简介：Howtoeffectivelyreducetheenergyconsumptionoflarge-scaledatacentersisakeyissueincloudcomputing.Thispaperpresentsanovellow-powertaskschedulingalgorithm(LTSA)forlarge-scaleclouddatacenters.Thewinnertreeisintroducedtomakethedatanodesastheleafnodesofthetreeandthefinalwinneronthepurposeofreducingenergyconsumptionisselected.Thecomplexityoflarge-scaleclouddatacentersisfullyconsider,andthetaskcomparsoncoefficientisdefinedtomaketaskschedulingstrategymorereasonable.Experimentsandperformanceanalysisshowthattheproposedalgorithmcaneffectivelyimprovethenodeutilization,andreducetheoverallpowerconsumptionoftheclouddatacenter.

简介：Soft-switchingtechniquesareattractivetounity-power-factorAC/DCconverterintheviewofthesizereductionandEMIsuppression.Asoft-switchedboostPFCconverterhasbeenstudiedbasedonitstopologyanalysis,PSIMsimulationandcircuitexperiment.Aspeciallimitationofsoft-switchingtechniqueshasbeenfoundintheirAC/DCapplications.

简介：多层的印刷电路董事会(聚氯联苯)的放射排放(RE)将引起电磁的相容性问题。在聚氯联苯的飞机被介绍的为在从力量地面(P/G)减少RE评估去耦电容器的有效性的一个有效数字方法。一个二维的边界元素方法(BEM)被用来建立放射模型。然后，RE被边地的相等的磁性的电流在P/G飞机附近计算。而且，P/G飞机的放射和输入阻抗装了去耦电容器为频率被计算直到5GHz。没有去耦电容器，结果与盒子的那些相比。它证明去耦电容器有效地除了反反响的频率装减少RE。在更高的频率，去耦有效性主要取决于电容器大头针而非价值的寄生电感。

简介：在这份报纸，对连接不平衡提高坚韧性，一个混合合作协议为amplify-and-forward(AF)被建议机会主义的合作，在机会主义的中继和多跳跃的地方，有继电器订的合作(RO)动态地被选择最大化结束结束信号噪音比率(SNR)，并且力量分配系数因此在全部的力量限制下面被优化。而且，有低复杂性的一个suboptimum分配计划被采用泛音平均数的上面的界限建议。模拟结果证明建议计划超过常规AF在线类型拓扑学的变化的机会主义的合作。而且，建议suboptimum分配的效率也在大SNR被验证区域。

简介：Usingthesingleparticletheoryandthenon--flexibilitycollisionmodelofelectronandphoton,theinfluenceoftheuncapturedelectronsontheenergyconversionefficiencyofmulti--photonnonlinearComptonscatteringintheextrastationarylaser--plasmaisinvestigated.Itshowsthatinextrastationarylaser—plasma,theuncapturedelectronsmaketheAtoofthescatteringfrequencyofthemulti--photonComptonfalldownwiththeincreasesoftheincidentradiationelectronspeed,thematerialsoftheincidentcollisionofelectronandphoton,andthenumberofthephotonswhichworkwiththeelectronsatthesametime.Underthemodulationoftheuncapturedelectronstothelaserfield,theenergyconversionefficiencybetweenelectronsandphotonswillfalldownwiththeincreaseoftheelectronincidentradiationspeed,usingthelow--powerelectronsforincidentsource,thelosscanbeefficientlyreduced.

简介：Time-to-DigitalConverter(TDC)isakeyblockusedasthephase/frequencydetectorinanAll-DigitalPhase-LockedLoop(ADPLL).Usually,itoccupiesalargeproportionofADPLL'stotalpowerconsumptionuptoabout30%to40%.Inthispaper,thedetailedpowerconsumptionofdifferentcomponentsintheTDCisanalyzed.APowerManagementBlock(PMB)ispresentedfortheTDCtoreduceitspowerconsumption.A24-bitsTDCcorewiththeproposedPMBisimplementedinHJTC0.18μmCMOStechnology.Simulationresultsshowthatupto84%powerreductionisachievedusingourproposedtechnique.

