Results 31 to 40 of about 84,681 (280)
Hot flow anomaly formation by magnetic deflection
Geophysical Research Letters, 1990 Hot Flow Anomalies (HFAs) are localized plasma structures observed in the solar wind and magnetosheath near the Earth's quasi‐parallel bow shock. We present 1‐D hybrid computer simulations illustrating a formation mechanism for HFAs in which the single, hot, ion population results from a spatial separation of two counterstreaming ion beams.
T. G. Onsager, M. F. Thomsen, D. Winske
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Undulated Shock Surface Formed After a Shock–Discontinuity Interaction
Geophysical Research Letters, 2023 Shock ripples and shock–discontinuity interactions (SDIs) have long been proposed to explain the frequent occurrence of high‐speed jets (HSJs) in the magnetosheath; however, there is no direct observational evidence for either of them occurring near a ...
Yufei Zhou, Chao Shen, Yong Ji
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Formation of hot flow anomalies and solitary shocks [PDF]
Journal of Geophysical Research: Space Physics, 2007 Interaction of a tangential discontinuity (TD) with the bow shock is investigated by using electromagnetic, global hybrid simulations in which ions are treated kinetically via particle‐in‐cell methods and electrons form a massless fluid. On the basis of previous studies, it was expected that the interaction would result in the formation of a hot flow ...
N. Omidi, D. G. Sibeck
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Hot deformation behavior and flow-stress anomaly of 5Cr9Si3 valve steel at elevated temperatures
工程科学学报, 2015 The hot deformation behavior of 5Cr9Si3 valve steel was investigated by hot working simulation test at different hot working parameters. When the deformation temperature increases from 850 to 900℃ or from 1000 to 1100℃, the peak stress decreases; but ...
WU Yun-sheng +4 more
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Numerical Modeling of Hydrothermal System Circulation Beneath Asal Rift, Republic of Djibouti
Energies, 2022 Asal rift is an aerial rift segment resulting from the westward propagation of the Aden ridge into the Afar Depression. Geothermal manifestations such as hot springs and fumaroles, fault creep, conductivity anomaly, and high geothermal gradient were ...
Abdek Hassan Aden +2 more
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地质科技通报, 2021 The prediction of the geothermal field is an important prerequisite for the evaluation of geothermal resources. Much attention has been paid to the research on coupled temperature field of percolation-heat transfer in deep fractured rock mass. The Zhuolu
Jinlong Chen +4 more
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Thermally induced convective circulation and precipitation over an isolated volcano [PDF]
, 2016 Intense rainfall over active volcanoes is known to trigger dangerous volcanic hazards, from remobilizing loose volcanic surface material into lahars or mudflows to initiating explosive activity including pyroclastic flows at certain dome-forming ...
Matthews, Adrian +2 more
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Properties and the origin of Almost Monoenergetic Ion (AMI) beams observed near the Earth's bow shock [PDF]
Annales Geophysicae, 2011 Beams of Almost Monoenergetic Ions (AMI) in the energy range from 20 to 800 keV were discovered in the DOK-2 experiment (Interball project) in the magnetosheath and upstream of the Earth's bow shock.
V. N. Lutsenko, E. A. Gavrilova
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3D seismic imaging of the Nesjavellir geothermal field, SW-Iceland
Frontiers in Earth Science, 2022 We present a detailed seismic imaging of the harnessed Nesjavellir geothermal area, SW-Iceland, which is one of several geothermal fields on the flanks of the Hengill volcano. We map the vP, vS, and vPvS ratio using seismic data recorded in 2016–2020 and
Ortensia Amoroso +9 more
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Morphology and tectonics of the Mid-Atlantic Ridge, 7°–12°S
, 2003 We present swath bathymetric, gravity, and magnetic data from the Mid-Atlantic Ridge between the Ascension and the Bode Verde fracture zones, where significant ridge–hot spot interaction has been inferred.
Bijwaard +56 more
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