The nucleation of horse spleen ferritin (HSF) crystals on substrates was investigated using a new modification of the double pulse technique. The influence of three different structureless 1 substrates (glass, glass covered by methyl groups and poly-L-lysin template) on the nucleation was studied. The boundaries in the phase-diagram, which separate zones of crystal nucleation and growth were obtained by keeping pH = 5.0, and using CdSO 4 as crystallizing agent. The steady-state nucleation rates were determined. The energy required for critical nuclei formation was evaluated (10 -13 erg) and the sizes of critical nuclei were found (5 and 2 molecules).

A dynamic model of microdischarge with a mobile liquid cathode was presented. The possibility of electron autoemission was substantiated. It was suggested that the liquid cathode rate be calculated by the Navier-Stokes equation. A scheme that shows the development of a plasma formation depending on the thickness of the coating was given. The objects found on the coating surface and in the sludge were shown to correspond to the model.