Le FORUM, Vol. 38 No. 1

https://digitalcommons.library.umaine.edu/francoamericain_forum/1040/thumbnail.jp

Le Forum, Vol. 42 No. 4

https://digitalcommons.library.umaine.edu/francoamericain_forum/1097/thumbnail.jp

A Survey of Air-to-Ground Propagation Channel Modeling for Unmanned Aerial Vehicles

In recent years, there has been a dramatic increase in the use of unmanned aerial vehicles (UAVs), particularly for small UAVs, due to their affordable prices, ease of availability, and ease of operability. Existing and future applications of UAVs include remote surveillance and monitoring, relief operations, package delivery, and communication backhaul infrastructure. Additionally, UAVs are envisioned as an important component of 5G wireless technology and beyond. The unique application scenarios for UAVs necessitate accurate air-to-ground (AG) propagation channel models for designing and evaluating UAV communication links for control/non-payload as well as payload data transmissions. These AG propagation models have not been investigated in detail when compared to terrestrial propagation models. In this paper, a comprehensive survey is provided on available AG channel measurement campaigns, large and small scale fading channel models, their limitations, and future research directions for UAV communication scenarios

Who Controls the Plate? Isolating the Pitcher/Batter Subgame

This paper combines an estimated expected run value equation with a probability model on the outcome of batted balls to isolate the game within a game. Using linear regression we were then able to determine the percentage of the outcome of an at bat that is controlled by a pitcher and the percentage that is controlled by the batter.

Computer Science Principles Curricula: On-the-Ground, Adoptable, Adaptable, Approaches to Teaching

Several recent sessions at CSTA and elsewhere have provided details about the development, piloting, and exam format of the NSF/College Board Computer Science Principles (CSP) project. Other presentations have highlighted individual projects and implementations of the CSP course. These courses differ in many respects – from choice of programming language, to the degree of emphasis on the Internet, and more. As schools move to adopt the CSP framework, develop courses, and deliver them, teachers and administrators look to national models for curricula that can be adopted and adapted to suit local needs. In this session, we highlight six NSF- and private/non-profit-funded projects that have developed, piloted, and made available CSP curricula. The single session, active format facilitates direct comparisons of the approaches