简介：为前面的kinematics的一个系统的方法一自由(5-DOF)的五度有腿的平行机制“拓扑学4-UPS/UPU，被开发。如此的机制由四相同6-DOF连接到底的一个活动平台组成加有它作为活动站台的指定DOF一模一样的DOF的一活跃手足的活跃手足。Threetranslational和二旋转DOF能被完成。第一，前面的位置分析的一套多项式方程基于机制的建筑学被提出。然后，方程的系统被降级从对五维借助于分析消除三维。最小平方和高斯牛顿算法的方法被用来构造客观功能并且解决它。分别地。通过在16ms以内的4倍的重复，客观功能集成到提供的误差公差的例子表演，10~(-4)。

简介：MINDO/3MOmethodhasbeenusedtostudythemechanismoftheconsecutiveadditionofHCNtopropionitrile.Theresultsobtainedforthefirstfivestepsshowthatthereactionisexothermic,andstep1istheratedeterminingstep.

简介：Carbidesinaseriesofcold-weldingweldmetalswerestudiedbymeansofSEM,TEMandEPMA,andtheformingmechanismofcarbidewasproposedaccordingtotheirdistributionandmorphology.Duetotheirdifferentcarbide-formingtendency,NbandTicouldcombinewithCtoformparticulatecarbideinliquidweldmetalanddepletedthecarboncontentinmatrix,whileVinducedthecarbideprecipitatedalonggrainboundary.ButtoomuchNborTialoneresultedincoarsecarbideandpoorstrengthenedmatrix.WhensuitableamountofNb,TiandVcoexistedinweldmetal,bothuniformlydistributedparticulatecarbideandwellstrengthenedmatrixcouldbeachieved.Itwasproposedthatthecarbidenucleatedontheoxidewhichdispersedinliquidweldmetal,andthengrewintomulti-layercomplexcarbideparticlesbyepitaxialgrowth.Atdifferentsites,carbideparticlesmaypresentasdifferentmorphologies.

简介：Theadsorptionbehaviorsandmechanismofanovelchelateresin,macroporousphosphonicacidresin(PAR)forGd(Ⅲ)wereinvestigated.Thestaticallyanddynamicallysaturatedadsorptioncapacityisrespectively308mg·g-1resinand296mg·g-1resinat298KinHac-NaAcmediumatpH5.6.Gd(Ⅲ)adsorbedonPARcanbereductivelyelutedby0.5～5.0mol·L-1HClusedaseluantandtheelutionpercentageisupto94.7%in1.0mol·L-1HCl.Theresincanberegeneratedandreusedwithoutapparentdecreaseinadsorptioncapacity.Theapparentadsorptionrateconstantisk298=3.96×10-5s-1.TheadsorptionbehaviorofPARforGd(Ⅲ)conformstotheFreundlichisotherm.Thethermodynamicadsorptionparameter,enthalpychange△HofPARforGd(Ⅲ)is22.6kJ·mol-1.Theapparentadsorptionactivationenergy(Ea)ofPARforGd(Ⅲ)is5.0kJ·mol-1.ThemolarcoordinationratioofthefunctionalgroupofPARtoGd(Ⅲ)isabout3∶1.TheadsorptionmechanismofPARforGd(Ⅲ)wasexaminedbyusingchemicalmethodandIRspectrometry.

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简介：Globalclimatechangehasbeenidentifiedasthefirstofthetoptenenvironmentalproblemsintheworld.Asclimatechangewillhaveseriouseffectsonthesocialandeconomicdevelopmentandeverydaylivingofpeopleintheworld,manyofthecountriesandgovernmentsaretakinguntiringeffortstocombatclimatechange.Asoneoftheimportantmechanismsofreducinggreenhousegas(GHG)emissionsintheKyotoProtocol,CleanDevelopmentMechanism(CDM)hasnotonlyprovidedchancefordevelopedcountriestofulfillgreenhouseemissionreductionobligations,butalsoprovidedanopportunityfordevelopingcountriestocombatclimatechangeunderthesustainabledevelopmentframe.Thedualobjectivesofdevelopedcountries'GHGemissions'reductionobligationachievementanddevelopingcountries'sustainabledevelopmentwillbeachievedundertheCDM.Asacountrywithresponsibility,ChinahasbeenpositivelydevelopingCDMprojectsandpromotingenergysavingandemissionsreductionduringthethreeyearsaftertheKyotoProtocolcameintoforce,andCDMprojectsdevelopmenthasalwaysbeeninthefronttankintheworld.However,asthevastclimewithinChina,notabledifferencesoccurindifferentregions.InordertopromotetheCDMdevelopmentinChina,itisnecessarytohaveregionalCDMcapabilityconstructioninaccordancewiththepracticalityindifferentregions.BasedontheSlatAnalysisofdevelopedCDMprojectsandcurrentCDMdevelopmentstatusinChina,problemsintheCDMdevelopmentofChina,includingtheinefficiencyinsmallandmedium-sizedCDMProjectsdevelopment,overcentralizationofCDMdevelopmentscopeandespeciallythedifferentiatedprovincialCDMprojectsdevelopingcapabilityarepointedoutinthepaper.What'smore,reasonsfortheproblemsareanalyzedfromtheleadingfactors,includingpolicyorient,informationasymmetryandweakCDMcapability.InordertopromoteCDMprojectsdevelopmentinChina,anewCDMcapabilityconstructionmodelisputforwardinthepaper

