Results 61 to 70 of about 2,425,563 (382)
Refining the ERA5-based global model for vertical adjustment of zenith tropospheric delay
Satellite Navigation, 2022 Tropospheric delay is an important factor affecting high precision Global Navigation Satellite System (GNSS) positioning and also the basic data for GNSS atmospheric research.
Ge Zhu +5 more
doaj +1 more source
Dynamical friction on satellite galaxies
, 2005 For a rigid model satellite, Chandrasekhar's dynamical friction formula describes the orbital evolution quite accurately, when the Coulomb logarithm is chosen appropriately.
Fujii, Michiko +2 more
core +1 more source
On the Orbits of Infalling Satellite Halos [PDF]
, 2010 The orbital properties of infalling satellite halos set the initial conditions which control the subsequent evolution of subhalos and the galaxies that they host, with implications for mass stripping, star formation quenching, and merging.
Abadi +71 more
core +1 more source
Satellite Navigation, 2021 Ionospheric irregularities can adversely affect the performance of Global Navigation Satellite System (GNSS). However, this opens the possibility of using GNSS as an effective ionospheric remote sensing tool.
YuXiang Peng +4 more
doaj +1 more source
The Global Land Surface Satellite (GLASS) Product Suite
Bulletin of The American Meteorological Society - (BAMS), 2020 The Global Land Surface Satellite (GLASS) product suite currently contains 12 products, including leaf area index, fraction of absorbed photosynthetically active radiation, fraction of green vegetation coverage, gross primary production, broadband albedo,
S. Liang +10 more
semanticscholar +1 more source
Satellite-Relayed Intercontinental Quantum Network. [PDF]
Physical Review Letters, 2018 We perform decoy-state quantum key distribution between a low-Earth-orbit satellite and multiple ground stations located in Xinglong, Nanshan, and Graz, which establish satellite-to-ground secure keys with ∼kHz rate per passage of the satellite Micius ...
Shengkai Liao +35 more
semanticscholar +1 more source
Satellite gradiometry using a satellite pair [PDF]
Journal of Geodesy, 2005 The GRACE mission has substantiated the low–low satellite-to-satellite tracking (LL-SST) concept. The LL-SST configuration can be combined with the previously realized high–low SST concept in the CHAMP mission to provide a much higher accuracy. The line of sight (LOS) acceleration difference between the GRACE satellite pair, the simplest form of the ...
Keller, W., Sharifi, M.
openaire +4 more sources
Population Ecology, EarlyView.We investigate the seasonal dynamics of two freshwater snails, Biomphalaria straminea and Melanoides tuberculata, in artificial reservoirs of the Brazilian semiarid region. Despite regulated hydrology, B. straminea exhibited strong seasonal fluctuations associated with dry periods, while M. tuberculata maintained stable populations throughout the year,
Lucas Henrique Sousa da Silva +6 more
wiley +1 more source
Nature, 1877 IT is not necessary to have an enormous telescope in order to see the outer satellite of Mars. I had a very satisfactory view of it on September 15 at 9h. 20m. with a nine-inch reflector, and only lost it in the planet's glare at about 10h. 50m. I would have written to you on the subject earlier, but was not aware that it was considered so extremely ...
+10 more sources
Inflammatory myofibroblastic tumor of jejunum in a child
Journal of Pediatric Surgery Case Reports, 2019 Myofibroblastic tumor is one of the rare solid tumors occurring in children. It is mesenchymal in origin composed of myofibroblastic spindle cells admixed with lymphocytes, plasma cells, and eosinophills.
Naeem Liaqat +5 more
doaj +1 more source