Focal Spot, Summer/Fall 2006

https://digitalcommons.wustl.edu/focal_spot_archives/1103/thumbnail.jp

Focal Spot, Summer/Fall 2005

https://digitalcommons.wustl.edu/focal_spot_archives/1100/thumbnail.jp

ERTS-1 Virgin Islands experiment 589: Determine boundaries of ERTS and aircraft data within which useful water quality information can be obtained

The author has identified the following significant results. The boundaries of application of ERTS-1 and aircraft data are established for St. Thomas harbor within which useful water quality information can be obtained. In situ physical, chemical, and biological water quality and benthic data were collected. Moored current meters were employed. Optical measurements of solar irradiance, color test panel radiance and water absorption were taken. Procedures for correlating in situ optical, biological, and chemical data with underflight aircraft I2S data and ERTS-1 MSS scanner data are presented. Comparison of bulk and precision CCT computer printout data for this application is made, and a simple method for geometrically locating bulk data individual pixels based on land-water interface is described. ERTS spacecraft data and I2S aircraft imagery are correlated with optical in situ measurements of the harbor water, with the aircraft green photographic and ERTS-1 MSS-4 bands being the most useful. The biological pigments correlate inversely with the optical data for inshore areas and directly further seaward. Automated computer data processing facilitated analysis

Focal Spot, Summer/Fall 2005

https://digitalcommons.wustl.edu/focal_spot_archives/1100/thumbnail.jp

Focal Spot, Summer 2002

https://digitalcommons.wustl.edu/focal_spot_archives/1091/thumbnail.jp

Clinical Legal Education and the Public Interest in Intellectual Property Law

Clinical legal education provides a powerful methodology for students to learn about the relationships among intellectual property law theories, policies and practices; to encounter the experiences of persons who seek protection or who feel the legal regimes of intellectual property impinging on their ability to engage in educational, creative, innovative and culturally significant work; and to develop as lawyers. We describe in this article our motivations for forming an intellectual property law clinic at the American University Washington College of Law, the goals that we seek to achieve, and the tripartite pedagogical structure that we adopted - (1) a seminar built around a year-long simulation that addresses multiple lawyering skills and legal practice settings, (2) a wide variety of live-client student representations performed under close faculty supervision, and (3) weekly case rounds discussions focusing on public interest issues experienced directly by the students in their representations. We provide an example of a particular student representation that illustrates some of the benefits of our clinical model for teaching students about the public interest and intellectual property law doctrines within the framework of teaching about lawyering. We conclude with our reflections on student experiences and the ability of our clinical program to teach intellectual property law and lawyering in concrete factual and policy contexts, helping students better understand the interaction of theory, doctrine and practice in shaping the meaning and consequences of intellectual property regimes. Students came to understand law and lawyering and to see ways to shape their lives as lawyers, through analyzing and evaluating their responses to the interests of their clients, their actions in meeting the demands of a case, their understanding of the relationships among doctrinal areas, and the connection of their activities to the public interest

Capacity analysis of reservation-based random access for broadband wireless access networks

Abstract—In this paper we propose a novel model for the capacity analysis on the reservation-based random multiple access system, which can be applied to the medium access control protocol of the emerging WiMAX technology. In such a wireless broadband access system, in order to support QoS, the channel time is divided into consecutive frames, where each frame consists of some consequent mini-slots for the transmission of requests, used for the bandwidth reservation, and consequent slots for the actual data packet transmission. Three main outcomes are obtained: first, the upper and lower bounds of the capacity are derived for the considered system. Second, we found through the mathematical analysis that the transmission rate of reservationbased multiple access protocol is maximized, when the ratio between the number of mini-slots and that of the slots per frame is equal to the reciprocal of the random multiple access algorithm’s transmission rate. Third, in the case of WiMAX networks with a large number of subscribers, our analysis takes into account both the capacity and the mean packet delay criteria and suggests to keep such a ratio constant and independent of application-level data traffic arrival rate