中小企业竞争力评价指标体系与评价方法的选择

研究的目的是对地区中小企业竞争力如何评价以及采用何种评价方法进行评价提出观点。从外部市场结构学派和企业能力学派的观点出发分析影响企业竞争力的主要因素,构建评价指标体系并对评价方法进行了选择。认为中小企业评价指标体系的构建应从企业经营能力、发展能力和企业所在地区环境影响力出发进行分层次构建并提出了指标构建的原则;认为层次分析法是对中小企业竞争力评价比较有效的方法。     

网络化制造系统中设备资源优选方法的研究

分析了层次分析法的优缺点,并详细介绍了其求解过程。根据成、德、绵区域网络化制造系统的开发实践,针对设备资源的特点,把层次分析法和模糊层次分析法相结合,让模糊层次分析法来解决层次分析法不能解决的问题,它们共同来完成网络化制造系统中的设备资源优选,最后通过实例验证了该方法的可行性和有效性。     

Promotion Routes for Women Engineering Managers

ABSTRACT

Total quality management (TQM) has been increasingly accepted as a management philosophy. Criteria such as those contained in the Malcolm Baldrige National Quality Award (MBNQA) often guide TQM implementation. However, reports indicate that fully assessing TQM efforts is difficult and hiring experts to help with this task is expensive. Using survey instruments is an attractive alternative to full-scale assessment. Despite the availability of many papers covering organizational performance assessment, few instruments specifically address TQM evaluation. Furthermore, none of the TQM assessment instruments has been subjected to rigorous validation; thus, only modest confidence can be placed in results obtained from their use. This article proposes a quick and cost-effective instrument that is a simple questionnaire designed to assist organizations in conducting self-evaluations of their TQM programs. The proposed instrument is based on the seven categories of the MBNQA criteria and was developed in cooperation with the Excellence in Missouri Foundation, which administers the Missouri Quality Award (MQA). This article highlights how questionnaire results can be used to guide further TQM implementation efforts.     

Analytical impact time and angle guidance via time-varying sliding mode technique

To concretely provide a feasible solution for homing missiles with the precise impact time and angle, this paper develops a novel guidance law, based on the nonlinear engagement dynamics. The guidance law is firstly designed with the prior assumption of a stationary target, followed by the practical extension to a moving target scenario. The time-varying sliding mode (TVSM) technique is applied to fulfill the terminal constraints, in which a specific TVSM surface is constructed with two unknown coefficients. One is tuned to meet the impact time requirement and the other one is targeted with a global sliding mode, so that the impact angle constraint as well as the zero miss distance can be satisfied. Because the proposed law possesses three guidance gain as design parameters, the intercept trajectory can be shaped according to the operational conditions and missile׳s capability.To improve the tolerance of initial heading errors and broaden the application, a new frame of reference is also introduced. Furthermore, the analytical solutions of the flight trajectory, heading angle and acceleration command can be totally expressed for the prediction and offline parameter selection by solving a first-order linear differential equation. Numerical simulation results for various scenarios validate the effectiveness of the proposed guidance law and demonstrate the accuracy of the analytic solutions.     

Analytic inversion for a general case of certain classes of matrices

The explicit inverse and determinant of a class of matrices are presented. The class under consideration is defined by 4n ? 2 parameters, analytic expressions of which form the elements of the upper Hessenberg type inverse. These analytic expressions enable recursion formulae to be obtained, which reduce the arithmetic operations to O(n ²). The Hadamard product of two specific structures' matrices provides the class presented, special cases of which are already known classes of test matrices.     

Developing a computer vision method based on AHP and feature ranking for ores type detection

Detection of size, shape and color of minerals are important for obtaining information about minerals. The output of mines is ores which vary in colors and shapes. The multiplicity of ores, large scale features and the importance of speeding up the mineral type detection process for intelligent systems, leads us to rely more on expert's advice and rank the selected available features for type detection, according to their importance. In this paper, to separate different ores and gangue minerals, image processing and computer vision techniques with combination of multi criteria decision making (MCDM) approach are applied. Our method proposes a novel way which combines the image processing techniques and artificial neural networks, with analytic hierarchy process (AHP) approaches to detect different types of ores. By help of experts in feature ranking, the image processing techniques proved to be more effective and prompt. The final results show that the proposed method is more successful in type detection of minerals than the other image processing techniques for ores type detection. Our method is also applicable for real-time systems to estimate minerals at on-line ore sorting and classification stages.     

A new multi-objective optimization method for master production scheduling problems using simulated annealing

Tactic planning or master production scheduling focuses on time and spatial decomposition of the aggregate planning targets and forecasts, as well as, forecast and provision of needed resources. This process becomes extremely hard and time consuming with the increase of number of products, resources and periods considered. In face of such obstacles, this work shows a study of an Artificial Intelligence technique called Simulated Annealing applied to the optimization of production planning problem, more specifically, Master Production Scheduling. This work reviews some of the fundamental theory of simulated annealing, the methodology for master production scheduling calculation, the applicability of simulating annealing to planning problems, most important results and suggestions for further studies.     

AHP-模糊综合评价法在标准实施效果评价中的应用

开展标准实施效果评价能够对标准的实施状况、标准的科学性有一个客观和科学的认识,对标准的制修订工作有重要的指导意义。本文以石油工业标准为研究对象,从标准实施状况、标准实施监督、标准经济效益和标准社会效益4个方面构建了评价体系,综合运用层次分析法(AHP)和模糊综合评价法对标准实施效果进行评价。评价结果表明,该方法可以实现定性分析和定量分析的有效结合,使评价结果更符合实际情况,为标准实施效果评价提供了一种新的思路。     

The analytic network process for managing inter-enterprise collaboration: A case study in a collaborative enterprise network

In the last years, collaboration among enterprises has gained attention in the business environment as a means to remain competitive. Enterprises that are collaborating look for improving their performance but, in real assessments, they often do not establish efficient frameworks to structure and manage the enterprise association/inter-enterprise performance. In addition, there are many factors that act as barriers to effective collaboration and have to be also properly managed as they impact on the inter-enterprise performance. This paper provides a methodology based on the analytic network process (ANP) to identify and measure, under an integrated approach, both factors and inter-enterprise performance considering their reciprocal impact. With this innovative approach, enterprises will obtain significant information for the decision-making process regarding which are the factors and inter-enterprise performance elements that generate a higher impact and therefore have a high priority within the specific collaborative relationship. Thus, enterprises can focus their efforts on improving those most important factors and performance elements, and consequently, enhancing their competitiveness.