53 research outputs found
Enhancement of Refrigeration Capacity and Table-Like Magnetocaloric Effect in LaFe 10.7Co 0.8Si 1.5/ La 0.6Pr 0.4Fe 10.7Co 0.8Si 1.5 Composite
Magnetocaloric effect and its implementation in critical behaviour study of La0.67Ca0.33Mn0.9Fe0.1O3
Enhanced Refrigerant Capacity and Magnetic Entropy Nearly Flattening in (La 2 / 3 Ba 1 / 3 MnO 3 ) 1 â x / (La 2 / 3 Ba 1 / 3 MnO 2 . 9 8 ) x Composite
Investigation of magnetic and transport properties of PrCa(MnCo)O prepared by solid state process
3D-Ising ferromagnetic characteristics and magnetocaloric study in Pr0.4Eu0.2Sr0.4MnO3 manganite
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Field dependence of magnetocaloric properties of 20% Cr-doped Pr0.7Ca0.3MnO3 perovskite
International audienc
Electrical conductivity analysis and magnetic properties of Pr0.7Ca0.3Mn0.95Co0.05O3 oxide
Groundwater salinity in a semi-arid region of central-eastern Tunisia: insights from multivariate statistical techniques and geostatistical modelling
This study aims to investigate the hydrochemical behaviour of a shallow aquifer of a semi-arid environment in central-eastern Tunisia. It is based on a combined approach of multivariate statistical tools and a geostatistical analysis. The analysis of 49 groundwater samples underlined the heterogeneity between water classes. The factor analysis and the analysis of principal components highlighted that the deterioration of the groundwater quality results essentially from natural factors, such as rock weathering, and marginally from associated anthropogenic factors, in most cases, with artificial groundwater recharge from water irrigation at the soil surface. The natural factors are clearly associated with chloride, sodium and sulphate, and they are responsible for the water quality class with a salinity higher than 6 g/L. The anthropogenic factors are characterized by calcium and potassium ions. Based on the variograms obtained for the vector of both factors, their spatial interpolation by kriging showed that the high values of vector 1 (the natural factors) were recorded near the sabkha Sidi El Hani, indicating a rock-water interaction. However, vector 2 is high in the central part of the Ouled Chamekh plain, likely due to the water irrigation of agricultural soil
Effects of partial Mn-substitution on magnetic and magnetocaloric properties in Pr0.7Ca0.3Mn0.95X0.05O3 (Cr, Ni, Co and Fe) manganites
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