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：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.

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：

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.

简介：为Protoperidinium种类的分类和鉴定在它的分类学习期间是最困难的工作。在这研究，Protoperidinium的分类地位被跟踪它的分类历史澄清，23种类在中国的海岸上属于类Protoperidiniumpreliminarily被识别，并且词法描述和板模式为每种被给。类似的种类的关键差别也在这研究被讨论，我们相信那P。oceanicum和P。murry，P。tumidum和P。fatulipes，P。水珠和P。majus是分开的种类；P。diabolum应该被当作有效名字而不是报导名字Peridiniumglobosum或Peridiniumlongipes；在P之间的分类关系。punctulatum和P。subinerme要求进一步的学习。

简介：

简介：Inthispaperanewnondestructivedamageidentificationmethodisintroduced.Themethodbasedonflexibilitymatrixcanbeusedtodetectandlocatestructuraldamageandevaluatetheseverityofdamageinlegsofjacketplatformsbymodalparametersofastructure.Withthemodaldataforonlythefewlowermodesinboththeintactanddamagedstates,theone-dimensionalandtwo-dimensionaldistributedcurvaturescanbeusedtoanalyzedamagelocationandtheseverity.Insteadofdirectlycomparingthecurvaturesbeforeandafterdamage,themethodhereusesmodalparametersonlyinthedamagedstructuretodetectthedamageanditconsistsofthreeparts.First,flexibilitymatrixisobtainedbyuseoftheabsolutemaximumineachcolumn.Second,becausethelegsofjacketplatformsarethepipe-likestructure,thecircumferentialflexibilitycurvaturematrixisobtainedbyuseofthecircularcurvature.Atlast,equivalentcurvatureratioisdefinedandthecurvemeaningequivalentcurvatureratioandtheseverityofdamagerelationshipforoneelementisgiventhroughthedataofdamageseverityfromtenpercenttoninetypercentbynumericalsimulation.Manyexistingdamagedetectionmethodsneedtwosteps,locatethedamagefirstlyandevaluatetheseverityofthedamage.However,themethodpresented!inthispapercanlocateandthenevaluatetheseverityofdamageatthesametime.Thenumericalanalysisresultsindicatethatthepresentmethodiseffective,usefulandonlyneedthefirstandthesecondmodedataofthestructure.

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简介：Freespanningpipelinesaresuspendedbetweentwopointsonanunevenseafloor.Thevariationsofstructuralconditions,suchasthechangesinsoilproperty,flowvelocity,axialforceandspanlengthetc.,directlyaffectworkingperformanceofthewholesubmarinepipelinesystem.Butuntilnowfewresearcheshavefocusedonconditionidentificationforfreespan(CIFS).Amethodtoidentifytheoperationalconditionsoffreespanningsubmarinepipelinesbasedonvibrationmeasurementsisproposedinthispaper.Firstly,theill-posednessofCIFSisanalyzedindetail.Secondly,theframeworkforCIFSbasedonthenonlinearkerneldiscriminantanalysis(KDA)isestablished.Thirdly,theinternalstructuralcharacteristicsofnaturalfrequencies,normalizedfrequenciesandfrequencychangeratiosarestudied.AndthentheconditionfeaturevectorforCIFSisextractedbyuseofthevibrationmeasurements.Finally,thevalidityoftheproposedapproachisevaluatedbyacasestudy.Theresultsdemonstratethattheproposedapproachcaneffectivelyidentifyeachconditionoffreespanwhenconditionvariationoccursevenifundermeasurementnoise.ItisconcludedthattheproposedmethodisapromisingtoolforCIFSinrealapplications.

简介：StrataofdifferentgeologicalperiodsextensivelyoutcropinwesternGuang-dongProvince,butmostgolddepositsarerestrictedtotheMiddle-LateProterozoicYunkaiGroupandtheCambrianBacunGroup,showingobviousstrata-bouncharacter-istics.GoldabundanceandtraceelementgeochemistryoftheYunkaiandBacunGroupsarecomparedwiththoseoftheOrdovicianandSilurianstrta.TheYunkaiGroupisconsideredtobethesourcestrataforgoldmineralizationintheregion.

简介：与大约2个小时的时期，高周波的摆动被把小浪分析用于首先识别详细地绕热带气旋(TC)的眼睛和eyewall观察了风速度。台风Hagupit(2008)的模型模拟的分析证明摆动也在eyewall附近发生在TC紧张，垂直运动，集中活动和空气密度。在这些变量的摆动的序列跟随某个顺序。

简介：能够lysing的所有以前报导的细菌的种类有害水藻从有害水藻花蕾在发生了的沿海的环境被孤立。由于在一个海藻的花蕾的水藻细胞溶解细菌的低集中，由存在方法孤立水藻细胞溶解细菌是困难的。在这篇论文，二水藻细胞溶解细菌的紧张，P01；P03，从在在移开水藻是高度有效的海绵上使不能调动的一个简历系统被孤立；microcystins。他们的lysing模式；Microcystisaeruginosa上的效果被学习了。降级为M这二紧张处理的结果表演。当时，与一阶的反应给予的aeruginosa当模特儿集中在从0～1000μgL的范围的叶绿素[1]。降级率常数是0.1067，0.1274；0.2792为P01；0.0683，0.0744；0.02897为P03当细菌的密度是8.6×1时0[5]，8.6×10[6]；8.6×10[7]房间mL[1]分别地。而且，二细菌的紧张在M上有赞成lysin的效果不仅。aeruginosa，而且上小球藻；Scene-desmus。他们M上的lysin的效果。aeruginosa没要求物理房间到房间接触，但是由一个细胞外的产品的生产继续。细菌的紧张被16SrRNA基因的PCR扩大作为杆菌种类识别，强风分析，；有在GenBank核苷酸数据库的序列的比较。

简介：由露头，日志和核心数据识别古老的河的词法类型是容易的。然而，隧道的水平分发和几何学能被依靠3-D仅仅鉴别并且预言地震数据。特别，地震地平线切的3-D能在蜿蜒地流的河，支流隧道和低蜿蜒的隧道的沙岩预言起一个重要作用。每个微外形单位包括主要隧道，例如蜿蜒或分叉的隧道，早朝，裂缝隧道，叶舌裂缝展开，泛滥平原等等能被识别。编织隧道沙岩是平面平坦侧面连接沙身体和厚主要隧道带的分发能仅仅从3-D被识别地震数据。因为编织沙岩是无所不在的，他们的出现和分发不需要被预言。通常，煤速度是那么低的它能在煤阶层创造强壮的振幅思考。它因而隐藏振幅作答到吻合能从3-D被识别的隧道沙岩地震倒置数据有时。充满泥的低蜿蜒的河的案例研究与3-D识别了地震数据显示如此的沙身体的规模和width-to-thickness比率是小的，旁边地不连接，并且通常在干燥气候条件下面发生在一把冲积扇子的远或进一步的部分上。有时，沿着地平线的每个思考事件的地震属性的抽取被期望最大化古老的隧道的空间进化的表示。