A5102825323- Graphene research and applications
- Surface and Thin Film Phenomena
- Laser-Plasma Interactions and Diagnostics
- Electron and X-Ray Spectroscopy Techniques
- Laser-induced spectroscopy and plasma
- Carbon Nanotubes in Composites
- Semiconductor materials and devices
- Advanced Chemical Physics Studies
- Fusion materials and technologies
- Aluminum Alloys Composites Properties
- Aluminum Alloy Microstructure Properties
- Anodic Oxide Films and Nanostructures
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Semiconductor materials and interfaces
- Gallbladder and Bile Duct Disorders
- GaN-based semiconductor devices and materials
- Magnetic and transport properties of perovskites and related materials
- Cellular and Composite Structures
- Nanofabrication and Lithography Techniques
- nanoparticles nucleation surface interactions
- Plasma and Flow Control in Aerodynamics
- Fluid Dynamics and Turbulent Flows
- Chemical and Physical Properties of Materials
- Optical Network Technologies
Kyoto Prefectural University of Medicine
1978-2024
Tokyo Metropolitan Komagome Hospital
2023-2024
National Center For Child Health and Development
2024
Toyota Memorial Hospital
2024
Jeonbuk National University
2023
Tokyo Women's Medical University
2023
Kyung Hee University
2023
Tokyo University of Science
2011-2022
JEOL (Japan)
2018-2022
Tochigi Medical Center
2022
Real-time cross-sectional echocardiographic studies revealed the presence of coronary artery aneurysms in five patients with mucocutaneous lymph node syndrome. These lesions appeared as circular echo-free spaces clearly-defined borders sites corresponding to angiographically proven aneurysms. In 15 normal subjects who were studied only by noninvasive methods, and 17 had arteriograms (including eight syndrome), we found no similar echo findings. The both right left arteries three patients,...
Electron-density analyses of tetragonal and cubic 0.4 PbTiO3-0.6 BiFeO3 (PTBF) have indicated that the (Bi,Pb)-O bond in PTBF exhibits strong covalency compared with phase. Compared Pb−O, Bi−O stronger covalency, which would be a key factor extremely large tetragonality high TC PTBF.
Hypertension is associated with endothelial dysfunction and activated Rho-associated kinases (ROCKs). The purpose of this study was to evaluate the effects selective mineralocorticoid receptor blocker, eplerenone, on function ROCK activity in patients hypertension. carried out over 48 weeks 60 untreated hypertension who were randomly assigned nifedipine, losartan groups. We evaluated each treatment flow-mediated vasodilation (FMD) peripheral leukocytes. Eplerenone increased FMD decreased...
Abstract Background and objectives Mean survival time (MST) is used as the indicator of prognosis in patients with a colorectal cancer (CRC) recurrence. The present study aimed to visualize changes death risk after CRC recurrence using hazard function analysis (HFA) provide an alternative prognostic MST. Methods medical records 725 consecutive following R0 radical surgery for were retrospectively reviewed. Results five-year, post-recurrence rate was 37.8%, MST 3.5 years while peaked at 2.9...
The development of 31P-nuclear magnetic resonance (NMR) has enabled direct and non-invasive measurements muscle metabolism. Serial the phosphocreatine/inorganic phosphate (PCr/Pi) ratio, which is closely related to adenosine triphosphate/adenosine diphosphate (ATP/ADP) ratio pH during after forearm exercise were performed in 11 patients with chronic lung disease (CLD), nine heart failure (CHF) eight control subjects. As compared subjects, PCr/Pi CLD or CHF was lower recovery period...
The experimental electron-density distribution of ferroelectric bismuth ferrite (BiFeO3) has been visualized using the synchrotron X-ray powder diffraction data and maximum-entropy method. present work clearly revealed partial covalency Bi-O bond, which is a key to understand spontaneous polarization. Density functional theory (DFT) calculation supported validity results.
