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简介:这份报纸涉及为有输出状态时间的线性时间不变的系统(LTIS)的一个类的设计推迟的柔韧的差错察觉过滤器(RFDF)。尽管在文学的存在结果为时间延期系统学习RFDF,很少涉及产量状态时间延期系统。我们的学习的基本想法是消除系统的时间延期并且转变它到一个没有延期的系统(即,没有时间延期的一个线性时间不变的系统)由坐标的bicausal变化途径。然后,我们为没有延期的LTIS设计RFDF,它与时间延期等价于原来的系统。我们首先与输出状态时间延期介绍系统的一个类,其差错能被为没有延期的系统使用RFDF设计途径检测。然后,后来,RFDF设计问题能作为匹配问题的标准H-infinity-model被提出,它被使用H-infinity-optimizationLMI技术解决。在最后,差错察觉的适应阀值被选择,一个解说性的设计例子被用来表明设计途径的有效性。
简介:Average(mean)voterisoneofthecommonestvotingmethodssuitablefordecisionmakinginhighly-availableandlong-missionsapplicationswheretheavailabilityandthespeedofthesystemarecritical.Inthispaper,anewgenerationofaveragevoterbasedonparallelalgorithmsandparallelrandomaccessmachine(PRAM)structureareproposed.Theanalysisshowsthatthisalgorithmisoptimalduetoitsimprovedtimecomplexity,speed-up,andefficiencyandisespeciallyappropriateforapplicationswherethesizeofinputspaceislarge.
简介:1.IntroductionInrecentyears,theproblemaboutthetectonic-meta1logcncsjshasbeennotieedbymanygeolo-gists’Aboutmoretbantcnyearsago,ProfessorCbcnGuodaproposcdtbcconeeptionoftectonic-met-allogenesis’AndProfessotHuangRuihua(1989,1990)paidgrcatattcntiontotheinitiativeofstructurcsactingonthemctallogencticproe
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简介:Shannonentropyintimedomainisameasureofsignalorsystemuncertainty.Whenbasedonspectrumentropy,Shannonentropycanbetakenasameasureofsignalorsystemcomplexity.Therefore,waveletanalysisbasedonwaveletentropymeasurecansignifythecomplexityofnon-steadysignalorsysteminbothtimeandfrequencydomain.Inthispaper,inordertomeettherequirementsofpost-analysisonabundantwavelettransformresultdataandtheneedofinformationmergence,thebasicdefinitionofwaveletentropymeasureisproposed,correspondingalgorithmsofseveralwaveletentropies,suchaswaveletaverageentropy,wavelettime-frequencyentropy,waveletdistanceentropy,etc.areputforward,andthephysicalmeaningsoftheseentropiesareanalyzedaswell.TheapplicationprincipleofwaveletentropymeasureinElectroEncephaloGraphy(EEG)signalanalysis,mechanicalfaultdiagnosis,faultdetectionandclassificationinpowersystemareanalyzed.Finally,takethetransmissionlinefaultdetectioninpowersystemforexample,simulationsintwodifferentsystems,a10kVautomaticblockingandcontinuouspowertransmissionlineanda500kVExtraHighVoltage(EHV)transmissionline,arecarriedout,andthetwomethods,waveletentropyandwaveletmodulusmaxima,arecompared,theresultsshowfeasibilityandapplicationprospectofthesixwaveletentro-pies.
简介:CO2adsorptiononthesurfaceofhydrotalcite-derivedmixedoxidecatalystswasinvestigatedunderlowpressureglowdischargeplasmainopercindoconditionsviaFT-IRspectroscopy.Nickelcatalystswerepromotedwithvarioustransitionmetalspecies(Ce,Fe,La,Zr)toinfluencetheirphysico-chemicalproperties.FeandZrspeciesweresuccessfullyincorporatedintohydrotalcitebrucitelayers.AftercalcinationformedasinglephasewithNi(Mg,A1)Omixedoxide,whileLaandCespeciesformedseparatephases.ThishadaconsequenceinthedistributionofsurfacebasicsitesaswellasintheaffinitytoCOproduceduponCO2dissociationinplasma.Plasmatreatmentactivatedthesurfaceofpreparedmaterialsandchangedtheirpropertiesviathegenerationofstrongbasicsitesassociatedwithlowcoordinatedsurfaceoxygenanions.Moreover,theCO2adsorptioncapacityofpreparedmaterialsincreasedafterplasmatreatment.
