简介：已知曲线Γ：r=r（s）的基本向量α、β、γ且曲率和挠率分别为κ、τ，本文研究了由α、β和γ所作出的曲线Γ：ρ=r＋αa＋b∫s0^sβds的曲率κ和挠率τ的计算问题。

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简介：国务院有关部委、有关直属机构，各省、自治区、直辖市、计划单列市财政厅（局），新疆生产建设兵团财务局，有关中央管理企业：为了深入贯彻实施企业会计准则，解决执行中出现的问题，同时，实现企业会计准则持续趋同和等效，我部制定了《企业会计准则解释第7号》，现予印发，请遵照执行。

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简介：Liquid-solid(L-S)masstransfercoefficients(Ks)werecharacterizedinagas-liquid-solid(G-L-S)three-phasecountercurrentmagneticallystabilizedbed(MSB)usingamorphousalloySRNA-4asthesolidphase.Effectsofsuperficialliquidvelocity,superficialgasvelocity,magneticfieldstrength,liquidviscosityandsurfacetensionwereinvestigated.ExperimentalresultsindicatedthattheexternalmagneticfieldincreasedKsinthree-phaseMSB,ascomparedtothoseinconventionalG-L-Sfluidizedbeds;thatKsincreasedwithmagneticfieldstrength,superficialgasandliquidvelocitiesanddecreasedwithliquidviscosityandsurfacetension;andthatKsshoweduniformaxialandradialdistributionsexceptforsmallincreasesclosetothewall.DimensionlesscorrelationswereestablishedtoestimateKsoftheG-L-ScountercurrentMSBusingSRNA-4catalyst,withanaverageerrorof3.6%.

简介：SmallRNA(sRNA)-mediatedpost-transcriptionalregulationdiffersfromprotein-mediatedregulation.Throughbasepairing,sRNAcanregulatethetargetmRNAinacatalyticorstoichiometricmanner.Sometheoreticalmodelswerebuiltforcomparisonoftheprotein-mediatedandsRNA-mediatedmodesinthesteady-statebehaviorsandnoiseproperties.ManyexperimentsdemonstratedthatasinglesRNAcanregulateseveralmRNAs,whichcausescrosstalkbetweenthetargets.Here,wefocusonsomemodelsinwhichtwotargetmRNAsaresilencedbythesamesRNAtodiscusstheircrosstalkfeatures.Additionally,thesequence-functionrelationshipofsRNAanditsroleinthekineticprocessofbase-pairinghavebeenhighlightedinmodelbuilding.

简介：Theobjectiveofthispaperistointroduceelementarydiscretereflectedbackwardequationsandtogiveasimplemethodtodiscretizeintimea(continuous)reflectedbackwardequation.Apresentationofnumericalsimulationsisalsodescribed.

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简介：ThispaperdealswiththeexistenceandmultiplicityofperiodicsolutionsofDuffingequationsx+g(x)=p(t),TheauthorprovesaninfinityofperiodicsolutionstotheperiodicallyforcednonlinearDuffingequationsprovidedthatg(z)satisfiesthegloballylipschitzianconditionandthetime-mappingsatisfiestheweakeroscillatingproperty.

简介：Let{Xn,n≥1}beasequenceofα-stablerandomvariables(0

简介：Inthispaper,therigiditytheoremsofthesubmanifoldsinS^n+pwithparallelMoebiusformandconstantMObiusscalarcurvaturearegiven.

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简介：Theliquidmolarvolumesofnonazeotropicrefrigerantmixtures(NARM),calculatedwithPengRobinson(PR)equation,werecomparedwithvapor-liquidequilibriumexperimentaldatainthispaper.Providedwithcoreactioncoefficientkij,thediscrepanciesofliquidmolarvolumedataforR22+R114andR22+R142busingPRequationare7.7%and8.1%,respectively.WhenHBT(Hankinson-Brobst-Thomson)equationwasjoinedwithPRequation,thedeviationsarereducedtolessthan1.5%forbothR22+R114andR22+R142b.

简介：TheCDFcollaborationattheFermilabTevatronanalysesproton-antiprotoninteractionsatacenter-of=massenergyof2TeV.duringthethecolliderrunstartingthisyeartheexperimentexpectstorecord1Petabyteofdataandassociateddatasamples,TheDataHandling(DH)systemhasonlineandofflinecomponents.TheDHofflinecomponentprovidesaccesstothestoreddata,tostoredreconstructionoutput,tostoredMonte-Carlodatasamples,anduserowneddatasamples.Itservesmorethan450physicistsofthecollaboration.TheextrarequirementstotheofflinecomponentoftheDataHandlingsystemaresimplicityandconvenienceforusers.Morethan50millioneventsoftheCDFRunIIdatahavebeenalreadyprocessedusingthissystem.

简介：在这份报纸，我们学习(伪，分级的旗帜弯曲在上的尾)度量标准一歧管尺寸n的M(n鈮?3)。建议那一(伪，尾)度量标准F不是Randers类型的一个Finsler度量标准，也就是说F鈮吗？+k3尾k1>0，k2并且k3是M上的分级的功能。如果并且仅当，我们证明F具有分级的旗帜弯曲并且消失的S弯曲旗帜弯曲K=0并且F是一个Berwald度量标准。在这种情况中，F是一局部地Minkowski度量标准。关键词Finsler度量标准-(伪，尾)度量标准-旗帜弯曲-S弯曲-Minkowski公制的先生(2000)题目分类53B40-53C60由中国(资助号码10971239)的国家自然科学基础支持了

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简介：本文，首先在Ｖ．Ｖ．Ｓｔｅｐａｎｏｖ空间连续模概念，在此空间内讨论概周期函数的Ｆｏｕｒｉｅｒ系数与连续模之间的关系。

简介：Bythereactionofpoly(bromoacetylstyrene)(EBPS)withthiaurea(TU),akindofnovelchelatingresinwithheterocyaclicringofsulfurandnitrogen,poly[4-(2-amino)thiazoleyl-4-vinylben=ene],wassynthesized.ItsstructurewascharacterizedbyFTIRandelementalanalysis.Thefactorswhichhaveinfluenceonthereactionsuchasreactiontime,solvents,andmolarratioofreactantswereinvestigated.

简介：Byusingsequentiallylowercompletespaces(see[Zhu,J.,Wei,L.,Zhu,C.C.:Caristitypecoincidencepointtheoremintopologicalspaces.J.AppliedMath.,2013,ID902692(2013)]),wegiveanewversionofvectorialEkeland’svariationalprinciple.Inthenewversion,theobjectivefunctionisdefinedonasequentiallylowercompletespaceandtakingvaluesinaquasi-orderedlocallyconvexspace,andtheperturbationconsistsofaweaklycountablycompactsetandanon-negativefunctionpwhichonlyneedstosatisfyp(x,y)=0iffx=y.Here,thefunctionpneednotsatisfythesubadditivity.FromthenewEkeland’sprinciple,wededuceavectorialCaristi’sfixedpointtheoremandavectorialTakahashi’snon-convexminimizationtheorem.Moreover,weshowthattheabovethreetheoremsareequivalenttoeachother.Byconsideringsomeparticularcases,weobtainanumberofcorollaries,whichincludesomeinterestingversionsoffixedpointtheorem.