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The night sky brightness measured from satellites Kosmos 51 and 213

Symposium - International Astronomical Union, 1970
(1)The minimum measured brightness of the night sky (in the visual region) is about 100 stars of the 10th magnitude per square degree near the galactic poles.(2)The ratio of fluxes in the ultraviolet (2300–3000 Å) and visual regions is approximately in agreement with expected theoretical data based on the models of stellar atmospheres for spectral ...
N. A. Dimov   +2 more
openaire   +1 more source

Global simulation of microwave brightness temperature based on satellite observation

SPIE Proceedings, 2008
Global brightness temperature simulations were performed at 0.25 degree resolution both including the atmospheric effect and pixel heterogeneity in wide wave band. For surfaces such as snow, deserts, and vegetation, volumetric scattering was calculated using a two-stream radiative transfer approximation.
Xiuli Fu, Ying Guo, Lingmei Jiang
openaire   +1 more source

Brightness Preserving Satellite Image Contrast Enhancement using Bacterial Foraging Algorithm

Proceedings of the 9th International Conference on Signal Processing Systems, 2017
A novel technique is presented for satellite image contrast enhancement using Bacterial Foraging Optimization Algorithm (BFOA) while preserving the brightness of the image. The classification of the image is done on the basis of its exposure, i.e., underexposed or overexposed.
Abhinav Gupta   +3 more
openaire   +1 more source

Combining the satellite imagery with bright sunshine hours: A review

Journal of Renewable and Sustainable Energy, 2013
Present article is a review of recent researches on linking the satellite image data to surface measured bright sunshine hours. It first gives some basics on estimation procedures of the daily global solar irradiation on horizontal surface with the daily bright sunshine hours. Second, a satellite based model is presented briefly.
B. G. Akinoglu, S. Ener Rusen
openaire   +1 more source

Control of satellite cell function in muscle regeneration and its disruption in ageing

Nature Reviews Molecular Cell Biology, 2021
Pedro Sousa-Victor   +2 more
exaly  

Satellite-Borne High-Brightness Source of Entangled Photons

Conference on Lasers and Electro-Optics, 2019
Yuan Cao   +7 more
openaire   +1 more source

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