简介：ThepurposeofthispaperistostudytheRSdatawebservicesandrelatedsubjectsofdatastorageanddatamanagement.Basedonananalysisofthepresentsituationanddevelopmenttrendofstorageandmanagementofrasterdataandwebservicetechnology,amanagementandservicesystemarchitectureforRemoteSensingrasterdatabasedonwebservicetechnologieswasdeveloped,theimplementationmethodologiesofthekeytechnologyofthesystemwereexploredandaprototypeofthesystemwasillustrated.

简介：Withcontinuouslystrengthenedcharacteristicssuchaswhole-familymigrationandlong-termresidenceofthemigrantpopulation,theirneedsforbasicpublichealthandfamilyplanningservicesbecomemoreurgent.However,serviceutilizationhasbeenrelativelyinadequateandpressureonlocalpublicserviceandsupplyissubstantialinareaswithhighmigrantpopulationdensity.Inrecentyears,

简介：Engineeringandresearchteamsoftendevelopnewproductsandtechnologiesbyreferringtoinventionsdescribedinpatentdatabases.EfficientpatentanalysisbuildsR&Dknowledge,reducesnewproductdevelopmenttime,increasesmarketsuccess,andreducespotentialpatentinfringement.Thus,itisbeneficialtoautomaticallyandsystematicallyextractinformationfrompatentdocumentsinordertoimproveknowledgesharingandcollaborationamongR&Dteammembers.Inthisresearch,patentsaresummarizedusingacombinedontologybasedandTF-IDFconceptclusteringapproach.Theontologycapturesthegeneralknowledgeandcoremeaningofpatentsinagivendomain.Then,theproposedmethodologyextracts,clusters,andintegratesthecontentofapatenttoderiveasummaryandaclustertreediagramofkeyterms.PatentsfromtheInternationalPatentClassification(IPC)codesB25C,B25D,B25F(categoriesforpowerhandtools)andB24B,C09GandH011(categoriesforchemicalmechanicalpolishing)areusedascasestudiestoevaluatethecompressionratio,retentionratio,andclassificationaccuracyofthesummarizationresults.Theevaluationusesstatisticstorepresentthesummarygenerationanditscompressionratio,theontologybasedkeywordextractionretentionratio,andthesummaryclassificationaccuracy.Theresultsshowthattheontologybasedapproachyieldsaboutthesamecompressionratioaspreviousnon-ontologybasedresearchbutyieldsonaveragean11%improvementfortheretentionratioanda14%improvementforclassificationaccuracy.

简介：微软公司低调推出了最新的WindowsSharePointServices3．0，它带给广大企业的价值竟然远远没有得到应有的注意。众多新特性。包括对工作流的支持、集成Outlook、博客技术、Wiki、数字版权管理。还有每个人都求之若渴的项目级安全性等。最重要的是这一切都是免费的……

简介：Background:Forestecosystemsareincreasinglyseenasmulti-functionalproductionsystems,whichshouldprovide,besidestimberandeconomicbenefits,alsootherecosystemservicesrelatedtobiologicaldiversity,recreationalusesandenvironmentalfunctionsofforests.Thisstudyanalyzedtheperformanceofeven-agedrotationforestmanagement(RFM)continuouscoverforestry(CCF)andany-agedforestry(AAF)intheproductionofecosystemservices.AAFalowsbotheven-agedanduneven-agedmanagementschedules.Theecosystemservicesincludedintheanalyseswerenetpresentvalue,volumeofharvestedtimber,cowberryandbilberryyields,scenicvalueoftheforest,carbonbalanceandsuitabilityoftheforesttoSiberianjay.Methods:Dataenvelopmentanalysiswasusedtoderivenumericalefficiencyratiosforthethreemanagementsystems.Efficiencyratioisthesumofweightedoutputs(ecosystemservices)dividedbythesumofweightedinputs.ThelinearprogramingmodelproposedbyCharnes,CooperandRhodeswasusedtoderivetheweightsforcalculatingefficiencyscoresforthesilviculturalsystems.Resultsandconclusions:CCFprovidedmoreecosystemservicesthanRFM,andCCFwasmoreefficientthanRFMandAAFintheproductionofecosystemservices.Multi-objectivemanagementprovidedmoreecosystemservices(exceptharvestedtimber)thansingle-objectivemanagementthatmaximizedeconomicprofitability.Theuseoflowdiscountrate(resultinginlowcuttinglevelandhighgrowingstockvolume)ledtobettersupplyofmostecosystemsservicesthantheuseofhighdiscountrate.RFMwhereNPVwasmaximizedwithhighdiscountrateledtoparticularlypoorprovisionofmostecosystemservices.InCCFtheprovisionofecosystemserviceswaslesssensitivetochangesindiscountrateandmanagementobjectivethaninRFM.

