Though very successful at describing a wide variety of particle physics
phenomenons, the standard model leaves some proprieties of nature unexplained. This fact lead physicists to search for new solutions based on extended ...
The thesis consists in three chapters. In the first one, we state all needed definitions and concepts
and some preliminary results. In Chapter 2, we study the existence of solutions for nonconvex
quasi-variational problems ...
The author proposes in this work, the numerical study of the natural convection
phenomenon, in a closed and open greenhouse, also a numerical study of the phenomenon of
mixed convection, in an open double-chapel greenhouse, ...
This work is part of the research program established by our research unit which consists in the phytochemical investigation of Algerian medicinal plants belonging to families known for their richness in secondary metabolites ...
In this thesis we study the limit cycles of two classes of ordinary differential syst`ems depending of small parameter. Using a theorem of first and second order averaging theory we transform the study of limit cycles of ...
The thesis subject deals from a theoretical point of view with the mode of coordination and the
electronic structure of transition metal complexes with carbenic ligands according to the nature
of the metal. Several ...
The subject studied in the presented thesis is the effect of incorporating different concentrations of multiwall carbon nanotubes into iron-copper — Fe–Cu with a ratio of 4:1; MWCNTs of 0.5, 1.0 and 2.0 vol.%—nanocomposites—made ...
This thesis consists of four distinct but complementary chapters. The first chapter contains, on the one hand, some to reminders on Sobolev spaces and polynomial spaces with their associated norms, which constitute the ...
This work is devoted to the synthesis and structural characterization of new compounds based on glutaric acid with alkaline earth metals with the incorporation of amines in the synthesis. Four new coordination polymers ...
Exposure to fine airborne particles causes deleterious health effects, particularly in urban zones where pollution levels are often high, particularly near heavily trafficked roads. A quantitative and qualitative estimate ...
This manuscript includes two main parts: In the first part, we have reported successfully the use of phenylboronic acid for the Betticyclocondensation reaction. This catalyst has been shown to be very effective to reach ...
This paper is concerned with the topic of chaos control in fractional maps. It presents two linear control laws to stabilize the dynamics of a new three-dimensional fractional Henon map. The chaos control has been achieved ...
In this work, ferrocenylmethyl alkyl imidazolium compounds and their salts were prepared, and their catalytic and electrochemical properties were studied. The effect of these salts as highly ligands in transition metal ...
In order to decrease the level of toxicity and improve the selectivity of drugs toward cancer targets, hybrid drugs are designed to simultaneously modulate multiple targets of multifactorial diseases to overcome the side ...
The main objective of this work was the development and the synthesis of complexes of biological and catalytic interest, comprising N-heterocyclic carbenes (NHCs). In fact, in the first part of this work, we have developed ...
This work is devoted to the phytochemical and pharmacological study of two species, one belonging to the genus Pistacia of the family Anacardiaceae and the other to the genus Salvia of the family Lamiaceae. The two studied ...
In this thesis, we are concerned with the uniform in bandwidth consistency of kernel-type estimators of the regression function derived by modern empirical process theory, under weaker conditions on the kernel than previously ...
Currently, solar drying is among the most important applications of solar energy. This type of drying is one of the most suitable solutions for preserving agricultural products, especially in developing countries. In order ...
In recent years, hybrid organic-inorganic perovskites have emerged as a new class of semiconductors with very interesting optoelectronic properties for photovoltaic devices. This thesis focuses on the deposition of CH3NH3PbI3 ...