简介：１ＩＮＴＲＯＤＵＣＴＩＯＮＨｕｍａｎａｃｔｉｖｉｔｉｅｓｍａｙｉｎｄｕｃｅｓｉｇｎｉｆｉｃａｎｔｃｈａｎｇｅｓｉｎｓｅｄｉｍｅｎｔｔｒａｎｓｐｏｒｔｃａｐａｃｉｔｙｏｆａｌｕｖｉａｌｒｉｖｅｒｃｈａｎｎｅｌｓａｎｄｃａｕｓｅｃｈａｎｇｅｓｉｎｔｈｅ...

简介：Experimentaldesignismainlyabouthowtoreducethetesterrorcausedbyinterferencefactors,andhowtousetheleastamountoftestdatatogetcomprehensiveandreliabletestinformation.Itisanimportanttoolcoursewithstrongtheoreticalandpractical.Basedonthecombinationofteachingandpractice,atargetedselectionofteachingcontentandtheuseofadvancedteachingmethodsandteachingmethods,thispaperproposesteachingmethodtostimulatestudentsinterestinlearning,deepentheunderstandingofcurriculumcontentandmasterandcultivatestudents’applicationofthetechnologyinpracticeactivities.

简介：ＥＸＰＥＲＩＭＥＮＴＡＬＳＴＵＤＩＥＳＯＦＴＨＥＥＦＦＥＣＴＳＯＦＰＲＥＳＴＲＥＳＳｏｎｉｎｔａｃｔＣｈａｎｉｎｅＴｉｂｉａＢｏｎｅＳｔｒｕｃｔｕｒｅＬｉｕＢａｏｗｅｉ，ＬｕＳｈｉｂｉ，ＷａｎｇＪｉｆａｎｇＤｅｐｔ．ｏｆＯｒｔｈｏｐ．ｏｆＧｅｎｅｒａ...

简介：Cryosurgeryisaneffectivewayofcuringmanydiseasesincludingtumorsandcancers.Itcanbeappliedusingavarietyofsystemsandcryogens.Cheap,convenient,reliableequipmentstillneedstobedevelopedsothatcryotherapymaybeacceptedbysurgeonsandhospitals.Thispaperpresentsacryosurgeryapparatusthatutilizesanauto-cascaderefrigerationsystem.RefrigerantmixtureR50/R23/R600awasselectedastheworkingfluid.Themixturecompositionwasalteredtoachievelowertemperaturesandhighercapacity.Thelowesttemperatureatthecryoprobecouldbeaslowas-100°C,and8Wrefrigerationcapacitycouldbeobtainedat-80°C.Aniceballof11.6mmdiametercouldbeformedwhenthecryoprobewasimmersedinawaterbathat37°C.

简介：Thispaperdealswithacomparativeresearchbetweentwoprocessesofgranulation,namelymini-pelletizedsintering(MPS)andhybridpelletizedsintering(HPS),focusingonaspectssuchastheballingeffect,production,quality,andmineralographyandmetallurgicalperformanceofsinter.Theresultsindicatethatbothmethodscanresultinasatisfyingcapabilityinballingeffectandmetallurgicalperformanceofsinter,qualifiedtomeettheplantproductionrequirements,butwhenthegranulationtimeandgranulatingmoisturearesettoaround6minutesand7.0%respectively,MPSisbetterthanHPS.

简介：

简介：

简介：ＥｘｐｅｒｉｍｅｎｔａｌＳｔｕｄｉｅｓｏｆＡｄａｐｔｉｖｅＣｏｎｓｃｉｏｕｓＳｙｓｔｅｍｓＣａｉＹｉｆａ（ＤｅｐｔｏｆＭａｔｈ＆ＣｏｍｐｕｔｅｒＳｃｉｅｎｃｅｓＤｕｎｄｅｅＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｌｏｇｙＤｕｎｄｅｅＤＤ１１ＨＧＵｎｉｔｅｄ...

简介：

简介：Ｅｘｐｅｒｉｍｅｎｔａｌ　Ｓｔｕｄｙ　ｏｆ　Ｄｅｃａｙ　ｏｆ　Ｈｏｔ　ＮｕｃｌｅｉＥｘｐｅｒｉｍｅｎｔａｌＳｔｕｄｙｏｆＤｅｃａｙｏｆＨｏｔＮｕｃｌｅｉ￥ＷａｎｇＳｕｆａｎｇ；ＴａｎＪｉｌｉａｎ；ＳｏｎｇＭｉｎｇｔａｏ；ＺｈａｎｇＣｈｏｎｇ；ＨｅＺｈ...

