简介:基于在国际软件确定基准点标准组(ISBSG)仓库包含的数据的实验分析,这篇论文基于工程努力论述软件工程计划持续时间模型。持续时间模型为全部数据集并且为为个人计算机开发的工程的子集被造,中间范围并且大型机平台。持续时间模型也为比努力并且为要求努力的超过400人小时的工程的400人小时要求少数的工程被构造。作为第二个独立变量增加分配资源的最大的数字解释持续时间也被分析的实用性。从在功能的功能的尺寸削尖的工程直接造持续时间模型的机会也被调查。电子增补材料这件物品(doi:10.1007/s11390-007-9051-5)的联机版本contatins增补材料,它对授权用户可得到。
简介:Thedecisionsconcerningportfolioselectionforarmyengineeringandmanufacturingdevelopmentprojectsdeterminethebenefitofthoseprojectstothecountryconcerned.Projectsaretypicallyselectedbasedonexanteestimatesoffuturereturnvalues,whichareusuallydifficulttospecifyoronlygeneratedafterprojectlaunch.Ascenario-basedapproachispresentedheretoaddresstheproblemofselectingaprojectportfoliounderincompletescenarioinformationandinterdependencyconstraints.Inthefirststage,therelevantdominanceconceptsofscenarioanalysisarestudiedtohandletheincompleteinformation.Then,ascenario-basedprogrammingapproachisproposedtohandletheinterdependenciestoobtaintheprojects,whosereturnvaluesaremulti-criteriawithintervaldata.Finally,anillustrativeexampleofarmyengineeringandmanufacturingdevelopmentshowsthefeasibilityandadvantagesofthescenario-basedmulti-objectiveprogrammingapproach.
简介:TheSongkeNo.2well(easternhole)(referredtoasWellSK-2),oneofthe"twowellsandfourholes"oftheDeepContinentalScientificDrillingEngineeringProjectintheSongliaoBasin,isinAndaCity,HeilongjiangProvince,andwasofficiallycompletedonMay26,2018.TliescientificgoalsofWellSK-2coverfouraspects:paleoclimateresearch,resourceandenergyexploration,primarygeologicalresearch,anddevelopmentofdeepearthexplorationtechniques.Sincetheofficialcommencementofdrillingin2014,theWellSK-2scientificdrillingengineeringteamhasorganizedandimplementeddrillingforcoring,insitulogging,chemicalanalysisofcoreelements,anddeepstructuralexplorationaroundthewell.Currently,thefollowingpreliminaryscientificresearchprogresshasbeenmade:4334.81minsitucoredatahasbeenobtained;thecentimeter-levelhigh-resolutioncharacterizationofthemostcompleteandcontinuousCretaceouscontinentalstrataeverunearthedhasbeencompleted,andthestandardprofileofcontinentalstratahasbeeninitiallyestablished;theunconventionalnaturalgasresourcesandbasin-typehotdryrocksinthedeepSongliaoBasinwerefoundtohavegoodprospectsforexplorationanddevelopment;theclimaticevolutionaryhistoryoftheCretaceouscontinentalstratawasrebuiltforthefirsttime,coveringhundredsofthousandstomillionsofyears,andthemajoreventsofCretaceousclimatefluctuationshavebeendiscovered;alltheserevealstrongevidenceforthesubductionandaggregationofpaleo-oceanplates,providingatheoreticalbasisforthere-recognitionofthegenesisoftheSongliaoBasinandfordeepearthoilandgasexploration.TheimplementationoftheDeepContinentalScientificDrillingEngineeringProjectintheSongliaoBasinisofgreatsignificanceforexploringthemysteriesoftheEarthandsolvingmajorproblemssuchasthoserelatedtothedeepenergyenvironment.Itisasolidstepalongtheroadof"goingdeepintotheEarth".
简介:SubscriptionsEarthquakeEngineeringandEngineeringVibration(PrintISSN1671-3664,CN23-1496/Pwww.iem.net.cn/eeev)ispublishedbiannuallybytheChinaSciencePress.SubscriptionRatesVolume2,2005,2issues?80.00forinstitutionsand?60.00forindividualsformainlandofChina;andUS$80.00andUS$60.00(includingairmailpostage)forinsti-tutionsandindividuals,respectivelyforotherregions.
简介:Journalwebsite:http://www.springerlink.comAIMSANDSCOPEThisjournalisestablishedbytheInstituteofEngineeringMechanics(IEM),ChinaEarthquakeAdministration,topromotescientificexchangebetweenChineseandforeignscientistsandengineerssoastoimprovethetheoryandpracticeofearthquakehazardsmitigation,preparedness,andrecovery.Toaccomplishthispurpose,thejournalaimstoattractabalancednumberofpapersbetweenChineseand
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简介:ThisjournalisestablishedbytheInstituteofEngineeringMechanics(IEM),ChinaEarthquakeAdministration,topromotescientificexchangebetweenChineseandforeignscientistsandengineerssoastoimprovethetheoryandpracticeofearthquakehazardsmitigation,preparedness,andrecovery.
简介:Thisjournal,publishedbiannually,isestablishedbytheInstituteofEngineeringMechanics(IEM),ChinaEarthquakeAdministration,incooperationwiththeMultidisciplinaryCenterforEarthquakeEngineeringResearch(MCEER),UniversityatBuffalo,StateUniversityofNewYork,topromotescientificexchangebetweenChineseandforeignscientistsandengineerssoastoimprovethetheoryandpracticeofearthquakehazardsmitigation,preparedness,andrecovery.
简介:Thisjournal,publishedbiannually,isestablishedbytheInstituteofEngineeringMechanics(IEM),ChinaEarthquakeAdministration,incooperationwiththeMultidisciplinaryCenterforEarthquakeEngineeringResearch(MCEER),UniversityatBuffalo,StateUniversityofNewYork,topromotescientificexchangebetweenChineseandforeignscientistsandengineerssoastoimprovethetheoryandpracticeofearthquakehazardsmitigation,preparedness,andrecovery.
简介:Thisjournal,publishedbiannually,isestablishedbytheInstituteofEngineeringMechanics(IEM),ChinaEarthquakeAdministration,incooperationwiththeMultidisciplinaryCenterforEarthquakeEngineeringResearch(MCEER),UniversityatBuffalo,StateUniversityofNewYork,topromotescientificexchangebetweenChineseandforeignscientistsandengineerssoastoimprovethetheoryandpracticeofearthquakehazardsmitigation,preparedness,andrecovery.
简介:据说水利部将把是否利用Project软件进行项目管理,系统就按项目实际发生的数据进行整个项目计划的计算,阐明了 Project 软件在水利工程项目管理中的重要性
简介:精确地描绘工程的能力是到好工程的必需品管理。因此,一个新奇工程特征被开发那反映价值生长在一个工程以内。这典型、叫的工程整齐,以最新介绍的regular/irregular-indicatorRI被表示。挣的价值管理(EVM)的广泛地接受的管理系统为新特征的评估形成基础。更具体地,预报的EVM上的工程整齐的影响精确性被估计,并且被显示在预报的时间和费用重要。而且,这效果比工程的广泛地使用的特征,seriality由serial/parallel-indicator表示了SP的看起来强壮。因此,工程整齐能也作为一个输入参数为有用投射网络生成器。而且,工程整齐的介绍能向项目经理提供更多时间和是被期望因为的费用预报精确性的精确指示某个工程并且,相应地怎么一个工程应该被建立以便获得更可靠的预报在期间投射控制。