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Unpowered wireless generation and sensing of ultrasound
SPIE Proceedings, 2013ABSTRACT This paper presents a wireless ultrasound pitch-catch system that demonstrates the wireless generation and sensing of ultrasounds based on the principle of frequency conversion. The wireless ultrasound pitch-catch system consists of a wireless interrogator and two wireless ultrasound transducers.
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Research of Unpowered Cleaning Equipment for Blanket Cylinder
Applied Mechanics and Materials, 2013In order to enhance the cleaning speed, reduce the cleaning cost and solve other problems of the existing cleaning equipment for blanket cylinder, we put forward a new-type unpowered cleaning equipment for blanket cylinder after a comparative analysis between powered spurt brush type cleaning equipment and unpowered cleaning cloth type cleaning ...
Chuan Dong Lv, Ji Fei Cai, Run Xie
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A Method of Height Adjustment for Unpowered Emergency Landing
Applied Mechanics and Materials, 2014The aircraft needs to adjust its heading angle to go to the landing window after the loss of thrust. However, the actual height of the aircraft within the landing area may be higher than that of the landing window. In order to ensure a safe landing, a spiral drop is needed to lose height.
De Gang Huang, Wei Guo Zhang, Yun Yan Wu
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Reducing the Energy Cost of Human Running Using an Unpowered Exoskeleton
IEEE transactions on neural systems and rehabilitation engineering, 2018In this paper, we present a new perspective to design an unpowered exoskeleton for metabolic rate reduction in running. According to our studies on human biomechanics, it was observed that having a torsional spring that applies torque as a linear ...
Rezvan Nasiri +2 more
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International Journal of Dynamics and Control, 2023
A. Mahmood +2 more
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A. Mahmood +2 more
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Cooperative Guidance Law for Unpowered Missiles
2021 China Automation Congress (CAC), 2021Da Zhang, Kexin Liu
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The Determination of Maximum Range for an Unpowered Atmospheric Vehicle
The Journal of the Royal Aeronautical Society, 1964SummaryThe problem of maximising the range of a given unpowered, air-launched vehicle is formed as one of Mayer type in the calculus of variations. Eulers’ necessary conditions for the existence of an extremal are stated together with the natural end conditions.
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The unpowered rotor - A lifting decelerator for spacecraft recovery
2nd Aerodynamic Deceleration Systems Conference, 1968Rotor for entry vehicle recovery systems, noting advantages of decoupled and integrated ...
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