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1.
Theissueofoptimaleconomicgrowthistheproblemofoptimalratioinaccumulationandconsumption.Ifthepresentconsumptionistoohigh,theaccumulationwillbelowandthatwilleffecttherapidincreaseoffutureconsumption.Ontheotherhand,ifthepresentaccumulationistoohigh,thep…  相似文献   

2.
Hypertextisaninformationnetworkconstitutedbynodesandrelationallinks,inwhichnoderepresentsconceptandlinkimitatesfreeassociationofmind,thatis,whenmanisthinking,hecantransferhisthoughtfromoneconcepttoanotherrelatedconcept.Dataretrievingalonglinksisoneo…  相似文献   

3.
定义了结合2-分次环的模,并由模定义了结合2-分次环的Jacobson根,证明了这个Jacobson根和A.Sulinski的定义是一致的,并且给出了Jacobson半单的结合2-分次环的结构及Jacobson根的模论特征。  相似文献   

4.
定义了结合2-分次环的模,并由模定义了结合2-分次环的Jacobson根.证明了这个Jacobson根和A.Sulinski的定义是一致的,并且给出了Jacobson半单的结合2-分次环的结构及Jacobson根的模论特征。  相似文献   

5.
设τ是一个挠理论。本文定义了τ-Jacobson环,证明出τ-Jacobson环具有Morita等价不变性,即若模范畴R-mod≈S-mod,则R是τ-Jacobson环,当且仅当S是σ=θ(τ)-Jacobson环。  相似文献   

6.
IntroductionUsingorthogonalfunctionstoconstructoperationalmatricesforsolvingcontrolproblemshasbenofconsiderableinteresttocont...  相似文献   

7.
Thecomparisonofintellectualconceptsoncollegestudentsindifferentmajors¥CaiXiaoyue;ZhuangXiaoning(DepartmentofScientificResearc...  相似文献   

8.
Introduction   总被引:1,自引:0,他引:1  
IntroductionTheConstraintSatisfactionProblem(CSP)wasfirstdevelopedforsetlingtheconstraintbetweendiscretevariables.Manyalgorit...  相似文献   

9.
Itisveryimportantthatthedeterminationofproteinconcentrationsinclinicaltestsandlaboratorypractice.Uptonow,therehavebeenmanyme...  相似文献   

10.
关于利用核爆炸于和平建设的建议SuggestionsonApplyingNuclearExplosiontoPeacefulConstruction¥//何祚庥(中国科学院理论物理所,院士北京100080)最近,中国和俄罗斯从事“和平利用核爆炸”的许...  相似文献   

11.
A Beam Search-based Algorithm for Flexible Manufacturing System Scheduling   总被引:2,自引:0,他引:2  
IntroductionSchedulingasanoperationsplanningproblemisconcernedwiththeallocationofresourcesovertimetoperformvarioustasks.Inaflexiblemanufacturingsystem (FMS)environment,schedul inggainsspecialimportanceduetothehighlevelautomationandconsiderationsofadditi…  相似文献   

12.
Forcenturies,therehasbeenaneverincreasinginterestinthenatureofreadingprocess,andmanyoftheseattemptstodescribetheprocesshavebeeninconflictwitheachother,whichmakesusreaderscon fusedinunderstandingandappreciatingatext,espe ciallyaliteraryone.Traditionall…  相似文献   

13.
HadjidemetriouproposedasystematicmethodtoconstructamappingmodelforaHamiltoniansystem,themainideaistopreservethebasicfeatureof...  相似文献   

14.
龟背竹的组织培养(简报)黄志刚(中心实验室)TissureCultureofMonsteraDeliciosa¥HuangZbigang(LaboratoryCenter)龟背竹(Monsteradeliciosa):天南星科,龟背竹属,又名蓬莱蕉,...  相似文献   

15.
0 IntroductionLiftingschemeasintroducedbyW .Sweldens[1] in 1996 ,isanewwayofconstructingwavelettransformthatnotnecessarilybasedontranslatesanddilatesofonefunction .LiftingallowstheconstructionofwaveletsentirelyinthespatialdomainwithoutmakinguseoftheFouriertr…  相似文献   

16.
IntroductionThekeyofConcurentEngineering(CE)isasystematicapproachtotheintegrated,concurentdesignofproductandtherelatedprocese...  相似文献   

17.
Ourlanguageisinextricablyboundupwithourhu manity.Tobehumanistouselanguageandtotalkistobeaperson.Languageuse,andthewordswhicharein troducedintoalanguage,reflecttheviewsandvaluesofsociety.Alanguageorwordsofalanguagecannotbeeithergoodorbadbutcanonlyviewe…  相似文献   

18.
研究了贵州台下中寒武统凯里组产出的凯里动物群中的Scenella,据其形态,构造及保存特征,认为Scenella应属单板类。指出其与毛家仁等(1994)所定的Scenella radians Babcock et robison 及Babcock和Robison(1988)定的Scenella radians Babcock et Robisan有所区别,据此建立一新种。  相似文献   

19.
Integrated Multi-view Modeling for the Product Development Process   总被引:2,自引:0,他引:2  
1ConcurrentEngineringProductDevelopmentProces(CEPDP)11BackgroundofconcurentengineeringSincethe1980s,concurrentengineering(CE...  相似文献   

20.
Neural network model for the constitutive relations of soil   总被引:1,自引:0,他引:1  
0 IntroductionAccordingtothedifferenttheoriesappliedintheestablishingconstitutivemodel,theconstitutivemodelisgenerallygroupedintotwocategories :elasticmodelandelasto plasticmodel.Asoneoftheelasticmodels,Duncan Chang’smodel[1] iswidelyappliedinengineeringpr…  相似文献   

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