简介：InTibetandotherTibetan-inhabitedareasinChina,itisverycommontoseepeopleoftheTibetanethnicgroupdrinkqingkebarleywine.Theydosoevenwhileworkinginthefield.

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简介：Thispaperaimstoachieveanalysisandexperimentresultsthatrelatetomechanicscapabilityandstructuralparameterofaspecialsaddleshellofrevolution.Theoreticallyspeaking,thesaddleshellofrevolutionconsistsofatoroidalshellandasphericalshell.Theshellssimultaneousequationscanbesolvedwithharmoniousterms.Where,thefundamentalequationscanbesolvedbyasymptoticexponentialperturbationmethod.TheequationsofspecialsolutioncanbesolvedbyHovozhilovsspecialsolution.Thisnewideaisfromastudyofsomeexistingsolutionsofthetoroidalshell.Theresultshavebeenprovedbycomparedwithsomeexperimentalresults.Theexperimentsaimstostudytheeffectcausedbychangeofmaterialparameter,orbychangeofdifferentgeometricdimensionsofthesaddleshell,whichincludethechangeofthickness,thechangeofradiusofshell,andthechangeofribs.Finally,theacceptedproductofthesaddleshellwerereinforcedbyatoroidalribhasbeensubmitted.

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简介：Therisksindevelopmentofnavyvesselswereexplored.Theresourcesoftechnicalriskinthedesignanddevelopmentofvesselswerementioned.Itwaspointedthattechnicalriskdominatedtheotherriskcomponents.Basedonthewriters'understandingandexperiencefromriskanalysisandriskmanagementtothedevelopmentofanavyvessel,fourmeasureindexesoftechnicalriskwerepresented.Thedecisioncriteriaandtherulescorrespondingtotheindexeswereestablishedbythestatisticinformation.

简介：Pulmonaryvesselsextractionisachallengingtaskinclinicalmedicine.Manypulmonarydiseasesareaccompaniedbythechangesofvesseldiameters.Thevesselsandtheirbranches,whichexhibitmuchvariability,aremostimportantinperformingdiagnosisandplanningthefollow-uptherapies.Inthispaper,weproposeanefficientapproachtopulmonaryvesselsextractionbasedonthecurveevolution.Thisapproachmodelsthevesselsasmonotonicallymarchingfrontunderthespeedfieldintegratingboththeregionandtheedgeinformationwhereanewregionspeedfunctionisdesignedandintegratedwiththeedgebasedspeedfunction.Duetotheregionbasedspeedterm,thefrontcouldevenpropagateinsmallnarrowvesselbranches.Tofurtherimprovethesegmentationresults,amulti-initialfastmarchingalgorithmisdevelopedtofastimplementthenumericalsolution,whichmayavoidthemonotonicallymarchingfrontleakingoutoftheweakboundarytooearlierandalsoreducethecomputationalcost.ThevalidityofourapproachisdemonstratedbyCTpulmonaryvesselsextraction.Experimentsshowthatthesegmentationresultsbyourapproach,especiallyonthenarrowthinvesselbranchesextraction,aremoreprecisethanthatoftheexistingmethod.

简介：Sincetrimandsinkagearesignificantwhilevesselsareadvancingforwardwithhighspeed,thepredictedvesselresistancebasedonrestrainedmodeltheoryorexperimentmaynotberealresistanceofvesselsduringvoyage.Itisnecessarytotaketheinfluenceofhullgestureintoaccountfororedictingtheresistanceofhigh-speedship.Inthepresentworktheresistanceproblemofhighspeedshipistreatedwiththeviscousflowtheory,andthedynamicmeshtechniqueisadoptedtocoincidewithvariationofhullgestureofhighspeedvesselonvoyage.ThesimulationofthemodelsofS60shipandatrimaranmovingintowingtankwithhighspeedareconductedbyusingtheabovetheoryandtechnique.Thecorrespondingnumericalresultsareingoodagreementwiththeexperimentaldata.Itindicatesthattheresistancepredictionforhighspeedvesselsshouldtakehullgestureintoconsiderationandthedynamicmeshmethodproposedhereiseffectiveincalculatingtheresistanceofhighspeedvessels.

简介：ObjectiveFortycasesofIAMIwereexaminedwithcoronaryangiographyinordertostudytherelationshipofthevesselswiththeECGofIAMI.MethodsForcoronaryangiographyJudkin’smethodwasused;IAMIwasdiagnosedbythe1979WHO’sstandardofISHDandECGwasseparatelymeasuredbytwodoctors.ResultsMostofIAMIwithpolybranchcoronaryoritscollateraldisease(32.5%and42.5%)andonly10cases(25%)withsinglebranchcoronarydisease,whoseECGswereuntypical.ConclusionIAMIwithsingle-branchcoronarydiseasemightexpressasmildsymptomsandhavenotypicalECGchange.WhiletypicalECGchangeemerges,thecoronaryarteryalwaysshowedpoly-branchdiseaseorcollateralbranchobstructionandthediseasewouldbeadvanced.ItisimportanttopaymoreattentiontothecasesofIAMIwithoutclassicECGchangesoastogivediagnosisandtreatmentthemintime.

