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Proceedings Papers

Numerical Simulation of Korotkoff Sounds

Toshiyuki Hayase, Satoru Hayashi, Yupeng Xia, Tadao Koizumi

Proc. ASME. IMECE97, Advances in Bioengineering, 93-94, November 16–21, 1997

Paper No: IMECE1997-0244

DOI: https://doi.org/10.1115/IMECE1997-0244

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Topics: Blood, Blood pressure measurement, Computer simulation, Deformation, External pressure, Flow (Dynamics), Numerical analysis, Pipes, Pressure, Sphygmomanometers

Proceedings Papers

Analysis of Instability and Self-Excited Vibration for Collapsible Tube by Distributed Parameter Model

Satoru Hayashi, Toshiyuki Hayase, Yuji Miura

Proc. ASME. IMECE97, Advances in Bioengineering, 105-106, November 16–21, 1997

Paper No: IMECE1997-0250

DOI: https://doi.org/10.1115/IMECE1997-0250

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Topics: Distributed parameter models, Vibration, Stability, Circuits, Differential equations, Eigenvalues, Flow (Dynamics), Flow separation, Nonlinear equations, Resistors

Proceedings Papers

Numerical Analysis for Flow in Partly Pressurized Collapsible Tube

Satoru Hayashi, Toshiyuki Hayase, Masaru Maruyama

Proc. ASME. IMECE98, Advances in Bioengineering, 55-56, November 15–20, 1998

Paper No: IMECE1998-0028

DOI: https://doi.org/10.1115/IMECE1998-0028

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Topics: Computer simulation, Flow (Dynamics), Numerical analysis

Proceedings Papers

Effect of Initial Tube Strain on Self-Excited Oscillation of Collapsible Tube Flow

Yupeng Xia, Toshiyuki Hayase, Satoru Hayashi, Tsuyoshi Hamaya

Proc. ASME. IMECE2000, Advances in Bioengineering, 117-118, November 5–10, 2000

Paper No: IMECE2000-2543

DOI: https://doi.org/10.1115/IMECE2000-2543

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Topics: Flow (Dynamics), Oscillations, Blood vessels, Complex systems, Experimental analysis, Physiology, Silicone rubber, Tension, Unsteady flow

Proceedings Papers

Experimental Study on the Effects of Radial Dispersion of Spherical Particles on the Suspension Rheology

Misa Kawaguchi, Tomohiro Fukui, Kenichi Funamoto, Suguru Miyauchi, Toshiyuki Hayase

Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A061, July 28–August 1, 2019

Paper No: AJKFluids2019-5322

DOI: https://doi.org/10.1115/AJKFluids2019-5322

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Topics: Particulate matter, Rheology

Proceedings Papers

Deformation of Stenotic Blood Vessel Model Made From Poly (Vinyl Alcohol) Hydrogel by Hydrostatic Pressure

Yasutomo Shimizu, Lei Liu, Hiroyuki Kosukegawa, Kenichi Funamoto, Toshiyuki Hayase, Toshio Nakayama, Makoto Ohta

Proc. ASME. IMECE2016, Volume 3: Biomedical and Biotechnology Engineering, V003T04A055, November 11–17, 2016

Paper No: IMECE2016-66657

DOI: https://doi.org/10.1115/IMECE2016-66657

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Topics: Blood vessels, Deformation, Ethanol, Hydrogels, Hydrostatic pressure, Stiffness, Blood flow, Vessels, Diseases, Elasticity

Journal Articles

Fluid Vibration Induced by High-Shear-Rate Flow in a T-Junction

Gaku Tanaka, Ryuhei Yamaguchi, Hao Liu, Toshiyuki Hayase

J. Fluids Eng. August 2016, 138(8): 081103.

Paper No: FE-15-1418

DOI: https://doi.org/10.1115/1.4032935

Published Online: May 2, 2016

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Topics: Die cutting, Flow (Dynamics), Flow instability, Fluids, Junctions, Separation (Technology), Shear (Mechanics), Shearing (Deformation), Vibration, Vortices

Journal Articles

Numerical Analysis for Elucidation of Nonlinear Frictional Characteristics of a Deformed Erythrocyte Moving on a Plate in Medium Subject to Inclined Centrifugal Force

Takashi Oshibe, Toshiyuki Hayase, Kenichi Funamoto, Atsushi Shirai

J Biomech Eng. December 2014, 136(12): 121003.

Paper No: BIO-14-1278

DOI: https://doi.org/10.1115/1.4028723

Published Online: October 17, 2014

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Topics: Centrifugal force, Computation, Equilibrium (Physics), Erythrocytes, Pressure, Flow (Dynamics), Flat plates, Glass, Numerical analysis, Friction

Journal Articles

Optimization of Strut Placement in Flow Diverter Stents for Four Different Aneurysm Configurations

Hitomi Anzai, Jean-Luc Falcone, Bastien Chopard, Toshiyuki Hayase, Makoto Ohta

J Biomech Eng. June 2014, 136(6): 061006.

