简介：Systemadministratordealswithmanyproblems,ascomputingenvironmentbecomesincreasinglycomplex.Systemswithanabilitytorecognizesystemstatesandadapttoresolvetheseproblemsofferasolution.Muchexperienceandknowledgearerequiredtobuildaself-adaptivesystem.Self-adaptivesystemshaveinherentdifficulties.Thispaperproposesatechniquethatautomaticallygeneratesthecodefortheself-adaptivesystem.Thusthesystemiseasiertobuild.Self-adaptivesystemsofpreviousresearchrequiredhighsystemresourceusage.Incorrectoperationcouldbeinvokedbyexternalfactorssuchasviruses.Weproposeanimprovedself-adaptivesystemapproachandapplyittovideoconferencesystemandrobotsystem.Wecomparedthelinesofcode,thenumberofclassescreatedbythedevelopers.Wehaveconfirmedthisenhancedapproachtobeeffectiveinreducingthesedevelopmentmetrics.

简介：Proteomicsisthestudyofproteinsandtheirinteractionsinacell.WiththesuccessfulcompletionoftheHumanGenomeProject,itcomesthepostgenomeerawhentheproteomicstechnologyisemerging.Thispaperstudiesproteinmoleculefromthealgebraicpointofview.Thealgebraicsystem(Σ,+,)isintroduced,whereΣisthesetof64codons.Accordingtothecharacteristicsof(Σ,+,),anovelquasi-aminoacidscodeclassificationmethodisintroducedandthecorrespondingalgebraicoperationtableoverthesetZUofthe16kindsofquasi-aminoacidsisestablished.Theinternalrelationisrevealedaboutquasi-aminoacids.Theresultsshowthatthereexistsomeveryclosecorrelationsbetweenthepropertiesofthequasi-aminoacidsandthecodon.Allthesecorrelationrelationshipsmayplayanimportantpartinestablishingthelogicrelationshipbetweencodonsandthequasi-aminoacidsduringthecourseoflifeorigination.AccordingtoMaFetal(2003J.AnhuiAgriculturalUniversity30439),thecorrespondingrelationandtheexcellentpropertiesaboutaminoacidscodeareverydifficulttoobserve.Thepresentpapershowsthat(ZU,⊕,)isafield.Furthermore,theoperationalresultsdisplaythatthecodontgahasdifferentpropertyfromotherstopcodons.Infact,inthemitochondrionfromhumanandoxgenomiccodon,tgaisjusttryptophane,isnotthestopcodonlikeinothergeneticcode,itisthecaseoftheChenWCetal(2002ActaBiophysicaSinica18(1)87).Thepresenttheoryavoidssomeinexplicableeventsofthe20kindsofaminoacidscode,inotherwordsitsolvestheproblemof'the64codonassignmentsofmRNAtoaminoacidsisprobablycompletelywrong'proposedbyYang(2006ProgressinModernBiomedicine63).

简介：UnreinforcedMasonry(URM)isthemostcommonpartitioningmaterialinframedbuildingsinIndiaandmanyothercountries.Althoughitiswell-knownthatunderlateralloadingthebehaviorandmodesoffailureoftheframebuildingschangesignificantlyduetoinfill-frameinteraction,thegeneraldesignpracticeistotreatinfillsasnonstructuralelementsandtheirstiffness,strengthandinteractionwiththeframeisoftenignored,primarilybecauseofdifficultiesinsimulationandlackofmodelingguidelinesindesigncodes.TheIndianStandard,likemanyothernationalcodes,doesnotprovideexplicitinsightintotheanticipatedperformanceandassociatedvulnerabilityofinfilledframes.ThispaperpresentsananalyticalstudyontheseismicperformanceandfragilityanalysisofIndiancode-designedRCframebuildingswithandwithoutURMinfills.InfillsaremodeledasdiagonalstrutsasperASCE41guidelinesandvariousmodesoffailureareconsidered.HAZUSmethodologyalongwithnonlinearstaticanalysisisusedtocomparetheseismicvulnerabilityofbareandinfilledframes.ThecomparativestudysuggeststhatURMinfillsresultinasignificantincreaseintheseismicvulnerabilityofRCframesandtheireffectneedstobeproperlyincorporatedindesigncodes.

