Results 41 to 50 of about 178,977,434 (287)
DronesIn the autonomous navigation of drones, improving positioning accuracy is of significant importance to obtain highly accurate information on flight velocity.
Lanjian Chen +3 more
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Applied Sciences, 2019 Flow velocity field measurement is important for analyzing flow characteristics of oil−water two-phase immiscible flow in vertical well. Digital particle image velocimetry (DPIV) is an effective velocity field measurement method that has overcome ...
Lianfu Han +3 more
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Radial Velocity Measurements on the Zodiacal Light Spectrum [PDF]
Nature, 1968 THERE has been speculation for some time about the possibility of detecting the motion of zodiacal dust particles by accurately measuring the wavelength position of a solar Fraunhofer absorption line scattered in the cloud. Ingham1 derived the Hβ absorption line profile that would result from solar radiation scattered by dust particles in circular ...
N. K. REAY, J. RING
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The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source
Artificial molecular machines and motors—Design and control of nanoscale motion
FEBS Letters, EarlyView.Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley +1 more source
The light ages: An investigation into the relationship between photography and the hegemony of light. [PDF]
, 2018 This study sets out to establish an hegemony of light and examine its relationship to the lens in photography. Through a series of sequenced photographs presented as an exhibition The Light Ages in May 2017.
Hall, Mark
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Upconversion Photonic Doppler Velocimetry Based on Stimulated Brillouin Scattering
PhotonicsOptical up-conversion photonic Doppler velocimetry (PDV) based on stimulated Brillouin Scattering (SBS) with an all-fiber link structure is proposed in this article. Because SBS limits the laser power transmitted by a fiber over long distances, the probe
Long Chen +11 more
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Dynamics of particles near the surface of a medium under ultra-strong shocks
Matter and Radiation at Extremes, 2021 Through nonequilibrium molecular dynamics simulations, we provide an atomic-scale picture of the dynamics of particles near the surface of a medium under ultra-strong shocks.
Zixiang Yan +7 more
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FEBS Letters, EarlyView.Transient oligomers formed by intrinsically disordered proteins may be ‘invisible’ to direct detection yet remain accessible to solution NMR through equilibrium‐exchange measurements and pressure‐jump experiments. Complementary methods report on mass, stoichiometry, selected distance distributions, morphology, and internal packing.
Martin D. Gelenter, Ad Bax
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Group velocity of the probe light in semiconductor–metal molecules [PDF]
, 2012 The group velocity of light is investigated in a hybrid nanostructure comprised of semiconductor quantum dot (SQD) and metal nanoparticle (MNP). In the presence of MNP, the hybrid absorption of the system can be eliminated and forms a broad transparency ...
HuiFang Zhang +5 more
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