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This research aims to study the effect of varus malalignment to knee adduction moment (KAM) during walking using 3D gait simulation. KAM is the product of frontal ground reaction force and frontal lever arm; it is a major cause of pain at the lateral knee that is the general symptom of osteoarthritis (OA). For treatment, lateral fixed wedge insole and variable-stiffness shoes were used to treat OA...
Most mobile robot, walking mechanism and the ability to move from point to point were the most crucial part to design. Being able to survive through impact condition is essential for robot under crucial circumstances such as rescue robots or military robots. In this paper, we design and develop a robot with the impact reduction mechanism which based on the compliant design of its legs. The stiffness...
The purpose of this study is to design and fabricate an actuator system for a 3D tactile display. Small size actuator or portable actuator has many possible applications in medicine and industry. In the past, motors have been widely used to create motion in large-area tactile displays. Thus, the device discussed in this paper uses shape memory alloy (SMA) which allows us to create a small, lightweight...
This paper addresses the characteristic response of soft tissue to the growth of a cut (cracking) with a scalpel blade. We present our experimental equipment, experiments, and the results for scalpel cutting of soft tissue. The experimentally measured cut-force versus cut-length data was used to determine the soft tissue's resistance to fracture (resistance to crack extension) in scalpel cutting....
Understanding soft tissue response during tool tissue interaction is important for developing a reality based haptic interaction model for surgical training and simulation. In this work, experiments were conducted to cut liver specimens with nonuniform thickness. Three cutting speeds ranging from 0.1 cm/sec-2.54 cm/sec were used. The cutting forces, cutting tool displacement, and tool/tissue imaging...
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