Cr-Mn-Si alloyed high-strength steel was subjected to deep cryogenic treatment after quenching and tempering (Q-T), the microstructure property evolution of alloy were studied. The tensile strength increased by about 30 MPa, yield decreased 10 grains refined, indicating that toughness can be relatively improved via (−120 °C × 1 h); secondary carbides precipitated inside martensitic matrix unifo...

OBJECTIVE This prospective clinical trial was performed to compare the safety and efficiency of intra-articular lidocaine (IAL) versus intravenous sedative and analgesic (IVSA) in reduction of anterior shoulder dislocation. MATERIALS AND METHODS Patients with anterior shoulder dislocation were randomly divided into 2 groups to receive IAL and IVSA. One group patients received an intravenous d...

background: trans-scaphoid perilunate fracture-dislocation and perilunate dislocations are among uncommon injuries, most commonly seen in young patients due to high energy trauma. the treatment can be achieved either surgically by open reduc tion and internal fixation or closed reduction and casting.   methods: to compare surgical versus non-operative results of treatment of trans-scaphoid peri...

Subtalar dislocation refers to the simultaneous dislocation of the distal articulations of the talus at the talocalcaneal and talonavicular joints. Closed reduction and immobilization remains the treatment of choice. However, if closed reduction is unsuccessful in some patients, open reduction is required. Open reduction can be associated with higher energy subtalar dislocations. A variety of b...

The mesoscopic constitutive behavior of face-centered cubic metals as a function of the system characteristic dimension recently has been investigated experimentally. Strong size effects have been identified in both polycrystalline submicron thin films and single crystal micro pillars. The size effect is manifested as an increase in strength and hardening rate as the system dimensions are decre...

hip dislocation occurs when the femur does not break and the force is transmitted towards the hip joint leading to a posterior dislocation of the femoral head with or without posterior acetabular fracture. we present the case of a 26 year old patient involved in motor vehicle accident. clinical and imaging (radiography, ct) examination revealed an intertrochanteric fracture associated with ipsi...

This paper proposes the RTDWD (Real-time Distributed Wideband-Delphi) tool, a real-time collaborative web application for user stories estimation through the Wideband-Delphi method. RTDWD realizes, in a lightweight way, virtual meetings for a critical phase of the requirements management in distributed Agile development processes, such as Distributed eXtreme Programming. The web 2.0-based natur...