学科分类
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145 个结果
  • 简介:从1951~2011在东廷·莱克分水岭基于地调查水文学系列,lakebed沉积siltation/erosion(证券交易所)的变化在三座峡水库(TGR)的操作以后的东廷·莱克的政体被分析。显著地积极的关联从Zhicheng和三个插头在流动率之间被发现(r2=0.859,p<0.0001),并且在流动之间,率和沉积交货在三个插头评价(r2=0.895,p<0.0001)。这显示在三个插头的流动率和沉积交货率被流动率大部分从在上游的长江决定。在东廷·莱克盆的沉积免职数量从+4796.4落下??h

  • 标签: 洞庭湖流域 淤积泥沙 水库运行 三峡库区 侵蚀 湖底
  • 简介:Towardstheanalysisofthedevelopmentalsituationofwindpowergenerationandelectricvehicles,anovelideaforstabilizingthefluctuationofwindfarms’outputbytheuseofbatteryswappingstationsofelectricvehiclesisputforwardinthispaper,toeffectivelyalleviatetheimpactofgrid-connectedoperationofwindfarmsonthepowersystemwhilepromotingthefieldoperationofchargingandbatteryswappingstations.Abatteryswappingstationistreatedasacapacity-variableenergystoragepowerstation,connectedtotheoutputterminalofawindfarm.AcombinedoperationmodelforwindfarmandbatteryswappingstationisestablishedbasedontheMATLAB/SIMULINKsimulationplatformandthecontrolstrategyisproposedfortheoperationofbatteryswappingstations.Thesimulationresultsshowthattheintroductionofabatteryswappingstationcaneffectivelystabilizethefluctuationofwindfarmoutput.

  • 标签: 电动汽车电池 风电场 联合作战 SIMULINK MATLAB 操作模式
  • 简介:Thefeasibilityoffenestrationoperationinmiddleearbonewithpulsedinfraredlaserisevaluated.HealthymaleNewZealandrabbitsinvivoareusedintheexperiment.Middleearmastoidboneofanimalmodeliscompletelyexposedwithconventionalmethods,andthenapulsedCO2laser(10.6μm)andanEr:YAGlaser(2.94μm)areusedtoperformthefenestrationoperation.Diamonddrillisalsousedasacontrolgroup.Thetotaloperationtimeandlightirradiationtimearerecordedandtheopeningefficiencyisassessed.Themorphologicalchangesandthermaldamagearoundtheopeningwindowonthemiddleearboneareexamined.Itisshownthatbothlasersystemsaresuitableforthefenestrationoperationinmiddleearbone,andthisno-touchtechniquehasalotofbenefitscomparedwithtraditionalmethods.Thebleedingduringoperationhasanimportanteffectonoperationtimeandthermalinjuryandneedstobecontrolledefficientlyinfurtherstudy.更多还原

  • 标签: 红外激光脉冲 中耳 开窗 体内 光照时间 传统方法
  • 简介:LongtanHydropowerStationislocatedinGuangxiZhuangAutonomousRegionontheupperreachoftheHongshuiRiver,whichisthekeyandlandmarkproject

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  • 简介:TheThreeGorgesProject(TGP)isaworldknownprojecttoutilizeandmanagethewaterresourcesoftheYangtzeRiver.Thereservoirstoreswaterattheendofthefloodseason,andreplenishesdownstreamreacheswithwaterindryseasons.Inadditiontosuchbenefits,theTGPhasirreversiblychangedthehydrologicalprocessandtheriver-lakerelationofthemiddleandlowerreaches.Inthispaper,ahydrodynamicmodelwasestablishedtoquantifytheimpactoftheTGP'soperationonthewaterexchangebetweenDongtingLakeandtheYangtzeRiverduring2009–2013.Theresultsindicatedthat:theoperationoftheTGPhasconsiderablyreducedthepeakdischargeandthefloodvolumeofthemainstreamandtheDongtingLakearea.TheinflowvolumefromtheYangtzeRivertoDongtingLakeviathreeoutletsdecreasedby1.9–3.5billionm3/yr,whiletheoutflowvolumefromDongtingLaketotheYangtzeRiveratChenglingjiincreasedby0.3–1.6billionm3inSeptemberand0.4–0.6billionm3inOctober,respectively.Thisresearchprovidesvaluableinformationforfloodcontrol,irrigation,andwaterallocationinthemiddleandlowerreachesoftheYangtzeRiver,andservesasatypicalcaseforinvestigatingtheimpactofotherhydropowerprojectsaroundtheworld.&2017InternationalResearchandTrainingCentreonErosionandSedimentation/theWorldAssociationforSedimentationandErosionResearch.PublishedbyElsevierB.V.Allrightsreserved.

