简介:Theutilizationofsedimentinreservoirsasresourcesisanefficientwaytoreducereservoirsedimentationandturndisadvantageintobenefit.Basedoneconomic,socialandecologicalfunctionsofsedimentresources,thispaperputsforwardatwo-layer,three-dimensionalevaluationindexsystem.ItalsoestablishessixdirectandindirectindicatorswiththeirformulastocalculatethecomprehensivebenefitsofsedimentutilizationintheXixiayuanreservoiroftheYellowRiverwithavolumeof2000m3.Theresultsshowthatsocialbenefitswouldbemoreprominent,withtheecologicalbenefitscomingsecond.ThisdemonstratesthattheindirectpublicvalueofutilizingthesedimentresourcesintheYellowRiverBasincanbefargreaterthanitsdirecteconomicvalue.
简介:Inthisarticle,itispointedoutthattheinformationnon-modifiabilityandinformation“fidelity”involvedin“informationdeterminacy”isamomentousrevolutioninepistemologicalconception.Byeliminatingtheconstrictionofquantitativestability,thereexistpeculiarinformationandperiodicityundernonlinearinstability.ThecommensurabilitybyWengWenbomaybeexplainedbyapplyingspecialcharactersofpeculiarinformation.Onevolutionofsubstance,thegeneralrulesforquantitativeanalysescannotbeextendedintoprocessofpeculiarinformation.Therefore,thecontemporaryscienceshavenotresolvedsomeimportantproblemsinevolutionofsubstancesuchas“time”,peculiarity,non-inertialsystem,andfabricatedinformationinquantitativeanalyses.Thenaturalcharactersandnon-modifiabilityofinformationhaveessentiallyprovedthatitisanepistemologicalmisunderstandingtoconsidertheinformationanalysisinmodern“informationscience”thesameasquantitativeanalysisinthecontemporarysciences.Thatis,“information”cannotbeidenticalto“quantity”.
简介:在土壤外壳开发的降雨事件运动的影响经由实验室实验和基于物理的水文学反应模拟被调查。流量和土壤水内容数据被分析以便在许多降水条件下面学习不同外壳的开发时期。当一个稳定的状态,能被雨点影响的一个扩大时期打破,被发现为外壳并且,随后存在时,结果证明显著地改变的外壳的形成玷污浸透的水力的电导率(K)和流量流量特征。在K的减少为下游动人的事件象86%一样高,并且72%为在上游动人的事件,说明降雨运动的方向比降雨紧张和持续时间在外壳形成上有更重要的影响。同样下游动人的降雨事件可以比那些移动有更大的效果在上游,在雨点影响前的一个depositional外壳的发展可以在决定最后的K价值起一个重要作用。
简介:Onthebasisofpreviousresearchandpractice,anewmodelsandBZYhasbeensuccessfullydeveloped.Experimentshavebeencarriedoutonitsproperties,includingunitweight,initiationvelocity,settlingvelocity,reposeangle,etc.TheexperimentsshowthattheBZYmodelsandhasmanymeritsoverothers,suchasadjustableunitweight,widerangeofparticlesize,particleshapesimilartonaturalsandandstablephysicalandchemicalproperties.Thusithashighvalueforstudy,developmentandextensionforapplication.Stillsomeofitspropertiesneedtobefurtherstudied
简介:ThetheoreticalconditionsforthebenddevelopmentorattenuationhavebeenreviewedandtestedforastudyreachoftheMeghnariver.Thefieldobservationsinthenaturalalluvialmeanderdonotsupportthetheoriesdevelopedforbenddevelopment.Thelimitationsofthetheorytoapplyinthenaturalmeanderingriverarediscussed.
简介:Ahighlyefficientflowdischargemeasuringmethodwasproposedinthisstudy.EitherthetraditionalvelocimetersortheAcousticDopplerProfiler(ADP)canbeusedtomeasurethemaximumflowvelocity,Umaxatthey-axis(verticalpassingthroughthemaximumpointvelocityinachannelcrosssection).Themeanvelocityofthecrosssection(U)wascomputedbyφUmax,whereφwasestimatedfromthefielddatacollectedwiththecup-typecurrentmeterusingthe"two-pointmethod".Theflowdischargewasthencomputedbymultiplyingtheestimatedflowareawith(U).Incontrasttothetraditionalmethod,whereflowdepthandflowvelocitymeasurementsareneededforeachvertical,theproposedmethodhastheadvantagesofshortoperationtimeandhighaccuracy.Thesefeaturesareespeciallyimportantforthemeasurementofunsteadyflow.
简介:高周波的地震数据部件能严重在unconsolidated在震波繁殖期间被稀释(低速度)层,导致减少的地震分辨率和signal-to-noise(S/N)比率。在这篇论文,基于维纳过滤器理论,首先,为近表面的吸收变细赔偿的反的过滤器计算被直接波浪的分析完成光谱从不同距离的部件接近表面。直接波浪被雷管产生在在洞射击上面并且被接收装置在表面上获得。空间地变化的反的过滤器被设计补偿因为3D的频率变细预先叠CRG(普通接收装置集合)数据。在把过滤器用于CRG数据以后,高频率部件被补偿,低频率维持了。地震决定和S/N比率与合成震动图更好被提高并且匹配并且更好满足地质的解释的需要。
简介:在在中国的Lianyungang的mudflows的rheological性质的试验性的研究被RS6000电流计执行,包括稳定、动态的大小。有从0.058~0.179的泥体积集中的范围的五件样品被调查。基于试验性的数据,一个Dual-Herschel-Bulkley模型被开发分析流动曲线并且插入内推静态、动态的收益压力。在稳定的测量,巩固时间和系统温度与低沉积卷集中为样品在rheogram和收益压力上看一些效果的结果表演,和效果逐渐地被加强,沉积卷集中增加。在一个shear压力下面扫,二个线性粘弹性的区域,出现粘滞并且有弹性的行为分别地,被发现。在有弹性的区域的复杂粘性,有弹性的模量和损失模量比那些在大几个数量级粘滞区域。而且,稳定、动态的rheological性质能被表示为沉积卷集中的适当指数的函数的试验性的数据表演的分析。
简介:Torecognizethegeographicalcharacteristicsofthelandslideareaswillbehelpfulforthewatershedmanagementinthereservoirwatershed.Accordingtothequantitativeanalysis,we'lltakedifferentscoresandweightingforthepotentialparametersofthelandslideareasintheTsengwenreservoirwatershed,andinthemeanwhile,we'llextractthedifferentfactors,includingtheslope,aspect,altitude,soilandgeologicaltexturesetc.,andtheresultsshownasmaximumone-dayrainfall,ratioofforestsandaveragereliefisthemostaffectingparametersonthepotentialriskmapoflandslideareas.