简介:锌(Zn)缺乏是限制米饭庄稼生长和产量的主要土壤限制,然而,忍耐机制的基因控制仍然糟糕被理解。这里,我们介绍了有希望的loci和候选人基因交谈忍耐给Zn缺乏并且通过协会分析识别了用一365?在多样的aus(半野的类型米饭)的K单个核苷酸多型性(SNP)标记数组面板。容忍的就职与相对稀罕的压力症状展出了更高的生长率。染色体上的二loci7和9强烈在一个山峰压力阶段在Zn缺乏下面与植物活力被联系。从一样的试验性的阴谋基于以前的microarray数据,我们加亮其表达式被重要遗传型或环境效果在Zn下面伴随的四候选人基因缺乏。网络基因本体论支持了已知的忍耐机制,例如维生素酸小径,并且也建议了光合作用基因的重要性克服Zn缺乏症状。
简介:在紧张的热环境下面,昆虫调整他们的行为和生理学维持关键lifehistory活动并且改进幸存。为交往的种类,相互或对抗,热应力可以以不同方法影响参加者,它然后可以影响生态的关系的结果。在agroecosystems,这可以在尖锐、长期的热可变性下面是在昆虫害虫和他们的对抗parasitoids之间的关系的命运。对这个背景,我们调查了ChilopartellusSwinhoe的不同发展阶段的热忍耐(鳞翅目:Crambidae)并且它的幼虫的parasitoid,Cotesiasesamiae卡梅伦(Hymenoptera:Braconidae)用动态、静态的协议。当为2h暴露了到静态的温度时,更低的致命的温度从9~6吗?
简介:干旱是到在rainfed低地的米饭生产的主要不能生活的限制并且不足地灌溉区域。干旱的改进容忍的变化是策略之一减少干旱的否定效果。为与染色体上的干旱忍耐(DT)有关的主要、第二等的特点的量的特点loci(QTL)1,3,4,8和9从线从在CT9993和IR62266之间的一个十字导出的两倍haploid决定了那是introgressed并且在Khao邮政马里105的基因背景(KDML105)把了进小片开发染色体片断替换线(CSSL)人口。CSSL在干旱应力下面为他们的农学的表演和收益部件在繁殖阶段被评估,并且结果与灌溉状况相比。CSSL线的flowering比KDML105早是6~7d。在CSSL的谷物收益的吝啬的价值比在干旱下面的KDML105高并且灌溉了条件。以灌溉状况,谷物从4和8是的染色体带DT-QTLs的基因渗入线让步比KDML105的高,而另外的特点与KDML105显示出小差别。当否定地与天相关到flowering时,分析显示谷物产量在干旱应力下面每植物每植物,和全部的谷物重量与植物高度,tiller和圆锥花序数字有积极关联。是提及在上面,在干旱应力下面显示出好改编的CSSL能被用作基因材料,并且作为材料在引起节目的泰国rainfed低地米饭改进干旱忍耐把基因位于\O下面干旱忍耐。
简介:Ontheconditionthatthevelocityratioofcompressivewavetoshearwaveisstableduringthepropagatingprocessofseismicwave,thispaperdevelopsanestimationmethodformediumqualityfactorbasedonsinglestation'straveltimedifferencebetweendirectSandPwavesandthefirstperiodsignalofdirectPwave.8774highSNRwavedataaltogetherrecordedby75stationsareanalyzed.Theresultsshowthat:(1)underthenormalregionalstressfield,thequalityfactorsQmSPinthestabletectonicareaarehigherthanthatintheactivetectonicareaaroundtheWeifang-JiashansectionanditssurroundingareaintheTanlufaultzone;(2)intheJuxian-Tanchengsectiontheseismicwaveattenuationisrelativelyquick,andthemediaisrelativelybroken,suggestingnotectonicstressaccumulation;(3)theXinyi-Sihongsectioniscurrentlylockingandinaccumulatingelasticstrainenergystage,whichhasthedeepenvironmentandconditionsofstrongearthquakegenerationsimilartothoseofthe1668M8.5Tanchengstrongearthquake.
简介:Thisarticlemadeasystematicstatisticalanalysisontheduration,spatialdistribution,form,range,typeandreliabilityofprecursoryanomaliesbasedontheobservationsofprecursorsof24moderate-strongearthquakesoccurringalongtheTancheng-LujiangfaultzoneanditsbilateralareasinShandong,Liaoning,Hebei,JiangsuandJiangxiProvincesintheperiodfrom1966to2005.Resultsshowthat:(1)ForM7.0andM6.0earthquakes,med-termabnormitiesarethegreatestinnumber,short-termabnormitiescomesecond,andimminentanomaliesaretheleast.ForM5.0earthquakes,short-termabnormitiesareoftenthemostinnumber,imminentanomaliescomesecond,andthemed-termonesaretheleast.(2)Precursoryanomaliesareperiodical,partofthemedandshort-termanomaliesareshownasshort-termandimminentanomaliesduringtheirdevelopment.(3)Thedevelopmentofprecursorshowsquasi-synchronism;theclosertoearthquakeoccurrencetime,themoreturningchangesofanomalieswillappear.(4)Anomaliesmainlyoccurwithinanepicenterdistanceof100km,showingarelativeconcentrateddistributioninspace,andtheshorterthedistancetoepicenter,thehighertheanomalystation/itemrate.(5)Thespatialdistributionofanomaliesisrelativelycorrelatedtothestrikeofstructures,havingagoodconsistencywiththestructure.(6)Thereisnosignificantcorrelationbetweendurationofabnormitiesandtheepicenterdistance.(7)Thehigherthemagnitudeoftheearthquake,thegreatertheamplitudeoftheabnormitiesmeasuredwiththesameobservationapproach.(8)Intermsoftheitemsoftheobservations,fluidabnormitiesarethegreatestinnumber,followedbydeformationandelectromagnetismobservations.(9)Forallobservationitems,medandshort-termabnormitiesmakeupthemajorityandshort-termandimminentanomaliestheminority.(10)Influid,deformationandelectromagnetismobservations,fairlyreliableanomaliesareaboutdoublethenumberofreliableanomalies.