Alumina is a key material to activate catalyisis of carbon nanotube growth. Although alumina known prevent aggregation metal nanoparticles and promote vertically aligned growth, details the interaction with are still unclear. We investigated how functions Fe Co catalysts comparing acetylene ethanol as source from viewpoint nanoparticle formation. Catalyst metals diffuse into precipitate nanoparticles. Thus, critical thickness ∼20 nm necessary retain atoms deposited on surface. However, in an...
Aluminum foam was fabricated without the use of a blowing agent by friction stir processing route using ADC12 aluminum alloy die castings, which contain large number gas pores. In this study, foams with porosity 50–77% were successfully fabricated, and pore structures compression properties obtained investigated. The had smaller pores than commercially available foam. Moreover, size almost same regardless porosity. According to results tests, plateau stress energy absorption tend decrease...
Photoluminescence (PL) from a single-walled carbon nanotube (SWNT) is sensitively influenced by molecular adsorption on the surface of SWNT, and thus useful for analysis adsorption. We investigated PL spectra DNA SWNT hybrids successfully obtained isolated DNA–SWNTs substrate under dry condition. peak energies single-stranded DNA–SWNT depended base type, namely thymine, adenine, cytosine, guanine. The type dependence was attributed to polarizability electronic charge distribution between...
Soliton's frequency shift arising from the pulse collision between wavelength division multiplexed (WDM) channels in an optical transmission line may be reduced by dispersion management technique. The reduction mechanism is due to a cancellation shifts normal and anomalous fibers. With proper of dispersion, effect lumped amplifiers on also canceled out. In this paper, we give detailed analysis managed systems, explain shift. We then propose optimal schemes means minimizing present...
Scanning electron microscopy (SEM) is widely used to observe graphene on metal substrates. However, the origin of SEM image contrast not well understood. In this work, we performed in situ imaging layer-number-controlled a Ni substrate using high-pass energy filter for secondary electrons. We found that layer was maximized at 15-20 eV, corresponding π-σ* interband transition graphene. Our results indicate produced by attenuation electrons emitted from monoatomic layers
The flow control capability (especially for separation control) of a dielectric-barrier-discharge plasma actuator (DBD-PA) has been investigated extensively. However, these studies have conducted under ideal conditions, such as wind tunnels and computational environments, limited the effects actuators in an actual environment. In this study, DBD-PA natural in-flight conditions was via field flight tests using unmanned aerial vehicle (UAV). driving system constructed with small high-voltage...
The frequency shift of solitons, induced by collisions between different channels in a soliton-WDM system, can be reduced dispersion compensation. reduction mechanism is due to cancellation the shifts generated both normal and anomalous regimes. cases with particular values 2-step compensated system are then found, which locally minimised for almost any collision distance.
We propose an improved wet chemical process for preparing a high-quality hydrogen-terminated Si(111)-(1× 1) surface and show atomically ordered ultraclean without carbon oxygen contamination. The vibrational properties morphology are investigated by high-resolution electron energy loss spectroscopy (HREELS), atomic force microscopy (AFM), scanning tunneling (STM). HREELS spectra images of AFM STM reveal the precise aqueous NH4F etching Si(111) indicate high controllability steps terraces at...
With a combination of the static capacitance–voltage (C–V) and capacitance transient (C–t) methods, interface-state response in an Al2O3/n-GaN structure was investigated at temperatures ranging from 23 to 300 °C. We observed pronounced degradation C–V curves measured high temperatures, arising enhancement charging/discharging rates interface states deeper energies within bandgap GaN. Faster responses with larger magnitudes also appeared time-dependent temperatures. From simple analysis C–t...
Diameter control of horizontally aligned single-walled carbon nanotubes (SWCNTs) is highly desired for controlling electronic properties and applying SWCNTs to devices. Preparation size-ordered catalyst nanoparticles one the approaches synthesizing diameter-controlled SWCNTs. We report narrow size distribution gold obtained by thermal annealing. The on an ST-cut quartz substrate changed dramatically when were annealed in Ar/H 2 atmosphere. Almost all diminished less than nm. More half them...