Tensile armour wires provide a resistance to longitudinal stresses. Flexible pipe manufacturers need to know the effect of defects such as scratches and cracks, with dimensions less than 0.2mm which is the limit of the current nondestructive detection technology, on the fracture stress and fracture strain of the wire for quality assurance purposes. Recent research involving the determination of...

BACKGROUND Stab attacks generate high loads, and to defeat them, armour needs to be of a certain thickness and stiffness. Slash attacks produce much lower loads and armour designed to defeat them can be far lighter and more flexible. METHODS AND SUBJECTS Phase 1: Human performance in slash attacks: 87 randomly selected students at the Royal Military College of Science were asked to make one s...

This paper outlines how collaborative approaches were used to successfully generate research opportunities and enhance knowledge transfer in the development of new products. The researchers were drawn from across four disciplines within the University of Ulster and worked closely with an industrial partner to develop and test new approaches to the design and development of soft body armour. The...

Houseflies, Musca domestica, of both sexes from 4 to 7 days old were used. These were reared and maintained by the procedure described earlier (3). Flight muscle mitochondria, or sarcosomes, were isolated by the technique already reported (4, 5). Oxygen consumption measurements were made in a conventional Warburg apparatus. The temperature was 25” and the gas phase was air. Inorganic phosphate ...

This study tests whether living in different lake habitats in benthic and limnetic sticklebacks (Gasterosteus aculeatus complex) has resulted in divergence of antipredator traits and habitat-associated survival trade-offs. Adult benthics were larger than limnetics, had poorly developed defensive armour and showed no tendency to school with conspeciÞ cs. Limnetics, in contrast, were smaller, had...

Growing knowledge of the molecular basis of adaptation in wild populations is expanding the study of natural selection. We summarize ongoing efforts to infer three aspects of natural selection--mechanism, form and history--from the genetics of adaptive evolution in threespine stickleback that colonized freshwater after the last ice age. We tested a mechanism of selection for reduced bony armour...

The paper describes how creative processes were applied to developing a new product range, to enhance performance, streamline production, reduce costs and open up new markets for body armour solutions. It describes how a company with a proven track record in manufacturing, had lost market share during the first Gulf war due to supply chain issues and had found it difficult to regain share, as t...

Armour steel is a medium-carbon which widely used in military and defense industries owing to its ability protect from projectile bullet pressure. However, this armour still posses mechanical limitation aspect, thus it needed engineer for improvement. Therefore, the aim of research undergo properties engineering by using heat treatment method austempering within temperature variations 200, 250,...