Results 1 to 10 of about 8,969 (223)

Comparison of IRI-2016 model with IGS VTEC maps during low and high solar activity period

open access: yesResults in Physics, 2019
This paper presents a comparison of IRI-2016 model vertical total electron content (VTEC) predictions and the International GNSS Service (IGS) VTEC maps during low and high solar activity, from 2000 to 2017. The comparison is carried out by investigation
Chuang Shi, Cheng Wang, Zhipeng Wang
exaly   +3 more sources

Escherichia coli verocitotoxigénico (VTEC) [PDF]

open access: yes, 2009
Argentina es el país con mayor número de casos de SUH a nivel mundial. Los bovinos son el principal reservorio de Escherichia coli verocitotoxigénico (VTEC) y los rodeos argentinos presentan una alta prevalencia de este patógeno. En la región pampeana se
Etcheverría, Analía Inés   +3 more
core   +2 more sources

Towards Cooperative Global Mapping of the Ionosphere: Fusion Feasibility for IGS and IRI with Global Climate VTEC Maps

open access: yesRemote Sensing, 2020
Recommendations of the International Reference Ionosphere (IRI) Workshop 2017 in Taoyuan City, Taiwan and International GNSS Service (IGS) Workshop 2018 in Wuhan, China included establishment of an ionosphere mapping service that would fuse measurements ...
Adam Froń   +2 more
exaly   +3 more sources

A Novel Technique for High-Precision Ionospheric VTEC Estimation and Prediction at the Equatorial Ionization Anomaly Region: A Case Study over Haikou Station

open access: yesRemote Sensing, 2023
This paper introduces a novel technique that uses observation data from GNSS to estimate the ionospheric vertical total electron content (VTEC) using the Kriging–Kalman method.
Hai-Ning Wang   +6 more
doaj   +1 more source

General resource for ionospheric transient investigations (GRITI): An open-source code developed in support of the Dinsmore et al. (2021) results

open access: yesMethodsX, 2021
The analysis techniques and the corresponding software suite GRITI (General Resource for Ionospheric Transient Investigations) are described. GRITI was used to develop the Dinsmore et al.
Ross Dinsmore   +2 more
doaj   +1 more source

Medium-term ionospheric response to the solar and geomagnetic conditions at low-latitude stations of the East African sector

open access: yesCogent Engineering, 2023
In this study, we used GPS-TEC measurements from six stations in East Africa located in low/equatorial latitudes to investigate medium-term ionospheric response to solar and geomagnetic circumstances during 2014–2016.
Shumet Woldemariam, Tsegaye Gogie
doaj   +1 more source

Epidemiological importance of humans and domestic animals as reservoirs of verocytotoxin-producing Escherichia coli [PDF]

open access: yesVojnosanitetski Pregled, 2006
Background/Aim. A "new" pathogenic agent, verocytotoxin - producing Escherichia coli (VTEC) emerged in the last 20 years, causing an increased number of sporadic cases, as well as of outbreaks of diarrhoeal diseases.
Lazić Srđan   +4 more
doaj   +1 more source

Deriving VTEC Maps from SMOS Radiometric Data [PDF]

open access: yesRemote Sensing, 2020
In this work, a new methodology is proposed in order to derive vertical total electron content (VTEC) maps from the radiometric measurements of the Soil Moisture and Ocean Salinity (SMOS) mission as an alternative approach to those based on external databases and models.
Roselena Rubino   +6 more
openaire   +4 more sources

Some traits of Verotoxin-producing strains of Escherichia coli isolated from cattle [PDF]

open access: yesVeterinarski Glasnik, 2010
Verotoxin-producing Esherichia coli (VTEC) is one of six pathogenicity groups of Eschericha coli. The reservoir for VTEC is the intestinal tract of domestic animals, primarily ruminants. Investigations in our geographic region have also demonstrated that
Lazić Srđan   +9 more
doaj   +1 more source

On the global ionospheric diurnal double maxima based on GPS vertical total electron content

open access: yesJournal of Space Weather and Space Climate, 2022
Ionospheric diurnal double maxima (DDM) is a twin-peak pattern in the ionospheric electron density/total electron content (TEC) during the daytime. Understanding the characteristics of DDM is essential to study the physical mechanisms of the ionosphere ...
Chen Peng   +4 more
doaj   +1 more source

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