  • 标签: THREE Gorges Project YANGTZE River Dongting
  • 简介:Since2010,ShandongWomen’sUniversity,asthethirdundergraduatecollegesforfemaleinChinaandfirstinShandongProvince,incumbentlyundertookthemissionofexploringuniquelawforinnovativeandentrepreneurialeducationoffemalecollegestudents,constructedandimplemented“five-oriented”cultivationmodesforinnovativeandentrepreneurialqualityoffemalecollegestudentsbasedonthetheoriesofQualityEducationTheory,EntrepreneurialEcologyTheory,EducationalEngineeringTheory,GenderDifferencesTheory,andDifferentiatedTeachingTheory.Thefirstis“Generalization-Oriented”CultivationObjective,havingestablishedtheinnovativeandentrepreneurialgoalsforfemalecollegestudentsinsixdimensionsincludingconsciousness,thinking,spirit,knowledge,ability,andpersonality.Thesecondis“Integralization-Oriented”CultivationChannel,havingfoundedandintensifiedthecollaborationandlinkageamongchannelslikefirstclassroom,secondclassroom,andplatformonandoffcampus.Thethirdis“Collaboration-Oriented”CultivationMeasures,havingfoundedandintensifiedthematchingandcoordinationamongsystem,mechanism,teachers,resource,andothermeasures.Thefourthis“Circulation-Oriented”CultivationProcess,arrangingandintensifyingstepslikeinvestigationandresearch,designandplan,actionandsupervision,andconcludingandevaluationorderlyoperating,formingclosed-circuitandadvanceincirculation.Thefifthis“Differentiation-Oriented”CultivationMethods.Thismodehasefficientlysolvedtheproblems,likeunclearpurpose,unknowndirection,incompletedistributionandscatteredforces,insufficientconditionsandinefficientmeasures,poorarrangementandflow,neglectingdifferencesandnotfineenough,existingintheinnovativeandentrepreneurialeducationforfemalecollegestudents,whichmadetheirinnovativeandentrepreneurialqualitiesgreatlypromotedandenthusiasmandefficiencytoparticipateintheinnovativeandentrepreneurialactivitiesenhanced.

  • 标签: ENTREPRENEURIAL education ENTREPRENEURIAL QUALITY INNOVATIVE QUALITY
  • 简介:摘要:通过分析供水管网水质及存在的问题,提出了一些提高管网管理水平的方法和建议,以达到促进供水服务水平全面提升、保证水行业的健康发展目的。

  • 标签: 管网水质 调查分析
  • 简介:APlasmaSurfaceInteraction(PSI)experimentonChinaLowActivationMarten-sitic(CLAM)steelwasdonetocheckifCLAMsteelcouldbeusedasaPlasmaFacingMaterial(PFM).Aspecimenwithadiameterof45mmwasexposedto897shotsofdeuteriumplasmaswithatotaldurationof712secataminorradiusof30cminHT-7tokamak.Duringtheexpo-sureexperiment,noobservableinfluencewasfoundonplasmaperformance.Afterexposure,thesurfaceofthespecimenseemedassmoothasbeforebutwithsomecolourchangeatthemarginofthespecimen.Eventhoughsomemicro-damage,suchasdenseblisters,melting,splashing,depositions,anddust,wasfoundonlocalsurfaceswithScanningElectronMicroscopic(SEM)observation.Thereflectivityofthespecimendecreasedonlyslightly.AlloftheseshowsCLAMsteelhasgoodstabilityandirradiationresistance.Withfurtheroptimization,itcouldpossiblybeusedasthefirstmirrormaterialforplasmadiagnosticsintokamaks.

