ABSTRACFThe presented method is based on the bactericidal effect of micro-blast induced by various sources (laser breakdown, electrohydraulic effect...). Using elaborated conception of physical phenomena providing liquid disinfection it is possible to determine optimal conditions of water treatment. The problem of optimization is solved using methods of mathematical modeling and special experiments.

We propose the physical and mathematical models for the mechanism explaining the reduction in experimental breakdown thresholds of optical materials by self focusing of radiation on dynamic irregulari ties of the refractive index (dynamic lenses) as compared to avalanche ionization and multiphoton absorption predicted by theories.

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Long distance propagation of a Stonely wave is caused by the concentration of the wave energy in the thin layer near the bottom. Such a property makes it possible to use the generation of a Stonely wave for transmission of information. The main applications can be concerned with registration of volcano eruptions, underwater explosions, and elaboration of new methods of long distance communications. The mathematical model calculations are analyzed and confirm the possibility of the long distance propagation and use of a Stonely wave in the applications mentioned above.

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