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规范科学的考评是社会主义市场经济条件下建设高素质企业经理人队伍的重要环节。在一个考评过程中的一些重点往往是与难点联在一起的。章结合企业经理人的考评工作实际,用系统分析的方法,提出解决若干考评难点问题的基本思路和操作方法。 相似文献
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在分析国有企业并购中凸显问题的基础上,构建了国有企业并购多属性拍卖决策的属性集,提出了基于Vague集理论的国有企业并购多属性拍卖决策的一般模型。该决策模型相较传统的模糊集决策模型更具灵活性和实用性,为国有企业并购多属性拍卖决策提供了一种新的思路,总结提炼了国有企业并购多属性拍卖的决策控制要点。 相似文献
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A two-parameter high-pressure equation of state (EOS) is derived on the basis of the lattice potential theory using the concept of a short-range force constant as introduced by Born and Huang. The application of the EOS to some solids is presented and compared with the Birch?CMurnaghan (BM) third-order EOS, the BM fourth-order EOS, and the Vinet EOS. A comparison of the results provides a crucial test for the EOSs used in this article. 相似文献
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《Chemometrics and Intelligent Laboratory Systems》2001,55(1-2):13-22
The factor analysis problem can be conceptualized as an expansion of polynomial equations that are solvable using least-squares methods. The equation-oriented system (EOS) is introduced as a method for solving polynomial equations using a preconditioned conjugate gradient (CG) algorithm for the normal equations. EOS is a fast, easy to program, low computer memory requirement method for accomplishing this task. EOS can be used to solve multilinear and PARAFAC problems. The practical aspects of implementing EOS in MATLAB are discussed. 相似文献
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企业产品标准的编制,除形式上要严格遵守GB/T1.1—2009的要求外,与之相关的技术性要求也应重视。本文根据《企业产品标准管理规定》的具体要求,结合日常业务工作实际,对近年来企业产品标准编制过程中一些常见技术性问题进行归纳和分析,并针对性地提出了相关对策和建议。 相似文献
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企业资源需求建模及其资源规划分析 总被引:5,自引:1,他引:4
分析了目前国际上各种企业资源建模方法,提出企业资源建模的过程框架,构造了企业资源能力描述模板,建立了基于过程分解的企业资源需求模型及其分析方法,针对企业经营管理目标提出了企业资源规划决策的规则。 相似文献
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Kathleen S. Holian 《International Journal of Impact Engineering》1990,10(1-4):231-239
When a metal projectile hits a thin metal plate at a high enough velocity to penetrate it, a cloud of debris is produced, whose structure for normal impacts provides a unique test for hydrodynamic computer simulation. Since the equations of state (EOS) of the materials involved are a vital ingredient for hydrocode calculations, we would like to determine how important it is to use an accurate EOS. This paper reports results of benchmark calculations of hypervelocity impacts of a lead sphere on a lead plate where significant vaporization occurs. The results are somewhat sensitive to the EOS used, particularly in the regime where the material is expanded. The results are greatly affected when an attempt is made to include nonequilibrium effects by allowing negative pressures in the EOS. 相似文献
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现代企业制度和优化企业管理 总被引:1,自引:0,他引:1
首先描述上海工业企业通过诸如资本结构等5个方面的变化建立了现代企业制度,并从例如新型产品结构等5个方面来考察接着实施的创新和发展。继之列举了体现以上两部分成果的总量指标,并提出了今后的目标。最后,指出了有待解决的尚存在的问题。 相似文献
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In this study we propose an operating conditions-based preventive maintenance (PM) approach for computer numerical control (CNC) turning machines. A CNC machine wears according to how much it is used and the conditions under which it is used. Higher power or production rates result in more wear and higher failure rates. This relationship between the operating conditions and maintenance requirements is usually overlooked in the literature. On CNC turning machines we can control the machining conditions such as cutting speed and feed rate, which in turn affect the PM requirements of the CNC machine. We provide a new model to link the PM decisions to the machining conditions selection decisions, so that these two decision-making problems can be solved together by considering their impact on each other. We establish that our proposed geometric programming model captures the related cost terms along with the technological restrictions of CNC machines. The proposed preventive maintenance index function can be used to provide an intelligent CNC machine degradation assessment. 相似文献
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文章从包装企业信息化的概念入手,分析了我国包装企业信息化面临的突出问题;从联合电子商务平台及联合数据库、企业Intranet、企业信息数据库系统、虚拟经营系统、业务流程再造系统等方面论述了包装企业信息化建设的基本框架,并提出了包装企业信息化过程中需要注意的若干要素. 相似文献
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The Soave–Redlich–Kwong (SRK) equation of state (EOS) is used to describe vapor-liquid (VLE) and vapor-liquid-liquid (VLLE) equilibria of mixtures containing environmentally friendly refrigerants (hydrofluorocarbons, HFCs) and lubricant oils (polyalkylene glycols, PAGs and polyol esters, POEs) at high pressures. For refrigerants, pure component parameters are used as they were found in refrigerant properties computer program Version 6.0 of REFPROP. For the PAG and POE oils, they are either predicted by group contribution methods or obtained from thermodynamic data. Extension to mixtures is performed by using the conventional quadratic mixing rule with only one parameter for each binary pair. The binary parameters are regressed from VLE experimental data available in the literature and subsequently used for prediction of VLLE. All results of the calculations are discussed, and the necessary parameters for prediction of thermodynamic properties of these types of mixtures for the SRK EOS are presented. The computations were performed using phase equilibria software (PE2000). 相似文献
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This paper presents a method for evaluating the often neglected component, the expected incompletion cost, of the operating cost of a paced line with stochastic task times. This incompletion cost is developed through a three stage process. First presented is a procedure for generating all possible combinations of incompleted tasks. Next is an evaluation of the probabilities and costs of their occurrence. Included are not only a mechanism for generating only those incompletion combinations with a significant probability of occurring, but also various techniques for reducing computer storage requirements and computation time. Finally, these make possible an evaluation of the operating cost of paced lines. 相似文献
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