Abstract:A new method, based on the direct method of weighting multiple normal distri butions, is proposed to evaluate the production costs of two interconnected systems. It can be applied in calculation of expected power generation, reliability indexes and production coats of two interconnected systems without their load correlation. The effect of the linking line on the interconnection is also studied.

Abstract:This paper discusses the problem of long-range generation expansion planning. A dynamic model for long-range expansion planning is set up and an algorithm-a two-step programming is presented, which is used here in a case.

Abstract:Fuzzy decision was applied to the generation expansion planning and a method of fuzzy decision of generation expansion planning has been presented in this paper.

Abstract:After analyzing the ten-year load data of a real power system, a novel method, with the help of Edgeworth progression has been developed to determine the representative daily load curve, which is useful in power generation planning. The method is successful to avoid the random and subjective factors in the exiting method of curve-making.

Abstract:This paper combines the energy input-output model with an optimal bicriterion model, and uses the grey system theory to set up an optimal bicriterion grey input-output(OBGIO)model. This paper also put forward some amendments to bicriterion algorithm. Finally, the OBGIO model is used to optimize the energy economic structure of a city, and analyze its potentiality on the structural energy saving.

Abstract:This paper and studied the energy economy in the light of the system theory and method. An energy input-output table has been compiled and an energy input-output model has been set up to analyse in a broad sense the energy consumption in Chongqing with a new generalized method.

Abstract:根据我国电价现状,利用微观经济学基本原理,分析平均成本和边际成本两种定价制的优缺点,阐明边际成本定价的科学性。同时,论证了边际成本制订丰枯电价的合理性,为电价的科学决策提供理论依据。

Abstract:基于实际输电网运行方式的多样性,提出了输电费用法潮流在安全经济扩展网络规划优化中具有较直流潮流更优的分布方案——这与人们长期以来的观点是相悖的,从而经其使用方法的改进为得到技术上可行、经济上更优的规划方案提供了可能。以此为基础,整个规划过程可分为初选网络、扩展网络和安全扩展网络三步相连的协调计算过程。该方法已在某省电网规划中应用,并经IEEE6节点实验系统的计算分析,表明了方法的优势和实用性。

Abstract:A pricing method of depletable nonrecyclable resources has been advanced in this paper. Prices of resources, made with the method, can meet the needs of depletable nonrecycclable resources optimum allocation.

Abstract:In present paper, a system dynamics model of Rural electrification in small-hydroelectric area was designed by using the principle of system dynamics. The model provides a scientific basis for computer emulation and simulation, and it can be used to analyze the policies on rural electrification.

Abstract:After expounding the principles of primary component analysis, the authors have calculated and analyzed on computer, about twenty technical and economic data of rural electrification in zhejiang province, and found out the key factors which influence the rural electrification in china. According to the research results, the authors forecast the developing trend of rural electrification in our country.

Abstract:Rural electrification is the only way for the countryside to get rid of economic poverty and to achiev a stable and coordinated development. But since the relations between the local small electric network and the state big one have not been straightened out, the development of rural electrification has not yet rapidly gone ahead. This paper analyzed this unsolved problem and suggested an assumption of setting up some local stock power companies, so as to have a possibility to solve the problem completely.

Abstract:ABSTRACT This paper discusses the most representative and practical quantitative evaluation methods of direct investment environment at home and abroad, analyses them deeply and comprehensively in the form of comparative study, and points out some further studying perspectives of the quantitative methods of direct investment environment.

Abstract:分析了多马公债债务负担模型成立的条件,提出了不同发行模式下公债的合理数量界限,该界限是一个相对于国民收入增长率的数量界限。希望能为合理控制公债发行提供理论基础。

Abstract:Products in enterprises are various in specifications. In order to get better benefits, it is essential for the managers of these enterprises to make right decisions for adjusting the stock structure of products. This paper develops a new modil system, which includes a series of interactive models, such as quatitative analysis, balance and evaluation models etc, and provides a frame for using these models to support the decision-making of product structure adjust.

Abstract:The relationship between value Engineering and technology innovation was studied in the paper, and the thinking process and basic working procedure were farther discussed. The theory and application of Value Engineering got farther improvement.

Abstract:This paper analysed the four forms of the cyclical fluctuation in business in our country: trade, administrative, product and managerial cyclical changes, and studied how to construct the models of residual method and pressure analysis method and with which to predict the business cycles.

Abstract:In harmony with the development of reform, this article further studies the prerequisite of cyclical acceleration between economy and technology in a market economy system. It draws the conclusion that an owner control right promotes the cyclical acceleration in both economy and technology, with the way of combination of qualitative and quantitative methods.

Abstract:This paper points out the shortcoming of the existing project break-even analysis method. A new improved method-the dynamic project break-even analysis method has been put forward.

Abstract:提出了一个支持企业管理者进行综合决策的模型系统,并介绍了模型间的相互关系及模型的组合调用方法。以此模型系统为核心的DSS能够解决企业的系统优化和综合平衡问题。

Abstract:Based on the network planning model developed by the author for an overhaul project of a rolling mill production line in a heavy steel plant, an new multiobjective network planning model is proposed in this paper. The formulations of network time parameters are derived. The optimization problem of multiobjective network planning is also discussed. And it has been found out that the fractional single-objctive network is only one of the cases in this model.

Abstract:This paper proposes a model framework, which describes the function requirements and the common characterstics of vehicle transport management. With the frame, a computer vehicle transportation managerment information system(QCMIS)is in troduced here and it has already been put into practice. The key technical points is also explained in the paper.

Abstract:In this paper, an optimization model is designed for regulating alloy elements during steelmaking process, and a real-time computer software system has been developed based on the characteristics of alloy steelmaking. The results indicate that the system is of good operation performance, remarkable economical benefits and higher application value.