http://archives.univ-biskra.dz/handle/123456789/20 Sun, 19 Apr 2026 16:06:48 GMT 2026-04-19T16:06:48Z http://archives.univ-biskra.dz/handle/123456789/635 Titre: VERS UNE GENEALOGIE DE L’ARCHITECTURE DOMESTIQUE A BISKRA Auteur(s): SRITI, LEILA; TABET-AOUL, KHEIRA Résumé: Cet article est basé sur un travail de doctorat en cours de finalisation qui porte sur l’architecture domestique à Biskra. Il présente les résultats relatifs au premier pôle de la recherche lequel caractérise morphologiquement le cadre bâti résidentiel autoproduit (habitat populaire) et met en exergue les modalités de son évolution. La méthode utilisée pour étudier les mutations de l’espace bâti domestique est d’essence typologique. Néanmoins le modèle analytique élaborée présente l’intérêt de prendre en charge à la fois dimension temporelle diachronique et la dimension morphologique ramenée à trois variables génériques - i) l’insertion urbaine, ii) l’apparence extérieure, iii) l’organisation intérieure . L’esprit de la démarche consiste à étudier l’habitation populaire comme la somme de strates historiques successives dont les traits morphologiques pertinents sont caractérisés. L’article donne un aperçu sur l’approche méthodologique adoptée, des résultats préliminaires sont également présentés. Mon, 30 Dec 2013 00:00:00 GMT http://archives.univ-biskra.dz/handle/123456789/635 2013-12-30T00:00:00Z http://archives.univ-biskra.dz/handle/123456789/634 Titre: ETUDE NUMERIQUE DE LA VARIATION DE TEMPERAURE DANS LE SOUDAGE A L’ARC ELECTRIQUE SOUS FLUX SOLIDE DES ACIERS A FAIBLES POURCENTAGE DE CARBONE Auteur(s): DERFOUF, C; ALIOUALI, D.A Résumé: Numerical study is useful as well as necessary in the assessment of the width limit of the heat affected zone (HAZ) as far as steel welding is concerned. Only limited published work has considered a mobile heat source to define the temperature variation in industrial low carbon steel (0, 19 wt. % C) when welding is in progress between the initial and final welding time [1-4]. In this present work, an approximate method of deducting HAZ width value has been developed and shown to give reasonable results. The research aspects considered herein are as follows:  The effect of arc welding on microstructures, HAZ hardness and mechanical properties of industrial low carbon steel is studied.  The different zones near the (HAZ) are identified and their exact size and location are determined. An adequate agreement between calculated HAZ width value, steel phase change temperatures and HAZ hardness values has been obtained. Mon, 30 Dec 2013 00:00:00 GMT http://archives.univ-biskra.dz/handle/123456789/634 2013-12-30T00:00:00Z http://archives.univ-biskra.dz/handle/123456789/633 Titre: VALIDATION OF THE HYBRID METHOD FOR NEAR LIGHTING ELECTROMAGNETIC FIELD CALCULATION TAKING INTO ACCOUNT THE CONDUCTIVITY OF THE SOIL Auteur(s): M'ZIOU, N; MOKHNACHE, L; BOUBAKEUR, A Résumé: In this paper we propose a hybrid method for evaluating the electromagnetic field radiated by lightning taking into account the effect of the conductivity of the soil. The proposed method is the combination of the images method and finite difference time-domain (FDTD) method. The magnetic field is obtained by the use of the images theory and the electric field is solved with using FDTD method. We calculate first, the electromagnetic field with supposing the ground as a perfect conductor and secondly we introduce the effect of the conductivity of the soil by the use of approximations formula. Mon, 30 Dec 2013 00:00:00 GMT http://archives.univ-biskra.dz/handle/123456789/633 2013-12-30T00:00:00Z http://archives.univ-biskra.dz/handle/123456789/632 Titre: ETUDE DES CARACTERES D’ADAPTATION AU DEFICIT HYDRIQUE DE QUELQUES VARIETES DE BLE DUR ET D’ESPECES SAUVAGES APPARENTEES: INTERET POTENTIEL DE CES VARIETES POUR L’AMELIORATION DE LA PRODUCTION Auteur(s): KARA, YOUCEF; BELLKHIRI, CHEMS EDDINE Résumé: Various physiological traits linked to drought tolerance (osmotic adjustment, relative water content, and osmotic potential) were studied in ten durum wheat genotypes with a contrasted agricultural behaviour, and in accession of wild related species (Triticum.Durum cv Korifla/ Triticum dicoccoides 600808, Aegilops geniculata and Aegilotricum Amphipoide). The possibility of associating, in durum wheat, drought tolerance and high potential yield was discussed. Close relationships were observed between osmotic adjustment and water relative content and confirm the role of osmotic adjustment in tolerance to water deficit. Moreover, significant correlations were found between osmotic adjustment and field yield. Therefore, the results suggest the use of the osmotic adjustment and the relative water content as criteria of selection in the Mediterranean region. Also, the related species to durum wheat and wild species may represent, in the future, an interesting source throughout increasing biomass production and therefore the grain yield. Mon, 30 Dec 2013 00:00:00 GMT http://archives.univ-biskra.dz/handle/123456789/632 2013-12-30T00:00:00Z