On exact D-optimal designs with 2 two-level factors and n autocorrelated observations

In this paper we consider the exact D-optimal designs for estimation of the unknown parameters in the two factors, each at only two-level, main effects model with autocorrelated errors. The vector of the n random errors in the observed responses is assumed to follow a first-order autoregressive model (AR(1)). The exact D-optimal designs seek the optimal combinations of the design levels as well as the optimal run orders, so that the determinant of the information matrix of BLUEs for the unknown parameters is maximized. Bora-Senta and Moyssiadis (1999) gave some conjectures about the exact D-optimal designs based on their experience of several exhaustive searches. In this paper their conjectures are partially proved to be true.Received: January 2003 / Accepted: October 2003Partially supported by the National Science Council of Taiwan, R.O.C. under grant NSC 91-2115-M-008-013.Supported in part by the National Science Council of Taiwan, R.O.C. under grant NSC 89-2118-M-110-003.     

CMM模型和我国软件业生产过程标准化

CMM模型是国际上最流行的一种软件生产过程标准。本文比较了国内外软件业生产过程标准化的现状,分析了阻碍我国软件业开展CMM评估的原因,并在此基础上,提出在我国推行CMM标准亟待解决的几个主要问题。     

企业会计政策选择对会计信息质量的影响

会计政策选择有其客观必然性,会计信息的不同使用者对会计政策的选择有不同的要求.本文拟从不同的会计信息使用者对会计政策选择施加的影响入手,从会计政策选择角度谈谈如何提高会计信息质量.     

建立以财务管理目标为起点的财务管理理论结构

自MM理论提出到法玛、米勒《财务管理》的出版，公司财务理论得到了长足的发展，其间取得了资本结构理论、投资组合理论、资本资产定价模型、有效市场理论和期权定价理论等重要研究成果。但是，这些理论多偏重于资本市场条件下公司理财的某一方面，缺乏对公司财务理论的系统性和整体性的认识。近几年，国内外学者对财务理论结构问题进行了一些有益的探索，但目前尚未形成一致的看法和结论。本文将在对现有研究成果回顾与评述的基础上，对建立“以财务管理目标为起点的财务理论结构”问题予以探讨。     

用科学发展观推进国有企业的深化改革

必须用科学发展观指导国有企业的深化改革，否则难以实现国企改革的目标。当前深化国企改革的要点有三：一是国有企业改制和产权转让的规范化问题；二是改革的配套协调问题：三是政府转型问题。     

关系营销与可持续发展

可持续发展是21世纪经济发展的主题,这一概念在20世纪80年代初由美国学提出,80年代后期逐渐形成系统观念,为包括发达国家和发展中国家在内的国际社会所接受和认同.其思想的核心是：当今的经济增长不能破坏后人生存与发展的环境,一个国家（或一个地区、一群人）的发展不能以损害其他国家（或其他地区、其他人）的利益为代价. 　　……     

广西旅游企业市场营销存在的问题与对策

改革开放以后,我国经济得到了较快发展,人民的生活水平不断提高,旅游活动已经逐渐成为我国人民休闲、度假的良好方式,因此,广西的旅游事业得以蓬勃发展,而旅游市场营销是发展旅游事业的重要问题。文章在研究、分析广西旅游市场营销现状和存在的问题基础上,提出解决问题的对策,探究了旅游市场营销的合理发展趋势。     

Integrating design metrics within the early supplier selection process

It has been found from the contemporary research in the fields of supply chain management and concurrent engineering that significant benefits can be achieved if suppliers are involved in product development. However, recent investigations in manufacturing industries have revealed that early supplier involvement in the design process is not widely practiced. One issue is the lack of an appropriate customer–supplier interface to assess the suitability of suppliers with reference to design criteria. This paper proposes a mechanism for evaluating supplier involvement during product development. The assessment tool includes four types of distinctive indices to measure supplier involvement in the design process, namely: Satisfaction Index, Flexibility Index, Risk Index, and Confidence Index. These indices measure the extent to which both the customer requirements and the supplier capabilities match or mismatch and therefore reflect the potential or risk of signing a project contract. The proposed methodology is discussed within a multinational telecommunications company and preliminary analysis indicates that the approach provides an effective mechanism for selecting suppliers involved in the product development process.     

具有自动撮合与视频通信的高校就业网站设计

文章针对传统就业网站功能单一、服务起点低、没有充分发挥网络交互通信作用的弊端,提出了一个具有撮合算法和视频通信功能的新型招应聘网络平台的设计,文章介绍了系统的结构、基于模糊向量的撮合算法以及基于对等通信模型的视频功能实现,对同类研究和设计有一定参考作用。     

论"物料代用"

本文主要对组织生产经营过程中的物料分类、物料代用原则、物料代用和禁止代用情况、代用方式、代用程序及流程以及代用效果评价和信息反馈等进行了探讨，以适应信息化物料管理系统的需要，确保物料使用的经济性、易得性及产品质量的满足。