Guia de Microsoft Word 2003

Aquesta guia és una introducció a la creació de documents digitals accessibles amb el processador de textos Microsoft Word 2003.

Guia de Microsoft Word 2007

Aquesta guia és una introducció a la creació de documents digitals accessibles amb el processador de textos Microsoft Word 2007.

Guia d’OpenOffice Writer

Aquesta guia és una introducció a la creació de documents digitals accessibles amb el processador de textos OpenOffice Writer 3.

Guia de Microsoft PowerPoint 2003

Aquesta guia és una introducció a la creació de presentacions digitals accessibles amb Microsoft PowerPoint 2003.

Guia d'ús d’Adobe Reader

Aquesta guia explica com s’accedeix a la informació d’un document PDF.

Guia per convertir documents Microsoft Word 2003 i 2007 a PDF

Aquesta guia explica com convertir documents Microsoft Word 2003 i 2007 a documents PDF.

Guia per convertir documents OpenOffice Writer a PDF

Aquesta guia explica com convertir documents Open Office Writer a format PDF.

Guia de reparació de documents PDF

Aquesta guia explica com reparar documents existents en format PDF perquè siguin accessibles.

Guia per convertir Microsoft PowerPoint a PDF

Aquesta guia explica com convertir documents Microsoft PowerPoint a format PDF.

Guia d’OpenCms

Aquesta guia mostra el procés de creació de contingut accessible amb la plataforma OpenCms.

Guia de Sakai

Aquesta guia mostra el procés de creació de contingut accessible amb la plataforma Sakai.

Guia d’editor web FCK Editor

Aquesta guia mostra el procés de creació de contingut accessible amb l’editor web FCK Editor.

Using the optical flow to implement a relative virtual mouse controlled by head movements

The following paper introduces the work conducted to create a relative virtual mouse based on the interpretation of head movements and face gesture through a low cost camera and the optical flow of the images. This virtual device is designed specifically as an alternative non-contact pointer for people with mobility impairments in the upper extremities and reduced head control. The proposed virtual device was compared with a conventional mouse, a touchpad and a digital joystick. Validation results show performances close to a digital joystick but far away from a conventional mouse.

Coscheduling techniques and monitoring tools for non-dedicated cluster computing

Our efforts are directed towards the understanding of the coscheduling mechanism in a NOW system when a parallel job is executed jointly with local workloads, balancing parallel performance against the local interactive response. Explicit and implicit coscheduling techniques in a PVM-Linux NOW (or cluster) have been implemented. Furthermore, dynamic coscheduling remains an open question when parallel jobs are executed in a non-dedicated Cluster. A basis model for dynamic coscheduling in Cluster systems is presented in this paper. Also, one dynamic coscheduling algorithm for this model is proposed. The applicability of this algorithm has been proved and its performance analyzed by simulation. Finally, a new tool (named Monito) for monitoring the different queues of messages in such an environments is presented. The main aim of implementing this facility is to provide a mean of capturing the bottlenecks and overheads of the communication system in a PVM-Linux cluster.

What to consider for applying backfilling on non-dedicated environments

The resource utilization level in open laboratories of several universities has been shown to be very low. Our aim is to take advantage of those idle resources for parallel computation without disturbing the local load. In order to provide a system that lets us execute parallel applications in such a non-dedicated cluster, we use an integral scheduling system that considers both Space and Time sharing concerns. For dealing with the Time Sharing (TS) aspect, we use a technique based on the communication-driven coscheduling principle. This kind of TS system has some implications on the Space Sharing (SS) system, that force us to modify the way job scheduling is traditionally done. In this paper, we analyze the relation between the TS and the SS systems in a non-dedicated cluster. As a consequence of this analysis, we propose a new technique, termed 3DBackfilling. This proposal implements the well known SS technique of backfilling, but applied to an environment with a MultiProgramming Level (MPL) of the parallel applications that is greater than one. Besides, 3DBackfilling considers the requirements of the local workload running on each node. Our proposal was evaluated in a PVM/MPI Linux cluster, and it was compared with several more traditional SS policies applied to non-dedicated environments.