Operational problems with robot manipulators in space relate to several factors, most importantly, structural flexibility and subsequent difficulties with their position control. In this paper we present control methods for endpoint tracking of a 12 6 12 6 m2 trajectory by a two-link robot manipulator. Initially, a manipulator with rigid links is modeled using inverse dynamics, a linear quadrat...

introduction: to determine the prevalence of depressive disorder and it's related factors in the patients with rheumatoid arthritis. methods: this cross-sectional study was conductd from april 2013 to august 2014.a total of 81 patients with rheumatoid arthritis (ra) were enrolled from rheumatology clinic, shahid beheshti hospital, kashan/ iran. the severety of depressive disorder was measured b...

Devices that are pinned to the tibia to tension an anterior cruciate ligament (ACL) graft produce joint reaction loads that in turn can affect the maintenance of graft initial tension after tibial fixation and hence knee anterior-posterior (AP) load-displacement. However, the effect of these devices on AP load-displacement is unknown. Our objectives were to determine whether tensioning by devic...