Chris Malcolm

Learn More
Saline sites suffer variations in surface salinity, available soil water, temperature, soil crust strength and other factors which can influence germination and establishment. For establishment to occur the germinating seed must capitalise on a window of opportunity. This window can be widened by placing seeds in a low-salt niche, covering the seeds with a(More)
We present a novel approach that incorporates information from sonar and infrared sensors mounted on a rotating platform to obtain feature-based stochastic maps of the environment. The purpose is to reliably determine the position of a robot and the features in its environment using low cost sensors. Line and corner features are extracted from the sonar(More)
The shift of post-genomics towards a systems approach has offered an ever-increasing role for artificial intelligence (AI) and robotics. Many disciplines (e.g. engineering, robotics, computer science) bear on the problem of automating the different stages involved in post-genomic research with a view to developing quality assured high-dimensional data. We(More)
The social impact of urban devastations has given rise to the field of Urban Search and Rescue Robotics. The interest in this field has increased during the last few years due to several devastations occurring all over the world with thousands of victims. We hereby present the results of our experiments with sensors designed and developed for a homogenous(More)
A study was carried out to determine the prevalence and concentrations of pesticide residues in conventionally grown and organic produce (bananas, broccoli, grapes, lettuce, potatoes, tomatoes, wine). Sampling was stratified, with organic produce being over-sampled, when available. All food samples were analysed, as received, by a multi-residue pesticide(More)