简介:Withtheimprovementofseismicobservationsystem,moreandmoreobservationsindicatethatearthquakesmaycauseseismicvelocitychange.However,theamplitudeandspatialdistributionofthevelocityvariationremainsacontroversialissue.RecentactivesourcemonitoringcarriedoutadjacenttoWenchuanFaultScientificDrilling(WFSD)revealedunambiguouscoseismicvelocitychangeassociatedwithalocalMs5.5earthquake.Here,wecarryoutforwardmodelingusingtwo-dimensionalspectralelementmethodtofurtherinvestigatetheamplitudeandspatialdistributionofobservedvelocitychange.ThemodeliswellconstrainedbyresultsfromseismicreflectionandWFSDcoring.Ourmodelstronglysuggeststhattheobservedcoseismicvelocitychangeislocalizedwithinthefaultzonewithwidthof*120mratherthandynamicstronggroundshaking.Andavelocitydecreaseof*2.0%withinthefaultzoneisrequiredtofittheobservedtraveltimedelaydistribution,whichcoincideswithrockmechanicalexperimentandtheoreticalmodeling.
简介:Accordingtofieldinvestigationandinterpretationofremotesensingimages,thenorthsegmentoftheLongling-RuilifaultisaHolocenedextralstrike-slipfaultwithasmallamountofnormalfaulting.Basedonlarge-scalegeologicalmappingatsometypicallocationsandquantitativegeomorphologicdeformationmeasurementanddatinganalysis,thisfaultisaHoloceneactivefault.Thestrike-sliprateoftheLongling-Ruilifaultis2.2~2.5mm/aandverticalsliprateis0.6mm/asincethelatePleistoceneepoch.Thestrike-sliprateoftheLongling-Ruilifaultis1.8~3.0mm/aandverticalsliprateis0.5mm/asincetheHoloceneepoch.BasedonthePoissonmodel,lognormalmodelandBPTmodel,theoccurrenceprobabilityofstrongearthquakesin50yearsisestimatedtobe6.32%,0.08%and0.05%,respectively.Then,a1.82%probabilityofoccurrenceofcharacteristicearthquakeforthenorthsegmentoftheLongling-Ruilifaultisobtainedbysettingaweightof0.28,0.36and0.36tothePoissonmodel,lognormalmodelandBPTmodel,respectively.
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简介:ThefaultzonealongthenorthernmarginofWestQinlingRangeisamajoractivefaultzoneinthekeyseismicmonitoringareainthesoutheasternpartofGansuProvince.Inordertostudythecurrentactivitycharacteristicsofthisfault,GPSmonitoringnetworkhasbeenarrangedalongbothsidesofthefaultand3measurementshavebeenmadefrom1996to1998.Theresultindicatesthatobviousdifferentialmovementexistsalongthenorthandsouthsidesofthefaultandtheeastwardmovementonthesouthsideis3.8mm/alargerthanthatonthenorthside.IntheGPSnetwork,theshortenedsideisgenerallyinthetrendofEWandtheextendedsideisbasicallyNWtoSE.TheprincipalcompressionalstresstrendinthisareaisaboutEWandthesinistralmotionisobviousintheeasternpartofthefault(nearWushan).Themeasuredresultsalsoindicatethatthedisplacementratehasdecreasedby50%andthecompressionalstrainhasincreasedby100%ascomparedthedataof1997~1998withthoseof1996~1997,whichshowst
简介:晚第四级沿着东方Kunlun差错的Maqu片断滑动率用高分辨率的遥感形象解释,地观察和微分全球放系统(GPS)的联合被估计偏移量河平台的大小,和14从偏移量起床人收集的蜗牛壳标明日期的C。结果证明沿着片断的离开滑倒率是3-5mm/a,并且垂直滑倒率是0.3-0.5mm/a。两水平、垂直在在∼100km的距离上一致的片断遗体上滑倒。当以前建议了,它意味着不滑动坡度沿着Maqu片断发生了,并且它可能因此作为一个独立seismogenic差错表现。在年轻梯田之中从多重关系判定抵消,我们推断典型地震在Maqu差错上与Ms7.0-7.5的大小生产的那co地震的表面破裂能产生一水平4.5-5m滑倒并且一垂直0.45-0.5m滑倒,与大约9的相应比率(Dh/Dv)。二个表面破裂事件肯定发生在过去的3300年,最近的可能在1485calBP和1730calBP之间。
简介:Tancheng-LujiangFaultSystem:ItsCharactersandControlonOil-GasDistributioninEasternChinaChenQuanmao;LiangXiaodong;ZhangGuangya;...