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 ...
In this thesis, we studied two different phenomena. In the first part,
the accelerated expansion of the universe without introducing the
concept of dark energy was examined. We studied it in the FRW
metric with perfect ...
The present work deals with the elaboration and characterization of nanometric thin layers of
binary and ternary transition metals and rare earth silicides. The binary system samples were
obtained by implantation of ...
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 study ...
The main objective of the study undertaken in this thesis is to elaborate undoped tin dioxide
(SnO2) thin films and doped by Fluorine and Gadolinum from two methods synthetic sol-gel
and pyrolysis spray, and to optimize ...
Our envisaged purpose in this thesis is to understand the role and the behavior of halogens and methyls in the study of N - ((4-Chlorophenyl) (2-Hydroxynaphtalen-1-YL) Methyl) Acetamide and (Z) -4 - (4-Hydroxybenzylidene) ...
In this Work, undoped and Pb-doped ZnO thin films have been prepared by sol gel method and deposited on glass substrate using dipcoating technique. The structural, morphological, and optical properties
of the films were ...
This research work is a numerical simulation of forced and mixed convectionthreedimensional of a fluid characterized by thermo-dependencethree-dimensional of a fluid characterized by thermo-dependenceof physical ...