A new computational method for the elastic interaction between dislocations and precipitates is developed and applied to the solution of problems involving dislocation cutting and looping around precipitates. Based on the superposition principle, the solution to the dislocation–precipitate interaction problem is obtained as the sum of two solutions: (1) a dislocation problem with image stresses...

Seventy-five consecutive patients aged 15 to 55 years with aneurysmal subarachnoid haemorrhage verified by CSF examination and cerebral angiography or at necropsy were studied. In 19 cases (25%; four women and 15 men) the bleeding was preceded within 24 hours by a bout of alcohol drinking. Alcohol-related cases composed 33% and 14% of the patients in the age groups 15-40 and 41-55 years, respec...

1. In these studies several phases of the predpitm reactions were investigated by the use of purified proteins as antigens. These preparations were edestin from hemp-seed and crystalline ovalbumin from fresh eggs. The ovalbumin, isolated by the method of Hopkins and Pinkus,.was apparently as pure as is obtainable by chemical means. This albumin, however, produced moderately severe anaphylactic ...

This contribution deals with the numerical simulation of dislocation dynamics by means of parametric mean curvature flow. Dislocations are described as an evolving family of closed and open smooth curves driven by the normal velocity. The equation is solved using direct approach by semi-discrete scheme based on finite difference method. Numerical stability is improved by tangential redistributi...