"H" Keywords - 72 Result(s)

 H

[High Performance Computing]

High Performance Computer Architectures and their Applications

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特徴・独自性
  • My research interests include the design and development of high-performance supercomputing systems and their applications. Targeted areas range from the key components of supercomputing systems, which include processor architectures, memory subsystems, network systems, task schedulers, and compilers, to high-performance multimedia processing algorithms such as photo-realistic computer graphics.
実用化イメージ

Currently I am conducting joint-research projects with several companies in the fields of high-performance computer architecture design and advanced simulation technologies for industrial design such as next-generation supercomputers and highly efficient and comfortable regional jets.

Researchers

Graduate School of Information Sciences

Hiroaki Kobayashi

Supercomputing for enabling large-scale advanced simulations

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特徴・独自性
  • As modern supercomputers are getting larger and more complicated, it is not so easy to exploit their potential performance. It is necessary to develop a simulation code with considering various factors for both hardware and software reasons, and hence expert knowledge and experiences about supercomputing are often needed to achieve high actual performance. Our research interests focus on shaping future supercomputing systems and their applications, especially system software technologies for effectively using the future supercomputers. Also we are always exploring how to make good use of the state-of-the-art hardware and software technologies in order to enable unprecedented-scale and more advanced simulations.
  • From beginning (apply for use of our supercomputer) to end (get a solution), we can consistently support developing large-scale practical simulation, which is feasible only by using the supercomputer. As a supercomputing center, we have a long history of parallelizing and accelerating a lot of practical simulation programs. In addition, we are looking for research collaborators who are interested in streamlining and/or facilitating large-scale scientific software development.
実用化イメージ

Researchers

Cyberscience Center

Hiroyuki Takizawa

[high pressure]

Peptide formation under high P and T conditions: new carbon fibers

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特徴・独自性
  • Peptides are formed through the enzymatic actions in living organisms, but difficulty exists to form peptide by non-enzymatic actions. Here we report the success of peptide formation under anhydrous, high P and T conditions. We were successful to form 11-mer of glycine and 5-mer of alanine. They are important constituents of spider silk, which is a candidate of next generation of carbon fibers. Therefore, our techniques have potentials to apply making new carbon fibers without biotechnology.
実用化イメージ

Researchers

Graduate School of Science

Takeshi Kakegawa

Supercritical Fluid Technology Based on its Unique Properties

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特徴・独自性
  • We have investigated various physical properties of supercritical fluids and their mixture. The properties studied are density, viscosity, phase equilibria, solubility, etc. under high temperatures and pressures. Using these suprecritical fluid features, we have proposed their application technologies; such as extraction of natural resources, cleaning, drying, catalyst preparation, polymer processing, polymer recycling, biomass conversion and controlled delivery. The methodologies used are experiments, simulation and theretical ones.
実用化イメージ

Cleaning Technology: precision machinery component, optical component, etc.
Extraction of Natural Resources: food, supplements, aroma.
Polymer Processing: functional resin, electronic component, etc.

Researchers

New Industry Creation Hatchery Center

Hiroshi Inomata

[high quality biodiesel]

A Novel Process for Continuous Production of High Quality Biodiesel with Ion-Exchange Resin Catalysts

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特徴・独自性
  • We successfully developed a continuous production process for high-quality biodiesel. This production technology is very simple, just passing through the reactors packed with ion-exchange resins without complicated upstream and downstream processes, which provide additional production cost and environmental stress and the entire process is fully automatic. With this technology, you can easily produce high-quality biodiesel from various cheaper oils with fatty acid content up to 100%.
実用化イメージ

This innovative technology succeeds in solving the serious problems in the current biodiesel production, restriction by shortage of feedstock supply and the unstable quality of biodiesel due to the soap formation. This technology also applies to the production of fatty acid methyl ester, a starting material for surfactant production, which is an important intermediate step in oleochemistry.

