Antonio Pardo

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— Low-cost tin oxide gas sensors are inherently non-specific. In addition, they have several undesirable characteristics such as slow response, nonlinearities, and long-term drifts. This paper shows that the combination of a gas-sensor array together with self-organizing maps (SOM's) permit success in gas classification problems. The system is able to(More)
—This paper describes a portable electronic nose based on embedded PC technology. The instrument combines a small footprint with the versatility offered by embedded technology in terms of software development and digital communications services. A summary of the proposed hardware and software solutions is provided with an emphasis on data processing. Data(More)
— Gas sensing systems based on low-cost chemical sensor arrays are gaining interest for the analysis of multicom-ponent gas mixtures. These sensors show different problems, e.g., nonlinearities and slow time-response, which can be partially solved by digital signal processing. Our approach is based on building a nonlinear inverse dynamic system. Results for(More)
During the last decades came up several epistemological and didactical models, and even many methods trying to explain how to improve learning or how to better teach in online learning or eLearning situations. The real fact is that these theoretical frames, generally suitable a priori, show paradoxical results when they are applied within real situations.(More)
  • Antonio M. Seoane Pardo, Francisco J. García Peñalvo, Ángeles Bosom Nieto, Elisa Fernández Recio, María José Hernández Tovar
  • 2006
This paper is devoted to show how to manage one of the main quality items in any eLearning initiative, that is to say, tutoring on-line. In fact, on the right planning of tutorial activity depends, to a great extent, the success or deception of the learning activity. In the next paragraphs we will show which are the main skills, methods and quality items(More)
ABstrAct This chapter outlines the problem of laying the groundwork for building a suitable online training methodology. In the first place, it points out that most e-learning initiatives are developed without a defined method or an appropriate strategy. It then critically analyzes the role of the constructivist model in relation to this problem, affirming(More)
This paper presents the experimental application of an autonomous mobile robot for gas leak detection in indoor environments. The application is focused to automatize a human-risky operation in indoor areas. The goal of the autonomous mobile robot is the localization of a toxic gas leak source. So, the mobile robot has to explore the whole area and perform(More)
In applied research as well as in clinical practice, it is common to evaluate the change that patients experience as a consequence of the treatment they receive. Various methods designed to evaluate this change are reviewed in this study. This review has focused on a specific aspect that has not been given proper attention: the false positive rate. For this(More)