1. |
- Bernal, Ximena E., et al.
(författare)
-
Empowering Latina scientists
- 2019
-
Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 363:6429, s. 825-826
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
|
|
2. |
- Kehoe, Laura, et al.
(författare)
-
Make EU trade with Brazil sustainable
- 2019
-
Ingår i: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 364:6438, s. 341-
-
Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
|
|
3. |
- De Paz Urueña, Rafael, et al.
(författare)
-
Momate. Moderniser la formation sur les Energies Renouvelables (ER) au Maghreb : Transfer de l'expérience
- 2017
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Le projet vise à développer une formation de type DUT (Diplôme Universitaire de Technologie) en ingénierie des Energies Renouvelables et à soutenir l'émergence de technopoles spécialisées dans les Energies Renouvelables. L'objectif est de développer des compétences permettant d'acquérir des connaissances de base sur la production d'électricité à partir d'énergies renouvelables (éolienne, solaire, photovoltaïque, etc.). El proyecto pretende desarrollar un programa de formación como el DUT (Diplôme Universitaire de Technologie) en ingeniería de Energías Renovables y apoyar la aparición de tecnopolos especializados en Energías Renovables. Para ello se pretende desarrollar competencias que permitan adquirir conocimientos básicos sobre la producción de energía eléctrica a partir de energías renovables (eólica, solar, fotovoltaica, etc.)
|
|
4. |
- Fuentes, Rafael Diaz, et al.
(författare)
-
A ømega-Circulant Regularization for Linear Systems Arising in Interpolation with Subdivision Schemes
- 2021
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- In the curve interpolation with primal and dual form of stationary subdivision schemes, the computation of the relevant parameters amounts in solving special banded circulant linear systems, whose coefficients are related to quantities arising from the used stationary subdivision schemes. In some important cases it happens that the associated generating function, which is a special Laurent polynomial called symbol, has zeros on the unit complex circle of the form exp(2\pi ı j/n), where n is the size of the matrix, ı^2=-1, and j is a non-negative integer bounded by n-1. When this situation occurs the discrete problem is ill-posed simply because the circulant coefficient matrix is singular and the problem has no solution (or infinitely many). Standard and nonstandard regularization techniques such as least square solutions or Tikhonov regularization have been tried, but the quality of the solution is not good enough. In this work we propose a structure preserving regularization in which the circulant matrix is replaced by the ømega-circulant counterpart, with ømega being a complex parameter. A careful choice of ømega close to 1 (recall that the set of 1-circulants coincides with standard circulant matrices) allows to solve satisfactorily the problem of the ill-posedness, even if the quality of the reconstruction is reasonable only in a restricted number of cases. Numerical experiments and further algorithmic proposals are presented and critically discussed.
|
|