共查询到20条相似文献,搜索用时 31 毫秒
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IntroductionGroupDecisionSupportSystem(GDSS)hasbeenanewDSSresearchareasince1980s.NowithasbecomeanimportanttrendofDSS[1,2].AGDSScombinescommunication,computing,decisionsupporttechnologies,andmoderninformationtheorytofacilitateformulationandsolutionofi… 相似文献
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ThebandgapofSi-baseSi1-xGexalloycanchangealongwithcontentxandstrain ,thepeakwavelengthofphotodetectorsfabricatedbyusingthismaterialscanbemodulatedaccord inglyfrom 0 .8μmto 1 .6 μm .Si-baseSiGeinfrareddetectorsarecompatiblewiththeSiverylarge -scaleintegrated (VLS… 相似文献
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化学交联型体温形状记忆聚氨酯研究 总被引:1,自引:0,他引:1
Shapememorypolyurethane (SMPU)isanovelfunctionalpolymermaterial.Inrecentre search ,bodytemperatureSMPUisreceivingmoreandmorespecialinteresting .Bodytempera tureSMPUbelongstosegmentedcopolymer ,whichcanbedeformedintoanyfreeshapeabovetheglasstransitiontemper… 相似文献
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Kun Huang Bang fen Zhu Institute of Semiconductors Chinese Academy of Sciences P. O. Box Beijing China 《清华大学学报》1998,(1)
PolarOpticalVibrationModesinSemiconductorSuperlaticesKunHuang,Bang-fenZhuInstituteofSemiconductors,ChineseAcademyofSciencesP.... 相似文献
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李克莱 《内蒙古大学学报(自然科学版)》1994,25(3):333-340
近10年国外对马铃薯野生种和原始栽培种起源及育种利用研究取得了实质性进展.野生种Solanumdemissum、S.acaule、S.chacoense、S.spegazzinii、S.stoloniferum、S.vernei和原始栽培种S.phureja、S.stenotomum、S.×chaucha均分离出极端抗线虫(Globoderapallida)、抗干腐病(Fusarium)、抗青枯病(Pseu-domonassolanacearum)、抗晚疫病(Phytophthorainfestans)及抗X、Y、L病毒的类型.目前,世界上50%马铃薯品种含有S.demissum血缘. 相似文献
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《西南师范大学学报(自然科学版)》1997,(5)
StudiesoncelcultureandPASreactionofsecretorycelfromSmeridionalisChenZhangPingbo,HongXijunDepartmentofLifeScience,SouthwestC... 相似文献
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《南京大学学报(自然科学版)》1999,(5)
Phosphatidylserine(PS)islocatedpredominantlyintheinnerfaceofthecellmembraneandisnearlyabsentfromtheexternalfaceofthemembraneinbotherythrocytesandplatelets[1,2].TheasymmetricaldistributionofPSisalteredbyplateletactivation,andPSbecomesexposedontheexte… 相似文献
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IdentificationandStructureSelectionforNonlinearStochasticSystems*LuoGuiming(罗贵明)DepartmentofAppliedMathematics,TsinghuaUniver... 相似文献
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SinceWhiteobservedthatsprayingtobaccoplantswithsalicylicacid (SA)oracetylsalicylicacidinducedresistancetoinfectionwithtobaccomosaicvirus[1] ,manyexperimentshavedemonstratedthatSAplaysanimportantroleinplantdiseaseresistance ,actingasanendogenoussignalmolec… 相似文献
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IntroductionSchedulingisoneofthemostimportantisuesintheplanningandoperationofmanufacturingsystems.Sincemostschedulingproblems... 相似文献
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《暨南大学学报(自然科学与医学版)》1998,(6)
aderA.(AIDS-HilfeStutgarte.v.70193Stutgart)EineschweredurchAnsteckungübertragbareSchwchungdeskrpereigenenAbwehrsystemsWirklre... 相似文献
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IdentificationofEquivalentStifnesParametersofHoneycombSandwichShelUsingDetailedCelStructureAnalysis*YaoZhenhan(姚振汉),QuShishen... 相似文献
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ExtensionsofFarkas┐Minkowski’sLemmaandStiemke’sLemmaintheSpacel1*ZhangShunming(张顺明)SchoolofEconomicsandManagement,TsinghuaUni... 相似文献
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IntroductionThesixspherical prismatic spherical(6SPS)parallelmech anismisgenerallyemployedina 6DOFsimulator (Fig .1) ,whichisthewell knownStewartplatform[1] .Itconsistsofamo bileplatform ,afixedbaseandsixextensiblerods.Sphericaljointsareusedtojointhesixrodswithth… 相似文献
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Antibacterial Effects of Silver Loaded Hydroxyapatite 总被引:6,自引:0,他引:6
IntroductionIthaslongbeenknownthatsilveranditscompoundhavestronginhibitoryandbiocidaleffectsonbacteria[1] .SpadarofoundthatsilverionhadabiocidaleffectonasmanyassixteenkindsofbacteriaincludingEscherichiacoliandStaphylococcusaureus.Thismeansthatithasabroa… 相似文献
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IntroductionSchedulingasanoperationsplanningproblemisconcernedwiththeallocationofresourcesovertimetoperformvarioustasks.Inaflexiblemanufacturingsystem (FMS)environment,schedul inggainsspecialimportanceduetothehighlevelautomationandconsiderationsofadditi… 相似文献
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实验空间化学──材料科学、场化学与空间化学的交叉ExperimentalSpaceChemistry──AnInterdisciplineofMaterialsScience,FieldChemistryandSpaceChemistry¥//萧小月... 相似文献