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 ...

Nicotiana glauca Graham (Solanaceae), or tree tobacco, is found in dry arid climates of North America, Africa and Europe. It has been reported to have both toxic and medicinal properties. The main aim of this study was ...

Our study focuses on the prevention of the scale deposits formation in Bounouara hard waters, having a hardness of 60°f by two environmentally compatible methods: by using natural inhibitors and by controlled electrodeposition ...

The investigation of the corrosion inhibition of X60 steel and 2017A aluminium in 1 M hydrochloric acid medium by aqueous (EA) and ethanolic (EE) extracts of Nigella sativa L. seeds, Punica granatum fruit peel and ...

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 ...

Artificial neural networks (ANN) are universal approximators that allow to express the correlation between input data and output data. Learning by ANN is based on the adaptation of the free parameters of the network by ...

This work was carried out at the Laboratory of Analytical Physicochemistry and Crystallochemistry of Organometallic and Biomolecular Materials of the Department of Chemistry at the University brothers Mentouri-Constantine-1; ...

Image analysis and computer vision play a crucial role in many real-world applications such as smart agriculture and smart vehicles. For plant diseases diagnosis, one of the most recent challenges is the improvement of the ...

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 study of a link between two variables was and still a challenge for a lot of researchers in many fields of application and as in many of these fields appear functional data, we find many works have been devoted in this ...