Geometric scaling of a Kerr-lens mode-locked Yb:YAG thin-disk oscillator yields femtosecond pulses with an average output power of 270 W. The scaled system delivers femtosecond (210-330 fs) pulses… (More)

The effects of ultra wideband pulse radiation on human cells were investigated. The density of the flow of energy on the surface of irradiated object varied from 10−6 to 10−2 W/cm2 with exposure of… (More)

Upper and lower bounds of ruin probabilities for the S. Andersen model with large claims are proposed. The bounds are stated in terms of the corresponding ladder height distribution and have a… (More)

A version of the toll setting problem consists in determining profit maximizing tolls on a subset of arcs of a transportation network, given that users travel on shortest paths. This yields a bilevel… (More)

This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, redistribution , reselling , loan or sub-licensing, systematic supply or… (More)

If a regenerative process is represented as semi-regenerative, we derive formulae enabling us to calculate basic characteristics associated with the first occurrence time starting from corresponding… (More)

where F : R × R → R, and Y is a closed subset of R. The bilevel programming problem is called the upper level, or the leader’s problem. In order to assure that the bilevel programming problem is… (More)