简介：Thespectralcharactersofhydrocarbonsinsomeoil-bearingstrataandsoillayersoueroilandgasreservoirsintheJunggarBasinandnorthernTarimBasininXinjngarecomparedwiththoseofchemicallypurehydrocarbons.Thehydrocarbonsarecharacterizedbythebi-absorptionat2310nmand2350nm.Hydrocarbonandradioactiveanomaliesinoilandgasterrainsarefoundmuchmorewidespreadthancarbonatealterations.Basedonthespectraofheavyhydrocarbonsrelatedtooilbetween2270nmand2460nmandrefineddatatreatment,remotesensingmayholdencouragingpromiseasadirectlyprospectingtechniqueforoilandgasresources.

简介：Themainpurposeofthispaperistwo-fold:(i)togeneralizeanexistenceresultforacompressiblegas-liquidmodelwithafrictiontermrecentlypublishedbyFriisandEvje[SIAMJ.Appl.Math.,71(2011),pp.2014–2047];(ii)toderiveauniquenessresultforthesamemodel.Amainingredientintheexistencepartistheobservationthatwecanconsiderweakerassumptionsontheinitialliquidandgasmass,andstillobtainanexistenceresult.Comparedtotheabovementionedwork,werelyonamorerefinedapplicationoftheestimatesprovidedbythebasicenergyestimate.Concerningtheuniquenessresult,weborrowideasfromFangandZhang[NonlinearAnal.TMA,58(2004),pp.719–731]andderiveastabilityresultunderappropriateconstraintsonparametersthatdeterminerateofdecaytowardzeroattheboundaryforgasandliquidmasses,andgrowthrateofmassesassociatedwiththefrictiontermandviscouscoefficient.

简介：AhypereutecticAl-Sialloypowderwaspreparedbyultrasonicgasatomizationprocess.Themorphologies,microstructureandphaseconstituentofthealloypowderwerestudied.TheresultsshowedthatpowderofthealloywasveryfineanditsrnicrostructurewasmainlyconsistedofSicrystalsplusintermetalliccompoundAl9FeSi3,whichwere.veryfineanduniformlydistributed.

简介：Thispaperpresentstheresultsofourinvestigationsofbreakdownmechanisms,aswellasadescriptionoftheirinfluenceonthedistributionsoftimedelaydistributions,foragastubefilledwithnitrogenat4mbar.Thevaluesofthetimedelayaremeasuredfordifferentvoltages,andthevaluesoftherelaxationtimesandtheirdistributionsandprobabilityplotsareanalyzed.TheobtaineddensitydistributionshaveGaussiandistributionsandexponentialdistributionsfordifferentvaluesofrelaxationtimes(Gaussianforsmallvaluesandexponentialforlargevaluesofrelaxationtime).ItisshownthatformiddlevaluesofrelaxationtimethedelaydistributionshaveashapebetweenGaussianandexponentialdistributions,whichisaresultofthedifferentinfluencesofelectricalbreakdown.

简介：Withanalloycontentashighas80%ormore,Ni-basedOCTGisastrategicproductsrelatedtothestateenergysecurity,mainlyappliedintheexploitationanddevelopmentofsourgasfieldswithcomplicategeologicalformation,hightemperature,highpressureandseverecorrosivewellconditions.Ni-basedOCTGisregardedasthepipeproductwithmosthightechnologiesduetothecomplexityandgreatdifficultyinmanufacturingandrigorousrequirementsinqualitycontrol.Inthispaper,thetechnicalfeaturesandqualityrequirementsofNi-basedOCTGaresummarized,andthequalityandpropertiesoftheNi-basedOCTGproductsofBaosteelareintroducedindetail.WiththehelpofSEM,XPSandTEM,thecorrosionmechanismofNickle-basedOCTGintheenvironmentscontainingH2S,CO2,Cl-andelementarysuifurarealsoanalyzed.

简介：9月16日至17日,第三届全国应用地球物理学术研讨会在中国石油大学(北京)举行,来自全国15家单位的专家、老师和学生共80余人参加了本次研讨会。本次研讨会的主题为'油气地球物理探测'。会议由中国石油大学(北京)地球物理与信息工程学院肖立志院长主持,中国石油大学(北京)陈大恩副校长致欢迎词。本次一天半的研讨会共交流30篇学术报告,内容丰富,反映了本学科的最新进展,促进了应用地球物理学科交流与发展。

