Zobrazeno 1 - 10
of 110
pro vyhledávání: '"E. R. Costa"'
Autor:
Alexandre José de Oliveira e Silva, Caius Lucius Selhorst, Joaquim E. R. Costa, Paulo J. A. Simões, Carlos Guillermo Giménez de Castro, Sven Wedemeyer, Stephen M. White, Roman Brajša, Adriana Valio
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
In recent decades our understanding of solar active regions (ARs) has improved substantially due to observations made with better angular resolution and wider spectral coverage. While prior AR observations have shown that these structures were always
Externí odkaz:
https://doaj.org/article/db1dcaac69dc4ebba05bc8977df0be56
Autor:
P. H. F. Silva, M. V. F. Santos, A. C. L. Mello, T. B. Sales, E. R. Costa, L. M. P. Guimarães, D. E. Simões Neto, J. J. Coêlho, M. V. Cunha
Publikováno v:
The Journal of Agricultural Science. 161:88-96
The objective of this study was to evaluate the radiation use efficiency (RUE) and canopy structure of elephant grass varieties (Cenchrus purpureus Schum.) of contrasting statures, under monocropping or intercropped with butterfly pea (Clitoria terna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d575df4ff193abf0e1c7025072d35af
https://doi.org/10.1017/s0021859623000035
https://doi.org/10.1017/s0021859623000035
Autor:
E. R. Costa, A. C. L. Mello, A. Guim, S. B. M. Costa, B. S. Abreu, P. H. F. Silva, V. J. Silva, D. E. Simões Neto
Publikováno v:
The Journal of Agricultural Science. 160:185-193
The objective of this study was to describe and explain the effect of adding corn meal (CM) on losses, fermentation characteristics and nutritional value of silages from two elephant grass [Cenchrus purpureus (Schumach.) Morrone] genotypes (Taiwan A-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0fde455c2e28211a23d7b258a45e50c
https://doi.org/10.1017/s0021859622000284
https://doi.org/10.1017/s0021859622000284
Autor:
K. M. G. Silva, Steven G. Parsons, Matthias R. Schreiber, Alexandre S. Oliveira, Claudia V. Rodrigues, Murilo Martins, Paulo Eduardo Stecchini, Manuel Castro, Diogo Belloni, Joaquim E. R. Costa, Takayuki Hayashi, Monica Zorotovic, I. J. Lima, Teresa J. Stuchi, Gerardo Juan Manuel Luna
We present an analysis of mock X-ray spectra and light curves of magnetic cataclysmic variables using an upgraded version of the 3D CYCLOPS code. This 3D representation of the accretion flow allows us to properly model total and partial occultation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::541cc479cd6f95fc0732de18c6999138
http://arxiv.org/abs/2107.10861
http://arxiv.org/abs/2107.10861
Autor:
Karleyne M. G. Silva Silva, Cláudia V. Rodrigues, Joaquim E. R. Costa, Deonísio Cieslinski, Leonardo A. Almeida, Victor S. Magalhães
Publikováno v:
Revista UniVap, Vol 19, Iss 34 (2013)
Neste trabalho apresentamos os primeiros resultados do estudo de uma nova amostra de 7candidatas a polares a partir de dados polarimétricos obtidos no observatório do Pico dos Dias / LNA. Dos 4objetos analisados até o momento, confirmamos a presen
Externí odkaz:
https://doaj.org/article/56b594d9beb24c29b451620e5abb7820
Autor:
E. R. Costa, G. C. Silva
Publikováno v:
Direitos fundamentais em xeque: perspectivas críticas da realidade brasileira
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b69e3134b95558ffc50ed035d25c88a4
https://doi.org/10.48021/978-65-252-0868-8-c10
https://doi.org/10.48021/978-65-252-0868-8-c10
Autor:
C. G. Giménez de Castro, Caius L. Selhorst, Adriana Valio, Juha Kallunki, Joaquim E. R. Costa
To better understand the influence of the activity cycle on the solar atmosphere, we report the time variation of the radius observed at 37 GHz ($\lambda$=8.1 mm) obtained by the Mets\"ahovi Radio Observatory (MRO) through Solar Cycles 22 to 24 (1989
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7afc91677b0d4592eb9ece9c5a855e0
http://arxiv.org/abs/1912.01671
http://arxiv.org/abs/1912.01671
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 477:1508-1519
We developed a data base of pre-calculated flare images and spectra exploring a set of parameters which describe the physical characteristics of coronal loops and accelerated electron distribution. Due to the large number of parameters involved in de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::396438390511117f28918c9d85c8615e
https://doi.org/10.1093/mnras/sty867
https://doi.org/10.1093/mnras/sty867
Autor:
R. Brajša, Antonio Hales, Fabian Menezes, Kazumasa Iwai, C. G. Giménez de Castro, Caius L. Selhorst, Paulo J. A. Simões, Adriana Valio, Jean Pierre Rozelot, Joaquim E. R. Costa, Stephen M. White
Polar brightening of the Sun at radio frequencies has been studied for almost fifty years and yet a disagreement persists between solar atmospheric models and observations. Some observations reported brightening values much smaller than the expected
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44580300d43c2828c5bd67c5367fca34
https://www.bib.irb.hr/1076422
https://www.bib.irb.hr/1076422