Article history: Received 1.11.2012 Received in revised form 10.12.2012 Accepted 10.12.2012 Based on the RNG k-ε model, the finite volume model of friction stir welding of Ti6Al4V alloy is established by ANSYS FLUENT software. The effect of rotational tool geometry on titanium alloy flow behaviour is exhibited. The results of numerical simulation show that the flow direction of material near th...

The Friction Stir Welding process is now 20 years old and the interest in it and its potential continues to increase dramatically. FSW can be applied to a multitude of products with varying material types and thicknesses. However, a continuous weld is not always required to meet the product performance requirements. Thus, one can consider some form of intermittent weld, such as Friction Stir Sp...

It was in 1987 that McNeal and Bostwick first described intraductal dysplasia during a whole-mount pathologic investigation of 100 prostates without cancer and 100 with cancer that were diagnosed in the pre–prostate-specific antigen era. They found foci of dysplasia in 82% of the prostates harboring cancer compared with 43% in those without cancer. Interestingly, both the grade and volume of dy...

OBJECTIVE To describe an extra-articular joint distractor for meniscal examination and treatment during canine stifle arthroscopy. STUDY DESIGN Case series. ANIMALS Dogs >or=20 kg with suspected cranial cruciate ligament (CrCL) deficiency. METHODS A custom designed linear side bar was constructed to allow invasive pin distraction of the stifle joint. Its design efficacy for distraction of...

Article history: Received 2.10.2012 Received in revised form 30.1.2013 Accepted 1.3.2013 Heat production of friction stir welding (FSW) is a fundamental phenomenon that affects the welding quality. Early studies have been focused on investigating and understanding the heat production and temperature distribution of the welding plate. However, very few studies have been done to analyze the stres...

Differential signaling has been a major challenge in design automation. The routing of differential pairs requires a suitable pin assignment of the respective nets. However, current automatic pin assignment algorithms lack the ability to consider differential pairs. We present a methodology to include differential pairs during pin assignment. Our solution can be applied to automatic or manual p...

abstract background: distal radial fracture is one of the most common fractures of the skeletal system. although it has been believed to be a simple fracture with excellent outcomes, practical operations’ results have always been undesirable and even poor. the goal of this study was to compare two methods of treatment “pin and plaster and precautious pin fixation in patients with unstable extra...