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应用甲硝唑治疗日本人群中耐克拉霉素幽门螺杆菌感染的效果

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世界核心医学期刊文摘（胃肠病学分册） 2005年第5期1卷 43-43页

作者： s.imoyama T. fukuda s. Mikami T. 赵天智 Firs. Dept. of Internal Medicine Hirosaki Univ. School of Medicine 5 Zaifu-cho Hirosaki 036-8562 Japan

Background: Eradication of Helicobacter pylori has.become a common treatment for s.veral dis.as.s. There is.an increas. in antibiotic-res.s.ant s.rains. which caus.s.the failure of eradication. The aim of this.s.udy was.to inves.igate the us.fulnes. of metronidazole for the treatment of H. pylori infection in patients.who failed eradication therapy. Methods. s.venty H. pylori pos.tive patients.who had failed eradication treatment with firs.-line triple therapy, which cons.s.ed of a proton pump inhibitor, amoxicillin, and clarithromycin, were enrolled into the s.udy. Before the s.cond-line therapy, patients.underwent endos.opy to obtain H. pylori s.rains.to tes. s.s.eptibility to antibiotics. Lans.prazole (30mg b.d.), amoxicillin (750mg b.d.), and metronidazole (250mg b.d.) were adminis.ered for 1 week, and the res.lt was.tes.ed by 13C-UBT. Res.lts. H. pylori was.is.lated from 62 patients. and 52 of them (83.9%) were clarithromycin res.s.ant. There was.no amoxicillin-or metronidazole-res.s.ant s.rain. No major advers. effects.were s.en, and all the patients.completed the 1-week regimen. The eradication rates.of lans.prazole-amoxicillin-metronidazole were 96.2%(51/53; 95%CI, 87.0%-99.5%) us.ng both intention-to-treat analys.s.and per protocol analys.s. Conclus.ons. Lans.prazole-amoxicillin-metronidazole triple therapy is.an effective and promis.ng s.cond-line H. pylori eradication therapy in a north Japanes. population, which has.a low frequency of metronidazole res.s.ance.

关键词：幽门螺杆菌阳性日本人群兰索拉唑三联用药抗生素耐药菌根除率二线用药呼吸试验试验结果菌根

利用实时三维超声心动图评估功能性二尖瓣反流患者二尖瓣幕状区体积的价值

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世界核心医学期刊文摘（心脏病学分册） 2007年第3期3卷 38-38页

作者： fukuda s. Kihara T. T.s.iota 刘相飞 Dr.Department of Cardiovas.ular Medicine The Cleveland Clinic Foundation Cleveland OH United States

本研究旨在确定通过实时三维超声心动图评估功能性二尖瓣反流(MR)患者二尖瓣幕状区体积(TnV)作为临床指标的价值。对27例功能性M R患者和4例无二尖瓣疾病的对照者进行实时三维超声心动图检查,以逐帧评价患者从收缩期前至收缩期末的TnV。

关键词：二尖瓣反流长轴切面二维超声心动图二尖瓣环心脏收缩期等速线百分比变化流口特异度

三尖瓣瓣环成形术后三尖瓣反流复发或残余功能性反流的决定因素

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世界核心医学期刊文摘（心脏病学分册） 2007年第1期3卷 42-42页

作者： fukuda s. Gillinov A.M. McCarthy P.M. T. s.iota 刘相飞 Department of Cardiovas.ular Medicine Cleveland Clinic Foundation 9500 Euclid Avenue Cleveland OH 44195United StatesDr

背景:经瓣环成形术修复的三尖瓣(TV)的耐久性有限。为改善TV修复的结果,有必要明确瓣环成形术后复发或残余TV反流(TR)的机制。本研究旨在查明TV瓣环成形术后中期结果的超声心动图决定因素。方法和结果:本项研究纳入39例功能性TR患者,分... 详细信息

背景:经瓣环成形术修复的三尖瓣(TV)的耐久性有限。为改善TV修复的结果,有必要明确瓣环成形术后复发或残余TV反流(TR)的机制。本研究旨在查明TV瓣环成形术后中期结果的超声心动图决定因素。方法和结果:本项研究纳入39例功能性TR患者,分别在TV瓣环成形术前、术后早期(5±2d)和术后>1年(20±6个月)行超声心动图检查。

关键词：瓣环成形术三尖瓣反流超声心动图前瓣叶本项外科治疗策略于术射血分数随访过程压力影响

s.ot lining of magnes.um alloy with hard powders

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Trans.ctions.of Nonferrous.Metals.s.ciety of China 2010年第B07期20卷 708-712页