Researchers

Graduate School of Engineering

Naomi Kitakawa

[High reflective index]

Polymer-nanoparticle hybrid materials

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特徴・独自性
  • Hybrid materials that show multi-functions of polymer and nanoparticles are expected to be used in future industries, and thus many research and development have been actively conducted. However, since the affinity of polymer and inorganic nanoparticles is very low, in most of the cases, properties of different materials are incompatible in the hybrid materials. To create the hybrid materials with incompatible multi-functions has been considered a difficult task.
  • However, by using supercritical fluid technology, we have succeeded in making hybrid materials with incompatible multi-functions.
実用化イメージ

Now, variety of hybrid materials are being developed, including
・Transparent, flexible, high reflective index, and high fabricability,
・Flexible, high heat conductivity, low electric resistivity, and high fabricability.

Researchers

Advanced Institute for Materials Research

Tadafumi Ajiri

[high sensitivity radio-impurity measurement]

High Sensitivity Radioactivity Measurement at Ultra-Low Radioactivity Environment

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特徴・独自性
  • Research Center for Neutrino Science established ultra-low radioactivity environment (trillion times lower than natural environment) with 1200 cubic-meter organic scintillator detector at 1000m underground where very stable temperature/humidity and low vibration are maintained. We are pursuing high sensitivity measurements, especially neutrino observation, and are also developing purification system for ultra-low radioactivity and high performance radioactivity detectors.
実用化イメージ

The established ultra-low radioactivity environment is suitable for rare phenomena study and is also applicable for high sensitivity radio-impurity measurement. It may also apply to investigation of biological influence of low radioactivity irradiation. The other applications such as neutrino detection technique for monitoring nuclear reactors and medical use of high sensitivity radioactivity detectors may also be considered.

Researchers

Research Center for Neutrino Science

Kunio Inoue

[high strength steel]

Hydrogen embrittlement of high strength steels

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特徴・独自性
  • We are studying hydrogen embrittlement property of high strength steels from the aspects of both the effect of hydrogen on mechanical properties of high strength steels and hydrogen uptake behavior in corrosive environments. The topics of our study includes clarification of mechanism of hydrogen embrittlement of various steels, investigation of hydrogen entry caused by corrosion using electrochemical techniques, hydrogen visualization, proposing evaluation methods for hydrogen embrittlement property and so forth.
実用化イメージ

Collaborative research in the field of hydrogen embrittlement, for example, hydrogen embrittlement properties of high strength steels and the effects of metallographic structure and hydrogen traps, proposal of evaluation methods for hydrogen embrittlement property for some specific steel and for parts with specific shape, development of novel hydrogen visualization techniques.

Researchers

Institute for Materials Research

Eiji Akiyama

[High temperature]

Development of the method of Baby Borehole Hydraulic Fracturing, BABHY

特徴・独自性
  • For the effective measurement of the reopening pressure in hydraulic fracturing, it is necessary to use the testing equipment with sufficiently small compliance. This limitation makes it difficult to apply the hydraulic fracturing for the measurement of the maximum stress, because the compliance of conventional equipments is generally so large. Taking account of this situation, we proposed a new concept which allows us to do the in-situ tests of hydraulic fracturing for stress measurement at so deep depths as more than 1 km. We call the concept the Baby Borehole Hydrofracturing, BABHY for short. In order to put the new concept into practice, we developed the BABHY sonde and finally we succeeded to carry out hydraulic fracturing test by using the tools in a vertical borehole of 811 m depth. We hope to conduct collaborative research with a willing company for a practical application of this technology in industry.
実用化イメージ

Researchers

Institute of Fluid Science

Takatoshi Ito

[High temperature physical chemistry]

Eco-Material Processing

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特徴・独自性
  • The major subject of our group is ferrous process metallurgy including thermodynamics of metals, alloys and molten slags, high temperature heterogeneous kinetics, phase equilibria of complex oxide systems and so on. We are interested in physic-chemical fundamentals of processing of metals, slags, scrap and waste. Recently our research interests are extended to multidisciplinary area so-called "Industrial Ecology" by the combination of process metallurgy, LCA (life cycle assessment) and social science such as econometrics.
実用化イメージ

Typically our research group is aggressively working in the area of material flow analysis of critical metals considering the quality of recycled materials. Currently our major research partners are steel and non-ferrous industries, while we do hope to collaborate with waste treatment company, mineral industry and an administrative organ.

