Results 21 to 30 of about 155,574 (308)
A haptic illusion created by gravity
iScience, 2023 Summary: Human dexterity requires very fine and efficient control of fingertip forces, which relies on the integration of cutaneous and proprioceptive feedback. Here, we examined the influence of gravity on isometric force control.
Laurent Opsomer +4 more
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Research Progress in Surface and Marine Gravimetry [PDF]
Journal of Geodesy and Geoinformation Science, 2023 Gravity field is the most basic physical field generated by the material properties of the Earth system. It reflects the spatial distribution, movement and change of materials determined by the interaction and dynamic process inside the Earth.
Heping SUN, Lifeng BAO, Shi CHEN, Xiaoming CUI, Qianqian LI, Lulu JIA, Jianqiao XU, Jiangcun ZHOU, Minzhang HU, Yiqing ZHU, Xiaodong CHEN, Lin WU, Jiancheng HAN, Honglei LI, Miaomiao ZHANG, Linhai WANG
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Gravity-efficient motor control is associated with contraction-dependent intracortical inhibition
iScience, 2023 Summary: In humans, moving efficiently along the gravity axis requires shifts in muscular contraction modes. Raising the arm up involves shortening contractions of arm flexors, whereas the reverse movement can rely on lengthening contractions with the ...
Nicolas Gueugneau +3 more
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All-propulsion design of the drag-free and attitude control of the European satellite GOCE [PDF]
, 2009 This paper concerns the drag-free and attitude control (DFAC) of the European Gravity field and steady-state Ocean Circulation Explorer satellite (GOCE), during the science phase.
Luca Massotti +3 more
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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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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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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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Drag-free and attitude control for the GOCE satellite [PDF]
, 2008 The paper concerns Drag-Free and Attitude Control of the European satellite Gravity field and steady-state Ocean Circulation Explorer (GOCE) during the science phase.
Canuto, Enrico
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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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Evolutionary neurocontrol: A novel method for low-thrust gravity-assist trajectory optimization [PDF]
, 2009 This article discusses evolutionary neurocontrol, a novel method for low-thrust gravity-assist trajectory ...
Dachwald, B. +5 more
core +1 more source