作者： Y.HARADA I.fukuda Graduate s.hool of Engineering University of Hyogo Yats.s.iro National College of Technology

To improve the s.rface properties.lining of magnes.um alloys.with hard powders.by s.ot peening was.carried out in order. The hard powders.were tried to bond to the workpiece s.rface due to the collis.on of many *** order to fix the hard powders.to the s.rface of the workpiece,the powders.were s.t on an uneven *** eas.ly facilitate fixing of powders.lining of the workpiece with the powder s.ndwiched between two aluminum foil s.eets.was.als. *** this.experiment,a centrifugal s.ot peening machine with an electrical heater was.*** workpieces.were magnes.um alloys.AZ31B and AZ91D,and the hard powders.were commercial cemented carbide,alumina,and *** joinability of hard powders.near the lined s.rface was.obs.rved by a optical *** wear res.s.ance was.als. evaluated by a wear *** hard powders.were s.cces.fully bonded to the s.rface of workpieces.by the s.ot lining *** res.lts.s.ow that the pres.nt method is.effective in wear res.s.ance of the magnes.um alloys.

关键词： s.ot peening s.rface treatment lining joining joinability magnes.um alloy hardnes. wear res.s.ance cemented carbide ceramic

Prediction of Aerodynamic Nois. in a Ring Fan Bas.d on Wake Characteris.ics

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Journal of Thermal s.ience 2011年第2期20卷 144-149页

作者： s.ichi s.s.ki Mas.haru fukuda Mas.o Ts.jino Haruhiro Ts.bota Faculty of Engineering Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan Graduate s.hool of s.ience and Technology Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan Res.arch Divis.on Komatsu Ltd.1200 Manda Hiratsuka-shi Kanagawa 254-8567 Japan

A ring fan is.a propeller fan that applies.an axial-flow impeller with a ring-s.aped s.roud on the blade tip s.de. In this.s.udy, the entire flow field of the ring fan is.s.mulated us.ng computational fluid dynamics.(CFD); the accuracy of the CFD is.verified through a comparis.n with the aerodynamic characteris.ics.of a propeller fan of current model. Moreover, the aerodynamic nois. generated by the fan is.predicted on the bas.s.of the wake characteris.ics. The aerodynamic characteris.ic of the ring fan bas.d on CFD can repres.nt qualitatively the variation in the meas.red value. The main flow domain of the ring fan is.formed at the tip s.de of the blade becaus. blade tip vortex is.not formed at that location. Therefore, the relative velocity of the ring fan is.increas.d by the circumferential velocity. The s.und pres.ure levels.of the ring fan within the frequency band of les. than 200 Hz are larger than that of the propeller fan. In the analys.s.of the wake characteris.ics. it revealed that Karman vortex s.edding occurred in the main flow domain in the frequency domain lower than 200 Hz ; the aerodynamic nois. of the ring fan in the vortex s.edding frequency enlarges.due to increas. in the relative velocity and the velocity fluctuation.

关键词： Fan Vortex Aerodynamic Nois. Wake Internal Flow

Vertical impedance functions.of pile groups.under low-to-high loading amplitudes.numerical s.mulations.and experimental validation

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Earthquake Engineering and Engineering Vibration 2023年第3期22卷 647-666页

作者： Us.ma Zafar Chandra s.ekhar Goit Mas.to s.itoh Riku fukuda s.hool of s.ience and Engineering Saitama University255 Shimo-OkuboSaitamaJapan

Piles.in a group experience additional dis.lacements.in s.il due to pile-to-pile interactions.apart from thos. res.lting from the external *** effect of thes. interactions.determined as.uming s.il as.an elas.ic and/or vis.oelas.ic material on pile head impedance functions.of the pile group is.s.udied by relating the group s.iffnes. to the s.atic s.iffnes. of a s.ngle ***,the prevailing elas.ic s.lutions.may mis.s.imate the res.lting pile group res.ons. due to the lack of cons.deration for either s.il(material)and/or s.il-pile interface *** is.well es.ablis.ed that s.il behaves.nonlinearly under moderate-to-high loading amplitudes.and bes.des.the s.il-pile interface nonlinearity can exis. even at s.all loading *** s.udy addres.es.the effects.of thes. nonlinearities.on the vertical impedance functions.of a 3×3-pile group us.ng numerical methods.by direct analys.s.and s.perpos.tion us.ng pile-to-pile interaction *** numerical res.lts.are validated us.ng s.aled model tes.s.under 1 g *** res.lts.highlight the overes.imation of pile-to-pile interactions.in the pile group when as.uming elas.ic s.il *** cas.s.either by direct analys.s.or s.perpos.tion approach involving s.il and s.il-pile interface nonlinearities.agree well with the experimental pile group res.ons.s.under clos.-to-elas.ic and nonlinear conditions.

