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简介：Severalcrosslinkedprotonexchangemembraneswithhighprotonconductivitiesandlowmethanolpermeabilitycoefficientswereprepared,basedonthesulfonatedpoly[(4-fluorophenoxy)(phenoxy)]phosphazene(SPFPP)andnewlysynthesizedwatersolublesulfonatedpoly(cyclophosphazene)(SPCP)containingclusteredflexiblependantsulfonicacids.ThestructureofSPCPwascharacterizedbyfouriertransforminfraredspectroscopy(FTIR)and~1HNMRspectra.ThemembranesshowedmoderateprotonconductivitiesandmuchlowermethanolpermeabilitycoefficientswhencomparedtoNafion117.Transmissionelectronmicroscopy(TEM)resultsindicatedthewell-definedphaseseparationbetweenthelocallyanddenselysulfonatedunitsandhydrophobicunits,whichinducedefficientprotonconduction.IncomparisonwithSPFPPmembrane,theprotonconductivities,oxidativestabilitiesandmechanicalpropertiesofcrosslinkedmembranesremarkablywereimproved.TheselectivityvaluesofallthecrosslinkedmembraneswerealsomuchhigherthanthatofNafion117(0.74×10~5S·s/cm~3).TheseresultssuggestedthatthecSPFPP/SPCPmembraneswerepromisingcandidatematerialsforprotonexchangemembraneindirectmethanolfuelcells.

简介：Nafion-stabilizedPtnanoparticlecolloidalsolutionissynthesizedthroughethyleneglycolreduction.Pt/Nafionaddedwithcarbonblackaselectricconductionmaterial(labeledPt/Nafion-XC72)showsexcellentelectrochemicalpropertycomparedwithPt/C.Aftera300-cycledischargingdurabilitytest,thecellperformanceofmembraneelectrodeassembly(MEA)withthePt/Nafion-XC72andPt/Ccatalystsindicatesa29.9%and92.2%decrease,respectively.ThechargetransferresistancesofPt/Nafion-XC72andPt/Cincreaseby27.2%and101.9%,respectively.TheremainingelectrochemicallyactivesurfaceareaofPtisabout61.7%inPt/Nafion-XC72andabout38.1%inPt/Cafterthedurabilitytest.TheparticlesizeofPt/Cincreasesfromabout5.1nmtoabout10.8nmbutonlyfrom3.6nmto5.8nminthecaseofPt/Nafion-XC72.ThesedatasuggestthatPt/Nafion-XC72asacatalystcanenhancethedurabilityofPEMFCscomparedwithPt/C.

简介：ExchangeServer2010引入了新的存档功能。借助存档功能，用户有了第二个邮箱——存档邮箱。存档邮箱与主邮箱位于相同的邮箱数据库中，可以通过Outlook客户端或OutlookWebAccess访问存档邮箱。存档邮箱与用户的主邮箱相关联，存档邮箱和主邮箱的管理机制相同。主邮箱的内容存储在OutlookOST缓存文件中，因此可以联机或脱机访问主邮箱：但用户本地机器不会对存档邮箱进行缓存，因此只能联机访问存档邮箱。

简介：在北中国的城市的加热说明40%全部的大楼精力用法。在中央加热系统，热被几热exchangers分别地在热来源，变电所和终端被安装的热网络经常从热来源转移到用户。为加热能力和热来源温度的给定的外套，增加终端液体温度是为精力节省改进如此的串联热交换网络的热表演的一个有效方法。在这份报纸，有在系列的三阶段的热exchangers的串联热交换网络的数学优化模型被建立。在为液体流动评估的给定的热液体温度和全面加热能力，最佳的热交换区域分发和媒介最大化冷液体温度的目的通过反的问题和变化方法被决定。初步的结果证明热交换区域应该为每热exchanger同等地是分布式的。以便改进整个系统的热性能也显示那，更多的热交换区域应该被分配到二液体之间的流动率差别是相对小的热exchanger。这个工作为指导加热系统的实际串联的优化设计是重要的。

简介：TheThreeGorgesProject(TGP)isaworldknownprojecttoutilizeandmanagethewaterresourcesoftheYangtzeRiver.Thereservoirstoreswaterattheendofthefloodseason,andreplenishesdownstreamreacheswithwaterindryseasons.Inadditiontosuchbenefits,theTGPhasirreversiblychangedthehydrologicalprocessandtheriver-lakerelationofthemiddleandlowerreaches.Inthispaper,ahydrodynamicmodelwasestablishedtoquantifytheimpactoftheTGP'soperationonthewaterexchangebetweenDongtingLakeandtheYangtzeRiverduring2009–2013.Theresultsindicatedthat:theoperationoftheTGPhasconsiderablyreducedthepeakdischargeandthefloodvolumeofthemainstreamandtheDongtingLakearea.TheinflowvolumefromtheYangtzeRivertoDongtingLakeviathreeoutletsdecreasedby1.9–3.5billionm3/yr,whiletheoutflowvolumefromDongtingLaketotheYangtzeRiveratChenglingjiincreasedby0.3–1.6billionm3inSeptemberand0.4–0.6billionm3inOctober,respectively.Thisresearchprovidesvaluableinformationforfloodcontrol,irrigation,andwaterallocationinthemiddleandlowerreachesoftheYangtzeRiver,andservesasatypicalcaseforinvestigatingtheimpactofotherhydropowerprojectsaroundtheworld.&2017InternationalResearchandTrainingCentreonErosionandSedimentation/theWorldAssociationforSedimentationandErosionResearch.PublishedbyElsevierB.V.Allrightsreserved.

