Results 21 to 30 of about 132,411 (300)
An Empirical and Subjective Model of Upper Extremity Fatigue Under Hypogravity
Frontiers in Physiology, 2022 In the context of extra-terrestrial missions, the effects of hypogravity (0 < G < 1) on the human body can reduce the well-being of the crew, cause musculoskeletal problems and affect their ability to perform tasks, especially during long-term ...
Tatiana Volkova +2 more
doaj +1 more source
Hypogravity modeling of upper extremities: an investigation of manual handling in the workplace
Frontiers in Physiology, 2023 Experiments on the lower limbs are the only approaches being used to study how hypogravity (HG) (0 < g < 1, e.g., Moon: 1/6 g, Mars: 3/8 g) affects human movement.
Tatiana Maillard
doaj +1 more source
Energies, 2021 To overcome the problem of abnormally large bubbles and the large reduction of heat flux under low gravity, the computational model of magnetic nanofluid (MNF) boiling flow was used to systematically study the thermodynamic characteristics of an MNF ...
Kaikai Guo, Fucheng Chang, Huixiong Li
doaj +1 more source
Reduced Hamiltonians for gravity [PDF]
Classical and Quantum Gravity, 1994 This paper is concerned with quantization of gravity. Earlier, the authors have developed a technique for finding canonical variables that can be applied, in particular, to systems with constraints. First, the constraints arising in general relativity from the Lagrangian formalism with the Hilbert Lagrangian are imposed, and then dynamical variables ...
Rubio, J. A., Woodard, R. P.
openaire +2 more sources
ASME 2009 Dynamic Systems and Control Conference, Volume 2, 2009 This paper presents a computer-simulation based feasibility study of a passive Reduced Gravity Simulator (RGS), which uses spring-based static gravity-balancing technology to simulate a reduced-gravity environment.
Ou Ma, Qi Lu, Jesse McAvoy
core +2 more sources
Gait transitions in simulated reduced gravity [PDF]
Journal of Applied Physiology, 2011 Gravity has a strong effect on gait and the speed of gait transitions. A gait has been defined as a pattern of locomotion that changes discontinuously at the transition to another gait. On Earth, during gradual speed changes, humans exhibit a sudden discontinuous switch from walking to running at a specific speed.
Ivanenko, YP +5 more
openaire +3 more sources
Quench cooling under reduced gravity [PDF]
Physical Review E, 2013 We report the quench cooling experiments performed with liquid O2 under different levels of gravity simulated with the magnetic gravity compensation. A copper disk is quenched from 270K to 90K. It is found that the cooling time in microgravity is very long in comparison with any other gravity level.
Chatain, D. +3 more
openaire +4 more sources
Isomonodromic quantization of dimensionally reduced gravity [PDF]
Nuclear Physics B, 1996 36 pages ...
Korotkin, D., Nicolai, H.
openaire +4 more sources
Comparison of Microgravity Analogs to Spaceflight in Studies of Plant Growth and Development
Frontiers in Plant Science, 2019 Life on Earth has evolved under the influence of gravity. This force has played an important role in shaping development and morphology from the molecular level to the whole organism. Although aquatic life experiences reduced gravity effects, land plants
John Z. Kiss +6 more
doaj +1 more source
Gravity currents in rotating, wedge-shaped, adverse channels [PDF]
, 2014 Results are presented from a series of parametric experimental and analytical studies of the behaviour of dense gravity currents along rotating, up-sloping, wedge-shaped channels.
Lundberg, P. +5 more
core +1 more source