A5101962092- Advanced ceramic materials synthesis
- Microstructure and Mechanical Properties of Steels
- Metallurgy and Material Forming
- Metal Alloys Wear and Properties
- Fatigue and fracture mechanics
- Flow Measurement and Analysis
- High-Velocity Impact and Material Behavior
- Engineering Applied Research
- Ultrasonics and Acoustic Wave Propagation
- Aluminum Alloys Composites Properties
- Metal Forming Simulation Techniques
- Advanced Welding Techniques Analysis
- Advanced Surface Polishing Techniques
- Advanced Sensor Technologies Research
- Silicon and Solar Cell Technologies
- Liver physiology and pathology
- Cholesterol and Lipid Metabolism
- Welding Techniques and Residual Stresses
- Metal and Thin Film Mechanics
- Mechanical stress and fatigue analysis
- Metallurgical Processes and Thermodynamics
- Semiconductor materials and interfaces
- Landslides and related hazards
- Pancreatic function and diabetes
- Magnetic Properties and Applications
Ehime University
2011-2024
Kyushu University
1973-2024
Nitto Chemical Industry (Japan)
2024
Jichi Medical University
2009-2022
Kagawa University
2022
Ebara Hospital
2005-2021
Nippon Steel (Japan)
2003-2021
National Hospital Organization
2017-2020
Nippon Steel (Germany)
1993-2019
Sendai National College of Technology
2010-2018
AbstractAbstractAn attempt is made to model the transition from upper lower bainite in steels, based on hypothesis that bainitic ferrite grows with a supersaturation of carbon solid solution. The theory involves comparison between time required reject excess into residual austenite by diffusion and obtain detectable degree cementite precipitation ferrite. If process relatively rapid, then it assumed obtained. results are found be broad agreement published experimental data.MST/1095
Some applications of phase transformation theory towards the exploitation bainitic microstructures are discussed, with particular emphasis on quantitative aspects alloying element effects. Examples used to illustrate principles involved in design advanced alloys type currently under investigation steel industry.
Hydrolysis of intracellular cholesterol ester (CE) is the key step in reverse transport macrophage foam cells. We have recently shown that neutral hydrolase (Nceh)1 and hormone-sensitive lipase (Lipe) are regulators this process mouse macrophages. However, it remains unknown which enzyme critical human macrophages atherosclerosis.We aimed to identify responsible for CE hydrolysis determine its expression compared NCEH1, LIPE, (CES1) monocyte-derived (HMMs) examined effects inhibition or...
Lath-shaped upper bainite structures play a very important role in many high-strength steels (HSSs) and ultra (UHSSs). Although transformation is strongly affected by the initial structure, effect of second phase multi-phase structure yet to be clearly understood. It significant for advancement UHSS study this effect. The aim clarify martensite, which forms before bainite, Fe-0.2C-8Ni alloy. from an austenite martensite dual-phase faster than that single-phase nucleation bainitic ferrite...
Though as-quenched martensite exhibits a low uniform elongation in tension, it is highlighted that this phase has very high strain-hardening which increases with carbon content and large Bauschinger effect. Because usual dislocation storage can not explain reasonably particular behaviour, an approach based on continuum composite view of (CCA) developed suitable to capture all the experimental features.
Development in sheet steels has progressed strong relation with automotive industry Japan. To meet the requirements from industry, various types of including high and ultra strength steel sheets have been developed. Progresses three series will be discussed by checking historical facts technologies their contributions. Introductions interstitial free (IF) continuous annealing system are important events mild developments for panels. Extensive work on finding optimum mixtures hard soft phases...
Mechanical properties of a 0.14%C-1.9%Si-1.7%Mn TRIP steel have been studied especially from the aspect plastic stability retained austenite which was varied by changing bainite transformation time at 400°C. The and strength-ductility balance room temperature are improved with increase in C content after opimizing continuous annealing process. Martensitic can occur plastically unstable low content. kinetics model for deformation-induced martensitic explains experimentally obtained change...
Development in sheet steels has progressed with a strong relation automotive industry Japan. To meet the requirements from industry, various types of including high and ultra-high strength steel sheets have been developed. Progresses three series will be discussed by checking historical facts technologies their contributions. Introductions interstitial free (IF) continuous annealing system are important events mild developments for panels. Extensive work on finding optimum mixtures hard soft...
An excess of cholesterol and/or oxysterols induces apoptosis in macrophages, contributing to the development advanced atherosclerotic lesions. In foam cells, these sterols are stored esterified forms, which hydrolyzed by two enzymes: neutral ester hydrolase 1 (Nceh1) and hormone-sensitive lipase (Lipe). A deficiency either enzyme leads accelerated growth lesions mice. However, it is poorly understood how esterification hydrolysis linked apoptosis. Remarkably, Nceh1-deficient...
The present study is a chronological morphological examination on the effects of collagen gel matrix regeneration severed sciatic nerves. nerves (5 mm length) were resected, and both distal proximal stumps inserted into silicone tube with 5 gap in between. In test side, was then injected liquid which gells tissue when reconstructed certain buffer solution. space control side left empty. tube, considerably more rapid growth sprouting axons toward stump revealed comparison side. cells,...
An ultrasonic method for internal temperature monitoring is presented. The principle of the based on dependence velocity in materials. inverse analysis to determine one-dimensional gradient a heated plate developed and an experiment carried out verify validity method. A single side silicone rubber 30 mm thickness pulse–echo measurements are then performed during heating. change transit time waves monitored used transient variation rubber. determined ultrasonically agrees well with both...
We have been developing a multiplate type of bioartificial liver (BAL) using primary cultured hepatocyte monolayers since 1987. This BAL has shown to prolong the survival time anhepatic dogs and rabbits. Initially, hepatocytes were cultivated on collagen-coated plates. To increase multiplated function, sandwich cultivation method was employed in which rat between two collagen gel layers then evaluated both stationary perfusion cultures. In culture, showed higher activity urea synthesis than...
Bainite is of considerable importance in the design high strength steels. There are two types morphologies, upper and lower bainite. In bainite, cementite forms between adjacent bainitic ferrite plates. certain steels, however, reaction suppressed so that carbon-enriched austenite remains untransformed also has opportunity to precipitate within order model development these microstructures, it necessary treat simultaneous formation both ferritic carbide components microstructure. A theory...
Aim: Adipocyte lipolysis is mediated by a family of triglyceride (TG) lipases consisting hormone-sensitive lipase (LIPE), adipose (PNPLA2) and carboxylesterase 1 (CES1); however, little known about the relationship between expression each gene in different depots TG activity or obesity.Method: We measured both mRNA levels lipolytic enzymes (LIPE, PNPLA2 CES1) activities biopsy samples obtained from subcutaneous, omental mesenteric tissues 34 patients who underwent abdominal surgery. The...