Physique: التقديمات الحديثة

  • EFFET DE PRISE D’EAU SUR LES PROPRIÉTÉS MÉCANIQUES ET THERMIQUES D’UN NANOCOMPOSITES À MATRICE EPOXY CHARGÉE DE FUMÉE DE SILICE 
    MEHRAZ, S; BEZZAZI, B; DOKHANE, N; ARIBI, C (Université Frères Mentouri - Constantine 1, 2013-12-16)
    Durant la dernière décennie, les nanocomposites à base d’époxy chargée de particules inorganiques ont rapidement pris de l’importance, car ils peuvent offrir de remarquables améliorations en termes de propriétés mécaniques ...
  • SYNTHÈSES ET CARACTÉRISATIONS DE NANOCOMPOSITES POLYTÉTRAHYDROFURANE-MONTMORILLONITE ORGANOPHILE 
    HATTAB, YOUCEF; BENHARRATS, NASSIRA (Université Frères Mentouri - Constantine 1, 2013-12-16)
    Les nanocomposites, sont des matériaux mixtes synthétisés à partir d’une matrice polymérique mélangée à faible pourcentage avec des montmorillonites comme charges inorganiques. Les résultats obtenus montrent une ...
  • ÉTUDE DES PROPRIÉTÉS STRUCTURALES ET ÉLASTIQUES SOUS HAUTE PRESSION DE SRTIO3 DANS LES PHASES CUBIQUE ET TÉTRAGONALE 
    HAICHOUR, RACHIDA; HACHEMI, AMEL (Université Frères Mentouri - Constantine 1, 2013-12-16)
    We investigated the athermal high -pressure behavior of the elastic properties of SrTiO3 (STO) up to 26GPa in cubic and tetragonal phases using the ab initio pseudo-potential method. Our results for the cubic phase are ...
  • THE EFFECT OF EG POLYMER ON THE STRUCTURAL AND OPTICAL PROPERTIES THIN FILMS OF IN2O3 PREPARED BY SOL-GEL PROCESS 
    DJEHA, L; BOUDJADAR, S; BAOUNI, L (Université Frères Mentouri - Constantine 1, 2013-12-16)
    Nanocrystalline In2O3 thin films have been deposited on glass substrates by Sol- Gel spin coating technique. DRX, AFM, photoluminescence and UV-vis spectra characterization was used for study the effect of Ethylene glycol ...
  • A SPUTTERED ZnO THIN FILMS AS A TCO 
    SEBAA, N; BENHALILIBA, M; TOMBAK, A; OCAK, Y. S (Université Frères Mentouri - Constantine 1, 2013-12-16)
    We studied the structural and optical properties such as the crystal structure , the optical gap ,absorption and transmittance coefficient, grain size. And resistivity of ZnO thin films grown by sputtering technique
  • PHÉNOMÈNE DE RECRISTALLISATION DANS L’ALLIAGE AU4G 
    GUESSOUM, M; RAHO, A; YOUSFI, H (Université Frères Mentouri - Constantine 1, 2013-12-16)
    Le présent travail, à caractère expérimental, porte sur l’étude de phénomènes de recristallisation dans l’alliage AU4G. L’étude expérimentale est consacrée à l’observation des grains, joints de grains ainsi que les gros ...
  • HIGHLY TEXTURED ZnO AND ZnO:V THIN FILMS DEPOSITED BY PULSED LASER DEPOSITION 
    SMAALI, A; ABDELLI-MESSACI, S; LAFANE, S; KHEREDDINE, Y; KERDJA, T; KECHOUANE, M; NEMRAOUI, O (Université Frères Mentouri - Constantine 1, 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 ...
  • EXTRACTION OF EFFECTIVE PARAMETERS OF A COMPOSITE META-MATERIAL STRUCTURE 
    BENOSMAN, H; BOUKLI HACENE, N (Université Frères Mentouri - Constantine 1, 2013-12-16)
    The aim of this paper is to study the electromagnetic properties of a periodic structure in the context of meta-materials. The design tool is the HFSS software which uses the finite element method. The extraction of ...
  • EFFET DE LA TEMPÉRATURE SUR LA RÉACTIVITÉ DU VERRE QUATERNAIRE: SiO2- CaO- Na2O- P2O5 
    MEZAHI, F.-Z; HARABI, A; OUDADESSE, H; LUCAS-GIROT, A (Université Frères Mentouri - Constantine 1, 2013-12-16)
    On a étudié l’effet de la température sur la réactivité d’un verre quaternaire ; synthétisé par le procédé sol-gel. Les résultats obtenus montrent que la réactivité de ce verre dans une solution physiologique simulée ...
