Search Results 1-20 of 1859

  • Tissue suction-mediated gene transfer to the beating heart in mice

    Taniguchi Yota , Oyama Natsuko , Fumoto Shintaro , Kinoshita Hideyuki , Yamashita Fumiyoshi , Shimizu Kazunori , Hashida Mitsuru , Kawakami Shigeru

    … We previously developed an in vivo site-specific transfection method using a suction device in mice; … namely, a tissue suction-mediated transfection method (tissue suction method). … The aim of this study was to apply the tissue suction method for cardiac gene transfer. …

    PLOS ONE 15(2), 2020-02-06

    IR 

  • Tissue suction-mediated gene transfer to the beating heart in mice

    Taniguchi Yota , Oyama Natsuko , Fumoto Shintaro , Kinoshita Hideyuki , Yamashita Fumiyoshi , Shimizu Kazunori , Hashida Mitsuru , Kawakami Shigeru

    … We previously developed an in vivo site-specific transfection method using a suction device in mice; … namely, a tissue suction-mediated transfection method (tissue suction method). … The aim of this study was to apply the tissue suction method for cardiac gene transfer. …

    PLOS ONE 15(2), e0228203, 2020-02-06

    IR 

  • A Case of Transient ST Elevation Following Intrathoracic Distilled Warm Water Irrigation after Pericardiotomy during Thoracic Surgery  [in Japanese]

    TAKIYAMA Sayuri , KONO Yasuhiro , HORISHITA Takafumi , KAWASAKI Takashi

    … Sudden ST elevation in ECG lead Ⅱ with a drop in blood pressure was noted following intrathoracic irrigation with warm distilled water. … These events gradually normalized after suction of the water from the pericardial space. …

    THE JOURNAL OF JAPAN SOCIETY FOR CLINICAL ANESTHESIA 40(2), 128-134, 2020

    J-STAGE 

  • Experimental investigation on friction drag reduction on an airfoil by passive blowing

    HIROKAWA Shiho , ETO Kaoruko , FUKAGATA Koji , TOKUGAWA Naoko

    … In the present study, uniform blowing is passively driven by the pressure difference on a wing surface between suction and blowing regions. … The suction and the blowing regions are respectively set around the leading edge and the rear part of the upper surface of the Clark-Y airfoil in order to ensure a sufficient pressure difference for passive blowing. …

    Journal of Fluid Science and Technology 15(2), JFST0011-JFST0011, 2020

    J-STAGE 

  • Verification of Cavitation Damage Prevention of Mixed Flow Pump Impeller by Trailing Edge Shape Modification  [in Japanese]

    SAKUTA Minoru , OGURA Koji , INOUE Hiroshi

    … <p>Among mixed flow pumps used in various applications, movable-blade type mixed flow pumps have advantages, that is, maximizing the pump efficiency and the suction performance by adjusting the blade angle appropriate to the operating discharge flow rate. … In addition, on the basis of the pressure distribution obtained by numerical simulation of the impeller alone, we investigated the cause of erosion and the measures to avoid the erosion. …

    Turbomachinery 48(2), 78-84, 2020

    J-STAGE 

  • Effects of the Guiding Tank on Flow Characteristics inside the Double-Suction Squirrel-Cage Fan for Range Hood

    Zhang Yingkun , Li Kunhang , Li Yunlong , Li Jingyin

    … The effects of the guiding tank on flow characteristics inside a double-suction squirrel-cage fan for the range hood were numerically investigated in this paper. … Numerical results were validated with the experimental data for total pressure. … The inlet distortion will deteriorate the aerodynamic performance of the squirrel-cage fan and cause obvious differences in the velocity field, the pressure field and the vortex structures inside the fan. …

    International Journal of Fluid Machinery and Systems 13(1), 203-213, 2020

    J-STAGE 

  • Analysis and Optimization on U-shaped Damping Groove for Flow Ripple Reduction of Fixed Displacement Axial-Piston Pump

    HONG Hao-cen , ZHANG Bin , YU Min , ZHONG Qi , YANG Hua-yong

    … The periodic flow ripples and pressure pulsations in a fixed-displacement axial-piston pump will directly impact its dynamic characteristics. … To reduce the discharge flow ripples and pressure pulsations is one of the design challenges. … The optimization models based on the root-mean-square, the pulsation and the suction-extrusion ratio are proposed. …

    International Journal of Fluid Machinery and Systems 13(1), 126-135, 2020

    J-STAGE 

  • Aerodynamics of Owl-like Wing Model at Low Reynolds Numbers

    AONO Hikaru , KONDO Katsutoshi , NONOMURA Taku , ANYOJI Masayuki , OYAMA Akira , FUJII Kozo , YAMAMOTO Makoto

    … curve slope, which is due to an increase in the suction peaks in conjunction with the change in type of separation, the formation of a laminar separation bubble (LSB), and pressure recovery on the pressure side. … The generation of the LSB on the suction and/or pressure sides at the <i>Re</i> … are seen, while reattachments are observed only on the pressure side at the <i>Re</i> …

    TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 63(1), 8-17, 2020

    J-STAGE 

  • Intra-left ventricular flow dynamics in diastolic dysfunction  [in Japanese]

    岩野 弘幸

    Heart view 23(7), 644-648, 2019-07

    Ichushi Web 

  • REDUCTION OF SECONDARY FLOW IN TURBINE CASCADE BY NON-AXISYMMETRIC ENDWALL CONTOURING : INFLUENCE OF AXIAL-WISE DISTRIBUTION RANGE OF CONVEX AND CONCAVE CONTOURING  [in Japanese]