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简介：Theinternalturretmooringsystemforoilproductionstoragevesselsisadevelopingtypeofoffshorefloatingproductionsystemsuitablefordeepwaterandharshenvironmentalapplication.Inthispaper,someachievementsinourresearchworkarepresented.Thedescriptionincludes:dynamicanalysisofmooringsystem,researchonperformanceofturretassembly,influenceofvesseldimensionsandhullformsonmooringperformance,modeltestsundercombinedactionofenvironmentalforcesinbasin,andhullstructuralstrengthanalysis.

简介：我们涉及象血那样的能量守恒定律建模uidows的一个维的夸张系统的推导和分析嗷通过顺从的axisymmetric容器。导出的早模型与措施来源术语是nonconservative或nonhomogeneous，它无穷地被赋予以一些Riemann数据的许多Riemann解决方案。在这份报纸，我们导出保守、同类的一个一个维的夸张系统。而且，在那里存在为有任意地大的Riemann数据的二个容器的Riemann问题的一个唯一的全球Riemann解决方案，在一个自然稳定性熵标准下面。Riemann答案可以为一些盒子由四个波浪组成。系统能也作为严格的hyperbolicity为失败的3脳3系统被写，站的波浪能与零个特征值被认为是相应于第二个家庭的接触断绝。

简介：ObjectivesToinvestthesuccessprocedure,immediateoutcomeafterprocedure,therateofmainadversecardiaceventsafterprocedureandrestenosisafterstentplacementinsmallcoronaryvessels.Methods290patientswithselectedoremergencystentimplantationinsmallvesselsfromApril,1997toMarch,2002.Total299vessels,304lesionsand316stentswerestatisted.Thesuccesssrateofprocedure,immediateoutcomeafterprocedure,therateofmainadversecardiaceventsafterprocedureandrestenosisafterstentplacementinsmallcoronaryvesselswereassessed.Thepatientswerefollowedup1monthto4years.Re-catheterangiographyweredonein122/290patients.ResultsThenarrowrateoflesiondroppedfrom89%±12%beforeprocedureto5%±5%afterprocedure(diameter).202patientswerefollowedup1month(69.7%).197/202casesweresurvival.5/202casesdiedin3hrsto7days.2/5casesdiedofpersistenthypotensionafterprocedure.1/5casediedofacuteleftheartfailure.2/5casesdiedofsuddendeath.180caseswerefollowedup5monthsto4years.Thenon-eventsurvival(NES)ratewas73.3%(132/180).There-angiographyweredonein122cases.Restenosishappenedin39cases(30.3%).37patientsrepeatedPCI.2patientswenttoCABG.2casesgotanginarecurrenceandwereprovedsecondtimerestenosisbyre-angiography.ThethirdtimePCIwasdonein1patient.TheotherpatientswenttoCABG.1casediedofchronicheartfailureafter2years.1casesufferedacutemyocardialinfarctiononarterystentimplanted.ConclusionsTherearehighsuccessrateofprocedureandperfectimmediateoutcomeinstentplacementinsmallvessels.Mainadversecardiaceventsdidnotincreased.Non-eventsurvialwassatisfiedinlongtermfollow-up.Restenosisratewasshowedslightlyhigherthantheoneofmainvessels.

简介：这份报纸涉及搬到领导人追随者形成的多重underactuated表面容器的形成控制问题。形成被追随者完成追踪相对领导人定义的一个虚拟目标。追踪法律的一个柔韧的适应目标被使用神经网络和backstepping技术建议。建议控制计划的优点是不明确的非线性的动力学由Coriolis/centripetal力量引起了，非线性的抑制，从环境的unmodeled水动力学和骚乱能被补偿由在线学习上。把分析基于Lyapunov，追踪的错误集成到起源的一位小邻居的建议控制器保证。模拟结果表明控制策略的有效性。

