简介：Thetransmissionpropertiesofdouble-ringsplitringresonator(SRR)arraysandclosedringresonatorarraysaremeasuredusingterahertz(THz)time-domainspectroscopy.Thistechniqueallowsforthesimultaneousmeasurementoftheamplitudeandphaseofthetransmissioncoefficientasafunctionoffrequency.Theabilitytodirectlymeasurethephasespectrumisexpectedtobeimportantincharacterizingpotentialnegativeindexmedia.Intheemployedexperimentalgeometry,THzpulsesarenormallyincidentonthearrays.Thus,themagneticfieldliesintheplaneofthearraysandcannotcontributetothemagneticresonanceoftheSRR.However,itisfoundthattheelectricfield,whenappropriatelypolarized,cancoupletothemagneticresonance.ShiftsintheresonancepropertieswithchangesintheSRRdimensionsandthesubstratemediumaremeasured,theresultsofwhichareconsistentwiththeory.

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简介：managementsoliton(CSDDMS)被解释的集中的慢慢地减少的分散的概念，和在在散布的multi-photonnonlinear康普顿下面的全部的内部反射photonic水晶纤维(TIRPCF)的solitonpropagation的非线性的Shroedinger方程(NSE)被给。通过由步用Fourier这个方程解决，它在某些条件下面被发现那，soliton夫妇变得进thequasi-solitons，谁的振幅和宽度慢慢地并且周期性地被改变，但是有任何碰撞。在TIRPCFusing消除光soliton的裂口和变丑的一个新方法CSDDMS被建议。

简介：Inthisstudy,the3-dimensionaldiscreteelementmethodisfirstlyintroducedtoexplainthefracturingdamageprocessofthedynamicsplitexperimentofaspecialbrittleglassZnS.ThecorrespondingdynamicsplitexperimentisalsoperformedbyusingthesplitHopkinsonpressurebar.Thenthenumericalresultscorrespondcloselytothoseobtainedbyexperiments,andthefracturingdamagemodeshowsthatthesampleunderhighstrainrateloadingwouldcrackalongverticaldiameterinthebandregionbetweentwoloadingedges,whichdiffersfromthestaticdamagemode.Furthermore,bycomparingagroupofcontrastnumericaltests,thenumericalresultsprovethatloadingareauponthetopsideofsampleswouldinfluencethefracturemodeofdynamicsplitexperiments,whichindicatesthatthenarrowloadingplaneisbetter.

简介：Anultrasensitivemetamaterialsensorbasedondouble-slotverticalsplitringresonators(DVSRRs)isdesignedandnumericallycalculatedintheterahertzfrequency.ThisDVSRRdesignproducesafundamentLCresonancewithaqualityfactorofabout20whentheincidencemagneticfieldcomponentnormaltotheDVSRRarray.TheresonantcharacteristicsandsensingperformanceoftheDVSRRarraydesignaresystematicallyanalyzedemployingacontrastmethodamongthreesimilarverticalsplitringresonator(SRRs)structures.Theresearchresultsshowthattheeliminationofbianisotropy,inducedbythestructuralsymmetryoftheDVSRRdesign,helpstoachieveLCresonanceofahighqualityfactor.LiftingtheSRRsupfromthesubstratesharplyreducesthedielectriclossintroducedbythesubstrate.AllthesefactorsjointlyresultinsuperiorsensitivityoftheDVSRRtotheattributesofanalytes.Themaximumrefractiveindexsensitivityis788GHz/RIUor1.04×10~5nm∕RIU.Also,theDVSRRsensormaintainsitssuperiorsensingperformanceforfabricationtolerancerangingfrom-4%to4%andwiderangeincidenceanglesupto50°underbothTEandTMilluminations.

简介：Thepurposeofthispaperistointroduceasplitgeneralizedmixedequilibriumproblem(SGMEP)andconsidersomeiterativesequencestofindasolutionofthegeneralizedmixedequilibriumproblemsuchthatitsimageunderagivenboundedlinearoperatorisasolutionofanothergeneralizedmixedequilibriumproblem.Weobtainsomeweakandstrongconvergencetheorems.