  • 标签: 中国低活氏体钢 等离子体面材料 等离子界面互作用 高参数运作
  • 简介:Unlikeatraditionalfiberlaserwithadefinedresonantcavity,arandomfiberlaser(RFL),whoseoperationisbasedondistributedfeedbackandgainviaRayleighscattering(RS)andstimulatedRamanscatteringinalongpassivefiber,hasfundamentalscientificchallengesinpulsingoperationforitsremarkablecavity-freefeature.Forthetimebeing,stablepulsedRFLutilizingapassivemethodhasnotbeenreported.Here,weproposeandexperimentallyrealizethepassivespatiotemporalgain-modulation-inducedstablepulsingoperationofcounterpumpedRFL.Thankstothegoodtemporalstabilityofanemployedpumpingamplifiedspontaneousemissionsourceandthesuperiorityofthispulsegenerationscheme,astableandregularpulsetraincanbeobtained.Furthermore,thepumphysteresisandbistabilityphenomenawiththegenerationofhigh-orderStokeslightispresented,andthedynamicsofpulsingoperationisdiscussedafterthetheoreticalinvestigationofthecounterpumpedRFL.ThisworkextendsourcomprehensionoftemporalpropertyofRFLandpavesaneffectivenovelavenuefortheexplorationofpulsedRFLwithstructuralsimplicity,lowcost,andstableoutput.

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  • 简介:WefallintodisusetheJUHUsystembasedonthePDP/11computerforRSX11Moperationsystem,andupdateourmulti-parameterdataaequisitionandanalysissystem’shardwareandsoftwarebasedonVAXIIcomputerandOpenVMSoperationsystem,makeitadaptedtotherecentphysicsexperiment.Inthispaper,wedescribetheupdatedinulti-parameterdataacquisitionandanalysissystem’shardware,softwareconfigurationandsystemfunction.

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  • 简介:OnOctober8,2018,theHualuHengshengChemicalStockCo.,Ltd.(HHCSC)inShandongmadeanannouncementthatallfacilitiesofits0.5Mt/aethyleneglycolunithadbeenoperatingsmoothlyat70%offullload,whilecrankingoutqualityproduct(withthepremiumqualitycomplianceratereaching100%)tosymbolizethattheunitwasenteringatrialproductionstage.

  • 标签: Hualu Hengsheng SHANDONG MADE COMPLIANCE
  • 简介:与哈尔滨Devi自动化设备发展公司合作的Daqing石油化学的同伴的号码2化学植物,有限公司在butanol/octanol单位的含氧合成的反应堆采用了没有模型的控制系统完全在一次尝试在反应堆解决对CO集中的稳定的控制的问题在与反应化工物品的关系在含氧合成的反应堆优化反应条件,导致反应尾巴气体的分泌物和丙烯的减少的单位消费的重要减小。

