Tohoku University. Research Profiles

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"E" Keywords - 81 Result(s)

E

 e

[e-democracy]

Development of the e-voting system

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A purpose of this study is to make the environment where many Japaneses are easy to vote for, using ICT. In Japan, it is difficult to introduce the e-election system. This is because there is legitimate limitation. So we turn to case study to discover means to overcome the problem.

Targeted Application(s)/Industry

Graduate School of Infomation Sciences
KAWAMURA Kazunori, Associate Professor Master of Law

[e-learning]

Advanced Educational Environment with Interactive Instruction System IMPRESSION

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Features

IMPRESSION is an interactive instruction system for both face-to-face lesson and distance education.
It was designed to facilitate teachers to plan and perform effective and attractive lessons with various multimedia materials, and help to evaluate performed lessons and improve them based on the double loop instructional design process, which is focusing on interaction between a teacher and students.

Targeted Application(s)/Industry

It could be used to perform advanced education with multimedia materials in schools, and also to design and implement training for employees at branch offices.

Center for Information Technology in Education
MITSUISHI Takashi, Associate Professor PhD

[e-voting]

Development of the e-voting system

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Features

A purpose of this study is to make the environment where many Japaneses are easy to vote for, using ICT. In Japan, it is difficult to introduce the e-election system. This is because there is legitimate limitation. So we turn to case study to discover means to overcome the problem.

Targeted Application(s)/Industry

Graduate School of Infomation Sciences
KAWAMURA Kazunori, Associate Professor Master of Law

[ecological environment]

Exploring the change in fauna and flora from the results of the natural history of Tokugawa Japan

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The natural history as nomenclature and description flourished in the 18th and early 19th century in Western countries, while in Japan as an exception in non-Western world, a characteristic description system was developed in the same period. And thus vast information concerning the flora and fauna in Japan was collected and organized. We are to make use of the results of the natural history of Tokugawa Japan for the diachronic environmental Studies. Especially as for indicator species we extract and reclassify the reliable materials from the literature and documents of Edo era from the perspective of the current taxonomy. And we compare them carefully with the scientific achievements after Meiji era aiming to point out the environmental changes in Japan and its surrounding areas. For example, the drastic changes in some geese populations wintering in Japan correlate strongly with the damages to the environment given by the developments in Far Eastern Siberia by the Russian Empire and in the Kuril Islands by Japan. We are prepared to provide academic consultations to corporations interested in our research.

Graduate School of International Cultural Studies
SUZUKI Michio, Professor Ph.D.

[ecomaterial]

Development and Application of Hard Porous Carbon Materials RB Ceramics Made from Rice Bran

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We developed a hard porous carbon material, a RB ceramics, made from defatted rice bran. This is an effective use of the defatted rice bran after rice oil was extracted. The RB ceramics has low friction and high wear resistance without using any lubricants. We also succeeded in the development of resin composites filled with the RB ceramics particles, which exhibit low friction. On the other hand, we developed elastomeric composites filled with the RB ceramics particles as high friction materials.

Targeted Application(s)/Industry

We have conducted researches on development and applications of low-friction or high-friction materials in collaboration with many companies including small- and medium-sized enterprises, such as in industrial, sports engineering, health-care, welfare, and living-ware fields. We have successfully achieved more than 60 practical applications with the collaboration.

Graduate School of Engineering
HOKKIRIGAWA Kazuo, Professor Doctor of Engineering

[eduroam]

Network Roaming System with Flexible Access Control

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The laboratory works on development of authentication wireless LAN systems which refer user attribute to realize flexible access control capability.Improvement and evaluation of new access control is devised based on experience of operation of an international wireless lan roaming service ‘eduroam' which is based on 802.1x authorization protocol.

Targeted Application(s)/Industry

The development contains application of OpenFlow technology to select a connecting network depending on user affiliation, as well as access control based on pre-defined attribute information.

Cyberscience Center
SONE Hideaki, Professor PhD

[elderly people]

Development of Fall-Prevention Footwear Based on Mechanical Analysis of Slip-Related Falls

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Features

The number of fatalities due to falling accidents indoor/outdoor has increased in Japan as well as in other advanced countries. The fatalities due to falling accidents in a year have exceeded those due to traffic accidents in Japan recently. Because more than 80% of the fatalities are elderly people, it is considered an urgent issue to prevent their falling. We have conducted researches on falling during walking due to induced slip, in the contact interface of shoe sole and floor, through tribological and biomechanical approaches. We clarified the required values of static friction coefficient (figure 1), between shoe sole and floor, and how to gait to prevent slipping through kinetic analysis of gait. We also succeeded in the development of a unique footwear outsole having the high-grip property (figure 2) and high slip-resistant concrete pavement blocks (figure 3) through the collaboration with regional companies. We have recently conducted research and development of footwear that is able to prevent falls due to balance loss after slipping.

Targeted Application(s)/Industry

Products for fall prevention in daily life or in work site. Evaluation of slip resistance of footwear and floor materials.