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简介：SplitTrailingSuctionHopperDredgers(TSHD)arespecialtypeofworkingships,whosehullsopentodischargecargotocertainunloadingpositionswhilebeingatsea.Althoughtheyhavevariablehullgeometry,theirhydrostaticandstabilitycharacteristicsareusuallycalculatedforunchangedinitialhullgeometryloadingconditionsonly,andsuchcalculationsaresupportedbyclassificationsocietystabilityregulationsforthatshiptype.Nevertheless,inthisstudy,weshowthathydrostaticparticularsforintermediateloadingconditionsofvariableshipgeometrycanbecalculatedbyusinganalyticalsolutionsofbasichydrostaticintegralsforarbitrarylistangles,andobtainedforpolynomialradialbasisfunctiondescriptionofshipgeometry.Thecalculationswillbeperformedforsymmetrichopperopeningduringcargodischargeprocedure,thuscoveringallSplitTSHDregularunloadingconditions,withoutexaminationofshiphullopeningfailuremodes.Thus,allshiphydrostaticpropertieswillbepre-calculatedanalyticallyandpreparedforfurtherstabilitycalculations,asopposedtotheusualnumericalcalculationsforinitialgeometryandevenkeelonly,ascurrentlyusedinnavalarchitecturedesign.

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简介：Thispaperaimstomeettherequirementsofreducingthescanningtimeofmagneticresonanceimaging(MRI),acceleratingMRIandreconstructingahighqualityimagefromlessacquisitiondataasmuchaspossible.MRImethodbasedoncompressedsensing(CS)withmultipleregularizations(tworegularizationsincludingtotalvariation(TV)normandL1normorthreeregularizationsconsistingoftotalvariation,L1normandwavelettreestructure)isproposedinthispaper,whichisimplementedbyapplyingsplitaugmentedlagrangianshrinkagealgorithm(SALSA).TosolvemagneticresonanceimagereconstructionproblemswithlinearcombinationsoftotalvariationandL1norm,weutilizedcompositesplitdenoising(CSD)tosplittheoriginalcomplexproblemintoTVnormandL1normregularizationsubproblemswhichweresimpleandeasytobesolvedrespectivelyinthispaper.Thereconstructedimagewasobtainedfromtheweightedaverageofsolutionsfromtwosubproblemsinaniterativeframework.BecauseeachofthesplittedsubproblemscanberegardedasMRImodelbasedonCSwithsingleregularization,andforsolvingthekindofmodel,splitaugmentedlagrangealgorithmhasadvantageoverexistingfastalgorithmsuchasfastiterativeshrinkagethresholding(FIST)andtwostepiterativeshrinkagethresholding(TwIST)inconvergencespeed.Therefore,weproposedtoadoptSALSAtosolvethesubproblems.Moreover,inordertosolvemagneticresonanceimagereconstructionproblemswithlinearcombinationsoftotalvariation,L1normandwavelettreestructure,wecansplittheoriginalproblemintothreesubproblemsinthesamemanner,whichcanbeprocessedbyexistingiterationscheme.Agreatdealofexperimentalresultsshowthattheproposedmethodscaneffectivelyreconstructtheoriginalimage.ComparedwithexistingalgorithmssuchasTVCMRI,RecPF,CSA,FCSAandWaTMRI,theproposedmethodshavegreatlyimprovedthequalityofthereconstructedimagesandhavebettervisualeffect.

简介：AbstractSchatzkter type-I tibial plateau fracture is a split fracture of the lateral tibial plateau in sagittal plane, consequent to valgus impaction caused by low velocity of trauma. However, a deep understanding of the different columns of the tibial plateau and patho-mechanisms of the injury led to the unmasking of atypical fractures around the tibial plateau. We have encountered 2 cases with unusual fracture pattern of the lateral tibial condyle caused by road traffic accidents. The fracture pattern and severity of injury deviate from the original description of Schatzker type 1; in view of dual plane split, there is rotation of the posterolateral column fragment along its sagittal plane plus grade-III medial collateral ligament injury. The patients were initially treated with knee spanning external fixator and after a latency of 5 days, definitive fracture specific fixation was done, combined with repair of grade-III medial collateral ligament injury. At the 6 months follow-up both the patients achieved satisfactory knee functions (knee society score case 1:100 and case 2: 92) and returned to their jobs. The severity of fracture pattern and displacement as described should prompt for examination of associated ligament injury. Because of timely diagnosis, early and appropriate care promised an excellent function outcome even in such a severe nature of knee injury. To prompt the description of injury pattern we coined the name "dual split and dislocation" of lateral tibial plateau, as a complex injury variant of split fracture of lateral tibial plateau fracture.