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简介：Buildingcodeshavewidelyconsideredtheshearwavevelocitytomakeareliablesubsoilseismicclassification,basedontheknowledgeofthemechanicalpropertiesofmaterialdepositsdowntobedrock.Thisapproachhaslimitationsbecausegeophysicaldataareoftenveryexpensivetoobtain.Recently,otheralternativeshavebeenproposedbasedonmeasurementsofbackgroundnoiseandestimationoftheH/Vamplificationcurve.However,theuseofthistechniqueneedsaregulatoryframeworkbeforeitcanbecomearealisticsiteclassificationprocedure.ThispaperproposesanewformulationforcharacterizingdesignsitesinaccordancewiththeAlgerianseismicbuildingcode(RPA99/ver.2003),throughtransferfunctions,byfollowingastochasticapproachcombinedtoastatisticalstudy.Foreachsoiltype,thedeterministiccalculationoftheaveragetransferfunctionisperformedoverawidesampleof1-Dsoilprofiles,wheretheaverageshearwave(S-W)velocity,Vs,insoillayersissimulatedusingrandomfieldtheory.Averagetransferfunctionsarealsousedtocalculateaveragesitefactorsandnormalizedaccelerationresponsespectratohighlighttheamplificationpotentialofeachsitetype,sincefrequencycontentofthetransferfunctionissignificantlysimilartothatoftheH/Vamplificationcurve.ComparisonisdonewiththeRPA99/ver.2003andEurocode8(EC8)designresponsespectra,respectively.Intheabsenceofgeophysicaldata,theproposedclassificationapproachtogetherwithmicro-tremormeasurescanbeusedtowardabettersoilclassification.

简介：Awayofresolvingspreadingcodemismatchesinblindmultiuserdetectionwithaparticleswarmoptimization(PSO)approachisproposed.IthasbeenshownthatthePSOalgorithmincorporatingthelinearsystemofthedecorrelatingdetector,whichistermedasdecorrelatingPSO(DPSO),cansignificantlyimprovethebiterrorrate(BER)andthesystemcapacity.Asthecodemismatchoccurs,theoutputBERperformanceisvulnerabletodegradationforDPSO.Withablinddecorrelatingscheme,theproposedblindDPSO(BDPSO)offersmorerobustcapabilitiesoverexistingDPSOundercodemismatchscenarios.

简介：Tocompresshyperspectralimages,alowcomplexitydiscretecosinetransform(DCT)-baseddistributedsourcecoding(DSC)schemewithGraycodeisproposed.UnlikemostoftheexistingDSCschemes,whichutilizetransforminspatialdomain,theproposedalgorithmappliestransforminspectraldomain.Set-partitioning-basedapproachisappliedtoreorganizeDCTcoefficientsintowaveletliketreestructureandextractthesign,refinement,andsignificancebitplanes.TheextractedrefinementbitsareGrayencoded.Becauseofthedependencyalongthelinedimensionofhyperspectralimages,lowdensityparitycheck-(LDPC)-basedSlepian-WolfcoderisadoptedtoimplementtheDSCstrategy.Experimentalresultsonairbornevisible/infraredimagingspectrometer(AVIRIS)datasetshowthattheproposedparadigmachievesupto6dBimprovementoverDSC-basedcoderswhichapplytransforminspatialdomain,withsignificantlyreducedcomputationalcomplexityandmemorystorage.

简介：Variousindexstructureshaverecentlybeenproposedtofacilitatehigh-dimensionalKNNqueries,amongwhichthetechniquesofapproximatevectorpresentationandone-dimensional(1D)transformationcanbreakthecurseofdimensionality.Basedonthetwotechniquesabove,anovelhigh-dimensionalindexisproposed,calledBit-codeandDistancebasedindex(BD).BDisbasedonaspecialpartitioningstrategywhichisoptimizedforhigh-dimensionaldata.Bythedefinitionsofbitcodeandtransformationfunction,ahigh-dimensionalvectorcanbefirstapproximatelyrepresentedandthentransformedintoa1Dvector,thekeymanagedbyaB+-tree.AnewKNNsearchalgorithmisalsoproposedthatexploitsthebitcodeanddistancetoprunethesearchspacemoreeffectively.ResultsofextensiveexperimentsusingbothsyntheticandrealdatademonstratedthatBDout-performstheexistingindexstructuresforKNNsearchinhigh-dimensionalspaces.

