The hypothesis used in developing the stress and strain in the shaft is that all points on a cross-section of the shaft experience the same angle of twist. The angle of twist for a section of length L ...

Spider silk has attracted the attention of many scientists because of its desirable physical properties. Most of this attention has been devoted to dragline silk, a thread that has high tensile ...

From six different types of work 120 men, aged 23— 60 a, were classified according to the Ergonomie Job Description Questionnaire into four groups representing specific work content (producing forces, ...