简介：许多有缺点的雷达回响可以用雷达数据应用，特别雷达数据吸收和量的降水估计引起严重问题。在这研究，测试模式在CINRAD(中国新一代天气雷达)由测试信号或雷达硬件失败引起了SA和SB雷达运作的观察被调查。为了把测试模式与雷达回响的另外的类型区分开来，例如降水，清除空气和另外的非气象学的回响，包括有效反射率数据百分比(RZ)的五个特征参数，速度RF(合拢的范围)数据百分比(RRF)，失踪的速度数据百分比(RM)，平均沿着方位角反射率变化$\left({R_{N_{r，Z}}}\right)$并且平均沿着横梁反射率变化$\left({R_{N_{一，Z}}}\right)$被建议。基于模糊逻辑方法，一个测试模式鉴定算法被开发，并且从雷达回响的所有不同类型的统计结果显示算法的表演。有在测试模式内定位的重降水回响的二个典型箱子的分析被执行。统计结果证明测试模式鉴定算法表现很好，自从测试模式在大多数情况中被认出。而且，算法能有效地移开测试模式信号并且在重降雨事件保留强壮的降水回响。

简介：The32ndInternationalConferenceonCoastalEngineering(ICCE2010),thefirstofitskindeverheldinthemainlandofChina,wasconvenedonJune30toJuly5,2010,inShanghai,China.650delegatesfromover40countriesand16institutionalexhibitorsparticipatedinthisgreatevent.

简介：小浪变换(WT)方法被采用了把一个原来的地球物理的信号分解成关于象毛孔液体，岩性学，和毛孔结构那样的水库特征包含不同信息的一系列部件。我们基于WT精力系列分析，反映水库液体性质的信号部件被提取开发了一个新方法。我们成功地用这个方法在华中从一块油地处理了真实木头数据。水库液体鉴定的结果同意井测试的结果。

简介：Apreviouslydevelopedmodelofa2-dimensionalairflowwithconstanthorizontalshearisusedtoestimeatetheaccuracyofthegeostrophicmomentumapproximationbycomparisonofexactsolutionswhenexistwithapproximateones.

简介：Adiatomwaspurifiedwithcolonyselectionandcontinuousdilutionmethods.ItwasidentifiedtoCylindrothecaclosteriumaccordingtoitsmorphologicalcharacteristicsandrbcLand18srRNAgenesequences.Thealgawasnotsensitivetoampicillinandneomycin,butsensitivetochloramphenicolwhichinhibiteditsgrowthatconcentrationsrangingfrom50to150μgmL-1.Thepurifiedalgawaseasytocultureanditsspecificgrowthratewas0.207±0.002(d-1).Itwasresistanttopollutionandcouldbeharvestedinaneasyway.Itwasrelativelyhighinlipidcontent(20.08%±0.67%ofdryweight)andthecombinedamountofits16:0and16:1(n-7),themostsuitableresourceofbiodiesel,wasashighas64%ofthetotalfattyacids,whiletheamountofpolyunsaturatedfattyacidsreached19.96%–20%ofthetotalfattyacids.ThusthepurifiedC.closteriumcanbeculturedasabiodieselproduceroranutritionsupplementproducer.

简介：Reconnaissancereportsandpertinentresearchonseismichazardsshowthatliquefactionisoneofthekeysourcesofdamagetogeotechnicalandstructuralengineeringsystems.Therefore,identifyingsiteliquefactionconditionsplaysanimportantroleinseismichazardmitigation.Oneofthewidelyusedapproachesfordetectingliquefactionisbasedonthetime-frequencyanalysisofgroundmotionrecordings,inwhichshort-timeFouriertransformistypicallyused.Itisknownthatrecordingsatasitewithliquefactionaretheresultofnonlinearresponsesofseismicwavespropagatingintheliquefiedlayersunderneaththesite.Moreover,Fouriertransformisnoteffectiveincharacterizingsuchdynamicfeaturesastime-dependentfrequencyoftherecordingsrootedinnonlinearresponses.Therefore,theaforementionedapproachmaynotbeintrinsicallyeffectiveindetectingliquefaction.AnalternativetotheFourier-basedapproachispresentedinthisstudy,whichproposestime-frequencyanalysisofearthquakegroundmotionrecordingswiththeaidoftheHilbert-Huangtransform(HHT),andoffersjustificationfortheHHTinaddressingtheliquefactionfeaturesshownintherecordings.Thepaperthendefinesthepredominantinstantaneousfrequency(PIF)andintroducesthePIF-relatedmotionfeaturestoidentifyliquefactionconditionsatagivensite.Analysisof29recordeddatasetsatdifferentsiteconditionsshowsthattheproposedapproachiseffectiveindetectingsiteliquefactionincomparisonwithothermethods.

