简介：合作中继技术能极大地改进多重输入和多重输出(MIMO)的能力无线系统。为各种各样的中继协议的transmit力量分配(TPA)策略为改进精力效率变得很重要。这篇文章在中继系统的MIMO合作社建议新奇TPA计划。二种不同情形被考虑。一个人是在的混合decode-and-forward(HDF)协议零力量(ZF)过程被操作中继，并且其它是有继电器节点和天线选择策略的decode-and-forward(DF)协议。模拟结果显示建议计划能由利用继电器连接的性质引起重要电容获得。另外，当有更少继电器节点的相等的TPA使用了，在HDF系统的建议TPA计划能完成一样的能力。最后，当继电器节点的分发范围膨胀时，有建议计划的电容获得增加。

简介：

简介：Astraditionalsingle-factorelectricityintensitycannotrevealtherealelectricityconsumptionefficiencyaccurately,thisstudyappliesthedataenvelopmentanalysis(DEA)approachtocalculalethetotal-factorelectricityconsumptionefficiencyofChina’s33industrialsectorsfromyear1998to2007,andusestheTobitmodeltoanalyzetheinfluentialfactorsofelectricenergyefficiency.TheresultshowsthatChina’sindustrialelectricityefficiencyisuniversallylow.Furtherstudyshowsthatindustrialstructureandtechnologicalprogresshavepositiveinfluenceonconsumptionefficiency,whileindustryconcentrationandelectricitypricehavenegativeinfluenceonconsumptionefficiency.Theeffectofpropertyrightstructureisfluctuated.Therefore,tooptimizeindustrystructure,promotetechnologicalprogress,maintaincompetition,anddeepenthereformofelectricitypricearebeneficialfortheimprovementofelectricenergyefficiency.

简介：Energyplaysanimportantroleintheeconomiclife.Withtherapiddevelopmentofeconomy,theconstraintofenergyonthesustainabledevelopmentofeconomyisbecomingmoreandmoreobvious.ThispaperjuststudiesthefactorsinfluencingenergyefficiencyofChinaandtherelationshipbetweenenergyefficiencyandChina'seconomicgrowth.ByusingtimeseriesmultivariablelinearregressionmethodswithChina'srelevantdatafrom1953to2006,thispaperconstructstheregressionmodeltoanalyzethefactorsthatwouldimpactenergyefficiency.Afterthat,aregressionmodelofChina'srealoutputtocapital,laborandenergyefficiencyisconductedtoestimatethemarginalcontributionofeveryfactortotherealoutputtoprovethefundamentalinfluenceofenergyefficiencytotheeconomicgrowth.Intheend,somepoliciesandrecommendationsarealsoputforwardinordertoimprovetheenergyefficiencyofChina.

简介：ThispaperanalyzesthegovernmentcontrolofbuildingenergyefficiencyinChinafromtheaspectsofpoliciesandregulations,technicalstandards,pilotdemonstrationprojectsandeconomicmeans,andexpoundsthecharacteristicsandproblemsofgovernmentregulationpracticeinChina.Itisfoundthatthegovernmentregulationofbuildingenergyconservationinourcountryhassomeproblems,suchasimperfectsystem,weakincentivepolicy,imperfectmanagementsystem,andthelackofpublicparticipation.Throughthedeepanalysisoftheexistingproblems,itispointedoutthatthefundamentalreasonforthepooroperationofChina’sbuildingenergyefficiencymarketliesinthelackofunderstandingofthebuildingenergyefficiencymarket,thelackofgovernmentadministrativefunctionsandtheweakconsciousnessofthemainbody.

