This paper investigates the underwater optical image restoration method under background of target detection based on vision in AUVs. The light source used for AUV is different when operates depths. natural shallow water and artificial deep water. these two conditions. Aiming at problem blurring images, traditional scattering model can obtain satisfactory performance However, it cannot same res...

Mosque architecture is considered as a potent visual symbol of the Islamic architects’ design ability. Prayer-hall as the manifestation of equality between the believers and the unity of architectural space has challenged such an ability throughout the history. This study, considering the characteristics of light-openings in the domes of Iranian mosques’ Prayer-hall, aims to investigate thes...

natural frequency is one of the parameters that represent useful information about the dynamic behavior of structures. controlling this parameter can decrease the probability of damage under dynamic loading. weight optimization on layout and sizing with frequency constraints is a well known problem because of its highly non-linear behavior. improved ray optimization (iro) algorithm is utilized ...