Tohoku University. Research Profiles

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"S" Keywords - 167 Result(s)

S

 S

[Stereoscopic Display]

Interactive Content to Enrich Our Lives

Features

(1) Displays and Interactive Techniques
Designing original display systems to show visual information accurately and effectively, and interaction techniques to make better use of these display systems.

(2) Interactive Video Content
Creating new interactive content from real video taken by cameras and computer-generated animations.

(3) Modeling and Controlling the “Atmosphere” in a Conversation Space
Aiming to stimulate the “atmosphere” in a conversation space by supplying real-time feedback to the users, we are exploring means of sensing and analyzing change in the space.

(4) Designing and Evaluating Novel Interaction Techniques
Designing and evaluating novel interaction techniques on target selection for variety types of displays including large and touch displays.

Targeted Application(s)/Industry

Research Institute of Electrical Communication
KITAMURA, Yoshifumi, Professor Doctor of Engineering

[Sterilization]

Development of next-generation sterilization method by a plasma flow at atmospheric pressure

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Features

Plasma sterilization has been developed as an alternative sterilization method due to its chemical activity, operation at low temperature and atmospheric pressure, low power consumption, low cost and safety. We have studied a mechanism of chemical species generation and transport in a plasma flow and, the sterilization efficacy and mechanism for several plasma sources at atmospheric pressure, such as a microwave plasma flow, a dielectric barrier discharge in a tube and a water vapor plasma flow. We already clarified that the damages of outer membrane and destructions of the cytoplasmic membrane of Escherichia coli by exposure to the microwave plasma flow. Fig. 1 shows the effect of plasma exposure on the E. coli. When the E. coli was exposed to the plasma, the height of the E. coli decreased and the potassium leakage of cytoplasmic material increased. For sterilization in a tube, we also clarified that an induced flow in the narrow tube by DBD transports chemical species and sterilize the whole inside surface of a tube as shown in Fig. 2. We hope to conduct collaborative research with a willing company for a practical application of this technology in industry.

Institute of Fluid Science
SATO, Takehiko, Professor Doctor of Engineering

[Steroid]

Hormone Actions in Human Breast Carcinoma

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Features

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.

Targeted Application(s)/Industry

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

Pathology and Histotechnology, Graduate School of Medicine
SUZUKI, Takashi, Professor MD, PhD

[Streaming]

Internet video streams have identities like fingerprints

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According to recent studies, each video that is streamed online has its own unique characteristic. The pattern of data that are sent through the network can vary from one encoding method to another and the change from scene to scene, which is a unique characteristic of each video. This research aims to identify video content in the network without looking at the data itself.

Targeted Application(s)/Industry

This research would be especially useful in preventing illegal distribution of television program such as illegal channel without violating user privacy. Another application would be to prevent confidential online meeting from leaking outside local enterprise network. In addition, it is also possible to investigate the circulation of a video content using method introduced by this work.

Graduate School of Information Sciences
KATO, Nei, Professor Doctor of Engineering

[Stress Corrosion Crack]

Fabrication of Imitative Stress Corrosion Cracking Specimens for the Development of Nondestructive Evaluation Techniques

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Features

The emergence of stress corrosion cracking is one of the most important issues from the viewpoint of aging management and maintenance of nuclear power plants. There is a large discrepancy between stress corrosion cracking and other cracks such as fatigue cracks from the viewpoint of nondestructive testing and evaluations, which requires suitable specimens containing stress corrosion cracking for the development of nondestructive testing and evaluation techniques and also for personnel training. However, artificially introducing stress corrosion cracking needs large cost and long time. Furthermore, several studies have pointed out that such articial stress corrosion cracking is not always similar to natural ones. On the basis of the background above, we develop a method to fabricate "imitative" stress corrosion cracking specimens using diffusion bonding.

Targeted Application(s)/Industry

The method enables one to introduce a region whose response is almost identical to actual stress corrosion cracking from the viewpoint of nondestructive testing. Whereas the dimension of the region is accurately controllable, the method requires much less cost and time comparing the conventional ones using corrosive environment. Patent is already applied for.

