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Geradores Betavoltaicos para Sistemas Eletrônicos Portáteis

Autor: D. L. Toufen, Gabriel Salomão Ferreira

Publikováno v: The Academic Society Journal. :78-90

Betavoltaic Generators for Portable Electronic Systems Conventional energy sources, based on electrochemical processes, have become an everyday element, being used in countless electronic equipment, such as smartphones and notebooks. However, even wi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a03f386129ae4988c71c265f5a4c18b6
https://doi.org/10.32640/tasj.2020.2.78

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Gradient-driven turbulence in Texas Helimak

Autor: D. L. Toufen, F. A. C. Pereira, Z. O. Guimarães-Filho, I. L. Caldas, K. W. Gentle

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

We investigate the turbulence level dependence on plasma profiles in experiments in Texas Helimak, a toroidal basic plasma device, with long stable electron cyclotron resonant heating (ECRH) discharges and great flexibility to alter the equilibrium m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7deb57e967fa2a63b70775854209db60

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Coexistence of turbulence regimes in the Texas Helimak

Autor: D. L. Toufen, Kenneth W Gentle, Iberê L. Caldas, Zwinglio Guimarães-Filho, Ricardo L. Viana, Felipe A. C. Pereira

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The turbulence of magnetically confined plasmas usually presents high-density pulses with short duration known as bursts. In the Texas Helimak, it is possible to suppress bursts in a broader region by applying a negative electrostatic bias. However,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e859cc46ce56f2982d00aa8e92976000

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Statistical properties of intermittent bursts in the Texas Helimak

Autor: D. L. Toufen, Kenneth W Gentle, Iberê L. Caldas, Felipe A. C. Pereira, Zwinglio Guimarães-Filho, Igor M. Sokolov

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

We present investigations of intermittent turbulence in the Texas Helimak, a simple toroidal plasma device in which the turbulence properties are modified by applying a bias voltage. The analyzed turbulence presents high density bursts, detected by L

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f0d497ce5668353d6d840d212faf6cb

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Techniques of the Optimization Based in Artificial Intelligence Applied to Hydrothermal Power Systems Operation Planning

Autor: D. L. Toufen, Karla Vitorri, Thiago Ribeiro de Alencar, Ricardo A. L. Rabelo, Fabio Antunes, Patricia Teixeira Leite

Publikováno v: IEEE Latin America Transactions. 12:1615-1624

The Hydrothermal Power Systems Operation Planning (HPSOP) aims to determine a strategy for each generation plant at each time interval in order to minimize the expected value of operating costs in the planning horizon. This is a challenge for manager

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8a03cd26d653143a5577b55054026c91
https://doi.org/10.1109/tla.2014.7014536

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Dynamical Effects in Confined Plasma Turbulence

Autor: Marisa Roberto, Antonio M. Batista, Ivan Cunha Nascimento, Iberê L. Caldas, K. C. Rosalem, F. A. Marcus, Kenneth W Gentle, Zwinglio Guimarães-Filho, Yu K Kuznetsov, Sergio Roberto Lopes, D. L. Toufen, R. L. Viana, José D. Szezech

Publikováno v: Brazilian Journal of Physics. 44:903-913

Plasma turbulence at the edge of tokamaks is an issue of major importance in the study of the anomalous transport of particles and energy. Although the behavior of a turbulent plasma seems intractable, it turns out that many of its aspects can be des

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d3c9326e3a8c0f7dd15291b6912d560f
https://doi.org/10.1007/s13538-014-0259-x

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γ-Particle coincidence technique for the study of nuclear reactions

Autor: E. W. Cybulska, P. R. P. Allegro, Marcilei A. G. Silveira, Leandro Gasques, Julian Marco Barbosa Shorto, W. A. Seale, Guilherme S. Zahn, J. R. B. Oliveira, V. A. B. Zagatto, Roberto Vicençotto Ribas, Roberto Linares, Nilberto H. Medina, C. P. Silva, Gustavo Nobre, D. L. Toufen, J. Lubian, Luiz Carlos Chamon, E. S. Rossi, Frederico A. Genezini

Publikováno v: Biblioteca Digital de Teses e Dissertações da FEI
Centro Universitário da Fundação Educacional Inaciana (FEI)
instacron:FEI
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

The Saci-Perere γ ray spectrometer (located at the Pelletron AcceleratorLaboratory - IFUSP) was employed to implement the γ-particle coincidence technique for the study of nuclear reaction mechanisms. For this, the 18O+110Pd reaction has been studi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8332114f230fd9ade0b1b0c39322307

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Recurrence Analysis of Turbulent Fluctuations in Magnetically Confined Plasmas

Autor: Zwinglio Guimarães-Filho, Iberê L. Caldas, D. L. Toufen, R. L. Viana, Ivan Cunha Nascimento, Kenneth W Gentle

Publikováno v: Springer Proceedings in Physics ISBN: 9783319299211

Recurrence plots and their quantification became a modern tool in nonlinear data analysis, currently being used in a myriad of scientific disciplines, a diversity that characterizes the Recurrence Plot Workshop since its beginning. In this work we re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::913443b9d47eb99f03e8e60a8c0910dc
https://doi.org/10.1007/978-3-319-29922-8_18

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