Browsing Conférences, Colloques, Séminaires, Symposiums by Title
Now showing items 367-386 of 784
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HEAT TRANSFER ENHANCEMENT BY USING TWO NANOPARTICLE BASE FLUIDS IN FORCED CONVECTION FLOWS
(Université des Frères Mentouri Constantine, 2016-10-31)In the present paper, forced laminar flow of Al2O3/water and Al2O3/Ethylene Glycol (EG) nanofluids inside the tube (heated partially and uniformly) were numerically investigated by using single phase method. The effects ... -
HERMAL AND MICROSTRUCTURAL PROPERTIES OF MAGNETOCALORIC (Fe25Mn75)2P POWDERS
(Université des Frères Mentouri Constantine, 2013-12-16)The mechanical alloying process has been used to prepare nanocrystalline (Fe25Mn75)2P alloy from elemental Fe, Mn and P powders in a high energy planetary ball mill Retsch PM400, under argon atmosphere, using hardened ... -
HIGGS PHYSICS FROM NCG AND APPLICATIONS
(Université des Frères Mentouri Constantine, 2013-12-16)Some aspects and signatures of the Higgs physics from no commutative geometry are presented. Phenomenological applications are also discussed and commented -
HIGHLY TEXTURED ZnO AND ZnO:V THIN FILMS DEPOSITED BY PULSED LASER DEPOSITION
(Université des Frères Mentouri Constantine, 2013-12-16)In this work ZnO and ZnO doped vanadium (1 - 6 %) thin films were deposited on glass substrate by the pulsed laser deposition technique. The films were deposited at 500°C under oxygen ambient pressure of 10-2 mbar with ... -
HISTIDINIUM TRICHLOROCADMATE (II)
(Université des Frères Mentouri Constantine, 2013-12-16)The use of hybrid materials based on cadmium (II) is very important. In this work we expose the structure details of a new compound based on cadmium(II). The cadmium site is four coordinated with CdX4O environment. The ... -
HOW CAN WE EXPLAIN THE MUON MAGNETIC DIPOLE MOMENT EXCESS FROM 331 MODELS?
(Université des Frères Mentouri Constantine, 2013-12-16)Using the various 331 classified models, the muon magnetic dipole moment is calculated and the excess between the theory and experiment is explained -
HYBRID ELECTRODE FORMED BY NI0.3CO2.7O4 NANOPARTICLES INCORPORATED INTO POLYPYRROLE: ELECTROCATALYSIS OF O2 REDUCTION
(Université des Frères Mentouri Constantine, 2016-10-31)A hybrid electrode was formed on glassy carbon (GC) electrode with polypyrrole (Ppy) and mixed valence Ni0.3Co2.7O4 nanoparticles to study their behaviour towards the oxygen reduction reaction (ORR). The oxide nanoparticles ... -
Hydrothermal synthesis and characterization of ZnS nanoparticles
(Université des Frères Mentouri Constantine, 2016-12-15)Nanostructured materials have attracted considerable interest because of their unique physical properties and potential applications in optics and electronics. Zinc sulfide is a direct wide band gap semiconductor of the ... -
IDENTIFYING DEFECT SIZE IN TWO DIMENSIONAL PLATES BASED ON BOUNDARY MEASUREMENTS USING REDUCED MODEL BY PROPER ORTHOGONAL DECOMPOSITION AND GENETIC ALGORITHM
(Université des Frères Mentouri Constantine, 2013-12-16)In this study we use the material elastic properties as a base, a tow dimensional cracked plate is modeled by finite element method (FEM) and reduced by proper orthogonal decomposition (POD) and used as an inverse problem ... -
IF steel recrystallization: nucleation stage linked to internal misorientation parameters
(Université des Frères Mentouri Constantine, 2016-12-15)Microstructure evolution during deformation and recrystallization can be followed by several misorientation parameters, deduced or calculated from EBSD data, such as: BC (Band Contrast), GOS (Grain Orientation Spread), GND ... -
IMMOBILISATION DES DECHETS RICHES EN METAUX LOURDS DANS LA STRUCTURE DES MATERIAUX CIMENTAIRES : CAS DES DECHETS DE L’UNITE SANIAK
