简介：

简介：OnceyouhaveachancetovisitJingchuanandtheMingjiangRiverValleyinnorthwestemSichuanProvince,youwillfindyourselfinamysteriousworld:Riversmeanderthroughmountainslikehadascarves,snow-cappedmountainsfillpeoplewithmysteriousatmosphere,sutrastreamersflutterinwind,pillboxesstretchtheirarmstohugthesky,andtherearevariouskindsofpatternsdrawnonthewallsofvillagesandmountainrocks.

简介：Regularandirregularwaveforcesactingonverticalwallsarestudiedbyapreviouslydevelopednumericalmodel.Thecomputedwaveforcesarecomparedwiththeavailableexperimentaldatatoverifythenumericalmodel,andsatisfactoryagreementsareobtained.Thevariationofwaveforceswithincidentanglesandtheshapeofsimultaneouspressuredistributionareinvestigated,andthecomparisonsbetweennumericalresultsandGoda'spredictionsarealsocarriedout.Itisconcludedthatthemaximumwaveforcesactingontheunitlengthofverticalwallisofteninducedbytheobliquelyincidentwavesinsteadofnormallyincidentwaves,whileGoda'sformulamaybeinapplicableforobliquewaveincidence.Theshapeofsimultaneouspressuredistributionisnotsignificantlyinfluencedbyincidentangles,anditcanbefavorablypredictedbyGoda'sformula.WhenregularwaveheightsaretakenasthesameasirregularwaveheightH1%,theirregularwaveforcesPh,1%areslightlylargerthanregularwaveforcesinmostcases.

简介：ＯｆＷａｌｌｓｉｎＣｈｉｎａ－ＧｒｅａｔａｎｄＳｍａｌｌＩＮＴＨＩＳｉｓｓｕｅｗｅｗｉｌｌｂｅｄｉｓｃｕｓｓｉｎｇｔｗｏｔｏｐｉｃｓｃｌｏｓｅｔｏｔｈｅｈｅａｒｔｓｏｆＣｈｉｎｅｓｅｐｅｏｐｌｅｅｖｅｒｙｗｈｅｒｅ：ｔｈｅＧｒｅａｔＷａｌｌａｎｄｔｈ...

简介：InZhaba,wheneveraboyfallsinlovewithagirl,noceremonyisnecessary.Theboyonlyhastocrossthe10-meter-highwallofthegirl'shousetospendthenightwithher.Childrenborninthiswayarebroughtupbythemothers;thefathersareexemptfromresponsibility,butmakesomeeffortsintermsofsupportunderobligation.Intheirownmaternalfamilies,malesplayassistingrolesinbringinguptheirsisters'children.

简介：Basedonthe2ndordercnoidalwavetheory,thecharactersofshallowwaterstandingwavesandtheiractiononverticalwallsarestudiedinthispaper.Thetheoreticalexpressionsofthewavesurfaceelevationinfrontofandthewavepressureontheverticalwallareobtained.Inordertoverifythetheoreticalresults,modeltestsweremadeintheStateKeyLaboratoryofCoastalandOffshoreEngineeringatDUT.Forthewavesurfaceelevationinfrontofthewallandthewaveforcesonthewallatthemomentwhenthewavesurfaceatthewallsurfacegoesdowntothebottomofthewavetrough,thecalculatedresultscoincidequitewellwiththeexperimentalresults.Forthewaveforcesonthewallatthemomentwhenthewavesurfaceatthewallsurfacegoesuptothetopofthewavecrest,thetheoreticalexpressionsaremodifiedbytheexperimentalresults.Fortheconvenienceofpracticaluse,calculationsaremadeforthewaveconditionswhichusuallyoccurinengineringpracticebyuseoftheinves

简介：Thispaperisconcernedwithahighcharacteristicimageprocessingandrecognitionsystemthatisusedforinspectingreal-timeblemishes,streaksandcracksontheinnerwallsofhighaccuracypipes.Asaregulardetector,theBPneuralnetworkisusedforextractingfeaturesoftheimageinspectedandclassifyingtheseimages,ittakesfullyadvantageofthefunctionofartificialneuralnetwork,suchastheinformationdistributedmemory,largescaleself-adaptingparallelprocessing,highfault-tolerantabilityandsoforth.Besides,animprovedBPalgorithmisusedinthesystemfortrainingthenetwork,andmakingthelearningprocedureofthenetconvergestotheminimumofoverallsituationathighrate.

简介：ThearticleisbasedonavisittotheTilanqiao,QingpuandWomen’sprisonsandajuveniledelinquentrehabilitationcenterinShanghaiandtheSuzhouPrisonofJiangsuProvinceinFebruary2001bytheauthor,agraduatestudentofhumanrights.ShemadethetripwithagroupofexpertsfromChinaSocietyforHumanRightsStudies.

