简介：comeacross意为“偶遇，碰见”。

简介：

简介：

简介：

简介：

简介：Atpresent,asWesterneconomiesslowdowninasynchronizedmanner,emergingeconomiesarealsobeingconfrontedwithdifficulties.ThedirectionoftheworldeconomywillprimarilybedeterminedbywhethertheU.S."fiscalcliff"canbeaddressedsmoothlyandwhetherthesovereigntydebtcrisiscanbeeffectivelycontrolledintheshort-term.Inthelong-termthedirectionoftheworldeconomywilldependonwhetheranewtechnologicalrevolutionwillmakebreakthroughachievements.

简介：ThispaperfocusesonstudyinglongdistancetransferenceofheightdatumacrossseasbycombiningellipsoidalheightderivedfromGPSwithgravimetricgeoidheight.TheYellowSeaHeightDatumistransferredtoYangshanIslandwhichis30kmawayfromLuchaoganginShanghai.Thestationsheightsderivedinthiswayarecomparedwiththosedeterminedfromtwoindependentsetsofthetidalobservationstakenintwoyears,andthedifferencevaluesare1.0cmand6.0cm,respectively.Moreover,thederivedheightdifferencesbetweentwosectionsontheislandarealsocomparedwiththevaluesderivedfrompreciselevelingwithrespecttothesamesection.Theresultshowsthattheinconsistenciesareonly0.2cmand0.7cm,respectively.

简介：为越过在象文件同步那样的应用程序的宽区域网络(广域网)的文件通讯的数据deduplication并且云环境反射通常完成以数据deduplication的重要时间开销的成本节省的重要带宽。时间开销包括在二个地理上分布式的节点为数据deduplication要求的时间(例如，磁盘存取瓶颈)并且在发送者之间的复制质问/答案操作和接收装置，后来，每询问或答案介绍至少一个潜伏的双程的时间(RTT)。在这份报纸，我们在场越过有元数据反馈和元数据利用(MFMU)的广域网的一个数据deduplication系统，联系了时间开销以便利用数据deduplication。在建议MFMU系统，到发送者的从接收装置的选择元数据反馈被介绍减少复制质问/答案操作的数字。另外，到马具，元数据在接收装置联系了磁盘I/O操作，以及带宽开销由元数据反馈介绍了，磁滞现象哈希值重新组合机制基于的元数据利用部件被介绍。我们的试验性的结果证明MFMU与保存没被元数据反馈减少的比率的带宽完成了20%40%deduplication加速的一般水准，当与基线相比内容定义组合(CDC)在LBFS(Low-bandwith网络文件系统)使用，组合算法的退出的最先进的Bimodal基于数据deduplication解决方案。

简介：

简介：TheHimalayan-Tibetanorogenistheyoungestandarguablymostspectacularofallthecontinent-continentcollisionalbeltsontheEarth.Therearenotonlynorth-southextrusionsbutalsoeast-westextensionsintheTibetanPlateau.AllthesephenomenaaretheresultsoftheIndianplatesubductingintotheEurasiaplateabout70Maago

简介：Overlastfewyears,webservices,Java2andXMLhaveprovidedthecheapermeansfortradingpartnerstomakeuseofEDI.ItisnowpossibletosharedatawithlessrelianceonexpensivededicatedEDInetworks.ThesecondcomestherealizationthatProductDefinitioncanbereusedbyvirtuallyallbusinessprocessesdownstream.Thishasmadecollaborativeproductdevelopmentapracticalreality.ThesetechnologieshaveenabledeffectiveimplementationofProductLifecycleManagement(PLM)Solutions.ThispaperpresentsaliteraturereviewaboutPLMsolutions,lookingatitsdefinitions,throughtoitsneedandscopeofapplications.Italsopresentsthemostgenerallyenvisagedarchitecture,explainingastohowitmaybelookedatandwhatitisexpectedtodeliver.AttheenditexaminesthemarkettrendandrevenuegrowthoverrecentyearsincludingfuturetrendsforthemostprominentvendorspitchedinthefieldofPLMsolutions.

