Effect of loading frequency on the endurance of duralumin in air and in corrosive media

The effect of loading frequency (6000 and 200 cpm) on the endurance of D16T duralumin in air and in water was studied. It was established that the frequency effect depends on the working medium.     

Action of a laser on a porous explosive substance,without initiation

We have studied the crater formation in specimens of porous explosive materials, the change in the light transmission of thin explosive layers, and the distortion in the shape of light pulses transmitted through such layers, at laser emission energy densities which do not produce initiation of the explosive. It has been demonstrated that these pehnomena are, a consequence of the optical breakdown of a dielectric (the explosive) and the process separating the ranges, in terms of radiant energy density, of linear and nonlinear light interaction with the explosive material.Chernogolovka. Translated from Fizika Goreniya i Vzryva, No. 2, pp. 97–101, March–April, 1991.     

d-Lactose oxidation over gold catalysts

Various supported gold catalysts were utilized in aerobic lactose oxidation. Comparison between these catalysts revealed, that gold catalysts are sensitive to the type of support. Kinetic regularities, e.g. dependence on pH, temperature and oxygen feed rate were established. Gold catalysts were selective for the production of the first reaction product, sodium salt of lactobionic acid. The electrochemical catalyst potential response was measured “in situ” and then utilized in the reaction process characterization.