简介：Thedragreductionofcompliantsurfaceisstudiedinashipmodeltank.There-sultsofthemeasureddragofaflatplatemodelshowthatthecompliantsurfaceiscapableofre-ducingdraginacertainrangeofspeeds,Themaximumdragreductionis15.7%whenthecom-pliantsurfaceismerelyontheonesideoftheplate.Theseresultshaveconfirmedthepredictedcharacteristicsofcompliantsurfaces.

简介：Sandwichmasonrywallsarewidelyusedasenergy-savingpanelssincetheinterlayerbetweentheouterleavescanactasaninsulationlayer.Newtypesofsandwichwallsarecontinuallybeingintroducedinresearchandapplications,andduetotheiruniquebondpatterns,experimentalstudieshavebeenperformedtoinvestigatetheirmechanicalproperties,especiallywithregardtotheirseismicperformance.Inthisstudy,threenewtypesofsandwichmasonrywallhavebeendesigned,andcycliclateralloadingtestswerecarriedoutonfivespecimens.Theresultsshowedthatthespecimensfailedmainlyduetoslippagealongthebottomcracksorthedevelopmentofdiagonalcracks,andthefailurepatternswereconsiderablyinfluencedbytheaspectratio.Analysiswasundertakenontheseismicresponseofthenewwalls,whichincludedductility,stiffnessdegradationandenergydissipationcapacity,andnoobviousdifferencewasobservedbetweentheseismicperformanceofthenewwallsandtraditionalwalls.Comparisonsweremadebetweentheexperimentalresultsandthecalculatedresultsoftheshearcapacity.ItisconcludedthattheformulasinthetwoChinesecodes(GB50011andGB50003)aresuitableforthecalculationoftheshearcapacityforthenewtypesofwalls,andtheformulainGB50011tendstobemoreconservative.

简介：Thestabilitycharacteristicsoflaminarboundarylayersovercompliantwallswasstudiedbythelineartheory.Unlikethepreviousauthors,thecoupledmotionofthefluidandsolidwasrequiredtosat-isfythecontinuityconditionsofboththevelocityandstressattheinterface.Resultsofcalculationsshowthatasthespeedratioordensityratioexceedsacertainthresholdvalue,thetwotypesofunstablewaveswillnolongerbedistinguishable,andthetangentialcomponentofthedisturbancestressisnolongernegligi-ble.Sotheneglectofit,asthepreviousauthorsdid,isunjustified.

简介：导读：人也可以像蜘蛛侠一样爬墙了!

简介：工业化大楼系统(IBS)最近被介绍最小化工程建设的时间和费用。因此，在IBS结构保证预制部件的连接的集成是保证从地震，车辆，和机械受到动态负担的大楼的稳定性的一个重要因素。然而，结构的工程师仍然在合适的连接上缺乏知识，IBS的详细关节组织建设。因此，这研究建议为抵抗multidirectional的动态负担的一个特殊预制具体铺满地板的连接系统强加了负担和还原剂颤动效果(PI2014701723)。这个系统被设计由使用二钢连接二块邻近的预制的墙面板U字形的隧道(即，男、女的关节)。在扔期间，每个关节在考虑下列条件以后为加入被改编进一块各自的墙面板：钢隧道的一个方面通向面板的厚度脸；U字形的橡胶在二条隧道之间被实现驱散颤动效果；并且螺栓和坚果被用来创造在二条U字形的男、女的钢隧道之间的延期。预制的墙的发达有限元素模型受到周期的负担在强加的动态负担期间评估建议连接的表演。连接性能当时基于在塑料范围的能量驱散，压力，变丑，和具体损坏与常规连接相比。建议预制连接能够超过受到动态负担的预制的墙的能量吸收，从而在所有主要方向改进它的抵抗行为。