Department of Quantum Science and Energy Engineering , Graduate School of Engineering
YUSA, Noritaka, Associate Professor Doctor of Engineering

[Structural color]

3 Dimensional Nano Imprint

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Features

More and more sub-micron-meter periodic microstructures with nano order shape accuracy and ultra-fine surface are found to have special unique properties (optical, mechanical, and thermal properties). This research concentrates on mechanical machining of the mold for 3D nano imprint of functional interface, which provides a way to discover the unique properties of microstructures experimentally. Furthermore, as a new glass molding process, an ultrasonic assisted molding, nonisothermal molding, and their combination were proposed to form complex 3D microstructures on glass surface at high efficiency.

・ Strong Collaboration among Industry, Academia and Government
We believe that greater importance will be attached to cooperation among academic institutions and between academia and government in research, with the results being put to practical use through joint projects between academia and industry. The fundamental mission of our research group is to encourage joint research in industry. In addition, we frequently provide consultation regarding technological problems in various companies.

Graduate School of Biomedical Engineering
KURIYAGAWA, Tsunemoto, Professor PhD (Engineering)

[Structure-activity relationship]

Exploration of Innate Immune Regulators

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Features

Innate immunity is the first line of defense against infectious microorganisms, and the basic mechanisms of this process, including pathogen recognition and immune response activation, are evolutionarily conserved. To screen pharmaceuticals that target innate immunity, we established an ex vivo culture system based on the innate immune response of Drosophila, which is highly useful for identifying immune regulators that act on human innate immunity. We use this system to search for compounds that regulate innate immunity.

Targeted Application(s)/Industry

Innate immunity is a good target for the development of immune regulators to suppress unwanted immune responses, such as septic shock, inflammatory diseases and autoimmunity.

Graduate School of Pharmaceutical Sciences
KIKUCHI, Haruhisa, Associate Professor

[Suatainability]

Integrated Design for Sustainable Energy Systems

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Features

The concept of LCS (low carbon society) is a unique approach having multi-dimensional considerations such as social, economic and environmental dimensions. The LCS aims at an extensive restructuring of worldwide energy supply/demand network system by not only replacing the conventional parts with the new ones, but also integrating all the necessary components and designing absolutely different energy networks. An energy-economic model is a tool for decision making for a variety of purposes, such as energy security planning, climate policy analysis, and technology innovation assessment.

Targeted Application(s)/Industry

Applying this model derives political measures, such as investment in R&D. It is also useful for guiding development policies under the concept of sustainability. In finding suitable energy-economic models for specific purposes, it is important to apply an adequate tool to consider geographical regions in focus, time horizon, energy classification, and economic parameters.

Department of Management Science and Technology , Graduate School of Engineering
NAKATA, Toshihiko, Professor Doctor of Engineering

[Super Capacitor]

Advanced Functional Materials and Nanotechnology for Post-Lithium ion Battery

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Features

Monoatomic layered materials of Graphene, Transition metal sulfide nanosheet, nanocrystalline active materials, nanoparticles and nanoporous materials are investigated for realizing high capacity, high power, high safety and low cost energy storage devices as a post- Lithium ion battery. Advanced chemistry of functional materials and device processes for All solid state battery, Magnesium battery, fuel cells, supercapacitor and wearable batteries are investigated.

Targeted Application(s)/Industry

Academia – Industry collaboration with manufacturing companies of functional materials, batteries, and also smart grid, renewable energy, electrical power companies are encouraged for developments of advanced energy materials and post-Lithium ion battery.


Institute of Multidisciplinary Research for Advanced Materials
HONMA, Itaru, Professor Doctor of Engineering

[Superalloy]

Precipitation Hardened Co-based Alloy

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Features

The high-temperature strength in Co-based alloys is inferior to that in Ni-based superalloys due to no available ’ phase for strengthening Co-based alloys. We have found a new intermetallic compound Co3(Al,W) ’ phase, and /’ Co-Al-W-based wrought and cast alloys show excellent high-temperature strength. The /’ Ir-Al-W-based alloys are also available for high-temperature uses at over 1100 °C. The Co-based alloys also have good wear resistance. For example, friction stir welding (FSW) of high-softening-temperature materials such as steels and titanium alloys is possible using a Co-based alloy tool. We hope to conduct collaborative research with willing company for a practical application of the Co- or Ir-based alloys for high-temperature uses including FSW applications.

