Papers by Miguel Martínez
Cinta de Moebio: Revista de Epistemologia de Ciencias Sociales, 2003
El presente articulo trata de ilustrar el significado e implicaciones que ha ido adquiriendo, den... more El presente articulo trata de ilustrar el significado e implicaciones que ha ido adquiriendo, dentro de la Orientacion Postmodernista, la imagen de la mujer en nuestro tiempo, especialmente a lo largo de la segunda parte del siglo XX. Esta imagen ha adquirido una connotacion epistemologica y metodologica propias que nos obligan a un rediseno de la mayoria de los proyectos de investigacion en que la mujer juegue un papel determinante, ya sea como sujeto de la labor investigativa o como objeto prevalente de la misma.
Information Sciences, 2016
Multi-objective optimisation design procedures have shown to be a valuable tool for control engin... more Multi-objective optimisation design procedures have shown to be a valuable tool for control engineers. These procedures could be used by designers when (1) it is difficult to find a reasonable trade-off for a controller tuning fulfilling several requirements; and (2) if it is worthwhile to analyse design objectives exchange among design alternatives. Despite the usefulness of such methods for describing trade-offs among design alternatives (tuning proposals) with the so called Pareto front, for some control problems finding a pertinent set of solutions could be a challenge. That is, some control problems are complex in the sense of finding the required trade-off among design objectives. In order to improve the performance of MOOD procedures for such situations, preference handling mechanisms could be used to improve pertinency of solutions in the approximated Pareto front. In this paper an overall MOOD procedure focusing in controller tuning applications using designer's preferences is proposed. In order to validate such procedure, a benchmark control problem is used and reformulated into a multi-objective problem statement, where different preference handling mechanisms in the optimisation process are evaluated and compared. The obtained results validate the overall proposal as a potential tool for industrial controller tuning.
Degradation of 2,4,6-tribromophenol and 2,4,6-trichlorophenol by aerobic heterotrophic bacteria present in psychrophilic lakes
World Journal of Microbiology and Biotechnology, 2009
... times with MSM. The bacterial strains were inoculated at a cellular density of 1 9 107 CFU/ml... more ... times with MSM. The bacterial strains were inoculated at a cellular density of 1 9 107 CFU/ml in Erlenmeyer flasks with 100 ml MSM as sole carbon source or supplemented with glucose (0.3 mM) (Aranda et al. 2003), and 20 ...
A Poet of Our Own: The Struggle for Os Lusíadas in the Afterlife of Camões
Journal for Early Modern Cultural Studies, 2010
By studying some early Spanish and English translations of Luís de Camões' Os Lusíadas, this ... more By studying some early Spanish and English translations of Luís de Camões' Os Lusíadas, this essay explores the cultural and political struggle over the meaning and ownership of the Portuguese epic in early modern Europe. Shortly after the poet's death, two Castilian versions of the poem were published in 1580, the very same year of Philip II's annexation of Portugal and its overseas territories to his newly global monarchy. In 1655, some years after the Portuguese uprising against Spanish rule, the Royalist poet Richard Fanshawe published the first English translation of Os Lusíadas against the backdrop of the increasingly interventionist policies of the British Protectorate regarding the national and imperial conflict between the Iberian kingdoms. By allowing the production, redistribution, and new consumptions of literary capital, translation becomes a specifically imperial textual practice that participates in the international competition for cultural and political hegemony. This article, therefore, seeks to provide the grounds for a geopolitics of imperial cultural struggle around Os Lusíadas in early modern Europe.
Gpc In State Space With Robust Observer: Constraint Satisfaction Based On Invariant Sets
CiteSeerX - Document Details (Isaac Councill, Lee Giles): robust control invariant set when j inc... more CiteSeerX - Document Details (Isaac Councill, Lee Giles): robust control invariant set when j increases, the feasibility of GPC control law is guaranteed for all the sampling instants. Finally, this result is verified in a numerical example with a 2 states process. 1 INTRODUCTION One ...
American Journal of Physiology-Heart and Circulatory Physiology, Nov 1, 2010
Lidocaine is a class I antiarrhytmic drug that blocks Na+ channels and exists in both neutral and... more Lidocaine is a class I antiarrhytmic drug that blocks Na+ channels and exists in both neutral and charged forms at a physiological pH. In this work, a mathematical model of pH and the frequency-modulated effects of lidocaine has been developed and incorporated into the Luo-Rudy model of the ventricular action potential. We studied the effects of lidocaine on Na+ current, maximum upstroke velocity, and conduction velocity and demonstrated that a decrease of these parameters was dependent on pH, frequency, and concentration. We ...
Applied Numerical Mathematics, 2008
This work proposes a methodology of identifying linear parameter varying (LPV) models for nonline... more This work proposes a methodology of identifying linear parameter varying (LPV) models for nonlinear systems. First, linear local models in some operating points, by applying standard identifications procedures for linear systems in time domain, are obtained. Next, a LPV model with linear fractional dependence (LFR) with respect to measured variables is fitted with the condition of containing all the linear models identified in previous step (differential inclusion). The fit is carried out using nonlinear least squares algorithms. Finally, this identification methodology will then be applied to a nonlinear turbocharged diesel engine.
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Papers by Miguel Martínez