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简介：这篇论文证明那，为任何发电机xεExt是s，tq(Zp,Zp),如果(1L⋀我)*φ*(x)εExts+1，tq+2q(H*L⋀M，Zp)是在亚当斯的一个永久周期光谱顺序(驴)，然后h0xεExts+1，tq+q(Zp,Zp)也是在ASS的一个permenent周期。作为应用，纸获得那h0hnhm∈是在ASS和它的一个永久周期在范围的稳定的homotopy组收敛到顺序p的元素，在的地方p≥5是一个素数，s≤4，n≥m+2≥4并且M是穆尔光谱。

简介：从前，有一个农夫种了一片禾苗地。他总是嫌田里的庄稼长得慢，今天去瞧瞧，明天去看看，觉得禾苗总没有长高。他心想：有什么办法能使它们长得快些呢？突然他想到了一个主意。他把禾苗一棵一棵地往上拔，能快速让它们长高。

简介：动作描述：身体呈后置支撑的姿势，身体呈一条直线（图1）。

简介：Manybiologicalmaterials,suchaswoodandbone,possesshelicoidmicrostructuresatmicroscale,whichcanserveasreinforcingelementstotransferstressbetweencracksurfacesandimprovethefracturetoughnessoftheircomposites.Failureprocesses,suchasfiber/matrixinterfacedebondingandslidingassociatedwithpull-outofhelicalfibers,areresponsiblemainlyforthehighenergydissipationneededforthefracturetoughnessenhancement.Herewepresentsystemicanalysesofthepull-outbehaviorofahelicalfiberfromanelasticmatrixviathefiniteelementmethod(FEM)simulation,withimplicationsregardingtheunderlyingtougheningmechanismofhelicoidmicrostructures.Wefindthat,throughtheiruniformcurvatureandtorsion,helicalfiberscanprovidehighpull-outforceandlargeinterfaceareas,resultinginhighenergydissipationthataccounts,toalargeextent,forthehightoughnessofbiologicalmaterials.Thehelicityoffibershapeintermsofthehelicalanglehassignificanteffectsontheforce-displacementrelationshipsaswellasthecorrespondingenergydissipationduringfiberpull-out.

简介：Inthenewera,thepushandpullfactorsinChina-U.S.cooperationareemerginganddevelopingcenteringonwhethertheycouldreadjusttherelationshipbetweentherisingpowerandtheestablishedpowerinastablemanner.Therefore,China-U.S.cooperationshouldgraduallyresolvethestructuralconflictsinnecessarystrugglesandconsultations.Andtheall-aroundcooperationshouldbeplannedandpromotedintheaspectslike

简介：在这份报纸，静态、动态的开车进入用餐的餐厅电压上的开的裂缝的效果一静电地激活修理改正并且伸臂微光束被调查。由介绍数学建模，管理静电干扰和动态方程被SSLM和基于Galerkin的减少的顺序模型分别地解决。然后，在微光束的各单个方面的开的快克到一个无团的旋转弹簧和击碎的模式形状被建模，相应自然频率由考虑边界并且修正条件并且使用转移矩阵方法是计算的。最后，微光束的开车进入用餐的餐厅电压上的裂缝深度比率，裂缝位置和裂缝数字的效果被学习。在在用机器制造的过程创造的剩余压力旁边，裂缝能被开始，这被显示出，生长并且因而由减少改变系统的开车进入用餐的餐厅电压自然频率。结果证明裂缝位置在在减少的裂缝深度比率旁边是有效的开车进入用餐的餐厅电压。另外，在修理改正的微光束，为在的裂缝地点有几个点，这被显示出，开车进入用餐的餐厅电压是极值。

简介：Wepresentanequivalentcircuitmodelforasiliconcarrier-depletionsingle-drivepush–pullMach–Zehndermodulator(MZM)withitstravelingwaveelectrodemadeofcoplanarstriplines.Inparticular,thepartialcapacitancetechniqueandconformalmappingareusedtoderivethecapacitanceassociatedwitheachlayer.ThePNjunctionisaccuratelymodeledwiththefringecapacitancestakenintoconsideration.Thecircuitmodelisvalidatedbycomparingthecalculationswiththesimulationresults.Usingthismodel,weanalyzetheeffectofseveralkeyparametersonthemodulatorperformancetooptimizethedesign.ExperimentalresultsofMZMsconfirmthetheoreticalanalysis.A56Gb/son–offkeyingmodulationanda40Gb/sbinaryphase-shiftkeyingmodulationareachievedusingtheoptimizedmodulator.

简介：在对传统的供应链运营模式Push模式和Pull模式进行基本要素比较和流程比较的基础之上,提出了基于时间竞争的Push&Pull综合供应链运营机制,阐述了该模式的运作构架,以及Push&Pull结合点的确定和运作.