Department of Metallurgy, Graduate School of Engineering
OMORI, Toshihiro, Associate Professor Ph.D.

[Supercomputer]

Supercomputing for enabling large-scale advanced simulations

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Features

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.

Targeted Application(s)/Industry

Cyberscience Center
TAKIZAWA, Hiroyuki, Professor Doctor of Information Science

 s

[strengeness nuclear physics]

Experimental Nuclear Physics

Features

1) Study of strangeness nuclear physics and hypernuclei with high energy electron/photon beams

2)加速器研究施設で収集される大量のデータ解析技術、
  荷電粒子、高エネルギー光子の測定技術、

Targeted Application(s)/Industry

Department of Physics, Graduate School of Science
NAKAMURA, Satoshi N., Professor Doctor of Science

[strength]

Advanced Control of Microstructure and Property of Structural Metallic Materials

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Features

Microstructure represents various kinds of heterogeneities in the metallic materials, i.e., grains, component phase, lattice defects and chemical inhomogeneity such as impurity/alloying elements. It can be modified through control of phase transformation/precipitation and deformation/recrystallization by adjusting compositions of materials and/or through processing routes (heat treatment, deformation). Such expertise in micro/nanostructure control is very important in production of current materials from viewpoints of energy saving and recycling in structural materials such as steels and titanium alloys.
We attempt to apply more advanced control of micro/nanostructures, such as atomic structures of crystalline interfaces, chemistory in an atomic scale (e.g., segregation) and so on. Fundamentals of microstructure formation (thermodynamics, kinetics, crystallography) are examined both theoretically and experimentally to clarify key factors for microstructure control. Another important aspect in our research is the improvement of mechanical property by microstructure manipulation.

Targeted Application(s)/Industry

Possibilities to establish new functions (e.g., superplasticity, shape memory/superelasticity) as well as superior mechanical properties (e.g., ultrahigh strength with high toughness/ductility) is also explored.

Institute for Materials Research
FURUHARA, Tadashi, Professor PhD

[stress]

The Novel Ultrasound Irradiation Device

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Features

Dr. Katsunori Nonogaki has developed the novel ultrasound irradiation device, which can improve the autonomic nervous system activity and peripheral circulation. In addition, the ultrasoud device can improve hypertension and hyperglycemia within 20 min in subjects with drug-resistant hypertension and diabetes. Our initial device was approved in Japan (226AIBZX00028000). This device will be avaliable for the treatment of 1) muscle pain, 2) the autonomic neural dysfunction and stress-related disorders, 3) hypertention, and 4) diabetes. Moreover, the device will be usefull for your healthy life and aging care.

Targeted Application(s)/Industry

Our aims are to export the device internationally. We seek the investment and international business partners.

Department of Diabetes Technology, Graduate School of Biomedical Engineering
NONOGAKI, Katsunori, Professor MD, PhD

[stress assessment]

Project “The Mirror Magical”: Remote and Non-Contact Extraction of Biological Information

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Features

We engage in development of a cyber-medical system, “The Mirror Magical” for taking a medical check-up anytime and anywhere by use of information and communication technology (ICT). We only have to stand still in front of the mirror to check our autonomic nervous function related to baroreflex on the basis of video signals capable of remote and non-contact measurement. Demonstration experiments have been held to verify the validity of the system in estimation of blood pressure variability and the effects of physical exercise.

Targeted Application(s)/Industry

We can conduct effective collaborative research using the system not only in medical and welfare fields but also for application to smartphones, automobiles, emotion recognition robots, security cameras, sports broadcast and so on.

Research Division on Advanced Information Technology, Cyberscience Center
YOSHIZAWA, Makoto, Professor Doctor of Engineering

[stress corrosion cracking]

Suppression of Intergranular Degradation of Polycrystalline Materials by Grain Boundary Engineering

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Features

Intergranular degradation often results in decreased lifetime, reliability and economical efficiency of polycrystalline materials. In spite of persistent efforts to prevent such degradation, its complete suppression has not yet been achieved. Grain boundary studies have revealed that coincidence-site-lattice (CSL) boundaries have stronger resistance to intergranular degradations than random boundaries. The concept of ‘grain boundary design and control' has been refined as grain boundary engineering (GBE). GBEed materials which are characterized by high frequencies of CSL boundaries are resistant to intergranular degradations. Our group has achieved very high frequencies of CSL boundaries in commercial stainless steels by GBE. GBEed stainless steels showed significantly stronger resistance to intergranular corrosion (see Figs. 1 and 2), weld-decay, knife-line attack, stress corrosion cracking, liquid-metal embrittlement, radiation damage, etc. and much longer creep life (see Fig. 3) than the unGBEed ones.

