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Featured researches published by A. S. Silva.


Review of Scientific Instruments | 2011

Registration of Alfvén resonances in TCABR tokamak by the scanning reflectometer at sideband frequencies

L. Ruchko; A. G. Elfimov; C. M. Teixeira; J. I. Elizondo; E. Sanada; R. M. O. Galvão; M. E. Manso; A. S. Silva

A frequency scanning O-mode reflectometer was used for studies of plasma density oscillations during local Alfvén wave (LAW) excitation in the Tokamak Chauffage Alfvén Brésilien (TCABR) at the frequency f(A) = 5 MHz. It was found that the spectrum of the reflectometer output signal, which consists mainly of the beat frequency f(B), is modified by the LAW excitation, and two additional frequency peaks appear, which are symmetrical in relation to the LAW excitation frequency f = f(A) ± f(B). This result opens the possibility to improve the efficiency of studying the LAW induced density oscillations. The symmetry of these frequency peaks yields the possibility of finding the microwave frequency at which the reflectometer cutoff layer coincides with radial position of the LAW resonance zone in the TCABR tokamak.


Revista Brasileira de Produtos Agroindustriais | 2007

Evaluation of the influence of distillation rate on the physico-chemical characteristics of sugar cane spirit.

H. J. Dantas; F. de A. Vilar; F. L. H. da Silva; A. S. Silva


40th EPS Conference on Plasma Physics | 2013

Poloidal velocity of MHD modes at the edge of the ASDEX Upgrade tokamak

S. da Graca; G. D. Conway; E. Viezzer; A. S. Silva; L. Cupido; M. E. Manso


ABM Proceedings | 2018

ANÁLISE ESTRUTURAL DO CARBETO DE TANTALO NANOMÉTRICO POR DRX E REFINAMENTO RIETIVELD

Maria José Santos Lima; Maria Veronilda Macedo Souto; A. S. Silva; Fernando Erick Santos da Silva; Carlson Pereira de Souza; Uilame Umbelino Gomes


Review of Scientific Instruments | 2010

Publisher's Note: “Improved time-frequency analysis of ASDEX Upgrade reflectometry data using the reassigned spectrogram technique” [Rev. Sci. Instrum. 81, 10D925 (2010)]a)

P. Varela; A. S. Silva; F. da Silva; S. da Graca; M. E. Manso; G. D. Conway


Proceedings of the VIth International Congress on Cactus Pear and Cochineal, Paraiba, Brazil, 22-26 October 2007. | 2009

Hygroscopic features of Cereus squamosus flour.

Ezenildo Emanuel de Lima; R. M. F. de Figueirêdo; Alexandre José de Melo Queiroz; A. S. Silva; F. A. P. Campos; J. C. B. Dubeux; S. de Melo Silva


Archive | 2009

Epigenetic Silencing of CRABP2 and MX1 in

Marilia de Freitas Calmon; Rodrigo V. Rodrigues; Carla M. Kaneto; Ricardo Moura; Sabrina D. Silva; Louise Danielle; C. Mota; Daniel G. Pinheiro; Cesar Torres; Alex F. Carvalho; M. Cury; Fabio Daumas Nunes; Nobuko Nishimoto; Fernando Augusto Soares; L.P. Kowalski; Helena Brentani; Cleslei Fernando Zanelli; A. S. Silva; Paula Rahal; Eloiza Helena Tajara; Dirce Maria Carraro; Sandro Roberto Valentini


Central theme, technology for all: sharing the knowledge for development. Proceedings of the International Conference of Agricultural Engineering, XXXVII Brazilian Congress of Agricultural Engineering, International Livestock Environment Symposium - ILES VIII, Iguassu Falls City, Brazil, 31st August to 4th September, 2008. | 2008

Adsorption isotherms and isosteric heat of coroa-de-frade flour.

E. E. de Lima; R. M. F. de Figueirêdo; A. J. de M. Queiroz; A. S. Silva


Central theme, technology for all: sharing the knowledge for development. Proceedings of the International Conference of Agricultural Engineering, XXXVII Brazilian Congress of Agricultural Engineering, International Livestock Environment Symposium - ILES VIII, Iguassu Falls City, Brazil, 31st August to 4th September, 2008. | 2008

Rheological behavior, chemical and physical characterization of soybean and cottonseed methyl esters submitted to thermal oxidation process.

A. S. Silva; F. L. H. da Silva; E. E. de Lima; H. J. Dantas; Maria Wilma Nunes Cordeiro Carvalho; P. de A. Farias


Central theme, technology for all: sharing the knowledge for development. Proceedings of the International Conference of Agricultural Engineering, XXXVII Brazilian Congress of Agricultural Engineering, International Livestock Environment Symposium - ILES VIII, Iguassu Falls City, Brazil, 31st August to 4th September, 2008. | 2008

Effect of antioxidant on biodiesel properties under accelerated oxidation.

A. S. Silva; Maria Wilma Nunes Cordeiro Carvalho; F. L. H. da Silva; E. de L. Silva; E. E. de Lima; H. J. Dantas

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S. da Graca

Instituto Superior Técnico

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G. D. Conway

European Atomic Energy Community

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A. G. Elfimov

University of São Paulo

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Alexandre José de Melo Queiroz

Federal University of Campina Grande

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C. M. Teixeira

University of São Paulo

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Carlson Pereira de Souza

Federal University of Rio Grande do Norte

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Cesar Torres

University of São Paulo

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