Results 11 to 20 of about 9,774,707 (312)
Heart rate monitoring and control in altered gravity conditions
2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007 On the basis of indirect evidences it has been hypothesized that during space missions the almost complete absence of gravity might impair the baroreflex control of circulation. In the first part of this paper we report results obtained from a series of experiments carried out to directly verify this hypothesis during the 16-day STS 107 Shuttle flight.
Meriggi P +6 more
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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
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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
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Stereopsis Outweighs Gravity in the Control of the Eyes [PDF]
The Journal of Neuroscience, 2001 The eyes are controlled by multiple brain circuits, some phylogenetically old and some new, whose aims may conflict. Old otolith reflexes counterroll the eyes when the head tilts relative to gravity. Newer vergence mechanisms coordinate the eyes to aid stereoptic vision.
H, Misslisch, D, Tweed, B J, Hess
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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
Gravity modulates behaviour control strategy [PDF]
Experimental 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
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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
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Research progress and prospect of gravity erosion in loess region [PDF]
SHS Web of Conferences, 2023 Gravity erosion is one of the most important types of soil erosion in the loess region, and it is the focus and difficulty of the current erosion research in the loess region.
Gong Jiaguo +5 more
doaj +1 more source
(2+1) gravity for higher genus in the polygon model [PDF]
, 2004 We construct explicitly a (12g − 12)-dimensional space P of unconstrained and independent initial data for ’t Hooft’s polygon model of (2+1) gravity for vacuum spacetimes with compact genus-g spacelike slices, for any g ≥ 2.
Kádár, Zoltán +5 more
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Enhanced Simulation of Partial Gravity for Extravehicular Activity [PDF]
, 2013 Prior studies of human locomotion under simulated partial gravity have hypothesized that energy expenditure is increased in lunar gravity, as compared to that of Mars.
Klaus, David M +3 more
core +1 more source