简介：Thestabilityofriverbankssubjecttoseepageisstudiedexperimentallyandtheoreticallyinthispaper.Byincludingseepageina3-dimensionaltheoreticalanalysis,thestudyfirstshowshowthecriticalslopeorangleofreposeofacohesionlessmaterialisrelatedtotheratioofthehydraulicgradientofseepagetoitscriticalvalueunderthefluidizationcondition.Thecriticalstableslopeisshowntoberelatedtonotonlythehydraulicgradientbutalsotheseepagedirection.Measuredlaboratorydatareasonablyfitwellwiththetheoreticalrelationshipforthecaseofinjectionandsuction.Thedatarevealthattheslopeisreducedwithinjectionandincreasedwithsuction,respectively.Additionally,thestudyidentifiestheseepagedirectionwhichresultsinaminimumcriticalstableslopeforacertainhydraulicgradientofseepage.

简介：Inthispaper,awavelet-filteredgenetic-neuro-fuzzy(WGNF)controlsystemdesignframeworkforresponsecontrolofahighwaybridgeundervariousearthquakeloadsisdiscussed.TheWGNFcontrollerisdevelopedbycombiningfuzzylogic,discretewavelettransform,geneticalgorithms,andneuralnetworksforuseasacontrolalgorithm.ToevaluatetheperformanceoftheWGNFalgorithm,itistestedonahighwaybridgeequippedwithhydraulicactuators.Itcontrolstheactuatorsinstalledontheabutmentsofthehighwaybridgestructure.Variousearthquakesusedasinputsignalsincludeanartificialearthquake,theEl-Centro,Kobe,NorthPalmSprings,TurkeyBolu,Chi-Chi,andNorthridgeearthquakes.ItisprovedthattheWGNFcontrolsystemiseffectiveinmitigatingthevibrationofthehighwaybridgeunderavarietyofseismicexcitation.

简介：当使遭到了到外部装载时，连贯的沉积展出非牛顿的复杂rheological行为和时间依赖者。这份报纸在稠密的连贯的沉积的三种类型的rheological性质上论述调查的结果，从长江的嘴镇定，在中国的Hangzhou海湾，和扬琴·莱克浅。一套rheological参数(包括粘性，收益应力，等等)基于与一个RheolabQC电流计被进行的实验被学习。流动曲线的大小，砍压力时间回答，和收益压力被做。稠密的连贯的沉积的稳固液体的转变在shear率斜面测试和shear压力斜面测试两个都发生了。这转变不是直接的，但是它被过渡变丑政体或压力高原调停。Herschel-Bulkley模型和Carreau模型能描述稠密的连贯的沉积，和实验表达式的rheological行为因为在这些模型计算参数被获得由一维并且回归分析。shear压力斜面测试并且由翼方法决定的收益压力被比较并且讨论。稠密的连贯的沉积的rheological性质上的水内容的影响被考虑。

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