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简介：Effectofdifferentshadinglevels(no-shading,80%shading,and40%shading)onphotosyntheticandstomatalresponsesincottonleaveswereinvestigatedunderconditionsofdifferentsoilwatercontentsinsummermidday.Allcottonleavesexhibitedsimilarbasicresponsestoshading,includingdecreasednetphotosyntheticrates,atendencytodecreaseintranspirationrates,andincreasedstomatalconductanceandintercellularCO2concentration.Theleafconductanceof80%shadedand40%shadedplantsincreasedby28%and16.7%comparedwithno-shadedplantsathighwater,respectively,butthenetphotosyntheticratesof80%shadedand40%shadedplantsdeclinedby50%and14.73%,respectively,Resultsshowedthatcombinedeffectofsoilmoistureandshadingonphotosyntheticandstomatalresponsesincottonleaveswasveryremarkable.

简介：2－Hydroxyethylacrylateissynthesizedfromacrylicacidandethyleneglycolunderasimpleandmildconditionbyusingstrongacidiccationionexchangeresinasacatalyst,whichcouldberecycledaslongas10timeswithhighactivation.

简介：2008年旱些时候，我讨论了所期待的微软公司的WindowsServer2008的Hyper—V技术支持ExchangeServer2007虚拟化，微软曾开始考虑在这件事情上给我们一些官方消息。2008年8月19日，微软公司最终室布其对运行虚拟化ExchangeServer2007SP1的支持策略。

简介：发生在夏天期间的分散的雨事件在半干旱的草地的生物活动的开始起一个重要作用。为了理解一棵buffel草(CenchrusciliarisL.)的生态系统过程怎么统治了草地，对夏天雨事件作出回应，LI6400煤气的交换系统被用来测量叶气体交换，植物华盖房间被用来测量网生态系统公司2交换(旧姓)并且生态系统呼吸(R在雨前在时期期间顺序被做的eco),(干燥)并且在雨以后(湿)。粗野生态系统光合作用(GEP)被估计从旧姓并且Reco流动，和轻使用效率参数用一个矩形的双曲线模型被估计。在季风雨以前，草地生物资源非绿、干燥展出积极旧姓(碳来源)并且低GEP在土壤水在哪个期间变得逐渐地少见期间珍视。起始的雨脉搏(60公里)从季风前层次增加了NEE到否定旧姓(碳获得)与显著地更高的GEP和增加的绿生物资源。有气孔的传导力也是的叶光合作用和叶实质地改善了。最大的网公司2举起(即，否定旧姓)由于多重雨事件在随后的时期被支撑。作为结果，草地在第一雨以后为20d充当了一个网碳水池。与雨(弄干的周期)的停止，网公司2举起被减少降低价值。到雨的这块草地的高敏感建议在在夏天的降水的任何减少可以多半影响半干旱的生态系统的碳隐遁。

简介：

简介：微软公司最近宣布WindowsServer2008R2将不支持ExchangeServer2007，这一决定引起了一些争议。Exchange管理员不禁要问：为什么一个目前仍在销售的产品却不被最新的操作系统支持？为了澄清其中缘由，Exchange产品团队在他们的博客上发表了一篇文章对这一决定做出了解释，整篇文章归纳起来可概括为两点：

简介：Aseriesofnovelamphibiousorganic/inorganichybridprotonexchangemembraneswithH3PO4dopedwhichcouldbeusedunderbothwetanddryconditionswaspreparedthroughasol-gelprocessbasedonacrylatedtriethoxysilane(A-TES)andbenzyltetrazole-modifiedtriethoxysilane(BT-TES).Thedual-curingapproachincludingUV-curingandthermalcuringwasusedtoobtainthecrosslinkedmembranes.Polyethyleneglycol(400)diacrylate(PEGDA)wasusedasanoligomertoformthepolymericmatrix.Themolecularstructuresofprecursorswerecharacterizedby1H,13Cand29SiNMRspectra.Thethermogravimetricanalysis(TGA)resultsshowthatthemembranesexhibitacceptablethermalstabilityfortheirapplicationatabove200oC.Thedifferentialscanningcalorimeter(DSC)determinationindicatesthatthecrosslinkedmembraneswiththemassratiosofbelow1.6ofBT-TEStoA-TESandthesamemassofH3PO4dopedasthatofA-TESpossessthe-Tgs,andthelowestTg(-28.9℃)existsforthemembranewithdoublemassofH3PO4dopedaswell.Thehighprotonconductivityinarangeof9.4―17.3mS/cmwiththecorrespondingwateruptakeof19.1%―32.8%ofthemembraneswasdetectedat90oCunderwetconditions.Meanwhile,theprotonconductivityinadryenvironmentforthemembranewithamassratioof2.4ofBT-TEStoA-TESanddoubleH3PO4loadingincreasesfrom4.89×10-2mS/cmat30℃to25.7mS/cmat140℃.Theexcellentprotontransportabilityunderbothhydrousandanhydrousconditionsdemonstratesapotentialapplicationinthepolymerelectrolytemembranefuelcells.

