排序方式: 共有14条查询结果,搜索用时 718 毫秒
1.
Zhang Xiaozhen female years old professor. Zhang Xiaozhen He Jiang Computer Science Department Southwest Normal University Chongqing 《西南师范大学学报(自然科学版)》1998,(5)
Inobjectorienteddesign(OOD),theconceptofobjectgeneralyreferstotheobjectofaction,whichisitsnaiveEnglishmeaning(The‘object’in... 相似文献
2.
Feng Jiuchao male years old associate professor. Feng Jiuchao Zhou Shu Department of physics Southwest China Normal University Chongqing South China University of Technology Guangzhou 《西南师范大学学报(自然科学版)》1998,(5)
Artificialneuralnetworkhasrecentlyreceivedconsiderableatentionfromvariousresearchfields.Mucheforthasbeenmadetowardstheunderst... 相似文献
3.
由Tresca和双剪应力两轨迹间误差三角形中线确定的屈服方程 总被引:1,自引:2,他引:1
在π平面上,取Tresca屈服轨迹与双剪应力屈服轨迹之间误差三角形的几何中线确定新的屈服轨迹,建立了该轨迹在HaighWestergaard应力空间上的应力方程,称此方程为几何中线屈服方程或简称GM屈服准则·证明了单位塑性功率表达式及其对Mises圆的逼近精度·精度分析与算例表明该准则与Mises准则的最大误差不超过2 9%,平均误差仅为0 95%,比MY(平均屈服)准则的逼近精度提高1%,且它是线性的,其轨迹为与Mises屈服轨迹相交的等边非等角十二边形·该准则的单位体积塑性功率表达式也是线性的· 相似文献
4.
He Ping male years old professor. * Supported by the Netherlands Organization for Scientific Research NWO 《西南师范大学学报(自然科学版)》1998,(5)
ThegenusFusaeawasfoundedbySaford[1]in1914.ThetypespeciesF.longifoliawasoriginalydescribedbyAublet[2]asAnnonalongifolia.Bailo... 相似文献
5.
电磁搅拌对钢坯凝固过程中热工参数的影响 总被引:3,自引:0,他引:3
采用自行设计的单侧冷却凝固实验装置进行了有无电磁搅拌作用下钢坯的凝固实验,并通过计算机数据采集系统对钢坯凝固过程中的各种热工参数进行了实时测试和分析·研究结果表明:施加电磁搅拌以后,钢坯凝固初期的铸型热流量明显增加,促进了铸型内钢液过热的耗散,使得钢坯内的温度分布趋于均匀,降低了凝固前沿的温度梯度·这不仅抑制了柱状晶的发展,同时易于在钢液内部同时形核,有利于等轴晶凝固组织的形成,使得钢坯的等轴晶比率由无电磁搅拌作用下的47%提高到76%·这也说明了电磁搅拌促进钢液中的过热耗散是提高铸坯凝固组织中等轴晶比率的重要原因之一· 相似文献
6.
Li Zhichang male years old professor. Li Zhichang Liu Chiqing Tan Kejun Ren Shaoguang Institute of Applied Chemistry Southwest China Normal University Chongqing Institute of Agricultural Biological Engineering Te 《西南师范大学学报(自然科学版)》1998,(5)
Aminoacidfungicide———homodemycine(HDE),acoppercomplexofseveraldiferentaminoacids,wasrecentlyinvented[1,2].Severalyears’fieldt... 相似文献
7.
Yang Qingyuan female years old associate professor. Yang Qingyuan Department of Urban Science Environment Resources Southwest China Normal University Chongqing 《西南师范大学学报(自然科学版)》1998,(5)
City’sstandardplotsaresomelandblockssetupinaregion,whichlandquality,individualfactors,landusebenefitandpricearerepresentat... 相似文献
8.
Deng Zhaojing male years old professor. Deng Zhaojing Li Jian Department of Physiscs Southwest China Normal University Chongqing 《西南师范大学学报(自然科学版)》1998,(5)
TheEvolutionProcesofAgUFPItiswelknown,thatthestablecompositionformsofAgUFPintheairatroomtemperaturearetheαAgandtheAg2O:w... 相似文献
9.
Wang Jianli male years old associate professor Ph.D. Wang Jianli Zhong Wei Department of Geography Southwest Normal University Chongqing Department of Geography Xinjian University Urumqi 《西南师范大学学报(自然科学版)》1998,(5)
WesternChina,includingtheQinghaiXizangPlateau,theLoesplateau,andtheotherpartwestofthem(suchastheHexicoridorofGansuprovincean... 相似文献
10.
Approximation of fixed points of strict Hemi contraction mapping 总被引:1,自引:0,他引:1
Tang Chunlei male years old associate professor. Tang Chunlei Deng Lei Department of Mathematics Southwest China Normal University Chongqing 《西南师范大学学报(自然科学版)》1998,(5)
Lemma1[1]IfEisauniformlysmoothBanachspace,thereexistsacontinuousnondecreasingfunctionβ(t):[0,∞)→[0,∞)suchthatlimt→0+β(t)=0,β... 相似文献