简介：-Thispaperadoptsapproximateformulasforresidualstressescausedbycoldbendingforplateswithstress-straincurveforma=Kn.Atypicaldistributionofthelongitudinalresidualstressduetoweldingisalsoassumed.Theeffectsofresidualstressduetocoldbendingandweldingonplasticbucklingofaxiallycompressedcylindricalshellsarestudiedbythefiniteelementmethod.

简介：Thereisadearthofinformationaboutthedistributionoftraceelementsinkerogenfromshalerocksdespiteseveralreportsontraceelementcompositioninmanyshalesamples.Inthisstudy,traceelementsinshalerocksandtheirresidualkerogensweredeterminedbyinductivelycoupledplasma–massspectrometry.Theresultsfromthisstudyshowredox-sensitiveelementsrelativelyconcentratedinthekerogensascomparedtotheshales.Thismaybeprimarilyduetotheadsorptionandcomplexationabilityofkerogen,whichenablesenrichmentinNi,Co,Cu,andZn.Fortherareearthelements(REEs),distinctdistributioncharacteristicswereobservedforshalesdominatedbyterrigenousmineralsandtheirkerogencounterparts.However,shaleswithlessinputofterrigenousmineralsshowedsimilarREEdistributionpatternstotheirresidualkerogen.ItisspeculatedthatthedistributionpatternsoftheREEsinshalesandkerogensmaybesourcerelated.

简介：Recentstudiesonassessmentofaverylowannualprobabilityofexceeding(APE)groundmotions,10-4orless,havehighlightedtheimportanceoftheupperboundofgroundmotionswhenverylowprobabilityresultsareacquired.Thetruncationleveladoptedinprobabilisticseismichazardanalysis(PSHA)shouldbedeterminedbyanaleatoryuncertaintymodel(i.e.,distributionmodel)ofgroundmotionsandthepossiblemaximumandminimumgroundmotionvaluesofaspecificearthquake.However,atthepresenttime,itisimpossibletoestablishtheupperboundmodelforgroundmotionsbasedonthesourcecharacteristicsand/orgroundmotionpropagation.McGuiresuggestedatruncationlevelbefixedatanumberof=6,orthedistributionofresidualsbetruncatedinsuchamannerthatsiteintensitycannotbegreaterthantheepicenterintensity.ThisstudyaimstofindareasonableandfeasibletruncationleveltobeusedinPSHAwhenthephysicalmechanismisnotavailabletofindtheextremegroundmotion.AmathematicalanalysisoftheinfluenceofthetruncationlevelonPSHA,casestudiesofsitesindifferentseismotectonicsettings,andadistributionanalysisofgroundmotionresidualsareconductedinthisstudy.Itisconcludedthat=4istheminimumacceptablevalueforengineeringapplicationsforAPEswithin0.002to10-4,andforlowAPEs,suchas10-5and10-6,thevalueofshouldbenolessthan5inmostregionsofChina.

简介：剩余的理论和方程明显的极化方法在这篇文章被建议并且描述。基于存在的矿的研究，剩余明显的极化\Gh\Gasy，从全体的导致水流的中间坡度的明显的极化\Gh\Ga和在已知的深Jiaojia类型金矿上的小电极空格计算，被显示了把矿的效果与在破裂地区从强烈改变的岩石产生的异常极化分开。关键词导致水流中间坡度-剩余明显的极化-深Jiaojia类型金矿-申请第一作者NiuRubao，高级工程师，执行地球物理的调查和研究并且被同意了撤营四次的等级3和等级4科学、工艺的奖金并且出版了大约十篇论文。

简介：Thequantitativeinterpretationofgravityanomaliesduetoshallowstructuresneedsseparationbetweenlongwavelengthanomalies(regionalanomalies)andshortwavelengthanomalies(residualanomalies).Theregional-residualfieldseparationcanbecarriedoutusingthepolynomialmethod.Inthiscase,theso-calledregionalfieldofordernistreatedasapolynomialofdegreen.Thepresentstudyshowsthatthedegreenmustvarybetweenasmallestvaluenminandamaximumvaluenmax.Thisarticlepresentsamethodtoprocessgravitydatathatallowsdeterminationofnminandnmaxforagivenstudyarea.WeapplythemethodtogravitydataoftheSouth-WestCameroonzone.Inthischosenstudyarea,wefindthatregionalanomalymapsofordersrangingfrom1to9andresidualanomalymapsofordersrangingfrom1to8canbeusedforsuitableinterpretation.Theanalysesshowthatonemayneedresidualanomalymapsofseveralorderstoperformsatisfactoryquantitativeinterpretationofthedifferentintrusivebodiesfoundinagivenarea.

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简介：尽管高分辨率能被电的记载提供，测量电的木头范围是狭窄的并且被限制接近井。地上凿穿表面电的潜在的大小能检测一个足够宽的范围，但是它的分辨率是有限的，特别地为有复杂的油和水分发或复杂结构的水库。在这研究，我们试图精确地由联合地上凿穿表面和crosswell定位3-D水库水和油分发电的潜力。首先，在垂直、水平的方向的油和水的分布被地上凿穿表面和crosswell检测电的潜在的方法，分别地然后测量crosswell潜力结果被用来校准测量地上凿穿表面改进垂直分辨率以便剩余油分发在有三种尺寸的更低的一半空间是坚定的电的潜在的数据。剩余油分发的评估被水库的模拟结果之间的差别的调查有或没有水泛滥获得。有限差别数字模拟结果证明空间剩余油分发能被联合crosswell和地上凿穿表面有效地决定电的潜力。

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