简介:SodiumdithioniteinitiatedsulfinatodehalogenationofBrCF2CF2Risstudied.
简介:Thecanonicalandlocatizedmolecutarorbitersof[NCCuS2NoS2]2-clusterwerecalculatedbymeansofCNDOquantumchemistrymethod.Thentheenergyandpropertiesofcorrespondingchemicatbondswerediscussed,especially,Cu-Sb-NothreecenterconjugatedπbondsandNo-St-Noconjugatedπbondswereaccountedfor.
简介:利用TCAD仿真技术,研究了电离总剂量辐射陷阱电荷对0.18μmN沟道MOSFET转移特性的影响.构建了0.18μmN沟道MOSFET的三维仿真结构,获得了在电离总剂量(totalionizingdose,TID)效应影响下,负栅压偏置时器件中电流密度的分布情况.分析了器件浅槽隔离层(shallowtrenchisolation,STI)中氧化物陷阱电荷和界面态陷阱电荷对器件泄漏电流的影响.仿真计算了N-MOSFET的转移特性,仿真结果与辐照试验结果受辐照影响的趋势基本一致,为深亚微米MOS器件的总剂量辐射效应的损伤机制提供了一种分析手段.
简介:Wepresenta940nmquasi-continuouswavesemiconductorlaserdesignedasabuildingblockforhigh-powerfibercoupledpumpmodules.Thelasercomprisesa400μmnarrow-stripearraymountedonanaluminumnitridesubstrateusinghardsolder.Thechiphasbeenoptimizedforhighopticalpowerandlowlateralfar-fieldangles.Twoverticalandsixlateralstructurevariationshavebeeninvestigatedtodeterminethebestachievableperformance.Operatingat1mspulsewidthandarepetitionrateof10Hz,thelaserdevicereachesamaximumpulsepowerof86Wfroma400μmapertureandmorethan62%maximumconversionefficiency.Lowlateralfar-fieldangles(95%powerenclosed)of11.5and13.5,dependingontheepitaxialdesign,enableefficientmultimodefibercoupling.Thepotentialforhighlyreliableapplicationshasbeendemonstrated.
简介:在这个工作我们在场关于借助于在与形状保存有关的假设下面的一个线性操作符的一个函数的k-th衍生物的近似的结果性质。作为后果,我们关于Meyer-K推出新结果?nig和Zeller操作员。
简介:BystudyingthespectralpropertiesoftheunderlyingoperatorcorrespondingtotheM/G/1queueingmodelwithoptionalsecondserviceweobtainthatthetime-dependentsolutionofthemodelstronglyconvergestoitssteady-statesolution.Wealsoshowthatthetime-dependentqueueingsizeatthedeparturepointconvergestothecorrespondingsteadystatequeueingsizeatthedeparturepoint.
简介:Aneight-shotspelletinjection(PI)andasupersonicmolecularbeaminjection(SMBI)systemhaveproposedanddevelopedontheHL-1Mtokamakforadvancedfuellingexperiments.ThepeakeddensityprofileandimprovedconfinementaretypicalfeatureofPIandSMBIdischarge.ItstronglydependsonthewallrecyclingconditionsoftheHL-1Mtokamakandinjectionparameters.
简介:IntheHL-1Mplasmaexperiments,tworefuelingways,thepelletinjectionandthegaspuffing,areusuallyused.Inrecentyears,anewrefuelingmethod,thesupersonicmoleculebeam(SMB)injection,hasbeendeveloped.SMBinjectionisanattempttoenhancethepenetrationdepthandthefuellingefficiencyofgas,aswellastoreducesurfaceabsorptionoftheinjectedparticlesandtheimpuritycontentintheplasma.InSMBinjectionexperiments,thegasisinjectedintotheplasmathroughaLavalnozzleathighgaspressure.Inthiscase,thepeakdensityandimprovingconfinementhavebeenachievedasinthecaseofapelletinjection.
简介:Inthispaper,weconsideraLorentzspacewithamixednormofperiodicfunctionsofmanyvariables.WeobtaintheexactestimationofthebestM-termapproximationsofNikol'skii'sandBesov'sclassesintheLorentzspacewiththemixednorm.