简介：<正>VishayIntertechnology公司日前宣布推出采用小型PowerPAK1212—8封装的业界首款200V功率MOSFET器件。该器件封装的面积为3.3mm×3.3mm,高度仅为1.07mm,其在提供极为卓越的热性能的同时提供了比SO—8解决方案更小的尺寸。PowerPAK1212—8封装的功率消耗为3.8W,几乎是任何具有TSSOP—8封装尺寸或更小尺寸的MOSFET器件的两倍。该封装典型的热阻仅为1.9℃/W,而SO—8的为16℃/w。除空间节约及其高电压性能外,Si7820DN还具备240mΩ的导通电阻和12.1nC的栅极电荷。新型功率MOSFET的工作结温和存放温度范围规定为—55℃～+150℃。

简介：Demandresponse(DR)isgainingmoreandmoreimportanceinthearchitectureofpowersystemsinacontextofflexibleloadsandhighshareofintermittentgeneration.ChangesinelectricitymarketsregulationinseveralcountrieshaverecentlyenabledaneffectiveintegrationofDRmechanismsinpowersystems.Throughitsflexiblecomponents(pumps,tanks),drinkingwatersystemsaresuitablecandidatesforenergy-efficientDRmechanisms.However,thesesystemsareoftenmanagedindependentlyofpowersystemoperationforbotheconomicandoperationalreasons.Indeed,asufficientlevelofeconomicviabilityandwaterdemandsriskmanagementarenecessaryforwaterutilitiestointegratetheirflexibilitiestopowersystemoperation.Inthispaper,weproposedamathematicalmodelforoptimizingpumpschedulesinwatersystemswhiletradingDRblocsinaspotpowermarketduringpeaktimes.Uncertaintiesaboutwaterdemandswereconsideredinthemathematicalmodelallowingtoproposepowerreductionscoveringthepotentialriskofreal-timewaterdemandforecastinginaccuracy.NumericalresultswerediscussedonarealwatersysteminFrance,demonstratingbotheconomicandecologicalbenefits.

简介：有低通行证的偏爱networkto的高效率的宽带力量放大器(BPA)的一个新奇图案提高效率和产量力量在这份报纸被介绍。与另外的偏爱网络相比，建议低通行证的偏爱网络显示出更小的基带阻抗，它能减少电的记忆效果。当它提供更大的收音机频率(RF)阻抗时，它能阻止输出力量的漏偏爱网络。有建议偏爱网络的BPA用广告被设计轧了设备Cree40025F。设计BPA显示出40%的部分带宽，从1.8GHz到2.7GHz。测量结果展览有在2.7GHz的43.5dBm的输出力量的73.9%排水管效率(DE)价值，它出现与那作比较的9.5%和2.5dBm的改进采用LC偏爱网络。

简介：由于嵌入的设备的限制尽最大努力以精力，处理力量，和记忆缩放的无线连接和资源和有损耗的网络(LLN)的unreliability，网络拥挤可以在一种紧急情况发生并且导致重要的包损失和端对端的延期。减轻网络拥挤的效果，这份报纸基于多度量标准(CCRPM)建议一个集中的拥挤控制路由协议。让候选人父母在网络建设的过程减少网络拥挤的概率联合一个节点，缓冲区占有率，无线连接质量，和亚节点的当前的数字的剩余精力。另外，当网络拥挤发生时，决定拥挤的节点的亚节点是否需要基于交通分析被交换采用一个集中的方法。理论分析和广泛的模拟结果证明与存在路由协议相比，CCRPM的性能在减少网络拥挤的概率显著地被改进，延长平均网络一生，增加网络产量，并且减少端对端的延期。

