简介:Thispaperstudiestheinteractionofelementarywavesincludingdelta-shockwavesontwoboundariesforahyperbolicsystemofconservationlaws.Thesolutionsoftheinitial-boundaryvalueproblemforthesystemareconstructivelyobtained.Intheproble
简介:Honjiinstabilityandringingofoffshorestructruresaretwodifferentphenomena.Honjiinstabilityoccursatacircularcylinderintransverseperiodicfinitemotioninawatertank.Itissuperposedonthestreamingflowinducedbythecylinder'sboundarylayer.Itsoscillationperiodishalfoftheperiodofthecylinderoscillation.FinitevolumecalculationsofthefilteredNavier-Stokesequationsvisualizethethree-dimensionalinstability,wherefluidparticlestransportedbythecircumferencialrol...
简介:与称为超点阵的各种各样的配置覆盖同量的光格子能导致异国情调的格子拓扑学并且,接着新奇物理的发现。在这学习,由重叠格子的最大值,新孤立的结构被创造,当最小的干扰能产生各种各样的sublattice模式时。原始格子的三种不同类型被用来表明孤立的平方,在二维的光超点阵,其模式能被调节极化动态地操作的三角形、六角形的sublattice结构,频率,和激光横梁的紧张。另外,我们建议改变相对阶段在sublattices调整通道振幅的方法。我们的配置提供唯一的机会在交叉形成的格子学习粒子纠纷井并且在异国情调的格子几何学实现特殊的量逻辑门。
简介:LetRbeafinitechainringwithmaximalidealγandresiduefieldF,andletγbeofnilpotencyindext.ToeverycodeCoflengthnoverR,atowerofcodesC=(C:γ0)(C:γ)(C:γi)(C:γt-1)canbeassociatedwithC,whereforanyr∈R,(C:r)={e∈Rn|re∈C}.UsinggeneratorelementsoftheprojectionofsuchatowerofcodestotheresiduefieldF,wecharacterizecycliccodesoverR.ThischaracterizationturnstheconditionforcodesoverRtobecyclicintooneforcodesovertheresiduefieldF.Furthermore,weobtainacharacterizationofcycliccodesovertheformalpowerseriesringofafinitechainring.
简介:Reiter'ssyndromeisasecondarydiseaseofurethrainfection.Itconsistsofurethritis,nonsuppurativearthritis,conjunctivitisandcutaneousmucosalesions.YoungmalesaremorelikelytogetReiter'ssyndromethanfemales.Thusfar,therearenoreportsofwomeninChinawithReiter'sSyndrome.ThisreportdocumentstwofemaleswithReiter'sSyndrome.
简介:在这篇论文,锥模型在分层的土壤上被用于二个基础的颤动分析半空间。在分析,在心土的全部的应力场被划分成免费地并且散布的地。种子“s简化了方法为thefree地分析被采用,当锥模型为分析被建议时,动态散布压力波浪回答。在散布采购的有二的分层的阶层的shear应力场和压缩应力场被计算由砍锥和压缩的锥分别地。而且,在有二个基础的心土的应力场被划分成六个地区,并且P波浪和Swave在每个地区被分析。数字结果被提供在垂直、水平的正弦曲线力量刺激下面为二个表面基础说明增加的应力场的特征。建议的锥模型可能在处理一些联系散布withmulti采购的复杂问题是有用的。
简介:Inthispaper,wediscusssomefundamentalpropertiesoftwoidealizedtypicalnetworks,namely,gridtypeandradial-circulartype.ThediscussionisbasedonSPCP(ShortestPathCountingProblem),whichreflectsthetrafficdensityofaroadsegment.Furthermore,wecomparetheireffectivenessbasedontheobtainedresultsoftheabovetworoadnetworks,andsuggestsomeproposalsonthedesignofcarlanesbyconsideringthedirectionofaroadsegmentinrelationtotheseroadnetworks.
简介:Thispaperconsiderssingle-machineschedulingproblemsingrouptechnologywiththejobs'processingtimesbeingsimplelinearfunctionsoftheirstarttimes.Theobjectivefunctionsaretheminimizingofmakespanandtotalweightedcompletiontime.SomeoptimalconditionsandalgorithmsaregivenandthefactthattheproblemoftotalweightedcompletiontimesisNP-hardisproved.
简介:Twonewaristolanesesquiterpenes,namely,aristolan-10-ol-9-oneandaristolan-8-en-1-one,wereisolatedfromtheredalgaLaurenciasimilis.TheirstructureswereestablishedonthebasisofvariousNMRspectroscopicanalyses,including2DNMRtechniques(1H-1HCOSY,HMQC,HMBC,andNOESY)andHR-FAB-MS.
简介:ThesubstantialchangeintheinternationalsystemsincetheendoftheWorldWarIIhasbeenaboontonon-Westernnations,whichmakeupthree-quartersofallthecountriestoday.Mostnationalities,populationsandcountriesthathadlittlefreedomandalmostnovoicehaverepresentationtodayintheUnitedNationsandG20,andtheybenefitfrom
简介:Thepresentstudydevelopsthefracturetheoryforatwo-dimensionaloctagonalquasicrystals.TheexactanalyticsolutionofaModeⅡGriffithcrackinthematerialwasobtainedbyusingtheFouriertransformanddualintegralequationstheory,thenthedisplacementandstressfields,stressintensityfactorandstrainenergyreleaserateweredetermined,thephysicalsenseoftheresultsrelativetophasonandthedifferencebetweenmechanicalbehaviorsofthecrackproblemincrystalandquasicrystalwerefiguredout.Theseprovideimportantinformationforstudyingthedeformationandfractureofthenewsolidphase.