Akihiro MATSUDA
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View article: Japanese Multi‐Institution Study of Success Rates of Wire‐Guided Biliary Cannulation During Endoscopic Retrograde Cholangiopancreatography in Relation to Guidewire tip Length (JMIT Study) (With Video)
Japanese Multi‐Institution Study of Success Rates of Wire‐Guided Biliary Cannulation During Endoscopic Retrograde Cholangiopancreatography in Relation to Guidewire tip Length (JMIT Study) (With Video) Open
Objective Wire‐guided cannulation (WGC) reportedly increases the successful biliary cannulation rate and reduces the risk of post‐endoscopic retrograde cholangiopancreatography pancreatitis. Currently, various types of guidewires are avail…
View article: Philosophical Significance of Artificial Intuitions
Philosophical Significance of Artificial Intuitions Open
This paper explores the ways in which large language models (LLMs) can be used for the purpose of experimental philosophy. LLMs can be used in different ways for different purposes in experimental philosophy (Section 2). Among others, we f…
View article: Philosophical Significance of Artificial Intuitions
Philosophical Significance of Artificial Intuitions Open
This paper explores the ways in which large language models (LLMs) can be used for the purpose of experimental philosophy. LLMs can be used in different ways for different purposes in experimental philosophy (Section 2). Among others, we f…
View article: Constitutive Modeling of Fibrous Tissues with Non-Symmetric Fiber Dispersion: Application to Extension Behavior of Leather
Constitutive Modeling of Fibrous Tissues with Non-Symmetric Fiber Dispersion: Application to Extension Behavior of Leather Open
Leather is a fiber-reinforced material with a more concentrated fiber distribution in three dimensions perpendicular to the tangential plane than in-plane. The asymmetric dispersion of fibers can have a significant effect on the mechanical…
View article: Structure-based modeling of artificial leather used in sports with non-symmetric fiber distribution
Structure-based modeling of artificial leather used in sports with non-symmetric fiber distribution Open
In artificial leather, which is used in sports as a fiber-reinforced material, the distribution of the fiber family in the tangential plane is more dispersed than that perpendicular to the tangential plane. According to previous studies, i…
View article: Electrical insulation performance of flame-retardant electrical cables with thermoplastic and thermosetting materials for nuclear power plants
Electrical insulation performance of flame-retardant electrical cables with thermoplastic and thermosetting materials for nuclear power plants Open
Fire accidents are a significant evaluation target for the safety management of nuclear power plants (NPPs). During fire accidents, the combustion of electrical cables and electrical failure due to thermal damage have the potential to occu…
View article: Discovery of Atabecestat (JNJ-54861911): A Thiazine-Based β-Amyloid Precursor Protein Cleaving Enzyme 1 Inhibitor Advanced to the Phase 2b/3 EARLY Clinical Trial
Discovery of Atabecestat (JNJ-54861911): A Thiazine-Based β-Amyloid Precursor Protein Cleaving Enzyme 1 Inhibitor Advanced to the Phase 2b/3 EARLY Clinical Trial Open
Accumulation of amyloid β peptides (Aβ) is thought to be one of the causal factors of Alzheimer's disease (AD). The aspartyl protease β-site amyloid precursor protein cleaving enzyme 1 (BACE1) is the rate-limiting protease for Aβ productio…
View article: A Method for Detecting Street Parking Using Dashboard Camera Videos
A Method for Detecting Street Parking Using Dashboard Camera Videos Open
In recent years, street parking in prohibited areas has become a social problem, especially in urban and tourist areas.In addition, because street parking can cause traffic congestion and accidents, real-time detection is required.The dete…
View article: A Study on Mechanical Properties of Lugs of Trail Running Shoes
A Study on Mechanical Properties of Lugs of Trail Running Shoes Open
In this study, the effects of the shape of lugs placed on the outsole of trail running shoes on their mechanical properties was investigated. The finite element method (FEM) analysis were conducted on several analytical models simulating t…
View article: Study on Added Mass Effect Caused by Collision of a Floating Body
Study on Added Mass Effect Caused by Collision of a Floating Body Open
