A5079842025- Optimization and Search Problems
- Distributed systems and fault tolerance
- High-pressure geophysics and materials
- Modular Robots and Swarm Intelligence
- Network Packet Processing and Optimization
- Material Dynamics and Properties
- Mobile Ad Hoc Networks
- Chemical Thermodynamics and Molecular Structure
- Network Security and Intrusion Detection
- Glass properties and applications
- Energy Efficient Wireless Sensor Networks
- Phase-change materials and chalcogenides
- Interconnection Networks and Systems
- Blood Coagulation and Thrombosis Mechanisms
- Robotic Path Planning Algorithms
- Crystal Structures and Properties
- Distributed Control Multi-Agent Systems
- Mobile Agent-Based Network Management
- Transcranial Magnetic Stimulation Studies
- Lipoproteins and Cardiovascular Health
- Diabetes, Cardiovascular Risks, and Lipoproteins
- Internet Traffic Analysis and Secure E-voting
- Software System Performance and Reliability
- Distributed and Parallel Computing Systems
- Vitamin K Research Studies
Nagoya Institute of Technology
2015-2024
Toyohashi University of Technology
2021
National Institutes for Quantum Science and Technology
2019
Japan Atomic Energy Agency
2006-2015
SPring-8
1998-2015
Kyushu University
2009-2013
Toshiba (Japan)
1998-2013
Japan Synchrotron Radiation Research Institute
2006-2010
Shiga University of Medical Science
2009
Toshiba (South Korea)
2005
The ATP-dependent Clp protease of Escherichia coli contains two dissimilar components: the A regulatory polypeptide, with ATP binding sites and intrinsic ATPase activity, P subunit, which proteolytic active site. DNA sequence clpP gene predicts a protein 207 amino acids (Mr 21,679), is in close agreement size determined by sodium dodecyl sulfate-gel electrophoresis purified P. has native Mr approximately 240,000, electron micrographs show superimposed disk-like structures central cavity,...
attB bio936 A(Sal-Xho) Ad857 AH1 a Derived from SG1094.* Tetracycline-resistant derivatives were selected as described previously (10,351.ends of transposon TnIO.ATnlO is defective lacking the transposase (34).Akan gene and carrying for kanamycin resistance SG20250.
Anonymous mobile robots are often classified into synchronous, semi-synchronous, and asynchronous when discussing the pattern formation problem. For semi-synchronous robots, all patterns formable with memory also without memory, single exception of forming a point (i.e., gathering) by two robots. (All for synchronous little is known robots.) However, gathering problem (called oblivious in this paper) trivially solvable their local coordinate systems consistent, impossibility proof...
Research on wireless sensor network (WSN) has increased tremendously throughout the years. In WSN, nodes are deployed to operate autonomously in remote environments. Depending orientation, WSN can be of two types: flat and hierarchical or cluster-based network. Various advantages energy efficiency, better communication, efficient topology management, minimized delay, so forth. Consequently, clustering become a key research area WSN. Different approaches for using cluster concepts, have been...
We demonstrate that , the material of choice in phase-change optical recording (such as DVD-RAM), can be rendered amorphous by application hydrostatic pressure. It is argued this structural change due to a very strong second-nearest-neighbor Te-Te interaction determines long-range order metastable cubic phase and also presence vacancies. This newly discovered phenomenon suggests pressure an important factor for formation which opens new insight into mechanism recording.
We study high-pressure polyamorphism of B2O3 glass using x-ray diffraction up to 10 GPa in the 300-700 K temperature range, situ volumetric measurements 9 GPa, and first-principles simulations. Under pressure, undergoes two-stage transformations including a gradual increase first B-O (O-B) coordination numbers above 5 GPa. The fraction boron atoms fourfold-coordinated state at P<10 is smaller than was assumed from inelastic scattering spectroscopy data, but considerably larger previously...
The pressure-temperature diagram of hydrogen-aluminum system was determined for a pressure range 0–10GPa and temperature 27–800°C by in situ x-ray diffraction measurements. Pristine aluminum hydrogenated to trihydride at 8.9GPa 600°C. cyclic formation decomposition the hydride resulted lowering hydrogenation conditions down 4.9GPa 330°C. Transparent single crystals were recovered ambient conditions.