(Université des Frères Mentouri Constantine, 2016-10-31)Cette étude, porte sur l’utilisation du ciment CEM I comme agent de fixation des métaux lourds contenus dans les déchets ultimes de l’unité SANIAK de l’industrie Algérienne. Pour ce faire, des pâtes cimentaires ont été ... -
Impact de l’angle d’incidence du nombre de Mach et de la géométrie du profil sur la stabilité aérodynamique d’une aube en mouvement
(Université des Frères Mentouri Constantine, 2015-11-26)L’écoulement autour des aubes étant un réservoir d’énergie des instabilités sont possibles, conduisant souvent à des niveaux vibratoires dangereux. L’objectif de ce travail est d’analyser la stabilité des aubes en mouvement ... -
IMPACT DES LAMES NANOMÉTRIQUES INSÉRÉES EN SANDWISHS SUR LES PROPRIÉTÉES VIBRATIONNELLES DES STRUCTURES CFC [110]
(Université des Frères Mentouri Constantine, 2016-10-31)La dynamique vibrationnelle des structures cubiques contenants plusieurs zones d’interfaces fera l’objet de notre travail. En particulier, nous nous interessons aux mouvements des ondes élastiques via des lames atomiques minces ... -
IMPEDANCE SPECTROSCOPY ANALYSIS OF THE [(NA0.535 K 0.480 ) 0.966 LI0.058 ](NB0.90TA 0.10 )O3 BASED LEAD-FREE CERAMICS
(Université des Frères Mentouri Constantine, 2016-10-31)Polycrystalline samples of [(Na0.535 K0.480 )0.966 Li0.058 ](Nb0.90Ta0.10 )O3 were prepared using the high-temperature solid-state reaction technique. XRD analysis indicated the formation of a single-phase with ... -
IMPLEMENTATION D’UN MODELE HYPOELASTIQUE POUR SIMULER LE COMPORTEMENT MECANIQUE D’UN TISSU DE RENFORT SERGE DE VERRE DESEQUILIBRE
(Université des Frères Mentouri Constantine, 2016-10-31)La connaissance du comportement mécanique des renforts tissés est d’une grande importance, du fait qu’elle permet la prédiction de la forme finale du renfort lors de l’opération de formage. Nous présentons dans cette étude ... -
IMPROVED LIFETIME FOR LARGE AREA INVERTED ORGANIC SOLAR CELLS, USING A NOVEL ENCAPSULATED METHOD
(Université des Frères Mentouri Constantine, 2016-10-31)In this paper, we study the performance and stability of solution-processed inverted organic solar cells based on photoactive blends composed by the conjugated regioregular poly-(3-hexylthiophene) (P3HT) and [6,6]-phen ... -
Improving the Productivity of Water by Coupling a Solar Still with Flat Plate Collector
(Université des Frères Mentouri Constantine, 2013-02-17)The last statistics show that within the next fifty years, the world population will increase by 40 to 50 %. This population growth, coupled with industrialization and urbanization will result in an increasing demand for ... -
Inflationary models and applications
(Université des Frères Mentouri Constantine, 2016-12-15)Study the cosmic microwave background: polarization and anisotropy.The inflationary model has been proposed to address the shortcomings of the standard model of cosmology. This cosmological model offers both a solution ... -
Inflationary models and applications
(Université des Frères Mentouri Constantine, 2016-12-15)Study the cosmic microwave background: polarization and anisotropy.The inflationary model has been proposed to address the shortcomings of the standard model of cosmology. This cosmological model offers both a solution ... -
INFLUENCE DE LA BARRIERE DE DIFFUSION DE PALLADIUM SUR LA REACTION INTERFACIALE ENTRE LE TITANE ET LE SILICIUM
(Université des Frères Mentouri Constantine, 2013-12-16)Le présent travail consiste à une étude comparative de l’interdiffusion et de la réaction à l’état solide entre deux systèmes Ti/Si(111) et Ti/Pd/Si(111), dans le but de mettre en évidence l’intérêt d’intercaler la couche ...
