The mechanized drawn arc stud welding is a well established process in steel construction for joining technique pin shaped elements, especially the field of composite constructions. Therefore, commonly applied on sites under different climatic conditions. characterized by its relatively high heat input due to current and weld pool protection that realized ceramic ferrule holding metal vapor as ...

this paper presents an auto redundant technique for analysis of grid with curved members.this technique is based on the force method, but in the technique choice of the redundant iscompletely eliminated. the analysis technique is found very effective, accurate andprogrammable. a comprehensive c++ program has been developed to compute internalforces at the end of each member of the grid for diff...

this research has been done for aim assessing of structural factors and environmental non-governmental organizations performance is descriptive – surveying. statistical population is consisted of all members of environmental non- governmental organizations in khuzestan province(n=359) that using cochran formula, 90 members were chosen and examined through the proportional stratified random samp...