Results 131 to 140 of about 373,009 (204)
Modeling ALS in a dish: how organoids are transforming research. [PDF]
Front Med (Lausanne)Galluzzi G +3 more
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Localization and Expression of Aquaporin 0 (AQP0/MIP) in the Tissues of the Spiny Dogfish (<i>Squalus acanthias</i>). [PDF]
Int J Mol SciCutler CP, Curry CR, Hall FS, Ojo T.
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A Tutorial Review on Sporadic E Layers
2011The sporadic E layers (Es) form in the dynamo region of the ionosphere when metallic ions of meteoric origin are converged vertically in a wind shear. This paper provides a comprehensive update on sporadic E, a topic that has been studied for many years.
C. Haldoupis
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Rocket Observations of Sporadic‐E Layers
Radio Science, 1972The characteristics of midlatitude sporadic‐E layers are observed using rocket payloads incorporating a probe and a propagation experiment.Layers below 120 km show evidence of preferred altitudes. The slopes of layers are within 1° of horizontal. The horizontal dimensions are deduced to be several hundred kilometers.
L. G. Smith, E. A. Mechtly
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Sudden neutral sodium layers: a strong link to sporadic E layers
Journal of Atmospheric and Terrestrial Physics, 1988Abstract A sodium LIDAR instrument located at Andenes, Norway (69°N; 16°E) observed several sudden developments of narrow sodium layers in the 90–100 km altitude region. These layers grow with typical time constants of 5 min and have a width of 1 km in altitude. We present the temporal and spatial properties for a number of these events.
U. Von Zahn, T.L. Hansen
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E‐Field Effects on Day‐To‐Day Variations of Geomagnetic Mid‐Latitude Sporadic E Layers
Journal of Geophysical Research: Space Physics, 2023This study investigates the effects of the electric fields (E‐fields) on day‐to‐day variations in geomagnetic mid‐latitude sporadic E layers (EsLs) using a numerical ionospheric model.
Satoshi Andoh, A. Saito, H. Shinagawa
semanticscholar +1 more source
Numerical Investigation on the Height and Intensity Variations of Sporadic E Layers at Mid‐Latitude
Journal of Geophysical Research: Space Physics, 2023In previous studies, various physical parameters, such as vertical wind shear null, vertical ion velocity null (IVN), and maximum gradient of vertical ion velocity, have been used as an indicator of Es layer height in light of the wind shear theory ...
Lihui Qiu +4 more
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Sporadic E-layers as current generators
Radiophysics and Quantum Electronics, 1996Quasi two- and three-dimensional models of dense night-time sporadic E-layers of the earth's ionosphere as current generators are developed. The layers are assumed to be situated in an ambient plasma of about fifty times lower density and their neutral particles possess a rather high bulk velocity relative to the ions.
Liperovsky, Viktor A. +1 more
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Sporadic-E layers and unstable wind shears
Journal of Atmospheric and Terrestrial Physics, 1980Electron density profiles of sporadic-E layers have been observed with good height resolution using rocket-borne probes. These generally show a simple shape consistent with the effect of a linear wind shear acting on metallic ions. Occasionally more complex shapes have been recorded, including double peaks and, on one occasion, a nearly rectangular ...
L.G Smith, K.L Miller
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Fine structure in midlatitude sporadic E layers
Journal of Atmospheric and Solar-Terrestrial Physics, 2013Abstract Fine structure in midlatitude sporadic E layer patches or “clouds” is apparent in incoherent scatter observations from the Arecibo Radio Telescope. The fine structure is wavelike with predominant horizontal wavelengths as large as about 2–3 km. We attribute the structure to a drift wave instability operating in the collisional regime.
D.L. Hysell +6 more
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