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500 个结果
  • 简介:多重顺序排列成功地在许多研究被使用为在下面--在单个nucleic和蛋白质之中承受结构、功能的关系象整个家庭一样定序。因为顺序数据库的快速的生长,多重顺序排列能经常很大、困难设想并且分析。我们提供试图设想并且分析与不同外部算法获得的多重排列的一种新服务,与为排列序列的比较以及为排列的一幅最后的图象的创造有用的新特征。服务被称为FASMA并且在http://bioinformatica.isa.cnr.it/FASMA/是可得到的。

  • 标签: 复杂排列 序列分析 FASMA 生物学
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  • 简介:Analysisoftheissuecallsforsomequestionsofmethodology.First,thelawofhistoricaldevelopmentteachesthatallcountries,nomatterhowstrongtheymaybe,willeventuallydecline.SothepointisnotwhethertheUnitedStateswillbeanexception,butwhenandhowwillthedayofreckoningdescendontheworld'scurrentsolesuperpower.

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  • 简介:Alongwiththedevelopmentofinformationandcommunicationstechnology,openeducationalresourceswerewidelyappliedintrainingusage.Theuseoftheseresourcesfacilitatestheaccesstoknowledgebyenablinglearnerstotranscendtimeandspace.Inthisway,learnersareabletoobtainnewknowledgemoreactivelyandefficientlythanbefore.UsingTechnologyAcceptanceModel(TAM)asthetheoreticalfoundation,thisstudyaimstoexplorethelearningoutcomeofusingopeneducationalresourceswiththeperceivedconvenienceastheexternalvariable.Inthisstudy,theopeneducationalresourcesweredefinedasonlinecoursesontheOpenCourseWare(OCW)andMassiveOpenOnlineCourses(MOOCs),onwhichthelearnerschoosecoursesthemselvesandstudywithouttheimpactfrompeople,matters,time,space,andthingswiththehelpoftheInternet.Toachievetheobjectivesofthestudy,theresearchersconductedasurveywiththeparticipantswhohadalreadyusedtheopeneducationalresources.Intotal,124validsampleswerecollected.ThePartialLeastSquares(PLS)statisticalmethodwasusedtocarryouttheanalysis.Overall,themodelofthisstudyhasgoodpredictionandexplanatorypower.Afterthedataanalysis,thestudyfoundthattheperceivedconvenienceexertsapositiveimpactontheuseoftheopeneducationalresources.Inaddition,amongthefourTAMvariables,theperceivedusefulnessdoesnotexertasignificantimpactonthebehavioralintentiontouse,buttheotherthreeTAMvariablesallhaveasignificantimpactonthebehavioralintention.

  • 标签: Technology Acceptance Model(TAM) PERCEIVED CONVENIENCE open
  • 简介:Anewapproach,basedonthewaveformrelaxationtechniqueandfastWalshtrans-form,ispresentedtoanalyzethecoupledloosytransmissionlines(CLTL)witharbitraryterminalnetworks.Thesimulationaccuracyofthenewmethodcanbegreatlyimproved,thedisadvantagewhichalwaysexistsinpreviousmethodscanbeavoidedandaconsiderablesavingintimeandmemoryofCPUisobtained.

  • 标签: INTEGRAL transmission line FAST WALSH TRANSFORM
  • 简介:ToanalyzeChina'sfluctuatingsituationofthefactorinputandaggregativeproductivityisnotonlythemainmethodtoseekthesourceoftheeconomicgrowthbutalsothemainwaytoweighthelevelofeconomicgrowthquality.Astoeconomicgrowthofacountry,theimprovementoftheproductivityisextremelyimportant.Thegrowthoftheoutputcanberealizedthroughtwokindsofways:increasingthequantityoffactorinputoforimprovingtheeffciencyoftheinputandoutput.Therefore,thelevelofeconomicgrowthquafitydoesnotmainlydependontheamountofinvesTedfactor,buttheimportanceofimprovingtheprodutivitysincePesourcesarerare.Therelativeimprovementofefficiencyinuseoftheinvestedfactormarkstheeconomicgrowingquality.So,inordertounderstandtheeconomicgrowthquafityofChinatosomeextent,itmustanalyzeChinesefactorinputandaggregativeproductivity.Thisisthemaintopicthatthistextwiltbeprobedinto.

  • 标签: 经济增长质量 中国 实证研究 经济发展 经济建设 GNP
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  • 简介:and language. It is a more common case that an advertisement is a mixture of the three. In radio advertisements,length of a sentence in advertising is usually short. A sentence in daily consumer goods ads has 10.3 words on average,there are some differences in the use of these pronouns in the three kinds of advertisements. The first person we almost never occurs in daily consumer goods ads and technical equipment ads

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