Results 21 to 30 of about 820,374 (307)
Drag-free and attitude control for the GOCE satellite [PDF]
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.
Aguirre-Martinez +13 more
core +1 more source
Modeling and stabilization of eccentric gravity machinery
In general, eccentric gravity machinery is a rotation mechanism with eccentric pendulum mechanism, which can be used to convert continuously kinetic energy generated by gravity energy to electric energy.
Wu-Sung Yao
doaj +1 more source
Adaptive sliding mode control with gravity compensation: Application to an upper-limb exoskeleton system [PDF]
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
doaj +1 more source
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
doaj +1 more source
Human manual control performance in hyper-gravity [PDF]
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 +4 more sources
A new PC control software for ZLS-Burris gravity meters
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
doaj +1 more source
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
doaj +1 more source
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
doaj
Postural adaptation to microgravity underlies fine motor impairment in astronauts’ speech
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
doaj +1 more source
All-propulsion design of the drag-free and attitude control of the European satellite GOCE
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.
Canuto +18 more
core +1 more source

