نتایج جستجو برای: position and velocity
تعداد نتایج: 16861482 فیلتر نتایج به سال:
physical exercise would improve postural stability, which is an essential factor in preventing accidental fall among the elderly population. the aim of this study is to examine the effectiveness of treadmill walking on balance improvement among the elderly people. a total of 30 community dwelling older adults with a berg balance scale score of 36-48 and the ability to walk without aid were cons...
mobile robot navigation is one of the basic problems in robotics. in this paper, a new approachis proposed for autonomous mobile robot navigation in an unknown environment. the proposedapproach is based on learning virtual parallel paths that propel the mobile robot toward the trackusing a multi-layer, feed-forward neural network. for training, a human operator navigates themobile robot in some...
It is generally assumed that local muscular fatigue predisposes the individual to injury. Despite the significance of muscular fatigue and endurance, there are not much dynamic endurance studies for trunk muscles in the literature. Most of them have used isokinetic dynamometer which keeps the velocity of movement constant. In this studies with the help of an isoinertial dynamometer we have asse...
In this paper, exact solution for two-plane transverse vibration analysis of axial-loaded multi-step Timoshenko rotor carrying concentrated masses is presented. Each attached element is considered to have both translational and rotational inertia. Forward and backward frequencies and corresponding modes are obtained using transfer matrix method (TMM). The effect of the angular velocity of spin,...
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