简介：Thisstudyinvestigatestheeffectivenessofthenon-smoothsemi-activecontrolalgorithmonsuppressingthevibrationperformanceofabuildingstructuresubjectedtoseismicwaves.AccordingtotheLyapunovstabilitytheory,ithasbeneproventhatthenon-smoothsemi-activecontrolalgorithmcanachieveafinite-timestabilityofthevibrationrelativetotheisolationlayerofabuildingstructure.Throughnumericalsimulationoftwobuildingswithdifferentparameterssubjectedtotheinputofaseismicwave,thevibrationconditionsofpassivecontrol,LQRsemi-activecontrolandnon-smoothsemiactivecontrolarecomparedandanalyzed.Thesimulationresultsshowthatthenon-smoothsemi-activecontrolalgorithmhasabetterrobustnessandeffectivenessinrestrainingtheimpactofearthquakesonthestructure.

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简介：TheYellowRiveristhecradleofChina.Ithadlongbeenthecenterofpolitics,economicsandcultureofChinainhistory.LargecoverageflooddisasteroccurredfrequentlyintheYellowRiverbasinandthelosseswereoftenheavy.Thus,theYellowRiverisalsoconsideredastheserioushiddendangerofChina.SincethefoundingofnewChina,structuralandnon-structuralsystemsoffloodcontrolhavebeenestablishedbasically.Tremendoussuccesseshavebeenmadeonfloodcontrol.Intothe21century,floodcontrolstandardoftheLowerYellowRiverhasbeenincreasedsignificantlywiththeoperationoftheXiaolangdiReservoir.However,problemsoftheYellowRiverarecomplicatedandthetasksforsolvingtheseproblemsarearduous.Particularly,thesedimentationproblemcan'tbesolvedcompletelyinthenearfuture.Thesituationof"suspendedriver"andthreatoffloodwilllongexist.Therefore,supportedbyrapidsocialandeconomicaldevelopmentofthenationandreliedonadvancedtechnology,thefloodcontrolsystemshallbeperfected.Meantime,studyoftheYellowRivershallbeenhancedinordertobetterunderstandtheflood,getwithitanduseitthustoreduceflooddisaster.

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简介：Landresourcesarefacingcrisesofbeingmisused,especiallyforanintersectionareabetweentownandcountry,andlandcontrolhastobeenforced.Thispaperpresentsadevelopmentofdataminingmethodforlandcontrol.Avector-matchmethodfortheprerequisiteofdataminingi.e.,datacleaningisproposed,whichdealswithbothcharacterandnumericdataviavectorizingcharacter-stringandmatchingnumber.Aminimaldecisionalgorithmofroughsetisusedtodiscovertheknowledgehiddeninthedatawarehouse.Inordertomonitorlandusedynamicallyandaccurately,itissuggestedtosetupareal-timelandcontrolsystembasedonGPS,digitalphotogrammetryandonlinedatamining.Finally,themeansisappliedintheintersectionareabetweentownandcountryofWuhancity,andasetofknowledgeaboutlandcontrolisdiscovered.

简介：Ageo-referenceisaglobalorregionalgeographicalorgeodeticcoor-dinatesystemtowhichsensorsorspatialobjectdataarerelated.Hence,geo-ref-erencingisclosetothewellknownphotogrammetricconceptofexteriororabso-luteorientation,thecommonexecutionofwhichisindirect,viatheuseofgroundcontrolpoint.GPSandINStechnologieshavechangedthesituation,permittingdirectmeasurementofpositionandattitudeparametersandmakingexteriororien-tationfeasiblewithoutgroundcontrolatall,inprinciple.Theanalysisofaccuracyandreliabilityperformancediscloses,however,thatespeciallyINSdoesnotyetmeetthehighdemandsofphotogrammetry.Moreover,controlofsystematicer-rors,theproblemofdatumtransformation,andreliabilityconditionsmaketheuseofsomegroundcontrolpointsstillmandatory,atleastforanyhighperfor-mancegeo-referencing.