简介：Watershedsprovideavarietyofecologicalservicesincludingsoilandwaterconservation,carbonsequestrationandbiodiversityprotection.However,activitiesinafast-growingeconomysignificantlyimpactthesupplyanddemandofthesewatershedservices.Tomitigatetheseimpacts,theconceptofpaymentforenvironmentalandecosystemservicesfromwater-shedshasemergedinglobalacademicandpolicycircles.ThegovernmentsandacademiccommunitiesinChinahaveincreas-inglydescribedpaymentsforecologicalservicesfromwatershedswiththeconceptofwatershedeco-compensationasitisurgenttoprotectwatershedecosystems.Watershedeco-compensationhasprovedtobeoneofthemosteconomicallyeffectivemeansofsolvingenvironmentalproblemsofwatershedstobeadoptedbytheChinesegovernment.ThispaperpresentsanobjectiveanalysisoftheChinesemarketforwatershedecosystemservices,includingsupplyanddemandfortheservices.ItalsosummarizesChinesepoliciesonwatershedeco-compensation,includingrelevantlawsandregulationsandfiscalpolicies.Inaddition,itpresentsare-viewofChinesepracticesinwatershedeco-compensation,in-cludingtheanalysisofanecologicalconstructionprojectinWest-ernChina,inter-provincialwatershedeco-compensationpracticesandplans,andpaymentforecologicalservicesattheprovincialandsmallwatershedlevels.Finally,itsummarizesthekeycom-ponentsoftheprocessofpaymentinChinesewatershedeco-compensation.Thisdiscussionformsthebasisofconcludingsuggestionsforecosystemservicescompensationandecologicalprotectioninthelargescaleriverbasin.

简介：Accordingtodifferencesinvegetationtypesandtheircoverage,combiningthelatestresearch,usingtheoryandmethodonthevalueofvegetationecosystemservices,thispapernotonlycalculatedgoodsproducedbydifferenttypesofvegetationbutalsoestimatedthevalueofvariousvegetationecosystemservicesandsetupdatabase,GISandeco-accountofvegetationecosystem.Theresultwasasfollows:thevalueofvegetation''sprimaryproductivity,soilandfertilityconservation,waterconservation.CO2fixationandO2releasewas199.6billionyuan/a22.64billionyuan/a22.6billionyuan/a,352.24billionyuan/aand374.19billionyuan/a,respectively.Thetotalvalueofecosystemserviceswas968.33billionyuan/a.Thetemperatedeciduousbroad-leavedforesthadthehighestcontributionrate,accountingfor16.42%,Theresultofvaluecanreflectregionalrealitymoreexactly.

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简介：Fourenvironmemtalservicefunctionsofwheat,barleyandrapeecosystemareevaluatedinmaterialproduction,airadjustment(includingcarbondioxidefixationandoxygenreleaseinTibetanAutonomousRegion),waterconservation,andnutrientrecycling.Basedonittheeconomiclossofenvironmentduetodesertificationisvalued.TheresultsshowthattheservicefunctionsoffarmlandecosysteminTibetaretotallyvaluedat4436.2×106yuan,thevalueofeachservicefunctionisorderedas:airadjust...

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简介：Ofthemanyservicesthatforestsprovide,hydrologicalservicesareamongthemostvaluable,anditbecomesmorescarcewiththegrowingdemandsbyhumanbeings.Asakindofincentivemeasureforprotectingforest,foresthydrologicalservicesmarketshavebeendevelopedinmanycountriesaroundtheworldandsomevaluableexperienceshavebeenachieved.Thepaperreviewstheexperimentscarriedoutintheworldandtheirresearchfindingsonforesthydrologicalservicesmarket,andpresentstheissuesto...

