知识产权保护与信息资源共享关系探讨及平衡机制构建   总被引：1，自引：0，他引：1  

陶慧卿  庄琦  潘卫 《大学图书情报学刊》2008,26(4):7-10

信息化的发展一方面为社会公众实现信息共享创造了条件,另一方面又引发了一系列社会问题,其中最突出的问题是知识产权保护和信息资源共享之间的关系处理问题。知识产权代表的是个人利益,信息资源共享是社会公共利益,在推进信息化过程中,信息拥有与使用中的矛盾冲突日益突出。文章在论证知识产权保护与信息资源共享合理性的基础上,进一步探讨了知识产权保护与信息资源共享之间的关系,提出相关平衡机制构建的建议。  相似文献   

基三分层互连网络中基于受限多播树的动态负载平衡     

刘滨  石峰  高玉金  计卫星  宋红 《东南大学学报》2008,24(1):33-37

为了解决基三分层互连网络(THIN)系统中的负载平衡问题,提出一种采用多播树技术提高节点间交换负载信息效率的动态负载平衡(DLB)算法--THINDLBA.设计了一套完整的DLB消息和各节点处的信息维护机制以辅助算法实现.重载节点的负载迁移请求消息沿着一棵以该节点为根的多播树传播,被该树覆盖的轻载节点均成为负载迁移的候选目标节点,可以沿着该树和重载节点交互负载信息,从而使重载节点能够在算法的一次执行中外迁最多的过载进程,尽快改善自身负载状态.算法设计中约束了多播树的构造过程,以避免因树间覆盖造成的消息误传或冗余.通过实验对比了4种DLB算法的性能,结果证明THINDLBA能更有效地缩减THIN系统处理计算密集型任务的时间.  相似文献   

Improving network service performance and reliability via links trunking technologies     

GUO Hui WANG Yun-peng WANG Zhi-guang ZHOU Jing-li 《浙江大学学报(A卷英文版)》2006,7(6):1001-1007

INTRODUCTION Because of the critical role that computing sys-tems and networks play in today’s business envi-ronment, it is not surprising that business success often goes to the company with the best information and the most efficient process for delivering that in-formation. As the principal tool for business col-laboration, corporate LANs are a vital resource in enabling today’s enterprises to adopt competitive strategies. The number of users wanting to share and access data across…  相似文献   

Motivation across domains: Do goals and attributions change with subject matter for Grades 4 and 5 students?     

Jane S. Vogler  Linda Bakken 《Learning Environments Research》2007,10(1):17-33

This study explored a theory for motivation which included aspects of both attribution theory and goal theory. Motivational variables included beliefs about intelligence (entity or incremental), goal orientation (mastery/learning, performance-approach, performance-avoidance) and avoidant behaviours. Grades 4 and 5 students from a large, metropolitan school district were surveyed regarding these motivational variables across the academic domains of reading and mathematics. The relationships among these motivational variables were explored, as well as differences across domains. A diverse sample allowed differences across ethnic groups and socioeconomic status to be studied. Results indicate that children could have a generalised notion of motivation that becomes differentiated when students are asked to reflect on these variables within specified domains. The existence of few differences across ethnic and socioeconomic groups suggest that instructional style could be a more powerful influence than either of these variables.  相似文献   

Moving beyond academic achievement goal measures: A study of social achievement goals   总被引：1，自引：0，他引：1  

