简介：<正>Communityforestryisaforestrydevelopmentandmanagementmodewithagriculturalcommunityasbasis,itisaforestmanagementorforestryproductionactivitydirectlyservingthelocalfarmersormainlyservingthem,andorganizedbylocalfarmersorpositivelyparticipatedbythem.Asacomprehensiveconceptionandmethodologysystem,communityforestryhasbeenimplementedsofarinanumberofdevelopingcountries.InChina’sofficialdocumentssuchasChinaAgenda21,thedevelopmentofcommunityforestryhasbeenofficiallyputforeword.

简介：

简介：HuanengShidongkouSecondPowerPlant(SSPP)issituatedonthesouthbankoftheYangtzeRivernearthenorthwestskirtsofShanghaiMunicipality.Itisasupercriticalpressurefossil-firedpowerplantof2×600MWcapacity.ThemainequipmentwereimportedfromtheU.S.,Switzerland.France.GermanyandCanada.41monthswerespentsincetheexcavationforfoundations,whichsym-bolizedthebeginningoftheconstruction,tillthefirstsynchronizationofNo.1UnitintothegridonJanuary16,1992.OnApril16,1992,the

简介：

简介：技术上导致的表面波浪的变细理论上并且试验性地被学习。在这篇论文，地面颤动的十九大小包括交通、振动、冲动的构造工作或堆积开车，爆炸，榔头推动和质量掉的道路和栏杆由八不同技术来源导致了被描述，并且技术上导致的地面颤动展出幂定律变细v锝?r，这被显示出?代表q在0.5～2.0的范围并且依靠消息提供者的q打字。执行的比较比理论上期望证明测量代表更加高。地面颤动变细上的一些潜在的效果理论上被分析。最重要的效果由于材料或散布抑制。每个频率部件作为exp指数地被稀释(?kr)，要不是宽带刺激，指数的法律的和也产出一条幂定律但是与一个高代表。另外的效果被讨论，例如瑞利的分散由于土壤layering飘动，它在冲动的装载的情况下产出0.5的一个另外的代表。关键词波浪变细-环境颤动-地测试-抑制的材料-散布抑制-瑞利波浪

简介：Therisksindevelopmentofnavyvesselswereexplored.Theresourcesoftechnicalriskinthedesignanddevelopmentofvesselswerementioned.Itwaspointedthattechnicalriskdominatedtheotherriskcomponents.Basedonthewriters'understandingandexperiencefromriskanalysisandriskmanagementtothedevelopmentofanavyvessel,fourmeasureindexesoftechnicalriskwerepresented.Thedecisioncriteriaandtherulescorrespondingtotheindexeswereestablishedbythestatisticinformation.

简介：Inordertoconstructobjectiverelativelymappingrelationshipmodelbetweencustomerrequirementsandproducttechnicalcharacteristics,anovelapproachbasedoncustomersatisfactionsinformationdiggingfromcaseproductsandsatisfactioninformationofexperttechnicalcharacteristicswasputforwardinthispaper.Technicalcharacteristicsevaluationvalueswereexpressedbyroughnumber,andtechnicalcharacteristicstargetsequencewasdeterminedonthebasisofefficiency,costtypeandmiddletypeinthismethod.UseeachcalculatedsatisfactionsofcustomersandtechnicalcharacteristicsasinputandoutputelementstoconstructBPnetworkmodel.AndweuseMATLABsoftwaretosimulatethisBPnetworkmodelbasedonthecaseofelectricbicycles.

简介：

简介：

简介：

简介：

简介：Thegoalofthispaperwastorevealthefeasibilityofchloromethylationofpolymersmadefromtechnicaldivinylbenzenesoastointroducefunctionalgroupsintopolymericadsorbents.Forthisstudy,thefactorsthateffectthechloromethylationreaction,suchastheporestructureofthepolymer,theratioofthereactantstocatalyst,thereactiontemperatureandreactiontimeandsoonwereinvestigated,andtheporestructureandpropertyofthechloromethylatedpolymerswerestudiedTheresultsshowedthatpolymersoftechnicaldivinylbenzenecouldbechloromethylatedsuccessfully,andtheadsorptivepropertyofthechloromethylatedresinwasdifferentfromthatoftheinitialresin.

