Papers by mohamed nadjib Guendouz
Taxonomy, palaeoecology and palaeobiogeography of upper Cenomanian (Upper Cretaceous) oysters and plicatulids from southern Algeria
Historical Biology
IECON 2007 - 33rd Annual Conference of the IEEE Industrial Electronics Society, 2007
Modeling and control of an indoor climate using a floor heating system based on a heat pump is di... more Modeling and control of an indoor climate using a floor heating system based on a heat pump is discussed. The thermodynamic models of the heat pump, room, floor and circulated water are theoretically developed and then identified through experimental data. Several control strategies, namely relay control, P control, PID control and PID control with prefiltering of reference input, are developed and simulated based on the developed system model. The simulation results turn out that the PID control with pre-filtering strategy generated the best system performance in terms of the smallest overshoot, fast response, highest COP in the transient period, and the smallest deviation and the least sensitivity to disturbance in the steady period. Meanwhile, this strategy also uses least power compared with other strategies. Instead of using the standard relay control, this study reveals a huge potential to use advanced control techniques to optimize operation of this kind of thermal system from thermal comfort and energy consumption perspectives.
MATEC Web of Conferences, 2014
La valorisation des déchets dans le génie civil est un secteur important dans la mesure où les pr... more La valorisation des déchets dans le génie civil est un secteur important dans la mesure où les produits que l'on souhaite obtenir ne sont pas soumis à des critères de qualité trop rigoureux. Le recyclage des déchets touche deux impacts très importants à savoir l'impact et l'impact économique. Donc plusieurs pays du monde, différents déchets sont utilisé dans le domaine de la construction et spécialement dans le ciment ou béton comme poudre, fibres ou agrégats. Ce travail s'intéresse à la valorisation d'un déchet qui est nuisible pour l'environnement vu son caractère encombrant et inesthétique il s'agit du déchet plastique. Trois types de déchets plastiques sont ajoutés dans le béton (sous forme de grains et fibres (ondulées et rectilignes). Les propriétés à l'état frais (maniabilité, air occlus et densité) et à l'état durci (résistance à la compression, à la traction, retrait et absorption d'eau) des différents bétons réalisés sont analysées et comparés par rapport leurs témoins respectifs. D'après les résultats expérimentaux on peut conclure que le renforcement de la matrice cimentaire avec des fibres plastiques ondulées montrent une nette amélioration de la résistance à la traction du béton ainsi qu'une diminution remarquable de sa capacité d'absorption de l'eau lorsqu'on utilise des grains plastiques.
Deep learning constitutes a significant recent advance in machine learning and has been particula... more Deep learning constitutes a significant recent advance in machine learning and has been particularly successful in applications related to image processing, where it can already surpass human accuracy in some cases. In this paper we are going to Solve industrial problem with LabView and Computer Vision as the use of a convolutional on a database of images of common objects was used as is to extract features from flotation froth images and introduces a modeling scheme of the fast Fourier transform (FFT) with high-pass filter for edge detection in simple images. The kernel-based algorithm of our detector was similar to that of conventional edge detectors.
Modeling and control of an indoor climate using a floor heating system based on a heat pump is di... more Modeling and control of an indoor climate using a floor heating system based on a heat pump is discussed. The thermodynamic models of the heat pump, room, floor and circulated water are theoretically developed and then identified through experimental data. Several control strategies, namely relay control, P control, PID control and PID control with prefiltering of reference input, are developed and simulated based on the developed system model. The simulation results turn out that the PID control with pre-filtering strategy generated the best system performance in terms of the smallest overshoot, fast response, highest COP in the transient period, and the smallest deviation and the least sensitivity to disturbance in the steady period. Meanwhile, this strategy also uses least power compared with other strategies. Instead of using the standard relay control, this study reveals a huge potential to use advanced control techniques to optimize operation of this kind of thermal system from thermal comfort and energy consumption perspectives.
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Papers by mohamed nadjib Guendouz