Introduction: Ozon is increasingly used for swimming pools disinfecting in Iran. The scope of this cross-sectional study was to the determine ozonation eficiency and influence of pool depth and swimmers gender on the six microbial quality indices. Methods: In this investigation, total Coliform, E.Coli, Heterotrophic bacteria, Streptococcus Feacalis, Staphylococcus Aureus and Pseudomonas Aero...

any change in the refractive index of a laser active medium can lead to serious degradation of beam quality, laser beam modes, laser performance and variation in the intensity distribution. alteration in the refractive index of laser active medium is especially notable in high power lasers. it is clear that in the laser beam production, the pumping agent induces a great amount of heat which...