学科分类
/ 3
49 个结果
  • 简介:

  • 标签:
  • 简介:Theprojectofmeetingsummerpeakof2004inChongqingPowerGridwithaninvestmentaround500millionyuanstartedinApril.Inthemeantime,ChongqingPowerCompanywillstrengthenDemandSideManagementtoalleviatethetensepowersupplysituation.

  • 标签: 重庆 电力网 发展计划 2004年
  • 简介:Wearingaheavyovercoat,TangJincheng,amanalwaysbusyasdirec-torofacoachstationinHangzhouCity,eastChina,wasevenbusierduringtheSpringFestivalwhenmigrantworkersandstudentsleftforfamilyreunions.For2009,theannual'peakofSpringFestivaltravels'began

  • 标签: 西游记 峰值 春运 关怀 春节期间 杭州市
  • 简介:ApeaknormisdefinedforLpspacesofE-valuedBochnerintegrablefunctions,whereEisaBanachspace,andbestapproximationsfromasuntoelementsofthespacearecharacterized.Applicationsaregiventosomefamiliesofsimultaneousbestapproximationproblems.

  • 标签: 万州
  • 简介:ThegovernmentinShigatseprefecturehasfirmlycarriedforwardscientificdevelopmentview,andcalledforfurtherinnovationinthoughtandmethods.Thegovernmentsatalllevelsmaketheirdecisionsinaccordancewithlocalcondition.Theyhavefocusedonincreasingincomesofruralandnomadichouseholdsinthisregion.PeopleinShigatsehaveenjoyedcontinuousincomeincrease,resultingfromtheirtransformationfromtraditionalagriculturetomodernagriculture.

  • 标签: 西藏 农村 农民收入 农业生产
  • 简介:下游的移动与暴风雨长度袭击的假设不到分水岭长度(Ls/L<1.0)放大在以前的研究由运动学波浪的模型显示了的山峰分泌物在无尺寸的山峰分泌物和无尺寸的暴风雨速度的分析被评估。在UrbanaChampaign在伊利诺大学在分水岭试验系统(WES)为一个塑造V的分水岭收集的以前未出版的试验性的数据,与一个运动学波浪的模型的模拟结果比较被使用。与L山峰与静止暴风雨相比解除到有限程度的s/L<1.0增加,和运动学波浪的模型说大话源于下游的移动的山峰流动的增加与Ls/L<1.0。为了评估回水的重要性,在试验性的分水岭完成,为源于在上游、下游的动人的暴风雨的表面流量的模拟的运动学波浪、动态波浪的模型的精确性被评估利用一样的试验性的数据。运动学波浪的模型模仿在上游的移动暴风雨相当好,即模型的NashSutcliffe系数分别地为等于、不等于分水岭长度的暴风雨长度适合等于0.948和0.831的效率。而,运动学的波浪模型实质地过高估计下游地移动暴风雨,和收益的山峰分泌物通常更差比为在上游的动人的暴风雨适合,即为有等于、不等于分水岭长度的长度的暴风雨的NSE平等者到0.867和0.674分别地。动态波浪的模型模仿下游的移动暴风雨相当好,即为有等于、不等于分水岭长度的长度的暴风雨的NSE平等者到0.843和0.879分别地,显示回水显著地为甚至这个简单试验性的分水岭影响流量。考虑到那个暴风雨运动实质地没放大山峰分泌物,在标准hydrologic设计做的静止暴风雨的假设似乎合理、足够。

  • 标签: 实验评价 运动波 流量比 风暴 峰值 模型模拟
  • 简介:Foralongtime,aquantitativecalculationofenergyradiatedbyseismicwaveshasbeenanimportantprobleminthebasicstudyofseismology.Uptonowthewell-knownrelationshipoflgE=l.5MS+11.8createdbyGutenbergandRichter(1956)hasstillbeenabetterexperientialstatisticalrelationforestimatingtheenergyofseismicwaves.Sincethecreationofseismicdislocationmodelinthe1960s,seismologistshavestudiedaquantitativecalculationofenergyradiatedbyseismicwaves.Forexample,Haskell(1964),VassilionandKanamori(1982),CHENandDuda(1993b)haveacquiredmanycreativeresults.Especiallysincethe1980s,digitalseismometerswithlargedynamicrange,widebandandhighprecisionusedinseismicmonitoringandusageofprocessingtechnologyofdigitalcomputerhavegreatlyexploitedthestudyfieldofmoderndigitalseismology.OnthebasisofseismicdislocationmodeldevelopedbyBrune(1970),anewseismicwaveradiatedenergyrelationdependedonseismicmoment,ambientstress(0andpeakgroundmovementhasbeenestablished.DataobservedbymobiledigitalseismometerintheYao(anM=6.5earthquakeonJanuary15,2000anditsaftershocksequenceareusedtoestimateseismicradiatedenergy.Furthermore,wealsodiscusstheambientstress(0andcharacteristicsofenergyattenuationfortheaftershocksequence.