    板東 翼

    … The secondary flow loss due to the passage vortex can be reduced by locally reducing the pitch wise pressure gradient near the endwall. … The experimental results clarified that the reduction of the axial-wise range of the convex-concave curved surface intensified the cross-flow locally by increasing the curvature of the convex curved surface generated along the boundary between the plane endwall and the concave curved surface distributed near suction surface, and consequently increased the loss. …

    法政大学大学院紀要. 理工学・工学研究科編 (60), 1-7, 2019-03-31

    IR  DOI 

  • NUMERICAL ANALYSIS OF FLOW IN ULTRA-HIGHLY LOADED TURBINE CASCADE WITH SQUEALER TIP : EFFECTS OF SQUEALER TIP CONFIGURATION  [in Japanese]

    田澤 紘之

    … The numerical calculations for the internal flows of UHLTC were performed for two types of squealer tip which were different in the distributed area of squealer cavity on the blade tip surface, one is the full-squealer (Type1) with the squealer cavity distributed on the whole of blade tip surface and another is the partial-squealer (Type2) with the squealer cavity only along the pressure side. …

    法政大学大学院紀要. 理工学・工学研究科編 (60), 1-7, 2019-03-31

    IR  DOI 

  • Clinical Experience on a Digital Low-Pressure Continuous Suction Unit Having a Trend Forecasting Function for Evaluating Lung Air-Leak

    Isaka Tamami , Ogihara Akira , Mitsuboshi Shota , Matsumoto Takako , Kanzaki Masato

    東京女子医科大学雑誌 = Journal of Tokyo Women's Medical University 89(1-6), 29-33, 2019-02

  • Study of Scroll Compressor with Suction Chamber Injection  [in Japanese]

    岩竹 渉 , 河村 雷人 , 関屋 慎 , 佐々木 圭 , 髙村 祐司

    日本冷凍空調学会論文集 = Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers 36(4), 181-188, 2019

  • A study on fluidic vector control of supersonic jet flow by Coanda nozzle  [in Japanese]

    SHAKOUCHI Toshihiko , FUKUSHIMA Shunsuke , TANOUE Tsubasa , TSUJIMOTO Koichi , ANDO Toshitake

    … The Co-nozzle has eight suction pipes on the circumference of the inlet. … The jet from the pipe nozzle entrains the fluid around from the suction pipes and flows straight. … When some suction pipes are closed the pressure between the jet and Co-nozzle wall decreases and subsequently the jet deflects and attaches to the wall. …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), S05113P, 2019

    J-STAGE 

  • Large-eddy simulations of flows controlled by DBD plasma actuator for better wing performance at cruise conditions  [in Japanese]

    Ogawa Takuto , Asada Kengo , Tatsukawa Tomoaki , Fujii Kozo

    … The DBD plasma actuator is installed at 5% of the chord length from the leading edge on the airfoil surface of the suction side. … As a result, the separation bubble becomes shorter and a pressure recovery occurs at the location closer to the leading edge compared with the case without the control. …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), S05210, 2019

    J-STAGE 

  • A Study on Two-Phase Suction Performance of a Turbopump  [in Japanese]

    TANAKA Yohei , WATANABE Satoshi , OHASHI Satoru , SAKATA Akira , MATSUNAGA Yasushi

    … The almost homogeneous bubbly two-phase flow condition was successively set by the uniform aeration of gas dissolved in water upstream of the test pump, which was realized by a sudden pressure decrease with the valve closure. … The gas-liquid volumetric flow rate ratio was estimated from the pump inlet pressure and the initial amount of dissolved oxygen under the assumption of mass equilibrium condition of the local dissolved oxygen. …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), J05502, 2019

    J-STAGE 

  • Numerical Simulation of Unsteady Flows Affected by Stator-Rotor Blade Secular Change in Middle Pressure First-Stage Steam Turbines  [in Japanese]

    MIYAZAWA Hironori , UEMURA Akihiro , FURUSAWA Takashi , YAMAMOTO Satoru , YONEZAWA Koichi , UMEZAWA Shuichi , Ohmori Shuichi

    … <p>This paper presents numerical simulation of unsteady flows through first-stage stator and rotor blade rows in an actual middle pressure steam turbine while setting manufactured and secular-changed blades. … As a result, the secular-changed stator trailing edge became thinner and the stator suction side near the throat became thicker than those of manufactured stator blade. …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), J05512, 2019

    J-STAGE 

  • Aerodynamic Loss Characteristics of LP Turbine Cascades for Aero-Engines with High Bypass Ratio  [in Japanese]

    FUNAZAKI Ken-ichi , ITO Kodai , OKAMURA Yasuhiro

    … <p>This study deals with detailed experimental and numerical investigations on aerodynamic loss of linear cascades composed of several types of low-pressure turbine airfoils developed by use of different design concepts. … Important aerodynamic indices of the cascade are Zweifel factor, flow deceleration rate over the suction surface and velocity ratio. …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), J05510, 2019

    J-STAGE 

  • Study on air cooling system using negative air pressure in the duct  [in Japanese]

    KOYAMA Taihei , NAKAHAMA Takafumi

    … In order to solve these problems, a baffle is provided in the duct-like air passage to increase the flow velocity in the vicinity of the heating wall, and the negative pressure is used in order to intake the low temperature external air for cooling the heating element. …

    The Proceedings of Mechanical Engineering Congress, Japan 2019(0), J05115, 2019

    J-STAGE 

  • Influence of radial labyrinth seal on pump performance  [in Japanese]

    KANEMORI Yuji , HANDA Yasuo

    … In recent years, an improvement of the sealing performance of labyrinth seals has been required due to the increasing pressure of turbo machines. … First, radial labyrinth seals were tested in an actual double suction pumps. … It was also confirmed by various experiments that the radial labyrinth seal have the effect of increasing pump suction specific speed. …

    The Proceedings of the Dynamics & Design Conference 2019(0), 601, 2019

    J-STAGE 

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