简介：OnMay1st,ChinaNationalNuclearCorporation(CNNC)announcedinBeijingthatunit1andunit2ofTianwanNuclearPowerPlantcooperativelyconstructedbyChinaandRussiahavecompletedinsuccessionthefirstfuelcycleoperationcontinuouslyandsafely.Itisthe

简介：Inthispaper,theproblemofParameterestimationinlineardelayedsystemsfromsampleddataistreated.Usingnumericalintegraloperation(NIO),anidentificationmodelwhichisparametrizeddirectlyinthelineardelayedsystempa-rametersisgot.Withtheleastsquare(LS)methodortheinstrumentalvariable(Ⅳ)method,therecursivealgorithmofparameterestimationisgiven.Theresultoftheillustratedexampleshowsthatthisalgorithmissimple,rapidandaccurrate.

简介：Anairsourceheatpumpsystem(ASHPS)usedinanofficebuildingissetupandstudiedexperimentally.Itsoperatingperformanceinwinterisevaluatedbasedontestdataandacomparativediscussionisgivenontheeffectofclimateconditionsandheatingloadratioontheoperationbehavior.Thenheatingcapacityvariationcausedbyevaporatorfrostingisanalyzedaswell.Finally,thedefrostingparametersandthetechnicalfeasibilityarestudiedforaconstantheatingdemand.TheexperimentalresultsindicatethatboththeoutletwatertemperaturedropandthesystemCOPshouldbetakenintoaccountwhensettingdefrostingparameters,andASHPSisaviabletechnologyforspaceheatingandhot-waterproductioninwinterinTianjin,whichcanmaintaintheroomtemperatureabove19℃whentheoutdoortemperatureis-2℃.

简介：用极化的做镱的锁模式的纤维激光敏感隔离乾和极化控制器(PC)被报导。在正常分散，纤维激光能由调整PC的位置以多脉搏状态震荡。在极化状态isn鈥檛改变了的条件上，从单身者的做镱的锁模式的纤维激光变化的产量由增加泵力量搏动到多脉搏。纤维激光能由小心地调整PC1和PC2完成不同多脉搏输出。CLC数字TN253这个工作被中国(栅栏号码60577019和号码60137010)的国家科学基金支持了。

简介：InordertosolveabottleneckprobleminpowernetworksafetyoperationtheElectrotechnicalResearchInstituteundertheChineseAcademyofSciencehasfinishedadevelopmentworkofprototypehigh-temperaturesuperconductingcurrentlimiterwithindependentintellectualpropertyrightsonthebasisofatheoryadvancedonitsown.Suchalimiterhasovercomedisadvantagesinexistingonesworldwide.

简介：AbstractFractures of the acetabulum in elderly patients were often caused by low energy trauma. Fractures involving anterior column are more common and often associated with impaction and comminution. Osteoporosis further complicates the management. Percutaneous fracture fixation has low morbidity but it is a technically demanding procedure. Open reduction and fracture fixation is done with or without simultaneous total hip replacement. Delayed total hip replacement is considered in posttraumatic arthritis patients. Patients with minimal displaced fractures, associated both-column fractures with secondary congruence of joint and patients who are medically unfit for surgery can be managed non-operatively. Whatever be the method of management, these elderly patients should be mobilised as early as possible.

简介：与多重损伤在病人为错误诊断探索特征，治疗结果和原因的目的，以便减少错误诊断的发生。从1997年8月被同意进入我们的部门到2008年8月的有多重损伤的3163个病人全部的方法A，回顾地被学习比较诊断和治疗的特征。有2117男性(66.93%)，有平均数的1046女性(33.07%)36.46年变老(范围，14-80年)。象一般地位，创伤的条件，诊断和治疗状况，预后和死亡那样的参数被分析。错误诊断组和正确诊断组之间的差别以阐明的损害，复杂并发症和治疗结果的严厉被比较错误诊断的原因和预防。结果在这研究的多重损伤的错误诊断率是16.19%。误诊的主要解剖地点是手足和骨盆(299个位置，39.50%)，腹的区域和骨盆的机关(148个位置，19.55%)，并且胸的区域(109个位置，14.40%)。在错误诊断组，ISS，一些医院停留，知觉的骚乱的率，批评盒子和吃惊，盒子是33.78吗？

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简介：Epithelialovariancancerisprimarilyadiseaseofolderwomen.Advancedageisriskfactorfordecreasedsurvival.Optimalsurgeryandthesafeandeffectiveadministrationofchemotherapyareessentialforprolongedprogression-freeandoverallsurvival(OS).Inthisarticle,theavailableregimensinboththeprimarytreatmentandrelapsedsettingarereviewed.

