Characterization and frequency analysis of flooding solid flow in semi-arid zone: case of Mekerra catchment in the north-west of Algeria

Autor: M. Diaf, A. Hazzab, A. Yahiaoui, A. Belkendil

Publikováno v: Applied Water Science, Vol 10, Iss 2, Pp 1-15 (2020)

Abstract In this study, we evaluate the soil erosion and solid transport in the oued Mekerra watershed in north-west Algeria. The study area is subject to a semi-arid climate characterized by irregular rainfall and showers, which are often accompanie

Externí odkaz: https://doaj.org/article/1307fb09566c46e8b18b1ede4c563e34

SPECTROSCOPIC PROPRIETIES OF CRYSTALS MF2 (M=Cd, Sr, Ba) DOPED TO RARE EARTH IONS

Autor: M. Diaf, S. Khiari, K. Labbaci, L. Guerbous, J. P. Jouart

Publikováno v: Journal of Fundamental and Applied Sciences, Vol 4, Iss 1, Pp 25-31 (2015)

In the present work, we are interested by studying the spectroscopic properties for optical applications, mainly laser amplification, of MF2 crystals, where M is an alkaline earth (Ba, Sr) or Cadmium (Cd) doped with rare earth ions (Tb3+, Er3+, Ho3+)

Externí odkaz: https://doaj.org/article/a80b92d4f43b4c4aae98ca66de2a8539

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Spectroscopic characterization by up conversion of Ho3+/Yb3+ codoped CdF2 single crystal

Autor: Hamid Satha, Jean-Pierre Jouart, Daniel Zambon, Rachid Mahiou, Sabrina Bordj, Anthony Barros, M. Diaf

Publikováno v: Optical Materials
Optical Materials, Elsevier, 2021, 118, pp.111249. ⟨10.1016/j.optmat.2021.111249⟩
Optical Materials, 2021, 118, pp.111249. ⟨10.1016/j.optmat.2021.111249⟩

Single crystal of CdF2 codoped with the couple Ho3+/Yb3+ with good optical quality were grown by a Bridgman technique after purification of the starting materials. Emission spectra are recorded at room temperature under UV and NIR excitation. The kin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9c0027c7522780dc612ffbd0fefbd06
https://hal.archives-ouvertes.fr/hal-03252926