Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Oscar de la Torre"'
Autor:
Xavier Sánchez-Botello, Rafel Roig, Oscar de la Torre, Javier Madrigal, Salvador Sales, Xavier Escaler
Publikováno v:
Sensors, Vol 23, Iss 15, p 6695 (2023)
The structural dynamic response of hydraulic turbines needs to be continuously monitored to predict incipient failures and avoid catastrophic breakdowns. Current methods based on traditional off-board vibration sensors mounted on fixed components do
Externí odkaz:
https://doaj.org/article/f45899db7fa64cdd88b162f6942e3c14
Publikováno v:
Energies, Vol 14, Iss 19, p 6033 (2021)
To accelerate the integration of fluctuating renewable energy technologies in the power systems, it is necessary to increase the flexibility of hydropower by operating turbines at off-design conditions. Unfortunately, this strategy causes deleterious
Externí odkaz:
https://doaj.org/article/df54b7c51da249ef816cf875ad5e1f37
Publikováno v:
Sensors, Vol 21, Iss 13, p 4272 (2021)
The present paper assesses the performance and characteristics of fiber Bragg grating sensors, with a special interest in their applications in hydraulic machinery and systems. The hydropower industry is turning to this technology with high expectati
Externí odkaz:
https://doaj.org/article/28c8a3b038ff44609ba09783176cde6b
Publikováno v:
European Research on Management and Business Economics, Vol 22, Iss 3, Pp 117-123 (2016)
The present paper studies the mean–variance efficiency of the sustainable investment (SI) practice in Mexico by proving the existence of a statistical equality in the performance levels of the IPC sustainability (IPCS) index against the broad marke
Externí odkaz:
https://doaj.org/article/38e23d1879ca4866bf14801be4d9dbdf
Publikováno v:
Applied Sciences, Vol 10, Iss 15, p 5184 (2020)
A numerical investigation of the erosion aggressiveness of leading edge unsteady cloud cavitation based on the energy balance approach has been carried out to ascertain the main damaging mechanisms and the influence of the free stream flow velocity.
Externí odkaz:
https://doaj.org/article/96b9ec039e5f484888f26ccb3b924ed1
Publikováno v:
Energies, Vol 12, Iss 9, p 1758 (2019)
It has been found recently that the dynamic behavior of a cavitating hydrofoil is different from that in pure water in that, not only are the natural frequencies different, but the mode shapes may also change. In order to elucidate the mechanism behi
Externí odkaz:
https://doaj.org/article/9829ca7e6a89497fbbc0cc9a5895e567
Autor:
Oscar De la Torre Torres
Publikováno v:
Economía Teoría y Práctica, Iss 39, Pp 119-144 (2013)
En el presente artículo se prueba la utilidad de un proceso de administración activa de portafolios con matrices de covarianzas garch ortogonal ( ogarch ) en la reserva técnica de fondos de pensiones de beneficio definido, como es el caso de la Di
Externí odkaz:
https://doaj.org/article/057ea30ed3454539b894981e84903499
Autor:
Oscar de la Torre
Publikováno v:
Afro-Ásia, Iss 51 (2015)
Externí odkaz:
https://doaj.org/article/7a3363bb78c349deaf542254fce2309f
Autor:
Oscar de la Torre
In this history of the black peasants of Amazonia, Oscar de la Torre focuses on the experience of African-descended people navigating the transition from slavery to freedom. He draws on social and environmental history to connect them intimately to t
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 70:481-491
© 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6853cf33680250e7c430148dc97b1f4a
https://doi.org/10.1109/tcsi.2022.3218189
https://doi.org/10.1109/tcsi.2022.3218189