简介：纸探讨率方程的明确的表达，经由客观时间衍生物，在连续统物理以内。客观性的概念被考察，区别与其意思相对Galilee的框架被限制为平衡方程的不变性的材料框架不在乎被做。客观时间衍生物被定义离开在欧几里德几何学的框架的集合以内不变的适当的地的张肌特性。率方程被要求包含客观时间衍生物并且与热力学的第二条法律一致。这里，客观时间衍生物的一般结构被建立，物理文学的已知的衍生物被显示是特别盒子。到改正想法，下次，一个率方程与高顺序的坡度经由Maxwell-Cattaneo方程的归纳为热传导的模型被考虑作为在Guyer-Krumhansl方程。热力学的限制被调查，热流动的选择衍生物，期望的效果在压力张肌上被导出。

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简介：Anumberoflaserfacilitiescomingonlineallovertheworldpromisethecapabilityofhigh-powerlaserexperimentswithshotrepetitionratesbetween1and10Hz.Targetavailabilityandtechnicalissuesrelatedtotheinteractionenvironmentcouldbecomeabottleneckfortheexploitationofsuchfacilities.Inthispaper,wereportontargetneedsforthreedifferentclassesofexperiments:dynamiccompressionphysics,electrontransportandisochoricheating,andlaser-drivenparticleandradiationsources.Wealsoreviewsomeofthemostchallengingissuesintargetfabricationandhighrepetitionrateoperation.Finally,wediscusscurrenttargetsupplystrategiesandfutureperspectivestoestablishasustainabletargetprovisioninfrastructureforadvancedlaserfacilities.

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简介：Blindrecognitionofconvolutionalcodesisnotonlyessentialforcognitiveradio,butalsofornon-cooperativecontext.Thispaperisdedicatedtotheblindidentificationofratek/nconvolutionalencodersinanoisycontextbasedonWalsh-Hadamardtransformationandblockmatrix(WHT-BM).Theproposedalgorithmconstructsasystemofnoisylinearequationsandutilizesallitscoefficientstorecoverparitycheckmatrix.Itisabletomakeuseoffault-tolerantfeatureofWHT,thusprovidingmoreaccurateresultsandachievingbettererrorperformanceinhighrawbiterrorrate(BER)regions.Moreover,itismorecomputationallyefficientwiththeuseoftheblockmatrix(BM)method.

简介：Ininertialfusionenergy(IFE)research,aconsiderableattentionhasrecentlybeenfocusedontheissueoflargetargetfabricationforMJ-classlaserfacilities.Theignitionandhigh-gaintargetdesignsrequireacondenseduniformlayerofhydrogenfuelontheinsideofasphericalshell.Inthisreport,wediscussthecurrentstatusandfurthertrendsintheareaofdevelopingthelayeringtechniquesintendedtoproduceignition,andlayeringtechniquesproposedtohighrepetitionrateandmassproductionofIFEtargets.

简介：Thispaperstudiesadynamicmean-varianceportfolioselectionproblemwithrandomliabilityintheaffineinterestrateenvironment,wherethefinancialmarketconsistsofthreeassets:onerisk-freeasset,oneriskyassetandonezero-couponbond.AssumethatshortrateisdrivenbyaffineinterestratemodelandliabilityprocessisdescribedbythedriftedBrownianmotion,inaddition,stockpricedynamicsisaffectedbyinterestratedynamics.Theinvestorsexpecttolookforanoptimalstrategytominimizethevarianceoftheterminalsurplusforagivenexpectedterminalsurplus.TheefficientstrategyandtheefficientfrontierareexplicitlyobtainedbyapplyingdynamicprogrammingprincipleandLagrangedualitytheorem.Anumericalexampleisgiventoillustrateourresultsandsomeeconomicimplicationsareanalyzed.

简介：Transientratedeclinecurveanalysisforconstantpressureproductionispresentedinthispaperforanaturallyfracturedreservoir.Thisapproachisbasedonexponentialandconstantbottom-holepressuresolution.Basedonthismethod,whenln(flowrate)isplottedversustime,twostraightlinesareobtainedwhichcanbeusedforestimatingdifferentparametersofanaturallyfracturedreservoir.Parameterssuchasstoragecapacityratio(ω),reservoirdrainagearea(A),reservoirshapefactor(C_A),fracturepermeability(k_f),interporosityflowparameter(λ)andtheotherparameterscanbedeterminedbythisapproach.TheequationsarebasedonamodeloriginallypresentedbyWarrenandRootandextendedbyDaPratetal.andMavorandCinco-Ley.Theproposedmethodhasbeendevelopedtobeusedfornaturallyfracturedreservoirswithdifferentgeometries.Thismethoddoesnotinvolvetheuseofanychartandbyusingthepseudosteadystateflowregime,theinfluenceofwellborestorageonthevalueoftheparametersobtainedfromthistechniqueisnegligible.Inthistechnique,alltheparameterscanbeobtaineddirectlywhileinconventionalapproachesliketypecurvematchingmethod,parameterssuchasωandλshouldbeobtainedbyothermethodslikebuild-uptestanalysisandthisisoneofthemostimportantadvantagesofthismethodthatcouldsavetimeduringreservoiranalyses.Differentsimulatedandfieldexampleswereusedfortestingtheproposedtechnique.Comparisonbetweentheobtainedresultsbythisapproachandtheresultsoftypecurvematchingmethodshowsahighperformanceofdeclinecurvesinwelltesting.

