Results 71 to 80 of about 1,149,119 (338)
VARIATIONS OF IONOSPHERIC PARAMETERS OVER ALMATY (KAZAKHSTAN) IN 1999–2013
Solar-Terrestrial Physics, 2019 The paper presents the results of a study of the behavior of ionospheric parameters of the total electron content, I(t), and electron density in the maximum F2 layer, Nm, over Almaty (Kazakhstan) [43.25° N; 76.92° E] in 1999–2013. The time interval under
Mukasheva S.N. +2 more
doaj +1 more source
Web Based Automated Total Electron Content Computation
2007 3rd International Conference on Recent Advances in Space Technologies, 2007 Total Electron Content (TEC), is widely used in monitoring ionospheric effects. TEC is expressed as the amount of free electrons within 1 m2 cross-sectional area of the region between ground and ionosphere. Although IRI and IGS analysis centers can generate and present TEC estimations, either the temporal resolution is low or estimations are based on ...
Ugurlu, Orhan +2 more
openaire +2 more sources
Sedimentological and scanning electron microscopic descriptions of Afowo oil sand deposits, Southwestern Nigeria. [PDF]
, 2017 Sedimentological and scanning electron microscopic analyses of some shallow reservoir tar sand samples in parts of Southwestern Nigeria were carried out with the aim of characterizing the reservoir properties in relation to bitumen saturation and ...
Akinmosin, Adewale, Melifonwu, Chioma V.
core +2 more sources
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Annals of Geophysics, 1994 Following an investigation on the calibration of Faraday Rotation measurements by the slab thickness method, several interesting results have been obtained concerning the limits of application of TEC data in f0F2 modelling at middle latitudes.
L. Cairolo, P. Spalla
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Development of Ionospheric Tomography Model Using GPS [PDF]
Journal of Astronomy and Space Sciences, 2006 We produced the electron density distribution in the ionosphere over South Korea using the data from nine permanent GPS (Global Positioning System) stations which have been operated by KASI (Korea Astronomy and Space Science Institute).
Byung-Kyu Choi +2 more
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MITIGATOR: GNSS-Based System for Remote Sensing of Ionospheric Absolute Total Electron Content [PDF]
, 2022 Yury Yasyukevich +6 more
openalex +1 more source
Optimizing a sustainable ultrasound assisted extraction method for the recovery of polyphenols from lemon by-products:comparison with hot water and organic solvent extractions [PDF]
, 2018 Response surface methodology (RSM) based on a three-factor and three-level Box–Behnken design was employed for optimizing the aqueous ultrasound-assisted extraction (AUAE) conditions, including extraction time (35–45 min), extraction temperature (45–55 ...
Bowyer, Michael C. +6 more
core +2 more sources
Cell wall target fragment discovery using a low‐cost, minimal fragment library
FEBS Letters, EarlyView.LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan +5 more
wiley +1 more source
Sensors, 2020 A new ionospheric tomography model is presented in this work. In the new model, the traditional voxel basis function is replaced by the blob basis function.
Debao Wen, Dengkui Mei, Yanan Du
doaj +1 more source