Results 71 to 80 of about 1,101,085 (183)

Parameters for Attenuation in the Atmospheric Windows for Fifteen Wavelengths

open access: yesApplied Optics, 1964
A model of a Clear Standard Atmosphere for determining attenuation in the visible and infrared windows is useful for the interpretation of the optical properties of the atmosphere. It can be used, like the U.S. Standard Atmosphere, as an information source for many technical requirements. First, a Clear Standard Atmosphere is defined.
openaire   +2 more sources

A two-dimensional thin film structure with spectral selective emission capability suitable for high-temperature environments

open access: yesCase Studies in Thermal Engineering
Spectral selective emission materials, characterized by their high emission efficiency within specific wavelength ranges, play a crucial role in various fields such as infrared stealth and radiative cooling. In this study, leveraging the tunneling effect
Xinkai Li   +3 more
doaj   +1 more source

Chromium Isotopes: A Window into Atmospheric Oxygenation

open access: yes
Chromium (Cr) isotopes are pivotal proxies for understanding Earth’s atmospheric oxygenation history. This review highlights δ53Cr signatures as tools for reconstructing redox dynamics during events like the Great Oxidation Event (GOE) and the Neoproterozoic Oxygenation Event (NOE).
openaire   +1 more source

National Atmospheric Deposition Program 2011 Annual summary [PDF]

open access: yes, 2012
is peer reviewedSubmitted by Susan Braxton (braxton@illinois.edu) on 2013-01-29T22:55:31Z No. of bitstreams: 1 2011as.pdf: 4443124 bytes, checksum: 1e2ff568a6e350fe41bba46c81de3531 (MD5)Made available in DSpace on 2013-01-29T22:55:31Z (GMT). No.
National Atmospheric Deposition Program
core  

Transcatheter closure of symptomatic aortopulmonary window in an infant [PDF]

open access: yes, 2008
An aortopulmonary window is a rare congenital cardiac defect. In the majority of symptomatic neonates and infants, primary surgical repair is the treatment of choice.
Brockmeier, Konrad   +4 more
core  

Plant Cuticles Exhibit Significant Mid-Infrared Emissivity in the Atmospheric Windows

open access: yesInternational Journal of Molecular Sciences
As sessile organisms, plants have developed strategies to cope with exposure to high radiation. The plant cuticle is located at the interface between the plant and the surrounding environment, thus acting as a first barrier that protects plants against environmental conditions, including solar radiation.
Antonio Heredia   +3 more
openaire   +4 more sources

Non-volatile tunable multispectral compatible infrared camouflage based on the infrared radiation characteristics of Rosaceae plants

open access: yesOpto-Electronic Advances
Most multispectral compatible infrared camouflage devices primarily focus on achieving low emissivity but neglect environmental emissivity matching when environmental emissivity exceeds that of the devices, this creates a "low-emissivity exposure" risk ...
Xin Li   +11 more
doaj   +1 more source

Multiscale interaction underlying 2022 concurrent extreme precipitation in Pakistan and heatwave in Yangtze River Valley

open access: yesnpj Climate and Atmospheric Science
Unprecedentedly extreme precipitation occurred in Pakistan (PAK), and mega heat waves persisted along the Yangtze River Valley (YRV) from July to August 2022.
Qianrong Ma   +7 more
doaj   +1 more source

Numerical Thermo-Structural Simulations for the Design of the Havar Beam Window of a Beryllium Target for Neutron Beam Production

open access: yesEngineering Proceedings
The present work was carried out as part of the PRIN 2022JCS2CN project “CoolGal”, which aims to design and manufacture a beryllium target cooled by Galinstan (a liquid metal alloy at room temperature) for the production of neutrons using energetic ...
Roberta Dattilo
doaj   +1 more source

Morphology‐Controlled Silica Nanoparticle Coatings for Transparent Radiative Cooling

open access: yesAdvanced Materials Interfaces
In this study, transparent passive radiative cooling coatings are introduced by immobilizing solid and hollow silica (SiO2) spheres on glass substrates.
Jefferson A. S. Lam   +8 more
doaj   +1 more source

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