, elucidation of engineering phenomena, and reduction of undesired phenomena of the time-changing internal flows. We also address to the mixing and combustion enhancement which is one of crucial issues in the hi-speed propulsion systems. Our research methods include the numerical calculation based on the computational fluid dynamics (CFD) and utilization of the experimental facilities such as the jet experimental setup in an anechoic chamber and the fan experimental rig. Aerospace propulsion laboratory,experimental facility,research method include

Fluid Mechanics

  • K.Abe(Prof.)
  • D.Wall(Assoc.Prof.)
  • H.Kihara(Asst.Prof.)
This laboratory aims to develop high-performance CFD technique for all flow mach numbers, i.e. incompressible flow around a wind turbine, transonic flow around an airplane and supersonic/hypersonic flow around a planet-entry vehicle, including the development of modeling complex flow phenomena.

Aerospace Applied Physics

  • K.Takahashi(Prof.)
  • Q.Li(Asst.Prof.)
Our current research is focused on experimental elucidation of unsettled problems about heat transfer and fluid mechanics, especially nanometer-order heat and mass transport problems, by means of MEMS technology, laser and advanced microscopies. For example, the thermal conductivity of individual nanomaterials of sub-100nm size can be measured by the sensors fabricated in our lab, and the interfacial thermal resistance between nanomaterials and the substrate is being measured by the Raman spectroscopy method. For solid materials, it has been known that the physical properties change drastically when the size is shrunk to nanometer order, which is also true for fluids. As for fluid-related problems, we have been investigating on the physical mechanism of nano-sized bubbles (nanobubbles). Besides, we are also very interested in the unsolved issue of the interaction between nanomaterials and fluids. By understanding and utilizing these heat and flow phenomena at the nanoscale, we aim to create knowledge for significantly improving the performance and reliability of systems and devices including aerospace vehicles. fluidic phenomena,fluidic system,functional material,transport of phonon,carbon nanotube,thin film,nanotechnology,target,atom,novel

Strength & Vibration

  • S.Yashiro(Assoc.Prof.)
  • H.Nagai(Asst.Prof.)
Strict weight reduction is required for aerospace vehicles, and advanced composite materials have been frequently used because of their high specific strength and modulus. However, a lightweight aircraft design that fully utilizes the characteristics of advanced composite materials has not been achieved. In order to overcome this problem, the Strength and Vibration Laboratory aims to enhance reliability of composite structures through modeling the lifecycle of composites from manufacturing to damage progress and fracture. In particular, we have been studying dynamic behavior and strength of composite materials, for example, out-of-plane impacts, evaluation of resistance to delamination progress, and modeling of composites with complex microstructures. Due to the demand of light weight, aerospace structures are subjected to aeroelastic deformation and vibration as a coupling phenomenon between structural and fluid dynamics. Aiming at understanding of aeroelastic phenomena for lightweight structures and its utilization, we are conducting aeroelastic analysis and design for joined-wing airplanes, wind-lens turbine system, and flapping type micro air vehicles. Bird strike,Carbon fiber reinforced plastics,CFRP,Delamination,Discontinuous fiber reinforced plastics,Fatigue,Fiber break,GFRP,High velocity impact,Injection molding,Nondestructive inspection,Polymer matrix composites,Resin transfer molding,RTM,Short fiber reinforced plastics,Smart materials,Structural health monitoring,Ultrasonic testing

Aerospace Structural Systems Eng.

  • N.Uda(Prof.)
  • Y.Shinmoto(Asst.Prof.)
Advanced composite materials are extensively used in aerospace structures due to their high stiffness and strength to weight ratio. Damage progression in the advanced composite materials, however, is very complicated in comparison with conventional metal materials, so it is necessary to characterize the damage tolerance of aerospace composite structures. Pursuing development of lightweight, highly-reliable aerospace composite structures, we are conducting researches on mechanical properties and fatigue characteristics, failure mechanisms, interlaminar delamination propagation behavior, low-cost manufacturing technique, and nondestructive evaluation of advanced composite materials. Furthermore, we have been studying development and evaluation of composites with nano materials, evaluation method for interfacial properties of composites, failure strength of mechanical joint in composite laminates, mechanical properties of composites with irregularly cross-sectional shaped reinforcements, repair of composite sandwich panels, and probabilistic design analysis method for composite structures. composite material Fatigue property,composite laminate Development of evaluation method,composite material Probabilistic design analysis method,composite sandwich panel etc,super heat-resistant polymer composite material Development of nanocomposite repair,aerospace primary structure,Mechanical property,interfacial property,damage mechanism,Interlaminar fracture toughness enhancement,Low-cost manufacturing technique,high specific stiffness,matrix,following

