共查询到20条相似文献,搜索用时 15 毫秒
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Xiong Dasheng Du Dongyao Department of Mathematics Southwest China Normal University Chongqing Financial Section Sichuan Union University Chengdu 《西南师范大学学报(自然科学版)》1999,(5)
Theissueofoptimaleconomicgrowthistheproblemofoptimalratioinaccumulationandconsumption.Ifthepresentconsumptionistoohigh,theaccumulationwillbelowandthatwilleffecttherapidincreaseoffutureconsumption.Ontheotherhand,ifthepresentaccumulationistoohigh,thep… 相似文献
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Zhou Zhurong Zhang Xiaozhen Department of Computer Science Southwest China Normal University Chongqing 《西南师范大学学报(自然科学版)》1999,(5)
Hypertextisaninformationnetworkconstitutedbynodesandrelationallinks,inwhichnoderepresentsconceptandlinkimitatesfreeassociationofmind,thatis,whenmanisthinking,hecantransferhisthoughtfromoneconcepttoanotherrelatedconcept.Dataretrievingalonglinksisoneo… 相似文献
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陈一宏 《东北师大学报(自然科学版)》1995,(4):23-25
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
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陈一宏 《东北师大学报(自然科学版)》1995,(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
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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
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Haar Wavelet and Its Application in Optimal Control of Linear Time-invariant Systems 总被引:1,自引:1,他引:0
LIU Xiangqian 《清华大学学报》1999,(1):1307-1310
IntroductionUsingorthogonalfunctionstoconstructoperationalmatricesforsolvingcontrolproblemshasbenofconsiderableinteresttocont... 相似文献
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Thecomparisonofintellectualconceptsoncollegestudentsindifferentmajors¥CaiXiaoyue;ZhuangXiaoning(DepartmentofScientificResearc... 相似文献
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Introduction 总被引:1,自引:0,他引:1
IntroductionTheConstraintSatisfactionProblem(CSP)wasfirstdevelopedforsetlingtheconstraintbetweendiscretevariables.Manyalgorit... 相似文献
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Interactions of pyrogallol red with proteins and the determination of proteins by resonance light-scattering 总被引:2,自引:0,他引:2
Hu Xiaoli female years old instructor. * Supported by the National Natural Science Foundation of China 《西南师范大学学报(自然科学版)》1998,(5)
Itisveryimportantthatthedeterminationofproteinconcentrationsinclinicaltestsandlaboratorypractice.Uptonow,therehavebeenmanyme... 相似文献
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何祚庥 《科技导报(北京)》1996,(3)
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
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IntroductionSchedulingasanoperationsplanningproblemisconcernedwiththeallocationofresourcesovertimetoperformvarioustasks.Inaflexiblemanufacturingsystem (FMS)environment,schedul inggainsspecialimportanceduetothehighlevelautomationandconsiderationsofadditi… 相似文献
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LIUXiao- juan 《井冈山学院学报》2001,(2)
Forcenturies,therehasbeenaneverincreasinginterestinthenatureofreadingprocess,andmanyoftheseattemptstodescribetheprocesshavebeeninconflictwitheachother,whichmakesusreaderscon fusedinunderstandingandappreciatingatext,espe ciallyaliteraryone.Traditionall… 相似文献
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SunYisui ZhouJilin 《南京大学学报(自然科学版)》1998,(4):497-498
HadjidemetriouproposedasystematicmethodtoconstructamappingmodelforaHamiltoniansystem,themainideaistopreservethebasicfeatureof... 相似文献
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黄志刚 《石河子大学学报(自然科学版)》1995,(1)
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
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Yang Yan He Chu Liao Ya |li Cao Yang Qin Qian |qing .School of Electronic Informatio n Wuhan University Wuhan Hubei China .The State Key Laboratory of Cartographical Remote Sensing Information Engineering Wuhan Univer sity Wuhan Hubei China 《武汉大学学报:自然科学英文版》2003,8(1):74-76
0 IntroductionLiftingschemeasintroducedbyW .Sweldens[1] in 1996 ,isanewwayofconstructingwavelettransformthatnotnecessarilybasedontranslatesanddilatesofonefunction .LiftingallowstheconstructionofwaveletsentirelyinthespatialdomainwithoutmakinguseoftheFouriertr… 相似文献
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HUANG Chun-ying 《玉林师范学院学报》2001,22(2):86-87
Ourlanguageisinextricablyboundupwithourhu manity.Tobehumanistouselanguageandtotalkistobeaperson.Languageuse,andthewordswhicharein troducedintoalanguage,reflecttheviewsandvaluesofsociety.Alanguageorwordsofalanguagecannotbeeithergoodorbadbutcanonlyviewe… 相似文献
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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
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Neural network model for the constitutive relations of soil 总被引:1,自引:0,他引:1
Zeng Jing Wang J ing |tao School of Civil Engineering Mechanics Huazhong University of Science Technology Wuhan Hubei China 《武汉大学学报:自然科学英文版》2003,8(1):86-90
0 IntroductionAccordingtothedifferenttheoriesappliedintheestablishingconstitutivemodel,theconstitutivemodelisgenerallygroupedintotwocategories :elasticmodelandelasto plasticmodel.Asoneoftheelasticmodels,Duncan Chang’smodel[1] iswidelyappliedinengineeringpr… 相似文献