the puppose of this research is identification of the impact of organizational culture factors and organizational structure factors on whistle-blowing. we used mixed method. at first stage, we used qualitative method; so, we used delphi technic and finally, by reaching consensus comments, we found 21 items with 0/441 coefficient of agreement. then, in the second stage, we use quantitative appro...

in recent years, the application of composite materials in aircraft and space vehicle structural components has become increasingly popular. preventing failure of composite structural systems has been an important issue in engineering design. due to the lack of through-the-thickness reinforcement, structures made from laminated composite materials and adhesively bonded joints are highly suscept...

in an earthquake country like iran it is of paramount importance that the structural form be sound. the designer must be able to predict satisfactorily the behavior of the structure in the event of a strong ground motion. in order to be able to make a wise choice, he also should know enough about the consequences of the earthquake damage to the structure and economic factors involved. this pipe...