简介：Inthispaper,weexaminethetinypolarizationrotationeffectintotalinternalreflectionduetothespin–orbitinteractionoflight.Wefindthatthetinypolarizationrotationratewillinduceageometricphasegradient,whichcanberegardedasthephysicaloriginofphotonicspinHalleffect.Wedemonstratethatthespin-dependentsplittinginpositionspaceisrelatedtothepolarizationrotationinmomentumspace,whilethespin-dependentsplittinginmomentumspaceisattributedtothepolarizationrotationinpositionspace.Furthermore,weintroduceaquantumweakmeasurementtodeterminethetinypolarizationrotationrate.Therotationrateinmomentumspaceisobtainedwith118nm,whichmanifestsitselfasaspatialshift,andtherotationrateinpositionspaceisachievedwith38μrad∕λ,whichmanifestsitselfasanangularshift.TheinvestigationofthepolarizationrotationcharacteristicswillprovideinsightsintothephotonicspinHalleffectandwillenableustobetterunderstandthespin–orbitinteractionoflight.

简介：Inthiswork,viaafacilesolvothermalroute,wesynthesizedananodematerialforlithiumionbatteries(LIBs)—SnS_2nanoparticle/graphene(SnS_2NP/GNs)nanocomposite.ThenanocompositeconsistsofSnS_2nanoparticleswithanaveragediameterof4nmandgraphenenanosheetswithoutrestacking.TheSnS_2nanoparticlesarefirmlyanchoredonthegraphenenanosheets.AsananodematerialforLIBs,thenanocompositeexhibitsgoodListorageperformanceespeciallyhighrateperformance.Atthehighcurrentrateof5,10,and20A/g,thenanocompositedeliveredhighcapacitiesof525,443,and378mAh/g,respectively.ThegoodconductivityofthegraphenenanosheetsandthesmallparticlesizeofSnS_2contributetotheelectrochemicalperformanceofSnS_2NP/GNs.

简介：与变化的流行延期敏感的服务，怎么为活动用户(亩)保证延期得到要求是为在绿云收音机存取网络(Crun)的downlinkbeamformer设计的大挑战。在这份报纸，我们与分离的率改编认为延期知道的downlinkbeamforming的问题最小化Crun的电源消费。我们经由一个混合整数处理这个问题非线性的节目(MINLP)，然后再用形式表示是的MINLP问题一个混合整数秒顺序锥程序(MI-SOCP)，它当整数变量作为连续的被放松时，是一个凸的程序。把明确的表达基于这，一个放气算法，其计算复杂性是多项式，被建议导出非最优的答案。模拟结果被介绍验证我们的建议算法的有效性。

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简介：BasedontimeseriesdataofRMBexchangerateandurban-ruralincome,thispapermakesanempiricalstudyfortheinfluenceofRMBexchangeratefluctuationonurban-ruralincomebyutilizingrollingregressionmodelthroughdirectandindirecttransmissionmechanisms.Accordingtotheresults,thetransmissioneffectofRMBexchangeratefluctuationonurban-ruralincomehasfeaturesofincompletenessandasymmetry.Moreover,RMBappreciationwillhelptoreducetheurban-ruralincomegap.Therefore,thispapersuggeststhattheChineseeconomyshouldacceleratethecourseoftransformingmode,adjustingstructureandpromotingdevelopmentunderthenewnormal.Meanwhile,reformofRMBexchangeratemechanismshouldbepromoted,livingstandardofresidentsmustbeimproved,andtheurban-ruralincomegapshouldbereduced.

简介：Thispaperdealswithadiscrete-timeGeo/Geo/1queueingsystemwithworkingbreakdownsinwhichcustomersarriveatthesysteminvariableinputratesaccordingtothestatesoftheserver.Theservermaybesubjecttobreakdownsatrandomwhenitisinoperation.Assoonastheserverfails,arepairprocessimmediatelybegins.Duringtherepairperiod,thedefectiveserverstillprovidesserviceforthewaitingcustomersatalowerservicerateratherthancompletelystoppingservice.Weanalyzethestabilityconditionfortheconsideredsystem.Usingtheprobabilitygeneratingfunctiontechnique,weobtaintheprobabilitygeneratingfunctionofthesteady-statequeuesizedistribution.Also,variousimportantperformancemeasuresarederivedexplicitly.Furthermore,somenumericalresultsareprovidedtocarryoutthesensitivityanalysissoastoillustratetheeffectofdifferentparametersonthesystemperformancemeasures.Finally,anoperatingcostfunctionisformulatedtomodelacomputersystemandtheparabolicmethodisemployedtonumericallyfindtheoptimumservicerateinworkingbreakdownperiod.

简介：Wehavedemonstratedahigh-average-power,high-repetition-rateopticalterahertz（THz）sourcebasedondifferencefrequencygeneration（DFG）intheGaSecrystalbyusinganear-degenerate2μmintracavityKTPopticalparametricoscillatorasthepumpsource.Thepowerofthe2μmdual-wavelengthlaserwasupto12.33Wwithcontinuoustuningrangesof1988.0–2196.2nm/2278.4–2065.6nmfortwowaves.DifferentGaSecystallengthshavebeenexperimentallyinvestigatedfortheDFGTHzsourceinordertooptimizetheTHzoutputpower,whichwasingoodagreementwiththetheoreticalanalysis.Basedonan8mmlongGaSecrystal,theTHzwavewascontinuouslytunedfrom0.21to3THz.ThemaximumTHzaveragepowerof1.66μWwasobtainedatrepetitionrateof10kHzunder1.48THz.Thesinglepulseenergyamountedto166pJandtheconversionefficiencyfrom2μmlasertoTHzoutputwas1.68×10-6.Thesignal-to-noiseratioofthedetectedTHzvoltagewas23dB.TheacceptanceangleofDFGintheGaSecrystalwasmeasuredtobe0.16°.