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Journal of Biomechanical Science and Engineering
Scopus
ISSN 1880-9863 · The Japan Society of Mechanical Engineers · 669 articles in the index
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Journal Article
Multi-amino acid quantification device using amino acid-binding enzymes and color-forming reagents
This study reports the development of a compact tabletop onsite device designed to facilitate non-invasive, rapid, low-cost, and user-friendly health evaluation by quantifying amino acids in sweat through enzymatic reactions. The system employs freeze-dried reagents coated onto a multilayer PET…
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Journal Article
Prediction of hemodynamics and cardiac function in aortic stenosis patients with heart failure using a patient-specific hemodynamic model
The aortic valve plays a crucial role in cardiac function by opening synchronously with left ventricular contraction to pump blood into the aorta and closing during left ventricular relaxation to prevent blood regurgitation. Aortic valve stenosis (AS), resulting from congenital bicuspid valves or…
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Journal Article
Interfacial viscoelastic remodeling of epithelial monolayers analyzed using QCM-D
Epithelial cell layers dynamically remodel their mechanical interactions with the substrate, but the quantitative evaluation of such interfacial behavior remains challenging. Here, we employed quartz crystal microbalance with dissipation (QCM-D) monitoring to investigate how the viscoelastic…
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Journal Article
Analysis of natural frequencies of bone-conducted sounds using short-time Fourier transform
This study presents a new method for evaluating the natural frequencies of bone-conducted sounds using spectrograms obtained by short-time Fourier transform (STFT) and machine learning (ML) and examines its validity for practical applications. The natural frequencies of bone-conducted sounds is…
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Journal Article
Curvature-directed buckling patterns in proliferating ellipsoidal epithelial tissues
The three-dimensional morphogenesis of epithelial tissues is governed by robust physical mechanisms. Examples of this process include the folding of insect imaginal discs and cerebral convolutions. Reaction-diffusion theories have historically focused on chemical aspects to explain these…
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Journal Article
Low-dimensional periodic organization of overground walking revealed by principal component analysis of marker displacements
This study investigated the low-dimensional spatiotemporal structure of overground walking using displacement-based principal component analysis (PCA). Four healthy young male subjects participated in the walking measurement experiment. Three-dimensional marker trajectories were collected during…
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Journal Article
Gait dependence of the lower trunk motion in human locomotion
The periodic motion of the lower trunk region during human locomotion is analyzed from a kinematic perspective for different gaits using inertial measurement units (IMUs). Experiments are performed on subjects who walked or ran on a treadmill, each equipped with an IMU attached to their lower…
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Journal Article
Rheotactic alignment and collective swimming of spermatozoa in shear-thinning fluids
Mammalian spermatozoa navigating through the female reproductive tract to reach the egg comprises a fundamental step in achieving successful fertilization. Within the oviduct, sperms encounter oviductal mucus, which is a highly viscous and shear-thinning non-Newtonian fluid whose rheological…
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Journal Article
Development of a passive exoskeleton device for gait assistance and load support
This study developed a passive exoskeleton designed to alleviate the physical burden of heavy backpacks by establishing an external load path that bypasses the body. Inspired by traditional load-resting methods, the device employs rigid structural rods to transfer the weight directly from the…
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Journal Article
The cost of stability: Markerless video analysis reveals a “stiffening strategy” in older fallers during the Timed Up and Go test
Traditional stopwatch-based assessments such as the Timed Up and Go (TUG) test may lack sensitivity for high-functioning older adults because of ceiling effects. This study evaluated the potential of a markerless motion capture (MMC) framework using a single monocular camera to quantify subtle…
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Journal Article
Multiscale analysis of wind-induced responses of plants at tissue and cellular levels in sunflower growth
A number of studies have been conducted on the relationship between plant growth and external stimuli. There has been, however, little research on the effects of wind stimuli that are one of the major stress factors acting on plants in natural environments. Understanding how mechanical properties…
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Journal Article
Modeling shape evolution in a system composed of interacting elastic bodies based on individually assigned and temporally evolving energy landscapes
In both engineered and living systems composed of mechanically interacting elastic bodies, variational modeling, which assigns an energy function to a system, has effectively captured the shape evolution in the elastic body system in response to the mechanical interactions. However, to make an…
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Journal Article
Data-driven synthesis of cerebral aneurysm geometries for systematic hemodynamic simulation (A feasibility study using a cavity-flow-type velocity boundary condition)
The present study presents a data-driven generation of synthetic cerebral aneurysm geometries for systematic computational hemodynamic simulations. Seven patient-specific aneurysm geometries from the right internal carotid artery were reconstructed from time-of-flight magnetic resonance angiography…
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Journal Article
Reconstruction of instantaneous flow fields from transient velocity snapshots using physics-informed neural networks (Applications to pulsatile blood flow behind a stenosis)
Physics-informed neural networks (PINNs) offer a promising framework by embedding partial differential equations (PDEs) into the loss function together with measurement data, making them well-suited for inverse problems. However, plain PINNs face challenges with time-dependent PDEs due to the high…
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Journal Article
Relationship between bone material property distribution and stress distribution in femurs after THA
Bone material properties in the femur exhibit marked spatial heterogeneity, which may influence stress distribution after total hip arthroplasty (THA). However, many finite element (FE) studies have relied on homogeneous material assumptions, potentially overlooking patient-specific femoral…
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Journal Article
Microchamber-based platform for quantitative and time-resolved immune monitoring of macrophage responses to biorelevant micro- and nanoparticles (Application to ultra-high-molecular-weight polyethylene wear particles)
Wear particles generated from ultra-high-molecular-weight polyethylene (UHMWPE) joint components play a central role in macrophage-mediated inflammatory responses associated with periprosthetic osteolysis. Although particle size, material modification, and particle load are known to influence…
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Journal Article
Cochlear traveling-wave interference under simultaneous acoustic and vibrational stimulation (Finite element simulations of multi-frequency conditions)
Sound reaches the auditory system through air conduction (AC) via the ear canal or bone conduction (BC) via vibrations of the temporal bone, and both pathways are often activated simultaneously in real environments such as trains and vehicles; environmental sounds are transmitted via AC, while…
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Journal Article
Integrated analysis of flow and diffusion for efficient particle capture by an array of sensilla
The antenna of a male insect can capture pheromones generated by a female insect. In this study, the sensilla of an antenna are represented by a row of cylinders, and the mass of pheromones they capture along with the capture rate are calculated. The diameter of the real sensilla of a moth Bombyx…
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Journal Article
Biomechanical modeling of subjective workload considering muscle fatigue in a repetitive task
Accurate, objective estimation of subjective workload is critical issue in occupational health and safety, yet existing methods largely rely on observational assessments rather than quantitative metrics. To address this gap, this paper presents a novel approach for objectively estimating subjective…