Consequent to previously published theoretical work by Marshall, Broucke, and Francis, this paper summarizes the apparatus and results of multirobot coordination experiments conducted at the University of Toronto Institute for Aerospace Studies. These experiments successfully demonstrated the practicality of cyclic pursuit as a distributed control strategy for multiple wheeled-robot systems. Mo...

A Rover’s wheel performance is one of the limiting factors in its ability to successfully traverse other planets. More research focusing on wheel materials, design, and optimized tread patterns needs to be conducted so that a rover can reach more of its potential. A wheel test bed is being fabricated to test new wheel designs and to collect data which will be used to map the relationship betwee...

Pseudo-random testing is popularly used, particularly in Built-In Self Test (BIST) applications. To achieve a desired fault coverage, pseudo-random patterns are often supplemented with few deterministic patterns. When positions of deterministic patterns in the pseudo-random sequence are known a priori, pseudo-random sub-sequences can be chosen such that they cover these deterministic patterns. ...

Dr Allan Jamieso7i demonstrated the lamp made by Messrs Marshall & Woods, London, for the light treatment of lupus. This is a simple and comparatively inexpensive apparatus, a modification of the method so successfully employed by its discoverer, Dr Finsen of Copenhagen. In the original Finsen lamp, an arc light of great power and brilliancy was and is used. This necessitated the removal of the...

helicobacter pylori is an important human pathogen and a gram-negative, spiral shaped and microaerophilic bacteria with persistence colonization in gastric mucosa, causes gastroduodenal inflammation and destruction, resulting in diseases such as duodenal ulcer disease, gastric ulcer disease. when h.pylori discovered by warren and marshall, effective therapy developed for this infection and resu...

The influence of surface roughness magnitude and direction on dry static friction coefficient between two similar steel samples has been studied through an experiment. A testing apparatus has been designed and fabricated to measure the friction coefficient for a few forms of surface asperity. According to the results of the experiments, dry friction coefficient is affected by both magnitude and...