Graduate School of Engineering
YAMAGUCHI Takeshi, Associate Professor Doctor of Engineering

[election management]

Development of the e-voting system

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Features

A purpose of this study is to make the environment where many Japaneses are easy to vote for, using ICT. In Japan, it is difficult to introduce the e-election system. This is because there is legitimate limitation. So we turn to case study to discover means to overcome the problem.

Targeted Application(s)/Industry

Graduate School of Infomation Sciences
KAWAMURA Kazunori, Associate Professor Master of Law

[electrochemistry]

Biological Application of Scanning Probe Microscope

Features

We have invented a unique method to non-invasively evaluate the quality of individual mammalian embryos based on oxygen consumption. A Pt microelectrode was scanned near the single embryo sample to obtain oxygen concentration profile. Respiration activity of single embryo was estimated based on spherical diffusion theory. Further, it was found that the respiration activities of individual embryos corresponded the developmental potential of the embryos. Independently, we have developed a procedure of mRNA quantification from single-cell based on SPM featuring multi-functional probes. Next, we are going to combine the two methods mentioned above for quality control of mammalian embryos and embryonic stem cells.

Targeted Application(s)/Industry

Our methods will be applied for assisted reprodictive technoloy (ART), pancreatic islet transplantation, or animal breeding.

Graduate School of Engineering
SHIKU Hitoshi, Professor Doctor of Engineering

 E

[Early diagnosis]

Functional and Molecular Imaging with Positron Emission Tomography (PET)

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Using positron emission tomography (PET), we can measure the regional metabolism, perfusion and signal transmission between neurotransmitters and receptors in various organ systems of living humans and animals, such as the brain and heart. Recent technical developments have shown that the mind, or at least some parts of it, can be demonstrated by "imaging".

Targeted Application(s)/Industry

Our group has had considerable achievements in clinical research on drug effects and side effects, elucidation of underlying mechanism of alternative and complementary therapies, as well as exercise physiology.

Cyclotron and Radioisotope Center
TASHIRO Manabu, Professor doctor of medical sciences

[Earth Observation]

Design and Development of 50 kg-class Micro Satellites

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We design and develop micro satellites in a format of 50 cm cubic size and 50 kg mass. We have developed the first and second micro satellites of Tohoku University, named “RISING” and “RISING-2”, launched by using JAXA’s H-IIA rocket vehicle in January 2009 and May 2014, respectively. Both satellites are operated from our ground station in the university. Particularly, RISING-2 has succeeded in capturing high precision color images of the Earth's surface at a spatial resolution of 5m, the highest in the world among 50kg-class satellites. Now the third micro satellite for international science mission is under the development. In addition, we are active in nano satellite development. The first nano-sat “RAIKO” in a 10 by 10 by 20 cm format was launched from the International Space Station in 2012. More nano-sats are under the development.

Targeted Application(s)/Industry

We would like to make innovation in space business by introducing a new paradigm for rapid and low cost development of space systems for various missions of remote sensing, earth observation, and space exploration. We have rich experience in the development of spacecraft bus systems, onboard avionics systems and mission instruments. Collaborations with technology and business partners are welcome.

Department of Aerospace Engineering, Graduate School of Engineering
YOSHIDA Kazuya, Professor Doctor of Engineering

[Ecology]

Mathematical Biology

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Principal subject of our study is the mathematical model analysis to make clear or present the point at issue for scientific discussion about real biological/social phenomena, or to promote the advanced theoretical research: what theoretical problem about target phenomenon is treated, how the problem is mathematically modeled, what mathematical analysis is applied for the model, and how the mathematical result is lead to the discussion in biological/social science.

Targeted Application(s)/Industry

Graduate School of Information Sciences
SENO Hiromi, Professor Doctor of Science

[Eddy Current Testing]

Electromagnetic Nondestructive Inspection System for Complicated Structures

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We develop sensing technologies, intelligent materials and evaluation technologies of materials for the optimization of maintenance for massive complex system such as energy plants. We work for electromagnetic nondestructive testing and monitoriing for complicated structures. We also develop the method for characterization of material degradation.

Targeted Application(s)/Industry

We want to work together with industries who are interested in nondestructive testing and material evaluation using applied electromagnetic methods.

Tohoku Forum for Creativity
TAKAGI Toshiyuki, Professor Doctor of Engineering

[Effective Utilization of Mineral & Energy Resources]

Advanced Recycling Process and Development of Environmental Preservation Technologies

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A large amount of resources are utilized in the base metal production processes such as iron & steel, copper and zinc. Therefore, it is important to improve such process efficiencies for solving the energy and environmental issues. On the other hand, the increasing production in developing countries leads to the depletion of high-grade resources. In this laboratory, basic researches for integrated processes from pretreatment, metal manufacturing, refining and recycling are made for the development of new processes with high efficiency and low environmental load by utilizing "low-grade" resources.

