Koichi Tsuchiya
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View article: Carrier-resolved metagenomics suggests the dual “filter–hub” function of a large freshwater lake toward incoming antibiotic resistance genes
Carrier-resolved metagenomics suggests the dual “filter–hub” function of a large freshwater lake toward incoming antibiotic resistance genes Open
Rivers and wastewater-treatment plants (WWTPs) convey antibiotic resistance genes (ARGs) to lakes. Studies simultaneously profiling ARGs and their carriers and tracking their persistence in lakes remain scarce. We collected cell- and virus…
View article: Energy absorption capacity of NiTi lattice structure (1st report: Evaluation of stiffness and strength of the structure by considering the effective length of the strand)
Energy absorption capacity of NiTi lattice structure (1st report: Evaluation of stiffness and strength of the structure by considering the effective length of the strand) Open
In this study, a method for evaluating the mechanical properties, specifically the initial stiffness and martensitic transformation onset stress, of NiTi lattice structures, Body Centered Cubic (BCC) and Rhombic Dodecahedral (RD) structure…
View article: Structure-dynamics relation in metallic glass revealed by 5-dimensional scanning transmission electron microscopy
Structure-dynamics relation in metallic glass revealed by 5-dimensional scanning transmission electron microscopy Open
Dynamical and structural heterogeneities play an important role in glass transition phenomena. However, the relation between these heterogeneities is not fully revealed. In this study, we simultaneously observed these heterogeneities near …
View article: Effect of Microstructure Differences on the Thermal and Mechanical Behaviors of Porous Cementitious Composites Using Phase Change Materials
Effect of Microstructure Differences on the Thermal and Mechanical Behaviors of Porous Cementitious Composites Using Phase Change Materials Open
This study focuses on the effect of different microstructures on the thermal and mechanical behaviors of porous concrete impregnated with phase change materials (PCMs), referred to as PoroPCM. This study involved the preparation of a PCM e…
View article: Structure-Dynamics Relation in Metallic Glass Revealed by 5-Dimensional Scanning Transmission Electron Microscopy
Structure-Dynamics Relation in Metallic Glass Revealed by 5-Dimensional Scanning Transmission Electron Microscopy Open
Dynamic and structural heterogeneities play an important role in glass transition phenomena. However, the relation between these heterogeneities is not fully revealed. In this study, we simultaneously observed these heterogeneities near th…
View article: Thermal and mechanical properties of porous cementitious composites using phase-change materials with different microstructures
Thermal and mechanical properties of porous cementitious composites using phase-change materials with different microstructures Open
This study investigates the influence of microstructure and its related performances on the thermal and mechanical behaviors of porous concrete impregnated with phase-change material (PCM), referred to as PoroPCM. The material is composed …
View article: The Constituent Phases and Micromechanical Properties of Steel Corrosion Layers Generated by Hyperbaric-Oxygen Accelerated Corrosion Test
The Constituent Phases and Micromechanical Properties of Steel Corrosion Layers Generated by Hyperbaric-Oxygen Accelerated Corrosion Test Open
Hyperbaric oxygen-accelerated corrosion testing (HOACT) is a newly developed method to study in the labor the corrosion behavior of steel bars in concrete. This work aimed to intensively investigate the mechanical properties and microstruc…
View article: Structure-Dynamics Correlation in Metallic Glass Revealed by 5-Dimensional Scanning Transmission Electron Microscopy
Structure-Dynamics Correlation in Metallic Glass Revealed by 5-Dimensional Scanning Transmission Electron Microscopy Open
Dynamic and structural heterogeneities play an important role in glass transition phenomena and in the formation of amorphous structures. Since structure and dynamics are mutually related, it is expected that there exists some relation bet…
View article: Properties of Composite Electrodes for All-solid-state Fluoride-ion Secondary Batteries Processed by High-pressure Torsion
Properties of Composite Electrodes for All-solid-state Fluoride-ion Secondary Batteries Processed by High-pressure Torsion Open
All-solid-state fluoride-ion batteries (FIBs) using metal/metal fluorides are expected to be the next generation of storage batteries because they exhibit high volumetric energy densities by utilizing multielectron reactions, compared to t…
View article: Microstructural response and mechanical properties of α-precipitated Ti–5Al–5Mo–5V–3Cr alloy processed by high-pressure torsion
Microstructural response and mechanical properties of α-precipitated Ti–5Al–5Mo–5V–3Cr alloy processed by high-pressure torsion Open
The aged Ti–5Al–5Mo–5V–3Cr alloy which is composed of acicular α precipitates and β matrix was processed by high-pressure torsion (HPT). The different flow behaviors of these two phases have a great influence on the grain refinement proces…
View article: Grain Refinement in High-Entropy Alloys by High-Pressure Torsion Deformation
Grain Refinement in High-Entropy Alloys by High-Pressure Torsion Deformation Open
This article describes the process of grain refinement behavior in fcc high-entropy alloys (HEAs) by severe plastic deformation using high-pressure torsion (HPT) method. Disk samples of CrMnFeCoNi and Al0.3CrFeCoNi were deformed by HPT. It…
View article: Recurrence risk factors in elderly patients with stage II colorectal cancer
Recurrence risk factors in elderly patients with stage II colorectal cancer Open
Background: We investigated the risk factors for recurrence in high risk stage II colorectal cancer patients over 75 years old.
