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World Journal of Clinical Cases 2019年第10期7卷 1149-1154页

作者： Koichi Kimura Kensuke Kudo Tomoharu Yoshizumi Takeshi Kurihara Shohei Yoshiya Yohei mano Kazuki Takeishi Shinji Itoh Noboru Harada Toru Ikegami Tetsuo Ikeda Department of Endoscopy and Endoscopic Surgery Fukuoka Dental CollegeFukuoka 814-0175Japan Department of Surgery and Science Graduate School of Medical SciencesKyushu UniversityFukuoka 812-8582Japan

BACKGROUND In patients with large stones in the common bile duct(CBD),advanced treatment modalities are generally ***,we present an interesting case of a huge CBD stone treated with electrohydraulic lithotripsy(EHL)by the percutaneous approach and rendezvous endoscopic retrograde cholangiography(ERC)using a nasal *** SUMMARY A 91-year-old woman underwent ERC for a symptomatic large CBD stone with a diameter of 50 *** was referred to our institution after the failure of lithotomy by ERC,and after undergoing percutaneous transhepatic biliary *** attempted to fragment the stone by transhepatic cholangioscopy using ***,the stones were too large and partly soft clay-like for ***,we attempted lithotomy with ERC and cholangioscopy by the rendezvous technique using a nasal endoscope and achieved complete *** complication was observed at the end of this *** Cholangioscopy by rendezvous technique using a nasal endoscope is a feasible and safe endoscopic method for removing huge CBD stones.

关键词： Common bile duct stone Electrohydraulic lithotripsy Rendezvous technique Endoscopic retrograde cholangiography Nasal endoscop Case report

Finite-difference time-domain simulation of partial discharges in a gas insulated switchgear

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High Voltage 2016年第1期1卷 52-56页

作者： hiroki Tanaka Daiki Tanahashi Yoshihiro Baba Naoto Nagaoka Naoki Okada Hideto Ohki Masayasu Takeuchi Department of Electrical Engineering Doshisha UniversityKyotanabeKyoto 610-0321Japan Nissin Electric Co. LtdUkyokuKyoto 615-8686Japan

It is important to estimate the current magnitude and charge amount of a partial discharge (PD) in a gasinsulatedswitchgear (GIS). In this study, electromagnetic fields generated by a PD in an 84 kV-class three-phase GIS fortesting have been measured with a voltage probe installed on the outer surface of an insulation spacer of the GIS tank,and the corresponding simulations have been carried out using the three-dimensional finite-difference time-domain(FDTD) method. FDTD-computed time-domain voltages across spacers agree reasonably well with the correspondingmeasured ones, and the current magnitude of PD and its charge amount have been estimated.

关键词： magnitude difference insulation

Logic and computer design fundamentals 3rd ed.

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Digital design 4th ed.

丛书名： HZ books

2008年

作者： mano M. Morris

本书重点介绍逻辑与计算机设计的基本概念，同时反映这些基本概念在技术和设计过程演变中的重要性。全书内容可分为三个部分：第1章到第6章介绍逻辑设计，第7章到第9章讲述数字系统设计技术，第10章到第14章集中介绍计算机设计技术。

ISBN: (纸本)9787111235170

关键词： Electronic digital computers Circuits Logic circuits Logic design

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A new sodium iron phosphate as a stable high-rate cathode material for sodium ion batteries

丛书名：国外电子与通信教材系列Aguo wai dian zi yu tong xin jiao cai xi lie

2008年

作者： mano M. Morris

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Nano Research 2018年第12期11卷 6197-6205页

作者： Xiaobo Zhu Takashi Mochiku hiroki Fujii Kaibin Tang Yuxiang Hu Zhenguo Huang Bin Luo Kiyoshi Ozawa Lianzhou Wang Nanomatefials Centre School of Chemical Engineering and Australian Institute for Bioengineering and NanotechnologyThe University of QueenslandQLD 4072Australia National lnstitute for Matefials Science 1-2-1SengenTsukuba-cityIbaraki 305-0047Japan Hefei National Laboratory for Physical Science at Microscale and Department of Chemistry University of Science and Technology of ChinaHefei 230026China School of Civil and Environmental Engineering University of Technology SydneyNSW 2007Australia

Low-cost room-temperature sodium-ion batteries (SIBs) are expected to promote the development of stationary energy storage applications. However, due to the large size of Na+, most Na+ host structures resembling their Li+ counterparts show sluggish ion mobility and destructive volume changes during Na ion (de)intercalation, resulting in unsatisfactory rate and cycling performances. Herein, we report a new type of sodium iron phosphate (Na0.71Fe1.07PO4), which exhibits an extremely small volume change (~ 1%) during desodiation. When applied as a cathode material for SIBs, this new phosphate delivers a capacity of 78 mA·h·g−1 even at a high rate of 50 C and maintains its capacity over 5,000 cycles at 20 C. In situ synchrotron characterization disclosed a highly reversible solid-solution mechanism during charging/discharging. The findings are believed to contribute to the development of high-performance batteries based on Earth-abundant elements.