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简介：ThispaperbrieflyintroducestheSeismotectonicMapofXinjianganditsneighborhoodinthescaleof1∶2500000.Themapisamended,supplementedandexpandedbasedofthenewlycompiledSeismotectonicMapofXinjianginscale1∶1000000.ThebasemapofthisseismotectonicmapisthegeologicmapofwesternChinaanditsneighborhoodcompiledbyLiTingdong.Theabundantnewmaterialsfromrelatedresearch,referentialliteraturesandtheanalysesonremotesensingdatawereusedinthecompilingwork.Adatabaseandrelevantdocumentsarebuiltfornearly300activefaultsand150activefolds.Thebasicinformationofthemajoractivefaults,especiallythoseneartheborderareasinthismapareintroducedinthispaper.

简介：Followingabriefhistoryandprogressofionosphericresearch,thispaperpresentsabriefreviewoftherecentdevelopmentsintheunderstandingoftwomajorphenomenainlowandmidlatitudeionosphere—theequatorialionizationanomaly(EIA)andinvolvedequatorialplasmafountain(EPF)andionosphericirregularities.Unliketheeasy-to-understandmisinterpretations,theEPFinvolvesfieldperpendicularE×Bplasmadriftandfield-alignedplasmadiffusionactingtogetherandplasmaflowinginthedirectionoftheresultantatallpointsalongthefieldlinesatallaltitudes.TheEIAisformedmainlyfromtheremovalofplasmafromaroundtheequatorbytheupwardE×Bdriftcreatingthetroughandconsequentlythecrestswithsmallaccumulationofplasmaatthecrestswhenthecrestsarewithin~±20°magneticlatitudesandnoaccumulationwhentheyarebeyond~±25°magneticlatitudes.ThestrongEIAundermagneticallyactiveconditionsarisesfromthesimultaneousimpulsiveactionofeastwardpromptpenetrationelectricfieldandequatorwardneutralwind.Intenseionosphericirregularitiesdevelopinthepost-sunsetbottom-sideequatorialionospherewhenitrisestohighaltitudes,andevolvenonlinearlyintothetopside.Pre-reversalenhancement(PRE)oftheverticalupwardE×BdriftanditsfluctuationsamplifiedduringPREprovidethedrivingforceandseed,withneutralwindandgravitywavesbeingtheprimarysources.AtlowsolaractivityespeciallyinsummerwhenfastvaryingPREisabsent,theslowvaryinggravitywavesincludinglargescalewaves(LSW)seemtoactasbothdriverandseedforweakirregularities.Atmidlatitudes,theirregularitiesareweakandassociatedwithmediumscaletravelingionosphericdisturbances(MSTIDs).AlowlatitudeminimumintheoccurrenceoftheirregularitiesatMarchequinoxpredictedbytheoreticalmodelsisidentified.TheminimumoccursonthepolewardsideoftheEIAcrestandshiftsequatorwardfrom~25°magneticlatitudesathighsolaractivitytobelow17°atlowsolaractivity

简介：圈套蛋白质是一组联系膜的蛋白质深奥inexocytosis，分泌物和膜在真核细胞的房间的交通国王事件。关于圈套蛋白质生物学的研究在最近的年里成为了一个更吸引人的领域，它明确地被用于海洋生物学到鱼Tilapia(Oreochromis尼罗河我们)。包括大脑，肝胰，肠，皮和肌肉，Tilapia的不同纸巾的血浆膜部分被提取、与到SNARE家庭的isoform特定的抗体装饰andimmuno、联系蛋白质。Syntaxins-1A,的存在2和3，脆裂声-23并且脆裂声-25，补片-2,Munc-18-1并且在大脑的Munc-13被识别，它是在鱼Tilapia的另外的机关纸巾散布的差别。圈套和联系蛋白质的不同分发将在鱼的这些纸巾用作进一步的调查的基础进他们的特殊能分泌的功能。

简介：这篇论文论述一个新算法由改变形式的参数在结构预言损坏的地点和严厉。损坏察觉的一个存在算法被考察，新算法被提出改进损坏由在存在算法消除乖僻的假设和限制定位和严厉评价的精确性。当适用于为哪个预先损坏的two-dimensionalframe结构时，损坏预言精确性数字地为每个算法被估计，损坏以后的形式的参数为仅仅颤动的一些模式是可得到的。当时，分析结果说明新算法的改进精确性与存在算法相比。