Targeted Application(s)/Industry

Iron & steel making and nonferrous industries, development of efficient utilization processes of biomass and organic waste energies

Graduate School of Environmental Studies
KASAI Eiki, Professor Doctor of Engineering

[Electric conduction]

Oxide Electronics

Features

Our research group investigates creation of functional oxides and their functionalities. We synthesize thin films by pulsed laser deposition and sputtering methods and bulk specimens, and develop their novel synthetic routes. Recently, we are studying electrically conducting rare earth oxides, transparent room temperature ferromagnetic semiconductors, and layered superconductors with monatomic Bi layer. We will develop our materials design by extending materials range and performing oxide heteroepitaxy.

Targeted Application(s)/Industry

Collaborative research in fields of oxide electronics with novel electric conducting oxides and oxide spintronics with ferromagnetic semiconductors and novel ferromagnetic oxides.

Advanced Institute for Materials Research
FUKUMURA Tomoteru, Professor Doctor of Engineering

[Electric vehicle]

Research on High Performance Motor and its Applications

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Electric motors are essential devices in all areas such as industrial, traffic and civilian use. The demand of the electric motors is rising each year. In order to realize a high performance electric motor, we study the following items:
1. Development of a motor simulation method for accurate and fast calculation.
2. Considerations on an optimum control method of motors.
3. Application of the electric motor to an electric vehicle.
4. Regeneration and application of rotating mechanical energy.
The features of our study are a simulation method based on magnetic circuit model, SR motor without permanent magnet, and in wheel direct drive electric vehicle.

Targeted Application(s)/Industry

As we have basic skill for a magnetic field analysis, electric and electronic circuit analysis and control technic, our targeted applications are improvement of permanent magnet motor, SR motor and its applications to an electric vehicle and various mobilities. Small size generator is also our targeted application.

Graduate School of Engneering
ICHINOKURA Osamu, Professor Doctor of Enginering

[Electrical conductivity]

Development of High Performance Carbon Nanotube-Alumina Composite

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One of the important challenges in the development of carbon nanotubes (CNTs) reinforced ceramic composites is uniform dispersion of CNTs in the matrix. The mechanical properties of CNT/ceramics composites have been limited to date due to the formation of CNT agglomerates in the composite. We have successfully produced CNT/alumina composites with world top class strength and toughness, by employing a newly developed CNTs dispersion technique based on a flocculation method. The processing method developed in this study enables us to prepare high performance CNT materials using a pressureless sintering method.

Targeted Application(s)/Industry

The possible applications of the CNT/alumina composites developed in this study include tribological materials (ball bearing), biomaterials (artificial hip joint), micro-actuator materials utilizing electrostrictive effects, electromagnetic wave absorber, particularly in the frequency range of several GHz and several ten GHz.

Graduate School of Engineering
HASHIDA Toshiyuki, Professor Doctor of Engineering

[Electro conductivity]

Polymer-nanoparticle hybrid materials

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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.

Targeted Application(s)/Industry

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.

Advanced Institute for Materials Research
ADSCHIRI Tadafumi, Professor Doctor of Engineering

[Electro-catalysts]

Surface scientific approach for developments in fuel cell's catalysts

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From catalytic perspective, molecular-level understanding of surface phenomena occurring at nano-sized metal (alloy) particle surfaces is a key for developing highly active and durable catalysts. Our experimental approach for studying catalysis is preparations of well-defined metals or alloy surfaces by using ultra-high vacuum (UHV) and molecular-beam-epitaxy (MBE) techniques. We routinely use UHV-MBE, surface vibrational spectroscopy (IR, Raman), scanning probe microscopy (SPM), electron spectroscopy (XPS), electrochemical (EC) voltammetry, gas-chromatography (GC) etc., and try to clarify the solid surface phenomena on atomic, molecular-levels. We believe our research results directly link to future eco-friendly society.

Targeted Application(s)/Industry

Graduate School of Environmental Studies
WADAYAMA Toshimasa, Professor Doctor of Engineering

[Electrochemical Surface Forces Apparatus]

Development of Nano-Interface Chemistry for Materials Sciences Using Surface Forces Measurement

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Our research aims at developing methods, including instrumentation, for characterizing surface (or interface) at the nano-meter level. Most of our research subjects are related to the surface forces measurement, which can directly monitor the interaction between two surfaces. We study phenomena occurring at the solid-liquid interface such as adsorption and structuring of liquids. We have developed the resonance shear measurement which is a sensitive method for evaluating properties of confined liquid for nano-rheology and tribology. Twin-path surface forces apparatus we developed enabled us to study wide variety of samples such as metals, ceramics and plastics.

Targeted Application(s)/Industry

These methods are applicable for characterizing lubricants, nano-materials, paints, sealants, and cosmetics. We hope to conduct collaborative research with a willing company for a practical application of this technology in industry.

Institute of Multidisciplinary Research for Advanced Materials
KURIHARA Kazue, Professor Doctor of Engineering