简介：ThispaperpresentsaclosedformsolutionandnumericalanalysisforEshelby’sellipticinclusioninaninfiniteplate.Thecomplexvariablemethodandtheconformalmappingtechniqueareused.Thecontinuityconditionsforthetractionanddisplacementalongtheinterfaceinthephysicalplanearereducedtothesimilarconditionsalongtheunitcircleofthemappingplane.Thepropertiesofthecomplexpotentialsdefinedinthefiniteellipticregionareanalyzed.Fromthecontinuityconditions,onecanseparateandobtaintherelevantcomplexpotentialsdefinedintheinclusionandthematrix.Fromtheobtainedcomplexpotentials,thedependenceoftherealstrainsandstressesintheinclusionfromtheassumedeigenstrainsisevaluated.Inaddition,thestressdistributionontheinterfacealongthematrixsideisevaluated.Theresultsareobtainedinthepaperforthefirsttime.

简介：Thesingularhybridboundarynodemethod(SHBNM)isproposedforsolvingthree-dimensionalproblemsinlinearelasticity.TheSHBNMrepresentsacouplingbetweenthehybriddisplacementvariationalformulationsandmovingleastsquares(MLS)approximation.Themainideaistoreducethedimensionalityoftheformerandkeepthemeshlessadvantageofthelater.Therigidmovementmethodwasemployedtosolvethehyper-singularintegrations.The'boundarylayereffect',whichisthemaindrawbackoftheoriginalHybridBNM,wasovercomebyanadaptiveintegrationscheme.Thesourcepointsofthefundamentalsolutionwerearrangeddirectlyontheboundary.Thustheuncertainscalefactortakenintheregularhybridboundarynodemethod(RHBNM)canbeavoided.Numericalexamplesforsome3Delasticproblemsweregiventoshowthecharacteristics.Thecomputationresultsobtainedbythepresentmethodareinexcellentagreementwiththeanalyticalsolution.Theparametersthatinfluencetheperformanceofthismethodwerestudiedthroughthenumericalexamples.

简介：CascadicmultigridtechniqueformortarWilsonfiniteelementmethodofhomogeneousboundaryvalueplanarlinearelasticityisdescribedandanalyzed.FirstthemortarWilsonfiniteelementmethodforplanarlinearelasticitywillbeanalyzed,andtheerrorestimateunderL2andH1normisoptimal.Thenacascadicmultigridmethodforthemortarfiniteelementdiscreteproblemisdescribed.Suitablegridtrans-feroperatorandsmootheraredevelopedwhichleadtoanoptimalcascadicmultigridmethod.Finally,thecomputationalresultsarepresented.

简介：Formulationintermsofhypersingularintegralequationsfortheinteractionbetweenstraightandcurvedcracksinplaneelasticityisobtainedusingthecomplexvariablefunctionsmethod.Thecurvedlengthcoordinatemethodandasuitablenumericalschemeareusedtosolvesuchintegralsnumericallyfortheunknownfunction,whicharelaterusedtofindthestressintensityfactor,SIF.

简介：Thesingularboundarymethod(SBM)isarecentmeshlessboundarycollocationmethodthatremediestheperplexingdrawbackoffictitiousboundaryinthemethodoffundamentalsolutions(MFS).Thebasicideaistousetheoriginintensityfactortoeliminatesingularityofthefundamentalsolutionatsource.Themethodhassofarbeenappliedsuccessfullytothepotentialandelasticityproblems.However,theSBMsolutionforlarge-scaleproblemshasbeenhinderedbytheoperationcountofO(N~3)withdirectsolversorO(N~2)withiterativesolvers,aswellasthememoryrequirementofO(N~2).Inthisstudy,thefirstattemptwasmadetocombinethefastmultipolemethod(FMM)andtheSBMtosignificantlyreduceCPUtimeandmemoryrequirementbyonedegreeofmagnitude,namely,O(N).Basedonthecomplexvariablerepresentationoffundamentalsolutions,theFMM-SBMformulationsforbothdisplacementandtractionwerepresented.Numericalexampleswithuptohundredsofthousandsofunknownshavesuccessfullybeentestedonadesktopcomputer.TheseresultsclearlyillustratedthattheproposedFMM-SBMwasveryefficientandpromisinginsolvinglarge-scaleplaneelasticityproblems.

