In this paper a new method to determine the fracture properties and strain energy release rate for Carbon- Polyester composite has been introduced.  Fracture characteristics such as critical stress intensity factor and critical strain energy release rate for mode I, mode II and mixed mode loading were determined using Arcan type specimen. 130 layers of carbon fiber polyester woven composite wit...

background heat is a harmful factor in workplaces that causes physiologic and cognitive changes in workers. objectives the purpose of this study was to investigate the effect of cooling vest on heat strain and reaction time while wearing chemical-biological-nuclear protective clothes. methods twelve male students with mean age of 25 ± 2 and body mass index (bmi) of 23 ± 1.5 were recruited in th...

background: the late postoperative course for children with transposition of the great arteries (tga) with an intact ventricular septum (ivs) is very important because the coronary arteries may be at risk of damage during  arterial switch operation (aso). we sought to investigate left ventricular function in patients with tga/ivs by echocardiography. methods: from march 2011 to december 2012, t...