面向虚拟供应链的项目范围管理

通过分析虚拟供应链项目的特点,首先建立了面向虚拟供应链的项目范围管理流程,接着分析了面向虚拟供应链的项目产品范围管理和任务范围管理中存在的问题以及它们之间的联系.最后讨论了引起面向虚拟供应链的项目范围发生变更的原因,并针对每个原因提出了相应的解决方法.     

Aims and Scope

<正>Wuhan University Journal of Natural Sciences aims to promote rapid communication and exchange between the world and Wuhan University,as well as other Chinese universities and academic institutions.It mainly reflects the latest advances being made in many disciplines of scientific research in Chinese universities and academic institutions.The journal also publishes papers presented at conferences in China and abroad.The multi-disciplinary nature of Wuhan University Journal of Natural     

Aims and Scope

Wuhan University Journal of Natural Sciences aims to promote rapid communication and exchange be-     

The Scope of Design Studying

This article trys to discuss the scope of design studying in two f ields.Firstly, design has three meanings: wide design, art design and industrial design.Second ly, design studying has five contents: cultural, philosophical, methodological, produced an d marketable trends.     

试论留置权的适用范围

在我国民法上，留置权是担保物权之一种，本文通过考察国外及台湾地区民事立法有关留置权适用范围的相关规定，指出我国现行民法中留置权的适用范围过于狭窄。并通过对留置权几种情形的具体分析，提出我国物权立法中留置权适用范围的个人建议。     

矩阵特征值问题的背景及一些新应用

本文讨论了矩阵特征值问题在代数、几何、分析、概率、天文、物理、化学、经济等广泛的领域内的产生及应用背景,并总结了作者在图论、管理科学、社会科学等领域提出的新应用。     

熵变概念的拓展

在Prigogine熵变公式和Shannon信息熵公式的基础上,提出了人体熵变的概念.指出人头脑中信息或知识的更替应成为人体熵变的一部分.给出了广义熵变公式,并讨论了其意义.     

小型低强度X射线成象仪

采用新型Ｘ射线象增强器，研制开发成功一种小型低强度Ｘ射线成象仪．它具有分辨率好（≥５ｌＰ／ｍｍ）、工艺简单、成品率高（８０％）、便于携带（整机重４ｋｇ）、可在明室实时观察透视象等特点．本文中论述该仪器的工作原理、结构、性能和在医学领域的可能应用．     

Aims and Scope of the Journal

<正>The journal of Progress in Natural Science:Materials International sponsored and organized by both Chinese Materials Research Society(C-MRS)and International Union of Materials Research Societies(IUMRS)started to publish its fi rst issue in November,2010.The Progress in Natural Science:Materials International provides scientists and engineers throughout the world with a central     

Aims and Scope of the Journal

<正>The journal of Progress in Natural Science:Materials International sponsored and organized by both Chinese Materials Research Society(C-MRS)and International Union of Materials Research Societies(IUMRS)started to publish its first issue in November,2010.The Progress in Natural Science:Materials International provides scientists and engineers throughout the world with a central vehicle for the exchange and dissemination of basic theoretical studies and applied research of advanced materials.The emphasis