简介：Weproposeacatalysis-selectmigrationdrivenevolutionmodeloftwo-species(A-andB-species)aggregates,whereoneunitofspeciesAmigratestospeciesBunderthecatalystsofspeciesC,whileunderthecatalystsofspeciesDthereactionwillbecomeoneunitofspeciesBmigratingtospeciesA.MeanwhilethecatalystaggregatesofspeciesCperformself-coagulation,asdothespeciesDaggregates.Westudythiscatalysis-selectmigrationdrivenkineticaggregationphenomenausingthegeneralizedSmoluchowskirateequationapproachwithCspeciescatalysis-selectmigrationratekernelK(k;i,j)=KkijandDspeciescatalysis-selectmigrationratekernelJ(k;i,j)=Jkij.Thekineticevolutionbehaviourisfoundtobedominatedbythecompetitionbetweenthecatalysis-selectimmigrationandemigration,inwhichthecompetitionisbetweenJD0andKC0(D0andC0aretheinitialnumbersofthemonomersofspeciesDandC,respectively).WhenJD0KC0>0,theaggregatesizedistributionofspeciesAsatisfiestheconventionalscalingformandthatofspeciesBsatisfiesamodifiedscalingform.AndinthecaseofJD0KC0<0,speciesAandBexchangetheiraggregatesizedistributionsasintheaboveJD0KC0>0case.

简介：Forasemi-supervisedclassificationsystem,withtheincreaseofthetrainingsamplesnumber,thesystemneedstobecontinuallyupdated.Asthesizeofsamplessetisincreasing,manyunreliablesampleswillalsobeincreased.Inthispaper,weusefuzzyc-means(FCM)clusteringtotakeoutsomesamplesthatareuseless,andextracttheintersectionbetweentheoriginaltrainingsetandtheclusterafterusingFCMclustering.Theintersectionbetweeneveryclassandclusterisreliablesampleswhichwearelookingfor.Theexperimentresultdemonstratesthatthesuperiorityoftheproposedalgorithmisremarkable.

简介：ThelinkbetweenclimatechangeanddesertificationisanimportantglobalproblemfortheUnitedNationsFrameworkConventiononClimateChange(UNFCCC)andtheUnitedNationsConventiontoCombatDesertification(UNCCD).ThecoastalprovincesinSouthernCentreVietnamarestronglyinfluencedbydesertification,whichisfurtherexacerbatedbyclimatechange.TheDelphimethodwasusedtoselectsustainabilityindicatorsandthenamethodofananalyticalhierarchyprocesswasappliedtoprioritizesustainablesolutionsinBinhThuanexpertstoelicitthecausesandeffectsofdesertification.Accordingtothepanelof23experts,27cause(e.g.rainfallandsunshineduration)and22effect(e.g.riceandagriculture)indicatorswereofparticularimportancetodesertificationanddroughtintheprovince.Thehighestprioritiesforcausearegiventoemigration,followedbyincomefromindustryandwatersupplyforhouseholduse.Thehighestprioritiesforeffectintheareaaregiventosocioeconomiccriteria,andinparticulartothesub-criteriaresettlementduetodevelopmentprojects,buildinghydropowerreservoirs,andimplementingirrigationschemes.Thesystemofindicatorsprovidesusefulinformationforthefuturestudies.Thisstudyprovidesameanstouncoverthemostimportantcriteriaperceivedasmajorcontributorstodesertificationandassuchenablespolicy-makerstoprioritizesolutionsforBinhThuan(Vietnam)by2015andavisionin2020.

简介：受广告公司Allen＆Gerritsen之托。Click3x为投资公司SelectSectorsSPDRs制作了一个系列广告短片。其中包括该公司LOGO的动画版。这组广告以幽默的手法提示人们要合理控制自己的投资。

简介：Objective:Cancerisoneofthemostcommondiagnosesinelderlypatients.Ofalltypesofabdominalcancer,colorectalcancer(CRC)isundoubtedlythemostfrequent.Medianageatdiagnosisisapproximately70yearsoldworldwide.Duetothemultiplecomorbiditiesaffectingelderlypeople,frailtyevaluationisveryimportantinordertoavoidover-orundertreatment.Thispilotstudywasdesignedtoinvestigatethevariablescapableofpredictingthelong-termriskofmortalityandlivingsituationaftersurgeryforCRC.Methods:Patientswith70yearsoldandolderundergoingelectivesurgeryforCRCwereprospectivelyenrolledinthestudy.Thepatientswerepreoperativelyscreenedusing11internationally-validated-frailty-assessmenttests.Theendpointsofthestudywerelong-termmortalityandlivingsituation.ThedatawereanalyzedusingunivariateCoxproportional-hazardregressionanalysistoverifythepredictivevalueofscoreindicesinordertoidentifypossibleriskfactors.Results:Forty-sixpatientswerestudied.Themedianfollow-uptimeaftersurgerywas4.6years(range,2.9-5.7years)andnopatientswerelosttofollow-up.Theoverallmortalityratewas39%.Fourofthepatientswhosurvived(4/28,14%)losttheirfunctionalautonomy.ThepreoperativeimpairedTimedUpandGo(TUG),EasternCooperativeGroupPerformanceStatus(ECOGPS),InstrumentalActivitiesofDailyLiving(IADLs),VulnerableEldersSurvey(VES-13)scoringsystemsweresignificantlyassociatedwithincreasedlongtermmortalityrisk.Conclusion:Simplifiedfrailty-assessingtoolsshouldberoutinelyusedinelderlycancerpatientsbeforetreatmentinordertostratifypatientrisk.TheTUG,ECOG-PS,IADLsandVES-13scoringsystemsarepotentiallyabletopredictlong-termmortalityanddisability.Additionalstudieswillbeneededtoconfirmthepreliminarydatainordertoimprovemanagementstrategiesforoncogeriatricsurgicalpatients.

简介：许多AV爱好者在组建家庭影院时常常都会为影音放大器的选择而烦恼，尤其是囊中不甚宽裕的普通发烧友，更需要精打细算。一个有经验的影音发烧友，选择器材的时候不仅会关注其是否能兼容各种主流的解码格式，以及机器的功能配置，还会把是否符合THX认证标准作为考虑的重要因素。只是以往的THX认证机型大都身价不菲，注定它难以效力于大众人群。随着环绕声技术的普及，THX标准的制订者美国卢卡斯公司为了拓宽影音市场。

简介：虽然TX—SR803上市至今已一年有余．但它以其出众的性价比。赢得了市场上一致好评。2007伊始．安桥又为我们带来了TX—SR803的升级型号TX—SR804。一部可以升级你听觉的重量之作。