简介：现代编译器使用各种各样的代码转变算法改进目标代码的质量。然而，一个复杂问题是决定算法哪个转变必须被利用。因为三个原因，这是困难的：很多个转变算法，各种各样的联合可能性，和几配置可能性。在最后几年，各种各样的聪明的系统在文学被介绍。这些系统的目标是寻找转变算法并且因此把他们用于某个程序。这份报纸建议能够为一个输入程序识别转变算法的一个灵活、便宜、聪明的系统，认为程序是特定的特征。这个系统为parameterization选择是灵活的并且有低计算的费用。另外，它有能力最大化可得到的计算资源的探索。系统在低级虚拟机基础结构下面被实现，结果显示超过有能力，直到21.36%，性能由另外的系统到达了。另外，它在低级虚拟机基础结构的最好攻击的编译器优化水平上完成了多达17.72%的平均改进。

简介：Acomputercode,ELANEX,includingseveralHomogenous-Equilibrium-Model(HEM)typecavitationmodels,weredeveloped,tonumericallysimulatenaturalcavitationphenomena.Theeffectivenessofthecodewascheckedbycavitationflowsaroundthediskandcylinderbodyforawiderangeofdifferentcavitationnumbers.Cavityprofileswerecomparedwiththeanalyticsolutionofdiskandempiricalformulaefittedfromtheexperimentdata,andcontrastbetweendifferentcavitationmodelswerefulfilledaswell.Thecavitylengthandmaximalcavitydiameterwerefoundtoagreewellwiththeanalyticsolutions,anddetailedcavityprofileswereinaccordancewiththeexperimentalformula.Comparisonwiththehemisphereheadedcylinderbodypresentedagoodagreementofthepressurecoefficientwiththeexperimentdata.Reasonabledrag-forcecoefficientvariationanddrag-forcereductioneffectwereobtained.

简介：Thisarticleproposesatime/frequencysynchronizationalgorithminthemultipleinputmultipleoutput(MIMO)systems,inwhichtheperfectcompletegeneralizedcomplementaryorthogonallooselysynchronouscodegroupsareusedasthesynchronizationsequence.Thesynchronizationalgorithmisdividedintofourstages:1)synchronizationintimedomainbysignalautocorrelation;2)synchronizationinfrequencydomainbyfastFouriertransform(FFT);3)multipathdissociationusingcoherentdetectionandfinetimesynchronization;4)finefrequencyoffsetestimationbyphaserotation.Aspertheperfectcompletegeneralizedcomplementaryorthogonallooselysynchronouscodegroups,thecross-correlationandout-of-phaseauto-correlationforanyrelativeshiftbetweenanytwocodesisalwayszero.Thisidealpropertymakesthetime/frequencysynchronizationalgorithmsimpleandefficient.Thesimulationresultsshowthateveninthemultipathfastfadingchannelwithlowsignalnoiseratio(SNR),theMIMOsystemcangetsynchronizedbothinthetimedomainandfrequencydomainwithhighstabilityandreliability.

简介：ThemultilevelmodulationtechniquesofM-DifferentialAmplitudePhaseShiftKeying(DAPSK)havebeenproposedincombinationwithTurbocodeschemefordigitalradiobroadcastingbandsbelow30MHzradiochannel.ComparisonofthismodulationmethodwithchannelcodinginanAdditiveWhiteGaussianNoise(AWGN)andmulti-pathfadingchannelshasbeenpresented.TheanalysisprovidesaniterativedecodingoftheTurbocode.