Using two different high-pressure techniques, we have prepared boron-doped diamonds with atomic concentration of the dopant ranging from 0.04% to 4% (from $7\ifmmode\times\else\texttimes\fi{}{10}^{19}$ $7\ifmmode\times\else\texttimes\fi{}{10}^{21}\phantom{\rule{0.3em}{0ex}}\mathrm{atom}∕{\mathrm{cm}}^{3}$) and studied lattice constants thermal expansion in temperature range 90 $300\phantom{\rule{0.3em}{0ex}}\mathrm{K}$. Both sets samples demonstrate same increasing dependence parameter...
Liquid B2O3 represents an archetypical oxide melt with a superhigh viscosity at the melting temperature. We present results of in situ x-ray diffraction study and measurements liquid under high pressure up to 8 GPa. Additionally, 11B solid state NMR spectroscopy glasses quenched from five different pressures has been carried out. Taken together, obtained provide understanding nature structural transformations B2O3. The fraction boroxol rings structure rapidly decreases pressure. From about...
The density of carbonated peridotite magma was measured up to 3.8 GPa and 2100 K using an X-ray absorption method. A fit the pressure-density-temperature data high-temperature Birch-Murnaghan equation state yielded isothermal bulk modulus, KT0 = 22.9 ± 1.4 GPa, its pressure derivative, K0′ 7.4 1.4, temperature derivative modulus (∂KT/∂T)P -0.006 0.002 GPa/K at 1800 K. is larger than that hydrous magma. partial molar volume CO2 in under high conditions calculated Vinet state. 8.1 1.7GPa, 7.2...
The friction stir welding (FSW) has been used widely in the field of industry. Numerical analysis models for FSW also have developed and there are many papers about it. In these papers, most frequently method is finite element or difference method. However, by employing methods, it difficult troublesome to calculate advective term both momentum temperature. It big deformation material. Moreover, complex process required analyse dissimilar joining with respect dealing substance transfer. this...
Abstract A new affinity method for quantification of glycated albumin by an enzyme-linked boronate-immunoassay (ELBIA) has been established, based on the interaction between boronic acids and cis-diols human serum (HSA) trapped anti-HSA antibody. To evaluate ELBIA, we first examined accuracy conventional boronate chromatographic (BAC) method. In BAC method, 8.1–18.9% nonglycated calibrator nonspecifically bound to column, values that were regarded as column blank. modified therefore,...
The authors have measured EXAFS spectra of liquid(1-)Se, Te, Se-Te mixtures and vapour (v-)Se for the first time. It is clearly observed that two-fold coordinated chain structure largely preserved in l-Se intrachain covalent bond contracts on melting. l-Te can be reproduced well by assuming a with shorter longer bonds within chain. In order to obtain partial structure-parameters liquid mixtures, are taken both Se Te K edges. Se-Se elongates increasing concentration. number Te-Te increases...
An in situ high-temperature---high-pressure study of liquid chalcogenide AsS by x-ray diffraction, resistivity measurements, and quenching from melt is presented. The obtained data provide direct evidence for the existence under compression two transformations: one a moderate-viscosity molecular to high-viscosity nonmetallic polymerized at $P\ensuremath{\sim}1.6--2.2\text{ }\text{ }\mathrm{GPa}$; other latter low-viscosity metallic $P\ensuremath{\sim}4.6--4.8\text{ }\mathrm{GPa}$. Upon rapid...
The density of liquid iron sulfide (FeS) was measured up to 3.8 GPa and 1800 K using an X-ray absorption method. compression curve FeS fitted the Vinet equation state. isothermal bulk modulus its temperature pressure derivatives were determined a nonlinear least-squares fit. parameter sets were: K0T = 2.5 ± 0.3 at T 1500 K, (dK0/dT)P -0.0036 0.0003 GPa/K, (dK0/dP)T 24 2. These results suggest that is more compressible than Fe-rich Fe-S.
The structure of liquid gallium has been studied along the melting curve from 0.64 to 5.6 GPa by energy dispersive x-ray diffraction technique, followed modeling experimental data reverse Monte Carlo (RMC) method. RMC models were constrained experimentally obtained equation states Ga and in good accordance with data. Analysis factor $S(Q)$ radial distribution function $g(r)$ shows that anisotropic local deviates a simple hard-sphere-like metal structure. Whereas third fourth coordination...
Hydrogenation conditions of passivated aluminum were examined in a pressure and temperature range 6–10 GPa 300–800 °C, respectively. The relationship between the hydrogenation reaction yields holding time was analyzed by Johnson–Mehl–Avrami equation. An Avrami exponent n 0.3 indicated that decreased with due to low diffusivity hydrogen AlH3. oxide layer on seemed be partly removed or modified pressure-temperature treatment above 6 600 °C fluid. 9 for reduced GPa.