- Ultrasonics and Acoustic Wave Propagation
- Advanced ceramic materials synthesis
- Aluminum Alloys Composites Properties
- Advancements in Solid Oxide Fuel Cells
- Aluminum Alloy Microstructure Properties
- Fatigue and fracture mechanics
- Numerical methods in engineering
- Non-Destructive Testing Techniques
- Composite Structure Analysis and Optimization
- Magnetic and transport properties of perovskites and related materials
- Metal Forming Simulation Techniques
- Composite Material Mechanics
- Engineering Applied Research
- High-Velocity Impact and Material Behavior
- Electronic and Structural Properties of Oxides
- Mechanical Behavior of Composites
- Welding Techniques and Residual Stresses
- Fuel Cells and Related Materials
- Urban and spatial planning
- Semiconductor Quantum Structures and Devices
- Microstructure and mechanical properties
- Material Properties and Failure Mechanisms
- Fusion materials and technologies
- Mechanical stress and fatigue analysis
- Migration, Aging, and Tourism Studies
Saitama University
2015-2024
Tenri Hospital
2023-2024
University of Pittsburgh
2023
The University of Tokyo
2000-2020
Shinshu University
1989-2015
Tokyo University of the Arts
1997-2012
Mount Sinai Beth Israel
2011
Yeshiva University
2011
Hitachi (Japan)
2006-2007
Ibaraki University
2006-2007
Type III endoleaks after endovascular aneurysm repair (EVAR) of abdominal aortic aneurysms (AAAs) with the Endologix unibody endograft remain a major concern, despite fabric, system, and instructional updates. The purpose this study was to examine real-world outcomes repairing AAAs using current version AFX2 main body in combination an cuff, specifically focusing on type morphological changes endograft.We recruited facilities Japan that used combined cuff for at least five cases between...
Abstract This paper discusses the concentration of multimedia and Internet businesses in Central Tokyo. The producing various digitized materials other related to can be identified as a business domain referred "the industry." Tokyo is location largest Japan. Several industrial clusters such through locational analysis firms utilizing GIS techniques. Among these clusters, Kanda, one with its tradition IT technical publishing/printing businesses, contains number software design application...
Broadband access is indispensable for advanced Internet services, because voluminous data transfers have recently become popular in developed societies. Although broadband has spread to a certain degree countries/regions, geographical gaps (the so-called "geographical digital divide") remain. Based on three case studies less-favoured areas of Japan (Hokkaido, Nagano Prefecture and Mie Prefecture), we examined how the divide being bridged, contributions that national local government policies...
A uniaxial compression test of polycrystalline lanthanum cobaltite (LCO) was performed to investigate mechanical behavior LCO in the temperature range 83–553 K. Prepared by solid-state reaction, electrical resistivity and linear expansion coefficient LCO, measured between 80 1273 K, exhibit distinct changes attributed spin-state transitions cobalt ions around 100–200 K 400–600 but are relatively constant 200 400 The stress-strain curve obtained under shows strong nonlinearity due...
This paper investigates the effect of friction on buckling behavior a thin, shallow, elastic spherical shell under uniform external pressure based an axisymmetric model finite element method. The study examines combination different geometric parameters with three types boundary conditions: clamped, hinged, and frictional ends wide range coefficients. Friction has significant influence response for all parameters. In general, critical decreases as coefficient or parameter decreases. end...
Abstract An 80-year-old female patient underwent redo aortic valve replacement for haemolysis caused by moderate paravalvular leakage 1 year after a 21-mm Intuity Elite implantation. The elevatorium passed at the segment with leakage. frame was then bent inward using hook and peel around sawing ring shaved an elevatorium. After explantation of valve, endoscopic examination showed no sign annular or sub-annular damage. Conventional biological performed. We introduce safe alternative technique...