Search Results - "SHIMOGONYA, Yuji"

Numerical methods for simulating blood flow at macro, micro, and multi scales by Imai, Yohsuke, Omori, Toshihiro, Shimogonya, Yuji, Yamaguchi, Takami, Ishikawa, Takuji

“…Abstract In the past decade, numerical methods for the computational biomechanics of blood flow have progressed to overcome difficulties in diverse…”
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What causes the spatial heterogeneity of bacterial flora in the intestine of zebrafish larvae? by Yang, Jinyou, Shimogonya, Yuji, Ishikawa, Takuji

“…•Taxis could cause the bacterial aggregation in the intestine.•Taxis stronger than diffusion and flow induces aggregation.•A computational model was developed…”
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Mixing and pumping functions of the intestine of zebrafish larvae by Yang, Jinyou, Shimogonya, Yuji, Ishikawa, Takuji

“…Due to its transparency, the intestine of zebrafish larvae has been widely used in studies of gastrointestinal diseases and the microbial flora of the gut…”
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Can temporal fluctuation in spatial wall shear stress gradient initiate a cerebral aneurysm? A proposed novel hemodynamic index, the gradient oscillatory number (GON) by Shimogonya, Yuji, Ishikawa, Takuji, Imai, Yohsuke, Matsuki, Noriaki, Yamaguchi, Takami

“…Abstract We propose a new hemodynamic index for the initiation of a cerebral aneurysm, defined by the temporal fluctuations of tension/compression forces…”
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Response of human endothelial cells to the vortex flow in an immediately expanding flow chamber by KANNO, Kenta, AKABANE, Hyu, SHIMOGONYA, Yuji, KATAOKA, Noriyuki

“…Complex blood flow patterns play a significant role in atherogenesis. Multiple studies have reported that early lesion occurs primarily in the regions of flow…”
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Helical swimming motion driven by coordinated rotation of flagellar apparatus in marine bacterial cells by SHIMOGONYA, Yuji, RUAN, Juanfang, KATO, Takayuki, ISHIKAWA, Takuji, NAMBA, Keiichi, WU, Long-Fei, NISHIYAMA, Masayoshi

“…The magnetotactic bacterium MO-1 possesses a pair of unique flagellar apparatuses. Each apparatus comprises seven flagella and 24 thin fibrils enclosed in a…”
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Torque-induced precession of bacterial flagella by Shimogonya, Yuji, Sawano, Yoichiro, Wakebe, Hiromichi, Inoue, Yuichi, Ishijima, Akihiko, Ishikawa, Takuji

“…The bacterial flagellar motor is an ion-driven rotary machine in the cell envelope of bacteria. Using a gold nanoparticle as a probe, we observed the…”
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Abstract W MP44: Investigations Using a Combination of Computational Fluid Dynamics Technique and an Animal Model of Experimentally Induced Cerebral Aneurysms Suggest Important Roles of Wall Shear Stress on the Cerebral Aneurysm Development by Fukuda, Shunichi, Shimogonya, Yuji, Fukuda, Miyuki, Hasegawa, Koji

“…Abstract only We have a series of reports suggesting that an increase in hemodynamic factors, especially wall shear stress, plays a central role in cerebral…”
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Computational and experimental studies into the hemodynamics of cerebral aneurysms by Yuji SHIMOGONYA, Shunichi FUKUDA

“…Rupture of cerebral aneurysms (CAs) is a major cause of life-threatening subarachnoid hemorrhage. It is still difficult to predict CA rupture since little is…”
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Sensitivity of the gradient oscillatory number to flow input waveform shapes by Shimogonya, Yuji, Kumamaru, Hiroshige, Itoh, Kazuhiro

“…Abstract The sensitivity of the gradient oscillatory number (GON), which is a potential hemodynamic indicator for cerebral aneurysm initiation, to flow input…”
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Abstract W P79: Computational Fluid Dynamics Analysis in Roles of Hemodynamic Factors on the Development of Cerebral Aneurysms by Fukuda, Shunichi, Shimogonya, Yuji, Tsukahara, Tetsuya, Imoto, Yasuhide, Fukuda, Miyuki

“…Abstract only Cerebral aneurysms are known to be more induced in the asymmetric-shaped circle of Willis, suggesting that hemodynamic stress is involved in…”
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Role of disturbed wall shear stress in the development of cerebral aneurysms by Shimogonya, Yuji, Fukuda, Shunichi

“…Although the hemodynamics of cerebral aneurysms have been extensively studied using patient-specific computational fluid dynamics techniques, no specific…”
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Hemodynamic predictors for the onset of ischemic stroke due to carotid artery stenosis using a computational fluid dynamics analysis by Fukuda, Shunichi, Shimogonya, Yuji

“…Abstract only Background: Carotid artery stenosis is one of the major diseases responsible for atherosclerotic ischemic stroke. It is difficult to predict the…”
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Abstract TP126: Evaluation of Pre-Stenotic Hemodynamic Differences in Unilateral Carotid Stenosis After Artificial Carotid Plaque Removal by Fukuda, Shunichi, Shimogonya, Yuji

“…Abstract only Introduction: There is still insufficient to determine which carotid stenosis is likely to progress. The carotid artery shape is an independent…”
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Abstract WMP36: Wall Shear Stress Disturbances May Be Key Requirements for Cerebral Aneurysm Growth: Computational Flow Dynamic Analysis of 15 Cases in NHO CFD ABO Study by Fukuda, Shunichi, Shimogonya, Yuji

“…Abstract only Introduction: In 2013, we conducted a multi-institutional prospective observational study in order to identify hemodynamic environments involved…”
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Examination of hemodynamic environments of carotid stenosis with computational fluid dynamics by Fukuda, Shunichi, Shimogonya, Yuji

“…Introduction Carotid arterial geometry is an independent risk factor for carotid stenosis, in which hemodynamics, classically low oscillatory shear stress, is…”
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Abstract TP79: Significant Correlations between Risk Factors for Rupture of Cerebral Aneurysms and Hemodynamic Factors by Using Computational Flow Dynamic (CFD) Analysis and Multivariate Analysis by Shimogonya, Yuji, Fukuda, Shunichi

“…Abstract only Background and purpose: Although it is thought that hemodynamic factors are involved in cerebral aneurysm rupture, details are unknown. Using…”
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Abstract WP83: Wall Shear Stress Strength Over the Cerebral Aneurysm is Drastically Affected by Aneurysm Location While the Magnitude of Disturbed Flow is Closely Related to Aneurysm Size and Surface Area by Fukuda, Shunichi, Shimogonya, Yuji

“…Abstract only Background and purpose: The rupture rate of cerebral aneurysms varies according to the aneurysm size and location. Although several reports…”
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Evaluation of Streamwise Waveform on a High-Speed Water Jet by Detecting Trajectories of Two Refracted Laser Beams by Itoh, Kazuhiro, Iwata, Yasuo, Kumamaru, Hiroshige, Shimogonya, Yuji

“…Free surface fluctuations on a high-speed water jet were measured by a laser beam refraction technique. This method can be used to obtain quantitative…”
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Endothelial cells differentially sense laminar and disturbed flows by altering the lipid order of their plasma and mitochondrial membranes by Yamamoto, Kimiko, Shimogonya, Yuji, Maeno, Ryohei, Kawabe, Kenshiroh, Ando, Joji

“…Endothelial cells (ECs) experience two different blood flow patterns: laminar and disturbed flow. Their responses to laminar flow contribute to vascular…”
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