The adoption and usage of smartphone media technologies as a source of news by Egyptian university students

Copyright © 2019, IGI Global. This study examines the adoption and use of smartphones as a source of news by Egyptian university students. The study was applied on a random sample of 400 university students, whom already have smartphones. This study was guided by the uses and gratification theory to explore the use of smartphones among university students as a news resource. The study used quantitative research methodology in the form of a survey. Information was collected using a self-administrated questionnaire between March 2018 and April 2018. Findings showed that although Egypt is not one of the oil-rich countries, most of the university students are heavy smartphone users and the vast majority (87.5%) of them are accessing news via their smartphones. More importantly, the findings revealed that university students mainly used smartphones to get general information (47.5%), Egypt’s news (37.5%), entertainment (29.25%) and follow world’s news (27.75%). Finally, findings showed that (70%) of students use their smartphones to follow current affairs, while 67.5% said that smartphones helpe them to communicate with their friends

Dynamic modeling of wheeled planetary rovers: A model based on the Pseudo-coordinates approach

The paper deals with the dynamic modeling of wheeled planetary rovers operating on rough terrain. The dedicated model here presented, although kept as simple as possible, includes the effect of nonlinearities and models the suspensions in a realistic, albeit simplified, way. It can be interfaced with a model of the control system so that different control strategies can be studied in detail and, in case of teleoperated rovers, it can be used as a simulator for training the operators. Different implementations, with different degrees of complexity, are presented and compared with each other so that the user can simulate the dynamics of the rover making a tradeoff between simulation accuracy and computer time. The model allows to study the effects of the terrain characteristics, of the ground irregularities and the operating speed on the behavior of the rover. Some examples dealing with rovers with different configurations conclude the paper