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内时塑性一致切线刚度法及在胀形中的应用

塑性工程学报 2004年第1期11卷 9-12页

作者：江五贵扶名福南昌航空工业学院材料科学与工程系南昌330034 南昌大学南昌330029

介绍了位移基有限元方法 ,并在位移基有限元中嵌入了无屈服面内时本构理论 ,并提出了相应于平面应力问题的直接代入法。在求解所得到的非线性方程中 ,由于得到的非线性方程在解的邻域内高度病态 ,Newton方法收敛性得不到保证 ,采用全局... 详细信息

介绍了位移基有限元方法 ,并在位移基有限元中嵌入了无屈服面内时本构理论 ,并提出了相应于平面应力问题的直接代入法。在求解所得到的非线性方程中 ,由于得到的非线性方程在解的邻域内高度病态 ,Newton方法收敛性得不到保证 ,采用全局收敛的二分法可以得到很好的解。利用推导出的位移基内时本构有限元模拟了半球形冲头胀形问题 ,并把它的解与Mises屈服模型的解进行了比较 ,两者吻合较好 ,表明了本文方法是正确与可靠的。本文在位移基有限元中成功地嵌入了内时本构模型 ,并成功地模拟了半球形冲头胀形问题。同已有的本构模型相比 ,本文模型非常简明 ,并且易于应用。

关键词：内时位移基有限元切线刚度胀形

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深度学习促发素养生成的过程机制与实现路径

开放教育研究 2024年第5期30卷 36-46页

作者：杨南昌覃稔梁慧芳刘晓艳江西师范大学教育研究院江西南昌330022 江西师范大学教育学院江西南昌330022 江西师范大学新闻与传播学院江西南昌330022

在素养导向的教育教学改革中,教师常面临“传授知识还是发展素养”的两难选择。事实上,知识和素养并非两极对立的,关键是如何“化知识为素养”。深度学习作为“过程-结果”的统一体,为核心素养落地提供了有效路径。基于现有文献和学习... 详细信息

在素养导向的教育教学改革中,教师常面临“传授知识还是发展素养”的两难选择。事实上,知识和素养并非两极对立的,关键是如何“化知识为素养”。深度学习作为“过程-结果”的统一体,为核心素养落地提供了有效路径。基于现有文献和学习科学理论视角,本研究认为深度学习促发“素养生成”是以“知识—素养—行动”为主线、学习者内部认知与外部环境相互作用的过程。其前提是设计基于情境活动的学习经历,通过“情境化与去情境”的迭代学习不断优化学习者面向迁移的认知模型。因此,教师应抓住深度学习“化知识为素养”的内在机制和关键路径,创建技术赋能的真实性学习环境,开展面向迁移和专家思维发展的情境化教学,实施基于整合情境的素养评价,推进课堂教学从传统“知识本位”向“素养导向”的变革。

关键词：深度学习素养生成机制与路径真实性学习情境化与去情境

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Stabilization for discrete-time fuzzy systems with Takagi-Sugeno's models:reduce the complexity

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Science China(Information Sciences) 2010年第12期53卷 2506-2513页

作者： WANG LiKui 1 & LIU XiaoDong 2 1 School of Mathematics and Information Science,nanchang Hangkong University,nanchang 330063,China 2 Research Center of Information and Control,Dalian University of technology,Dalian 116024,China School of Mathematics and Information Science Nanchang Hangkong University Nanchang China Research Center of Information and Control Dalian University of Technology Dalian China

The problem of sate feedback control for discrete-time fuzzy systems with Takagi-Sugeno's models is investigated to reduce the computational burden.A stabilization condition is obtained by applying a new Lyapunov *** is shown that our new theorem is equivalent to an existing result in guaranteeing the stability of the fuzzy system but consumes less computational time than the *** effectiveness and the superiority of the proposed design approach are demonstrated by an example borrowed from the literature.

关键词： Takagi-Sugeno’s fuzzy model non-quadratic Lyapunov function linear matrix inequality

Research on the Logistics Outsourcing Based on E-commerce

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Research on the Logistics Outsourcing Based on E-commerce

2011 International Conference on Business Management and Electronic Information(BMEI 2011)

作者： Guoping JI Wenhui LIU School of Business Administration.nanchang institute of technology nanchang institute of technology NIT nanchang City Jiangxi Province China

The logistics outsourcing is one kind of enterprises’ developing strategy pattern which is developed quickly at ***,the article analyzed the intrinsic relationship of ecommerce logistics ***,the author described the main problems in the logistics outsourcing based on e-commerce via the survey and case analysis ***,based on the above analysis,the author explored the effective strategies of the logistics outsourcing based on *** article is of great help to provide some ideas of the logistics outsourcing based on ecommerce.

关键词： Logistics outsourcing E-commerce Effective strategies

Applying Genetic Algorithm in Optimal Allocation of Water Resources Based on Water Rights

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Applying Genetic Algorithm in Optimal Allocation of Water Re...

