Results 31 to 40 of about 4,918 (242)

Mass Transfer Theory Based Analysis of Influencing Factors on Component Gradient of Near-surface Atmosphere on Venus

open access: yesThe Astrophysical Journal, 2023
The atmosphere of Venus differs completely from that of Earth despite the planets’ similarity in size and mass. At Venus's surface, the atmosphere is hot and dense, with a temperature of approximately 735 K and a pressure of approximately 92 bar.
Wen Gao   +6 more
doaj   +1 more source

Absorption of Sunlight in the Atmosphere of Venus [PDF]

open access: yesScience, 1979
In this report the fluxes measured by the solar flux radiometer (LSFR) of the Pioneer Venus large probe are compared with calculations for model atmospheres. If the large particles of the middle and lower clouds are assumed to be sulfur, strong, short-wavelength absorption results in a net flux profile significantly different from the LSFR
M G, Tomasko, L R, Doose, P H, Smith
openaire   +2 more sources

A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates

open access: yesGeophysical Monograph Series, Page 47-54., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky   +2 more
wiley  

+1 more source

Asymptotic Solutions for Equatorial Waves on Venus

open access: yesAtmosphere, 2023
The atmosphere of Venus exhibits equatorial planetary-scale waves that are suspected to play an important role in its complex atmospheric circulation.
Javier Peralta
doaj   +1 more source

Oscillation of Venus' upper atmosphere

open access: yesGeophysical Research Letters, 2007
Little is known about the variability of Venus' upper atmosphere. We report discovery of a large (∼ ±30–50%) 9‐day period density oscillation, derived from radar tracking of the Magellan spacecraft from 15 Sept 92 – 24 May 93. The densities correspond to 164–184 km altitude, 11°N latitude, and cover all local times.
J. M. Forbes, A. Konopliv
openaire   +1 more source

Aeronomy of the Venus Upper Atmosphere [PDF]

open access: yesSpace Science Reviews, 2017
We present aeronomical observations collected using remote sensing instruments on board Venus Express, complemented with ground-based observations and numerical modeling. They are mostly based on VIRTIS and SPICAV measurements of airglow obtained in the nadir mode and at the limb above 90 km.
Gérard, J.-C.   +5 more
openaire   +4 more sources

Source of phosphine on Venus—An unsolved problem

open access: yesFrontiers in Astronomy and Space Sciences
The tentative detection of ppb levels of phosphine (PH3) in the clouds of Venus was extremely surprising, as this reduced gas was not expected to be a component of Venus’ oxidized atmosphere.
William Bains   +10 more
doaj   +1 more source

Earth's Atmospheric Electricity Parameter Response During Venus Transit

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2015
Venus transited across the Sun on 06 June 2012, introducing significant contribution to the tidal characteristics of the solar atmosphere. _ atmosphere was perturbed due to an anomalous Coronal Mass Ejection (CME) and γ-radiationγ-radiation influenced by
Syam Sundar De   +4 more
doaj   +1 more source

Archeo‐Inspiration from the Cultural History of Glass: Historic Accounts, Anecdotes and Hard Facts as Challenges to Modern Material Science

open access: yesAdvanced Materials, EarlyView.
Glass, historically valued for its purity and durability, has long inspired artists and societies. This article introduces the concept of “Archeo‐Inspiration”, drawing on cultural and historical contexts of glass to guide future material innovations.
Eva von Contzen   +3 more
wiley   +1 more source

Programmable Dimensional Lithography with Digital Micromirror Devices for Multifunctional Microarchitectures

open access: yesAdvanced Materials Technologies, EarlyView.
This review explores recent advances in digital micromirror device (DMD)‐based lithography, focusing on its programmable light modulation, multi‐material compatibility, and dimensional patterning strategies. It highlights innovations from optical system design to materials integration and multifunctional applications, positioning DMD lithography as a ...
Yubin Lee   +5 more
wiley   +1 more source

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