ADSL的原理及应用

阐述了ASDL的工作的原理。并从单机用户接入和局域网用户共享接入的方案与实现 ,介绍了它们的具体要求和操作过程。     

网络信息资源的组织与开发

对网络信息资源的组织和开发进行研究,有助于人们迅速准确地获取网上有用信息,推动社会信息化与信息社会化的双向发展。本文对网络信息资源的特点、获取障碍进行了分析,探讨了网络信息资源的六种组织形式、四种组织方式及利用人工智能解决网络信息资源的描述与组织未来发展趋势,介绍了提供分类链接熏建立导航库、制作主页、提供数据库查询、建立网络资源数据库、搜索网上电子报刊补充馆藏等开发方法。     

网络时代期刊的品牌打造

网络时代,期刊业竞争日趋激烈,打造优质期刊品牌成为期刊生存、发展和胜出的关键。办刊人应改变过去期刊一元主体模式,建立多元主体模式,通过编者、作者、读者各主体间的交流、碰撞、互动,产生思想火花,产生合力。同时,还要打通并利用各种有效途径,开拓创新,前瞻运作,不断提升期刊的内涵和品位,优化期刊的整体质量,塑造出优质期刊品牌,以确立期刊在业界的地位,在竞争中发展壮大。     

网络信息产业融合机理与发展策略研究

随着网络信息技术的日益发展,信息技术产业的融合之势愈加明显,各种新兴网络应用服务层出不穷。信息产业融合型的增长模式正在快速改变着社会经济的运行方式。产业融合正在加速产业结构的变动调整,也在推动产业转型升级。产业间的融合渗透促进了新兴业务的活跃爆发,为产业发展带来了一股全新的力量。应当以此为契机,培育新一代产业增长极。首先需要认清产业发展规律,科学地指导产业发展;其次有必要打破体制壁垒,创造良好的政策支持环境;再者,营造开放的发展环境,鼓励企业创新,从而以产业融合有力地推动网络信息产业发展。     

The differential contributions of teen drinking homophily to new and existing friendships: An empirical assessment of assortative and proximity selection mechanisms

Alcohol use is pervasive in adolescence. Though most research is concerned with how friends influence drinking, alcohol is also important for connecting teens to one another. Prior studies have not distinguished between new friendship creation, and existing friendship durability, however. We argue that accounting for distinctions in creation–durability processes is critical for understanding the selection mechanisms drawing drinkers into homophilous friendships, and the social integration that results. In order to address these issues, we applied stochastic actor based models of network dynamics to National Longitudinal Study of Adolescent Health data. Adolescents only modestly prefer new friendships with others who drinker similarly, but greatly prefer friends who indirectly connect them to homophilous drinkers. These indirect homophilous drinker relationships are shorter lived, however, and suggest that drinking is a social focus that connects adolescents via proximity, rather than assortativity. These findings suggest that drinking leads to more situational and superficial social integration.     

青少年网络游戏成瘾问题剖析与对策

随着互联网的普及,网络游戏已经成为青少年的主要娱乐方式之一,网络游戏成瘾的青少年更是呈逐年上涨的趋势,给青少年的成长带来了巨大的影响。文章剖析了青少年网络游戏成瘾的原因,提出了解决青少年网络游戏成瘾问题的对策。     

从传播学角度看草原文学的发展与传播——以当代草原歌曲的网络传播为例

草原歌曲作为草原游牧生活与生产方式的反映,是游牧文化的产物,近年来因其特有的宁静、辽远之美为众多音乐爱好者所关注,本文将草原歌曲放入草原文学这个大范畴中,分四个时期简要梳理了建国以来草原歌曲的发展脉络,以及不同时期的草原歌曲所体现出的时代内涵;在网络媒介发达的现代生活中,网络已成为草原歌曲传播的重要途径,本文的另一部分内容即是对当代草原歌曲在网络上的传播方式及传播效果的分析;在此基础上为草原歌曲的进一步发展与传播提供了一些建设性的意见。     

选择千兆位以太网还是ATM

作为一种新技术 ,千兆位以太网技术在具有强大生命力的同时 ,也有着其不成熟的一面 ,在今后的高速联网技术市场上它与ATM(AsynchronusTransferMode)哪种技术将独执牛耳 ,目前还很难断言 本文从几个方面来比较一下千兆位以太网技术和ATM技术的各自特点     

系统症结辨识的模糊分析与应用

本文基于模糊因果网络分析,提出了系统症结辨识的一种新思路,实例研究了吉林省轻工业发展现状的主要症结所在．     

Adaptive sampling without replacement of clusters

In a common form of adaptive cluster sampling, an initial sample of units is selected by random sampling without replacement and, whenever the observed value of the unit is sufficiently high, its neighboring units are added to the sample, with the process of adding neighbors repeated if any of the added units are also high valued. In this way, an initial selection of a high-valued unit results in the addition of the entire network of surrounding high-valued units and some low-valued “edge” units where sampling stops. Repeat selections can occur when more than one initially selected unit is in the same network or when an edge unit is shared by more than one added network. Adaptive sampling without replacement of networks avoids some of this repeat selection by sequentially selecting initial sample units only from the part of the population not already in any selected network. The design proposed in this paper carries this step further by selecting initial units only from the population, exclusive of any previously selected networks or edge units.