Researchers

New Industry Creation Hatchery Center

Tetsuya Nagasaka

[High-Dimensional Dynamics]

Brainmorphic Computing Hardware

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特徴・独自性
  • We will develop a brainmorphic computing hardware, which realizes the brain-specific functions such as conscious/sub-conscious process, self, selective attention, and so on, by directly using inherent physics and dynamics of constituent devices. The resulting hardware would be small, efficient, high-performance. Some examples include the chaotic neural network reservoir, optimization through high-dimensional complex dynamics, and neural network composed of spin-orbit torque nano-devices.
  • The resulting hardware is suitable for the edge AI which learns users’ personal behavior. Examples include watching service devices embedded in hearing aids or dental implants, which monitor and learn personal cardiac and brain-wave signals or saliva ingredients, to detect abnormal situations.
実用化イメージ

Edge AI devices, especially for peri-personal space), Time-series processing (prediction, recognition, and categorization), Online real-time learning.

Researchers

Research Institute of Electrical Communication

Yoshihiko Horio

[High-impact polystyrene]

Chemical Recycling of Problematic Polymeric Wastes

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特徴・独自性
  • The Yoshioka Laboratory works on the recycling of various polymers by thermal and wet processes. Plastics such as poly(ethylene terephthalate) (PET), polyvinyl chloride (PVC), and high impact polystyrene (HIPS) cause serious problems during their recycling for the recycling process and the environment. However, these materials can also be seen as a resource for new materials. The decarboxylation of PET results in high yields of benzene that can be used as a chemical feedstock. Another important feature is the dehalogenation of flame retarded plastics and PVC. Dechlorinated plastic waste can be an important source for hydrocarbons, which can be used as fuels and chemical feedstock. The chemical modification of PVC offers the possibility of new materials with new properties. Modified PVC can be used as antibacterial material or as a material with ion exchange properties. The removal of brominated flame retardants from HIPS leads to higher recovery rates of styrene during thermal processing. When a wet process is used, the resulting flame retardant free HIPS can be reused.
実用化イメージ

We are eager to help companies to overcome their problems during recycling and recovery, and provide solutions for the treatment of waste materials.

Researchers

Graduate School of Environmental Studies

Toshiaki Yoshioka

[High-pressure combustion]

Combustion and Atomization Technology in High-Pressure Gas Turbine Conditions

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特徴・独自性
  • Combustion is a complex phenomenon composed of multi-dimensional dynamics of temperature, concentration, velocity, and chemical reactions. Advanced combustion technologies are essential for solving the environmental and energy issues. Our laboratory has a high-pressure combustion test facility which is a unique experimental facility in the world. Research projects have originality, especially in the field of high-pressure combustion and laser diagnostics, and focus on not only aerospace engineering and energy engineering including new fuel technology but also atomization technology and safety operations of chemical plants mostly operated at high pressure.
実用化イメージ

Potential collaborations are in the research fields of aerospace propulsions, automobile engines, power generations and chemical plants, in terms of development of gas turbine combustors for various fuels, generation and control of fuel atomizers, laser diagnostics of combustion and safety design of chemical reactors.

Researchers

Institute of Fluid Science

Hideaki Kobayashi

[High-speed combustion]

Combustion and Atomization Technology in High-Pressure Gas Turbine Conditions

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特徴・独自性
  • Combustion is a complex phenomenon composed of multi-dimensional dynamics of temperature, concentration, velocity, and chemical reactions. Advanced combustion technologies are essential for solving the environmental and energy issues. Our laboratory has a high-pressure combustion test facility which is a unique experimental facility in the world. Research projects have originality, especially in the field of high-pressure combustion and laser diagnostics, and focus on not only aerospace engineering and energy engineering including new fuel technology but also atomization technology and safety operations of chemical plants mostly operated at high pressure.
実用化イメージ

Potential collaborations are in the research fields of aerospace propulsions, automobile engines, power generations and chemical plants, in terms of development of gas turbine combustors for various fuels, generation and control of fuel atomizers, laser diagnostics of combustion and safety design of chemical reactors.

Researchers

Institute of Fluid Science

Hideaki Kobayashi

[High-Speed Projector]

High-Speed Vision for Real-Time Motion Analysis

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特徴・独自性
  • We are investigating high-speed vision systems that enable real-time image acquisition and visual processing at frame rates substantially higher than the standard video rate.
実用化イメージ

High-speed vision systems are useful for fast measurement and control of dynamic systems in general. When combined with external facilities such as high-speed projectors or acceleration sensors, they enable further wider applications including fast 3D measurement or object identification.

