30,588 research outputs found
Vulnerabilidades del uso de correo electrónico y desafíos de seguridad para su implementación futura : protocolos y medios de implementación de correo electrónico seguro
No full textFil: Maldonado Ruiz, Daniel Alejandro. Universidad de Buenos Aires. Facultad de Ciencias Económicas. Buenos Aires, Argentina
Desafíos sobre las nuevas tecnologías de resolución de CAPTCHA : características que debería poseer CAPTCHA en el futuro para su mantenimiento
No full textFil: Maldonado Ruiz, Daniel Alejandro. Universidad de Buenos Aires. Facultad de Ciencias Económicas. Buenos Aires, Argentina
CORE
No full textDesarrollo de un producto software destinado a dotar a EDEA con una herramienta que provea visibilidad y controlabilidad sobre las fuentes de energía renovables variables, así también como la centralización de información referida a la gestión del centro operativo.Fil: Lanz, Sebastián. Universidad FASTA. Facultad de Ingeniería; Argentina.Fil: Mena, Martín Ezequiel. Universidad FASTA. Facultad de Ingeniería; Argentina.Fil: Rodriguez Vuillermoz, Iván. Universidad FASTA. Facultad de Ingeniería; Argentina.Fil: Ruiz De Angeli, Gonzalo Matías. Universidad FASTA. Facultad de Ingeniería; Argentina.Fil: Di Bello, Alejandro. Universidad FASTA. Facultad de Ingeniería; Argentina
The Iberian lynx needs networks of large reserves
No full textRodriguez Alejandro. The Iberian lynx needs networks of large reserves. In: Ecologia mediterranea, tome 28 n°2, 2002. p. 101
ALDEBARAN: A "SYSTEM" DEMONSTRATOR PROJECT FOR NEW GENERATIONS OF SPACE TRANSPORTATION, NOW ENTERING IN THE PHASE A.
No full textAldebaran is the name chosen for a "system" demonstrator project which paves the way for one or more
next-generation launch vehicle targets.
The proposed demonstrator comes at a time when it is planned to operate existing European launch
vehicles (ARIANE 5, Soyuz, VEGA) until around 2025, with in parallel preparations activities for the
development of a new generation launcher. The project is aiming at developing a flight demonstrator by
focusing certain activities involved in the preparation of future launch vehicles. The first launch may take
place around 2015. It would represent a major contribution to the development of a new-generation
launch vehicle.
Several Aldebaran concepts have already been analysed in the “phase 0” during 2008. A selection process
have been applied taking into account the benefit of the proposed new technologies for the future launch
systems, but also the interest of the partners for instance by taking advantage of research activities already
foreseen. An other important selection criteria was the global development cost until the first
technological flight. The result of this “phase 0” selection process will be explained.
Three concepts have been retained for the “phase A”:
- An airborne solution launched from a military aircraft which will allow to build a dual stages
expendable “system” demonstrator, involving the main technological innovations in the frame of the solid
propulsion (first stage with new propellants), the liquid propulsion (upper stage with methane), the
structures and materials, the avionics and more globally: the “system” activities. The work foreseen in
phase A will not only focus on general studies for system and propulsion, but it will also concentrate on
some first technological sub-system demonstration tests.
- As a first alternative, an airdropped concept, launched from a cargo aircraft, is kept. It will mainly
be studied regarding safety and operational aspects in addition with the “extraction” phase when the
demonstrator is airdropped from the cargo bay, and has to be ignited at a safe distance from the aircraft.
The technologies involved in this concept are identical to the previous ones.
- As a second alternative, a “more conventional” vertical ground lift-off type of expendable solution
is retained. The idea is to push as far as possible the technological choices for a “very low cost” launch
system, the propellant choices remaining “open”. As for the airborne solution, general studies and subsystem
demonstration tests will be addressed during the phase A.
The paper will present the result of the “phase 0” concepts selection process held in 2008. And it will
show some of the first technological choices and demonstrations envisaged for the phase A of Aldebaran
La comunicación gubernamental en la era de los medios sociales: la experiencia de Gobierno Abierto e Innovación Pública del Plan de Modernización del Estado en Argentina (marzo 2016 – marzo 2017)
No full textTesis presentada para la Maestría en Dirección de Comunicaciones Institucionales. Año 2018.
Director: Alejandro Ruiz Bals
A new colony of critically endangered Northern Bald Ibises has been discovered in an Al Badia (desertic steppe) area of central Syria
No full textRodriguez Alejandro. A new colony of critically endangered Northern Bald Ibises has been discovered in an Al Badia (desertic steppe) area of central Syria. In: Ecologia mediterranea, tome 28 n°2, 2002. p. 101
Risk of Iberian lynx mortality under different hunting regimes: implications for the selection of reintroduction sites
No full textRodriguez Alejandro. Risk of Iberian lynx mortality under different hunting regimes: implications for the selection of reintroduction sites. In: Ecologia mediterranea, tome 30 n°2, 2004. pp. 242-243
Tipasa. Una mirada arqueológica a la costa de Argelia
No full textAlejandro Quevedo y Elena Ruiz Valdeas han comisariado exposición "Tipasa. Una mirada arqueológica a la costa de Argelia", a la que corresponde este catálogo. La exposición se realizó en la Sala de exposiciones temporales del Museo Teatro Romano de Cartagena desde el 20 de febrero hasta el 25 de mayo de 2025.Peer reviewe
Conferencia: "Medievo y Cine". D. Jorge Alejandro Eiroa Rodriguez. Facultad de Derecho.
No full textConferencia: "Medievo y Cine". D. Jorge Alejandro Eiroa Rodriguez. Facultad de Derecho
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