简介：Wearabledevicesbecomepopularbecausetheycanhelppeopleobservehealthcondition.Thebatterylifeisthecriticalproblemforwearabledevices.Thenon-volatilememory(NVM)attractsattentioninrecentyearsbecauseofitsfastreadingandwritingspeed,highdensity,persistence,andespeciallylowidlepower.Withitslowidlepowerconsumption,NVMcanbeappliedinwearabledevicestoprolongthebatterylifetimesuchassmartbracelet.However,NVMhashigherwritepowerconsumptionthandynamicrandomaccessmemory(DRAM).Inthispaper,weassumetousehybridrandomaccessmemory(RAM)andNVMarchitectureforthesmartbraceletsystem.Thispaperpresentsadatamanagementalgorithmnamedbraceletpower-awaredatamanagement(BPADM)basedonthearchitecture.TheBPADMcanestimatethepowerconsumptionaccordingtothememoryaccess,suchassamplingrateofdata,andthendeterminethedatashouldbestoredinNVMorDRAMinordertosatisfylowpower.TheexperimentalresultsshowBPADMcanreducepowerconsumptioneffectivelyforbraceletinnormalandsleepingmodes.

简介：Themagneticimprovisedexplosivedevices(IEDs),alsocommonlyknownasatypeofastickybomb,issimplyconstructeddevicesyetverylethal.Thispaperputsforwardtheideaofanelectroniccompassthatiscapableofsensingthechangeofamagneticfieldgeneratedbyamagnetandtranslatingitintointerpretabledata,whichcouldactasthebaseforthefurtherstudiesandassistindevelopingagreenerautomatedsystemfordetectingthisdevice.Theelectroniccompassisspecificallychosenforreducingpowerconsumptionofsystemsinadditiontothefactthatitisavailableatalowcost.

简介：Electricallypumpedhighpowerterahertz(THz)emittersthatoperatedaboveroomtemperatureinapulsemodewerefabricatedfromnitrogen-dopedn-type6H-SiC.Theemissionspectrahadpeakscenteredon5THzand12THz(20meVand50meV)thatwereattributedtoradiativetransitionsofexcitonsboundtonitrogendonorimpurities.Duetotherelativelydeepbindingenergiesofthenitrogendonors,above100meV,andthehighthermalconductivityoftheSiCsubstrates,theTHzoutputpowerandoperatingtemperatureweresignificantlyhigherthanpreviousdopantbasedemitters.Withpeakappliedcurrentsofafewamperes,andatopsurfaceareaof1mm2,thedeviceemittedupto0.5mWatliquidnitrogentemperature(77K),andtensofmicrowattsupto333K.ThisresultisthehighesttemperatureofTHzemissionreportedfromimpuritybasedemitters.

简介：美国RidleyEngineering公吲开发的POWER4—56K一款开关电源设计软件，具有电路元件参数选川、大信号仿真、反馈控制回路设计和小信号分析等功能，使用方便。

简介：Withtheincreaseoftheclockfrequencyandsiliconintegration,powerawarecomputinghasbecomeacriticalconcerninthedesignoftheembeddedprocessorandsystem-on-chip(SoC).Dynamicvoltagescaling(DVS)isaneffectivemethodforlow-powerdesigns.However,traditionalDVSmethodshavetwodeficiencies.First,theyhaveaconservativesafetymarginwhichisnotnecessaryformostofthetime.Second,theyareexclusivelyconcernedwiththecriticalstageandignorethesignificantpotentialfreeslacktimeofthenoncriticalstage.Thesefactorsleadtoalargeamountofpowerwaste.Inthispaper,anovelpipelinestructurewithultra-lowpowerconsumptionisproposed.Itcutsoffthesafetymarginandtakesuseofthenoncriticalstagesatthesametime.Aprototypepipelineisdesignedin0.13mtechnologyandanalyzed.Theresultshowsthatalargeamountofenergycanbesavedbyusingthisstructure.Comparedwiththefixedvoltagecase,50%oftheenergycanbesaved,andwithrespecttothetraditionaladaptivevoltagescalingdesign,37.8%oftheenergycanbesaved.

