BAENA OLIVA , María Del Carmen

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Se presenta un computador diseñado para optimizar las aplicaciones de base de datos. Para ello se han generado un conjunto de instrucciones que realizan las operaciones características de estas aplicaciones, un direccionamiento de la memoria para organizar mejor la información almacenada y unas unidades funcionales específicas para operar con los datos.

Se presenta el diseño y simulación del procesador específico para bases de datos (CBD) usando un entorno de diseño de libre distribución: ALLIANCE. Dada la complejidad del procesador, se han desarrollado dos herramientas que facilitan la generación de componentes y la simulación del sistema. Con ellas se simplifica la realización de...

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This paper analyzes the use of discontinuous quarter-point quadratic elements in a dual or hypersingular boundary element context to compute the T-stress for cracked 2-D isotropic components. The performance of this approach has been demonstrated in the past for stress intensity factors (SIFs) computation and, herein, it is revisited to assess...

En este trabajo se presenta un estudio cuantitativo sobre todas las notas de las actas de cuatro asignaturas troncales de dos titulaciones durante los últimos 10 años. En los últimos cuatro años se han introducido mecanismos de evaluación continuada en esas asignaturas, lo que permite comparar los resultados de los alumnos antes y después...

This paper describes an experience that has been carried out by several professors in different subjects. Our experience is framed within the First Plan in Teaching of the University of Seville. All involved subjects belong to the electronic technology area and from three Computer Science degrees. We propose to use, in a combined way, some...

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En este trabajo se presenta un análisis cuantitativo sobre el seguimiento real de las actividades académicas por parte del alumnado. Todos los datos utilizados proceden de los últimos 10 años, y se han obtenido de fuentes objetivas y fiables con el fin de eliminar las apreciaciones y percepciones subjetivas. Corresponden a cuatro...

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A Project is presented whose aim was to develop a set of posters that, as small tutorials, shows in a very visual way what are the basic task to do in a laboratory of electronic. These posters are directed to students of several subjects and degrees. Poster has been selected as didactic material because it is a low cost, friendly and easy...

This paper proposes the use of a dynamic clock reconfiguration technique to optimise the performance of a circuit by changing its clock frequency to achieve the maximum operating frequency. The proposed technique uses an FPGA (Field Programmable Gate Array) reconfigurable clock generator circuit that changes the generated clock frequency for a...

En esta comunicación se presenta la realización de una práctica de la asignatura Estructura de Computadores de primer curso de Ingeniería Informática en la que introduce el uso de dispositivos programables. En dicha práctica se realiza un multiplicador secuencial 4x4, diseñándolo con la herramienta ISE WebPack de Xilinx e implementándolo con...

The best way to learn how to design digital systems at the RT level is to use practical examples. In addition, from a teaching point of view, the more practical they are, the more attractive to students. But for a design to be attractive, even if it is presented with a low complexity, it is not possible to do it in a single practice session....

The fault injection in ciphers operation is a very successful mechanism to attack them. The inclusion of elements of protection against this kind of attacks is more and more necessary. These mechanisms are usually based on introducing redundancy, which leads to a greater consumption of resources or a longer processing time. This article...

Knowledge of the internal structure and operating mechanism of microprocessors is a very important part in for engineers in electronics and computer science. This knowledge can be deepened with experiences of processor design, which also meet many aspects linked to other basic skills. However, due to its complexity, the design of commercial...

Digital design learning at the RT level requires practical examples and as learning progresses, the examples need to become more complex. FPGAs and development boards offer a very suitable platform for the implementation of these designs. However, classroom practice sessions usually last two hours, which does not allow the complexity of the...

One of the best methods to improve the security of cryptographic systems used to exchange sensitive information is to attack them to find their vulnerabilities and to strengthen them in subsequent designs. Trivium stream cipher is one of the lightweight ciphers designed for security applications in the Internet of things (IoT). In this paper,...

Master subjects should ideally be very practical, to allow students to apply the knowledge they have acquired to the solving of specific problems. This paper proposes the design of a secure communications system using an SPI bus as a Master subject. The system designed uses a stream cipher to encrypt and decrypt data and allows transmission of...

El aprendizaje de diseño digital a nivel RT por los alumnos mejora con trabajos prácticos, desarrollables en equipo, que permitan tanto el avance gradual de complejidad conforme se avanza en el aprendizaje como que la propuesta sea atractiva para ellos como son la realización de sencillos juegos. Las FPGA y las placas de desarrollo ofrecen...

The learning of digital design at the RT level by the students improves with practical work, which can be developed in teams, allow both the gradual advance of complexity as the learning progresses, and the proposal to be attractive to them, such as playing simple games. FPGAs and development boards offer a very suitable platform for...

As delay models used in logic timing simulation become more and more complex, the problem of model parameter values extraction arise as an important issue, which is necessary to face in order to achieve a practical implementation of the model. In this way, this communication describes the characterization process associated to the previously...