简介：Chinahaswitnessedrapideconomicdevelopmentsince1978,andduringthetime,energyproductionandconsumptiondevelopedatatremendousspeedaswell.EnergyefficiencywhichcanbemeasuredbyenergyconsumptionperunitofGDP,however,experiencedcontinuousdecrease.Theoretically,thechangeofenergyefficiencycanbeattributedtoindustrystructuralchangeandtechnologicalchange.InordertoexplainthetransformationofChineseenergyefficiency,weadoptlogarithmicmeanDivisiaindextechniquestodecomposechangesinenergyintensityintheperiodof1994-2005.Wefindthattechnologicalchangeisthedominantcontributorinthedeclineofenergyintensity,butthecontributionhasdeclinedsince2001.Thechangeinindustrystructurehasdecreasedtheenergyintensitybefore1998,butraisedtheintensityafter1998.Decomposedtechnologicaleffectsforallsectorsindicatethattechnologicalprogressesinhighenergyconsumingindustriessuchasrawchemicalmaterialsandchemicalproducts,smeltingandpressingofferrousmetals,manufactureofnon-metallicmineralproductsandhouseholdcontributearetheprincipaldriversofChina'sdecliningenergyintensity.

简介：这篇文章分析在三节点的继电器网络中继计划，选择中继计划和增长中继计划修理的精力效率表演。靠近形式的asymptotic精力每好小点(EPG)为在高signal-to-noise的最先进的中继协议的表情比率(SNR)政体被导出。在精力消费模型，传播，电路和重发的明确的表达，精力都被考虑。为了便于在不同中继之间的精力效率表演的比较，协议，连接可靠性和重发可能性被asymptotic停止可能性在使假设褪色的瑞利下面在高SNR政体决定。计算机模拟在对称、不对称的继电器网络被执行。模拟结果显示出在这些最先进的中继协议之间的系统精力开销的差别。最后，一些实际含意能由观察制造。

简介：Basedonthetotal-factorenergyefficiencyframework,thispapercalculatesChina'sindustrialenergyefficiencyandCO2emissionsreductionpotentialfrom2000to2009byutilizingthedirectionaldistancefunctionanddataenvelopmentanalysis.Theempiricalresultsshowthat:China'sindustrialoverallenergyefficiencyisrelativelylowerwhiletheemis-sionsreductionpotentialisrelativelygreater,giventheoptimumproductionfrontier.Significantindus-trialdisparitiesofenergyefficiencyandemissionsreductionpotentialexist.Energyefficiencyandemis-sionsreductionpotentialsignificantlyshowdifferenttendenciesofindustrialdynamicvariation.ThispapersuggeststheChinesegovernmentimposedifferentialcarbontaxes,flexiblyutilizecarbonmarketmecha-nism,strengthenenergy-savingtechnologicalR&D,promotetheutilizationofrenewableenergy,andstrengthenenvironmentalsupervisionandregulation,soastoimproveChina'sindustrialenergyefficiencyandreduceCO2emissions.

简介：Inthispaper,theauthorusessuper-efficiencyDEAmodeltomeasurethenationalandregionalenergyefficiencyinChina;usingspatialeconometricmodelandfromtheperspectiveofgeo-spatialspillover,theauthorinterpretsthespatialcharacteristicsofenergyefficiencyandextractsthemainfactorsthatinfluencetheregionalenergyefficiency.Theanalysisresultsshowthat:(1)thenationalandregionalenergyefficiencyisconsistentwithinvertedU-shapedcurve,andthenationwideenergyefficiencygapisincreasing;(2)energyefficiencyhastheobviouseffectofthespatialexternaleffect,andwhenthegovernmentmakesenergysavingstrategies,inter-regionalenergycooperationandtheproliferationofadvancedproductiontechnologyshouldbegivenmorepriority;(3)energyefficiencyhassignificantnegativecorrelationwithgovernmentintervention,industrialstructure,ownershipstructure,theenergyconsumptionstructure,andresourceendowments,andhaspositivecorrelationwiththedegreeofopening-upandenergyprice.