简介：比较方法和录象带录音机被使用以防为记录二个组操作符的操作表演的学习。时间跨度是7个月，从9月到三月。在9月的操作的表演作为参考书被拿。测试调查和数据分析的结果证明掉落树的手术效率被冷天气影响，适当地减少了18.5%在里面平均。

简介：Byutilizingtotalmagneticfluxφoftheprimaryandsecondarywindingsoftheflybacktransformerasastatevariable,thediscrete-timemodelofcurrent-modecontrolledflybackconverterisestablished,uponwhichthebifurcationbehaviorsoftheconverterareanalyzedandtwoboundaryclassificationequationsoftheorbitstateshiftingareobtained.Theoperation-stateregionsofthecurrent-modecontrolledflybackconverterarewellclassifiedbytwoboundaryclassificationequations.Thetheoreticalanalysisresultsareverifiedbypowerelectronicssimulator(PSIM).Theestimationofoperation-stateregionsfortheflybackconverterisusefulforthedesignofcircuitparameters,stabilitycontrolofchaos,andchaos-basedapplications.

简介：Anexperimentaladvancedsuperconductingtokamak(EAST)operationwindowwiththelowerhybridcurrentdrive(LHCD)inH-modeisestimatedbyusingacore-SOL-divertor(C-S-D)modelvalidatedbythepresentEASTdivertorexperiments.Theoperationwindowconsistsoffourlimitsincludingtwousuallimits,oneofwhichisthemaximumallowableheatloadontothedivertorplate,andtwoadditionallimitsassociatedwiththeLHCD.ThepredictiveEASToperationwindowisnotqualifiedtofulfillitsmissionforhighinputpower.Toextendtheoperationwindow,gaspuffingandimpurityseedingarepresentedastwoeffectivemethods.Inaddition,theeffectoftheLHCDcurrentontheoperationwindowisalsodiscussed.OurnumericalanalysisresultsprovideareferenceforthesafeoperationofEASTexperimentswithLHCDinfuture.

简介：Sinomagneticstechnologyisahigh-techenterprisespecializinginR&Dandproductionofrareearthpermanentmagnetmaterials.Itisreportedthattheenterprisehasacceleratedtheconstructionofannual3000tonsofhighperformancesinteredNdFeBproductionbase,andtheconstructionofthebasehasbeencompletedandputintouse.

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简介：Intheconsiderationoftheestablishmentofanewtypeofbigpowerrelationshipandtheprinciplesoftheinternationalnetwork,bothChinaandtheU.S.shouldstrengthentheirgovernmentalandciviliandialogues,promotebilateralco-operationonthefightagainstcybercrimeandthegovernanceofInternet,andhavemoremutualunderstandingandagreementontheissueofcyberarmscontrolsandcybersovereignty.

简介：Anaccurateandcompletegeometricmodelwasconstructedtosimulatethecombustion,flowandtemperatureenvironmentintheradiantsectionofthesteamcrackingfurnace.Simulationofflowandradiationstatushasutilizedthestandardk-εmodelandP1model.Thefinite-rate/eddy-dissipation(finite-rate/ED)combustionmodelandnon-premixedcombustionmodelwerebothusedtosimulateaccuratelythecombustionandtheoperationstatusofthesteamcrackingfurnace.Threedifferentsurfacesofthesteamcrackingfurnacewereobtainedfromthesimulation,namely:thefluegastemperaturefieldoftheentrancesurfaceinlongflameburners,thecentralsurfacelocationoftubes,andthecrossoversectionsurface.Detailedinformationonthefluegastemperatureandthemassconcentrationfractionofthesedifferentsurfacesinthesteamcrackingfurnacecanalsobeobtainedbythesimulation.Thispaperanalyzedandcomparedthesimulationresultswiththetwocombustionmodels,estimatedtheoperationstatusofthesteamcrackingfurnace,andreportedthatthefinite-rate/EDmodelisappropriatetosimulatethesteamcrackingfurnacebycomparingkeysimulationdatawithactualtestdata.Thisworkhasalsoprovidedatheoreticalbasisforsimulatingandoperatingthesteamcrackingfurnace.