power system overvoltages due to switching, lightning and other disturbances are the main problem for designers of the power transformers. once some frequencies of the incoming surges match with some of the natural frequencies of transformer winding, the resonance phenomenon is expected in transformer winding. the resonant overvoltages may destroy the insulation between turns and cause to insul...

1 Introduction Filament winding is a popular production technique for composite structures. Cylinder pressure vessel with elliptical dome is an efficient product which can make full use of tensile strength of fiber. To achieve the most efficient use of the reinforcement material the fiber should be placed in the maximum load directions or in geodesic path. This is not always achievable as the f...

During the past century, physiologists have made steady progress in elucidating the molecular mechanisms of muscle contraction. However, this progress has so far failed to definitively explain the high force and low energy cost of eccentric muscle contraction. Hypotheses that have been proposed to explain increased muscle force during active stretch include cross-bridge mechanisms, sarcomere an...