David K. Harrison

Learn More
In order to improve effectiveness of supply chain management and compete in today's dynamic global markets, it is not sufficient to have effective integrated processes within a business; synchronized operations of all partners in the supply chain is required. In the past, this has been achieved by one company owning or having control over all businesses in(More)
This paper presents an algorithm for the near-optimal allocation of buffer space to an assembly line by means of the ant colony optimisation (ACO) paradigm. Uniquely, the algorithm has been designed to work in conjunction with a simulation model and is adapted to have both combinatorial and stochastic problem-solving capability. The simulation model was(More)
In this paper, the use of companding as an effective tool for minimizing the peak-to-average power ratio (PAPR) of OFDM signals is presented. The influence of in-band and out-of band noise due to sampling and compression is considered. The bit-error-rate (BER) performance for different companding profiles is also evaluated for transmissions within an AWGN(More)
Considering the rapid fast advancement in hardware and software medium technologies, product visualisation and customisation methods in online stores are evidently lacking both realism and interactivity. The advantages that Virtual Reality system makes available by means of high level of product visualisation, real time interaction and promoting hedonic(More)