European Journal of Molecular & Clinical Medicine

This paper presents a general methodology of optimizing the energy performance of a photovoltaic panel in five different cities in Morocco, by varying its slope and azimuth. A domestic wind turbine is also studied in Casablanca. For the same capacity, simulations in TRNSYS software prove that photovoltaic panels have a better yield than the domestic wind turbines. These wind generators can be coupled with the photovoltaic system in order to lessen the intermittence of the photovoltaic production at night and during short cloudy days.

In the present paper author has been consider a system which is having a special kind of k-out-of-n redundancy namely linear consecutive 2-ot-of-4: F system. These types of system have wide application in many industrial systems especially in medical equipment. Many medical diagnose equipment (one of the example is X-ray machines) having the linear consecutive k-out-of-n: F/G system. Basically a linear consecutive k-out-of-n: G/F system is a system which work/failed if at least k consecutive components out of n components is working/failed. In the present paper one of the special cases of linear consecutive k-out-of-n: F system (by taking k=2, n=4) is investigated with the help of mathematical modelling and Markov process to find out its reliability characteristic. Critical units of the system are also obtained by sensitivity analysis.