The mathematical model of task of optimization and method of her decision is considered, with the use of modern programmatic tools, on the example of design of network of power supply of network the determined structure and by energythreads in it, by the parameters of sources of power supply, lines of electricity transmissions, distributive points and others like that.

Given mathematical model generate optimum plan for the periodic pays from the income, using simple ratios of main parameters. This can be done without bulky and complex dynamic programming. It allows executions of fast analyze tasks and making scientifically grounded plans of investment in production developments. Given method can be applied for similar tasks of greater complexity, where some parameters can vary each year or it can be used for many production sites at once.

Рассмотрены вопросы моделирования процесса седиментации частиц крови под действием неоднородных центробежных сил. Определены основные параметры оседания, а также показан характер движения границы плазма/эритроциты с учетом свойств крови животных