Results 231 to 240 of about 17,592,565 (303)
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IEEE transactions on industrial electronics (1982. Print), 2021
For robot manipulators subject to unmeasurable/uncertain plant parameters, this article designs a new adaptive motion controller, which ensures positioning errors to converge to zero and provides accurate gravity compensation.
Tong Yang +4 more
semanticscholar +1 more source
For robot manipulators subject to unmeasurable/uncertain plant parameters, this article designs a new adaptive motion controller, which ensures positioning errors to converge to zero and provides accurate gravity compensation.
Tong Yang +4 more
semanticscholar +1 more source
Effects of partial fuel pump failure on center of gravity control for high-speed aircraft
AUS, 2016Aircraft center of gravity control is an important technology to gain potential performance benefits. In-flight center of gravity control is usually based on a fuel transfer system which enables fuel to be transferred among fuselage fuel tanks and then ...
Haiquan Li, J. Zhang, Jianing Yan
semanticscholar +1 more source
Polarization- and Frequency-Reconfigurable Patch Antenna Using Gravity-Controlled Liquid Metal
IEEE Transactions on Circuits and Systems - II - Express Briefs, 2022This letter presents a reconfigurable antenna that uses gravity to control the self-circulation of liquid metal (LM), thereby realizing an adaptive reconstruction method. Then the polydimethylsiloxane (PDMS) structure with a square ring channel is loaded
Lei Li +3 more
semanticscholar +1 more source
Gravity-controlled gliding velocity in Loxodes
European Journal of Protistology, 1992The locomotion of Loxodes as controlled by the natural gravity vector was investigated employing a mass-cell approach. Samples of cells were incubated for 4 hours in a 1.6 mm deep well (41 × 85 mm) filled with defined experimental solution. Their gliding locomotion on surfaces inclined between 0° and 90° was recorded by videocamera.
R, Bräucker +3 more
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$��$ gravity: Steepness control
2013We investigate a simple generalization of the metric exponential $f(R)$ gravity theory that is cosmologically viable and compatible with solar system tests of gravity. We show that, as compared to other viable $f(R)$ theories, its steep dependence on the Ricci scalar $R$ facilitates agreement with structure constraints, opening the possibility of $f(R)$
O'Dwyer, M., Joras, S. E., Waga, I.
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Terraforming of Planets Through Gravity Control - Production of Gravity
SSRN Electronic Journal, 2021This paper presents the cases of terraforming by gravity control and the case of production gravity. Using the prior work of the “Gravity Control” are determined the cases of terraforming a planet. Moreover, is presented the case of production gravity.
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Hyopthetical Gravity Control and Possible Influence on Space Propulsion
, 2004In nearly all concepts invoked or proposed to change or shield gravity it is intuitively assumed that manipulation of gravity automatically leads to a breakthrough for propulsion.
M. Tajmar, O. Bertolami
semanticscholar +1 more source
Water Research, 2019
Ferric salt dosing is widely used to mitigate sulfide and methane emissions from sewers. In gravity sewers with sediments, responses of sulfate-reducing bacteria (SRB) and methanogenic archaea (MA) residing in different zones to Fe3+ dosing strategies ...
Juanjuan Cao +4 more
semanticscholar +1 more source
Ferric salt dosing is widely used to mitigate sulfide and methane emissions from sewers. In gravity sewers with sediments, responses of sulfate-reducing bacteria (SRB) and methanogenic archaea (MA) residing in different zones to Fe3+ dosing strategies ...
Juanjuan Cao +4 more
semanticscholar +1 more source
IEEE transactions on industrial electronics (1982. Print), 2018
This paper presents a position control scheme for flexible joint robot based on online gravity compensation (OGC). After concluding some drawbacks of OGC-based PD control law, a nonlinear state feedback controller is designed, where analysis for ...
Lei Sun, Wei Yin, Meng Wang, Jingtai Liu
semanticscholar +1 more source
This paper presents a position control scheme for flexible joint robot based on online gravity compensation (OGC). After concluding some drawbacks of OGC-based PD control law, a nonlinear state feedback controller is designed, where analysis for ...
Lei Sun, Wei Yin, Meng Wang, Jingtai Liu
semanticscholar +1 more source
2012
This paper presents the concept and a prototype of "Gravity Controls". "Gravity Controls" makes standard Graphical User Interface (GUI) controls "magnetic" to allow overcoming impacts of motor problems (e.g. tremor of users leading to unsmooth movements and instable positioning of the cursor (e.g. for clicking or mouse over events).
Peter Heumader +2 more
openaire +1 more source
This paper presents the concept and a prototype of "Gravity Controls". "Gravity Controls" makes standard Graphical User Interface (GUI) controls "magnetic" to allow overcoming impacts of motor problems (e.g. tremor of users leading to unsmooth movements and instable positioning of the cursor (e.g. for clicking or mouse over events).
Peter Heumader +2 more
openaire +1 more source