On the Conditions for the Characteristic Roots of a Matrix in a Sector

Davison and Ramesh expressed equivalently the condition for the characteristic roots of a real matrix to lie within a sector by the condition for a matrixof doubled order to be Hurwitzian (1). A further generalization of their result is given in this note.     

论城域光传输网络10G主干扩容组网

本文简要论述了城域网光传输网络10G主干扩容组网方案和扩容工程实施过程，提出了10G传输网络扩容组网的同步引入调整和通路组织方案。总结并探讨了城域网光传输网络主干扩容网络调整的一些方法和思路。     

Relations between the shape of a size-frequency distribution and the shape of a rank-frequency distribution

We study the dependence of the shape of the rank-frequency distribution g on the shape of the size-frequency distribution f and vice versa. We show mathematically that g is convexly decreasing if and only if f is monotonically decreasing and that g has an S-shape (i.e., g is first convexly decreasing and then concavely decreasing) if and only if f is first increasing and then decreasing.     

浅谈高职学生学习素质的培养

所谓学生学习素质,包括学习的主动性和学习能力两个方面,是学生获取知识、提高技能的内在动力表现,也是学生取得良好的学习效果的前提条件。而对于高职学校的学生来说,学习不仅仅是对理论知识的掌握和了解,更重要的是在掌握相对不完善的理论知识的基础上,更多地在实际动手能力上加强训练,形成比较强的实际操作能力和专业技能。     

Demystifying the Memories of a Fruitfly

Despite its tiny size, the fruitfly (Drosophila)brain is fairly intricate.Recently a group of neuroscientists from the CAS Institute of Biophysics (IBP) have managed to catch the first glimpse of the circuitry within a fruitfly neural system for visual pattern recognition. The paper entitled "Distinct memory traces for two visual features in the Drosophila brain" by the research group was reported in the February 2 issue of Nature.     

浅论虚拟化及其应用

在介绍虚拟化的概念和起源发展的基础上,阐述了虚拟化的主要应用方向,详细论述了各种虚拟化技术的概念、原理和方法,诸如服务器虚拟化、存储虚拟化和网络虚拟化。     

Applying the KnowCis methodology to a Greek municipality: a case study

The concept of the Knowledge City is a subfield of the Knowledge-Based Development which, during the last years, has attracted the interest of many researchers and practitioners. Various cities around the world have also undertaken considerable efforts and initiatives so as to be developed or to enhance their status as a Knowledge City. However, their approaches were rather ad-hoc and spontaneous and were not based on a pre-defined methodology. The research community has only recently begun to concentrate on the direction to substantiate the fundamental principles of Knowledge Cities and to define unified methodologies for their design, development and operation. Under this prism, the authors have recently proposed such a methodology, called KnowCis. The application of this methodology is currently in progress, on a Greek municipality. The municipality incorporates some special characteristics and features that render it a very advantageous case for this pilot application. This paper refers to the characteristics of the municipality and to the application of the KnowCis methodology, presents the progress of the effort and the preliminary results until now and provides useful insights on the forthcoming actions and plans of the city's administration. The outcomes, results and lessons-learnt of this pilot application will permit to fine-tune the KnowCis methodology.     

青藏高原民间舞蹈大众艺术体育初探——以锅庄舞为例

作为西部民族文化资源,藏族锅庄舞与现代社会大众多元化体育的对接、碰撞所产生的效果备受关注。通过对锅庄舞的种类及动作特点的分析,我们认为它属于民族传统体育范畴,从中发现无论是藏民还是汉民对于锅庄舞所具有一定艺术的审美情趣的价值是一致的。锅庄舞以多民族健身形式反映民众心理需求。