简介：Withthesocialandeconomicdevelopment,conflictamongtheshortageofresources,environmentaldestructionandeconomicdevelopmentisevermorepronounced.Inthiscontext,thecirculareconomywasgraduallyaccepted.Guidedbysustainabledevelopmentconceptandpromotedbysixexternalforces,tourismcirculareconomytaketourismmicro-cyclemodelasthecore,implementincorporateandsociallevels,improveresourceutilizationefficiency,reducetourism'sadverseimpactsonthesurroundingenvironmentthroughrecycling,reducingandreusingresources,achieveeconomic,socialandenvironmentaldevelopmentoftheorganicunity.

简介：ThekeratinsofwoolunderwentPhotooxidationtoformaweakerluminophorinvisibleblueregion(λmax=420nm),thatreactswithceriumiontoproduceanenhancedluminophorcomplex(λmax=426nm),itmakeswoolwhiteobviously.

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简介：Thereexistsauniversalphenomenathatsodiumionsareleakedfromthestrongbasicanionexdchangerinoperation,whichhasbeenpuzzlingtheresearchersworkinginthefieldofwatertreatmentforyears.Itiswellknownthattheleakageofsodiumionswillseriouslyaffectthepruityofeffluent.Onthebasisoflotsoflaboratoryandindustrialexperiments,themechanismofthesodiumionsleakedfromananionexchangerhasbeenpreliminarilymadeoutandsomenewchemicalreactionequationsaswellassomeimprovingmeasureshavebeenputforwardinthisarticle.

简介：Inthispaper,aquantitativeQoSmanagementimplementmechanisminIP-DiffServispresented.Theapproachhasthreemerits:(1)itoptimizesboththerouteselectedforserviceclassbytrafficengineeringinnetworklayerandtheserviceclassselectedfortheuserservicesbynetworkplaninservicelayer,(2)itensuresquantitativeQoSfortheuserserviceinDiffServ,(3)itachieveshighresourceutilization,andachievesbetterperformancewithlesscostfortheuserserviceandselectedroute.Simulationhasverifiedthesemerits.

简介：macroporous的吸着性质为La3+离子的弱酸树脂(D113)被化学分析和红外系列学习。试验性的结果显示D113树脂在pH=为La3+有一个好吸附能力6.0在HAc-NaAc媒介。静态地浸透的吸附能力是273.3mg/g。La3+/Ce3+，La3+/Gd3+，La3+/Er3+，和La3+/Y3+的分离系数分别地是2.29，3.64，4.27，和0.627。吸附的明显的激活精力，Ea是吸着的18.4kJ/mol，热力学参数H，S，和G是4.53kJ/mol，61.8J/(mol.K)，?13.9kJ/mol分别地。为La3+的D113的吸附行为服从Freundlich等温线。在树脂上吸附的La3+能是由2.0mol/LHCl份量上的eluted。

简介：Inshallowcrust,faultsoftenconsistofaseriesofsecondaryfractures.Basedonexperimentalmicro-featuresinrockmechanicsandmacro-structuresinfield,theprogressivecoalescencemodel,inwhichabrittlefaultevolvedfrommicro-crack,styloliticfracture,largefaulttosuper-largefault,isfounded,anditsformingmechanismisdiscussedbyvariationofstressfield.Atlasttheundulation,branchesoffaultsandthephenomenonthattheanglebetweenfracturesandtheprincipalstressaxisdecreasesgraduallyareexplainedbytheG.C.Sihmodel.

