run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...

Introduction: The main task of the emergency medical system is to provide primary care and transfer the injured to a medical center.  Studies have been conducted to investigate the outcome of helicopter and ground ambulance casualties, but they show different results.  These different results may be due to the type of study, statistical methods, differences in pre-hospital emergency systems, an...

the present study investigated construct equivalence of multiple choice (mc) and constructed response (cr) item types across stem and content equivalent mc and cr items (item type ‘a’), non-stem-equivalent but content equivalent mc and cr items (item type ‘b’), and non-stem and non-content equivalent mc and cr items (item type ‘c’). one hundred seventy english-major undergraduates completed mc ...

Background: Accidents are one of the important health problems in the medical community and the third cause of death after cardiovascular disease and cancer in the world, which can cause irreversible damage and lesion, impose heavy costs and depreciation. Therefore, this study aimed to identify epidemiological aspects of the accidents in the first six months in 2012. Materials and Methods:...

The main goal of the present study is to identify characteristics of the inter-station horizontal magnetic responses and the vertical magnetic data, as two types of magnetotelluric transfer functions, in the modeling procedure. Through consideration of model responses and two-dimensional inversion of synthetic data, sensitivity of the data components in detecting different geophysical structure...

Friction stir welding (FSW) is an economic and high quality technique at aluminum welding and joining methods. The most important factor in the soundness of this type of welding, is the mechanism of material transfer in each tool rotation. The materials transfer during the welding process involves horizontal and vertical movement that caused by extrusion process and forging force (the tilt angl...