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Some ionospheric storm effects at equatorial and low latitudes
(Elsevier, 2014-04)
In this paper, the response of the equatorial and low latitude ionosphere to three intense geomagnetic storms occurred in 2002 and 2003 is reported. For that, critical frequency of F2-layer foF2 and the peak height hmF2 ...
Some ionospheric storm effects at equatorial and low latitudes
(Elsevier, 2014-03-04)
In this paper, the response of the equatorial and low latitude ionosphere to three intense geomagnetic storms occurred in 2002 and 2003 is reported. For that, critical frequency of F2-layer foF2 and the peak height hmF2 ...
Diurnal evolution of the F region electron density local time gradient at low and middle latitudes resolved by the Swarm constellation
(American Geophysical Union, 2016-09-02)
In this study we have provided new insights into the local time gradient of F region electron density (ΔNe) derived from the lower pair of Swarm satellites flying side by side. Our result shows that the electron density ...
Effects on the equatorial and low latitude thermosphere and ionosphere during the 19-22 December 2015 geomagnetic storm period
(Elsevier, 2020-05)
In this paper, the critical frequency of F2 layer (foF2) and their peak height (hmF2) recorded at equatorial and low latitude stations of the South American sector were analyzed during the 19–22 December 2015 geomagnetic ...
Equatorial ionospheric electrodynamics during solar flares
(American Geophysical Union, 2017-05-09)
Previous investigations on ionospheric responses to solar flares focused mainly on the photoionization caused by the increased X‐rays and extreme ultraviolet irradiance. However, little attention was paid to the related ...
Fermentação e parâmetros ruminais de ovinos alimentados com gordura protegida
(Universidade Tecnológica Federal do ParanáDois VizinhosBrasilBacharelado em ZootecniaUTFPR, 2015-02-04)
The objective was to evaluate the effect of inclusion of protected fat in the diet of ovine on fermentation and ruminal parameters, as ruminal pH, ammoniacal nitrogen concentration (N-NH 3), and total sugar. The animals ...
Comportamento ingestivo de bovinos em sistema de pastejo rotacionado submetidos a diferentes estratégias de suplementação
(Universidade Estadual Paulista (Unesp), 2007-03-05)
Foram realizados três experimentos com o objetivo de avaliar o comportamento ingestivo de bovinos submetidos a diferentes estratégias de suplementação e seus efeitos sobre o desempenho. No primeiro experimento foram ...
O descarte e acondicionamento de resíduos sólidos doméstico no bairro da Fazenda Grande do Retiro, Salvador – BA
(Universidade Tecnológica Federal do ParanáMedianeira, 2014-04-26)
This monograph seeks to identify the environmental impacts of municipal solid waste management in the Great Retreat Farm / Salvador / BA neighborhood surrounding the Municipal School Fountain Grass in the light of a vision ...
Three-dimensional nonlinear evolution of equatorial ionospheric spread-F bubbles
(American Geophysical Union, 2003-08-26)
Using numerical simulation techniques, we present the first study of the three‐dimensional nonlinear evolution of an equatorial spread‐F bubble. The background ionosphere used to initialize the bubble evolution is computed ...
On the mutual relationship of the equatorial electrojet, TEC and scintillation in the Peruvian sector
(American Geophysical Union, 2016-05-31)
This paper presents the interrelationship between the equatorial electrojet (EEJ) strength, Global Positioning System (GPS)‐derived total electron content (TEC), and postsunset scintillation from ground observations with ...