研究者詳細 - 玉川　雅章

論文 - 玉川　雅章

分割表示219 件中 121 - 140 件目／全件表示 >>

Experimental studies on the bio-effects of various shock waves on rats 査読有り

H.Watanabe,M.Uchida,T.Akamatsu,M.Tamagawa

Proc. 18th Int. Shock Wave Symp. 1233 ( 1236 ) 2008年04月

Elucidation of Driving Force of Neutrophile in Liquid by Cytokine Concentration Gradient 査読有り

M. Tamagawa and K. Matsumura

Proceedings of ICBME 2008　(International Conference of Biomechanical Engineering) 882 - 882 2008年04月

Fundamental Investigations of Driving Force of a Neutrophile in Liquid Using Concentration Marangoni Effect for Developing Microcapsules in Drug Delivery Systems 査読有り

玉川　雅章

FEDSM2008(2008 ASME Fluids Engineering Conference) 55319 - 55319 2008年04月

Fundamental study of shock induced acceleration of cell growth by plane shock waves 査読有り

M. Tamagawa,N. Ishimatsu

Acoustics 2008 printing 2008年04月

EFFECTS OF SHOCK WAVES ON ACCELERATION OF CELL GROWTH RATE BY SHOCK TUBE 査読有り

Masaaki TAMAGAWA,Norikazu ISHIMATSU

Proceedings of IMECE2008 (2008 ASME International Mechanical Engineering Congress and Exposition) 68216 - 68216 2008年04月

Development of Microcapsules Including a Gas Bubble for Shock Wave Based Drug Delivery 査読有り

Masaaki Tamagawa,Norikazu Ishimatsu

Proceedings of FEDSM2008(2008 ASME Fluids Engineering Conference) 55320 - 55320 2008年04月

CFD STUDY OF THROMBUS FORMATION ON SHEAR BLOOD FLOWS BY USING MODIFIED LATTICE BOLTZMANN METHOD AND THROMBUS OBSERVATION 査読有り

Masaaki TAMAGAWA

2008 Summer Bioengineering Conference (SBC2008) 193087 - 193087 2008年04月

CFD study of thrombus formation on shear blood flows for developing prediction method of thrombus 査読有り国際誌

Tamagawa M.

2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007 2 FORA ( PART A ) 667 - 668 2007年12月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

This paper describes development of the prediction method of thrombus formation by Computational Fluid Dynamics (CFD) on pipe orifice shear flows. These shear flows are typical models of the flow in the rotary blood pump. In this investigation, the thrombus formation in blood plasma flow is visualized, and modified lattice Boltzmann method are used to predict the backward forwarding step flow, that is simple model of the orifice flow. Copyright © 2007 by ASME.

DOI： 10.1115/FEDSM2007-37074

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=40449137403&origin=inward

Effects of underwater shock wave on endothelial cells in vitro using shock tube 査読有り国際誌

Tamagawa M., Ishimatsu N.

2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007 2 FORA ( PART A ) 763 - 764 2007年12月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

This paper describes effects of shock waves on cells to certificate the angiogenesis by shock wave (pressure wave) in the clinical application such as ESW (Extracorporeal Shock Wave). Especially, to investigate the effects of shock waves on the endothelial cells in vitro, the cells worked by plane shock waves using shock tube apparatus are observed by microscope. The peak pressure working on the endothelial cells at the test case is 0.4 MPa. After working shock waves on suspended cells, the disintegration, shape and growth rate (area per one cell and population of cells) are measured by image processing. It is found that the younger generation cells have small differences of shape index, and the growth rate of the shock-worked cells from 0 to 4h are clearly high compared with control ones. It is concluded that once shock waves worked, some of them are disintegrated, but the other has capacity to increase growth rate of cell culture in vitro. This preliminary result will be applied to fundamental investigations about shock wave stimulus on several kinds of cells in future. Copyright © 2007 by ASME.

DOI： 10.1115/FEDSM2007-37637

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=40449089217&origin=inward

Simulation of thrombus formation using Lattice Boltzmann Method 査読有り国際誌

Kaneda H., Tamagawa M.

Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B 73 ( 12 ) 2433 - 2439 2007年12月

担当区分：責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

This paper describes the prediction of index of thrombus formation in shear blood flow by computational fluid dynamics (CFD) with Lattice Boltzmann Method (LBM), applying to backward facing flow, which is simple model of shear flow in the rotary blood pumps and complicated geometry of medical fluid devices. Assuming that the blood flow is multiphase flow composed of blood plasma and solid protein, the effects of surface tension and adhesion force to the wall are added to LBM computation. It is found that the thrombus formation occurs just after the reattachment point and behind the step. These results correspond to our previous observation results. To predict thrombus formation in every case of blood flow, effects of threshold level of physical parameters such as shear rate, adhesion force (effective distance from the wall) are estimated.

DOI： 10.1299/kikaib.73.2433

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=40449089786&origin=inward

Fundamental investigations of driving force of microcapsule for drug delivery systems using the principle of neutrophils chemotaxis 査読有り国際誌

Tamagawa M.

Proceedings of the 2nd Frontiers in Biomedical Devices Conference 2007 145 - 146 2007年11月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

This paper describes the effects of gradient of cytokine concentration on Chemotaxis of neutrophile by observing the motion in liquid with adding cytokine concentration. The aim of this investigation is to distinguish the driving force by Marangoni effects from amebic motion. Copyright © 2007 by ASME.

DOI： 10.1115/BioMed2007-38091

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=36248965091&origin=inward

Prototype of microcapsule for shock wave drug delivery systems and its design 査読有り国際誌

Tamagawa M.

Proceedings of the 2nd Frontiers in Biomedical Devices Conference 2007 51 - 52 2007年11月

担当区分：筆頭著者記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）

This paper describes the trial of making microcapsules including a bubble for shock wave drug delivery systems, evaluation of their mechanical properties and development of new driving mechanics of the microcapsules. Copyright © 2007 by ASME.

DOI： 10.1115/BioMed2007-38088

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=36249008979&origin=inward

Development of predicition method of thrombus formation in shear flow by CFD 査読有り

Miki Hiramoto,Katsuya Fuushima,Masaaki Tamagawa

3rd Asian Pacific Conference on Biomecfhanics 2007 1 71 - 71 2007年11月

Effects of plane shock wave on endothelial cells using shock tube 査読有り

Norikazu Ishimatsu,Masaaki Tamagawa,Seiya Iwakura

3rd Asian Pacific Conference on Biomechanics 2007 170 - 170 2007年11月

Simulation of thrombus formation in a shear blood flow by lattice Boltzmann method 査読有り

M. Tamagawa,K. Fukushima,M. Hiramoto,S. Nagahama

Proc. of 2007 Joint Congress of JSAO and IFAO Printing 2007年10月

Development of Microcapsules Including Gas Bubbles for Shock Wave DDS, 査読有り

M. Tamagawa,N. Ishimatsu

Proceedings of ICBB2007, The 1st International Colloquium on Dynamics, Physics and Chemistry of Bubbles and Gas-Liquid Boundaries Printing 2007年09月

Acceleration of cell growth rate by　plane sho ck wave using shock tube 査読有り

M. Tamagawa,N. Ishimatsu,S. Iwakura,and I. Yamanoi

Proceedings of 26th International Symp. Shock Waves 1 Printing 2007年07月

CFD Study of Thrombus Formation on Shear Blood Flows for Developing Prediction Method of Thrombus 査読有り

玉川　雅章

Proceedings of FEDSM2007, 5th Joint ASME/JSME Fluids Engineering Conference 37074 - 37074 2007年07月

Prototype of microcapsule for shock wave drug delivery systems and its design 査読有り

玉川　雅章

Proc. of ASME Frontiers in Biomedical Devices Conference 38088 - 38088 2007年06月

Fundamental investigation of driving force of microcapsule for drug delivery systems using the principle of neutrophile chemotaxis 査読有り

玉川　雅章

Proc. of ASME Frontiers in Biomedical Devices Conference 38091 - 38091 2007年06月

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