简介:Astraditionalsingle-factorelectricityintensitycannotrevealtherealelectricityconsumptionefficiencyaccurately,thisstudyappliesthedataenvelopmentanalysis(DEA)approachtocalculalethetotal-factorelectricityconsumptionefficiencyofChina’s33industrialsectorsfromyear1998to2007,andusestheTobitmodeltoanalyzetheinfluentialfactorsofelectricenergyefficiency.TheresultshowsthatChina’sindustrialelectricityefficiencyisuniversallylow.Furtherstudyshowsthatindustrialstructureandtechnologicalprogresshavepositiveinfluenceonconsumptionefficiency,whileindustryconcentrationandelectricitypricehavenegativeinfluenceonconsumptionefficiency.Theeffectofpropertyrightstructureisfluctuated.Therefore,tooptimizeindustrystructure,promotetechnologicalprogress,maintaincompetition,anddeepenthereformofelectricitypricearebeneficialfortheimprovementofelectricenergyefficiency.
简介:IntheMetalsIndustry,interruption-freeprocessestoproducehigh-qualityendproductsareaprerequisite.Themaindrivestogetherwiththemillstandsplayakeyroleinthesuccessofrollingmills.Thecrucialdemandsplacedonthedrivesystemare:high-dynamicperformanceofdriveanditscontrolsystem,abilitytohandletheprocessrelatedoverloads,smoothrunning,highavailability,highefficiency,easyserviceabilityandabilitytointegrateseamlesslywiththeautomationsystems.WithnumerousreferenceinstallationsandmanyyearsofexperienceSiemensVAIhasthewiderexpertiseandtheportfoliotoprovidetherightdriveforeveryapplication.Thispaperexaminesthelatestinnovation,SINAMICSdrivetechnology,forbothnewdriveapplicationsaswellasformodernizingtheexistingdrivesinrollingmillapplicationslikehotstripsmills,platemills,coldrollingmills,andlongrollingmills.
简介:新奇分布式的调节液体更潮湿(DTLD)在这篇论文为在结构减少颤动被建议。DTLD的基本工作原则是在cast-in-situ的管子或框内充满空空格空的有水或另外的液体的增强的水泥(RC)地板平板。管子或盒子然后在结构内作为一系列小TLD工作,到增加全部结构的系统的抑制比率。为联合的fluidstructure的报道完成的数字模拟被执行评估DTLD的颤动减小效率。结果证明DTLD能更加增加抑制结构并且因此减少它的颤动。一个另外的好处是DTLD不要求建筑上的空间被加到结构。
简介:IntheapplicationofRNAitechnology,itisanessentialsteptodesignsiRNAapplicabletotargetgene.Atpresent,therearemanyresearchesandconclusionsonsiRNAdesign.ThispaperaimstotheinfluencesofmRNAsecondarystructureorsiRNAantisense-strandsecondarystructureonsiRNAsilenceefficiency.Thepaperalsodiscussestheproblemsandsetsoutfurtherinsightsintheresearch.
简介:Coordinatedmulti-pointtransmission/reception(CoMP)wasproposedcurrentlyasaneffectivetechnologytoimprovecell-edgethroughputinnext-generationwirelesssystems.Mostoftheexistingworkdiscussedclusteringmethodsmostlytomaximizetheedgeuserthroughputwhileneglectingtheproblemofenergyefficiency,suchasthosealgorithmclusteringbasestations(BSs)ofbetterchannelconditionandBSsofworsechannelconditiontogether.Inaddition,BSsusuallyincreasethetransmitpowertoachievehigherthroughputwithoutanyconsideringofinterferencecausedtootherusers,thatmayresultinenergywaste.TheauthorsfocusonthethroughputmaximizingproblemwhilefullyconsideringenergysavingprobleminCoMPsystems.Acoefficientisdefinedtodescribethefitnessofclusters.Thenasub-carrierallocationalgorithmwithclusteringmethodisputforwardforCoMPdownlink,whichcansavethetransmitpowerofBSandincreasethethroughput.Furthermoreapowerallocationschemeisproposedbasedonnon-cooperationgame;inwhichthetransmitpowerisdecreasedbyBSsgenerallytoreachtheNashequation(NE).Simulationshowsthattheproposedsub-carrierallocationschemeandpowerallocationalgorithmarebetterthantheexistingonesonusers’throughputwhileconsumesmuchlessenergy.