简介：Thisisanaccountofthechangesinfunding,administration,andmanagementoftheBritishGeologicalSurvey(BGS),theoldestgovernment-fundedgeologicalsurveyintheworld,fromtheearly1980sto2000.Itwillintereststudentsofpublicadministration,historiansofscienceandgeologicalsurveys,andthosewhohavefollowedtheconvolutedrecenthistoryofBGS.PeterAllenhasrenderedamostvaluableserviceindocumentinganddescribingasaninsider(heonlyrecentlyretiredfromapositionasAssistantDirector)thestrugglestomaintaintheSurveyanditsprimeroleofdiscovering,

简介：可扩展的标注语言(XML)为在基于万维网的应用代表并且互换数据成为了事实上的标准。并且XML看法，为指定用户的一扇虚拟窗户，广泛地被使用了。在实际系统，当他们需要通过看法更新来源数据时，用户们遇到所谓的看法更改问题。很长时间，看法更改问题是在数据库社区的一个待研究的问题。与各种各样的数据模型的开发，相应看法更改问题广泛地被研究了。在这篇论文，我们介绍看法更改问题的概念。我们调查并且比较以前的途径。特别，我们强调语义的角色。在XML上下文集中于这个问题，我们给讨论并且建议一个框架，它在看法定义时间收集语义信息。为实现这个框架的一些相关技术进一步被介绍。

简介：ＳｕｒｖｅｙｏｎＣｈｉｎｅｓｅｗｅｌｄｉｎｇｃｏｎｓｕｍａｂｌｅｓ￥ＺＨＡＯＬｉｓａｎ（ＨａｒｂｉｎＲｅｓｅａｒｃｈＩｎｓｔｉｔｕｔｅｏｆＷｅｌｄｉｎｇ（１５００８０））Ａｂｓｔｒａｃｔ：ＩｎＣｈｉｎａ，ｔｈｅｍａｉｎｐｒｏｄｕｃｔｓｏｆｗｅｌｄｉｎ...

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简介：Thisisashortsurveyonosicllatoryintegraloperators.Wesummarizethemaindevelopmentandman-agingtechniquesofthefield,andgivesomeopenproblemsandmainreferencesintheend.

简介：TheprocessandcharacteristicsofChina'spopulationchangeareuniqueintheworld.Inthepast60years,Chinahasnotonlyexperiencedthepeaksandbustsofthesizeobirths,butalsotheradicalfluctuationofthetotalnumberofdeaths,andlargepopulationmigrationandmovementEspeciallyinthelast30yearsafter

简介：FromDecember1998toJune1999,theChinaMarketSupervisionundertheStateStatisticsBureauconductedsurveysontheconsumptiontrendsandlivesofChina’surbanresidentsamong5,000consumersin20cities,includingBeijing,Shanghai,Chengdu,Guangzhou,Wuhan,Naming,Qingdao,Dalia...

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简介：在反馈控制循环的通讯网络的插入做分析；一个网络控制系统的设计更复杂，；导致降级的一些问题控制系统的性能；甚至引起系统不稳定性。主要方面与导致网络的延期集中于网络控制系统(NCS)的稳定性分析，数据包退学学生，；多重包的传播。这些问题必须在NCS的设计被考虑。这个工作总结主要研究结果，；对一些相关处理途径评论；技术。调查的主要目的NCS是介绍新研究州的；指出未来工作的一些领域。

简介：Adigitalwatermarkingtechniqueisamulti-scientificdisciplinewhichisdevelopedrapidlyinlastseveralyearsfordigitalcontentprotection,suchascopyrightprotection,authenticationprotection,sourcetracing,etc.However,inrealisticscenarios,thedigitalwatermarkingsystemfacessignificantsecureissues,forexample,theattackerswanttoremove,detect,orembedillegalwatermarksignals.Therefore,theaimofthiscontributionistoillustraterecentresultsofrobustandsecurewatermarkingtothesignalprocessingcommunity,andhighlightbothbenefitsandstillopenissues.Specifically,thispaperisintendedtointroducetheconceptofsecureandrobustdigitalwatermarkingsystem,andprovidewithproblemsandtheircountermeasures.Firstofall,theclassicwatermarkmodelandcryptosystemwillbereviewedandthen,theconceptofsecureandrobustdigitalwatermarkingsystemwillbedescribed.Next,thewatermarkattackwillbeclassifiedanddescribed.Finally,somecountermeasuresthatcanhelptoimprovesecureandrobustnessareconsidered.IndexTermsCountermeasures,digitalwatermarkingsystem,robust,security,watermarkattacks.

