简介：Anewflowtheoryisestablishedthroughtheobjectivityrequirementonthefluiddynamics.Itwasknownthatinhomogeneousfluidmotiongaverisetoviscousforcewhiletheselectionofobserversondifferentspace-timepointswouldchangesuchaninhomogeneouscharacter.Therefore,whentheviscousforcewasconsideredasanobjectiveexistenceforeigntotheselectionofobservers,theforminvariancesofviscousforceandmomentumequationunderlocalrotationtransformationrequiredanewdynamicfield,namelythevortexfieldtobeintroduced.ThenthedynamicalequationsofallflowfieldswereobtainedthroughconstructingtheLagrangiandensityoffluidsystemandusingthevariationalapproachofenergy.

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简介：Theinfluenceofsiliconsliceflatnessonbondingtechnologyandtherelationbetweenaforeignparticleandresultingbubblearequantitativelypresentedbytheelastictheory.ItisdemonstratedexperimentallybyX-raydoublecrystaldiffractometryandinfraredimager.

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简介：TherecenttwodecadeshaveseenagreatincreaseofOriginalEquipmentManufacturing("OEM")businessinChina.OEMproductsareusedexclusivelyforexportpurposeandretailedinforeignmarketslabelledasthepurchasingcompany’sbrand.However,whethertheuseofatrademarkinthiscircumstanceconstitutesthe"use"inTradeMarkLawandwhatevidenceisneededtojustifythe"use"inanycontinuousthree-yearperiodhavebeenthefocalpointsofdebateregardingtheappropriatecompassofTradeMarkLaw.Loomingbehindtheuncertaintyofthelegalterm-"use"andinconsistentstandardsadoptedbyadministrativeauthoritiesandcourtsareunidentifiedriskstobetakenbyOEMoperators.

简介：Sequentialmeasurementprocessingisofbenefittobothestimationaccuracyandcomputationalefficiency.Whenthenoisesarecorrelatedacrossthemeasurementcomponents,decorrelationbasedoncovariancematrixfactorizationisrequiredinthepreviousmethodsinordertoperformsequentialupdatesproperly.Anewsequentialprocessingmethod,whichcarriesoutthesequentialupdatesdirectlyusingthecorrelatedmeasurementcomponents,isproposed.Andatypicalsequentialprocessingexampleisinvestigated,wheretheconvertedpositionmeasurementsareusedtoestimatetargetstatesbystandardKalmanfilteringequationsandtheconvertedDopplermeasurementsarethenincorporatedintoaminimummeansquarederror(MMSE)estimatorwiththeupdatedcross-covarianceinvolvedtoaccountforthecorrelatederrors.Numericalsimulationsdemonstratethesuperiorityoftheproposednewsequentialprocessingintermsofbetteraccuracyandconsistencythantheconventionalsequentialfilterbasedonmeasurementdecorrelation.

简介：作为最典型的沼泽地之一，沼泽地在水文学和经济方面起一个重要作用，特别在使差异生物。在这研究，沼泽地的生态的水存储的定义和涵义为th被讨论

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简介：这篇论文在计划的一个材料要求(MRP)处理计划的铅时间计算的问题在随机的铅时间下面的环境。目的是最小化成立和backlogging费用的和。建议途径基于库存控制决定变量在哪儿是整数的分离时间。系统的二种类型被考虑：连续生产的多水平和汇编系统。为连续生产系统(在每水平的部件的一种类型)，一个数学模型被建议。然后，这个模型等价于众所周知的分离报童模型，这被证明。这直接在计划的铅时间提供最佳的价值。为多铺平汇编系统，一个奉献模型被建议，变量和目的工作的决定的一些性质被证明。这些性质被用来在客观功能上在决定变量和更低、上面的界限上计算更低、上面的限制。获得的限制和界限打开可能性开发例如，使用一个分支和界限途径的一个有效优化算法。纸与相应证明和几个数字例子详细论述建议模型。建议模型的一些优点和这研究的观点被讨论。

简介：XiliaoheRiverwatershedplaysanimportantroleinregionalandnationalgrainsecurity.Withthedevelopmentofsocietyandeconomy,waterconsumptionthatincreaseddramaticallycauseswatershortages.Cropwaterrequirementcanprovidequantitativebasisformakingregionalirrigationscheme.Inthisstudy,springmaizewaterrequirementiscalculatedbyusingPenmanMonteithformulaandspringmaizecoefficientfromMaytoSeptemberat10meteorologicalstationsinXiliaoheRiverwatershedfrom1951to2005.Thevariationtrendofthespringmaizewaterrequirementduringthewholegrowingstage,waterrequirementineverymonth,andmeteorologicalinfluencingfactorsareobtainedbyusingMann-Kendallmethod,andthedegreeofgreyincidencebetweenthewaterrequirementandmeteorologicalinfluencingfactorsareshown.TheresultsarethespringmaizewaterrequirementduringthewholegrowingstagesincreasesathalfofthestationsinXiliaoheRiverwatershed,andareremarkablyaffectedbythewaterrequirementinMay.Themonthlymean,maximumandminimumairtemperatureformMaytoSeptembershowanincreasingtrendinXiliaoheRiverwatershedinrecent55years.Themonthlymeanandminimumairtemperatureincreasesnotably.Therelativehumidity,precipitation,windspeedandsunshineshowadecreasingtrendwithvarietyfordifferentmonths.Themonthlymaximumairtemperature,windspeed,sunshineandmonthlymeanairtemperaturehavethehighestcorrelationdegreewithspringmaizewaterrequirementfromMaytoSeptember.

简介：Inordertoreducetheenvironmentalandecologicalproblemsinducedbywaterresourcesdevelopmentandutilization,thispaperproposesaconceptofenvironmentalandecologicalwaterrequirement.Itisdefinedastheminimumwateramounttobeconsumedbythenaturalwaterbodiestoconserveitsenvironmentalandecologicalfunctions.Basedonthedefinition,themethodsoncalculatingtheamountofenvironmentalandecologicalwaterrequirementaredetermined.InthecasestudyonHaihe-Luanheriversystem,thewaterrequirementisdividedintothreeparts,i.e.,thebasicin-streamflow,waterrequirementforsedimenttransferandwaterconsumptionbyevaporationofthelakesoreverglades.Theresultsofthecalculationshowthattheenvironmentalandecologicalwaterrequirementintheriversystemisabout124×108m3,including57×108m3forbasicin-streamflow,63×108m3forsedimenttransferand4×l08m3fornetevaporationlossoflakes.Thetotalamountofenvironmentalandecologicalwaterrequirementaccountsfor54%oftheamountofrunoff(228×108m3).However,itshouldberealizedthattheamountofenvironmentalandecologicalwaterrequirementmustbemorethanthatwehavecalculated.Accordingtothisresult,weconsiderthattherationalutilizationrateoftherunoffintheriversystemsmustnotbemorethan40%.Sincethecurrentutilizationrateoftheriversystem,whichisover80%,hasbeenfarbeyondthelimitation,theproblemsofenvironmentandecologyarequiteserious.Itisimperativetocontrolandadjustwaterdevelopmentandutilizationtoeliminatetheexistingproblemsandtoavoidthepotentialecologicalorenvironmentalcrisis.

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