Hybrid ants-like search algorithms for P2P media streaming distribution in ad hoc networks     

ZUO Dong-hong DU Xu YANG Zong-kai 《浙江大学学报(A卷英文版)》2007,8(8):1191-1198

Media streaming delivery in wireless ad hoc networks is challenging due to the stringent resource restrictions,po-tential high loss rate and the decentralized architecture. To support long and high-quality streams,one viable approach is that a media stream is partitioned into segments,and then the segments are replicated in a network and served in a peer-to-peer(P2P) fashion. However,the searching strategy for segments is one key problem with the approach. This paper proposes a hybrid ants-like search algorithm(HASA) for P2P media streaming distribution in ad hoc networks. It takes the advantages of random walks and ants-like algorithms for searching in unstructured P2P networks,such as low transmitting latency,less jitter times,and low unnecessary traffic. We quantify the performance of our scheme in terms of response time,jitter times,and network messages for media streaming distribution. Simulation results showed that it can effectively improve the search efficiency for P2P media streaming distribution in ad hoc networks.  相似文献   

高校思想政治理论课实践教学新模式   总被引：2，自引：0，他引：2  

杜惠平  魏钢  曾维伦  代金平 《中国德育》2007,2(3):48-50,80

加强实践教学环节，使大学生深入实际、深入社会生活，既是加强和改进高校思想政治理论课的重要方面，也是当前深化思想政治理论课教育教学改革的一个难点。依照现代教育教学规律，充分发挥教师的主导作用和学生的主体作用，构建以课程专题调研为主线，以引导式、参与式和研究式教学为特点，以学生团队学习为主要组织形式，以过程教育为重心的思想政治理论课实践教学模式，具有重要的实践价值。  相似文献   

Editorial     

Chris Curran 《European Journal of Education》2001,36(2):109-112

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关于建立中介性质就业指导机构的思考   总被引：2，自引：0，他引：2  

都丽萍 《教育与职业》2006,(27):31-33

高校的就业指导作为高校教育教学工作的一个重要组成部分，已经成为保障毕业生顺利就业的有效手段。随着大学生就业的市场化，就业指导的专业化、个性化需求将变得越来越迫切，建立中介性质的就业指导机构能够形成政府、学校、用人单位、劳动力市场之间的良性互动，以满足多方面的需求。  相似文献   

论儿童文学作者的修养     

杜春海 《四川职业技术学院学报》2005,15(1):33-34,38

儿童文学对其创作者有着与成人文学作者明显不同的要求，它需要具有爱心、尊重少年儿童的心理年龄特征与个性发展的品质及培养创新能力与审美能力的意识。  相似文献   

用Mathematica计算机代数系统求解数理方程   总被引：1，自引：0，他引：1  

杜建明 《淮南师范学院学报》2002,4(2):19-21

用Mathematica4.0系统软件精确求解了具有定解条件的一维波动方程和一维热传导方程。  相似文献   

Critical pedagogy,ecoliteracy & planetary crisis: the ecopedagogy movement     

Chris Francis 《Environmental Education Research》2011,17(5):705-708

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Chinese children with ASD in Hong Kong (SAR): development of inclusive practice     

Brenda Peters  Chris Forlin 《Journal of Research in Special Educational Needs》2011,11(2):87-98

The advancement of inclusive educational provision in the Asia‐Pacific region has been guided by international research. As one example, Hong Kong has developed a unique and cultural response to inclusive practice within the region. This paper reviews Hong Kong's development of inclusive education practice for children with autism spectrum disorder (ASD). It provides an account of how services in education have developed for Chinese children with ASD, from diagnosis to school placement, and how the students are supported. A number of challenges for the region are discussed including those related to pedagogy, mentoring, placement, support and the need for culturally appropriate professional learning.  相似文献   

Complexity and organizational reality: uncertainty and the need to rethink management after the collapse of investment capitalism     

Chris Rodgers 《Action Learning: Research and Practice》2011,8(1):84-86

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Teaching effectiveness: Comparisons between traditional and nontraditional college students     

John W. Keller Ph.D.  Nina Mattie  Stephen J. Vodanovich  Chris Piotrowski 《Innovative Higher Education》1991,15(2):177-184

This article compares traditional college students' perceptions of effective teaching behaviors with nontraditional students' perceptions. A 15-item questionnaire was completed by undergraduates at a small Southeastern university. Nontraditional students viewed personality and interaction behaviors as more indicative of effective teaching, whereas traditional students focused on behaviors that potentially would enhance grades. The implications of the findings are discussed in light of techniques and approaches that facilitate the needs of both types of students.His major areas of interest include testing and counseling. Nina Mattie, M.A. is a recent graduate of the University of West Florida in the area of school psychology. Stephen J. Vodanovich, Ph.D. is an assistant professor in the psychology department at the University of West Florida. His major areas of interest are social psychology and industrial/organizational psychology. Chris Piotrowski, M.A. is a consultant in forensic psychology. His major areas of interest are personality assessment and online database searching.  相似文献