千禧年初复合图书馆的服务及发展策略

在迎接新千禧的前后数年之间,大多数图书馆必须同时承担数位(即数字)图书馆和传统图书馆的社会功能与角色;图书馆员也必须同时熟悉传统典藏与数位典藏,并要提供具有传统服务与数位服务两种性质的服务。     

一类非线性系统稳定性的一个判据

利用向量形式的Bellman不等式获得一类非线性系统＝A（t，x）x零解稳定性的一个判据。     

一批西汉珍贵文物回归

2006年初，美籍华人范世兴、邓芳夫妇在互联网上看到有几家美国古董店出售中国汉代文物，出于对中华民族传统文化的珍爱，他们及时与汉阳陵考古陈列馆取得联系。初步确认了文物的真伪与时代后，范世兴、邓芳夫妇立即对即将出售的31件典型文物进行订购，同时主动联络旅居国外的爱国侨胞黄翔华、刘苹、邓清、李涛、陈勇、蔡明奇、王雷、黄岚、     

21世纪初图书馆的十大变换化管理

分析数字革命对图书馆管理的影响，指出图书馆已由自动化管理的时代迈向变换化管理的时代，并提出图书馆的十大项变换化管理范畴，作为图书馆管理2．0概念的起点。     

Democratic environments offered to children at school,in the family,and in society: the case of Turkey

This research aims to investigate democratic environments offered to children in Turkey at school, in the home, and in society. A mixed method is a general type of research where qualitative and quantitative methods are used together. The researcher first collects quantitative and then the qualitative data. The study group in the research consisted of children in Kirsehir, a small city near the capital Ankara, in central Turkey. Democratic Environments scale and interview forms were used in the research. To analyze the obtained data, arithmetic averages, standard deviations, and percentages were calculated and multivariate analyses of variance conducted. The data obtained during interviews were analyzed through content analysis. Results show that even though Turkey accepts the Convention on the Rights of the Child, some problems remain associated with the democratic environment offered to children at school, at home, and in society.     

精彩——来自预料以外

浙教版九年级数学《1.3反比例函数的应用》,教学内容主要为两道例题,其中例2教学中由于图形特征不够明显,而使学生产生＂异议＂,笔者遵循学生的异议,通过师生探究,成功解决＂争端＂,并得到快速辨别一次函数、反比例函数的数字模型。     

非用户模型-信息系统功能方法论

设计符合非用户行为的系统功能,可以增加系统使用率。系统地介绍非用户行为的相关研究,区分非用户的类型,提出非用户行为理论,探讨以临境分析、人物角色和生活实验室来探索非用户行为的方法,可作为改进和提升数字图书馆服务系统的设计工具。     

Greville定理的推广

本文将计算加列矩阵的Moorc—Penrose广义逆的Greville定理推广到同时加若干个列的矩阵,最后给出一个数值计算的例子.     

Motion and orientation of cylindrical and cubic particles in pipe flow with high concentration and high particle to pipe size ratio

Lattice Boltzmann method was used to numerically investigate the motion and orientation distribution of cylindrical and cubic particles in pipe flow with high concentration and high particle to pipe size ratio. The transient impulse model of 3D collisions between particles and between particle and wall is proposed. The numerical results are qualitatively in agreement with and quantitatively comparable to the experiment data. The results show that the increases of both the cylindrical particle to pipe size ratio and the particle aspect ratio decrease the rotation about all axes. All rotations of cubic particles decrease with increasing the particle concentration. The cubic particles, rotating more drastically in the flow with large Reynolds number, rotate faster than the cylindrical particles with the same size. The cylindrical particles align with the flow direction more obviously with decreasing Reynolds numbers. However, the orientations of cubic particles are spread all over the range with no significant difference in magnitude, and the Reynolds numbers have no obvious effect on the orientations of cubic particles.