简介：Thispaperdealswithabi-extrapolatedsubgradientprojectionalgorithmbyintroducingtwoextrapolatedfactorsintheiterativesteptosolvethemultiple-setssplitfeasibilityproblem.Thestrategyisintendtoimprovetheconvergence.Anditsconvergenceisprovedundersomesuitableconditions.Numericalresultsillustratethatthebi-extrapolatedsubgradientprojectionalgorithmconvergesmorequicklythantheexistingalgorithms.

简介：Inthispaper,weintroduceasplitgeneralizedequilibriumproblemandconsidersomeiterativesequencestofindasolutionoftheequilibriumproblemsuchthatitsimageunderagivenboundedlinearoperatorisasolutionofanotherequilibriumproblem.Weobtainsomestrongandweakconvergencetheorems.

简介：two-time-level，三维的数字海洋发行量模型(命名MASNUM)与一个二水平的、单个步的Eulerian提交向后时差计划被建立。大规模海洋的运动的一个数学模型基于协调的地面追随者，Boussinesq，海洋动力学的平均Reynolds的原始方程。一个简单却很实际的Eulerian提交向后方法被采用为barotropic和baroclinic模式作为时差方法代替大多数比较喜欢的跳蛙游戏计划。提交向后方法具有精确性的秒顺序，由每时间步要求一仅仅功能评估计算地有效，并且没有在三水平的计划固有的计算模式。这个方法比跳蛙游戏计划优异因为稳定性的最大的时间步骤这样象在蹒跚的网孔的跳蛙游戏计划的一样两次大计算效率能被加倍。一个空间变光滑方法被介绍在数字集成控制非线性的不稳定性。模仿赤道的Rossbysoliton的繁殖的一个理想的数字实验被执行测试振幅和这个新模型的阶段错误。这个发行量模型的表演进一步被验证与一地区性(西北太平洋)并且一伪全球(有排除的北极海洋的全球海洋模拟)模拟实验。这二个数字实验与观察显示出相当好的同意。在这二个实验的稳定性的最大的时间步也在采用跳蛙游戏计划的这个模型和那个模型之间被调查并且比较。

简介：Inthispaper,strongconvergenceofaniterativesequenceisproved,whichcomputesanapproximatesolutionofthesetofsolutionsofsplitvariationalinclusionproblem,thesetoffixedpointsofanonexpansivemappingandthesetofcommonfixedpointsofafamilyofgeneralizedasymptoticallynonexpansivesemigroup.Resultsobtainedinthispaperextendandunifythepreviouslyknownresultsinthepreviousliteratures.

简介：经过一年左右时间的建设，宽带IP城域网在中国已经初具规模。与窄带网络相比，通过宽带IP城域网，用户可以以更高的速度浏览Internet，同时由于网络速度的大大提高，用户可以享受VOD等多媒体业务带来的好处。

简介：剩余在SUS304不锈钢的墙中强调圆柱的绘画杯被裂口戒指测试评估，并且踩的影响死剩余压力上的参数被调查。裂口戒指测试的一个新理论模型被开发在一枚戒指评估剩余压力，它被验证由有ABAQUS代码并且由nanoindentation测试的数字模拟合理、可靠。七组裂口戒指测试被完成，并且剩余压力根据理论模型的意见是计算的。裂口戒指测试结果证明环绕的剩余在SUS304不锈钢的墙中强调圆柱的绘画杯很大并且没随着变化不同死角落半径。环绕的剩余压力首先随画punchdie清理的增加增加了，当清理增加了时，当时是几乎未改变的比空白的厚度大1?公里。因此，一个更小的清理被建议被选在拉杯的SUS304不锈钢的墙中减少剩余压力。

简介：摘要：本文主要介绍了地铁车辆基于架控制动供风系统的故障分析及优化。国内目前正线运营的地铁车辆中有近2/3的车辆使用的是架控型制动供风系统，其具有优秀的制动性能和灵活的控制逻辑，但地铁车辆在运营过程中得制动安全性和制动故障的处理效率需要进一步提高，因此对地铁车辆制动供风系统存在的问题进行详细的系统分析和研究，研究问题的根本所在，采取针对性措施，从而降低地铁车辆运营过程中的制动供风系统故障，对保证地铁车辆正常运营有重要意义。

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