简介：Thispaperexaminestherelationshipbetweenstockmarket(KSE-100),moneymarket(M2and180daysT-billrate),andforeignexchangemarket(ER:PKR/USD)inPakistanbyusingmonthlydatacoveringtheperiodfrom2000:M1to2015:M12.Thestudyinvestigateslong-runequilibriumrelationshipbetweenthesethreefinancialmarketsbyemployingJohansenandJuselius[1]cointegrationtests.Long-runandshort-runcausalityrelationshipbetweenstockmarketandothermacroeconomicvariablesisalsoestablishedbyemployingvectorerrorcorrectionmodel(VECM)andpairwisegrangercausalitytests.Theresultsofmultivariatecointegrationtest(tracetest)indicateaonecointegratingvector,andthesignificantnormalizedcointegratingcoefficientsareevidentoflongrunequilibriumrelationshipbetweenalltheselectedvariables.NegativeandsignificantECT(-1)forallvariablesduringfullsampleperiodwitnessthepresenceoflong-runcausalityconnectionamongvariables,whileduringthemilitaryregimeanddemocraticregime,significantdifferenceoflong-runcausalconnectionsareidentifiedacrosstheregimes.Moreover,theresultsofgrangercausalitytestalsoindicatethattherearesignificantvariationsinthecausalityrelationshipamongvariablesacrosstheregimes.Therefore,itisessentialforforecasting,planningandpolicymakingtoconsidertheimportanceofpoliticalgovernancesystemwhileanalyzingthehistoricalcointegrationamongfinancialmarketandmakethenecessaryadjustmentsaccordingly.

简介：(phthalazinone醚sulfone酉同类)(CMPPESK)Chloromethylatedpoly被准备从(phthalazinone醚sulfone酉同类)(PPESK)poly与更低的毒性把chloromethyl辛基醚(CMOE)用作chloromethylated总督。CMPPESK是可溶的在N-methyl-2-pyrrolidone(NMP)，N，N-dimethylacetamide(DMAc)和氯仿。(phthalazinone醚sulfone酉同类)(QAPPESK)Quaternized被quaternizationpoly从CMPPESK准备。QAPPESK有优秀溶剂抵抗，它在硫磺的酸(98%)仅仅是部分可溶的并且在N肿，N-dimethylformamide(DMF)。用QAPPESK阴离子交换膜的钒氧化还原作用流动电池(V-RFB)最好有88.3%全面精力效率的性能。

简介：ＴｈｅｆｏｕｎｄｉｎｇｏｆｔｈｅＳｐｅｃｉａｌＣｏｍｍｉｔｔｅｅｏｆＳｅｉｓｍｏｌｏｇｉｃａｌＦｌｕｉｄｓ，ＳＳＣａｎｄｔｈｅＦｉｒｓｔＡｃａｄｅｍｉｃＥｘｃｈａｎｇｅＣｏｎｆｅｒｅｎｃｅｈｅｌｄｉｎＧｕｉｙａｎｇＴｈｅＳｐｅｃｉａｌＣｏｍｍｉｔｔｅ...

简介：空气鈥攕e的过程新鲜的水交换在在大气的科学和地球物理的液体动力学(LASG)的国家重点实验室开发的全球鈥?海洋鈥擜tmosphere陆地鈥擲y茎模型成功地被包括。联合集成的结果证明气候飘移成功地被控制了。在对表面的变化的海洋循环的回答上分析新鲜的水或在为咸度的流动状况下面的海洋旋转起来阶段是由空至海的新鲜的水流动联合的实现的关键的咸度强迫表演。这研究也证明nthly，omaly联合计划(MMFA)的鈥擣lux鈥擜n由于和张(1998)向前带了的修改鈥擬o对每日的空气鈥攕e合适不仅联合而且为每日的新鲜的水流动联合的热流动。关键词新鲜的水流动-由空至海的联合-Thermohaline循环这个工作被国家关键工程(资助No.96-908-02-03)共同支持，优秀国家关键实验室研究工程(资助No.49823002)和在资助鈥?白·仁·吉·胡亚下面的中国科学院(CAS)？为联合气候模型鈥的鈥淰alidation？

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简介：了解OutlookWebAccess（OWA）的众多改进，例如更加强壮的OWALight，个人分发列表（DL），以及对WebReady文档浏览新的或改进的支持，S/MIME，公共文件夹，每月日历，为用户提供了更好的Outlookwebmail客户端。