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企业组织跨边界机理:基于相关理论上的考察

商业经济与管理 2005年第1期 32-36页

作者：汪锋西南交通大学四川成都610031

本文在分析竞争能力、技术发展、分工与专业化理论中有关企业边界及跨边界组织研究的基础上 ,指出核心竞争力理论可为专业化水平选择提供有益的借鉴 :协作生产中的分工经济性是跨边界组织形成的必要条件 ;跨边界组织模式中各个企业的专... 详细信息

本文在分析竞争能力、技术发展、分工与专业化理论中有关企业边界及跨边界组织研究的基础上 ,指出核心竞争力理论可为专业化水平选择提供有益的借鉴 :协作生产中的分工经济性是跨边界组织形成的必要条件 ;跨边界组织模式中各个企业的专业化水平选择取决于外生的由“核心技术”决定的绝对优势和比较优势 ;而后技术便作为内生结果与分工和专业化一起演进。

关键词：跨边界组织交易费用竞争能力理论技术发展理论分工与专业化理论

Studies on the analytical potential energy function of diatomic molecular ion XY^+ using variational method

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Science china(Physics,Mechanics & Astronomy) 2004年第2期47卷 154-164页

作者： LIU Guoyue1,3, SUN Weiguo1,2 & FENG Hao1 1. Institute of Physics, Sichuan university, chengdu 610065, china 2. college of Chemical Engineering, Sichuan university, chengdu 610065, china 3. Mianyang Teacher抯 college, Mianyang 621000, china Correspondence should be addressed to Sun Weiguo (e-mail: weiguosun@*** or guoyueliu@ ***) 1. Institute of Physics Sichuan University 610065 Chengdu China 2. Mianyang Teacher's college 621000 Mianyang China 3. college of Chemical Engineering Sichuan University 610065 Chengdu China

A new analytical potential energy function for diatomic molecular ion XY+ is proposed based on the energy consistent method (ECM). The Coulomb potential included in the new ionic potential contains multipole corrections, converges quickly and is variationally, changeable. The new potential and the ECM are applied to variationally studying the potential energies of eight electronic states of several diatomic molecular ions: the A2π state of CO+, the X2∑ g + state of Li 2 + , the X2∑ g + state of He 2 + , the 12∏u state of Na 2 + , the A2∏u state of N 2 + , the X1∑+ state of KrH+, the X2∑+ state of SiO+ and the A2π state of SO+ ion. The present results agree excellently with the experiment-based Rydberg-Klein-Rees (RKR) potentials, and are superior to the commonly used Huxley-Murrell-Sorbie (HMS) analytical potentials, and are better in some cases than some quantum mechanicalab initio potentials in the ionic asymptotic and dissociation regions.

关键词： potential energy, diatomic ion, electronic state, variational method.

Lattice-Valued Proposition Logic(Ⅱ)

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Journal of Modern Transportation 1994年第1期11卷 22-27页

作者： Qin Keyun Xu Yang( Dept. of Appl. Mathematics, southwest jiaotong university)chengdu 610031,china

In this paper, the syntactical problenss of lattice- valued proptnitional logicsystem LP(X) are discuased , the soundness theorem and the deduction thooremare given, and the adequaey problem of LP(X) is solved with sl... 详细信息

关键词： Lattice-valued proposition algebra fromal proof fromal theorem

大跨度V形刚构拱组合桥V形墩梁节点模型试验研究

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土木工程学报 2010年第3期43卷 99-105页

作者：勾红叶蒲黔辉施洲西南交通大学

对于V形刚构拱组合结构桥梁,其结构本身承力、传力相对复杂,而在小榄水道特大桥主桥V形墩梁结合部,其受力尤其复杂。有必要通过模型试验对其局部应力以及开裂后的非线性受力行为进行研究,从而考察V形刚构拱组合桥设计的合理性,并为同类... 详细信息

对于V形刚构拱组合结构桥梁,其结构本身承力、传力相对复杂,而在小榄水道特大桥主桥V形墩梁结合部,其受力尤其复杂。有必要通过模型试验对其局部应力以及开裂后的非线性受力行为进行研究,从而考察V形刚构拱组合桥设计的合理性,并为同类桥梁提供技术参考。简单介绍了模型的相似和设计原则,对模型的加载工况、加载程序、测点布置等也进行了讨论。重点通过对试验结果的分析以及与数值计算的比较,得出多种荷载工况下V形墩梁节点局部应力分布规律;通过绘制负弯矩区钢筋荷载应变曲线以及模型梁的荷载挠度曲线,对V形墩梁节点的非线性受力行为进行了研究,得出了挠度与裂缝分布规律。研究表明,V形墩梁节点受力合理,具有较好的延性、后续变形和残余承载能力,V形刚构拱组合桥设计合理。

关键词：桥梁工程大跨度V形刚构拱组合桥 V形墩梁节点非线性模型试验

CRITERION FOR JUDGING SATISFACTION OF CONSISTENCY CONDITIONS IN RATE-DEPENDENT CONSTITUTIVE RELATIONS

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Acta Mechanica Solida Sinica 1999年第4期12卷 356-364页

作者： Wang Zhe (college of Civil Engineering and Architecture,Northern jiaotong university,Beijing 100044,china) No jiaotong Univ Coll Civil Engn & Arcitecture Beijing 100044 Peoples R China

Based on irreversible thermodynamics, the criterion for judging the satisfaction of consistency conditions in rate-dependent constitutive relationship is deduced by introducing four basic hypotheses. Formulas for solving internal variables are given. It makes the rate-dependent model applicable no matter whether the consistency conditions can be satisfied or not.

