对“齐王赛马”问题的求解

“齐王赛马”是一个典型的对策论例子,本文运用线性规划法对其进行全面求解。     

混凝土面板堆石坝面板分期施工的结构计算

混凝土面板堆石坝技术在我国发展很快，由于这种坝本身具有十分复杂的结构，在许多方面还未能取得足够的认识，研究任务十分艰巨。本文根据对实际工程所完成的计算研究，着重对面板堆石坝分期施工，分期蓄水时面板的受力及变形特性进行分析，指出了对高专分期施工的必要性，以及采用设置水平施工缝等措施来防止面板产生裂缝。     

The scope of application of management accounting methods in Polish enterprises

The transformation of Poland’s economic system in the 1990s as a result of transition from a centrally planned economy to a market-based system involves significant changes in the regulatory context and in accounting practice and education.This paper presents the scope of application of management accounting concepts and methods in 60 Polish enterprises covered by a questionnaire survey carried out by the author between November 1998 and December 1999 in enterprises located in central and southern Poland. The selected companies were interviewed by means of a postal survey, with inquiry forms delivered in person in some cases.The detailed analyses carried out in this paper and the conclusions presented are also based on information obtained from documentary evidence kept by the enterprises and from direct interviews conducted in the course of work in teams engaged in analysis and assessment of cost accounting practices and in management accounting system design in a number of large and medium Polish enterprises.The empirical research carried out is aimed at verification of a number of hypotheses including the following: • modification of cost accounting systems and implementation of management accounting tools in Polish enterprises is brought about by many different factors, the most important being growth of competition and ownership changes in business entities, • Polish enterprises mostly implement the methods and techniques of operational management accounting, • short-term budgeting for cost centres is the most widely used method of management accounting.     

东亚货币一体化中的中日韩货币组合选择

本文对东亚货币一体化的研究建立在最优货币区理论和OCA指数计量模型的基础上，目的在于判断东亚经济中起主导作用的中日韩三国是否可能展开双边或者多边的货币合作。经测算发现，在排除了原模型中部分不适用的决定因素后，中日韩三国货币的共同组合似乎是比较合适的选择。     

内蒙古包头市黄河灌区工程节水量计算

采用渠道衬砌前后单位长度渗漏损失差值计算工程节水量的方法,对内蒙古包头市黄河灌区实施渠道衬砌后进行计算,灌区总节水量8 310.01万m3,其中镫口灌区节水量4 709.06万m3,民族团结灌区节水量3 600.95万m3。灌区渠系水利用系数由现状的0.58提高到0.749,农田灌溉水利用系数由现状的0.41提高到0.674。该方法旨在为全面实施用水总量控制、提高农田灌溉水有效利用系数提供借鉴。     

基于DSI技术的水库静态库容快速计算

基于DSI技术的水库静态库容快速计算是通过采用DSI三维技术快速构建不规则三角网地形模型,再结合库容自动计算模块快速输出库容计算成果。该方法通过地形数据快速、准确地计算出不同蓄水位的水库静态库容及对应的蓄水面积,自动生成水位-库容-面积曲线,克服了现有水库静态库容计算中的缺点和不足,在水库静态库容计算领域提供了一种新的技术方案。     

绿水评估方法研究进展

在回顾绿水量计算方法的基础上,阐述了水分平衡法、植物生理学法、微气象学法、模型法、遥感法及仪器法的适用条件和特点,认为遥感信息支持下的微气象学法和模型法实际可操作性更大;提出了绿水计算面临的两个关键问题是时间和空间尺度、生产性绿水与非生产性绿水的分离,分析了气候变化和下垫面景观变化对绿水评估的影响,同时展望了绿水评估对水资源一体化管理的应用前景。     

村镇供水工程设计中计算要点总结分析

本文对小型村镇供水工程设计中需要进行的供水规模、管道、结构计算和设备选型问题进行了总结归纳,分析了计算重点,明确了重要的影响因素。     

均匀内水压力作用下圆形混凝土衬砌隧洞配筋设计探讨

基于对规范隧洞衬砌结构设计方法的分析探讨,考虑实际隧洞衬砌配筋应力状况,提出便于设计者进行均匀内水压力下圆形混凝土衬砌隧洞结构计算分析方法。按照此方法进行隧洞衬砌设计,计算过程简单清晰,设计分析结论明确,可以满足工程设计要求。