简介：在现在的调查，我们表明不连续的Galerkin的能力光谱为煤气的动力学的高顺序精确性计算的元素方法。为二原子价的燃烧引擎的一个天然气注射者的内部流动地在它的操作条件下面被调查。流动地和aeroacoustic噪音排出物的模拟在与试验性的数据的一个好协议。我们为不连续的Galerkin计划测试了几种捕获吃惊的技术。基于验证框架，我们在一个压缩天然气注射者的不同空缺过程期间分析了超声的喷气的发展。结果建议一个更渐渐的注射者空缺减少噪音排放。

简介：Turbulentreactingflowsinagenericswirlgasturbinecombustormodelareinvestigatedbothnumericallyandexperimentally.Intheinvestigation,anemphasisisplacedupontheexternalfluegasrecirculation,whichisapromisingtechnologyforincreasingtheefficiencyofthecarboncaptureandstorageprocess,which,however,canchangethecombustionbehavioursignificantly.Afurtheremphasisisplacedupontheinvestigationofalternativefuelssuchasbiogasandsyngasincomparisontotheconventionalnaturalgas.FlamesarealsoinvestigatednumericallyusingtheopensourceCFDsoftwareOpenFOAM.Inthenumericalsimulations,alaminarflameletmodelbasedonmixturefractionandreactionprogressvariableisadopted.Asturbulencemodel,theSSTmodelisusedwithinaURANSconcept.Computationalresultsarecomparedwiththeexperimentaldata,whereafairagreementisobserved.

简介：IntroductionTheelectrochemicalreductionofO2wasinvestigatedwidelyduringthepasttwodecades.O2-canreactwithvariousorganiccompounds.O2-asanewsynthesisreagenthasbeenbeingexplored.

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简介：我们讨论使用控制来源的可行性电磁(CSEM)在为勘探海洋的煤气的水合物的频率领域。把腿164日志数据基于钻节目(ODP)的海洋，我们建立了抵抗力建模有不同煤气的水合物集中的几1-D。同时，我们基于这些模型在频率领域分析了海洋的煤气的水合物的电磁的反应。我们也学习了在象接收装置传输器距离和频率那样的电的fi高龄大小或阶段和参数之间的关系。我们的数字建模结果为探索和海洋的煤气的水合物的资源评估向我们提供一本量的参考书。

简介：Numericalsimulationofgas-solidflowinatwo-dimensionalfluidizedbedwithaninclinedjetwasperformed.Thenumericalmodelisbasedonthetwo-fluidmodelofgasandsolidsphaseinwhichthesolidsconstitutiveequationsarebasedonthekinetictheoryofgranularflow.TheimprovedICEalgorithm,whichcanbeusedforbothlowandhigh-velocityfluidflow,wereusedtosolvethemodelequations.Themechanismofjetformationwasanalyzedusingbothnumericalsimulationsandexperiments.Theemergenceandmovementofgasbubbleswerecapturednumericallyandexperimentally.Theinfluencesofjetvelocity,nozzlediameter,nozzleinclinationandjetpositiononjetpenetrationlengthwereobtained.Asemi-empiricalexpressionwasderivedandtheparameterswerecorrelatedfromexperimentaldata.Thecorrelationequation,whichcanbeeasilyusedtoobtaintheinclinedjetpenetrationlength,wascomparedwithourexperimentaldataandpublishedcorrelationequations.

简介：Wavelengthmodulationtechnique(WMT)andactiveintracavitytechnique(ACIT)arefirstintroducedinthispaper,whichareusedtorealizetheconcentrationdetectionofmethaneandacetylenerespectively.WhenACITiscombinedwithwavelengthsweeptechnique(WST),thedetectionsensitivityofacetylenecanbeenhancedsharply.WhenACITiscombinedwithWSTandWMT,thedetectionsensitivityofacetylenecanbeenhancedfurther.

简介：解救小伙伴奇奇被不明身份者绑架了，大家正欲上前解救她。突然，峥嵘发现了危险。是什么危险呢？巧填数字峥嵘给宁宁出了这么一道难题：你能将数字1—9分别填入黄色小圆圈，使每个大圆圈内四个数之和都相等、两条对角线上的三个数字之和也相等吗？

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简介：有一次，美国钢铁公司第一任总裁查尔斯·史考伯手下的一名工厂经理来向他讨教，因为他的员工一直无法完成他们分内的工作。

简介：在安国寺吃茶缓缓转动手中的茶杯一杯禅茶骤然穿过尘世红尘滚滚的喧嚣

简介：一枝迎春花初春的早晨，一枝迎春落在墙边的石板上，铁青的石板刚刚在春风中铺上柔软的青苔这一枝迎春，似乎懂得在寒风中坦然接受自己坠落的命运

简介：神秘的黑衣人原来是一个叫雷利的坏蛋，他正在实施一个恐怖的阴谋。正当大家想要抓住他的时候，他却开启遥控置换装置消失了。