Targeted Application(s)/Industry

By using this GBE processing, we expect to conduct effective collaborative research in related fields.

Department of Materials Processing, Graduate School of Engineering
SATO, Yutaka, Professor Ph.D.

[stroke]

Mechanism of Restoration and Rehabilitative Treatment of Movement Disorders

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Features

Our investigation aims to develop rehabilitative treatment for movement disorders due to brain damage using non-invasive brain stimulation (NIBS) such as transcranial magnetic stimulation (TMS), and transcranial direct current stimulation (tDCS). TMS, eddy current stimulation, and tDCS (1-5 mA, 10 minutes) both can modulate excitability of the cerebral cortex, and are applicable for restoration of limb paresis. We focus on modulating body scheme to induce appropriate adaptive changes of the central nervous system using NIBS.

Targeted Application(s)/Industry

Our goal is to develop therapeutic systems for movement disorders in which NIBS devices are combined with robotics or sensors. We would like to collaborate with companies for developing, manufacturing, and selling innovative medical devices.

Department of Physical Medicine and Rehabilitation, Graduate School of Biomedical Engineering
IZUMI, Shin-ichi, Professor PhD

[submarine survey]

Role of Volatiles on Petit-Spot Volcanoes

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The new kind of volcanoes, petit-spot, are located off NE Japan and Chile. They erupt at a submarine portion to be far from tectonic plate boundaries (e.g., mid-oceanic ridges and volcanic arcs) of the usual sites of volcanoes, earthquakes, and related geologic activity. The magmas have extremely high carbon dioxide and possibly originate from the base of tectonic plate.

Targeted Application(s)/Industry

The magma is squeezed upward and erupts in deep submarine environment wherever the tectonic plate flexes and fractures in the world. Collaborating work with business community would be required in order to search the submarine volcanoes and their related mines.

Center for Northeast Asian Studies
HIRANO, Naoto, Associate Professor PhD

[subtle energy]

Integrative Health and Human Subtle Energy

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Features

“Qi” is a fundamental concept in Chinese medicine. “Reiki” is a Japanese concept of Qi energy. Reiki is well known in Europe and America. For example, Brigham and Women’s Hospital (Harvard Medical School) has a certification system of Hospital Reiki Practitioner. We are thinking to use these subtle energies in the field of Integrative Health.

Targeted Application(s)/Industry

At first, technique to detect subtle energy through skin sensor can be offered. Then, cooperative work will start to develop detector of subtle energy. Our final purpose is to use subtle energy in daily life.

Music and Acoustical Medicine, Graduate School of Medicine
ICHIE, Masayoshi, Professor M.D., Ph.D.

[super vitaminE]

Selective recovery of tocotrienol from vegetable oils using ion-exchange resins

Features

Tocotrienol, one of vitamin E, has recovered by the conventional method with molecular distillation from deodrizer distillate discharged from the oil refining processes. However, tocotrienol easily loses its activity due to its low thermal stability, so that its recovery ratio and purity were extremely low. We proposed a novel method to selectively recover tocotrienol by adsorption/desorption using anion-exchange resin at 50 degree C. Tocotrienol is retained on the resin by ion-exchange reaction, and then released and recoverd from the resin by other ion-exchange reaction. Prior to the adsorption/desorption, free fatty acid, a major component of the feed, should be removed by esterification using cation-exchange resin at 50 degree C.

Targeted Application(s)/Industry

This innovative technology succeeds in solving the serious problems in the current tocotrienol production, the large weight loss due to the thermal decomposition and large amount of remaining impurities. This technology applies to the production of not only tocotrienol but also tocopherol as bioactive compounds s in food chemicals.

Graduate School of Engineering
SHIBASAKI-KITAKAWA, Naomi, Professor Doctor of Engineering