http://hdl.handle.net/2440/1078 2013-06-19T02:27:18Z 2013-06-19T02:27:18Z Wagner, Markus Day, Jareth Leigh Neumann, Frank http://hdl.handle.net/2440/78331 2013-06-17T00:30:58Z 2012-12-31T13:30:00Z

Title: A fast and effective local search algorithm for optimizing the placement of wind turbines Author: Wagner, Markus; Day, Jareth Leigh; Neumann, Frank Abstract: The placement of wind turbines on a given area of land such that the wind farm produces a maximum amount of energy is a challenging optimization problem. In this article, we tackle this problem, taking into account wake effects that are produced by the different turbines on the wind farm. We significantly improve upon existing results for the minimization of wake effects by developing a new problem-specific local search algorithm. One key step in the speed-up of our algorithm is the reduction in computation time needed to assess a given wind farm layout compared to previous approaches. Our new method allows the optimization of large real-world scenarios within a single night on a standard computer, whereas weeks on specialized computing servers were required for previous approaches.

2012-12-31T13:30:00Z Falkner, Nickolas John Gowland Willis, Craig Robert http://hdl.handle.net/2440/78200 2013-06-05T00:30:27Z 2011-12-31T13:30:00Z

Title: E-enhancement of existing courses: Is it worth it? Author: Falkner, Nickolas John Gowland; Willis, Craig Robert Abstract: BACKGROUND: Blended learning is an approach that recognises that a combination of teaching techniques (face-to-face, on-line and mobile) can be a very effective way to share knowledge with today’s students using today’s technology. This paper introduces two case studies in Civil Engineering and Computer Science for a move to blended learning through the electronic enhancement (e-enhancement) of learning materials in well-established courses. This initiative is evidence-based and combines both quantitative and qualitative measures to evaluate the effectiveness of the learning and teaching (L&T) strategies implemented in the existing courses on both students and staff. PURPOSE: Given that there are so many ways to update and enhance a course, is it worth the effort to move to blended learning and, if so, how can we justify the investment of time and resources? DESIGN/METHOD: Two courses, a first year course in Civil Engineering and a third year course in Computer Science, were selected for enhancement and different strategies were used, including on-line materials, podcasting, rapid feedback and game-based learning, to move to a blended learning environment. We chose to monitor a set of key indicators: ongoing participation after increased electronic delivery and lecture recording, student engagement and academic performance, as resistance to blended learning often revolves around issues of reductions in lecture attendance, student engagement and academic rigour and quality. These were assessed through surveys, student outcomes, participation and self-evaluation to assess the overall impacts. The staff involved in the process also monitored their own time to assess the influence on their own workload. The assessment and analysis was carried out through both qualitative and quantitative assessment mechanisms. RESULTS: Students found the new electronic L&T materials and approach to be engaging, useful and a desirable alternative to existing materials, with strong evidence that the materials were used extensively throughout the course and in the lead-up to examinations. Student performance either improved or remained at the same level, however student satisfaction increased overall in all offerings. Staff noted that the initial investment of effort, while greater than usual, resulted in no additional time investment over the entirety of the course. Most importantly, the availability of blended learning materials had no significant impact on lecture attendance and, for the greater majority of students, was not seen as a reason to miss lectures. CONCLUSIONS: A move to a blended learning approach is desirable for a large number of courses as it allows academics to maintain pedagogical standards while increasing student satisfaction and has no significant increase in academic workload over time. However, in general, transitional support and training for staff are vital to this success, as there is an initial burden in discovering techniques that work and having the underlying support resources to achieve this success.

2011-12-31T13:30:00Z Ibrahim, Mohd Faisal Alexander, Bradley James http://hdl.handle.net/2440/78185 2013-06-04T02:30:20Z 2011-12-31T13:30:00Z

Title: Designing a navigational control system of an autonomous robot for multi-requirements planetary navigation using evolutionary approach Author: Ibrahim, Mohd Faisal; Alexander, Bradley James

2011-12-31T13:30:00Z Xie, Dong Sheng, Quan Zheng Ma, Jiangang http://hdl.handle.net/2440/78169 2013-06-03T06:30:21Z 2011-12-31T13:30:00Z

Title: A temporal-based model of uncertain RFID data Author: Xie, Dong; Sheng, Quan Zheng; Ma, Jiangang Abstract: Radio Frequency Identification (RFID) technology is widely used in object tracking and tracing. However, massive uncertain data produced by RFID readers is not effective to use in RFID application systems. According to the position and the containment features of RFID objects, this paper proposes a new temporal-based uncertain data model, which can mainly store massive missed RFID data. In addition, the model stores certain data and inferred data in the same table, and this can efficiently support a variety of queries for tracking and tracing RFID objects.

2011-12-31T13:30:00Z