简介：一面新奇互补金属氧化物半导体atto安培电流镜子(AACM)被建议它到达0.4aA的最小的还报导的当前的范围。这个电路的操作基于来源电压调整而不是有趣地阻止变在那些电路的通常要求的电压的用法的通常使用的门电压调整。建议电路有简单结构禁止消费1.5W的极其低的电源的大薄片区域消费。它因此是为极端低电源的最好的选择低电压(ULPLV)应用。由使用一种很简单的频率赔偿技术，它的带宽被拓宽到15.8kHz。在SMIC(生产国际公司的半导体)的模拟结果有Hspice的0.18m互补金属氧化物半导体技术被介绍表明建议当前的镜子的确认。

简介：WeconsidertheSignal-to-InterferenceplusNoiseRatio(SINR)balancingproblemin-volvingjointbeamfomingandpowerallocationintheCognitiveRadio(CR)network,whereintheSingle-InputMulti-OutputMultipleAccessChannels(SIMO-MAC)areassumed.Subjecttotwosetsofconstraints:theinterferencetemperatureconstraintsofPrimaryUsers(PUs)andthepeakpowerconstraintsofCognitiveUsers(CUs),alow-complexityjointbeamformingandpowerallocationalgo-rithmcalledSemi-DecoupledMulti-ConstraintPowerAllocationwithConstraintsPreselection(SDMCPA-CP)forSINRbalancingisproposed.Comparedwiththeexistingalgorithm,theproposedSDMCPA-CPcanreducethenumberofmatrixinversionsandmatrixeigendecompositionssignifi-cantly,especiallywhenlargenumbersofPUsandCUsareactive,whilestillprovidingtheoptimalbalancedSINRlevelforalltheCUs.

简介：Thebuildingintegratedphotovoltaics(BIPV)applicationisoneofthemainstudytopicsinthesustainablebuildingfield.Inthispaper,thehighcolorrenderingindex(HCRI)-BIPVwindowsystemisdevelopedtobeusedintheindoorenvironmentalcontrol,whosemodulematerialhasappearedtobeeffectiveinimprovingthevisibletransmittanceandreducingtheabsorption.Thispaperdescribestheperformanceofgrid-connectedHCRI-BIPVwindowsystemwith0.75kWpcapacityinstalledinanofficebuildingforanaturalventilationsolution.TheexperimentalresultsindicatethataccumulativepowergenerationoftheHCRI-BIPVwindowsystemis157.60WKhduringthe7-monthexperimentperiod.Forconsiderationofeachevaluatedfactors,theHCRI-BIPVwindowsystemnotonlyoffersthepassiveenergysituationforitspowerloadingbutalsoimprovestheindoorthermalenvironmentbynaturalventilation.

简介：Theevolutionoftheelectronphaseorbitsbasedonthemulti-photonnonlinearComptonscatteringwiththehighpowerlaser-plasmaisdiscussedbyusingKroll-Morton-Rosenbluththeory.Therandomevolutionoftheun-capturedelectronphaseorbitsfromperiodicitytonon-periodicityisfoundaftertheenergyhasbeenexchangedbetweentheelectronandphotons.Withtheincreaseoftheabsorbedphotonnumbernbyanelectron,thisevolutionwillbemoreandmoreintense,whilewhichisrapidlydecreasedwiththeenhancementofthecollisionnon-flexibilityξandtheirinitialspeedsoftheelectronsandphotons,butthisevolutionislowerthanthatinthehighpowerlaserfield.Whentheelectronsarecapturedbythelaserfield,theevolutionisfinished,andtheelectronswillstablytransport,andthephotonsdon'tprovidetheenergyfortheseelectronsanymore.

简介：在这份报纸，在直角的频率部门multiplexing(OFDM)上的双向中继的一种网络情形被考虑，在哪个二个节点打算经由使用物理层的网络编码的一个继电器(PLNC)交换信息。假设完整的隧道知识是可得到的，一个优化问题，在和力量限制下面最大化可完成的和率，被调查。优化问题是非凸的，这被显示出，它是困难的以计算复杂性发现全球最佳答案。在后果，一个低复杂性的最佳的力量分配计划为实践实现被建议。一张连接能力图首先在每副载波上为力量分配被采用。随后，放松的优化问题和Karush-Kuhn-Tucker(KKT)调节的等价物在每副载波之中为力量分配被开发。模拟结果证明实质的能力获得被与一个低复杂性的计算努力高效地实现建议计划完成。