Moving Schwarzschild Black Hole and Modified Dispersion Relations

We study the thermodynamics of a moving Schwarzschild black hole, identifying the temperature and entropy in a relativistic scenario. Furthermore, we set arguments in a framework relating invariant geometrical quantities under global spacetime transformations and the dispersion relation of the system. We then extended these arguments in order to consider more general dispersion relations, and identify criteria to rule them out.Comment: 10 pages, no figures. Several typos fixed. New reference added. Section IV was refined according to referee's comments. Accepted in PL

A versatile trigger and synchronization module with IEEE1588 capabilities and EPICS support.

Event timing and synchronization are two key aspects to improve in the implementation of distributed data acquisition (dDAQ) systems such as the ones used in fusion experiments. It is also of great importance the integration of dDAQ in control and measurement networks. This paper analyzes the applicability of the IEEE1588 and EPICS standards to solve these problems, and presents a hardware module implementation based in both of them that allow adding these functionalities to any DAQ. The IEEE1588 standard facilitates the integration of event timing and synchronization mechanisms in distributed data acquisition systems based on IEEE 803.3 (Ethernet). An optimal implementation of such system requires the use of network interface devices which include specific hardware resources devoted to the IEE1588 functionalities. Unfortunately, this is not the approach followed in most of the large number of applications available nowadays. Therefore, most solutions are based in software and use standard hardware network interfaces. This paper presents the development of a hardware module (GI2E) with IEEE1588 capabilities which includes USB, RS232, RS485 and CAN interfaces. This permits to integrate any DAQ element that uses these interfaces in dDAQ systems in an efficient and simple way. The module has been developed with Motorola's Coldfire MCF5234 processor and National Semiconductors's PHY DP83640T, providing it with the possibility to implement the PTP protocol of IEEE1588 by hardware, and therefore increasing its performance over other implementations based in software. To facilitate the integration of the dDAQ system in control and measurement networks the module includes a basic Input/Output Controller (IOC) functionality of the Experimental Physics and Industrial Control System (EPICS) architecture. The paper discusses the implementation details of this module and presents its applications in advanced dDAQ applications in the fusion community

"Taller" (México, 1939-1941): en la encrucijada cultural del exilio español

Tomo II ; págs. 81-9

Análisis estratégico de la movilidad eléctrica

Compendio de debilidades, amenazas, fortalezas y oportunidades del automóvil eléctrico a nivel mundial en la actualidad desde un plano económico en base a estudios científicos.Universidad de Sevilla. Grado en Finanzas y Contabilida

Andalucía y tres escritores de vanguardia : Huidobro, Borges y Girondo

Tomo II ; págs. 379-393

Young Art Heritage Of The University Seville: Values And Possibilities

Mediante los sucesivos «Certámenes de Artes Plásticas» que la Universidad de Sevilla ha venido convocando desde 1994, el patrimonio de la institución ha conseguido integrar una importante colección de arte contemporáneo-joven. En las siguientes páginas, se realizará un análisis sobre su situación y una reflexión sobre su potencialidad, considerando siempre que este patrimonio constituye un elemento fundamental de enriquecimiento y de aprendizaje para la comunidad universitaria y para la sociedad en su conjunto.By means of successive «Plastic Arts Awards» that the University of Seville has been organizing since 1994, the Institutional Patrimony has been integrating an important collection of contemporary-young art. In the following pages, this situation is analized by making a reflection about the potential of this heritage, and considering that this patrimony constitutes a fundamental element of enrichment and learning for university community and for society

Roa revisita a Colón

pags. 383-39