  • 标签: 丁醇 辛醇 大庆石化公司 企业管理
  • 简介:Objective:ToinvestigatewhetherGli1expressionisimportantinrelapseafterradicaloperationofbreastcancer.Methods:Usingimmunohistochemistry,Gli1expressionwasanalyzedinhumanprimarybreastcancer(n=284)andparacanceroustissues(n=20),andalsoinlocallymphnodes(n=28)andmetastaticlymphnodes(n=28).Results:InitialanalysisofGli1expressioninasmallcohortof20breasttumorsandtheirparacanceroustissuesshowedatendencytowardsGli1overexpressioninbreastcancertissues(P<0.001).Further,Gli1expressionin284breastcancertissuesampleswasanalyzedandasignificantcorrelationwasfoundbetweenincreasedexpressionofnuclearGli1andunfavorablerecurrence-freesurvival(RFS)(P<0.05).ThenuclearexpressionofGli1inmetastaticlymphnodesfollowingrelapseafterradicaloperationwasmuchhigherthanthatinthelocallymphnodesofprimarycarcinoma(P<0.05).Mostinterestingly,theexpressionofGli1wasmuchhigherintheinterstitialtissuesoftherelapsedgroupthanofthenon-relapsedgroup(P<0.001).Conclusions:BreastcancershowsahighprevalenceofGli1expression,whichissignificantlycorrelatedwithaggressivefeaturesandunfavorableRFS.NuclearGli1overexpression,especiallyintheinterstitialtissues,signifiedearlyrelapseafterradicaloperationofbreastcancer.

  • 标签: 手术切除 乳腺癌 过度表达 复发 辅助治疗 早期
  • 简介:Inthispaperthecomplexstructureandpatternofshipsternflowdrivenbymulti-propellersissimulatednumericallybyusingRANSequationswithK-εturbulencemodelandpropellerliftingsurfacetheoryasessentialresearchtoolandcouplingthecomputercodeofshipsternflowtothecomputercodeofpropellerperformancepredictionthroughthemediumofbodyforce.Ashipmodelwithfourpropellersisselectedasthenumericalexample.Detailedcomputationalresultsarepresentedgraphicallyandthequalitativeandquantitativeanalysisismade.Finally,thecomparisonbetweenthecalculatedresultandtheavailableexperimentaldataismade.Theagreementbetweenthemissatisfactory.

  • 标签: SHIP STERN FLOW hull-propeller interaction BODY
  • 简介:1GeneraldescriptionLuohuangpowerplantislocated25kmnortheastofChongqingcity,Sichuan,jointlyownedbyHuanengInternationalPowerDevelopmentCompany(HIPDC)andChongqingMunicipal-ityGovernment.Two360MWcoalfiredunitscompletewithFGDsystem,startedconstructioninSeptember1988,werefirstsyn-chronizedinJuneandDecember1991,andunderwentfullloadtestsinSeptember1991andMarch1992respectively.SincethentheunitshavebeenplayingavitalroleincontributingtothepowersupplyofSichuanandChongqing.SouthwestElectricPowerDesignInstituteundertookthe

  • 标签: Chongqing OWNED jointly NORTHEAST steam VITAL
  • 简介:Demandresponse(DR)isgainingmoreandmoreimportanceinthearchitectureofpowersystemsinacontextofflexibleloadsandhighshareofintermittentgeneration.ChangesinelectricitymarketsregulationinseveralcountrieshaverecentlyenabledaneffectiveintegrationofDRmechanismsinpowersystems.Throughitsflexiblecomponents(pumps,tanks),drinkingwatersystemsaresuitablecandidatesforenergy-efficientDRmechanisms.However,thesesystemsareoftenmanagedindependentlyofpowersystemoperationforbotheconomicandoperationalreasons.Indeed,asufficientlevelofeconomicviabilityandwaterdemandsriskmanagementarenecessaryforwaterutilitiestointegratetheirflexibilitiestopowersystemoperation.Inthispaper,weproposedamathematicalmodelforoptimizingpumpschedulesinwatersystemswhiletradingDRblocsinaspotpowermarketduringpeaktimes.Uncertaintiesaboutwaterdemandswereconsideredinthemathematicalmodelallowingtoproposepowerreductionscoveringthepotentialriskofreal-timewaterdemandforecastinginaccuracy.NumericalresultswerediscussedonarealwatersysteminFrance,demonstratingbotheconomicandecologicalbenefits.

  • 标签: DEMAND response (DR) DRINKING water systems