简介：Pull-apartbasinsofthreescaleswerefoundalongtheHaiyuanfaultzone.Thelargestoneismorethan50kmlong,namedLaolongwanbasindevelopedinMiocene.Amodelwasbuilttocalculatetheamountofpull-apartofanextensionalbasin.Parametersusedincalculationincludethicknessandlengthofdepositionanddepthofdetachment.Theresultsofcalculationshowthattheamountofpull-apartoftheLaolongwanBasinisabout30km.Basedonpreviousstudiesandcalculatingbyusingtheaverageslipratemethod,amountofpull-apartoftheothertwosmallerbasinsare22kmand8km,respectively.Thus,thetotaldisplacementofstrikeslipalongtheHaiynanfaultzoneisabout60kin,whichisclosetotheoffsetoftheYellowRiverfromJingtaitoJingynan.

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简介：Thepapergivesananalysisontechnicalcharacteristicsofrepairtechniquesforfrictionstirweldingdefects.Toovercomethedefects,anewrepairtechnique,inertiafrictionpullplugwelding(IFPPW),wasresearchedanditsequipmentwasdevelopedaswell.ElementarydatumwasachievedbyinvestigatingtheinfluencesoftechnologicalparametersonmechanicalpropertiesandbyanalyzingthestructuralcharacteristicsofrepairjointwithIFPPW.ThestudyshowsthatthestabilityandreliabilityofweldingprocessofIFPPWcanbeguaranteedthroughtheconstantenergyfromtheflywheel.Integratedwiththeadvantagesoffrictionpullplugwelding,theIFPPW,freefrombackanvil,isconsideredasapromisingtechniqueinrepairofterminationkeyholeofbobbintoolfrictionstirweldingandpoint-likedefectsinaluminumalloywelding.

简介：Inthispaper,ananalyticaltechniqueispresentedfortimedomainanalysis(transientandsteady-stateresponse)ofperturbedPWMpush-pullDC-DCconverterusinginterestingcorollaryonKharitonov'stheorem.ThemainadvantageoftheproposedanalysisisthateventhoughthetransferfunctionmodelofaPWMpush-pullDC-DCconverterisperturbed,thecompleteanalysishasbeendoneonalineartransferfunctionmodelofaPWMpush-pullDC-DCconverter.TheproposedanalysisisverifiedusingMATLABsimulation.Thisanalysiswillbeverymuchusefultopowerelectronicsengineers,sincethetechniqueisverysimpleandcomputationallyefficientandeasilyapplicableinpreciseapplicationssuchasaerospaceapplications.

简介：Time-dependentdensity-functionaltheory(TDDFT)hasbeenappliedtocalculatetheelectronicstructureandsecond-ordernonlinearoptical(NLO)propertiesofsomeorganicmolecules.Thetwo-dimensional(2-D)chargetransfercharateristicsofcalculatedmoleculeswerestudiedandcomparedwithcorrespondingexperimentalresults.Allthetheoreticalresultsagreewellwiththemeasurement.For2-Dmoleculewithtwo-foldsymmetry,thedominantchargetransferisoff-diagonal,whileforthree-foldsymmetry2-Dmolecule,thedominantchargetransferisnotonlybetweenbranchesandcentralgroupbutalsoamongbranches.

简介：一系列新奇低乐队差距施主领受人(D-A)类型在主要的链(M1)并且在由电子缺乏的领受人块组成的器官的共聚物(BT-F-TPA，BT-CZ-TPA和BT-SI-TPA)悬挂(M2)是与不同电子富人一起的polymerized施主(M3M5)块，即，9,9-dihexyl-9H-fluorene，N-alkyl-2,7-carbazole，和2,6-dithinosilole，分别地经由铃木方法。这些聚合物展出了相对低的乐队差距(1.651.88eV)和宽广吸收范围(680740nm)。作为电子施主合并这些聚合物的体积异质接面(BHJ)太阳能电池，相配与[6,6]-phenyl-C61-butyric酸甲基酉旨(PC61BM)或[6,6]-phenyl-C71-butyric酸甲基酉旨(PC71BM)作为在不同重量的电子领受人，比率下面被制作并且测试与白光的照明的AM1.5的100mW/cm2。包含施主BT-SI-TPA和领受人PC71在1:2重量比率的BM显示出1.88%的最好的力量变换效率(PCE)值，与开的电路电压(Voc)=0.75V，短路电流密度(Jsc)=7.60妈/厘米2,并且充满因素(FF)=33.0%。

简介：Wedemonstratebinaryphaseshiftkeying(BPSK)modulationusingasiliconMach–Zehndermodulatorwithaπ-phase-shiftvoltage(Vπ)of-4.5V.Thesingle-drivepush–pulltravelingwaveelectrodehasbeenoptimizedusingnumericalsimulationswitha3dBelectro-opticbandwidthof35GHz.The32Gb/sBPSKconstellationdiagramismeasuredwithanerrorvectormagnitudeof18.9%.

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简介：今年,是敬爱的小平同志诞辰100周年,也是小平亲自批准下广播电视大学创建25周年.值此时刻,我们应当以什么样的业绩来缅怀小平同志,以什么样的成效来进一步发展小平缔造的电大事业,是值得全体电大人认真思考的问题.

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简介：(一)ALindaEvanswasmybestfriend—likethesisterIneverhad.Wedideverythingtogether:pianolessons,movies,swimming,horsebackriding.WhenIwasthirteen,myfamilymovedaway.LindaandIkeptintouchthroughletters,andwesaweachother