Results 41 to 50 of about 3,613 (269)
Long-Term Continuous Double Station Observation of Faint Meteor Showers
Sensors, 2016 Meteor detection and analysis is an essential topic in the field of astronomy. In this paper, a high-sensitivity and high-time-resolution imaging device for the detection of faint meteoric events is presented. The instrument is based on a fast CCD camera
Stanislav Vítek +3 more
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, 1963 Scale model meteoroid streams with data on particle density, size, velocity, and orbital ...
Kraus, G. L.
core
Energy Science &Engineering, EarlyView.Formed ~1.4 Ga, the carbonate reservoir of the Jixian System is a key geothermal reservoir in northern China. Differential basin–mountain evolution since the Cenozoic led to distinct reservoir‐forming histories; consequently, this same reservoir shows marked productivity contrasts between intramontane basins and the large rift Bohai Bay Basin ...
Chuanqing Zhu +6 more
wiley +1 more source
A Search for Meteoroid Streams and Their Sources in the Near-Sun Zodiacal Dust Cloud
The Astrophysical JournalThe structure and dynamics of the zodiacal cloud close to the Sun may be significantly influenced by the interaction between a background quasihomogeneous zodiacal cloud and discrete meteoroid streams associated with small bodies like comets and ...
David M. Malaspina +4 more
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Journal of Clinical Ultrasound, EarlyView.Point‐of‐care ultrasound performed at the bedside identified hepatic portal venous gas in a critically ill neonate, prompting urgent evaluation and revealing intestinal perforation due to necrotizing enterocolitis. This case highlights the potential of POCUS to accelerate diagnosis when clinical signs are subtle or nonspecific.
Tiago Henrique de Souza +4 more
wiley +1 more source
Meteoroid Stream Identification with HDBSCAN Unsupervised Clustering Algorithm
The Astronomical JournalAccurate identification of meteoroid streams is central to understanding their origins and evolution. However, overlapping clusters and background noise hinder classification, an issue amplified for missions such as the European Space Agency’s Lunar ...
Eloy Peña-Asensio, Fabio Ferrari
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Dust dynamic pressure and magnetopause displacement: reasons for non-detection [PDF]
Annales Geophysicae, 2013 In a recent paper, Treumann and Baumjohann (2011) propose that the contribution of dust particles to the solar wind dynamic pressure can cause large compressions of the Earth's magnetopause and suggest that this occurs when Earth encounters ...
I. Mann, M. Hamrin
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Journal of Quaternary Science, EarlyView.ABSTRACT The Cadí Massif (42°17′09″ N, 1°38′11″ E; 2649 m a.s.l.) in the southeastern Pyrenees preserves clear evidence of Late Pleistocene glaciation, although previous research has focused almost exclusively on its northern slope. By contrast, the southern slope has remained largely unexplored.
M. Oliva +5 more
wiley +1 more source
地球与行星物理论评Meteoroids entering the Earth's atmosphere lose most of their mass during atmospheric passage and considerably disturb the background ionosphere. To elucidate better the effects of meteoroids on the near-Earth space environment, it is important to ...
Yi Li +13 more
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A time-resolved model of the mesospheric Na layer: constraints on the meteor input function [PDF]
Atmospheric Chemistry and Physics, 2004 A time-resolved model of the Na layer in the mesosphere/lower thermosphere region is described, where the continuity equations for the major sodium species Na, Na+ and NaHCO3 are solved explicity, and the other short-lived species are treated in steady ...
J. M. C. Plane
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