简介：ＡＬＡＢＯＲＡＴＯＲＹＴＥＳＴＦＡＣＩＬＩＴＹＦＯＲＳＯＬＡＲＲＡＤＩＡＴＩＯＮＩＮＳＴＲＵＭＥＮＴＳＡＮＤＩＴＳＡＰＰＬＩＣＡＴＩＯＮＳ￥ＬｕＷｅｎｈｕａ（吕文华）ａｎｄＭｏＹｕｅｑｉｎ（莫月琴）ＡＬＡＢＯＲＡＴＯＲＹＴＥＳＴＦＡＣＩＬＩＴＹＦＯＲ...

简介：Thispaperdealswithasimulatedtestofbiogenicmineralizationmadewithablue-greenalgaspecies,Spirulinaplatensix.Thedataintheexperimentwererecordedbyacomputerizedsurveyingsystem.Theinflu-enceofalgaeontheaccumulationofphosphorusbychangingtheirmicroenvironmenttopromotetheforma-tionanddepositionofphosphatewasstudied.TheresultsshowthatthepHvalueofculturalliquorroseupto10andtheredoxpotential（Eh）maydropby100-200mVduringthealgallogarithmicgrowthstage,andthecultrualliquorwaschangedintoamediumwithaweaklyreducingcondition.AttheendofthelogarithmicgrowthstagewhitedepositsofNa2Ca（CO3）2·5H2OandCa2Mg（PO4）2·2H2Owereformedonthefloorofculturalcontainers.Thetestpresentedawduableevidenceforthetheoryofbiogenicmineralization.

简介：Thisstudytestedfivemethodswidelyusedinestimatingthecompletemagnitudes(MC)ofearthquakecatalogs.Usingcatalogsofobservedearthquakeproperties,wetesttheperformanceofthesefivealgorithmsunderseveralchallengingconditions,suchassmallvolumeofeventsandspatial-temporalheterogeneity,inordertoseewhetherthealgorithmsarestableandinagreementwithknowndata.Wefindthatthemaximumcurvaturemethod(MAXC)hasperfectstability,butwillsignificantlyunderestimateMCunlessheterogeneityisabsent.MCestimatedbytheb-valuestabilitymethod(MBS)requiresmanyeventstoreachastableresult.Resultsfromthegoodnessoffitmethod(GFT)wereunstablewhenheterogeneityloweredthefitnesslevel.Theentiremagnituderangemethod(EMR)isrelativelystableinmostconditions,andcanreflectthechangeinMCwhenheterogeneityexists,butwhentheincompletepartoftheearthquakecatalogisdismissed,thismethodfails.Themedian-basedanalysisofthesegmentslopemethod(MBASS)cantoleratesmallsamplesize,butisincapableofreflectingthemissingdegreeofsmalleventsinaftershocksequences.InconditionswhereMCchangesrapidly,suchasinaftershocksequences,observingthetimesequencedirectlycangiveapreciseestimationofthecompletesub-catalog,butonlywhenthenumberofeventsavailableforstudyislargeenoughcantheMAXC,GFT,andMBSmethodsgiveasimilarlyreliableestimation.

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简介：Theobjectiveofthisstudyistoidentifysystemparametersfromtherecordedresponseofbaseisolatedbuildings,suchasUSChospitalbuilding,duringthe1994Northridgeearthquake.Fullstatemeasurementsarenotavailableforidentification.Additionally,theresponseisnonlinearduetotheyieldingofthelead-rubberbearings.Twonewapproachesarepresentedinthispapertosolvetheaforementionedproblems.First,areducedorderobserverisusedtoestimatetheunmeasuredstates.Second,aleastsquarestechniquewithtimesegmentsisdevelopedtoidentifythepiece-wiselinearsystemproperties.Theobserverisusedtoestimatetheinitialconditionsneededforthetimesegmentedidentification.Aseriesofequivalentlinearsystemparametersareidentifiedindifferenttimesegments.Itisshownthatthechangeinsystemparameters,suchasfrequenciesanddampingratios,duetononlinearbehaviorofthelead-rubberbearings,arereliablyestimatedusingthepresentedtechnique.Itisshownthattheresponsewasreducedduetoyieldingofthelead-rubberbearingsandperiodlengthening.

