Zobrazeno 1 - 10
of 211
pro vyhledávání: '"J. M. FERREIRA"'
Autor:
J. A. Monteiro, J. M. Ferreira Júnior, I. R. Oliveira, F. L. A. Batista, C. C. C. Pinto, A. A. S. Silva, S. M. Morais, M. G. V. Silva
Publikováno v:
Biochemistry Research International, Vol 2018 (2018)
This work investigated the content of total polyphenolic compounds and flavonoids as well as their toxicity and larvicidal and acetylcholinesterase inhibitory activities. The antioxidant activities of two medicinal Senna species extracts (Senna cana
Externí odkaz:
https://doaj.org/article/096b679845eb49ffb476d04db4f2f993
Publikováno v:
Natural Hazards and Earth System Sciences, Vol 12, Iss 3, Pp 805-811 (2012)
The time dynamics of the reservoir-induced seismicity observed in Açu area (Brazil) from November 1994 to April 1997 reveals a super-Poissonian behaviour in the direction of a clustering process, where the occurrence of an earthquake increases the l
Externí odkaz:
https://doaj.org/article/d123db02e2744d05b12f85d4b4b280e0
Autor:
J. M. Ferreira Jr., O. C. Cordeiro, Y. V. França, E. N. S. Muccillo, J. R. Matos, R. Muccillo
Publikováno v:
Cerâmica, Vol 53, Iss 328, Pp 448-454 (2007)
Materiais cerâmicos à base de óxidos de manganês, de níquel e de cobalto foram preparados por meio de mistura de óxidos seguida de homogeneização e sinterização a 1250 ºC. Os compostos foram caracterizados por meio das técnicas de difraç
Externí odkaz:
https://doaj.org/article/7a457273214a49d2a1c7c306afe18bd1
Publikováno v:
E-balonmano.com: Revista de Ciencias del Deporte, Vol 19, Iss 3, Pp 243-262 (2023)
The COVID-19 crisis represented a major challenge in various social and economic sectors, and the sport context was no exception. Professional clubs had to deal with an intense organisational and operational environment, which is essential to apply t
Externí odkaz:
https://doaj.org/article/1fe9724f638f49b9a16fc0ba3b66a8a7
Autor:
Igor J. M. Ferreira, Wesley A. Campanharo, Maria L. F. Barbosa, Sonaira S. da Silva, Galia Selaya, Luiz E. O. C. Aragão, Liana O. Anderson
Publikováno v:
Frontiers in Forests and Global Change, Vol 6 (2023)
Fires are among the main drivers of forest degradation in Amazonia, causing multiple socioeconomic and environmental damages. Although human-ignited sources account for most of the fire events in Amazonia, extended droughts may magnify their occurren
Externí odkaz:
https://doaj.org/article/44f7c5d825f649ffa19c131557c670d6
Autor:
J. K. D. de Souza, L. M. C. Honório, J. M. Ferreira, S. M. Torres, I. M. G. Santos, A. S. Maia
Publikováno v:
Cerâmica, Vol 64, Iss 369, Pp 104-108
Abstract The polymeric precursor method was used for the synthesis of KNb3O8 and compared to the solid-state method. The materials were characterized by X-ray diffraction (XRD), infrared spectroscopy, Raman spectroscopy, scanning electron microscopy,
Externí odkaz:
https://doaj.org/article/bddaf52df1ec453993d1e9c1819784df
Publikováno v:
Petroleum Research; Sep2024, Vol. 9 Issue 3, p369-379, 11p
Autor:
I. da Silva, A. O. S. Silva, J. R. Santos, R. C. S. Nascimento, J. M. Ferreira, A. D. Rodrigues
Publikováno v:
Cerâmica
Abstract Tin incorporation in high-silica ZSM-12 zeolite was evaluated using different concentrations of tin and different structure-directing agents (SDA), in order to be used in the glucose isomerization reaction in fructose. The tetraethylammonium
Externí odkaz:
https://doaj.org/article/45a0e444312b47e2b3c9aee02fa67b07
Autor:
Elias G. Carayannis, Fernando A. F. Ferreira, João J. M. Ferreira, Guillermo Pérez-Bustamante, Wenchang Fang, Evangelos Grigoroudis
Publikováno v:
IEEE Transactions on Engineering Management. 70:1853-1856
Publikováno v:
SPE Production & Operations. 38:177-184
Summary Flow rate is a valuable piece of information for the oil and gas industry. High accuracy on flow rate estimation enhances the operations that control and manage production. Recognized as a cost-efficient solution, the virtual flowmeter (VFM)