简介：

简介：Theinfluenceofdiffuserparameters,includingtheriserspacing,portnumberinariser,injectionangle,portarrangement,etc.,onthesurfaceinitialdilutionisexperimentallyinvestigated.Therelativedensitydifferencebetweentheeffluentandtheseawaterinthemodelisthesameasthatintheprototype,andtheeffectofthecrosscurrentissimulatedbyaninversemodeltechnique.Basedontheresultanalysis,thearrangementwithmoreportsinariserandlargerriserspacingissuggestedtosaveconstructioncost.TherelationshipbetweentheReynoldsnumberbasedontheportdiameterandvelocity,andthesurfaceinitialdilutionisalsoexplored,andthecriticalReynoldsnumberisproposed.

简介：

简介：一个表面波浪激动的血浆列能充当一条血浆天线。实验被执行学习电流和传导性如此的一条血浆天线的分布，领域，功率模式，择向性和效率。另外，一条相等的金属性的铜天线被建立，它的天线参数与血浆天线的相比。我们的调查结果显示在血浆天线的泛音的力量内容是与铜天线相比同样突出的更多(它仅仅产生基本频率)。然而，为两条天线的力量模式是相当类似的。在血浆天线的领域里关于泛音的产生提供更质的理解，双性人光谱的分析被执行在当前的变化学习非线性的相互作用。血浆天线的一些特定的特征在我们的学习被调查，它可以关于常规金属性的天线提高血浆天线的申请前景。

简介：Intheexperimentwehavemeasuredtheresonantfrequenciesofper-foratedsheetswithperforationratesfrom0.008to0.30.Comparedthosefre-quencieswiththecorrespondingresonantfrequenciesofhomogeneous,orun-perforatedoneweobtainedanempiricalrelationshipbetweentheresonantfrequencyandperforationrate,whichcanbeusedforindustrialpurpose.Wehavealsostudiedthechangeofvibrationalenergydistributionofperforatedsheetrelatedtothatofhomogeneous.

简介：

简介：

简介：

简介：Objective:Thepurposeofthisexperimentalstudywastoexplorethemechanismofthevertebralosteophyteformation.Methods:Anexperimentalmodelofcervicalspondylosisinrabbitswasestablishedbyresectionofthecervicalsupraspinousandinterspinousligamentsanddetachmentoftheposteriorparavertebralmusclesfromcervicalvertebrae.Becauseofindividualdifference,Thenaturaldevelopmentprocedureofthevertebralosteophyteformationcouldbeseenwithamicroscopebydynamicobservation.Results:Thecartilageend-platewasdividedintoagrowthcartilagelayerandanarticularcartilagelayer.Vertebraeanddiscsfromthe3-monthcontrolgrouprabbitsshowednormalstructure.Thechangesofcartilageplatesfromthe3-montheexperimentalgroupandthe8-monthcontrolgroupanimalsshowedproliferationinperipheralarticularcartilage.Theosteophytesfromthe8-montheexperimentalgroupanimalscouldbeseen.Theosteophyteobviouslyarisedfromproliferation,calcificationandossificationoftheperipheralarticularcartilage.Conclusions:Thevertebralosteophytearisesfromproliferationofperipheralarticularcartilagewhichundergoescartilaginousosteophyte,andthenchangesintobonyosteophytethroughanendochondrqalcalcificationandossification.

简介：Thispaperpresentsakinematicanalysisofthelocomotionofagecko,andexperimentalverificationofthekinematicmodel.Kinematicanalysisisimportantforparameterdesign,dynamicanalysis,andoptimizationinbiomimeticrobotresearch.Theproposedkinematicanalysiscansimulate,withoutiteration,thelocomotionofgeckosatisfyingtheconstraintconditionsthatmaintainthepositionofthecontactedfeetonthesurface.Sothemethodhasanadvantageforanalyzingtheclimbingmotionofthequadrupedmechanisminarealtimeapplication.Thekinematicmodelofageckoconsistsoffourlegsbasedon7-degreesoffreedomspherical-revolute-sphericaljointsandtworevolutejointsinthewaist.Themotionofthekinematicmodelissimulatedbasedonmeasurementdataofeachjoint.Themotionofthekinematicmodelsimulatestheinvestigatedrealgecko’smotionbyusingtheexperimentalresults.Theanalysissolvestheforwardkinematicsbyconsideringthemodelasacombinationofclosedandopenserialmechanismsundertheconditionthatmaintainsthecontactpositionsoftheattachedfeetontheground.Themotionsofeachjointarevalidatedbycomparingwiththeexperimentalresults.Inadditiontothemeasuredgait,threeothergaitsaresimulatedbasedonthekinematicmodel.Themaximumstridesofeachgaitarecalculatedbyworkspaceanalysis.Theresultcanbeusedinbiomimeticrobotdesignandmotionplanning.