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简介：Motioncontrolcanbeconsideredasthesynergisticcollaborationofmechanicalandelectricalengineering,computerscienceandinformationtechnologytoapplyacontrolledforcetoachieveusefulmotioninfluidorsoiledelectromechanicalsystems.Withthedevelopmentofcomputer,electronics,andautomaticcontroltheory,motioncontrolcomestoanewstage.Greatapplicationsarebasedonthecharacteristics,stemmingfromadvantagesofelectronicsandmoderncontroltechnologyachievements,havingaverygoodloadmatchingproperty.Currently,microprocessor-basedcontrollersareinvariablyusedinmostapplicationsofdriveelectronics.Theobjectofthisworkistodesignapositioncontrolmechanismsystem,whichcanbeusedintestsectionoflowspeedwindtunnel.Systemloadspecificationsandperformancerequirementsaregiven.Acomprehensivestudyofmathematicalmodelingofthemechanismcomponentsisgiven.Procedureforselectionofvariouscomponentswithoptimumparametersisdiscussed.Afterselectionandcalculationofsystemparameterstomeettheperformancerequirements,aPIDcontrolmethodisadopted.

简介：Ecologicalcityistheadvancedmodeofharmoniousdevelopmentofcity.Constantimprovementisbeingmadeinthedevelopmentofecologicalcity.However,buildingecologicalcityisanenormousprojectthatcallsforahugeamountofcapital.Thegovernmentfundisfarfromadequate.Thispaperprobesintothefundissueanddiscussesindetailthemechanismofinvestmentandfinancinginbuildingecologicalcityfromvariousaspectssuchasdiversificationoftheinvestmentsubjectsandthemodesoffinancing.

简介：哺乳动物的精子必须经历一系列生物化学、生理的修正，一起叫的capacitation，在在acrosome反应(AR)以前的女繁殖的道。尽管蛋白质kinases被显示在capacitation和AR期间涉及细胞内部的Ca2+的规定，这些修正的机制很好没被描绘。在现在的评论，我们总结一些涉及capacitation的发信号的事件。在capacitation过程期间，phosphatidyl-inositol-3-kinase(PI3K)是经由一个蛋白质kinaseA(PKA)依赖者的phosphorylated/activated由蛋白质kinaseCα的串联，和downregulated；(PKCα；)。PKCα；在capacitation的开始是活跃的，导致PI3Kinactivation。在capacitation期间，PKCα；象PP1γ一样；2被PKA依赖的机制降级，允许PI3K的激活。PKA的激活主要在capacitation期间取决于酸式碳酸盐依赖者生产的周期的腺苷monophosphate(营地)可溶的adenylylcyclase。PKA的这激活在肌动朊聚合导致增加，必需品为hyperactivated活动性的发展处理，它为成功的授精是必要的。肌动朊聚合被果仁2以二个方法调停：首先，果仁2为phospholipaseD(PLD)激活，和秒充当一个余因子，作为绑并且禁止象gelsolin那样的切断肌动朊的蛋白质的一个分子。gelsolin的酷氨酸phosphorylation为它的inactivation也在由Src家庭kinase(SFK)的capacitation期间是重要的。在AR以前，gelsolin被免除果仁2并且经历dephosphorylation/activation，导致AR，导致快F肌动朊depolymerization。

简介：Indespiteoffluctuationinrecentyears,thegrainyieldinChinahasbeenincreasing,whichrelievestheconflictbetweensupplyanddemandandturnsthesituationoffoodsecuritygood.However,becauseoftherapidincreaseinfoodconsumption,theconflictsoffoodqualityandstructureinthesupplyanddemandequilibriumhasbecomemoreandmoreobviousandthelong-effectivemechanismoffoodsecurityhasnotbeenestab-lishedyet.ItisfoundthatthefactorsaffectingfoodsecurityinChinaincludethescarcityanddissipationofresources,farmers’lowenthusiasminplantinggraincropsandtheinappropriatenessoftheemphasisandmeasuresofmacro-economicregulationandcontrol.Therefore,theauthorsadvancetooptimizeresourcesallocation,strengthenmacro-economicregulationandcontrolandpolicystimulationandestablishthemechanismofallocatinggrainproductioncost,tosetupthelong-effectivemechanismofChinafoodsecurityandkeepitstableinthelongterm.

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