关键词： sodium iron phosphate low volume change cathode material long cycle rate performance sodium ion batteries

Optimum Dark Adaptation Period for Evaluating the Maximum Quantum Efficiency of Photosystem II in Ozone-Exposed Rice Leaves

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American Journal of Plant Sciences 2013年第9期4卷 1750-1757页

作者： hiroki hiroki Kobayakawa Katsu Imai School of Agriculture Meiji University Kawasaki Japan.

Because the transient O3 injury of leaves is lost with time, the evaluation of O3 effect on the maximum quantum efficiency of PSII (Fv/Fm) is difficult. Thus, the authors examined Fv/Fm in rice leaves exposed to different O3 concentrations (0, 0.1, and 0.3 cm3·m-3, expressed as O0, O0.1, and O0.3) under different dark adaptation periods (0, 1, 5, 10, 20, and 30 min, expressed as D0, D1, D5, D10, D20, and D30) to ascertain its optimum time span. Fv/Fm was inhibited by O3;however in the O0 and O0.1 plants, it recovered during dark adaptation. In the O0.3 plants, Fv/Fm decreased gradually with time. F0 was found to be increased by O3, and it increased further in the O0.3 plants during dark adaptation. Under a high light intensity, Fm was decreased by O3, and the O3-induced damage to Fv/Fm was therefore more pronounced. However, the sensitivity of

关键词： Dark-Adapted State Oryza sativa Ozone Stress Photosystem II Quantum Efficiency

Influence of cognitive impairment on cardiac mortality after percutaneous coronary intervention in very elderly patients: a retrospective observational study

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Journal of Geriatric Cardiology 2019年第10期16卷 733-740页

作者： Tomoko Tomioka Ryokichi Takahashi Yosuke Ikumi Shuhei Tanaka Yoshitaka Ito hiroki Shioiri Jiro Koyama Kanichi Inoue Department of Cardiology South-Miyagi Medical Center

Background Cognitive impairment (CI) increases cardiac mortality among very elderly patients. Percutaneous coronary intervention (PCI) for ischemic heart disease (IHD) patients is considered a favorable strategy for decreasing cardiac mortality. Here, we investigated the influence of CI on cardiac mortality after PCI in very elderly patients. Methods We performed a retrospective observational analysis of patients who received PCI between 2012 and 2014 at the South Miyagi Medical Center, Japan. IHD patients over 80 years old who underwent the Mini-Mental State Examination for CI screening during hospitalization and/or who had been diagnosed with CI were included. Participants were divided into CI and non-CI groups, and cardiac mortality and incidence of adverse cardiac events in a 3-year follow-up period were compared between groups. Statistical analyses were performed using the t-test,χ^2 test, and multivariable Cox regression analysis, with major comorbid illness and conventional cardiac risk factors as confounders. Results Of 565 patients, 95 were included (41 CI, 54 non-CI). Cardiac mortality during the follow-up period was significantly higher in the CI group (36%) compared with the non-CI group (13%)(OR = 4.3, 95% CI: 1.56–11.82, P < 0.05). CI was an independent cardiac prognostic factor after PCI and, for CI patients, living only with a CI partner was an independent predictor of cardiac death within three years. Conclusions CI significantly affected cardiac prognosis after PCI in very elderly patients, particularly those living with a CI partner. To improve patients’ prognoses, social background should be considered alongside conventional medical measures.

关键词： Cognitive impairments Family background Mortality Octogenarians Percutaneous coronary intervention

Real-time energy optimization of HEVs under-connected environment: a benchmark problem and receding horizon-based solution

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Control Theory and Technology 2022年第2期20卷 145-160页

作者： Fuguo Xu hiroki Tsunogawa Junichi Kako Xiaosong Hu Shengbo Eben Li Tielong Shen Lars Eriksson Carlos Guardiola Department of Engineering and Applied Sciences Sophia UniversityTokyo 102-8554Japan Higashi-Fuji Research Center Toyota Motor Corporation.Shizuoka 410-1107Japan The State Key Laboratory of Mechanical Transmissions Chongqing UniversityChongqing 400044China The State Key Laboratory of Automotive Safety and Energy Tsinghua UniversityBeijing 100084China Vehicular Systems Department Electrical EngineeringLinkoping UniversitySE 58183Linkoping.Sweden Departamento de Maquinas y Motores Termicos Universitat Politecnica de Valencia.Camino de Vera s/n46022 ValenciaSpain

