Backward modelling and look-ahead fuzzy energy management controller for a parallel hybrid vehicle

This paper focuses on a parallel hybrid electric vehicle. It first develops a model for the vehicle using the backward-looking approach where the flow of energy starts from wheels and spreads towards engine and electric motor. Next, a fuzzy logic-based strategy is developed to control the operation of the vehicle. The objectives of the controller include managing the energy flow from engine and electric motor, controlling transmission ratio, adjusting speed, and sustaining battery's state of charge. The controller examines current vehicle speed, demand torque, slope difference, state of charge of battery, and engine and electric motor rotation speeds. Then, it determines the best values for continuous variable transmission ratio, speed, and torque. A slope window scheme is also developed to take into account the look-ahead slope information and determine the best vehicle speed for better fuel economy. The developed model and control strategy are simulated. The simulation results are presented and discussed. It is shown that the use of the proposed fuzzy controller reduces fuel consumption.

Should we teach an old game new tricks?

The Middle East Politics Simulation (MEPS) is a simulation of diplomacy and political tension in the Middle East. This online role-play exercise is aimed at providing students with an improved level of understanding of the political dimensions of the region. Having been run since 1993, the MEPS has not had any major updates to its platform in all those years. However, as such a mature online entity there is the question of whether the MEPS will continue to engage students as their expectations of what constitutes an online role-playing environment became steadily raised by their familiarity with more graphically immersive platforms. The reliance on social media tools for students and political figures to use as conduits for communication is also unrepresented in the MEPS and the subject of some student dissatisfaction in previous years. This research assesses student attitudes towards the MEPS with an eye to balancing the demands of technology, functionality, equity of experience, security and, most importantly, learning outcomes.

Captured by the game : might a focus on the ‘therapeutic relationship’ diminish the attention we give to the client’s intimate network?

A recent project sought to clarify how psychotherapists and mental health workers understand psychosocial health and pathology. In this enquiry, I paid particular attention to the client’s interpersonal networks: did the professionals actively consider, and if so to what extent, ‘intimate social and family relationships’ in constructing their understanding of the presenting problem and in the process they used for goal setting. Twenty-two semi-structured interviews were undertaken, eleven with psychotherapists and eleven with mental health workers. Across both groups, interviewees tended not to see their clients as embedded, relational entities, but primarily, often quite exclusively, as autonomous beings. Second, interviewees accorded a high value to the importance of ‘the therapeutic relationship’. Is it possible that the emphasis practitioners place on ‘the therapeutic relationship’ has the effect of marginalising the attention that is given to the client’s significant-other network

Design and analysis of a fuzzy controller for a servo system

This paper presents design and simulation investigation of a fuzzy controller and a conventional PID controller for a servo system. First, a servo system is considered and its stability is discussed. Then, a PID controller that is tuned by the Ziegler-Nichols method is formulated for controlling the servo system. To improve the servo system's dynamic response parameters, a fuzzy controller is then proposed for controlling the system. A performance comparison between the fuzzy and the PID controllers are carried out. The results are presented and discussed.

Researching kids and computer games : games, game play and literacy in the twenty first century

Videogames, and young people's engagement with them, are of growing interest to education. This paper reports on initial find ings from the study: Literacy in the Digital World of the Twenty First Century: Leaming from computer games, focussing on the opportunities offered by studying young people's immersion in game play for understanding more about contemporary forms of  engagement and textuality, new forms of literacy,community and identity multimodality, and the implications of such forms and changes for contemporary literacy and English education. Taking videogames as examples of global, ICT-based popular culture, where meaning is built from muhimodal elements, and where young players have to he actively teaming and involved in order to play, the project asks how English and literacy education might benefit from examining videogames, as rich exemplars of contemporary digital culture, and the ways in which young people make use of them, to improve the teaching of print and multi modal forms of literacy.

The end game in Afghanistan : Pakistan’s critical role

In the lead up to 2014, when the Coalition forces will be leaving Afghanistan, Pakistan will have a crucial role to play, not only in the negotiations but also in its relationship with the Afghan Taliban groups hiding in Pakistan. Indeed, there are historical, ethnic, operational and strategic reasons why Pakistan should have a seat at the negotiating table. Pakistan will want to make sure that its Taliban allies get a fair deal in the final outcome. While this may appear to be a good outcome for Islamabad in the medium term, it may not be good for Pakistan’s long-term stability.

Developing game sense through tactical learning

The article discusses how to form game sense approach via tactical learning. Students are provided with challenges in game sense approaches to solve structured games. Game sense approach to teaching can be used to foster behavioural, social, cognitive, and affective learning results.

Observer-based controller design of time-delay systems with an interval time-varying delay

This paper considers the problem of designing an observer-based output feedback controller to exponentially stabilize a class of linear systems with an interval time-varying delay in the state vector. The delay is assumed to vary within an interval with known lower and upper bounds. The time-varying delay is not required to be differentiable, nor should its lower bound be zero. By constructing a set of Lyapunov–Krasovskii functionals and utilizing the Newton–Leibniz formula, a delay-dependent stabilizability condition which is expressed in terms of Linear Matrix Inequalities (LMIs) is derived to ensure the closed-loop system is exponentially stable with a prescribed α-convergence rate. The design of an observerbased output feedback controller can be carried out in a systematic and computationally efficient manner via the use of an LMI-based algorithm. A numerical example is given to illustrate the design procedure.

The players’ perspective of Reach Out Central : a therapeutic interactive online game

Therapeutic online games are potentially a valuable way of improving the mental health of young people. The purpose of this paper is to discuss the qualitative component of a formal evaluation conducted on Reach Out Central (ROC), an online game for 16-25 year olds which aims to improve mental health. Participants completing a post-program survey from the evaluation (n=154) were required to respond to two open-ended questions; what they liked most, and least, about ROC. Responses indicate that online games can be a successful way of educating, as well as attracting and engaging, young people. Suggestions are made regarding issues future developers should take into consideration when developing programs of a similar nature.