Self-* properties through gossiping

As computer systems have become more complex, numerous competing approaches have been proposed for these systems to self-configure, self-manage, self-repair, etc. such that human intervention in their operation can be minimized. In ubiquitous systems, this has always been a central issue as well. In this paper, we overview techniques to implement self-* properties in large-scale, decentralized networks through bio-inspired techniques in general, and gossip-based algorithms in particular. We believe that gossip-based algorithms could be an important inspiration for solving problems in ubiquitous computing as well. As an example, we outline a novel approach to arrange large numbers of mobile agents (e.g. vehicles, rescue teams carrying mobile devices) into different formations in a totally decentralized manner. The approach is inspired by the biological mechanism of cell sorting via differential adhesion, as well as by our earlier work in self-organizing peer-to-peer overlay networks.     

Teaching in Real-time Wireless Classrooms*

This paper describes the educational opportunities and challenges of teaching in a real-time wireless classroom (WC) environment. The WC environment allows instructors to replace the conventional blackboard and chalk classroom with a collaborative, networked, portable classroom environment. WCs provide a wide variety of new instructional possibilities, including collaborative presentations and whiteboard interaction, live audio and video, animated examples, independent and instructor-directed web surfing, and other powerful multimedia methods. However, making effective use of these real-time interactive capabilities is not straightforward, and there are many challenges involved with teaching in such an environment. This paper describes our practical experiences teaching with WCs the past year. We discuss the costs and effort needed to prepare course materials for a WC and report on recent experiments that integrate the WC environment with a distance learning effort.     

Teaching Scientific Computing Through Projects*

Traditional numerical methods courses face several difficulties. There is a performance problem for students who need to combine different skills. Students spend so much time mastering the details that they often miss the point as to why there is a need for scientific computing. Using projects drawn from practical situations, and a good high‐level package such as MATLAB**, can overcome much of this. The difficulty associated with learning scientific programming is greatly alleviated. This in turn frees time for studying more advanced methods. The need to combine ideas from different areas makes this an ideal candidate for both team‐teaching and student teamwork on the projects. In this paper, we discuss the use of this approach in a variety of scientific computing courses at different levels .     

Teaching Why Accuracy and Clarity are Ethics Issues

The teaching of ethics in engineering is a topic of much concern in engineering education. The purpose of this paper is to present an innovation in teaching ethics combined with accuracy of computation and clarity of documentation in a design setting.     

知识产权许可的反垄断分析

知识产权许可是实施知识产权的最主要方式，有助于权利人实现效益最大化，但它也具有潜在的垄断性，可能阻碍知识创新和危害竞争。文章在阐明知识产权许可与反垄断关系基础上，对若干具体知识产权许可行为进行反垄断法律分析，认为对知识产权许可进行反垄断法律规制时，需要考虑各方面因素的影响，并权衡其对创新的激励效果和对竞争的限制影响。     

“管理学”中的案例教学法探讨

文章论述了“管理学”课程教学采用案例教学法的必要性，分析了案例教学法在管理学教学中具体应用的几个环节和应用效果，提出了在管理学教学中应用案例教学法应注意的几个问题。     

Case Studies in Optimization: Catenary Problem

This is the second paper in a series presenting case studies in modern large-scale constrained optimization 9 In this paper, we consider the shape of a hanging chain, which, in equilibrium, minimizes the potential energy of the chain. In addition to the tutorial aspects of this paper, we also emphasize the importance of certain modeling issues such as convex vs. nonconvex formulations of given problem. We will present several models of the problem and demonstrate differences in the number of iterations and solution time.     

Enhancing Civil Engineering Education Through Case Studies

The civil engineering profession is characterized by multifaceted, interdisciplinary problems requiring teams comprised of diverse members including technical specialists, designers, and constructors. Unique attributes including location, regulatory agencies, and owner preferences require architecture-engineering-construction (AEC) teams to cooperate throughout the design-build process to ensure that all specifications are satisfied. In contrast, civil engineering education is characterized by disciplinary boundaries which minimize opportunities for civil engineering students to interact with students from architecture or other related disciplines. This paper introduces one approach, currently being implemented at the Georgia Institute of Technology, to reduce these boundaries through the introduction of an interdisciplinary course focusing on the development of civil engineering case studies. Additionally, the paper presents an effort to introduce precollege students to the civil engineering profession through the use of the developed case studies.     

实施卫生与植物卫生措施研究述评

食品安全管理、消费者的质量和安全需求,以及保护与发展农产品贸易等多种诉求共同推动了卫生与植物卫生(SPS)措施在确定农产品市场准入方面地位的提升。本文重点围绕SPS措施实施所产生的影响及其程度测算方法、发展中国家应对等问题,对现有研究进行综述,并提出未来研究的方向。     

Teaching with ALN Technology: Benefits and Costs*

The implementation of Asynchronous Learning Network (ALN) technology in a large on‐campus course over several years is reviewed, and recent data concerning both educational and cost effectiveness are presented. Even with higher course standards for success, student performance on examinations has improved, a larger fraction of students achieve the goals of the class, and the proportion of students who excel has increased. Female students benefit even more than their male counterparts. The level of communication and interaction among students has also increased dramatically, with mostly positive (but some negative) effects. Data concerning cost effectiveness indicate that the technology can reduce costs, but perhaps more importantly, it can increase the quality of education without increasing costs.     

企业成长期的品牌形象设计个案研究

通过对成长期的企业形象VI个案设计,探讨本土企业面对激烈的全球化竞争, 必须找到最佳的导入时机,整合优势资源,创立自主形象品牌和中国的CI文化典范探讨能及的可能性.     

Articulate Virtual Labs in Thermodynamics Education: A Multiple Case Study*

This paper describes the use of CyclePad—an articulate virtual laboratory for creating and analyzing thermodynamics cycles—at three different types of educational institutions: a research university, an engineering technology program in a large state university, and a military academy. Case studies of each site were created based on classroom observations, student surveys, and interviews with faculty. In comparing these three institutions, we found that the context of the school and the ways in which professors chose to implement CyclePad led to different student experiences. Depending on the types of problems that students worked on, they found the software more or less helpful in increasing their understanding of thermodynamics. Students in the class that had the most constraints on its curriculum, where little change was possible, were less able to take full advantage of the software's capabilities.