简介：Inordertostudybucklingpropagationmechanismindeepseapipelines,thecontactbetweenpipeline’sinnerwallsinbucklingprocesswasstudied.Atwo-dimensionalringmodelwasusedtorepresentthepipelineandanonlinearspringmodelwasadoptedtosimulatethecontactbetweeninnerwalls.Basedontheelastoplasticconstitutiverelationshipandtheprincipleofvirtualworktheory,thecouplingeffectofpipeline’snonlinearlargedeformationandwallcontactwasincludedinthetheoreticalanalysiswiththeaidofMATLAB,andtheapplicationscopeofthetheoreticalmodelwasalsodiscussed.Thecalculatedresultsshowthatduringtheloadingprocess,thechangeinexternalpressureiscloselyrelatedtothedistributionofsectionstress,andoncethewallsarecontactingeachother,theexternalpressureincreasesandthenremainsstableafteritreachesaspecificvalue.Withoutfracture,thepipelinesectionwillstopshowingdeformation.Theresultsoftheoreticalcalculationsagreewellwiththoseofnumericalsimulations.Finally,inordertoensurereliabilityandaccuracyofthetheoreticalresults,thecollapsepressureandpropagationpressurewerebothverifiedbynumericalsimulationsandexperiments.Therefore,thetheoreticalmodelcanbeusedtoanalyzepipeline’sbucklingdeformationandcontactbetweenpipeline’sinnerwalls,whichformsthebasisforfurtherresearchonthree-dimensionalbucklingpropagation.

简介：这研究为增强的水泥围并且求婚的Ｔ形的特殊边界元素为大楼的地震设计检验中国GB50011-2010法律的设计条款一个改进设计方法。美国代码ACI318-14的GB50011-2010代码和那些的设计食物的比较在GB50011-2010在Ｔ形墙设计食物显示可能的缺乏。根据GB50011-2010设计的一面典型Ｔ形墙的案例研究也在非凸缘结束和凸缘结束边界元素的过分保守的设计显示边界元素的不够的程度。为Ｔ形墙的特殊边界元素的改进图案用一个基于排水量的方法被开发。建议设计公式GB50011-2010食物在凸缘结束在非凸缘结束和一个更短的边界元素生产一个更长的边界元素，相对那些。广泛的数字分析显示用建议公式设计的Ｔ形墙在压缩并且在紧张为凸缘的两个盒子开发0.01的无弹性的飘移。

简介：上海石库门里弄融合了传统的中国江南城镇合院住宅形制和英国早期现代联排住宅的特点。自从19世纪60年代以来,在不断的国内外冲突、战争以及持续超过一整个世纪的住房危机中,上海石库门里弄发展成为一种具有普遍意义、现代意义的都市建筑类型。它的居住使用价值在1950年代达到顶峰,从比例上看,约占当时上海城区房屋总量的60%,并伴随着近代上海的都市化进程,逐渐定义了这座伟大的中国现代城市的主要景观。

简介：

简介：Astudyispresentedformagnetohydrodynamics(MHD)flowandheattransfercharacteristicsofaviscousincompressibleelectricallyconductingmicropolarfluidinachannelwithstretchingwalls.ThemicropolarmodelintroducedbyEringenisusedtodescribetheworkingfluid.Thetransformedselfsimilarordinarydiferentialequationstogetherwiththeassociatedboundaryconditionsaresolvednumericallybyanalgorithmbasedonquasi-linearizationandmultileveldiscretization.Theefectsofsomephysicalparametersontheflowandheattransferarediscussedandpresentedthroughtablesandgraphs.Thepresentinvestigationsmaybebeneficialintheflowandthermalcontrolofpolymericprocessing.

简介：Becauseofitsexcellentseismicperformance,reinforcedsoilretainingwallsareincreasinglyusedincivilengineering.Althoughmanycountrieshavepublishedcorrespondingdesigncodes,thedifferencesbetweenthemarestillrelativelylarge.UsingtheFHWACodeandtheCodeforSeismicDesignofRailwayEngineering(CSDRE),stabilitycalculationsofreinforcedsoilretainingwallswerecarriedoutandthesimilaritiesanddifferencesbetweenthesetwodesigncodeswereanalyzed.Accordingtothecomparativeanalysis,thefollowingconclusionsaredrawn:theinertiaforce,theearthpressureandthetensileforceofreinforcementscalculatedfromtheCSDREarelessthanthosefromtheFHWACode,andthesafetyfactorcalculatedfromtheformerislarger.AlthoughtheM-Omethodisrecommendedtocalculatethedynamicearthpressure,theFHWACodesuggestsahigheractionpointascomparedtotheCSDRE.

简介：Inthispaper,theprincipleofmirrorimageisusedtotransformtheproblemofwavediffractionfromacircularcylinderinfrontoforthogonalverticalwallsintotheproblemofdiffractionoffoursymmetricincidentwavesfromfoursymmetricallyarrangedcircularcylinders,andthentheeigenfunctionexpansionofvelocitypotentialandGrafsadditiontheoremareusedtogivetheanalyticalsolutiontothewavediffractionproblem.Therelationofthetotalwaveforceoncylindertothedistancebetweenthecylinderandorthogonalverticalwallsandtheincidenceangleofwaveisalsostudiedbynumericalcomputation.