Zobrazeno 1 - 10
of 359
pro vyhledávání: '"A. S. Alencar"'
Autor:
Danilo B. T. Almeida, Marcelo S. Alencar, Rafael M. Duarte, Hugerles S. Silva, Francisco Madeiro, Waslon T. A. Lopes, Wamberto J. L. Queiroz
Publikováno v:
IEEE Access, Vol 12, Pp 35325-35336 (2024)
The cell-free (CF) systems are a key technology for future wireless networks, which exploit the scenario spatial macro-diversity to offer high channel capacity and link reliability, uniform user quality of service (QoS), and better coverage. A techni
Externí odkaz:
https://doaj.org/article/df6bd87bf1184031bc35d279dcf01624
Autor:
MARCIO CATALDO, HEITOR EVANGELISTA, JOSÉ AUGUSTO A. PEREIRA, ÁLVARO LUIZ BERTHO, VIVIAN PELLIZARI, EMANUELE KUHN, MARCELO SAMPAIO, KENYA D. DA CUNHA, ALEXANDRE S. ALENCAR, DAFNE ANJOS, CESAR AMARAL
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 95, Iss suppl 3 (2023)
Abstract Despite the extent use of geochemical tracers to track warm air mass origin reaching the Antarctic continent, we present here evidences that microorganisms being transported by the atmosphere and deposited in fresh snow layers of Antarctic i
Externí odkaz:
https://doaj.org/article/2d9b86dd313a471d8c1e5234cda5dea3
Autor:
Higo Thaian P. Da Silva, Hugerles S. Silva, Marcelo S. Alencar, Wamberto J. L. De Queiroz, Ugo Silva Dias
Publikováno v:
IEEE Access, Vol 11, Pp 26979-26995 (2023)
Future wireless communication systems depend on the network’s ultra-densification, on the application of massive multiple-input multiple-output (mMIMO) techniques and on the use of higher frequency bands to satisfy the ever-increasing demands for c
Externí odkaz:
https://doaj.org/article/522641d4f4f54c839e1eb6da44dc783b
Autor:
Israel S. Maia, Aline Marcadenti, Viviane C. Veiga, Tamiris A. Miranda, Samara P.C. Gomes, Mariana B.S. Carollo, Karina L. Negrelli, Jackeline O. Gomes, Lucas Tramujas, Erlon O. Abreu-Silva, Glauco A. Westphal, Ruthy P. Fernandes, Jacques G.A. Horta, Deborah C. Oliveira, Uri A.P. Flato, Ricardo C.R. Paoliello, Camilo Fernandes, Cássio L. Zandonai, Juliana C. Coelho, Waldemar C. Barros, Juliana C. Lemos, Renata S. Bolan, Marcela M. Dutra, Otavio C.E. Gebara, Ana T.A. Lopes, Meton S. Alencar Filho, Jussara A. Arraes, Victor A. Hamamoto, Mauro E. Hernandes, Nicole A. Golin, Tiago M. Santos, Renato H.N. Santos, Lucas P. Damiani, Fernando G. Zampieri, João Gesto, Flávia R. Machado, Régis G. Rosa, Luciano C.P. Azevedo, Alvaro Avezum, Renato D. Lopes, Thiago M.L. Souza, Otávio Berwanger, Alexandre B. Cavalcanti
Publikováno v:
The Lancet Regional Health. Americas, Vol 20, Iss , Pp 100466- (2023)
Summary: Background: Repurposed drugs for treatment of new onset disease may be an effective therapeutic shortcut. We aimed to evaluate the efficacy of repurposed antivirals compared to placebo in lowering SARS-CoV2 viral load of COVID-19 patients. M
Externí odkaz:
https://doaj.org/article/718bf63291e74f88a0d1596985cdceca
Publikováno v:
IEEE Access, Vol 10, Pp 65520-65532 (2022)
Among the characteristics in fifth generation (5G) networks, a massive number of devices and a network densification stand out. Hence, efficient location management is a key factor in enabling the network to track each user under the coverage area. I
Externí odkaz:
https://doaj.org/article/306bf396a340429685982ebfda1b39a2
Autor:
P. Higo Thaian da Silva, Rafael M. Duarte, Hugerles S. Silva, Marcelo S. Alencar, Wamberto J. L. De Queiroz
Publikováno v:
IEEE Access, Vol 10, Pp 82092-82105 (2022)
Ultra densification of the number of antennas combined with the use of large bandwidths in the millimeter wave (mmWave) spectrum is considered one of the main methodologies to achieve the quality of service requirements for future generations of wire
Externí odkaz:
https://doaj.org/article/be7bf42951374530a5f293be1f8086eb
Publikováno v:
Journal of Communications Software and Systems, Vol 17, Iss 4, Pp 358-365 (2021)
This article presents a study on the performance of different digital modulation systems in the presence of epidemic interference. This type of interference is caused by the fast increase in the number of users in a system at a given time. The epidem
Externí odkaz:
https://doaj.org/article/521b2b02b1d8413a920b8c7f1c54b68a
Autor:
Naiara A. Lima, Lorena D. S. Alencar, Máximo Siu-Li, Carlos A. C. Feitosa, Alexandre Mesquita, Jean-Claude M’peko, Maria I. B. Bernardi
Publikováno v:
Journal of Advanced Ceramics, Vol 9, Iss 1, Pp 55-63 (2020)
Abstract NiWO4 was prepared using the polymeric precursor method and studied in terms of physical and chemical properties to verify its stability for industrial applications as pigments. The characterization was accomplished using thermal analyses, X
Externí odkaz:
https://doaj.org/article/f719169c0846467a95ff8f4640166b01
Publikováno v:
Brazilian Journal of Biology, Vol 83 (2021)
Externí odkaz:
https://doaj.org/article/224aecce62a34fd7aecb93ccc3c88139
Autor:
Moliria V. Santos, Hernane S. Barud, Monica A. S. Alencar, Marcelo Nalin, Sérgio H. Toma, Koiti Araki, Assis V. Benedetti, Indhira O. Maciel, Benjamin Fragneaud, Cristiano Legnani, Celso Molina, Marco Cremona, Sidney J. L. Ribeiro
Publikováno v:
Frontiers in Materials, Vol 8 (2021)
Bacterial nanocellulose (BNC) is a natural biopolymer obtained by gram-negative bacteria by means of a green and inexhaustible biotechnological process using glucose as producing source. BCN hydrogels is formed by cellulose nanofibrils that maintain
Externí odkaz:
https://doaj.org/article/336d0e42ddad43edb3862c4686bc3fae