In this paper,we propose a benchmark problem for the challengers aiming to energy efficiency control of hybrid electric vehicles(HEVs)on a road with ***,it is assumed that the targeted HEVs are in the connected environment with the obtainment of real-time information of vehicle-to-everything(V2X),including geographic information,vehicle-to-infrastructure(V2I)information and vehicle-to-vehicle(V2V)*** provided simulator consists of an industrial-level HEV model and a traffic scenario database obtained through a commercial traffic simulator,where the running route is generated based on real-world data with slope and intersection *** benchmark problem to be solved is the HEVs powertrain control using traffic information to fulfill fuel economy improvement while satisfying the constraints of driving safety and travel *** show the HEV powertrain characteristics,a case study is given with the speed planning and energy management strategy.

关键词： Powertrain control Connected and automated vehicles Hybrid electric vehicles Vehicle-to-everything

Effects of substrate and transfer on CVD-grown graphene over sapphire-induced Cu films

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Science China Chemistry 2014年第6期57卷 895-901页

作者： HU BaoShan WEI ZiDong AGO hiroki JIN Yan XIA MeiRong LUO ZhengTang PAN QingJiang LIU YunLing School of Chemistry and Chemical Engineering Chongqing University Institute for Materials Chemistry and Engineering Kyushu University Department of Chemical and Biomolecular Engineering Hongkong University of Science and Technology Key Laboratory of Functional Inorganic Material Chemistry Ministry of EducationHeilongjiang University State Key Laboratory of Inorganic Synthesis and Preparative Chemistry College of ChemistryJilin University

We differentiated the effects of Cu films deposited on single crystalline a-,r-,and c-plane sapphire substrates upon graphene films synthesized with atmospheric pressure chemical vapor deposition(CVD).The data illustrate that the realization of high-crystalline Cu film is dependent not only on the crystallinity of underlying substrate,but also on the symmetric match of crystallographic geometry between metal film and *** also systematically investigated the effects of PMMA removal on the Raman ID/IG and IG/I2D values of transferred *** results reveal that different PMMA removal methods do not alter the ID/IG values;instead,the residue of PMMA increases the IG/I2D values and the thermal decomposition of PMMA leads to higher IG/I2D values than the removal of PMMA with *** effects of PMMA removal on variations of the Raman spectra are also discussed.

关键词： graphene CVD growth sapphire substrate crystallographic match transfer Raman spectrum

VISUALIZATION OF TURBULENT REACTIVE JET BY USING DIRECT NUMERICAL SIMULATION

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International Journal of Modeling, Simulation, and Scientific Computing 2013年第S1期4卷 70-85页

作者： TOMOAKI WATANABE YASUHIKO SAKAI KOUJI NAGATA OSAMU TERASHIMA hiroki SUZUKI TOSHIYUKI HAYASE YASUMASA ITO Department of Mechanical Science and Engineering Nagoya University Nagoya Aichi464-8603Japan Department of Engineering Physics Nagoya Institute of Technology Nagoya Aichi466-8555Japan Institute of Fluid Science Tohoku University SendaiMiyagi980-8577Japan

Direct numerical simulation(DNS)of turbulent planar jet with a second-order chemical reaction(A+B→R)is performed to investigate the processes of mixing and chemical reactions in spatially developing turbulent free shear *** A is premixed into the jet flow,and reactant B is premixed into the ambient *** is performed at three different Damk¨ohler numbers(Da=0.1,1,and 10).Damk¨ohler number is a ratio of a time scale of a flow to that of chemical reactions,and in this study,the large Da means a fast chemical reaction,and the small Da means a slow chemical *** visualization of velocity field shows that the jet flow is developed by entraining the ambient *** visualization of concentration of reactant A shows that concentration of reactant A for Da=1 and 10 becomes very small in the downstream region because the chemical reaction consumes the reactants and reactant A is diffused with the jet *** comparison of the profiles of chemical reaction rate and concentration of product R,it is found that product R for Da=10 is produced by the chemical reaction at the interface between the jet and the ambient fluids and is diffused into the jet flow,whereas product R for Da=0.1 is produced in the jet flow after reactants A and B are well mixed.

关键词： Turbulent flow direct numerical simulation jet.