简介：四海洋的cyanobacterial孤立，说出104，109，113和115，从水兵，离开中国的海岸的水能免除大量exopolysaccharide(EPS)到媒介。在在四的生产孤立的EPS上的媒介的不同部件的效果被调查。Underthe最佳的状况，EPS释放了由孤立104,109,113和115到达7.48gL~(-1),8.33gL~(-1),18.26gL~(-1),和6.78gL~(在14d以内的-1)分别地。为cyanobacteria基于常规鉴定方法，这些孤立被分到类Cyanothece。

简介：Windshearreflectsthatthewindfieldisnotuniform,whichisoneoftheprimaryfactorswhichmaketheretrievalofthewindfielddifficult.Basedonvolumevelocityprocess(VVP)windfieldretrievaltechnique,theintensityofwindshearisidentifiedinthispaper.Afteranalyzingthetraditionaltechniquesthatrelyonthedifferenceofradialvelocitytoidentifywindshear,afixeddifferenceamongradialvelocitiesthatmaycausefalseidentificationinauniformwindfieldwasfound.Becauseofthenon-uniformityinwindshearareas,thedifferenceofretrievedresultsbetweensurroundinganalysisvolumescanbeusedasameasurementtoshowhowstrongthewindshearis.AccordingtotheanalysisofasevereconvectiveweatherprocessthatoccurredinGuangzhou,itcanbefoundthattheareasofwindshearappearedwiththestrengthsignificantlylargerthaninotherregionsandthemagnitudegenerallylargerthan4.5m/(s·km).Besides,bycomparingthevariationofwindshearstrengthduringtheconvection,itcanbefoundthatnewcellswillbemorelikelytogeneratewhenthestrengthisabove3.0m/(s·km).Therefore,theanalysisofstrongwindshear'smovementanddevelopmentishelpfultoforecastingsevereconvections.

简介：阵风前面是一种中央规模和经常引起严肃的地面风和风的微规模的天气现象砍。这份报纸论述一个自动阵风前面鉴定算法。完全，879件雷达卷扫描样品从发生在在2009和2012之间的中国的21个阵风前面天气过程选择了被检验并且分析。阵风前面回响在反射率，速度，和光谱宽度地的统计特征被获得。把特征基于这些，一个算法被设计认出阵风前面并且产生产量产品和量的索引。然后，315件样品被用来证实算法和3个典型案例被分析。主要结论包括：1)因为狭窄的乐队回响紧张在5和30dBZ之间，宽度在2和10km之间，最大的高度是不到4km(89.33%比3km低)，并且长度在50和200km之间。狭窄乐队的回响比它的包围回响高。2)阵风前面介绍一根集中线或风在速度地里砍；当距离向外放射状地增加时，正面的风速度逐渐地减少。光谱阵风前面的宽度大，与87.09%超过4ms<啜class=“a-plus-plus”>1。3)用前面卷扫描取样测试算法的315阵风表明算法是高度稳定的并且成功地认出了277件样品。算法也为小规模或弱的阵风前面工作。4)雷达数据质量在算法上有某些影响。

简介：VesselMonitoringSystem(VMS)providesanewopportunityforquantifiedfishingresearch.ManyapproacheshavebeenproposedtorecognizefishingactivitieswithVMStrajectoriesbasedonthetypesoffishingvessels.However,oneresearchproblemisstillcallingforsolutions,howtoidentifythefishingvesseltypebasedononlyVMStrajectories.ThisproblemisimportantbecauseitrequiresthefishingvesseltypeasapreliminarytorecognizefishingactivitiesfromVMStrajectories.Thispaperproposesfishingvesseltypeidentificationscheme(FVID)basedonlyonVMStrajectories.FVIDexploitsfeatureengineeringandmachinelearningschemesofXGBoostasitstwokeyblocksandclassifiesfishingvesselsintoninetypes.ThedatasetcontainsallthefishingvesseltrajectoriesintheEastChinaSeainMarch2017,including10031pre-registeredfishingvesselsand1350unregisteredvesselsofunknowntypes.Inordertoverifytypeidentificationaccuracy,wefirstconducta4-foldcross-validationonthetrajectoriesofregisteredfishingvessels.Theclassificationaccuracyis95.42%.WethenapplyFVIDtotheunregisteredfishingvesselstoidentifytheirtypes.Afterclassifyingtheunregisteredfishingvesseltypes,theirfishingactivitiesarefurtherrecognizedbasedupontheirtypes.Atlast,wecalculateandcomparethefishingdensitydistributionintheEastChinaSeabeforeandafterapplyingtheunregisteredfishingvessels,confirmingtheimportanceoftypeidentificationofunregisteredfishingvessels.