关键词： rate-dependent constitutive relations consistency condition irreversible thermodynamics

A new class of impulse stochastic control models with non-negative control quantity

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Science china(Information Sciences) 2011年第3期54卷 638-652页

作者： LIU XiaoPeng & LIU KunHui college of Science, Beijing jiaotong university, Beijing 100044, china 1. college of Science Beijing Jiaotong University Beijing 100044 China

This paper advances and studies a new class of impulse stochastic control models. Its state structure is defined by a linear stochastic differential equation of the semi-martingale, its control cost function is a twovariable function of pre-control state quantity and control quantity, and its control quantity is kept non-negative. First this paper constructs a new type of variational equations and proves its solution exists. Using a series of stochastic analysis methods to research the solution function of this type of variational equations, this paper proves the existence of optimal control and analyzes its structure in depth. Because of the big difference between the model in this paper and stochastic control models in previous papers, the analysis method here is quite different from previous ones. It is expected that this paper will have important theoretical significance for stochastic control research, along with wide applicative value in finance control and security management.

关键词： impulse stochastic control control quantity variational equation optimal control semi-martingale

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公路收费转移与合理制订收费标准的研究

西南交通大学学报 2002年第1期37卷 65-67页

作者：初克波西南交通大学交通运输学院四川成都610031

公路收费标准的高低直接影响使用收费公路的交通量的大小 ,进而影响项目效益的发挥。为制订合理的收费标准提供理论依据 ,并为收费公路项目的建设提供决策支持信息 ,通过对影响车辆路径选择因素的分析 ,提出直观运营成本的概念。通过对... 详细信息

公路收费标准的高低直接影响使用收费公路的交通量的大小 ,进而影响项目效益的发挥。为制订合理的收费标准提供理论依据 ,并为收费公路项目的建设提供决策支持信息 ,通过对影响车辆路径选择因素的分析 ,提出直观运营成本的概念。通过对收费转移模型的研究与应用 ,提出了合理确定收费公路收费标准的理论方法。

关键词：收费转移直观运营成本公路运输收费标准交通量路径选择项目经济评价

PRESENT AND FUTURE OF SURPLUS LIFE APPRAISE－MENT METHOD　FOR　UNDERGROUND　STRUCTURE

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西部探矿工程 1994年第5期 27-34页

作者： Guan Baoshu, Gao Bosouthwest jiaotong university, chengdu, 610031, china

ＰＲＥＳＥＮＴ　ＡＮＤ　ＦＵＴＵＲＥ　ＯＦ　ＳＵＲＰＬＵＳ　ＬＩＦＥ　ＡＰＰＲＡＩＳＥ－ＭＥＮＴ　ＭＥＴＨＯＤ　ＦＯＲ　ＵＮＤＥＲＧＲＯＵＮＤ　ＳＴＲＵＣＴＵＲＥＧｕａｎＢａｏｓｈｕ，ＧａｏＢｏＳｏｕｔｈｗｅｓｔＪｉ... 详细信息

ＰＲＥＳＥＮＴ　ＡＮＤ　ＦＵＴＵＲＥ　ＯＦ　ＳＵＲＰＬＵＳ　ＬＩＦＥ　ＡＰＰＲＡＩＳＥ－ＭＥＮＴ　ＭＥＴＨＯＤ　ＦＯＲ　ＵＮＤＥＲＧＲＯＵＮＤ　ＳＴＲＵＣＴＵＲＥＧｕａｎＢａｏｓｈｕ，ＧａｏＢｏＳｏｕｔｈｗｅｓｔＪｉａｏｔｏｎｇＵｎｉｖｅｒｓｉｔｙ，...

关键词： structure surplus life structure sound degree structure disease

SiO/CNTs:A new anode composition for lithium-ion battery

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Science china Chemistry 2009年第12期52卷 2047-2050页

作者： REN YuRong1,2,3?,QU MeiZhen1 & YU ZuoLong1 1 chengdu Institute of Organic Chemistry,Chinese Academy of Sciences,chengdu 610041,china 2 college of Chemistry,Jilin Normal university,Siping 136000,china 3 Graduate university of Chinese Academy of Sciences,Beijing 100039,china 1. chengdu Institute of Organic Chemistry Chinese Academy of Sciences Chengdu 610041 China 2. college of Chemistry Jilin Normal University Siping 136000 China 3. Graduate university of Chinese Academy of Sciences Beijing 100039 China

A new anode composition SiO/CNTs (carbon nanotubes) has been prepared by chemical vapor deposition (CVD) method. The results of scanning electron microscopy (SEM) confirm that CNTs deposit on small SiO particles,form a cage,and enwrap SiO particles tightly. SiO/CNTs anode composition exhibits an initial discharge and charge capacity of 1171 and 789 mAh/g,and maintains a reversible capacity of 500 mAh/g after 80 cycles. The improvement of the cyclic performance for SiO/CNTs composition is related to the maintaining of the electric network during cycling,which benefits from a tight contact between CNTs and SiO particles.

关键词： SiO/CNTs CVD composition anode Li-ion battery