Results 71 to 80 of about 874,490 (352)

Study of the Effect of Martian Dust Storms on Ionospheric Electron Density Based on Physical-grid Deep Neural Learning Technology

open access: yesThe Astrophysical Journal, 2023
The behavior of the Martian ionosphere during global dust storms has always been a popular topic. Based on many Mars Atmosphere and Volatile Evolution observations, a Martian ionospheric electron density model is constructed herein using a physical-grid ...
ShengBin Zhong   +3 more
doaj   +1 more source

A CHEMICAL KINETICS NETWORK FOR LIGHTNING AND LIFE IN PLANETARY ATMOSPHERES [PDF]

open access: yes, 2015
There are many open questions about prebiotic chemistry in both planetary and exoplanetary environments. The increasing number of known exoplanets and other ultra-cool, substellar objects has propelled the desire to detect life and prebiotic chemistry ...
P. Rimmer, Christiane Helling
semanticscholar   +1 more source

Ionic Liquid‐Based Reversible Metal Electrodeposition for Adaptive Radiative Thermoregulation Under Extreme Environments

open access: yesAdvanced Functional Materials, EarlyView.
A wideband tunable electrochromic device with dynamic thermal emissivity control is demonstrated. The system enables adaptive heat regulation via electrochemically modulated silver deposition, achieving efficient cooling and heating states. The flexible design ensures mechanical robustness under bending conditions, making it promising for portable and ...
Jiawei Liang   +10 more
wiley   +1 more source

Double Trouble: Two Transits of the Super-Earth GJ 1132 b Observed with JWST NIRSpec G395H

open access: yesThe Astrophysical Journal Letters, 2023
The search for rocky planet atmospheres with JWST has focused on planets transiting M dwarfs. Such planets have favorable planet-to-star size ratios, enhancing the amplitude of atmospheric features.
E. M. May   +21 more
doaj   +1 more source

A Simple Model for Radiative and Convective Fluxes in Planetary Atmospheres [PDF]

open access: yes, 2018
One-dimensional (vertical) models of planetary atmospheres typically balance the net solar and internal energy fluxes against the net thermal radiative and convective heat fluxes to determine an equilibrium thermal structure. Thus,simple models of shortwave and long wave radiative transport can provide insight into key processes operating within ...
arxiv   +1 more source

Print‐and‐Plate Architected Electrodes for Electrochemical Transformations Under Flow

open access: yesAdvanced Functional Materials, EarlyView.
Typical flow cell electrodes are composed of stochastic porous carbon, limiting understanding of electrode structure‐performance relationships. This work describes an approach, termed “print‐and‐plate,” to prepare porous electrodes by direct ink writing followed by conformal metal coating.
Dylan M. Barber   +12 more
wiley   +1 more source

Pre-conditioned backward Monte Carlo solutions to radiative transport in planetary atmospheres - Fundamentals: Sampling of propagation directions in polarising media [PDF]

open access: yes, 2014
Context. The interpretation of polarised radiation emerging from a planetary atmosphere must rely on solutions to the vector Radiative Transport Equation (vRTE).
G. Muñoz, A., Mills, F.P
semanticscholar   +1 more source

Oxygen Doping Enables Tailored Built‐In Electric Fields in FeOCl/g‐C3N4 Heterojunctions for Enhanced Peroxymonosulfate Activation

open access: yesAdvanced Functional Materials, EarlyView.
Oxygen‐doping modulated g‐C3N4 support enables a strong built‐in electric field (BIEF) in FeOCl‐OCN.This enhanced BIEF induces the rearrangement of Fe(II)/Fe(III) in FeOCl, which subtly improves intermediates adsorption and also reduces the energy barrier of *O production, thereby achieving efficient PMS activation with 1O2 and Fe(IV)= O as the primary
Ying Zeng   +9 more
wiley   +1 more source

Detection and Localization of Stationary Waves on Venus Using a Self‐Supervised Anomaly Detection Model

open access: yesJournal of Geophysical Research: Machine Learning and Computation
The atmosphere of Venus features stationary waves of planetary scale, which are believed to be caused by wind flowing over elevated terrains. Detecting these waves can provide valuable insight into atmospheric dynamics.
Husnu Baris Baydargil   +3 more
doaj   +1 more source

Stellar activity and magnetic shielding [PDF]

open access: yesProceedings IAU Symposium 264, 385-394, 2010, 2010
Stellar activity has a particularly strong influence on planets at small orbital distances, such as close-in exoplanets. For such planets, we present two extreme cases of stellar variability, namely stellar coronal mass ejections and stellar wind, which both result in the planetary environment being variable on a timescale of billions of years.
arxiv   +1 more source

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