This work concerns the application of the approach of supersymmetry in quantum mechanics (SUSYQM) to solve the one-dimensional Schrödinger, Klein-Gordon and Dirac equations for a particle of position-dependent mass subject ...
In this work, we have numerically analyzed the problem of heat transfer by laminar and permanent natural convection in an eccentric annular space filled with a hybrid nanofluid. The two internal and external cylindrical ...
This thesis work focuses on the thermal performance of biosourced materials of plant origin with the aim of using them as thermal insulation in buildings. We have studied their use, particularly in subtropical climates. ...
This work is devoted to the study of the structural, morphological, optical and photocatalytic properties of thin layers of TiO2 un-doped and doped Lithium and Barium elaborated by the sol-gel method. The different samples ...
ZnO powders were synthesized by sol-gel route with ([Zn(OOCCH3)2.2H2O], > 99.9%) as precursor and at room temperature. The powders were annealed for 1 hour at temperatures between 500 and 900°C. The effects of aluminum ...
Extended surfaces, also known as cooling fins are widely used in a variety of industrial fields for cooling down electronic and mechanical components while they are employed in the area of the thermal design for heating ...
The use of solar energy to reduce the consumption of fossil fuels in buildings is an interesting solution. This thesis is part of this context. The objective of this work is, first of all, the detailed study of the sunspot ...
This thesis investigates hydrodynamic and thermal instabilities in a Taylor-Couette system subjected to differential heating, analyzing the influence of geometric parameters and rotational conditions of the cylinders across ...
The sol- gel method is a very attractive technique for elaborating materials, since it is known to be able to synthesize, at low temperature, bothnanometric powders ormaterials with finemicrostructure. Moreover,it ensuresa ...
The present work is a contribution to the study of thermosolutal magnetohydrodynamic natural convection and entropy generation in a horizontal annular space between two concentric circular cylinders filled with nanofluids ...
In this work, we studied the electroweak baryogenesis through the electroweak phase transition (EWPT) which is required to be strong and of the first order to fulfill the third Sakharov condition, the existence of (EWPT) ...
The objective of this work is to control the different parameters involved in the synthesis, by the hydrothermal method, of nanoparticles of ZnTe and ZnSe semiconductors in
order to use them as a filler and incorporate ...
Considered as the energy transporter of the future, hydrogen seems to be the miracle
solution to overcome the current energy and environmental crisis. This may be true provided that all the problems underlying in its life ...
This work is a contribution to the understanding of the phenomena occurring during
the continuous heating of an Al-Mg-Si alloy plastically deformed. Thus, the effect of plastic
deformation at two temperatures (cold and ...
This work deals with Ni/MgO intended for use as antibacterial agents. The samples were
prepared by impregnation (named NMI) followed either by irradiation under 60Co radiation
(NMR) or calcined at T ≥ 100°C (NMC(T)).
Various ...
The thesis aims to systematically extend recent observations indicating that the molecular conformation and certain vibrational modes of polysubstituted benzenes vary strongly when their environment varies. The molecules ...
Structure and spectroscopy of halogeno-methyl of benzene
products of biological interest
In the interest of research on biologically active organic products, our thesis work
consists of a spectroscopic and structural ...
Samples of pure zinc aluminates (ZnAl2O4) and doped ZnAl2O4 with both lead (Pb2+)
at different ratios (0, 0.5, 1, 1.5, 2, and 2.5% mol) and a constant amount of lanthanum
(La3+: 1% mol), were prepared by the citrate ...
This work is a contribution to the quantification and simulation of primary recrystallization in
IF steels. IF steels are alloys with high drawing capacity and are intended for the automotive
industry. To do this, we ...