Researchers

Graduate School of Information Sciences

Shingo Kagami

[High-Speed Vision]

High-Speed Vision for Real-Time Motion Analysis

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特徴・独自性
  • We are investigating high-speed vision systems that enable real-time image acquisition and visual processing at frame rates substantially higher than the standard video rate.
実用化イメージ

High-speed vision systems are useful for fast measurement and control of dynamic systems in general. When combined with external facilities such as high-speed projectors or acceleration sensors, they enable further wider applications including fast 3D measurement or object identification.

Researchers

Graduate School of Information Sciences

Shingo Kagami

[high-temperature injury]

Methods to Restore Strelity of Gramineous Plants under High- and Low-Temperature Stress Conditions

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特徴・独自性
  • Plant reproductive development is more sensitive than vegetative growth to many environmental stresses. High-temperature injury is becoming an increasingly serious problem due to recent global warming. In wheat, barley, and other crops, the early phase of anther development is most susceptible to high temperature. Oppositely, grain yields in rice plants are often reduced by exposure to low temperature. Unexpected climate change, such as abnormally hot or cool summer temperatures, have occurred repeatedly during recent years. This method indicates that an appropriate use of specific phytohormones, such as auxin and GA, may promote stress tolerance and adaptation to abiotic stresses.
実用化イメージ

These potentially novel functions of the classical phytohormones will be important sustainable agriculture in the face of global climate change.

Researchers

Graduate School of Life Sciences

Atsushi Higashitani

[High-Water Content Sludge]

Development of Recycling Technology for High-Water Content Sludge by Using Fiber Materials

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特徴・独自性
  • The recycling rate of construction muds and sludge is very low because the water content of these muds is very high and direct reuse of them is very difficult. Therefore, a new recycling technology for high-water content sludge has been developed in this laboratory. This technology is called "Fiber-Cement-Stabilized Soil Method", and it uses fiber materials and cement. The main feature of this method is to mix the fiber materials with the sludge, and the fiber materials included in the soil produce several geotechnical merits.
実用化イメージ

The modified soils produced by this method can be used as ground materials for reinforced embankment of the river bank and soil structures because they have several features such as high failure strength, high failure strain high durability for drying and wetting and high dynamic strength.

Researchers

Graduate School of Environmental Studies

Hiroshi Takahashi

[HIV]

Development of the next generation anti-HIV agents

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特徴・独自性
  • HIV infection is one of most serious concern in infectious diseases. We will perform anti-HIV assays for unmet medical needs in control of HIV infections with established novel assays. We have developed reverse transcriptase inhibitor that has novel mechanism of inhibition, translocation-inhibition (J Biol Chem, 2009). Dr Kodama participated in the primary screening and development of a new HIV integrase inhibitor, elvitegravir (J Virol 2009), and a unique reverse transcriptase inhibitor, islatravir, which phase III clinical trials by the Merck & Co., Inc. will complete, soon. We have a representative resistant HIV strain-library for anti-HIV screening and several target oriented high through-put screening systems.
実用化イメージ

We can establish high through-put screening for new targets, so please consult with us individually. We are open to joint development requiring BSL3/P3 experimental facilities and academic guidance including other microorganisms.

Researchers

International Research Institute of Disaster Science

Eiichi Kodama

[Hormone]

Hormone Actions in Human Breast Carcinoma

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特徴・独自性
  • Breast cancer is one of the most common malignancies in women worldwide. Therefore, it is very important to investigate biological features of breast carcinoma in order to improve clinical outcome of the patients. It is well known that estrogens play important roles in the development of human breast carcinomas, and endocrine therapies are frequently used in these patients to block the intratumoral estrogen actions. In the Division of Pathology and Histotechnology, we analyze hormone actions in breast carcinoma by pathological methods as well as various molecular biological techniques.
実用化イメージ

It will be possible to newly develop diagnostic techniques regarding prediction of prognosis and/or effectiveness of treatment in breast cancer patients.

Researchers

Graduate School of Medicine

Takashi Suzuki