简介：在重溶剂TDI生产过程递给估价的50kt/aTDI生产技术，50kt/aMDI工程技术和小说的开发和申请的学习由Gansu省的科技系组织了。根据估价委员会的意见，为为50kt/aTDI的生产的批评技术的开发和申请的工程与与国际技术水平为TDI单位的建设打一个稳固的基础的独立知识产权权利创造了这进程和技术软件包裹。

简介：WiththedeliveryofagreatdealremotesensingdatatolandfromLandsatconstantly,RemoteSensingSatelliteGroundStationaccumulatesabundantsatelliteremotesensingdata.Forlackofeffectivedatamining(DM)andknowledgeDiscoveryfromDatabases(KDDtechnique)tothesedata,mostpartoftheinformationcannotbeusedefficiently.TechnicalinnovationandimprovementofthetraditionalDMandKDD,studyofthedataminingandKDDwillbothincreasetheinterpretationlevelandintelligentized,andmoreoverexploreandutilizetheremotesensinginformationatthemaximumdegree.BasedonthetraditionaldataminingandKDD,theauthorsprobedthetechnicalflowofDMandKDDoftheremotesensing,designedthesystematicalframeworkofmulti-sourcesremotesensingDM,putforwardaprototypeEstablishedabaseforfurtherexploringandsystem.ofmulti-sourcesremotesensingDMsystem.developingmulti-sourcesremotesensingDMsystem.

简介：

简介：文章基于作者在中外合作建筑工程专业多年的教学实践，着重探讨了教师使用该教材进行双语教学的模式和学生学习英文课程的方法，进而提出使用英文课程提高教学效果相应的建议与对策。

简介：Inthispaper,atechnicalandstatisticalanalysisofsecuritysystemandsecuritymanagementisprovidedforcrowdenergyandsmartliving.Atthesametime,aclearunderstandingismadeforcrowdenergyconceptandnextgenerationsmartliving.Variouscaseexampleshavebeenstudiedandabriefsummaryhasbeenprovided.Furthermore,astatisticalanalysishasbeenprovidedintermsofsecuritymanagementinsmartlivingwhereitisfoundthatyoungtechnocratsgivethehighestimportancetosecuritymanagementinsmartliving.Lastbutnottheleast,currentlimitation,constraints,andfuturescopeofsecurityimplementationhavebeendiscussedintermsofcrowdenergyclusteredwithnextgenerationsmartliving.

简介：ThemaleicanhydrideesterificationprocessdevelopedbytheSINOPECFushunResearchInstituteofPetroleumandPetrochemicals(FRIPP)haspassedthetechnicalappraisalorganizedunderthesponsorshipofSINOPEC.Underap-

简介：

简介：SongkeWellNo.2,oneofthemainpartofthescientificdrillingprojectinSongliaoBasin,whichwasdrilled7018mandacquiredthepartofcorescontinuouslyfromtheLowCretaceoustotheCarboniferousandthePermianfromthe2843mdeep,canbeconsideredasthedeepestcontinentaldrillingprojectinAsia.Aimingatthefeaturesoflongerwellsections,largerdiametersandmultiplespud-insforcoringofSongkeWellNo.2,thisprojectbrokethroughthe"coringinsmalldiameterandreaminginlargediameter"spud-indrilling-completionprocedureswhicharealwaysusedinlarge-diameter-wellcoringforcontinentalscientificdrillingprojectsindomesticandoverseasandthedrillingmethodofshort-singlecylinderroundtripfootage.Atthesametime,"coringinthesamediameterandcompletingdrillingatonesinglediameter"wasachievedatallφ311mmandφ216mmcoringsectionsofmorethanonethousandmeterslong,high-efficientoperationwith"drillinglongfootagewithdrilltoolscombinedinmulticylinders"wasachievedatdeepcoringsection.Fourworlddrillingrecordswerecreatedwhichincludemorethanathousandmeterscontinuouscoringatφ311mm,andthefootageperroundtripfootageatφ311mm,φ216mmandφ152mmisallmorethan30m,allofthesebreakthroughsreducedatleast300daysforthisproject;moreover,consideringthecharacteristicsofformationsthatthegeothermalgradientishighinthedrilledsectionsandtheinside-welltemperatureisover240℃afterdrillingcompletion,aformate-polymerwater-basedmudsystemwasdevelopedbycompoundingattapulgiteandsodiumbentoniteandbyaddingindependentlydevelopedhigh-temperaturestabilizer,whichcanprovidecriticaltechnicalsupportforsuccessfulwellcompletionat7018minthesuper-high-temperatureenvironmentItisthefirsttimethatthewater-basedmudisoperatedattheworkingtemperaturehigherthan240℃inChina;Besides,consideringthehigh-qualityrequirementoncoresimposedbytheproject,themethod"mechanicalcor