  • THIN FILMS GROWTH FROM ALUMINA TARGET IRRADIATED BY A KrF LASER 
    YAHIAOUI, K; ABDELLI-MESSACI, S; MESSAOUD ABERKANE, S; KHEREDDINE, Y; KELLOU, H (Université Frères Mentouri - Constantine 1, 2013-12-16)
    We report on alumina thin films growth from α-Al2O3 target by pulsed laser deposition. The alumina plasma was induced by a KrF laser beam at a wavelength of 248 nm and pulse duration of 25 ns. The laser fluence was set ...
  • MODELING OF SILICON SOLIDIFICATION USING A MODIFIED BRIDGMAN TECHNIQUE 
    OUADJAOUT, D; HAMADAS, I (Université Frères Mentouri - Constantine 1, 2013-12-16)
    Directional solidification is one of the most popular techniques for massive production of multi-crystalline silicon (mc-Si). A numerical model is developed to simulate the silicon ingot directional solidification process. ...
  • SYNTHÈSE DE NANOPARTICULES D’ARGENT DISTINÉE POUR LA METALLISATION DES CELLULES SOLAIRES 
    MOUDIR, N; MOULAÏ-MOSTEFA, N; BOUKENNOUS, Y; KAMEL, N.H; BOZETINE, I; KAMEL, Z; MOUDIR, D (Université Frères Mentouri - Constantine 1, 2013-12-16)
    L’étude envisagée porte sur la synthèse des poudres d’argent destinées à la préparation des pâtes conductrices utilisées pour la métallisation des cellules solaires. A cet effet deux poudres ont été préparées par voie ...
  • Behaviour of dislocations near phase boundaries inbicrystals of FCC materials: Au-X, X = Pb, Cu and Ni 
    Ouchtati, A; Khalfallah, O (Université Frères Mentouri - Constantine 1, 2016-12-15)
    The mechanical properties of materials are determined by the interactions between defects found in the crystal. In a bicrystal of bimaterials, the result forces exercising on the matrix dislocation near and parallel to an ...
  • BaTiO3-TiO2 nanotubesproduced by classical hydrothermal methodand their photoelectrochemical properties 
    Sobti, N; Kendouli, S; Baghriche, M; Achour, S (Université Frères Mentouri - Constantine 1, 2016-12-15)
    Nanotubes are of great interest due to their high surface-to-volume ratios and size-dependent properties. Titanium dioxide nanotube array is a well-known nanostructured semiconductor oxide with improved functional ...
  • A Study of the structural and electronic properties of LaX (X=Se, Te ) in two phases B1, B2 ander high pressure 
    Soltani, F; Baaziz, H; Charifi, Z (Université Frères Mentouri - Constantine 1, 2016-12-15)
    The objective of this work is a study of the structural properties (lattice parameters, total energy, bulk modulus) and electronic properties (band structure, density of states) of rare earth monochalcogenides LaX (X=Se, ...
  • Path Integral Solution of a Singular Oscillator Potential 
    Bekhouche, S; Bentag, B (Université Frères Mentouri - Constantine 1, 2016-12-15)
    By path integral formulation and delta functional technics we calculated the propagator of singular oscillator. We have foundthe discrete spectrum and the corresponding wave functions
  • The numerical study of the origin of the ultra high energy cosmic rays with CRPropa 
    Bouchachi, D; Attallah, R (Université Frères Mentouri - Constantine 1, 2016-12-15)
    The origin of ultra-high-energy cosmic rays is one of the most enigmatic questions in modern physics. The study of a such high-energy particles is a new and active research area where scientists wish to find the still-unknown ...
  • On Yang-Mills Matrix Models: Emergent Geometry 
    Ramda, K (Université Frères Mentouri - Constantine 1, 2016-12-15)
    One of the most fundamental questions we can ask about a given gauge theory is its phase diagram. We present Monte Carlo simulations, for a simple three matrix model that exhibits an exotic phase transition. we focus on ...
  • Inflationary models and applications 
    Djeha, K; Si Lakhal, B (Université Frères Mentouri - Constantine 1, 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 ...
  • Dose Evaluation in adaptive radiotherapy in head and neck cancers 
    Chibane, B. I; Benrachi, F; Bali, M.S (Université Frères Mentouri - Constantine 1, 2016-12-15)
    Recent developments in radiotherapy techniques, particularly VMAT technique is a tool of choice in the treatment of tumors with complex shapes such as head and neck cancers. Patients with head and neck cancer are prone ...

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