Guidance & Control

  • S.Hokamoto(Prof.)
  • M.Bando(Assoc.Prof.)
  • S.Nagasaki(Asst.Prof.)
The Guidance and Control Laboratory does research on the control of spacecraft and autonomous systems. Our research aims are to develop new concept or theory based on new idea. One of our research themes is nonlinear control for systems with non-integrable constraints (: nonholonomic systems). Applying the nonlinear control allows to reduce the number of actuators to control the state variables of systems. The second one is research on autonomous vehicles, which can perform their missions in unknown environments. We are doing experimental research for planetary exploration rovers with unique shape, motion and environment recognition system mimicking compound eye of flying insects, and so on. The third is research on trajectory design for spacecraft. Because the requirements for space missions become complicate year by year, we combine control theories with space dynamics to design and control the trajectories of spacecraft. Cultivating a new concept or theory and developing its realistic procedure is goal of the research. control of nonholonomic system,nonholonomic constraint,nonlinear system,Nonholonomic system,camera system,other research topic,laboratory's main research,such constraint,terrain recognition technique,two topic,rough terrain,isotropic leg arrangement,typical example,tether satellite,first one,space robot,solar sailcraft,following,Rovers,reduction,development,guidance,mobility,means

Flight Dynamics

  • S.Higashino(Assoc.Prof.)
Flight dynamics laboratory basically concerns dynamics and its application to aircraft, while its research interest expands including control engineering, system engineering and information technology. Application and system oriented research and education are major characteristics of the laboratory. One of the recent research topics is a novel design method of automatic flight control law, which is planned to apply to a JAXA's unmanned scaled-model supersonic research airplane as a result of collaborative research on intelligent flight control with JAXA. The laboratory challenges widening application of UAVs(unmanned aerial vehicle) by using miniaturized high-performance onboard computers and digital avionics. One of the on-going development projects is UAV systems for aerial geomagnetic survey in Antarctica. The vehicles were collaboratively developed with National Institute of Polar Research, and they have been flight tested recently in King George Island, Antarctica. Another project is a UAV system which responds to the demand of a researcher in Fukuoka University to recover aerosol measurement equipment from a high altitude balloon. The UAV is also to be used in Antarctica in 2013 as one of the projects of JARE 54(54th Japan Antarctic Research Expedition). Students can learn many things in trying to solve various problems raised in the development. concern dynamic,Flight dynamic laboratory,54th Japan Antarctic Research expedition,laboratory challenge widening application of UAVs,project of JARE,student

Space Systems Dynamics

  • T.Hanada(Prof.)
  • Y.Yoshimura(Asst.Prof.)
  • S.Nagasaki(Asst.Prof.)
One of features to be emphasized here is the small satellite project initiated by graduate students. First, students learn entire lifecycle of a space system through a can-sized tiny satellite. Then, students get involved in a real small satellite project. Another feature is to apply astrodynamics to space debris issues. Space debris represents all space objects non-functional and human made. As an example, we investigate on the instability of the current debris population in the low-Earth orbit region (altitude below 2000 km). Another example is ground-based optical measurements in the geosynchronous Earth orbit region. Both examples are being conducted through collaboration with JAXA. Last feature comes from collaboration between research activities featuring space debris issues and students' small satellite project. We're conducting feasibility studies on small and medium debris removal using special low-density materials, and on small debris detecting satellite as secondary payloads to monitor space debris environment around the primary payload. student ' small satellite project,geosynchronous earth orbit region,primaly payload,feasibility study,research activity
Aerothermal phenomena in scramjet (supersonic combustion ramjet) engines

Space Transportation Systems Eng.

  • H.Ogawa(Assoc.Prof.)
Space transportation systems play a key role in space development to realise safe, affordable access to space from the Earth as well as efficient, reliable transfer in space. This decade has seen unprecedented increase in the launch of technological and commercial satellites, and growing interest and demand in space transfer for various purposes such as space utilisation with micro-satellite platforms, scientific exploration of deep space, and space tourism using reusable space vehicles. Space systems and their payloads undergo severe environments throughout the mission phases including launch, deployment, operation, and re-entry that differ considerably from those on the ground. This necessitates concurrent system engineering approaches taking all factors into account for successful accomplishment of the mission objectives by ensuring maximum possible performance and adequate safety within given technological, environmental and budgetary constraints. Thorough understanding of physical phenomena and their influence on the performance is essential to the design, development, and operation of space transportation systems. Our Laboratory actively conducts research on space systems, missions, and propulsion technologies in multidisciplinary approaches based on numerical simulation, optimisation, experiment, and theory in collaboration with various international and national institutes including JAXA. Computational fluid dynamics,Compressible aerodynamics,Shock wave,Boundary layer,Fuel injection and mixing,Fuel ignition and combustion,Chemical reactions,Nonequilibrium flow,High enthalpy flow,Turbulence modelling,Multi-objective optimisation,Evolutionary algorithms,Surrogate modelling,Sensitivity analysis,Uncertainty quantification,Trajectory simulation,Chemical propulsion,Electric propulsion,Orbital mechanics,Reusable launch systems