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简介：这份报纸建议一个本体论驱动的发现模型让地理信息服务改进他们的召回比率和精确比率。这个模型使用地理信息服务本体论。在这份报纸，首先，我们学习匹配地理信息服务的算术的multilevel。这算术被用于根据选择的服务和从功能类似的定义请求的服务的类似和信用站类似在服务收款机中心过滤并且匹配服务。匹配的算术，地理信息服务本体论和语义描述组成发现模型。最后，我们从召回比率，精确比率，responsivity和负担平衡测试并且分析模型。结果显示本体论驱动的发现模型在召回比率和精确比率是优秀的，并且能维持服务拷贝的动态负担平衡。

简介：随着互联网的不断发展，企业对跨平台的系统需求越来越迫切，而新的网络应用技术构架WebServices技术的出现，为企业应用集成的发展提供了崭新的模式．通过介绍WebServices的主要技术及其应用构架，并结合具体的实例阐述了WebServices构架技术在企业上的应用及前景．

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简介：Forestmanagementinseveralborealcountriesisstronglyfocusedonconifersbecausetheyaremoreproductive,thetechnicalqualityoftheirstemsisbetter,andtheirwoodfibersarelongerascomparedtobroadleaves.Favoringconifersinforestmanagementleadstosimpleforeststructureswithlowresilienceanddiversity.Suchforestsareriskyinthefaceofclimatechangeandfluctuatingtimberprices.ClimatechangeincreasesthevitalityofmanyforestpestsandpathogenssuchasHeterobasidionspp.andIpstypographusL.whichattackmainlyspruce.Winddamagesarealsoincreasingbecauseofashorterperiodoffrozensoiltoprovideafirmanchorageagainststorms.Wind-throwntreesserveasstartingpointsforbarkbeetleoutbreaks.Increasingtheproportionofbroadleavedspeciesmightalleviatesomeoftheseproblems.Thisstudypredictsthelong-term(150years)consequencesofcurrentconifer-orientedforestmanagementintwoforestareas,andcomparedthismanagementwithsilviculturalstrategiesthatpromotemixedforestsandbroadleavedspecies.Theresultsshowthat,intheabsenceofdamages,conifer-orientedforestrywouldleadto5-10%highertimberyieldsandcarbonsequestration.Thesomewhatlowercarbonsequestrationofbroadleavedforestswascounteractedbytheirhigheralbedo(reflectance).Mixedandbroadleafforestswerebetterprovidersofrecreationalamenities.Speciesdiversitywasmuchhigherinmixedstandandbroadleaf-orientedsilvicultureatstandandforestlevels.Theanalysisindicatesthatconifer-orientedforestmanagementproducesrathersmallanduncertaineconomicbenefitsatahighcostinresilienceanddiversity.

简介：在漫步无线环境在用户，无线网络，和服务供应商之中提供相互的认证，这篇文章介绍一个匿名的认证和存取控制协议。这个协议上的底，不同信任领域的实体能互相证实对方并且保存用户的匿名。混合cryptosystem，切开的秘密，和回锅肉丁链在协议被使用，它减少计算负担并且为两个实体建立信任关系。建议协议与另外的协议相比有最少的计算复杂性，而，安全显著地被改进了。

简介：Itiswidelyrecognizedthatexchange,distribution,andintegrationofbiologicaldataarethekeystoimprovebioinformaticsandgenomebiologyinpost-genomicera.However,theproblemofexchangingandintegratingbiologicaldataisnotsolvedsatisfactorily.TheeXtensibleMarkupLanguage(XML)israpidlyspreadingasanemergingstandardforstructuringdocumentstoexchangeandintegratedataontheWorldWideWeb(WWW).WebserviceisthenextgenerationofWWWandisfoundedupontheopenstandardsofW3C(WorldWideWebConsortium)andIETF(InternetEngineeringTaskForce).ThispaperpresentsXMLandWebServicestechnologiesandtheiruseforanappropriatesolutiontotheproblemofbioinformaticsdataexchangeandintegration.

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