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简介：ItisoutofquestionthatChinahasachievedconsiderableadvancementsinscienceandtechnology.Theworldwidespreadof"MadeinChina"thatgetsonthewesterncountries'nervesisagoodillustration.However,althoughcomparativelybetterthansomeotherdevelopingcountries,wehavetofacethesituationthatscienceandtechnologyinsuchagreatnationasChinaisstillseriouslylaggedbehind,lackinggreatbreakthroughsandtop-rankingmastersandleaders.That'swhywefeeluneasyinfrontofinternationalcolleagues.

简介：NEC公司宣布其IP多媒体子系统（IMS）平台已协助NTTDoCoMo公司成功推出PushTalk服务。目前，IMS平台因其利用公共信令协议SIP（会话初始协议）提供语音服务和数据服务，已引起整个电信产业的广泛关注。这些服务可以非常容易地任意组合成多种新服务。

简介：SinceChinasetthesustainabledevelopmentstrategy,positiveprogresshasbeenmadeinimplementingthestrategy,andactivecontributionshavebeenmadetothesustainabledevelopmentofmankind.Currently,profoundchangesaretakingplaceinChina'sinternalandexternalsituation.Anewerahasbegunintheimplementationofthesustainabledevelopmentstrategy.Weshouldtakefulladvantageofthisopportunityandmakeuseofallfavorableconditionsandchancestofurtherpromotetheimplementationofthesustainabledevelopmentstrategy.

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：根据HarIisInteractive和ForceNineConsulting公司对大公司无线产品购买和使用模式的调查表明，尽管大公司对RFID和GPS应用的投资很少，但是这两个应用领域将在下一轮大公司签订的无线产品合同中占据相当比重，大约产生10亿美元的年收入。

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.