简介：本文的基础是挪威初探井评价项目。这里概括了前面三篇论文的主要认识，目的是为改进勘探过程提供建议。这方面的主要建议有：·勘探目标应在含油气系统和成藏层带的背景下进行评价。·为了提高对油气体积不确定性的了解，应采用勘探目标的平面和垂向分块，同时在钻探以前对勘探目标的油气体积进行多种计算。·如果探井是干井，应使用决策树来确定干井原因。·要了解油气体积和勘探目标概率之间的联系。·确保勘探目标评价过程的一致性。·在为勘探目标的不同评价阶段提供报告时，应致力于形成无间隔的数据源链条。·勘探目标的评价应考虑其成藏层带的勘探成熟程度。·应不断更新挪威初探井评价数据库。

简介：OceanAlexander曾获美国游艇届最高殊荣——“2012国际媒体最顶级豪华游艇关注奖”，外观明快，内饰奢华，为客户提供了舒适的海上休闲空间。这也是海上亚历山大游艇在全球游艇界尖端地位的又一次完美体现。

简介：<正>WepresentatwistedversionoftheAlexanderpolynomialassociatedwithamatrixrep-resentationoftheknotgroup.ExamplesoftwoknotswiththesameAlexandermodulebutdifferenttwistedAlexanderpolynomialsaregiven.

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简介：'Stael-Holstein'(1897-1937)shouldbeamemorablenameinAsianacademicfield,butit'sapitythattodayithasbeenalmostforgottenbyus.HisfullnameinGermanisAlexandervonStael-Holstein.Andeversinceheinheritedhisbaronagein1897,everybody

简介：Background：Mathematicalmodelsproposeleglengthasalimitingfactorindeterminingthemaximumwalkingvelocity.Thisstudyevaluatedtheeffectivenessofaleglength-basedmodelinpredictingmaximumwalkingvelocityinanappliedracewalkingsituation,bycomparingexperiencedandnoviceracewalkersduringconditionswherestrictlynoflighttime（FT）waspermittedandinsimulatedcompetitionconditions（i.e.,FT〈40ms）.Methods：Thirty-fourparticipants（18experiencedandl6noviceracewalkers）wererecruitedforthisinvestigation.AnOptojumpNextsystem（8m）wasusedtodeterminewalkingvelocity,stepfrequency,steplength,groundcontacttime,andFTduringracewalkingoverarangeofvelocities.ComparisonsweremadebetweennoviceandexperiencedparticipantsinpredictedmaximumvelocityandactualvelocitiesachievedwithnoflightandvelocitieswithFT〈40ms.Thetechnicaleffectivenessoftheparticipantswasassessedusingtheratioofmaximumvelocitytopredictedvelocity.Results：Innovices,nosignificantdifferencewasfoundbetweenpredictedandmaximumwalkingspeedswithoutFTbuttherewasasmall5.8%gaininmaximumspeedwhenFT≤40ms.Inexperiencedracewalkers,therewasasignificantreductioninmaximumwalkingspeedcomparedwithpredictedmaximum（p〈0.01）anda11.7%gaininmaximumwalkingspeedwithFT〈40ms.Conclusion：Leglengthwasagoodpredictorofmaximalwalkingvelocityinnovicewalkersbutnotagoodpredictorofmaximumwalkingspeedinwell-trainedwalkerswhoappeartohaveoptimisedtheirwalkingtechniquetomakeuseofnon-visibleflightperiodsoflessthan40ms.Thegaininvelocityabovepredictedmaximummaybeausefulindexofracewalkingproficiency.