Results 11 to 20 of about 3,823,424 (306)
Centrifuges for microgravity simulation. The Reduced Gravity Paradigm. [PDF]
Frontiers in Astronomy and Space Sciences, 2016 Due to the cumbersome nature of performing real microgravity - spaceflight research scientists have been searching for alternatives to perform simulated microgravity or partial gravity experiments on Earth.
Jack J.W.A. van Loon +1 more
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Frontiers in Physiology, 2022 Polyhydramnios is a condition related to an excessive accumulation of amniotic fluid in the third trimester of pregnancy and it can be acute and chronic depending on the duration.
Slobodan Sekulić +11 more
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-Omics studies of plant biology in spaceflight: A critical review of recent experiments
Frontiers in Astronomy and Space Sciences, 2022 Researchers have been studying transcriptomic and proteomic responses of plants to ranges of reduced gravitational conditions. These include blue and red light in microgravity, circadian rhythms in microgravity, microgravity in different ecotypes ...
Ariel M. Hughes, John Z. Kiss
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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
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Demonstrating reduced gravity [PDF]
The Physics Teacher, 1996 A miniature drop tower, Reduced-Gravity Demonstrator is developed to illustrate the effects of gravity on a variety of phenomena including the way fluids flow, flames burn, and mechanical systems (such as pendulum) behave. A schematic and description of the demonstrator and payloads are given, followed by suggestions for how one can build his (her) own.
Howard Pearlman +5 more
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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
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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
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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.
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Acoustic Manipulation of Droplets under Reduced Gravity. [PDF]
Sci Rep, 2019 AbstractContactless manipulation of matter is essential for studying physical phenomena. Acoustic manipulation of liquid samples using ultrasonic phased arrays provides a novel and attractive solution for mid-air manipulation, such as levitation, transportation, coalescence, mixing, separation, evaporation, and extraction, with a simple and single ...
Hasegawa K, Watanabe A, Abe Y.
europepmc +4 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
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