An Approximate Algorithm for a Class of Nonlinear Bilevel Integer Programming

The algorithm for a class of nonlinear bilevel integer programming is discussed in this paper. It is based on the theory and algorithm for nonlinear integer programming. The continuity methods for integer programming are studied in this paper. After simulated annealing algorithm is applied to the upper-level programming problem and the thought of filled function method for continuous global optimization is applied to the corresponding lower-level programming, an approximate algorithm is established. The satisfactory algorithm is elaborated in the following example.     

The Risk Evaluation of the Implement for Enterprise E—Business

In this paper, risk evaluation index system of electronic business is put forward for core manufactures. At the same time, risk evaluation method is established on the basis of fuzzy mathematics and grey theory, and its effectiveness and feasibility are tested in the practical example.     

Nonsynchronous Trading Model and Return Analysis

Nonsynchronous trading is one of the hot issues in financial high-frequency data processing. This paper extends the nonsynchronous trading model studied in [1] and [2] for the financial security, and considers the moment functions of the observable return series for the extended model. At last. the estimators of parameters are obtained.     

A Novel Robust Adaptive Fuzzy Controller

For a class of continuous-time nonlinear system, a novel robust adaptive fuzzy controller is proposed by using of Lyapunov method. It is proven that the control algorithm is globally stable, the output tracking-error can convergence to a domain of zero under the assumptions. As a result, the system controlled has stronger robustness for disturbance and modeling error.     

Global Stabilization of Nonlinear Systems with Byrnes—Isidori Normal Form

1　IntroductionThe problem of the asymptotic stabilization of minimum phase nonlinear systems viasmooth state feedback has been well studied in[1— 6 ].One major methodology is by useof the nonlinear analog of the nonlinear zero dynamics notion so that,un…     

加强对大学生价值取向的教育和引导—对我省高校学生价值取向现状的调查和思考

文中通过对大学生价值取向现状的调查分析，针对学生中存在的问题，就如何加强价值取向的引导和教育进行了讨论。     

上海股票市场半强式有效性实证分析

股票市场的效率性指的是股票市场中股票价格对新信息的反应效率，它是股票市场成熟程度的表现，有效率的市场分为弱式有效市场、半强式有效市场和强式有效市场，通过对上海股市的30家上市公司进行实证研究。得出的结论是：目前上海股票市场非半强式有效。     

生命体的信息调控

生命科学是研究生命体各种现象和本质的科学。生命现象的本质是新陈代谢，它包括生命体内的物质、能量及信息代谢。自１８４０年Ｌｉｅｂｉｇ首次提出新陈代谢（Ｍｅｔａｂｏｌｉｓｍ）的概念，生命科学家们就开始运用物理化学的原理和方法来研究生命体内的新陈代谢，由此...     

试论城市森林的综合效益及其保护对策

概述了城市森林的特性及其生态、经济和社会效益，提出了城市森林建设、管理和保护对策。