简介：InthispaperattemptsaremadeatansweringtheproblemsonthestatisticalpropertiesofactivityflowtimeinPERTraisedbythelatefamousmathematicianHuaLoo-keng.

简介：Theequivalentoperatorequationisderivedfromthefullprimitivenonlinearequationsoftheatmosphericmotionandthepropertiesandphysicalsensesoftheoperatorsarestudied.IntheinfinitedimensionalHilbertspace,theglobalasymptoticbehavioroftheatmospheresystemwiththenon-stationaryexternalforcingisstudiedundertheassumptionoftheboundedexternalforcing.Theexistencetheoremsoftheglobalabsorbingsetandtheglobalattractorareobtained.Thus,theconclusionsdeducedfromthelarge-scaleatmosphere(LiandChou1996a;1996b)areextendedtothegeneralatmosphere.

简介：1.IntroductionInthispaperwedealwiththeexistenceofperiodicsolutionstothedifferential-delayequations(DDEs)oftheformwherewesupposeinwhatfollowsthatexist.(itisallowedthatshouldbeincreasing.)WehaveLemmaSuppose(H)holdsandn1isaninteger.Ifthereexistsanintege...

简介：FurtherDiscussion（拓展讨论）即阅读后的拓展活动，是高中英语阅读教学的重要环节。FurtherDiscussion环节的课堂设计是阅读课中的重点与难点，也是课堂的“亮点”，活动设计得当，不但能激发学生的学习兴趣，更能帮助学生“得体地使用英语”，培养学生获取信息和处理信息的能力。有效的FurtherDiscussion在开展时应注意它的趣味性、拓展性、价值性和实用性。

简介：Chinesegovernmentattachesmoreandmoreattentionsonnewenergyvehiclesinrecentyears.Itseemsthatnewenergyvehicles,especiallyhybridvehicles,willreplaceconventionalfuelcarsinthefuture.Permanentmagnetmotorsandhybridcarbatteriesarethemostcrucialcomponentsfornewenergycarsandrareearthmaterialisakeytotheproductionofpermanentmagnetmotorandhybridvehicles.Therefore,it

简介：FollowingtheinvitationofVietnamInstituteforWaterResourcesResearch(VIWRR),theChinesedelegationfromHangzhouRegionalCenterforSmallHydroPower(HRC)headedbythedeputydirectorofNanjingHydraulicResearchInstitute(NHRI),directorofHRC,Prof.ChertShengshui,haspaidavisittoVIWRRfromJune5toJune9,2002toexplorethepossibilityandfieldsofcooperation.

简介：Inthemid-December,DongSonggen,VicePresidentofCCPITledadelegationtovisitSriLanka.Duringthevisit,Mr.DongmetMr.Kosala,PresidentofSriLankaIndustrialandCommerceAssociationandMr.Peiris,MinisterofTrade.

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简介：Theneuralnetworkforsolvingquadraticprogrammingproblemisfurtherinvestigated,andtheavailablestabletestingconditionofthismethodispurposed.Weprovethatthenetwork,underproposedcon-dition,hasabehavioroftheglobalconvergence.Finally,numericalsimulationexamplesaregiven.

简介：ItisestimatedthatChinawillemit28milliontonsofSO,in2020.16milliontonsmorethantheamountthatthecountry'senvironmentcanaccommodate.

简介：在华南海把水泡羽毛的出现特征用作一本参考书，这份报纸继续学习水泡羽毛在冷渗出物生产的地震回答活跃区域。使羽毛建模计划更合理，我们修改了原来的建模计划并且重建一个羽毛水身体模型基于它是的半径的变化，水泡在海水升起。羽毛射击集合的地震记录被前面的模拟获得。单个射击的地震记录显示出一个散布波浪领域的明显的特征和模型的周期的特征。射击集合的地震记录用prestack深度移植被处理。它的成像节的边界有好集中效果。迁居节能与更高的精确性清楚地被想象。上述的研究再次为羽毛生产的地震回答的进一步的学习打了一个基础。他们逐渐地也探查了为羽毛处理方法的一个更合适的地震数据并且为羽毛的鉴定提供了理论指导。

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简介：Racialdisparitiesinadvancedcoursetakinghaveremainedandevenincreasedagainstthebackdropoftherecentadvancedplacement(AP)anddualenrollment(DE)programexpansiontoanopenaccess,yetfewhaveexaminedtheunderlyingdynamics.UsingtheCollegeBoard’sSATquestionnairedataofthe2008and2014publichighschoolseniors,weshowthatadvancedcoursetakingbecameincreasinglyprevalent,yetBlackstudents’coursetakingratesremainedthelowest,andHispanicstudents’progresswasrelativelylimited.Thethree-wayinteractionmodelsillustratetheunderlyingdynamics.Blackstudentshadpersistentlyloweracademicachievement;higher-achievingBlackfellfurtherbehind,andmid-achievingHispanicstudentshadnotkeptupwiththeirrespectiveWhitecounterpartinadvancedcoursetakingovertime.Justastheeffectivelymaintainedinequality(EMI)theorypredictsthatadvantagedgroupswouldeffectivelyseekqualitativeadvantages,Whitestudentsnotonlyhadfurtherstrengthenedtheiracademicachievements,theyhadalsoincreasinglygraspedtheopportunitiestotakeadvancedcoursesacrossachievementlevels,whichwouldenablethemtodistinguishthemselvesintheupcomingtransitiontocollege.

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简介：Ⅰ.RestrictionandAnalysisofDeathPenaltyinExistingSubstantiveLawinChinaInthenormativecriminallaw,thepersonaldangerousnessisthepossibilityoftheactortocommitacrimeagain.Beforethepersonaldangerousnessastheunaccomplishedcrimedoesnotbecomeaconsensusconcepttoentertheviewofthepublicscholars,howdoesitfitwiththecontrolofdeathpenaltyinourexistingsubstantivelaw?

简介：Arachidonicacid-metabolizingenzyme5-lipoxygenase(5-LOX)producespro-inflammatorymediators:leukotrienes(includingcysteinylleukotrienes,CysLTs).5-LOXandCysLTsareinvolvedinthepathophysiologicalprocessafterbraininjury,andtheactionsofCysLTsaremediatedviaactivationoftheirreceptors,CysLT1andCysLT2.Wehaverecentlyreportedtheexpressionsof5-LOX,CysLT1andCysLT2inhumanbrainswithtraumaticinjuryandtumors,andshort-termneuroprotectiveeffectsofCys-LT1antagonistsinstrokemodelsofratsandmice.