In this study, dynamic behavior of safety mechanism of a mechanical controller is investigated using 3D-FE simulation. This paper is concentrated on controller of a high acceleration projectile. The controller is located in the top of the projectile. Safety mechanism is divided to deformable and rigid parts. Deformable and rigid parts are simulated in Abaqus and Adams commercial soft wares; res...

obviously, improving the road safety and the efficient allocation of limited resources to the provinces according to their ranking should be done. this paper presents a hybrid method of multivariate statistical analysis-decision making to evaluate iran road traffic safety. in order to solve the problems of road traffic safety, a macroscopic evaluation and traffic safety level classification in ...

background: it is believed that improved safety culture/climate is a fundamental element to accident prevention. therefore, development a scale to assess safety climate is a step towards accident control. the purpose of this study was to construct a persian safety climate questionnaire. methods: the study took place in tehran and esfahan oil refineries in iran in 2010. an initial questionnaire ...

Background: Lower extremity injuries are frequently observed in car-to-pedestrian accidents and due to the bumper height of most cars, knee joint is one of the most damaged body parts in car-to-pedestrian collisions.Objective: The aim of this paper is first to provide an accurate Finite Element model of the knee joint and second to investigate lower limb impact biomechanics in car-to-pede...

background and objectives: medical errors and adverse events have recently turned into one of the predominant concerns of health-policy makers and health services providers. promoting safety culture is fundamental to sustainable safety improvement in healthcare settings. the purpose of this study was to examine the effect of training on nurses’ attitudes towards safety culture.   methods: a cro...