the aim of this article is study of tool plunge depth (tpd) effects on mechanical properties of friction stir welding of aa1100 aluminium alloy to a441 aisi steel. for this purpose the 0.1, 0.2, 0.4, and 0.6 mm tpd selected and other welding parameters kept constant. the results shows that the frictional heat increases and stir zone grain size decreases with increasing tpd at both base metals. ...

Objective (s):Rheumatoid arthritis (RA) is a chronic systemic inflammatory disorder, primarily targeting the synovium and articular cartilage that leads to joint damage. Recent reports have suggested the role of adipocytokines in mediating joint damage; however it still is a matter of debate. The purpose of this study was to evaluate the association between serum values of adiopocytokines (lept...

creating joint-use libraries, backed to 100 years ago, unfortunately many countries have not yet began to build such libraries. regarding the increasing number of libraries, the most important issue for interaction between libraries as places of intellectual life and centers for activities is to create joint-use libraries and information places for the public. it is obvious that building such n...

background:  the glenohumeral joint becomes dislocated more than any other major joint because it maintains a wide range of motion and its stability is inherently weak. the most common complication following acute initial shoulder dislocation is recurrent dislocation or chronic instability. imbalance of strength and range of motion in individuals with anterior dislocation can be a contributing ...

introduction: there are some internal and external factors in the development and supporty of joint. the role of movement on foint development could be study in three methods. in vitro limb buds culture limb bud graft to coelomic membrance. neuromuscular function block. the development of the fourth metatarsophalyngeal joint of swiss mice was studied in normal circumstances and the absence of m...