This paper describes the development and evaluation of a custom-built impedance analyser, which uses a multiplexing bridge circuit to characterise an array of polymer-coated quartz crystal microbalance (QCM) sensors. The analyser is constructed on a single printed circuit board with minimum components and is sufficiently compact for integration into a hand-held format. The custom-built device i...

For microwave designs and when designing for electromagnetic compatibility (EMC), we need competent models of passive surface mount devices (SMDs), that is: resistors, capacitors and inductors. Such models are not always available or trustworthy, so we sometimes need to measure the impedance of these components ourselves. Appropriate measurement equipment exists, but often exceeds the available...

This paper describes the development of an intelligent computer-assisted language learning (ICALL) system for learning Arabic. This system could be used for learning Arabic by students at primary schools or by learners of Arabic as a second or foreign language. It explores the use of Natural Language Processing (NLP) techniques for learning Arabic. The learners are encouraged to produce sentenc...

A computerised image analyser has been used experimentally to determine its possible usefulness in quantifying bone density. Rats were prepared for this purpose and ash weight/volume readings were obtained on femora which had been radiographed and studied to estimate radiographic density by means of the image analyser. The findings indicated that rats can be prepared by administering oestradiol...

A fully-automated open in vitro diagnostics analyser is described.