Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Javier Pérez-Álvarez"'
Publikováno v:
Aerospace, Vol 11, Iss 9, p 748 (2024)
Additive manufacturing has profoundly influenced the aerospace industry since its inception, offering unmatched design freedom, cost reduction, rapid prototyping, and enhanced supply-chain efficiency. High-performance polymers like ULTEM™ and PEEK
Externí odkaz:
https://doaj.org/article/9f77f0d1980d4897914f747ec175514f
Autor:
Angel Porras-Hermoso, Daniel Alfonso-Corcuera, Javier Piqueras, Elena Roibás-Millán, Javier Cubas, Javier Pérez-Álvarez, Santiago Pindado
Publikováno v:
Sensors, Vol 21, Iss 14, p 4905 (2021)
This paper presents the development of the UPMSat-2 sun sensor, from the design to on-orbit operation. It also includes the testing of the instrument, one of the most important tasks that needs to be performed to operate a sensor with precision. The
Externí odkaz:
https://doaj.org/article/c29f32465a1842628ed9476c8a527fe6
Publikováno v:
International Journal of Geometric Methods in Modern Physics. 20
New conservation laws associated to a variational problem are stated, to this aim the Poincaré–Cartan form assumed to be an essential element in the multisymplectic description of Classical Field Theories.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e80eb465bdff047c58a0e5eb5e32390
https://doi.org/10.1142/s0219887823501116
https://doi.org/10.1142/s0219887823501116
Publikováno v:
The Egyptian Journal of Remote Sensing and Space Science, ISSN 1110-9823, 2021, Vol. 24, No. 2
Archivo Digital UPM
Universidad Politécnica de Madrid
The Egyptian Journal of Remote Sensing and Space Science, ISSN 1110-9823, 2021-08, Vol. 24, No. 2
Archivo Digital UPM
Universidad Politécnica de Madrid
The Egyptian Journal of Remote Sensing and Space Science, ISSN 1110-9823, 2021-08, Vol. 24, No. 2
Space systems require technologies intended for power generation and management most of the time. Within the Electric Power Subsystem, one or a group of several batteries conform the secondary power source of a space mission. In this work, the initia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92dcde3463cf126702cdd2a38b8b84da
https://doi.org/10.1016/j.ejrs.2020.12.005
https://doi.org/10.1016/j.ejrs.2020.12.005
Publikováno v:
Experimental Astronomy. 53:831-846
The ARIEL mission is a space project consisting of a spacecraft with the goal of detecting exoplanets and observing the characteristics of their atmospheres. One of the main sub-systems of the payload is the telescope that must operate under cryogeni
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae4634d969233a1852e5a8a5203fe778
https://doi.org/10.1007/s10686-021-09704-0
https://doi.org/10.1007/s10686-021-09704-0
Autor:
Javier Pérez Álvarez
Publikováno v:
Journal of Geometric Mechanics. 12:141-148
We approach with geometrical tools the contactization and symplectization of filiform structures and define Hamiltonian structures and momentum mappings on Lie groups.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c513b1e225946ea91a83981bfd1f313
https://doi.org/10.3934/jgm.2020007
https://doi.org/10.3934/jgm.2020007
Autor:
David González-Bárcena, Lilian Peinado-Pérez, Alejandro Fernández-Soler, Ángel Grover Pérez-Muñoz, Jose Miguel Álvarez-Romero, Fernando Ayape, Jonathan Martín, Juan Bermejo-Ballesteros, Ángel Luis Porras-Hermoso, Daniel Alfonso-Corcuera, Sergio Marín-Coca, Manú Soto-Aranaz, Blanca Boado-Cuartero, Rafael Garcia-Romero, Santiago Pindado, Javier Pérez-Álvarez, Juan Zamorano, Ignacio Torralbo, Javier Piqueras, Isabel Pérez-Grande, Ángel Sanz-Andrés
Publikováno v:
Acta Astronautica, ISSN 0094-5765, 2022-07, Vol. 196, No. July
Archivo Digital UPM
Universidad Politécnica de Madrid
Archivo Digital UPM
Universidad Politécnica de Madrid
The Thermal Analysis Support and Environment Characterization Laboratory (TASEC-Lab) is an experiment designed, integrated, and tested in the Universidad Politécnica de Madrid by bachelor's, master's and doctoral students. The aim of this project is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26aab3089ae86abd56a79f685af10304
https://oa.upm.es/70452/
https://oa.upm.es/70452/
Autor:
Elena Roibás-Millán, Ángel Porras-Hermoso, Javier Cubas, Santiago Pindado, Javier Pérez-Álvarez, Javier Piqueras, Daniel Alfonso-Corcuera
Publikováno v:
Sensors, ISSN 1424-8220, 2021-07, Vol. 21, No. 14
Sensors
Volume 21
Issue 14
Sensors (Basel, Switzerland)
Sensors, Vol 21, Iss 4905, p 4905 (2021)
Archivo Digital UPM
Universidad Politécnica de Madrid
Sensors
Volume 21
Issue 14
Sensors (Basel, Switzerland)
Sensors, Vol 21, Iss 4905, p 4905 (2021)
Archivo Digital UPM
Universidad Politécnica de Madrid
This paper presents the development of the UPMSat-2 sun sensor, from the design to on-orbit operation. It also includes the testing of the instrument, one of the most important tasks that needs to be performed to operate a sensor with precision. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bfe2ff5d2b96cedc2cf27f6746ec0fa
https://oa.upm.es/68320/
https://oa.upm.es/68320/
Autor:
Oscar Lopez-Garcia, Sergio Avila-Sanchez, Alvaro Cuerva-Tejero, Tee Seong Yeow, Cristobal Gallego-Castillo, Javier Pérez-Álvarez
Publikováno v:
Wind Energy. 21:87-99
We have determined the normal Reynolds stresses and spectra of the wind velocity over a 1:115 scale mock-up of the Bolund hill. The experiment was run in a neutral boundary layer wind tunnel using 3-component hot-wire velocimetry, 2-component particl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83c15a70e9567e70bf97cc0b6beb64eb
https://doi.org/10.1002/we.2146
https://doi.org/10.1002/we.2146
Autor:
Sebastián Franchini, Mikel Ogueta-Gutiérrez, Angel Sanz-Andrés, Javier Pérez-Álvarez, Omar Gómez-Ortega, F. Meseguer-Garrido
Publikováno v:
Journal of Fluids and Structures, ISSN 0889-9746, 2019, Vol. 84
Archivo Digital UPM
Universidad Politécnica de Madrid
Archivo Digital UPM
Universidad Politécnica de Madrid
As a result of the reporting of casual observations of the oscillation or rotation of the beacons in transmission line guard cables, some attention has been paid to the stability of the guard cables with beacons. The relatively more frequent observat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbed6488cfc853f372d3516b7c78fa6b
https://oa.upm.es/67007/
https://oa.upm.es/67007/