用BitTorrent技术构造高校图书馆热点数字资源的思考

本文从BitTorrent技术的原理和特点出发，通过对BitTorrent技术在高校图书馆中应用的可行性分析，提出了用BitTorrent技术构造高校图书馆热点数字资源的方法步骤，为数字图书馆建设提供了一种新的思路。     

我国城市轨道交通BT融资模式研究

BT模式（Bul]d～TranSfer）是一种进行基础性设施项目建设的的新型融资模式,发起人一般为政府部门,所利用资金为非财政资金。该模式对于盈利能力较低的城市轨道交通项目有着较好的融资效果,它将在我国未来的城市轨道交通项目中有着广泛的应用前景。本文从分析目前常见BT模式的运作形式入手,对比了各运作方式的特点及适用范围．提出总承包型的BT模式是有较强生命力的运作模式。本文还针对城市轨道交通系统的BT模式的必要性及保障措施做了相关研究。     

我国营改增的利弊及优化对策分析

2011年11月16日发布《营业税改征增值税试点方案》标志着我国增值税"扩围"改革的启动。我国推行营改增虽然具有优化产业结构、扩大需求、促进就业等优点,但是会产生地方政府财政收入减少、部分行业税负加重、税收征管难度加大等弊端。国内研究成果及国外经验表明,不断健全增值税制度、简化税种、降低税率、逐步扩围、加强监管、注重营改增配套政策实施等是我国优化营改增的有效对策。     

全球首宗BT侵权案引发的思考

根据发生在香港的全球首宗BT侵权案的基本案情,笔者针对该案分析香港和中国大陆之间的法律差异,主要从侵权行为、损害程度和是否以营利为目的三部分进行对比分析,尝试用经济学中的“均衡原理”分析中国是否应建立相关P2P法律。具体而言,即依据均衡原理中的三个子原理即利益均衡、权利均衡和权能均衡,并选择香港和美国有关的P2P的法律制度作为比较对象,分析针对中国大陆的国情应当如何建立中国大陆的P2P有关著作权保护制度。     

校园网资源共享应用技术的分析研究

校园网的资源共享应用技术是网上极为关注的热点。通过对传统的Ftp、http下载和最新概念P2P的B T下载的工作原理、关键技术和主要特点进行深入分析比较,结合现行校园网管理实际,提出了一种校园网资源共享的BT服务站设计架构和实现方法,较好地解决校园网用户下载和网络管理之间的矛盾和困扰,是网管中心一种切实可行的办法。     

BOT/BT模式污水/回水处理定价及调价模型运筹研究

目前国内污水处理项目价格调整方法没有充分起到对水资源供需关系的调控作用。文章结合项目处理关系的动力费、当地在岗职工收入等因素,设计出污水、回水成本调价公式,构建城市供水、污水处理、管网配套、回水回用费用间合理的比价关系,对水资源供需关系进行科学调控,形成有效的环保价格激励机制。     

An empirical study of formal procedure specification

Programming a computer is a problem-solving activity which can be categorized as formal procedure specification.It is a useful vehicle for the study of this aspect of problem-solving because the procedures can be automatically tested for correctness.The reported study focuses on the incidence and severity of errors committed during program development by novice programmers.The observations are summarized in tabular form, to permit insights into the sorts of errors virtually untrained students make when specifying procedures, and the problems they have eliminating them.     

Irrelevant information: Some effects on children's problem-solving

Children of 3, 5, 7, 9, and 11 years of age were given simple, social-matching problems. Two conditions were employed: each involved verbal presentation but in one (Condition V) no concrete representation was involved while in the other (Condition M) models were also used. Within each condition, information was provided which was (a) sufficient, (b) superfluous, (c) irrelevant or which displayed a combination of these characteristics. For all age groups, the problems containing only irrelevant information were the most difficult, although Condition M enhanced the performance of younger children while depressing that of 7- and 9-year-olds. The results were interpreted as supporting the view that a major source of difficulty for the child may lie in selecting the appropriate referent. Some inferences are drawn regarding the abilities of children to cope with ambiguity.     

Toda链的新解

The bilinear Baecklund transformation (BT) provides a means of finding multisoliton solutions of some non-linear evolution equations, where Hirota‘s technique is used. In this paper, the bilinear BT for Toda lattice was modified and then some novel solutions of the Toda lattice was constructed through the modified BT.     

从改造后的B(ā)cklund变换出发找MKdV方程的新解

A modified version of the bilinear Backlund transformation for the MKdV equation was given, with which some new solutions of the MKdV equation are obtained. The approach used here is general and can be applied to other soliton equations.