简介：Humankinddrawsimportantbenefitsfromlarge-scaleecologicalprocessestermedecosystemservices,yetthestatusofseveralofthemisdeclining.Reliablemonitoringmethodsareessentialfortrackingthestatusofecosystemservices.Predationisthemainstayofnaturalpestcontrol,akeyecosystemservice.Weusedgreenplasticinecaterpillarstomonitorpredationpressure,andtoobtainbaselinedataonpredatoractivityintransgenicBtversusnon-BtmaizefieldsinOldandNewWorldcountries.Predationpressurewasmeasuredatgroundandcanopylevelsusinganidentical,small-plotexperimentaldesigninfourEuropeancountries(Denmark,Slovakia,RomaniaandItaly)andArgentina.Totalpredationrateinmaizewasll.7%d^-1(min.7.2%d^-1inArgentina,max.29.0%d^-1inRomania).Artificialcaterpillarswereattackedbothbyinvertebrates(mostlychewinginsectswith42.0%oftheattackmarks,andantswith7.1%,butalsopredatoryandparasitoidwasps,spidersandslugs),andvertebrates(smallmammals25.5%,andbirds20.2%).Totalpredationatgroundlevel(15.7%d^-1)wassignificantlyhigherthaninmaizecanopies(6.0%d^-1)inallcountries,exceptArgentina.WefoundnosignificantdifferencesbetweenpredatorpressureinBtversusnon-Btmaizeplots.Theartificialcaterpillarmethodprovidedcomparable,quantitativedataonpredationintensity,andprovedtobesuitableformonitoringnaturalpestcontrol.Thismethodusefullyexpandstheexistingtoolkitbydirectlymeasuringecologicalfunctionratherthanstructure.

简介：Aland-lockedstatethreetimesthesizeofFranceborderedbyRussiatothenorthandChinatothesouth,Mongoliaisfarawayfrommoderatingmaritimeinfluences.Afterashort,pleasantsummer,whenthetemperaturecangoupto30degrees,thelongwintercanproduceJanuarytemperaturesbelow-40inthecapitalUlanBator.Thisismuchcolderthanwouldbeexpectedforalatitudeof47degreesNorth.Amajorfactorinthisisthewindwhich,whenitblowsfromthenorth,canquicklylowertemperatures.

简介：ThispapermakesaprobeintotheapplicationoftheKalmanfilteringmethodtothedataprocessingofacross-faultmeasurements.Onthebasisofstatisticalregression,themathematicandstochasticmodelsoffiltrationareestablishedbycombiningtheregressionmethodwithKalmanfiltering.Inthefilteringcomputation,notonlytherandomnessoffaultmovementsbutalsothetime-dependentvariationofenvironmentaleffectshavebeentakenintoconsideration.Byuseoftheadaptivefilteringmethod,anestimationofthedynamicnoisevariancematrixisobtainedthroughiteration.Modelsforonemeasuringline(levelinglineorbaseline),twomeasuringlines(bothlevelinglinesorbothbaselines)andfourmeasuringlines(twolevelinglinesandtwobaselines)arederivedandestablishedsystematically.Bymeansofthesemodels,thedataofacross-faultmeasurementscanbeprocesseddynamicallyinreal-timetoprovidethefilteredvaluesofheightdifferencebetweenbenchmarksorbaselinelengthatdifferenttimein

简介：TheoverallobjectiveoftheObamaadministration'spolicytowardtheTaiwanStraitregionremainstomaintainthestatusquoofcross-Straitrelations,i.e.,neitherreunificationnorindependence.ThebottomlineoftheU.S.governmentinsuppor-

简介：

简介：Breastcancerisoneofthemostcommonlydiagnosedmalignanciesandtheleadingcauseofcancerdeathofwomenovertheworld.AlargenumberoffemaleswithbreastcancerinVietnamandotherSoutheastAsian(SEA)countriespresentatanearlyagewithmoreaggressivetumorscomparedwithwomeninAustralia.Despiteexperiencingalowincidencerate,theincreasingincidencerateamongSEAcountriesexceedsthatoftheWesternizedworld.Changesinreproductivefactors,environmentalexposures,andlifestylearethepossiblecausesofthistrend.However,limitedevidenceshowsthatthesefactorsareassociatedwithbreastcancerintheVietnamesepopulation.BreastcancerincidencerateswithinVietnamarenotuniformandappeartobedependentongeographiclocation.FindingsfromthisreviewhaveimportantimplicationsforbreastcancercontrolandtreatmentinVietnam.AgoodunderstandingofthemorphologyofthebreastandthetypeandnatureofbreastcancerspresentinginVietnamisrequiredtofacilitatetheintroductionofaneffectivenationalbreastscreeningprogram.

简介：

简介：

简介：<正>AttheinvitationoftheChineseAssociationforInternationalUnderstanding(CAFIU),CrownPrinceTupouto’a’UlukalalaandCrownPrincessSinaitakalaoftheKingdomofTongavisitedChinafromDecember8toDecember14,2014.