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) ...

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 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 ...

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 ...

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 ...

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 ...

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) ...

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 ...