全低变工艺开发应用中的问题与对策

讨论了全低变工艺开发过程中遇到的一些问题和对策,对中、小氮肥企业进行技术改造具有一定的参考意义。     

煤代油工程污水处理工艺的选择

文章通过分析巴陵分公司煤代油工程的污水排放特性及技术条件,探讨了污水处理工艺的选择。     

基于六西格玛流程改进的库存管理优化

库存管理是企业用来控制实际库存问题的方法，主要帮助企业经营者确定何时补充订货、补充订货多少以及安全库存等问题。现有的库存控制研究往往只关注数学建模阶段的精确性，而对库存波动根源认识不足，导致数学模型越来越复杂、完善，但库存仍然居高不下、难以控制。本文针对该问题，提出了在库存管理中糅合六西格玛管理理念的思想，通过六西格玛方法揭示库存积压的根源，从源头着手，进行流程改进，从而达到库存优化、提高客户满意度的目的。文章通过实际案例证实了基于六西格玛理念的库存优化管理的有效性。     

Analysis of cointegrated VARMA processes

VARMA (vector autoregressive moving average) processes are proposed for modelling cointegrated variables. For this purpose the echelon form is combined with the error correction form. Procedures for estimating the Kronecker indices which characterize the echelon form and for specifying the cointegration rank are discussed. The asymptotic distribution of the coefficient estimators is given. An example based o n US macroeconomic data illustrates the procedure and demonstrates its feasibility in practice.     

Assessment of Interjudge Reliability in the Open-Ended Questions Coding Process

In the process of coding open-ended questions, the evaluation of interjudge reliability is a critical issue. In this paper, using real data, the behavior of three coefficients of reliability among coders, Cohen’s K, Krippendorff’s α and Perreault and Leigh’s I _r are patterned, in terms of the number of judges involved and the categories of answer defined. The outcome underlines the importance of both variables in the valuations of interjudge reliability, as well as the higher adequacy of Perreault and Leigh’s I _r and Krippendorff’s α for marketing and opinion research.     

结果质量与过程质量探析

服务营销专家格罗鲁斯认为，服务质量包括两方面内容：结果质量与过程质量。但对于结果质量与过程质量孰轻孰重，是一个在理论上和实际生活中都未能很好解决的问题。文章在回顾相关理论的基础上，认为判断服务结果质量与过程质量孰轻孰重不能一概而论，而应综合考虑行业、顾客和社会文化等因素，将提升服务质量的努力放在不同的方面。     

施工项目管理业务流程存在的问题分析

良好的施工项目管理流程是运用现代化的管理，把项目所需的各种物质和信息进行有机的结合，从而保证项目的顺利实施和项目的实现，但实际工作中却存在一些问题，如：缺少某些重要环节，个别管理流程不明确，致使有关管理工作不到位，有的管理流程颠倒，起不到应有的作用等等，使得施工项目管理流程起不到应有的作用。本文围绕这些问题进行了详尽的分析和探讨，并结合笔者多年的从业经验提出了科学合理的施工项目管理业务流程，具有很强的实践性与可操作性。     

在工程项目管理中实施过程管理的研究

传统的建设过程彼此分裂的特性，严重影响着工程建设的效率性和有效性。本文结合过程管理的思想，分析工程项目实施和管理的系统过程，探讨工程项目管理过程的识别与建立，并在此基础上提出建立工程项目管理的过程模型的方法。     

重心定理在进度控制中的运用

该文主要讲述重心定理的含义以及在进度控制中如何运用它来解决两个平行工序顺序化的问题，并用一个例子说明其步骤，最后给出三条结论。     

An alternative employee rights paradigm: Labor process theory

A dialectical relationship exists between the capitalist desire for accumulation of wealth and profits, and the rights of employees. Labor process theory exposes facets of the fundamental incongruity between the interests of employers and workers in a capitalist political economy. An analysis of employee rights through the labor process framework facilitates the potential for human emancipation by illuminating the ideological, political, and economic sources of domination and repression that are embedded in the capitalist system. In this article, three core elements of labor process theory—the social relations of production, the managerial control imperative, and the restructuring of work—are used to highlight ways in which organizations maintain their hegemonic position. This exposé offers the basis for an alternative paradigmatic view of the employment relationship and informs our thinking of how employee rights are impacted, and often tempered, in work organizations. Portions of this article were presented by both authors at the 12th Annual International Labour Process Conference March, 1994 in Birmingham, England.