简介："Sightcanbeacquired,Visioncannot".OrindRefractoriesLimited(ORIND),Chinawasformedwiththisrarevision.AtatimewhentheworldwastestingthetepidwatersofChina;Mr.RavinJhunjhunwala,ChairmanofORINDandthemanagementofORINDIndiahadlookedovertheGreatWalltobeginajourneyofsuccess.Incorportedon18thAugust1994withaninitialinvestmentofUSD5million,ORLcaterstotheever-demandingneedsofthesteelindustryandbeyond.IncidentallyORINDwasthefirstwhollyownedIndiacompanytosetupbaseinChina.Pesently,ORINDChinahasa616strongworkforceincluding23expatriates.

简介：ThePacificTunasPrivateLimitedisajoint-venturecompanyregisteredinSingaporewithajointinvestmentfromSingaporcTunasPteLtd.andtheCIECExhibitionCompany(H.K.)Ltd.,asuhsidiaryoftheChinaInternationalExhibitionCorporationundertheChinaCouncilforthePromotionofInternationalTrade.

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简介：Ultrapureferriticstainlesssteelisakindofnewstainlesssteelgradewithhighqualitydevelopedinthemid-twentiethcentury,itischaracterizedbyultralowCarbonandNitrogencontentandmicro-alloyingwithTi,Nb,V,Cuetc.,soitovercomesalotofuseshortcomingsoftheordinaryferriticstainlesssteel,suchasintergranularcorrosionsensitivity,lowductilityandtoughnessunderatmospheretemperature,crackincliningattheweldzoneetc.,namely,ithasbetterperformancethantheordinaryferriticstainlesssteelintheaspectofcorrosionresistance,toughnessandweldabilityetc.Furthermore,aseriesofsecondaryrefiningequipmentsandtechnologieshavebeeninventedfromthe1960s,loworultralowCarbonandNitrogencontentinthemoltenstainlesssteelcanbeobtainedduringmanufacturingproduction.Therefore,suchsteelhasbeenappliedinmanyfields,leadingtotheveryrapiddevelopmentoverthepasthalfcentury.Thispaperfocusesonthesecondaryrefiningprocesswhichisthemostimportantstepofthewholesteel-makingprocessfortheultrapureferriticstainless.Firstly,somedifficultiesofthesecondaryrefiningprocessaredescribed,includingthehighpurificationintermsofbothCarbonandNitrogencontents,highefficientandstablecontrol.Secondly,thedevelopmentandprogressofthesecondaryrefiningtechnologyforultrapureferriticstainlessisintroducedintermsoftherefiningequipments,metallurgicalprocessandassistanttechnologies.SomemostfamoussecondaryrefiningequipmentsandmetallurgicaltechnologiesforultrapureferriticstainlesssteelhadbeeninventedmainlybyJapanandEuropeancompaniesfrom1960sto1990s,suchasVOD,SS-VOD,AOD-VCR,VOD-PBetc..Duringthesametimeofwideapplicationofthesesecondaryrefiningequipmentsandtechnologies,inordertostrengthenthefunctionandcapacityoftheserefiningequipments,someadvancedassistanttechnologieswerealsointroducedandapplied,whichconsistsoftoplance,specialrawmaterials,ladlerefracto

简介：Thispaperanalyzesaqueuemode]ofthepollingsystemwithlimitedservice(K=1)indiscretetime.BytheimbeddedMarkovchaintheoryandtheprobabilitygeneratingfunctionmethod,themeanvaluesofqueuelengthandmessagewaitingtimeareexplicitlyobtained.Also,wegivethesimulationresults.TheresultsobtainedbyH.Tagai(1985)arerevised.

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简介：我们在场散开的一个计算机模型与线arseed限制了聚集。有改变线性种子长度的簇被模仿，并且他们的模式结构，分数维的尺寸和多分数维的光谱被获得。如果它的长度比较地更短，模拟结果证明线性种子长度在聚集簇的模式结构上有小效果。与它的增加，线性种子长度有更强壮的效果在模式结构，当尺寸D-f减少时。当线性种子长度更大时，相应模式结构同样地是生气的。线性种子长度越大，越多明显有在二点聚类的更多的粒子的跨like结构线性种子并且沿着垂直方向结束到线性种子的中心。而且，multifractralspectra曲线变得更低并且奇特的范围更狭窄。线arseed的长度越长，模式变得越不不规则、不一致。

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简介：Dropshaftsareverticalstructureswidelyusedinurbandrainagesystemsandbuildingsforwatertransportation.Inthispaper,aphysicalmodelstudywasconductedtoinvestigatetheairentrainmentinthedropshaftundervariousflowregimeswithandwithoutairventilation.Observedfromtheexperiments,theairentrainmentmechanismsvariedwiththewaterflowregimesinthedropshaft.Whentherewasnowaterplugformedinthedropshaft,aircouldbesupplieddirectlyfromdownstream.Oncethewaterplugwasformed,whilewithoutventing,theairwasreplenishedonlyfromdownstreamintermittentlyandthenintheformoflargeairbubbletravelingupwardstotheairspaceatthetop;whilewithventing,airwasmainlyreplenishedfromthedropshafttopandnolargeairbubblewasobserved.Theexperimentalresultsalsoshowedthattheamountofentrainedairinthedropshaftwithventingwasgreaterthanthatwithoutventing.