简介：摘要腰椎椎弓峡部崩裂（不连）的治疗原则是复位峡部的骨性连接并最终达到腰椎的稳定性。回顾分析35例腰椎椎弓峡部不连行镍钛记忆合金卡钉手术治疗的护理，总结认为术前心理护理、体位及小便训练、术后病情观察及指导功能锻炼是护理成功的关键。

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简介：摘要： 目的： 探讨镍钛记忆合金环抱式接骨器治疗创伤性连枷胸的临床效果。方法： 选取于本院诊治的多处肋骨骨折患者 70 例并随机 分为两组，每组各 35例。对照组给予常规治疗，观察组采取镍钛记忆合金环抱式接骨器治疗， 统计两组患者的呼吸机 使用时间、呼吸窘 迫缓解 时间、出院时间，并对两组患者进行为期 1年的随访，观察患者预后效果。结果： 观察组呼吸机使用时间、呼吸窘迫缓解时间，及出院时间 显著短于对照组 (P<0.

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简介：Thesuperedge-connectivityofagraphisanimportantparametertomeasurefault-toleranceofinterconnectionnetworks.ThisnoteshowsthattheKautzundirectedgraphissuperedge-connected,andprovidesashortproofofLueandZhang'sresultonsuperedge-connectivityofthedeBruijnundirectedgraph.

简介：如果你有过转换DVD的痛苦过程，那么就该看看今天的主角．他会告诉你一款优秀的DVD转换软件所应有的素质。

简介：灯光！摄影机!秀起来!这是Aspyr公司给我们带来模拟人生(TheSims)的第七个资料片，在这个奇妙的虚拟世界，玩家终于可以扮演明星，享受一下被“追星”的乐趣了。

简介：在1996，中国运行了一个程序由把intersubspecific杂种优势与理想的植物类型相结合引起超级米饭或超级混合米饭。今天，约80个超级大米变化被释放了，他们中的一些在领域实验显示出1221t/hm2的高谷物收益。为超级米饭变化的高收益的主要原因，与那些相比常规变化，能如下被总结：更多的小穗状花小穗每圆锥花序和更大的水池缩放(每平方米小穗状花小穗数)；更大的叶区域索引，绿叶的更长的持续时间，更大的光合的率，更高的住宿抵抗，在出发阶段前的更大的干燥的事累积，从到谷物的茎和叶子的pre-stored糖类的更大的动员在充满谷物的时期期间；并且更大的根系统和更大的根活动。然而，在超级米饭生产有二个主要问题：以后花的劣等的小穗状花小穗充满谷物的穷人(与早花的优异小穗状花小穗相对照)，并且低、不稳定的种子背景率。这里，我们在超级米饭的庄稼生理学考察最近的研究进展，集中于生物特征，收益部件的形成，和人口质量。最后，我们在超级米饭的庄稼生理学上建议进一步的研究。

简介：Recently,theBureauofGeologyandMineralExplorationandDevelopmentofGuizhouProvincedetectedanabout140milliontonsresourceinZheng'anCounty,100milliontonsofwhichwasbauxite.Thisistheseconddetectedsuperlarge-scaledbauxitedepositaftertheDazhuyuanbauxitedepositinWuchuanCounty.Intheprospectingarea,theaveragethicknessofvisibledepositis1.8m,andtheaveragegradeofAl2O3is

简介：ＣＨＥＮＯＰＯＤＩＵＭＱＵＩＮＯＡ：Ｓｕｐｅｒ－ＮｕｔｒｉｔｉｏｕｓＦｏｏｄｆｏｒｔｈｅ２１ｓｔＣｅｎｔｕｒｙＺＨＡＮＧＹＯＮＧＱＩＮＧ＆ＤＯＱＵＮＧＣｈｅｎｏｐｏｄｉｕｍｑｕｉｎｏａ，ｗｈｉｃｈＰｌａｔｅａｕ，ＳｏｕｔｈＡｍｅｒｉｃａ，ｆｏｒｔｈｏ...

简介：<正>正在成功展开世界巡演"SUPERSHOW4"的SuperJunior,继韩国、日本、中国台湾、新加坡之后,成功登陆中国澳门开唱,并取得了巨大的成功。SuperJunior于3月9日、10日两天,在澳门Venetian酒店内的CotaiArena开启的"SUPERJUNIORWORLDTOURSUPERSHOW4inMACAU",以华丽的舞蹈表演和激情四射的舞台,赢得了无数歌迷热烈的反响。特别是,这次出演是SuperJunior第一次在澳门举行单独演唱会,门票预售刚刚开始就售磬,吸引了当地歌迷高度的关注,因此追加一场演出。

简介：　　一、填空题(每小题4分,共28分)　　1.中华人民共和国国旗上的五个五角星是_的图形.……

简介：人各有不同，有些人像圆形，侍人处事聪明圆滑；有些人像正方形，有棒右角，不容别人些许的冒犯。一起来测测，看看你在比尔心目中是什么形状。

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