نتایج جستجو برای: independent joint control
تعداد نتایج: 1879802 فیلتر نتایج به سال:
Background and purpose: Reports of pattern motion between lumbar spine and hip vary for stoop, loading conditions or the pathology present, such as chronic back pain. Therefore, the purpose of this study was to compare the relative contribution of the hip joint and lumbar spine during stoop lifting in subjects with and without a history of low back pain. Materials and Methods: This clinica...
In this paper the feedback control system of SCORA-ER14 robot is implemented using SIMULINK environment in MATLAB. The control structure of a SCORA-ER14 robot is like any other SCARA type robot, which is essentially independent joint control. Here the feedback from the output side of the each individual Axes is taken and the entire control scheme is governed by PID control law. The parameters o...
Joint flexibility is a very important factor to consider in the controller design for robot manipulators if high performance is expected. Most of the research works on control of flexible-joint robots in literature have ignored the actuator dynamics to avoid complexity in controller design. The problem of designing nonlinear controller for a class of single-link flexible-joint robot manipulator...
Abstract Background: Accreditation is a program that is designed for evaluation of health care organizations and measured processes and structures according to predetermined standards. The purpose of this study is to survey the safety situation and quality of care in selected hospitals of Tehran University of medical sciences based on the Joint Commission International (JCI) standards and de...
BACKGROUND Osteoarthritis is the most common form of joint disorder and a leading cause of pain and physical disability. Observational studies suggested a benefit for joint lavage, but recent, sham-controlled trials yielded conflicting results, suggesting joint lavage not to be effective. OBJECTIVES To compare joint lavage with sham intervention, placebo or non-intervention control in terms o...
Background: Nowadays, unstable shoes have been developed in motor activities among people. The purpose of this study was to test the effect of unstable shoes on lower extremity joints power during stance phase of running. Methods: In this semi experimental study, 30 subjects (age of 21±2.27 years, mass of 72.3±8.84 kg, height of 176.9±5.39 cm) ran in barefoot, unstable and control sho...
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