Paper No: BIO-13-1266

DOI: https://doi.org/10.1115/1.4027411

Published Online: May 6, 2014

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Topics: Aneurysms, Flow (Dynamics), Optimization, Stents, Inflow, Struts (Engineering)

Proceedings Papers

Numerical Experiment of MR-Measurement-Integrated Simulation of Steady Blood Flow in a Cerebral Aneurysm

Kenichi Funamoto, Yoshitsugu Suzuki, Toshiyuki Hayase, Takashi Kosugi, Haruo Isoda

Proc. ASME. SBC2008, ASME 2008 Summer Bioengineering Conference, Parts A and B, 1089-1090, June 25–29, 2008

Paper No: SBC2008-193240

DOI: https://doi.org/10.1115/SBC2008-193240

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Topics: Aneurysms, Blood flow, Simulation, Magnetic resonance imaging, Computation, Computer simulation, Diseases, Flow (Dynamics), Magnetic resonance

Proceedings Papers

Effect of Neutrophils Retention Time in Capillaries on Increase in Their Concentration in a Lattice Capillary Network Model

Atsushi Shirai, Toshiyuki Hayase

Proc. ASME. SBC2007, ASME 2007 Summer Bioengineering Conference, 431-432, June 20–24, 2007

Paper No: SBC2007-176717

DOI: https://doi.org/10.1115/SBC2007-176717

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Topics: Blood, Defense industry, Flow (Dynamics), Leukocytes, Lung, Network models

Proceedings Papers

Influence of Plaque Stiffness on Change of Blood Vessel Geometry Leading Hemodynamical Changes in PVA-H Stenosis Models

Yasutomo Shimizu, Shuya Shida, Kenichi Funamoto, Toshiyuki Hayase, Makoto Ohta

Proc. ASME. IMECE2012, Volume 2: Biomedical and Biotechnology, 455-460, November 9–15, 2012

Paper No: IMECE2012-87073

DOI: https://doi.org/10.1115/IMECE2012-87073

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Topics: Blood vessels, Geometry, Hemodynamics, Stiffness, Flow (Dynamics), Blood flow, Deformation, Hydrostatic pressure, Mechanical properties, Pressure

Proceedings Papers

Reproduction of Blood Flow Field by Numerical Simulation Integrated With Ultrasonic Measurement With Noise

Kenichi Funamoto, Toshiyuki Hayase, Yoshifumi Saijo, Tomoyuki Yambe

Proc. ASME. SBC2009, ASME 2009 Summer Bioengineering Conference, Parts A and B, 455-456, June 17–21, 2009

Paper No: SBC2009-206596

DOI: https://doi.org/10.1115/SBC2009-206596

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Topics: Blood flow, Computer simulation, Noise (Sound), Ultrasonic measurement, Simulation, Errors, Feedback, Signals, Transients (Dynamics)

Proceedings Papers

Hemodynamic Changes in the Left Atrium due to Atrial Fibrillation

Kenichi Funamoto, Ryo Koizumi, Toshiyuki Hayase, Muneichi Shibata, Tomoyuki Yambe

Proc. ASME. SBC2011, ASME 2011 Summer Bioengineering Conference, Parts A and B, 1131-1132, June 22–25, 2011

Paper No: SBC2011-53817

DOI: https://doi.org/10.1115/SBC2011-53817

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Topics: Hemodynamics, Diseases, Fluid structure interaction, Shapes, Signals, Simulation, Thrombosis

Proceedings Papers

Visualization of Microcirculation Based on Brightness Variation in Contrast-Enhanced Ultrasound

Kenichi Funamoto, Toshiyuki Hayase, Tetsuya Kodama

Proc. ASME. SBC2010, ASME 2010 Summer Bioengineering Conference, Parts A and B, 219-220, June 16–19, 2010

Paper No: SBC2010-19349

DOI: https://doi.org/10.1115/SBC2010-19349

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Topics: Brightness (Photometry), Ultrasound, Visualization, Tumors, Biological tissues, Blood vessels, Drugs, Echocardiography, Microbubbles, Pressure sensors

Proceedings Papers

Three-Dimensional Flow Analysis in VFP Type Artificial Heart by Unstructured Grid

Satoyuki Kawano, Takuma Kato, Kazuhiro Nakahashi, Atsushi Shirai, Toshiyuki Hayase, Tomoyuki Yambe, Shin-Ichi Nitta, Hiroyuki Hashimoto

