This Thesis include two sets of distinct works but both of them are concerned with few body quantum systems. The first part is a contribution to two optimized lower bounds for four body systems: the old and the new optimized ...

In the present work, we have studied essentially the structural and optical properties of ZnO thin films elaborated using the physical technique s of the pulsed laser ablation (PLD) and the chemical method of the ultrasonic ...

The heterostructure consisted of a hard magnetic material and a soft magnetic material, allow the manufacture of artificial domain wall through an exchange coupling at the interface range. Typical examples of such compounds ...

The aim of this work is the study of the productivity of an active solar still with a single basin and a simple slope, provided with two reflectors internal and external, coupled with a photovoltaic/thermal solar heater ...

Our study was carried out to a better understanding of the phenomena governing Rf glow discharge plasmas used for the deposition of amorphous silicon thin films by sputtering technique. The optical emission spectroscopy ...

This work is focused on preparation and characterization of thin layers of titanium oxide (TiO2) undoped and doped with heavy elements such as mercury, lead and zinc prepared by sol-gel method and deposited on various ...