Abstract: The proportional directional valve is a key component in electro-hydraulic control systems; however, existing solutions face structural and functional challenges. The mechanical feedback ...

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Abstract: Pneumatic soft robotics is known for its high adaptability and strong load capacity, and the pneumatic control system is regarded as the neural system of pneumatic soft robots to transmit ...

Large-scale phase gradients of electrocorticogram theta-alpha oscillations spontaneously appeared in anterior-to-posterior direction during picture naming and wrist extension tasks. Neural mechanisms ...

Control theory is a branch of mathematics and engineering, which defines the conditions needed for a system to maintain a controlled output in the face of input variation. Classically developed for ...

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Heart valves keep blood flowing in the right direction between the heart's four chambers. Mechanical valves last longer than bioprosthetic valves but require lifelong blood thinners. Most of the time, ...