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简介：大木质的碎片和木质的植被能对隧道水力学和形态学施加主要影响，在特别地更小(<30m宽)溪流。尽管碎片和植被长被用于河槽冲刷和沉积控制，为设计者的科学地基于的指南是少见的。最近

简介：在这篇论文，半活跃可变僵硬(SVS)设备习惯于电报的参量的颤动的运动的参量的刺激，和方程与这台SVS设备引起的减少电报摆动被介绍。开／关控制算法被用来操作SVS控制设备。有SVS设备的电缆线的颤动反应数字地在频率和时间域并且为参量、古典的回声颤动条件为许多另外的僵硬联合被学习。数字研究进一步考虑电报下垂效果。从数字结果，SVSdevice有效地压制电报回声颤动反应，这被显示出，并且当设备的僵硬增加，设备完成颤动的更大的抑制。而且，SVS设备在电报下面增加刺激的批评轴的排水量，这被显示出参量的颤动条件。

简介：TheHydrobiosinDongpingLake,ShandongProvince,mainlyincludesphytoplankton,zooplankton,benthicanimals,fishesandhydrophyticvascularplants.Nitrogenandphosphorusaretherestrictivefactorsforthegrowthandpropagationofhydrophyta,thereforethekeytothepreventionandcontrolofeutrophicationinlakesliesinthecontrolofthecontentsofthetwoelementsinthewater.Artificialfishingofalgaecanreducetheconcentrationsoftrophicsubstancessuchasnitrogenandphosphorusinthewaterbodies,andbiologicalmeasuresmaydecreasethecontentsofthesetrophicsubstancesinthebottomsedimentsandthewaterbodies,therebyplayinganactiveroleinmodifyingtheeutrophicationofthelake.

简介：为了加速暴露的山崩区域，为土壤的hydroseeding和水保存的重新植被，广泛地作为经济地可行的方法之一被使用了。然而，不同hydroseeding材料的效果持续时间是不同的，明确的表达密度在生长和addictives可以渗出的植物上有某个效果。这份报纸论述土壤侵蚀的实验室实验，渗出由使用有斜坡，降雨紧张和药密度的不同条件的一个降雨模拟器的水质量和土壤坚硬。结果证明土壤侵蚀显著地减少了，建议由通风和不透水的树脂的好抵抗侵蚀的效果。渗出的水的重要变化都没在测试期间被观察，它显示在gelling以后，通风和不透水的树脂是不大可能的释放化学物质。高树脂密度将象高费用一样导致差的可使用性，这被发现；后来由于雨点断裂的mudstone击碎的不利愿望原因是普通的玷污表面。在在植物植被上喷洒和它的效果以后的weatherability需要仍然推进调查。

简介：ThispaperdiscussestheapproachesforautomaticalsearchingofcontrolpointsintheNOAAAVHRRimageonthebasisofdatarearrangementintheformoflatitudeandlongitudegrid.Thevegetationindextransformationandmulti-levelmatchingstrategieshavebeenproveneffectiveandsuccessfulastheexperimentsshowwhilethecontrolpointdatabaseisestablished.

简介：IceformationintheharboursinarcticregionsuchasinFinlandisaprobleminwintertimes.Theairbubblersareoftenusedforcontrollingthegrowthoficeneartheharbourpierwalls.Thispapergivesanin-depthdescriptionoftheharbouriceproblemandtheapplicabilityofthebubblers.Anumericalmethodofflowandheat-transferisusedtopredicttheeffectivenessoftheairbubblersincontrollingtheiceaccumulationintheharbours.Empiricalmodelsofformattingandmeltingtheicearepresentedandusedinthenumericalsolutions.Itshowsthatthenumericalmethodcanrealisticallypredicttheice-meltingeffectoftheairbubblers.

简介：Recentobservationssupportanemergingparadigmthatclimatevariabilitydominatesnutrientenrichmentincostaleco-systems,whichcanexplainseasonalandinter-annualvariabilityofphytoplanktoncommunitycomposition,biomass(Chl-a),andprimaryproduction(PP).Inthispaper,wecombinedobservationandmodelingtoinvestigatetheregulationofphytoplanktondynamicsinChesapeakeBay.Theyearwechoseis1996thathashighriverrunoffandisusuallycalleda’wetyear’.A3-Dphysical-biogeochemicalmodelbasedonROMSwasdevelopedtosimulatetheseasonalcycleandtheregionaldistributionsofphytoplanktonbiomassandprimaryproductioninChesapeakeBay.Basedonthemodelresults,NO3presentsastrongcontrasttotherivernitrateloadduringspringandthehighestconcentrationinthebayreachesaround80mmolNm-3.Comparedwiththenormalyear,phytoplanktonbloominspringof1996appearsinlowerlatitudeswithahigherconcentration.Quantitativecomparisonbetweenthemodeledandobservedseasonalaverageddissolvedinorganicnitrogenconcentrationsshowsthatthemodelproducesreliableresults.Thecorrelationcoefficientr2forallquantitiesexceeds0.95,andtheskillparameterforthefourseasonsisallabove0.95.