简介：分析了符合统计要求的62篇关于肥胖的论文，发现常用治疗方法有针刺、针灸、电针、耳穴贴压、耳针、(耳穴)埋针、穴位敷贴、穴位埋藏及针灸配合其他疗法等；常用耳穴为胃、内分泌、神门、肺、脾、饥点和三焦，临床总有效率为75．8％。

简介：Thissurveyreviewstherecentdevelopmentofgradientdomainmeshdeformationmethod.Differenttootherdeformationmethods,thegradientdomaindeformationmethodisasurface-based,variationaloptimizationmethod.Itdirectlyencodesthegeometricdetailsindifferentialcoordinates,whicharealsocalledLaplaciancoordinatesinliterature.BypreservingtheLaplaciancoordinates,themeshdetailscanbewellpreservedduringdeformation.DuetothelocalityoftheLaplaciancoordinates,thevariationaloptimizationproblemcanbecastedintoasparselinearsystem.Fastsparselinearsolvercanbeadoptedtogeneratedeformationresultinteractively,oreveninreal-time.Thenonlinearnatureofgradientdomainmeshdeformationleadstothedevelopmentoftwocategoriesofdeformationmethods:linearizationmethodsandnonlinearoptimizationmethods.Basically,thelinearizationmethodsonlyneedtosolvethelinearleast-squaressystemonce.Theyarefast,easytounderstandandcontrol,whilethedeformationresultmightbesuboptimal.Nonlinearoptimizationmethodscanreachoptimalsolutionofdeformationenergyfunctionbyiterativeupdating.Sincethecomputationofnonlinearmethodsisexpensive,reduceddeformablemodelsshouldbeadoptedtoachieveinteractiveperformance.Thenonlinearoptimizationmethodsavoidtheuserburdentoinputtransformationatdeformationhandles,andtheycanbeextendedtoincorporatevariousnonlinearconstraints,likevolumeconstraint,skeletonconstraint,andsoon.Wereviewrepresentativemethodsandrelatedapproachesofeachcategorycomparativelyandhopetohelptheuserunderstandthemotivationbehindthealgorithms.Finally,wediscusstherelationbetweenphysicalsimulationandgradientdomainmeshdeformationtorevealwhyitcanachievephysicallyplausibledeformationresult.

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简介：ＳｕｒｖｅｙｏｎｂｉｏｌｏｇｉｃａｌｆｏｕｌｉｎｇａｎｄｃｏｒｒｏｓｉｏｎｏｆｖｅｓｓｅｌｓＩＮＴＲＯＤＵＣＴＩＯＮＳｉｎｃｅｔｈｅｓｔｅｅｌｓｈｅｌｌｖｅｓｓｅｌｓｃａｍｅｉｎｔｏｂｅｉｎｇ，ｂｉｏｌｏｇｉｃａｌｆｏｕｌｉｎｇａｎｄｃｏｒｒｏｓｉｏ...

简介：ＳｕｒｖｅｙｏｆＰｒｅｍａｒｉｔａｌＰｒｅｇｎａｎｃｙＩｎＳｅｖｅｎＰｒｏｖｉｎｃｅｓＴｈｅｒｅｉｓａｎｏｔａｂｌｅｉｎｃｒｅａｓｅｉｎｐｒｅｍａｒｉｔａｌｐｒｅｇｎａｎｃｙｉｎＣｈｉｎａ，ａｃｃｏｒｄｉｎｇｔｏａｓａｍｐｌｉｎｇｓｕｒｖｅｙｃｏｎｄ...

简介：ToassistyouinopeningupChina’smarket,China’sForeignTradeprovidesservicesofChina’smarketsurvey.1.SupplyingwrittenreportsonChina’smarkets1)China’ssteelmarket,2)China’stimbermarket,3)China’scementmarket,4)China’snon-ferrousmetalsmarket,5)China’sfertilizermarket,6)China’scerealsmarket,7)China’sapplemarket,8)China’s

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