All articles by TluchovskayaStepanenko N. P.

2018 № itm The Network model for Estimation of duration laser contact lithotripsy
The comparative characteristic of network models with random parameters is executed. It is offered to use as model of the lithotripsy procedure the stochastic network model. In article is examine the assessments questions of laser lithotripsy duration time. The original network alternative stochastic model of the procedure of a laser contact lithotripsy allowing to realize assessment of operation length of a laser lithotripsy in general is developed. It is shown that frequency curve of runtime of stages of operation is described by betadistribution. Are given the mathematical expressions allowing to calculate optimistic, pessimistic and most probable assessment of duration of separate stages of a lithotripsy and operation in general