Parcourir les contenus (73 total)

  • Collection: Al-Mieyar Journal

In this paper, we analytically demonstrate the propagation of a useful structured light laser beam;namely, the vortex Laguerre-Gaussian beam, the latter is an eigenmode of free space propagation,which is invariant under propagation in lossless…

First principles calculations of the second and third order elastic constants of the cubic silicon carbide β-SiC have been accomplished using the density functional theory within the local density approximationand the pseudopotential plane-wave…

Ab-initio calculations were performed to investigate the ground state and hydrostatic pressure effecton the structural properties of GaSb semiconducting material. The projected augmented wavepseudopotentials (PAW) approach in the framework of the…

Dans ce travail, sur la base des données expérimentales publiées dans la littérature, nous proposonsune fonction analytique qui permettra de déduire les valeurs empiriques du rapport d'intensité Kβ/Kαpour des éléments de Z = 11 à 30. Les résultats…

In this work, we present a detailed study of the on-axis intensitydistribution of the Laguerre-Gaussian beam with no azimuthal index,diffracted by an opaque disk, by means of numerical simulation ofFresnel-Kirchhoff diffraction integral. We…

In this paper, we introduce a new kind of vector flat-top-laser beam;we call it higher-order vector flat-top beam. We generate such laserbeam, by the incoherent superposition of two orthogonal modes inpolarization (Horizontal and vertical…

Cyclic voltammetry was used to study the interaction of four quinoline∙ −derivatives with superoxide anion radical (O 2 ). This method is basedon the decrease of the anodic peak current of the superoxide anionradical O∙ 2 − generated…

The electrochemical behavior of dibutyl methyl ester p-tert-butylcalix [4] arene compound 1 was studied by cyclic voltammetry. At25°C and scan rate of 20 mVs−1. The anodic peak is affected by scanrate, concentration and temperature is a totally…

This work reports the electrochemical synthesis of polypyrrole (PPy)films onto silicon (Si) support in an organic solution usingpotentiostatic mode of electrodeposition. Electrodeposition of PPy wasconducted under oxidative conditions; the current…

Dans ce travail nous avons étudié l’effet du temps de déposition sur lesdifférentes propriétés des couches minces d’oxyde de cuivre. En premierlieu nous avons élaboré des films minces de Cu 2O par électrodéposition surun substrat ITO dans un milieu…
Formats de sortie

atom, dc-rdf, dcmes-xml, json, omeka-xml, rss2