At the Great East Japan Earthquake in 2011, various structures along the coast were damaged by tsunami. Therefore, methods for evaluating tsunami damage to structures came under extensive review. The causes of tsunami damage can be classif…
View article: Evaluation for mechanical properties of CFRP / TPS laminates for the purpose of advanced design of sports equipment
Evaluation for mechanical properties of CFRP / TPS laminates for the purpose of advanced design of sports equipment Open
Thermoplastic styrenic elastomers(TPS) are physical mixtures of polymers. They are used for automobile parts and sports products to suppress vibration because of its mechanical properties. In this study, CFRP / TPS sandwich composite mater…
View article: A Study on the Mechanical Characteristics of String Planes of Badminton Racquets by Nonlinear Finite Element Analysis
A Study on the Mechanical Characteristics of String Planes of Badminton Racquets by Nonlinear Finite Element Analysis Open
In this study, the finite element analysis of the string planes of badminton racquets was investigated to evaluate the effect of the mechanical characteristics of polymer strings. The nonlinear mechanical characteristics of commercially av…
View article: Applicability of Thermoplastic Elastomers to Impact Load Reduction in Sports Equipment
Applicability of Thermoplastic Elastomers to Impact Load Reduction in Sports Equipment Open
In this paper, mechanical properties of thermoplastic elastomers were investigated to expand the applicability of thermoplastic elastomers to the impact load reduction for the sports equipment. The thermoplastic elastomers show both thermo…
View article: Evaluation of 3-Axial Knee Joint Torques Produced by Compression Sports Tights in Running Motion
Evaluation of 3-Axial Knee Joint Torques Produced by Compression Sports Tights in Running Motion Open
In this paper, 3-axial knee joint torques given by compression sports tights were performed by numerical simulations using 3-dimensional computer graphics of a human model. Running motions of the human model were represented as the 3-dimen…
View article: Finite element computation with anisotropic hyperelastic model considering distributed fibers for artificial and natural leather used in sports
Finite element computation with anisotropic hyperelastic model considering distributed fibers for artificial and natural leather used in sports Open
Materials such as natural leather and artificial leather are some of the most important materials in sports. Natural leathers have been widely used for sports equipment. Currently, artificial leathers are also often used in sports as an al…
View article: Finite element analysis of compressible anisotropic materials with dispersed fiber orientation
Finite element analysis of compressible anisotropic materials with dispersed fiber orientation Open
The finite element analysis of artificial leather for sports equipment was performed in this paper. Leather materials contain tightly entangled fibers in the body. The structure of its fiber layer is complex because the fiber orientation i…
View article: Evaluation of internal structure of self-contracting auxetic rubber material by finite element analysis
Evaluation of internal structure of self-contracting auxetic rubber material by finite element analysis Open
In this study, the internal structure of auxetic materials was evaluated by finite element analysis. The auxetic materials have periodic voids. Volume of auxetic materials decreases and the density increases under compression. This kind of…
View article: Anisotropic hyperelastic model considering fiber dispersion for artificial leather
Anisotropic hyperelastic model considering fiber dispersion for artificial leather Open
In this paper, an anisotropic hyperelastic model for artificial leather considering fiber dispersion was investigated. Fiber-reinforced elastomer such as artificial leather, show non-linear elastic characteristics, and it depends on the pr…
View article: Cyclic deformation properties of artificial leather for sports equipment
Cyclic deformation properties of artificial leather for sports equipment Open
In this research, mechanical properties and viscous effects of artificial leather for sports under cyclic deformation were investigated. The artificial leathers are widely used for sports equipment. They have tightly entangled fibers and s…
View article: Experimental Study on Combustion Characteristics of Degraded Flame Retardant Cable