简介：Trendsintoday’ssteelproductionshowincreasingdemandsforhighly-sophisticatedsteelgrades.Therefore,thesteelindustrywilleventuallyberequiredtoinstallbestperformingtechnologiestomeetgovernmentalspecificationsdesignedtosignificantlyreduceenvironmentalemissions.Sucheffortsaresupportedbyinnovativenewsolutionsintheentiresteelmakingprocess.Oneprocessthatwillneedtobeaddressedisthecleanlinessofthesteelintheliquidsteelphase,especiallyduringtheBOF-tappingprocess.Thenewconvertergate(CG)(Fig.1)bestsupportstheslidegatetappingtechnologyforconvertersintermsofcleansteel,productivity,yieldandavailability-atreducedcosts.TheCGgateintroducesauniquefeatureforconverterslidegates:Thebottomplatecanbeexchangedwhilethegateremainsmountedontheconverter.Thisnewfeatureallowsforanincreasedutilisationoftherefractorypartsandasignificantreductionofthedowntimeoftheconverter.This'designedefficiency'isachievedwitharefractorysetconsistingofthreeidenticalplates-twobottomplatesandonesliderplate-andanozzle.AnumberofotherimprovementssuchasautomaticcylindercouplingusingtheInterstopSNAPtechnologyandatwosteptensioningsystemhavealsobeenimplemented.ThenewsystemisdesignedtomeetminimalspacerequirementsandthereforewilladapttomostBOFshops.Toperformpreparation,serviceandmaintenanceworkthemodularCGgatecanbedismountedfromtheconverterandsimultaneouslyreplacedbyaready-to-useunit.Thedegreeofautomationfordismountingandmountingaswellasforoff-linepreparationhasbeenenhancedandreducesmanualefforts.Thispaperprovidesasolutiontotheobvioustrendtowardsefficientandcontrolledproductionofcleansteel,ingeneral,andespeciallyatBOFshops.Moreover,itspecificallydescribestheoperationalresultsofthisinnovativeBOFtappingequipmentatSalzgitterFlachstahlGmbH,Germany.

简介：Cold-stretchedpressurevesselsfromausteniticstainlesssteels(ASS)arewidelyusedforstorageandtransportationofliquefiedgases,andhavesuchadvantagesasthinwallandlightweight.Fatigueisanimportantconcerninthesepressurevessels,whicharesubjectedtoalternativeloads.Eventhoughseveralcodesandstandardshaveguidelinesonthesepressurevessels,therearenorelevantdesignmethodsonfatiguefailure.TounderstandthefatiguepropertiesofASS1.4301(equivalentsincludeUNSS30400andAISI304)insolution-annealed(SA)andcold-stretchedconditions(9%strainlevel)andtheresponseoffatiguepropertiestocoldstretching(CS),low-cyclefatigue(LCF)testswereperformedatroomtemperature,withtotalstrainamplitudesrangingfrom-.4%to-.8%.Martensitetransformationsweremeasuredduringthetests.Comparisonsoncyclicstressresponse,cyclicstress-strainbehavior,andfatiguelifewerecarriedoutbetweenSAandCSmaterials.ResultsshowthatCSreducestheinitialhardeningstage,butprolongsthesofteningperiodinthecyclicstressresponse.Martensitetransformationhelpsformastableregimeandsubsequentsecondaryhardening.Thestressesofmonotonicandcyclicstress-straincurvesareimprovedbyCS,whichleadstoalowerplasticstrainandamuchhigherelasticstrain.ThefatigueresistanceoftheCSmaterialisbetterthanthatoftheSAmaterial,whichisapproximately1?03to2?04cycles.TheS-NcurveoftheASMEstandardforASSiscomparedwiththefatiguedataandisjustifiedtobesuitableforthefatiguedesignofcold-stretchedpressurevessels.However,consideringtheCSmaterialhasabetterfatigueresistance,theS-Ncurvewillbemoreconservative.ThepresentstudywouldbehelpfulinmakingfulluseoftheadvantagesofCStodevelopanewS-Ncurveforfatiguedesignofcold-stretchedpressurevessels.

简介：一个代理人联合为技术和粒子群优化建模的代理人的基于的粒子群优化(SBPSO)算法被用于合成压力容器的基于可靠性的柔韧的设计(RBRD)。SBPSO的算法和效率通过数字例子被显示。为细丝创伤的一个模型有金属性的班机的合成压力容器然后被网分析学习，它的回答被使用有限元素方法分析(由软件ANSYS表现了)。为最大化性能因素的一个优化问题被在圆柱的部分，金属班机的厚度和dropoff区域尺寸选择螺旋状的厚度的弯屈的取向为设计变量提出。为合成的层和金属班机的力量限制被分别地使用Tsai-Wu失败标准和协定失败标准构造。方法建议了的数字例子表演能有效地解决RBRD问题，和建议模型的最佳的结果能满足某些可靠性要求并且有坚韧性到设计变量的变化。

简介：在容器使用man-machine-environment系统工程(MMESE)是一个方法为推进一个容器和它的分系统的操作效率，性能，安全，和可居住的目的改进在设备，环境，和人之间的相互作用的有效性。在下列研究，容器的生命周期被划分成9个阶段，并且15研究题目也从这些阶段之中被识别。15个题目是systemized，然后man-machine-environment工程系统应用程序模型因为容器用ICAM定义方法被开发0(IDEF0)，它是一个系统的建模方法。这个系统模型与包括的主要基本研究方法和途径衔接在数据和二个联系题目的信息流动之间的差距，它带先前，相对，独立人士总体上一起使遭到。这个系统的模型的应用程序应该在容器便于man-machine-environment系统工程的应用程序，在特别概念并且化身设计阶段。当减少重复工作时，经理和设计者能快速并且高效地处理详细任务。