Results 11 to 20 of about 17,592,565 (303)
Massive quantum systems as interfaces of quantum mechanics and gravity [PDF]
Reviews of Modern Physics, 2023 The traditional view from particle physics is that quantum gravity effects should only become detectable at extremely high energies and small length scales.
S. Bose +9 more
semanticscholar +1 more source
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
doaj +1 more source
Cat-Like Jumping and Landing of Legged Robots in Low Gravity Using Deep Reinforcement Learning [PDF]
IEEE Transactions on robotics, 2021 In this article, we show that learned policies can be applied to solve legged locomotion control tasks with extensive flight phases, such as those encountered in space exploration.
N. Rudin +3 more
semanticscholar +1 more source
地震科学进展, 2023 The integrated and array observation of the high-precision absolute gravity and gravity gradient can effectively improve the identification accuracy of gravity field sources at different depths.
Qiong Wu, Jiansheng Xu
doaj +1 more source
Putting gravity in control [PDF]
Journal of Physics: Conference Series, 2017 The aim of the present manuscript is to present a novel proposal in Geometric Control Theory inspired in the principles of General Relativity and energy-shaping control.
Lopez-Monsalvo, C S +3 more
openaire +2 more sources
Improved GRAVITY astrometric accuracy from modeling optical aberrations [PDF]
Astronomy & Astrophysics, 2021 The GRAVITY instrument on the ESO VLTI pioneers the field of high-precision near-infrared interferometry by providing astrometry at the 10−100 μas level. Measurements at this high precision crucially depend on the control of systematic effects.
G. Collaboration +62 more
semanticscholar +1 more source
Sensors, 2023 It is acknowledged that a classical definition of the geoid-to-quasigeoid separation as a function of the simple planar Bouguer gravity anomaly is compatible with Helmert’s definition of orthometric heights.
Robert Tenzer, Albertini Nsiah Ababio
doaj +1 more source
Reference frames and reference networks
Geodesy and Cartography, 2015 The summary of research activities concerning reference frames and reference networks performed in Poland in a period of 2011-2014 is presented. It contains the results of research on implementation of IUGG2011 and IAU2012 resolutions on reference ...
Bosy Jaroslaw, Krynski Jan
doaj +1 more source
Gravity is controlled by the cosmological constant [PDF]
Physical Review D, 2005 We discuss a Randall-Sundrum-type two D-braneworld model in which D-branes possess different values of the tensions from those of the charges, and derive an effective gravitational equation on the branes. As a consequence, the Einstein-Maxwell theory is realized together with the non-zero cosmological constant.
Yukinori Iwashita +3 more
openaire +2 more sources
Research on Target Center-of-gravity Position for Active Center-of-gravity Control System
Hangkong gongcheng jinzhan, 2021 Aiming at the problem of determination of the target center-of-gravity(CG)in active CG control system design,a new design method of target CG is proposed,for the guidance of active CG control system design.
YANG Jun +3 more
doaj +1 more source