Experimental Study on Combustion Characteristics of Degraded Flame Retardant Cable Open
Electric cables used in power plants are important facilities to supply power and signals to equipment during fire accident. Flame retardance is required for electric cables in power plant. Electric cables are degraded by heat and radiatio…
View article: Simulation of pressure drop of HEPA filter for power plants
Simulation of pressure drop of HEPA filter for power plants Open
In the fire accident at the nuclear power plants, pressure across the high efficiency particulate air (HEPA) filter increases with time due to a large amount of particle. The predictions of pressure drop are important issues for safe manag…
View article: Evaluating Combustion Characteristics of Flame Retardant Cable in Power Plants
Evaluating Combustion Characteristics of Flame Retardant Cable in Power Plants Open
Electric cables used in power plants are important facilities to supply power and signals to equipment during fire accident. In this study, combustion characteristics of electric cables used in power plants were evaluated by combustion tes…
View article: Study on improvement of vibration-damping properties for sports equipment
Study on improvement of vibration-damping properties for sports equipment Open
In the design of sports equipment, vibration damping is important issues. In this study, the damping effects of thermoplastic elastomers(TPEs) were investigated to apply TPEs to the vibration damping materials. TPEs are physical mixtures o…
View article: Damage Assessment in Case of Cable Fire in Nuclear Facilities Considering Damage Criteria for Each Material Type
Damage Assessment in Case of Cable Fire in Nuclear Facilities Considering Damage Criteria for Each Material Type Open
Various types of flame retardant cable are used in nuclear power plants. The cable insulation and sheath materials are generally categorized into two types: thermosetting (TS) and thermoplastic (TP) materials. Domestic cable fire damage cr…
View article: Finite Element Analysis of String Plane of Badminton Racquet Considering Shuttlecock Contacts
Finite Element Analysis of String Plane of Badminton Racquet Considering Shuttlecock Contacts Open
In this study, the performance of string planes of badminton racquets was evaluated by the numerical simulation considering the contact of the shuttlecock. The contact behavior between the shuttlecock and the string plane was simulated. Th…
View article: Finite element analysis of deformation behavior in auxetic rubber material
Finite element analysis of deformation behavior in auxetic rubber material Open
In this study, the deformation behavior of auxetic materials was evaluated by finite element analysis. The auxetic materials have periodic voids. Volume of auxetic materials decreases and the density increases under compression. This kind …
View article: Study on Vibration-Damping Properties of CFRP Laminates with TPS Sheet
Study on Vibration-Damping Properties of CFRP Laminates with TPS Sheet Open
In this study, mechanical characteristics of carbon fiber reinforced plastic(CFRP) with thermoplastic styrenic elastomers(TPS) were investigated. The finite element method(FEM) was applied to introduced into laminated beams and numerical a…
View article: Numerical analysis of pressure drop of HEPA filter in fuel cycle facility under Fire
Numerical analysis of pressure drop of HEPA filter in fuel cycle facility under Fire Open
HEPA filter are installed to remove radioactive aerosol in the ventilation system of the fuel cycle facility. In the fire accident, the pressure drop of the filter increases with time due to a large amount of particle. The collapsing the f…
View article: Study on Voxel Finite Element Analysis of Open-Cell Polyurethane Foam
Study on Voxel Finite Element Analysis of Open-Cell Polyurethane Foam Open
Establishment of a design method for the macroscopic stress-strain relationship of open-cell foam has been investigated because of the foam’s complicated microstructures. In this study, a material design method for the mechanical behavior …
View article: Evaluation of Impact Absorbing Properties of Thermoplastic Elastomers
Evaluation of Impact Absorbing Properties of Thermoplastic Elastomers Open
The thermoplastic elastomers (TPEs) are physical mixtures of polymers. Impact absorbing materials in sports equipment are one of the expected applications of TPEs due to good process ability and less-smell. For examples, face guards, head-…