简介：

简介：服务器的差的精力比例为现代数据中心的低精力效率被看作主要来源。我们发现一个应用程序的不同资源配置导致类似的性能，但是有不同精力消费。当表演等价物资源配置(PERC)，和它的性能范围被称为相等的区域，我们叫这现象(嗯)。基于PERC，为改进精力效率的一个基本想法是为每应用从PERC选择最有效的配置。然而，当几千个应用程序在围住资源的服务器上同时被运行时，获得最佳的答案不能支持每个应用程序。这里，我们建议一个启发式的计划，CPicker，基于基因编程到改进服务者的精力效率。加快集中，CPicker由首先从有高精力的区域选择配置初始化一张高质量的人口变化。试验CPicker与神谕盒子相比与贪婪途径，和不到4%效率损失相比在17%精力效率改进上面获得的表演。

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.

简介：

简介：Gettingalongwiththeimprovementofgreencommunications,theenergyefficiency(EE)ofwirelessnetworkbecomesmoreandmoreimportant.However,inmulti-relay-assistedsystems,therelatedworkobviouslydependsontheend-to-endperformance,whereasEEofrelayshasnotattractedenoughattention.Theauthorsproposeanorthogonalfrequencydivisionmultiplexing(OFDM)multi-relaysystembasedonamplifyandforward(AF)mode.TakingincorporatingEEandremainingenergyasfactor,decisioncriteriaofattendingcooperationisdesigned.TheEEbasedasynchronouspoweriterationmethodispresented,andtheexistenceandconvergenceofnashequilibrium(NE)isproven.Furthermore,ajointalgorithminsubcarrierpairing,relayselectionandpowerallocationisgiven.Geneticalgorithm(GA)anditerationmethodareintegratedtoimprovetheconvergencespeedadditionally.SimulationdemonstratestheobviousimprovementofEE,decreaseofpowerconsumptionandincreaseoflifetimeinrelaysofthisalgorithmwiththeconstraintofminimumdatatransmissionrate.

简介：Inordertofindthedominantfactorofenergyefficiencychange,thispaperusesthemodifiedstructuralmodeltoanalyzeenergyefficiencychangefrom1990to2012inXinjiang.Theresultshowsthattheenergyefficiencyincreaseislargelyduetoenergytechnologicalinnovationespeciallybytheindustrialsector,andthecontributionfromstructuralshiftislimited.Therefore,weshouldvigorouslysupportenergy-savingtechnologicalprogressintheindustrialsectoranddevelopthemodernserviceindustrieswithlowerenergyconsumption,inordertorealizethegoalofimprovingenergyefficiency.

简介：IncessantpromotionofpowerefficiencySincelong,powerindustrialenergy-savingspecifications,standardsandmanagementsystemshasbeensystematicallyestablishedpursuanttostatelaws,regulationsandpolicies,andbeensteadilyimprovedthroughoptimization,structureupgrading,andtechnicalretrofitting.Theratioofprimaryenergytransformedintoelectricenergy,theratioofelectricenergyconsumedbyendusersandtheimportantpowertechnicalandeconomicindexeswhichweighnationaleconomicdevelopmentlevel,economicefficiency,energyutilizationef-

简介：

简介：Theaimofthisinvestigationwastodefinetheeffectivenessofnon-contactdryingusingultrasonicvibrations.Diskradiatorswereusedforcarryingoutexperiments,andaspecialdryingchamberwasdesignedtoprovideresonantamplificationofultrasonicvibrations(from130to150dB).Dryingofginsengandothervegetablesdemonstratedthattheapplicationofultrasonicvibrationsreducedpowerinputsby20%incomparisonwithconvectivedrying.Italsoledtoadecreaseof6%infinalmoisturecontent,ifthedurationofdryingwasconstant.Thelevelofintensificationofultrasonicdryingwashigh(upto50gfor1kgofdryingmaterial),whichhelpedtolowerthetemperatureofthedryingagentandimprovethequalityofthedriedproducts.

简介：

简介：~~