Results 1 to 10 of about 17,592,446 (184)

Effects of Local Gravity Compensation on Motor Control During Altered Environmental Gravity [PDF]

open access: yesFrontiers in Neural Circuits, 2021
Our sensorimotor control is well adapted to normogravity environment encountered on Earth and any change in gravity significantly disturbs our movement.
Tjasa Kunavar   +10 more
doaj   +3 more sources

Gravity compensation and optimal control of actuated multibody system dynamics

open access: yesIET Control Theory & Applications, 2022
This work investigates the gravity compensation topic, from a control perspective. The gravity could be levelled by a compensating mechanical system or in the control law, such as proportional derivative (PD) plus gravity, sliding mode control, or ...
Saeed Rafee Nekoo   +2 more
doaj   +2 more sources

Research on the design and simulation of grid-connected system of vertical gravity energy storage [PDF]

open access: yesScientific Reports
Due to the characteristics of the body’s movement, the output power of the gravity energy storage system is unstable. When the system is connected to the grid, smooth control of the output power is required.
Yirun Ji   +6 more
doaj   +2 more sources

Human manual control performance in hyper-gravity [PDF]

open access: yesExperimental 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
openaire   +5 more sources

Research on reference frames and reference networks in Poland in 2019–2022

open access: yesAdvances in Geodesy and Geoinformation, 2023
The article presents the reviewed and summarised research activities of Polish research groups on reference frames and reference networks in a period of 2019–2022.
Jan Kryński, Tomasz Liwosz
doaj   +1 more source

A New Force Control Method by Combining Traditional PID Control with Radial Basis Function Neural Network for a Spacecraft Low-Gravity Simulation System

open access: yesAerospace, 2023
With the continuous development of the space industry, the demand for low-gravity simulation experiments on the ground for spacecraft is increasing, to overcome the gravity compensation of spacecraft on the ground tests.
Jian Cao   +4 more
doaj   +1 more source

Research on reference frames and reference networks in Poland in 2015–2018 [PDF]

open access: yesGeodesy and Cartography, 2019
Research activities of Polish research groups in a period of 2015–2019 on reference frames and reference networks are reviewed and summarised in this paper. The summary contains the results concerning the implementation of latest resolutions on reference
Jan Krynski   +2 more
doaj   +1 more source

A haptic illusion created by gravity

open access: yesiScience, 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
doaj   +1 more source

Research Progress in Surface and Marine Gravimetry [PDF]

open access: yesJournal 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
doaj   +1 more source

Gravity modulates behaviour control strategy [PDF]

open access: yesExperimental Brain Research, 2019
Human behaviour is a trade-off between exploitation of familiar resources and exploration of new ones. In a challenging environment-such as outer space-making the correct decision is vital. On Earth, gravity is always there, and is an important reference for behaviour. Thus, altered gravitational signals may affect behaviour control strategies.
Maria Gallagher   +2 more
openaire   +2 more sources

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