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简介：Inthispaper,aclustermodelinparticleflowcodewasusedtosimulategranitespecimensafterheattreatmentunderuniaxialcompression.Theresultsdemonstratedthatmicro-cracksarerandomlydistributedinthespecimenwhenthetemperatureisbelow300?C,andhavepartialcoalescencewhenthetemperatureisupto450?C,thenformmacro-crackswhenthetemperatureisabove600?C.Thereismoreinter-granularcrackingthanintra-granularcracking,andtheirratioincreaseswithincreasingtemperature.Themicro-cracksarealmostconstantwhenthetemperaturedecreasesfrom900?Ctoroomtemperature,exceptforquartzα–βphasetransitiontemperature(573?C).Thefractureevolutionprocessisobviouslyaffectedbythesecracks,especiallyat600–900?C.Elevatedtemperatureleadstoeasilydevelopeddisplacementbetweenthegrains,andthecapacitytostorestrainenergybecomesweaker,correspondingtotheplasticityofgraniteafterheattreatment.

简介：Space-TimeBlock(STB)codehasbeenaneffectivetransmitdiversitytechniqueforcombatingfadingduetoitsorthogonaldesign,simpledecodingandhighdiversitygains.Inthispaper,aunit-ratecomplexorthogonalSTBcodeformultipleantennasinTimeDivisionDuplex(TDD)modeisproposed.Meanwhile,TurboCoding(TC)isemployedtoimprovetheperformanceofproposedSTBcodefurtherbyutilizingitsgoodabilitytocombatthebursterroroffadingchannel.Comparedwithfull-diversitymultipleantennasSTBcodes,theproposedcodecanimplementunitrateandpartialdiversity;andithasmuchsmallercomputationalcomplexityunderthesamesystemthroughput.Moreover,theapplicationofTCcaneffectivelymakeupfortheperformancelossduetopartialdiversity.SimulationresultsshowthatontheconditionofsamesystemthroughputandconcatenationofTC,theproposedcodehaslowerBitErrorRate(BER)thanthosefull-diversitycodes.

简介：TheenergyresponsesofKaoftwotypesofcylindricalG-Mcountertubeswerecalculatedusinganelectron-photoncascadeMonteCarlocode,EGS4.OnetypeoftheG-McountertubeswasGJ4401(sensitivelength9cm,diameter1cm),theotherwasJ5(sensitivelength2cm,diameter0.3cm),therestrictedsamplingtechniqueofsourcephotonwasused.Goodtendencyagreementsbetweenthesimulationsandexperimentswereachievedforgammaradiationwithenergiesrangingfrom40keVto1.25MeV.ForGJ4401,thedifferenceofresponsebetweensimulationsandexperimentsat662keVwas34%andforJ5thedifferencewas27%.

简介：严重事故下核电安全壳内由于几何与流动的复杂性,需要有可靠的程序对流动进行分析评估.文章采用符合核电安全标准的开源CFD程序Code_Saturne对壳内气体流动进行计算,主要模拟壳内氢气和水蒸气喷放过程.该过程涉及多组分气体低速流动计算浮力效应引起的分层固体结构热传导结构表面与气体之间的热流和冷凝的计算.该程序使用了SIMPLEC格式并添加了低Mach数气体流动算法,基于理想气体模型的多组分模型和薄板结构上的一维热传导模型.同时,在此基础上改进了壁面函数方法,对壁面进行对流传热和传质流动计算.最后利用两个国际化标准问题对该程序及使用的模型进行了验证.

简介：TheionospherictimedelayisoneofthemainerrorsourcesinC/AcodeGPSnavigationandpositioningapplications.Inthispaper,amethodisproposedforreal-timedual-frequencyionospherictime-delaycorrectingusingaC/AcodeGPSreceiver,andtheprincipleofthecircuitblockdiagramforthismethodisanalyzedwithitsfeasibilitytheoreticallydemonstrated.

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简介：ThispaperpresentsacomparisonbetweentheChineseCodeGB50011-2001andtheInternationalStandardISO3010:2001(E),emphasizingthesimilaritiesanddifferencesrelatedtodesignrequirements,seismicactionsandanalyticalapproaches.Similaritiesinclude:earthquakereturnperiod,conceptualdesign,siteclassification,structuralstrengthandductilityrequirements,deformationlimits,responsespectra,seismicanalysisprocedures,isolationandenergydissipation,andnonstructuralelements.Differencesexistinthefollowingareas:seismiclevels,earthquakeloading,modedampingfactorsandstructuralcontrol.