简介：1IntroductionPollingsystemstriggeredextensiveresearcheffortsthatcontinuedoverthelasttwodecades.Duringthisperiodnumerousresearchersfromallareas,mainlyengineering,findthatpollingsystemsarepowerfultoolsinmodelingawidevarietyofapplications.Therangeofapplicationsinwhichpollingmodelcanbeusedisverybroad.Ontheba-sisofthecyclicpolling,inthispaperanewmodel,theasymmetriccyclicpollingmodelwithlimited(k=1)serviceindiscretetimeinloopLANofATMnetworks,issetup,andithasthefollowingcharacteristics:

简介：AccordingtothenoticeoftheOfficeofPlanned,SafeandEffectiveUseofElectricity(shortasOPSEUE),allnon-industrialconsumers,suchashotels,shoppingcenters,areaskedtouseenergysavinglampsinsteadofincandescentlampandtoeliminateinductiveballastswithinthecoming3years.

简介：Bydeducingthedistributionofthenormalizedchannelcovariancematrix,anovellimitedfeedbackschemeisproposedundermultipleusers(MU)multiple-inputmultiple-output(MIMO)broadcastchannel(BC)system.Theproposedschemehasadvantagesinthreeaspects.First,ithasnoconstraintsonthenumberofusersorantennas.Second,eachuser'sfeedbackbitsareindependentofthenumberofreceivingantennas.Third,theproposedschemeavoidsthestorageoflarge-sizecodebookonthetransceivers.Simulationresultsshowthattheperformanceoftheproposedschemeisclosetotheperfectchannelstateinformation(CSI)caseanditjustneedsasmallnumberoffeedbackbits.

简介：ThetechnologyforseparatingtheMTOproductsindependentlydevelopedbytheWisonChemicalEngineeringLtd.willbeappliedintheseparationunitofthephaseI680kt/asecond-generationDMTOdemonstrationunitattheShaanxiPuchengCleanEnergyChemicalLimitedLiabilityCompany,

简介：WestudyhowtousetheSR1updatetorealizeminimizationmethodsforproblemswherethestorageiscritical.Wegiveanupdateformulawhichgeneratesmatricesusinginformationfromthelastmiterations.Thenumericaltestsshowthatthemethodisefficent.

简介：FalsesharingisoneofthemostimportantfactorsimpactingtheperformanceofDSM(distributedsharedmemory)systems,Thesingle-Writerapproachissimple,butitcannotavoidtheping-pongeffectofthedatapagethrashing,whilethemultiple-writerapproachiseffectiveforfalsesharingbutwithhighcost.Thispaperproposesanewapproach,calledlimitedmultiple-writer(LMW)tohandlingmultiplewritersinsoftwareDSM.Itdistinguishestwokindsofmultiple-writeraslock-basedformandbarrier-basedform,andhandlesthemwithdifferentpolicies.ItdiscardstheTwinandDiffintraditionalmultiple-writerapproach,andsimplifiestheimplementationofmultiple-writerinsoftwareDSMsystems.TheimplementationofLMWinaCVM(CoherentVirtualMachine)SoftwareDSMsystem,whichisbasedonanetworkofworkstations,isintroduced.EvaluationresultsshowthatforsomeapplicationssuchasSOR(SuccessiveOVer-Relaxation),LU(LowertriangularandUppertriangular),FFT(FastFourierTransformation),andIS(IntegerSorting),LMWprovidesasignificantreductioninexecutiontime(11%,16%,33%and46%)comparedwiththetraditionalmultiple-writerapproachontheplatform.

简介：Appliedstatisticiansareoftenconfrontedwithstatisticalinferenceproblemsdealingwithsituationsinwhichthereappeartobenodata,ordataofonlylimitedusefulness.Forexample,whenattemptingtofindaconfidenceintervalforabinomialproportion,thesamplemaycontainnosuccesses.Suchascenariocouldbeencounteredwhenattemptingtoestimatetheincidenceofanextremelyraresideeffectassociatedwiththeadministrationofanewlydevelopeddrug.Inthisarticle,weuseexamplesforourexperiencesworkingwithscientificinvestigatorsanddescribeseveralscenariosinwhichthereappearedtobenousefuldata,ordataofonlylimitedusefulness.Wedescribethemethodswepreferforanalyzingthedatainthesesituationsandillustratetheirapplicationusingtheactualdatafromtheinvestigationsweparticipatedin.

简介：ThispaperresentsanewX-rayimagingmethodswingLaminography(SL)thatissuitalbletoperformnon-destructivetestingontheslender-shapedmulti-layersamples.ComputersimulationsaremadetocomparethelimitedprojectionsinSLandtheprincipleofchoosingOptimalProjectionAngularRegion(OPAR)isdiscussed.Theexperimentonatwo-layerPrintedCircuitsBoardshowsthatSLwith120°swinganglesdistributedinOPARcangettheseparatedimagesofeachlayer.

简介：有动人的平台的摇晃的桌子广泛地在实验室测试结构的模型和完整大小的设备被使用。在大多数情况中，平台运动应该复制真实地面加速记录。然而，站台的击，为真实记录的复制要求了，通常相当大。这限制不在摇晃的桌子边允许扎根的运动的一条精确认识。通常，以便克服这个问题，原来的记录被修改，它在加速记录系列引起一个重要变化。那是对原版并且到修改记录的结构的回答是不同的原因。为原来的加速记录的修正的一个新方法被建议，在哪个原来的记录被改变摇晃的平台排水量的另外的人工的改正。改正的记录作为推动的一个序列被获得。每推动的大小和持续时间，以及他们在时间的地点可伸缩，被一个优化过程获得。优化根据一个表演索引被实现，试图在原来的光谱上最小化改正的加速记录的影响。建议方法有更高的繁殖精确性，与另外的已知的方法相比。它的有效性被反应系列的比较和受到自然、修改的地震刺激的三有多层楼的结构的动态行为表明。

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