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1、烏魯木齊市水磨河水環(huán)境污染特征及成因分析第6卷第3期2006年6月安全與環(huán)境JournalofSafetyandEnvironmentV01.6No,3Jun.2006型難以做到這一點(diǎn).3)通過(guò)建立貼近度優(yōu)化模型,使得聚類(lèi)后不同類(lèi)水質(zhì)監(jiān)測(cè)點(diǎn)的類(lèi)間距離增加,而同類(lèi)水質(zhì)監(jiān)測(cè)點(diǎn)之間的距離縮小.本文模型得到的最優(yōu)貼近度向量為u=(0.1912,0,3566,O.0390.0.1573,0,8890,0,8965,0,3934),而文獻(xiàn)[1]提供的貼近度向量為u:(1.04,0,83,1,61,l,11.0.40,0.38.0.81)3結(jié)論1)內(nèi)河水質(zhì)監(jiān)測(cè)點(diǎn)優(yōu)化布設(shè)應(yīng)該同時(shí)考慮水質(zhì)環(huán)境在時(shí)
2、間和空間上的變化.這樣才能獲得優(yōu)化布設(shè)工作需要的較全面的信息;2)動(dòng)態(tài)貼近度模型消除了引入"標(biāo)準(zhǔn)參考點(diǎn)"帶來(lái)的評(píng)價(jià)水質(zhì)監(jiān)測(cè)點(diǎn)排序不一致的問(wèn)題,定義的貼近度物理意義更加明確;3)貼近度優(yōu)化模型對(duì)最優(yōu)貼近度計(jì)算結(jié)果具有放大作用,因而聚類(lèi)效果明顯提高.References(參考文獻(xiàn)):[1]GUOXiaoqing(郭小青).Optimizedselectioninwaterqualitymonitor.ingofriverinsidethecitybysimilaritymethodfJ3.BulletinofScienceandTechnology(科技通報(bào)),2005,21(3):
3、360.363,[2]LIANGWeizhen(梁偉臻),YEJinnm(葉錦潤(rùn)).Optimizedselectioninwaterqualitymonitoringofriverinsidethecitybycanopyclusteringtechnique[JJ.TheAdministrationandTechniqueofEnvironmentalMonitoring(環(huán)境監(jiān)測(cè)管理與技術(shù)).2002(6):6-7.[3]WANGJing(王靜),Studyonoptimizedselectioninwaterqualitymoni?todngofHuangshuiRive
4、r[J].QinghaiEnvironment(青海環(huán)境),2002(3):27.30.[43QINShoukang(秦壽康).Principalandapplicationofcomprehem~iveevaluation(綜合評(píng)價(jià)原理與應(yīng)用)[M].Beljing:PublishingHouseofElectronicsIndustry,2003.[5]DANGYaoguo(黨耀國(guó)),LIUShifeng(劉世峰),I,IUBin(劉斌),etalStudyongrayincidencedeciskmmodelofthedynamicmultiple-at.tribute[J
5、].EngineeringScience(中國(guó)工程科學(xué)).2005,7(2):69.Dynamicsimilarityanditsapplicationtoopti-mizedlayoutinwaterqualitymonitoringofriverZHANGYi—fei."fANGXiao—lan.ZHANGjian(TheSecondInstituteofOceanography,StateOceanicAdministra,tion;HangzhouGuohaiCoastal&OffshoreEngineeringSurvey,De—sign&Researc
6、hInstitute,Hangzhou310012,China)Abstract:Thepresentpaperaimstointrodueetheauthors'newmodelforwaterqualitymonitoring,i.e.,thedynamicsimilaritymethod.Itiswellknownthatthereexisttwomainproblemswiththecurrentmethodsofoptimallayoutforwaterqualitymonitoringgivenbythevariouspaperssofarpublishedathom
7、e.OneisthatonlytIlechangesofwaterqualityinspatialspaceareconsidered,whilethechangesofwaterqualityintimespherearenottakenjntoaccountatal1.rheotherproblemjsthatthephysicalmeaningofthesimilarityachievedseemstobeiudistinctivewhenthevaluetakeninto
