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of 4 331
pro vyhledávání: '"de Oliveira, L"'
The Duffin-Kemmer-Petiau equation is investigated for spin one bosons with the so-called natural (normal) and unnatural (abnormal) parity states for non-minimal vector interactions. To illustrate the current state of knowledge about the equation, a t
Externí odkaz:
http://arxiv.org/abs/2408.07662
Autor:
Duarte, D. G., de Souza, S. F., de Oliveira, L. B., Junior, E. B. M., de Araujo, E. N. D., Fonseca, J. M., de Araujo, C. I. L.
Artificial spin ices (ASI), containing magnetic monopole quasi-particles emerging at room temperature, have been investigated as a promising system to be applied in alternative low-power information technology devices. However, restrictions associate
Externí odkaz:
http://arxiv.org/abs/2406.17775
Autor:
SALOMON, C. P., FERREIRA, C., LAMBERT-TORRES, G., TEIXEIRA, C. E., BORGES DA SILVA, L. E., SANTANA, W. C., BONALDI, E. L., DE OLIVEIRA, L. E. L.
Publikováno v:
Advances in Electrical and Computer Engineering, Vol 18, Iss 4, Pp 91-98 (2018)
Permanent magnet synchronous machines (PMSMs) drives are attractive and have been used in several applications, because of their noteworthy advantages. In some applications, the continuous operation is necessary, and then the PMSM drive outage is u
Externí odkaz:
https://doaj.org/article/dbd260b1ac514ed5bbd3fe1e572b1667
Autor:
Nascimento, F. S., de Oliveira, L. B., Duarte, D. G., de Araujo, C. I. L., Moura-Melo, W. A., Pereira, A. R.
Magnetic structure factor (MSF) is employed to investigate the ground state degeneracy in rectangular-like artificial spin ices. Our analysis considers the importance of nanoislands size via dumbbell model approximation. Pinch points in MSF and resid
Externí odkaz:
http://arxiv.org/abs/2310.09662
In this article, we show explicitly the Wedderburn decomposition of the metacyclic group algebra $\mathbb F_qG$, where $G$ has a cyclic subgroup of index 2 and $\gcd(|G|,q)=1$. We also construct the complete set of central and left idempotents of the
Externí odkaz:
http://arxiv.org/abs/2210.07226
Autor:
Duarte, D. G., de Oliveira, L. B., Nascimento, F. S., Moura-Melo, W. A., Pereira, A. R., de Araujo, C. I. L.
Magnetic monopole unpairing as a function of external magnetic fields is presented as a fingerprint of this emergent quasiparticles freedom in a two-dimensional artificial spin ice system. Such freedom, required for example for further application in
Externí odkaz:
http://arxiv.org/abs/2207.06204
Autor:
Messias, Y. S., de Oliveira, L. L. A., Gomes, R. L., Gonçalves, M. I. Arruda, Martins, B. L. Canto, Leão, I. C., De Medeiros, J. R.
A dearth of close-in planets orbiting rapid rotators was reported almost a decade ago. According to this view only slowly spinning stars with rotation periods longer than 5-10 days would host planets with orbital periods shorter than 2 or 3 days. Thi
Externí odkaz:
http://arxiv.org/abs/2205.04893
Autor:
Nascimento, F. S., de Oliveira, L. B., Duarte, D. G., de Araujo, C. I. L., Moura-Melo, W. A., Pereira, A. R.
Publikováno v:
Journal of Applied Physics; 6/28/2024, Vol. 135 Issue 24, p1-7, 7p
Autor:
Leal-Conceição, E., Muxfeldt Bianchin, M., Vendramini Borelli, W., Spencer Escobar, V., Januário de Oliveira, L., Bernardes Wagner, M., Palmini, A., Paglioli, E., Radaelli, G., Costa da Costa, J., Wetters Portuguez, M.
Publikováno v:
In Neurología June 2024 39(5):399-407
Autor:
Marcelino, C. G., Leite, G. M. C., Delgado, C. A. D. M, de Oliveira, L. B., Wanner, E. F., Jiménez-Fernández, S., Salcedo-Sanz, S.
Publikováno v:
Expert Systems With Applications (2021)
This paper tackles the short-term hydro-power unit commitment problem in a multi-reservoir system - a cascade-based operation scenario. For this, we propose a new mathematical modelling in which the goal is to maximize the total energy production of
Externí odkaz:
http://arxiv.org/abs/2107.09718