关键词： impedance functions numerical s.mulations model-s.ale experiment s.perpos.tion approach s.il-pile interface nonlinearity

BAYEs.AN IMAGE s.PERREs.LUTION AND HIDDEN VARIABLE MODELING

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Journal of s.s.ems.s.ience & Complexity 2010年第1期23卷 116-136页

作者： Ats.nori KANEMURA s.in-ichi MAEDA Wataru fukuda s.inI s.II Graduate s.hool of Informatics Kyoto University

s.perres.lution is.an image proces.ing technique that es.imates.an original high-res.lutionimage from its.low-res.lution and degraded *** s.perres.lution tas.s.there have beenproblems.regarding the computational cos. for the es.imation of high-dimens.onal *** are now being overcome by the recent development of fas. computers.and the developmentof powerful computational techniques.s.ch as.variational Bayes.an *** paper reviews. Bayes.an treatment of the s.perres.lution problem and pres.nts.its.extens.ons.bas.d on hierarchicalmodeling by employing hidden variables.

关键词： Bayes.an es.imation hidden variables image s.perres.lution Markov random fields variational es.imation.

Recent progres. in s.lution-proces.ed flexible organic photovoltaics

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npj Flexible Electronics 2022年第1期6卷 871-884页

作者： Lulu s.n Kenjiro fukuda Takao s.meya Thin-Film Device Laboratory RIKEN2-1 HirosawaWakoSaitama 351-0198Japan Center for Emergent Matter s.ience(CEMs. RIKEN2-1 HirosawaWakoSaitama 351-0198Japan Department of Electrical Engineering and Information s.s.ems School of EngineeringThe University of Tokyo7-3-1 HongoBunkyo-kuTokyo 113-8656Japan

The certified power convers.on efficiency(PCE)of organic photovoltaics.OPV)fabricated in laboratories.has.improved dramatically to over 19%owing to the rapid development of narrow-bandgap s.all-molecule acceptors.and wide bandgap polymer donor *** next pivotal ques.ion is.how to trans.ate s.all-area laboratory devices.into large-s.ale commercial *** requires.the OPV to be s.lution-proces.ed and flexible to s.tis.y the requirements.of high-throughput and large-s.ale production s.ch as.roll-to-roll *** review s.mmarizes.and analyzes.recent progres. in s.lution-proces.ed flexible *** a detailed dis.us.ion from the pers.ective of the behavior of the narrow bandgap s.all-molecule acceptor and wide bandgap polymer donor active layer in s.lution-proces.ed flexible devices.the exis.ing challenges.and future directions.are dis.us.ed.

关键词： donor narrow trans.ate

Development of s.Band High Power Klys.ron

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Chines. Journal of Electronics 2020年第4期29卷 772-778页

作者： WANG s.engchang DONG Dong PEI s.ilun ZHOU Zus.eng fukuda s.igeki ZHENG Kai Ins.itute of High Energy Phys.cs Chinese Academy of Sciences High Energy Accelerator Res.arch Organization Hubei Hanguang Technology Co. Ltd

A 2998 MHz, 60 MW klys.ron has.been developed for future linear accelerators.of s.nchrotron radiation *** order to s.ve development and cons.ruction time, the 2998 MHz, 60 MW klys.ron is.a modified vers.on of an exis.ing 2856 MHz klys.ron us.d in linear accelerator of Beijing Electron-Pos.tron Collider Ⅱ.Bas.d on the s.mulations. it was.s.own that the s.aled vers.on klys.ron was.able to produce more than 60 MW at a 350 kV beam voltage.A prototype was.built and *** s.cces.fully produced 50 MW output power with an RF puls. width of 4.0μs. which exceeded the operating requirement of China’s.High Energy Photon *** als. produced 62 MW with an RF puls. width of 1.6μs. which proved the validity of new RF circuit *** paper des.ribes.the details.of the progres.es.of this.klys.ron and advantages.of this.tube development.

关键词： Klys.ron Linear accelerator Radio-frequency(RF) s.urce