Proc. ASME. PVP2002, Computational Technologies for Fluid/Thermal/Structural/Chemical Systems With Industrial Applications, Volume 1, 229-238, August 5–9, 2002

Paper No: PVP2002-1556

DOI: https://doi.org/10.1115/PVP2002-1556

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Topics: Artificial hearts, Flow (Dynamics), Blood, Blood flow, Swirling flow, Compressibility, Computation, Design, Finite volume methods, Pumps

Journal Articles

Frictional Characteristics of Erythrocytes on Coated Glass Plates Subject to Inclined Centrifugal Forces

Takashi Kandori, Toshiyuki Hayase, Kousuke Inoue, Kenichi Funamoto, Takanori Takeno, Makoto Ohta, Motohiro Takeda, Atsushi Shirai

J Biomech Eng. October 2008, 130(5): 051007.

DOI: https://doi.org/10.1115/1.2948420

Published Online: July 14, 2008

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Topics: Blood, Centrifugal force, Erythrocytes, Friction, Glass, Microscopes, Plasmas (Ionized gases), Plates (structures), Polymers, Proteins

Proceedings Papers

Transit Characteristics of a Deformed Neutrophil Through a Moderate Constriction

Atsushi Shirai, Ryo Fujita, Toshiyuki Hayase

Proc. ASME. IMECE2003, Advances in Bioengineering, 133-134, November 15–21, 2003

Paper No: IMECE2003-55020

DOI: https://doi.org/10.1115/IMECE2003-55020

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Topics: Geometry, Pipelines, Shapes

Journal Articles

Numerical Simulation of Noninvasive Blood Pressure Measurement

Satoru Hayashi, Toshiyuki Hayase, Atsushi Shirai, Masaru Maruyama

J Biomech Eng. October 2006, 128(5): 680–687.

DOI: https://doi.org/10.1115/1.2241592

Published Online: February 23, 2006

View Article

Topics: Blood pressure measurement, Pressure, Flow (Dynamics), Pipes, Oscillations, Computer simulation

Journal Articles

Variation of Wall Shear Stress and Periodic Oscillations Induced in the Right-Angle Branch During Laminar Steady Flow

Ryuhei Yamaguchi, Takeshi Mashima, Hideaki Amagai, Hisashi Fujii, Toshiyuki Hayase, Kazuo Tanishita

J. Fluids Eng. September 2005, 127(5): 1013–1020.

DOI: https://doi.org/10.1115/1.1852480

Published Online: September 19, 2005

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Topics: Flow (Dynamics), Oscillations, Shear stress, Separation (Technology), Flow visualization, Corners (Structural elements)

Journal citation

NARROW

Numerical Simulation of Korotkoff Sounds

Analysis of Instability and Self-Excited Vibration for Collapsible Tube by Distributed Parameter Model

Numerical Analysis for Flow in Partly Pressurized Collapsible Tube

Effect of Initial Tube Strain on Self-Excited Oscillation of Collapsible Tube Flow

Experimental Study on the Effects of Radial Dispersion of Spherical Particles on the Suspension Rheology

Deformation of Stenotic Blood Vessel Model Made From Poly (Vinyl Alcohol) Hydrogel by Hydrostatic Pressure

Fluid Vibration Induced by High-Shear-Rate Flow in a T-Junction

Numerical Analysis for Elucidation of Nonlinear Frictional Characteristics of a Deformed Erythrocyte Moving on a Plate in Medium Subject to Inclined Centrifugal Force

Optimization of Strut Placement in Flow Diverter Stents for Four Different Aneurysm Configurations

Numerical Experiment of MR-Measurement-Integrated Simulation of Steady Blood Flow in a Cerebral Aneurysm

Effect of Neutrophils Retention Time in Capillaries on Increase in Their Concentration in a Lattice Capillary Network Model

Influence of Plaque Stiffness on Change of Blood Vessel Geometry Leading Hemodynamical Changes in PVA-H Stenosis Models

Reproduction of Blood Flow Field by Numerical Simulation Integrated With Ultrasonic Measurement With Noise

Hemodynamic Changes in the Left Atrium due to Atrial Fibrillation

Visualization of Microcirculation Based on Brightness Variation in Contrast-Enhanced Ultrasound

Three-Dimensional Flow Analysis in VFP Type Artificial Heart by Unstructured Grid

Frictional Characteristics of Erythrocytes on Coated Glass Plates Subject to Inclined Centrifugal Forces

Transit Characteristics of a Deformed Neutrophil Through a Moderate Constriction

Numerical Simulation of Noninvasive Blood Pressure Measurement

Variation of Wall Shear Stress and Periodic Oscillations Induced in the Right-Angle Branch During Laminar Steady Flow

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