  • 标签: digital SEISMOLOGY SEISMIC energy AMBIENT stress
  • 简介:BackgroundThe效果喻摧毁山峰上的灵活性喻摧毁直到现在,在疾跑的肌肉紧张仍然保持未知,它限制了我们风险因素的理解喻摧毁肌肉紧张损害(喻摧毁损害)。作为我们的以前的学习的继续,这研究被瞄准检验在之间的关系喻摧毁灵活性和山峰喻摧毁在男性的sprinting.MethodsTen和10个女大学生的肌肉紧张参予了这研究。喻摧毁灵活性,isokinetic力量数据,三维(3D)在hamstringisokinetic测试的运动学的数据,和在疾跑的测试的运动学的数据为每个参加者被收集。最佳喻摧毁肌肉长度和山峰喻摧毁在疾跑的肌肉紧张为每3biarticulated的每participant.ResultsThe肌肉紧张被决定喻摧毁肌肉在迟了的秋千阶段期间到达了一座山峰。山峰喻摧毁肌肉紧张否定地被相关喻摧毁灵活性(0.1179R20.4519,p=0.001)然而并非到臀部和膝关节,位置在山峰的时候喻摧毁肌肉紧张。山峰喻摧毁肌肉紧张不为不同的性是不同的。二头肌的山峰肌肉紧张长出发(0.071敢睴敥?敧摮牥吗?

  • 标签: 喻摧毁灵活性 喻摧毁肌肉紧张损害 损害风险因素 肌肉 biomechanics 肌肉紧张 肌肉紧张损害
  • 简介:盆区域是平均数和山峰流速及流水量上的主要控制,但是关系与地区性的气象学的条件变化。富有的历史的数据集合为美国的大多数区域允许这些关系的推理,揭示期望并且意外关联。在木头木头阴谋上,为大多数盆意味着流动与>75cm/y降雨有单位斜坡,与接近的y拦截吝啬的年度流量。更低的斜坡描绘流量在高地志的举起是最大的区域,否则为灌溉的重要退却在在哪儿发生,降低举起。山峰流动也与盆区域强烈相关,但是为大多数区域的回归有从0.4~0.9的斜坡,和与增加增加的y拦截泛滥复发间隔。为山峰流动的这些木头木头阴谋上的斜坡在有低阳光和低土壤水分蒸发蒸腾损失总量的凉爽的区域是最高的,并且最低在阳光是丰富的的地方,土壤水分蒸发蒸腾损失总量高、小对流暴风雨房间是普通的。地势的效果小、不一致。小分水岭的山峰流动与他们的吝啬的流动相比是巨大的,通常大几千倍,特别地在为山峰流动的斜坡是低的美国midcontinent。

  • 标签: 洪峰流量 平均流量 流域面积 美国 峰值 高海拔地区
  • 简介:Anewcycle-by-cyclecontrolflybackconverterwithprimarysidedetectionandpeakcurrentmodecontrolisproposedanditsdynamiccharacteristicsareanalyzed.TheflybackconverterisverifiedbytheOrCADsimulator.Themainadvantagesofthisconverterovertheconventionalonearesimplicity,smallsize,rapidregulatingandnosensingcontrolsignalsovertheisolationbarrier.Thecircuitissuitablefordigitalcontrolimplementations.

  • 标签: 逆向变换器 峰值电流 初级检波 数字控制
  • 简介:BasedontheEigenandCrow-Kimuramodelswithasingle-peakfitnesslandscape,weproposethefitnessvaluesofallsequencetypestobeGaussiandistributedrandomvariablestoincorporatetheeffectsofthefluctuationsofthefitnesslandscapes(noiseofenvironments)andinvestigatetheconcentrationdistributionanderrorthresholdofquasispeciesbyperforminganensembleaveragewithinthistheoreticalframework.Wefindthatasmallfluctuationofthefitnesslandscapecausesonlyaslightchangeintheconcentrationdistributionanderrorthreshold,whichimpliesthattheerrorthresholdisstableagainstsmallperturbations.However,forasizablefluctuation,quitedifferentfromthepreviousdeterministicmodels,ourstatisticalresultsshowthatthetransitionfromquasi-speciestoerrorcatastropheisnotsosharp,indicatingthattheerrorthresholdislocatedwithinacertainrangeandhasashifttowardalargervalue.Ourresultsarequalitativelyinagreementwiththeexperimentaldataandprovideanewimplicationforantiviralstrategies.

