Results 21 to 30 of about 137,388 (266)
Adaptive sliding mode control with gravity compensation: Application to an upper-limb exoskeleton system [PDF]
MATEC Web of Conferences, 2019 This paper presents a robust control algorithm with gravity compensation in presence of parametric uncertainties. The application deals with an upper limb exoskeleton system, aimed for a rehabilitation application. The treated system is an robot with two
Bembli Sana +2 more
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Shock and Vibration, 2021 Mechanical automatic vertical drilling tools (MAVDT) have gradually gained attention as a drilling tool that can achieve active correction in harsh working environments such as high temperature and high pressure.
Jin Wang +5 more
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Running of the spectral index and inflationary dynamics of F(R) gravity
Physics Letters B, 2022 In this work we shall provide a model-independent general calculation of the running of the spectral index for vacuum F(R) gravities. We shall exploit the functional form of the spectral index and of the tensor-to-scalar ratio in order to present a ...
S.D. Odintsov, V.K. Oikonomou
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A new PC control software for ZLS-Burris gravity meters
Geodesy and Geodynamics, 2018 The previous operation of the ZLS-Burris gravity meter using a PDA already provides a significant improvement of the operation of a metal spring gravity meter.
H. Richard Schulz
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Journal of Orthopaedic Surgery, 2018 Purpose: To evaluate the influence of different arm postures from the physiological standing position using force plate analysis of the gravity line. Methods: Forty healthy volunteered university students were enrolled.
Koon-Man Sieh +3 more
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Journal of Aerospace Technology and Management, 2023 Aimed at the deficiency of existing PID controller for quad rotor UAV, a single neuron PID controller with gravity compensation is presented. After using feed forward control to compensate gravity, the position loop adopts PID control to ensure control ...
Haitao Zhang, Lulu Yang
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Postural adaptation to microgravity underlies fine motor impairment in astronauts’ speech
Scientific Reports, 2023 Understanding the role of anti-gravity behaviour in fine motor control is crucial to achieving a unified theory of motor control. We compare speech from astronauts before and immediately after microgravity exposure to evaluate the role of anti-gravity ...
Arian Shamei +3 more
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Human manual control performance in hyper-gravity [PDF]
Experimental Brain Research, 2015 Hyper-gravity provides a unique environment to study how misperceptions impact control of orientation relative to gravity. Previous studies have found that static and dynamic roll tilts are perceptually overestimated in hyper-gravity. The current investigation quantifies how this influences control of orientation.
Newman, Michael C. +4 more
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Control Strategies of Gecko’s Toe in Response to Reduced Gravity
Applied Sciences, 2020 Shear-induced adhesion is one of the key properties for the gecko moving safely and quickly in a three-dimensional environment. The control strategies of such locomotion strongly relying on adhesion are still not well understood.
Zhongyuan Wang +2 more
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Gravity field modelling and gravimetry
Geodesy and Cartography, 2015 The summary of research activities concerning gravity field modelling and gravimetric works performed in Poland in the period of 2011-2014 is presented.
Krynski Jan
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