View article: Effect of Quasi-Hydrostatic Pressure on Deformation Mechanism in Ti-10Mo Alloy
Effect of Quasi-Hydrostatic Pressure on Deformation Mechanism in Ti-10Mo Alloy Open
The deformation mechanisms of Ti-10Mo (wt.%) alloy subjected to different quasi-hydrostatic pressure values were investigated under constrained compression using stage of high-pressure torsion apparatus. Deformation products contain {332} …
View article: Evaluating the phase stability of binary titanium alloy Ti-X (X = Mo, Nb, Al, and Zr) using first-principles calculations and a Debye model
Evaluating the phase stability of binary titanium alloy Ti-X (X = Mo, Nb, Al, and Zr) using first-principles calculations and a Debye model Open
To realize bottom-up design of alloys based on theoretical calculations, the thermodynamic stabilities of phases in Ti binary alloys were estimated by a combination of density functional theory calculations for the internal enthalpy energy…
View article: Effects of Mo segregation on Charpy absorbed energy in Ti-12Mo alloys
Effects of Mo segregation on Charpy absorbed energy in Ti-12Mo alloys Open
Beta phase stabilizing elements such as Mo have strong tendency to segregate. We have introduced swirly type segregation of Mo in Ti-12Mo (mass %) alloy through groove bar rolling. After solution treatment and low temperature aging, hard o…
View article: Microstructure-twinning relations in beta-Ti alloys
Microstructure-twinning relations in beta-Ti alloys Open
We have investigated twinning-microstructure relations in β-Ti alloys by statistical analysis of the evolving twin structure upon deformation by in-situ SEM testing and electron backscattering diffraction (EBSD). In particular, we have ana…
View article: Plastic deformation of beta-Ti-Mo alloys with isothermal omega phase
Plastic deformation of beta-Ti-Mo alloys with isothermal omega phase Open
Aging of metastable beta-Ti alloys leads to the precipitation of omega phase, resulting in a significant loss in ductility (omega brittleness). This presentation reports the results of 3D observations of isothermal omega phase by an orthog…
View article: Deformation mechanisms and effect of oxygen addition on mechanical properties of Ti-7.5Mo alloy with α” martensite
Deformation mechanisms and effect of oxygen addition on mechanical properties of Ti-7.5Mo alloy with α” martensite Open
Effect of oxygen content as an important interstitial solute on the microstructure and mechanical properties of Ti-7.5Mo alloy was investigated. With increasing the oxygen content, the yielding strength, ultimate tensile strength and Young…
View article: Understanding diffraction patterns of glassy, liquid and amorphous materials via persistent homology analyses
Understanding diffraction patterns of glassy, liquid and amorphous materials via persistent homology analyses Open
The structure of glassy, liquid, and amorphous materials is still not well understood, due to the insufficient structural information from diffraction data. In this article, attempts are made to understand the origin of diffraction peaks, …
View article: Contents
Contents Open
The cover illustrates a comprehensive approach to reveal homology in disordered materials by a combination of diffraction experiments, computer modelling, and advanced mathematics.