  • 标签: 误差极限 高斯分布式随机变量 原子物理学 原子结构
  • 简介:一曲动人的《美丽的亚美利加》给我们带到了美国雄伟壮丽的落基山脉,那里的一座海拔4300米气势奇特的山峰,它就是冬天里山上雪花纷飞,峰顶白雪皑皑的“美丽之山”——派克峰。

  • 标签:
  • 简介:基于长时期的纤维栅栏(LPFG)的双山峰回声,一个新奇电影传感器被介绍,在哪个对包围气体敏感的电影在反响的波长与这部电影改变的双山峰的纤维栅栏区域,和间隔的cladding上是涂的折射索引。根据夫妇模式理论,一个三元组穿着的数字模型被开发分析在敏感Sn和薄电影之间的关系光参数(电影厚度h3并且折射索引n3)并且纤维栅栏参数(栅栏时期螞和核心索引调整蟽)。由使用优化方法,最佳的电影光参数和栅栏结构参数被获得。到这些电影的折射索引的这个计划的敏感被预言到的数字模拟表演是超过10?7。理论上的分析为实际高度敏感的电影传感器提供直接基础。

  • 标签: 纤维光栅 薄膜 敏感器 共振
  • 简介:[摘要]Peak lopping的故障代码一般指向牵引-电机-制动的配合问题,涉及电气器件较多,故障原因具有多样性,需要逐步排查。

  • 标签: []Peak lopping 牵引逆变器 故障数据
  • 简介:EstablishingpositiveandurgenttargetsforCO2reductionandemissionpeak,andpromotingenergyconservationandenergystructureadjustmentareamongthestrategiestoaddressglobalclimatechangeandCO2emissionsreduction.Theyarealsomeanstobreakthroughtheconstraintsofdomesticresourcesandenvironment,andinternalneeds,toachievesustainabledevelopment.Generallyspeaking,acountry’sCO2emissionpeakappearsafterachievingurbanizationandindustrialization.Bythen,connotativeeconomicgrowthwillappear,GDPwillgrowslowly,energyconsumptionelasticitywilldecrease,andenergyconsumptiongrowthwillslowdown-dependentmainlyonnewandrenewableenergies.Fossilfuelconsumptionwillnotincreasefurther.WhenCO2emissionreachesitspeak,theannualreductionrateofCO2intensityofGDPisgreaterthanGDPannualgrowthrate;andtheannualreductionrateofCO2intensityofenergyuseisgreaterthantheannualgrowthrateofenergyconsumption.Therefore,threeimportantapproachestopromotionofCO2emissionpeakcanbeconcluded:maintainingreasonablecontrolofGDPgrowth,strengtheningenergyconservationtosignificantlyreducetheGDPenergyintensity,andoptimizingtheenergymixtoreducetheCO2intensityofenergyuse.Byaround2030,Chinawillbasicallyhavecompleteditsrapiddevelopmentphaseofindustrializationandurbanization.ConnotativeeconomicgrowthwillappearwiththeaccelerationofindustrialstructureadjustmentThetargetofGDPenergyintensitywillstillbetomaintainanaverageannualreductionof3%orhigher.Theproportionofnon-fossilfuelswillreach20-25%,andtheaimwillbetomaintainanaverageannualgrowthrateof6-8%.Thetotalannualenergydemandgrowthof1.5%willbesatisfiedbythenewlyincreasedsupplyofnon-fossilfuels.TheannualdeclineinCO2intensityofGDPwillreach4.5%orhigher,whichiscompatiblewithanaverageannualGDPgrowth

  • 标签: CO2 emission PEAK ADDRESSING CLIMATE change
  • 简介:AfastMUltipleSIgnalClassification(MUSIC)spectrumpeaksearchalgorithmisdevised,whichregardsthepoweroftheMUSICspectrumfunctionastargetdistributionuptoaconstantofproportionality,andusesMetropolis-Hastings(MH)sampler,oneofthemostpopularMarkovChainMonteCarlo(MCMC)techniques,tosamplefromit.TheproposedmethodreducesgreatlythetremendouscomputationandstoragecostsinconventionalMUSICtechniquesi.e.,abouttwoandfourordersofmagnitudeincomputationandstoragecostsundertheconditionsoftheexperimentinthepaperrespectively.

  • 标签: 快速多信号分类 MUSIC 光谱 搜索算法 MARKOV链