S. Jeanne Horst  Sara J. Finney  Kenneth E. Barron 《Contemporary educational psychology》2007,32(4):667-698

The current research explored the theory of social goal orientation. More specifically, we conducted three studies utilizing six-independent university student samples to evaluate the construct validity of the Social Achievement Goal Orientation Scale (SAGOS; Ryan & Hopkins, 2003), a measure representing the construct of social goal orientation. The purpose of Study 1 was to: (1) compare the three-dimensional (mastery, performance-approach, and performance-avoidance) model of social goal orientation to three theoretically based competing models, (2) examine item functioning, and (3) assess generalizability of the factor structure. The fit of the proposed three-factor model was promising; however, areas of misfit and problematic items were identified. Stronger support for the three-factor structure of goal orientation was found using scores from an abbreviated 13-item SAGOS. In Study 2, item wording was altered slightly to evaluate a revised Social Achievement Goal Scale (SAGS), yet resulted in similar findings. Study 3 examined external validity evidence for the SAGS, garnering some support for the meaning of the scores. Although continued refinement of the SAGOS and SAGS is recommended, the findings help contribute to our general understanding and conceptualization of social goal theory and the role that social goals may play in academic contexts.  相似文献   

40t燃油铝混合炉门升降机构的改造     

崔文平  侯纯军 《焦作大学学报》2005,19(2):63-64

介绍了40t燃油铝混合炉炉门提升机构改造前存在的问题及改造过程。并对炉门提升机构液压控制原理、液压站布置、液压缸的改造方法进行了详细说明。  相似文献   

教育均衡发展:理论、指标及测算方法   总被引：56，自引：0，他引：56  

翟博 《教育研究》2006,(3)

教育均衡实质上是指在教育公平思想和教育平等原则的支配下,教育机构和受教育者在教育活动中有平等待遇的理想和确保其实际操作的教育政策和法律制度。教育均衡发展的本质是追求教育平等,实现教育公平。教育均衡发展从宏观层面分析是教育供给与需求的均衡,从中观层面分析是教育资源配置的均衡,从微观层面分析是学校教育过程包括内部课程教学资源配置的均衡、教育结果的均衡以及教育评价的均衡。教育均衡发展是一个历史范畴,按其实现程度可分为四个阶段。建立适应我国国情的基础教育特别是义务教育均衡发展指数,科学地选择基础教育均衡发展的要素,明确基础教育均衡发展的目标,具有重要的现实意义。数据分析表明,我国基础教育从整体上看正在趋向均衡。  相似文献   

Dynamic Distribution Model with Prime Granularity for Parallel Computing     

孙济洲张绍敏  李小图 《天津大学学报(英文版)》2005,11(5):343-347

Dynamic distribution model is one of the best schemes for parallel volume rendering. However, in homogeneous cluster system, since the granularity is traditionally identical, all processors communicate almost simultaneously and computation load may lose balance. Due to problems above, a dynamic distribution model with prime granularity for parallel computing is presented. Granularities of each processor are relatively prime, and related theories are introduced, A high parallel performance can be achieved by minimizing network competition and using a load balancing strategy that ensures all processors finish almost simultaneously, Based on Master-Slave-Gleaner （ MSG） scheme, the parallel Splatting Algorithm for volume rendering is used to test the model on IBM Cluster 1350 system. The experimental results show that the model can bring a considerable improvement in performance, including computation efficiency, total execution time, speed, and load balancing.  相似文献   

我国财政政策设计中的问题研究     

熊毅 《绥化学院学报》2006,26(6):1-3

本文研究了我国的财政政策设计中的一些问题。主要表现在:一,由于未将满足经济发展和经济稳定的政府支出分开,结果造成财政政策力度难以衡量;二,由于政策目标定为经济增长,结果造成政策未能有效的通过经济目标的实现,推动社会总目标的实现;三,由于政策目标设定不合理,结果造成政策效应持续性差,经济增长对政策产生强烈的依赖性。  相似文献   

对会计电算化发展的思考   总被引：2，自引：0，他引：2  

陈萍 《湖南广播电视大学学报》2004,(4):83-84

电子计算机在会计上的应用从根本上解脱财会人员的繁重手工劳动，腾出精力来从事财务管理工作。由于会计电算化工作目前在我国还处于生长发育期，因此在当前的会计电算化工作中产生了一些不可忽视的问题，也对会计电算化的发展提出了新的要求。本阐述了会计电算化的总目标和具体目标，分析了目前会计电算化中存在的若干问题，思考了发展会计电算化工作的对策。  相似文献