2009中国控制与决策会议

作者： Ling Heliang~1 Gui Faliang~2 1 Department of Science of nanchang institute of technology Jinagxi nanchang 330099 2 Department of Hydraulic Engineering of nanchang institute of technology Jinagxi nanchang 330099

＜正＞The model of the multi-objective optimal allocation of water resources with government system of water rights is a bi-level programming *** function of water trade price is difficult to determine,and some factors are interactive such as water price,coefficient of water-saving and objective function,whose relationships are rather complex,so that it is attractive to study the model *** this paper,the solution to the bi-level programming model of the optimal allocation of water resources is put forward,in which the upper-level programming is solved by genetic algorithm and the lower-level programming is solved by simplex method,the values about water trade price and coefficient of water-saving are assigned via random-points in a certain *** results show that the solution is reasonable,and it has been made great progress in ideas and methods to solve this model.

关键词： Water Resources Allocation Bi-level Programming Optimization Genetic Algorithm

Polymorphisms of three gene-derived STS on pig chromosome 13q41 are associated with susceptibility to enterotoxigenic Escherichia coli F4ab/ac in pigs

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Science China(Life Sciences) 2008年第7期51卷 614-619页

作者： HUANG Xiang 1 ,REN Jun 1 ,YAN XueMing 1,2 ,PENG QiuLing 1 ,TANG Huan 1 ,ZHANG Bo 1 ,JI HuaYuan 1 , YANG ShuJin1&HUANG LuSheng 1 1Key Laboratory for Animal Biotechnology of Jiangxi Province and the Ministry of Agriculture of China,Jiangxi Agricultural University, nanchang 330045,China 2Department of Biology,nanchang University of Science and technology,nanchang 330038,China Key Laboratory for Animal Biotechnology of Jiangxi Province and the Ministry of Agriculture of China Jiangxi Agricultural University Nanchang China Department of Biology Nanchang University of Science and Technology Nanchang China

Neonatal diarrhea caused by enterotoxigenic Escherichia coli(ETEC)F4 is a common and serious disease,resulting in significant economical loss in the pig *** locus encoding ETEC F4 receptor has been mapped to pig chromosome(SSC)13q41,and one of the most significantly linked markers is *** this study,we selected three genes including SLC12A8,MYLK and KPNA1 from a chromosomal region flanking S0075 on SSC13 to develop pig specific sequence tagged sites(STS). Seven single nucleotide polymorphisms were identified in the three pig STS using DNA of four full-sib susceptible and resistant animals in a White Duroc×Erhualian *** grandparents,parents and 755 offspring in the intercross were genotyped for three polymorphisms,including SLC12A8 g.159A>G,MYLK g.1673A>G and KPNA1 g.306A>***-based transmission disequilibrium test(TDT) revealed that all polymorphisms and the corresponding haplotypes are significantly associated with ETEC F4ab/ac(especially F4ac)brush border adhesion phenotypes,indicating that these polymor- phism are in linkage disequlibrium with causal mutation(s)of the gene encoding ETEC F4ab/ac receptor. Our results strengthen the evidence for the involvement of SSC13q41 in high acquiring risk of ETEC F4ab/ac infection,and provide novel polymorphic markers for fine mapping of the ETEC F4ab/ac receptor locus.

关键词： pig SSC13q41 sequence tagged sites(STS) Escherichia coli(ETEC)F4ab/ac susceptibility

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新型汽压式太阳水泵的试验研究

太阳能学报 1987年第4期8卷 373-379页

作者：杜振考南昌市节能技术研究所

本文报道了NSP-1型双缸太阳水泵的工作原理,对吸水深度及吸程稳定性进行了分析。理论分析和试验结果一致。

关键词：吸程太阳恒星汽压热力学性质水泵化工用泵乏汽压力试验研究

Performance S tudy for Java Virtual Machine In Embedded Systems

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Performance S tudy for Java Virtual Machine In Embedded Syst...

2010 International Conference on Bio-inspired Systems and Signal Processing(ICBSSP 2010)

作者： Liu Wenjun School of Information Engineering nanchang institute of technology(NIT) nanchang 330099 China

Real time specification for Java（RTSJ） is intended for Real-time embedded *** this study,we present the architecture of a typical JVM,from the first generation,Interpreter architecture,to newest architecture,Just in... 详细信息

关键词： Real time Virtual Machine Java RTSJ

对中国男篮参加第12届世锦赛进攻速度、成功率的研究

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体育科学 1997年第2期17卷 36-40页

作者：谢伦立南昌航空工业学院南昌330034

篮球比赛进攻速度是进攻过程进行的快慢。获球方式是影响进攻的条件;技、战术水平是影响进攻的主要原因;进攻的结束方式对进攻速度没有影响。进攻的失误、违例、犯规使进攻成功率下降;造成对方防守犯规、投篮命中使进攻成功率上升。中... 详细信息

篮球比赛进攻速度是进攻过程进行的快慢。获球方式是影响进攻的条件;技、战术水平是影响进攻的主要原因;进攻的结束方式对进攻速度没有影响。进攻的失误、违例、犯规使进攻成功率下降;造成对方防守犯规、投篮命中使进攻成功率上升。中国队进攻成功率低的主要原因是投篮命中率低和前场的失误、违例、犯规多造成的,而投篮命中率低则是因近投命中率低。随着进攻速度的由快到慢,进攻成功率呈逐渐下降的趋势,但在进攻成功率下降过程中,处在阵地进攻的范围,成功率有2次回升。

关键词：篮球运动进攻速度进攻成功率

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