简介：Whitespotsyndromevirus(WSSV)isoneofthemajorshrimppathogenscausinglargeeconomiclossestoshrimpfarming.Inanattempttoidentifytheenvelopeproteinsinvolvedinthevirusinfection,purifiedWSSVvirionsweremixedwiththreeantiseraagainstWSSVenvelopeproteins(VP39,VP124andVP187),individually.Andthentheywereinjectedintramuscularlyintocrayfish(Procambarusclarkii)toconductinvivoneutralizationassays.TheresultsshowedthatforgroupsinjectedwithvirionsonlyandgroupsinjectedwiththemixtureofvirionsandantiserumagainstVP124,thecrayfishmortalitieswere100%and60%onthe8thdaypostinfection,individually.ThevirusinfectioncouldbedelayedorneutralizedbyantibodyagainsttheenvelopeproteinVP124.QuantitativePCRwasusedtofurtherinvestigatetheinfluenceofthreeantiseradescribedaboveonthevirusinfection.TheresultsshowedthattheantiserumagainstVP124couldrestrainthepropagationofWSSVincrayfish.AlloftheresultssuggestedthattheviralenvelopeproteinVP124playedaroleinWSSVinfection.

简介：-thymosins,高度保存的肽的一个家庭，起一个重要作用在愈合创伤，angiogenesis，抗菌剂过程和抗病毒的免疫。三新奇-thymosin-repeat蛋白质，命名mjthm4，mjthm3和mjthm2，从抑制用表示顺序标签(EST)从Marsupenaeusjaponicus被克隆减少性的杂交。拥有的mjthm4，mjthm3和mjthm2cDNAs打开编码了166，128和90的读的框架氨基酸残余多肽并且包含了四，三和二-thymosin肌动朊绑定模块分别地。强风分析证明mjthm4，mjthm3和mjthm2与已知的无脊椎的多重复-thymosins分享了高相同。这些蛋白质无所不在地检验纸巾在所有被表示，并且transcriptional层次在肠是最高的。进一步的调查表明mjthm4，mjthm3和mjthm2是显著地起来调整的在WSSV感染以后的6h。而且当mjthm4transcriptional层次没显示变化时，mjthm3和mjthm2层次在病毒抵抗的虾减少了。结果显示mjthm4，mjthm3和mjthm2是新奇多重复-thymosin相当或相同事物，与WSSV感染有一种靠近的关系，并且可能贡献在虾的主人防卫或病毒侵略相互作用的更好的理解。

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简介：常规洪水操作规定的应用程序在南部的中国由于对Pubugou水库的洪水控制规则的不够的描述被限制。基于不同洪水控制对象的要求，这份报纸建议由响应洪水流入预报和水库水水平定义洪水控制规则的不同参数与惩罚机制优化洪水控制规则。一个基因算法为解决参数优化问题被采用。下游地不够的洪水控制能力的失败风险和溢出体积通过水库操作政策被估计。结果证明一条优化规定能比当前的洪水控制规则提供更好的性能。

简介：这篇论文由使用可得到的加速大小在模型参数与不确定性为结构的系统论述一条柔韧的H_∞输出反馈控制途径并且为如此的一个柔韧的输出反馈控制器的存在建议条件。结构的僵硬的不确定性，抑制并且集体参数被假定围住标准。建议控制途径在线性矩阵不平等，存在凸的优化技术例如在MATLAB的LMI工具箱，能有效地并且方便地为被使用的框架以内被提出。说明建议的柔韧的H_∞策略的有效性，一座六故事的大楼两个都受到1940ElCentro地震记录并且到突然应用的Kanai-Tajimi过滤白噪音随机刺激。结果证明建议的柔韧的H_∞控制器向令人满意的结果提供或没有结构的僵硬的变化，抑制并且集体参数。