Results 71 to 80 of about 21,281 (215)
Structural and Electrical Studies for Birnessite-Type Materials Synthesized by Solid-State Reactions
Nanomaterials, 2019 The focus of this paper is centered on the thermal reduction of KMnO4 at controlled temperatures of 400 and 800 °C. The materials under study were characterized by atomic absorption spectroscopy, thermogravimetric analysis, average oxidation state ...
Nayda P. Arias +2 more
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Annals of Geophysics, 2007 It is argued that the Plio-Quaternary deformation pattern in the Mediterranean region is compatible with a SSWNNE convergence between Africa (Nubia) and Eurasia and that the significant difference between this kinematics and the one provided by
D. Albarello +3 more
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La interacción entre egipcios y nubios a finales del Reino Medio: del topos a la vida cotidiana
El Futuro del Pasado, 2011 Una de las constantes en la iconografía egipcia de todos los periodos es la visión que los egipcios tenían del mundo que les rodeaba, y, sobre todo, de las gentes que lo habitaban. Dentro de esta visión, hay dos versiones radicalmente distintas.
Javier González-Tablas Nieto
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GelsThe tanning industry is among the most environmentally harmful activities globally due to the pollution of lakes and rivers from its effluents. Hexavalent chromium, a metal in tannery effluents, has adverse effects on human health and ecosystems ...
Mayra X. Muñoz-Martinez +2 more
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Journal of Marine Science and EngineeringPre-Cenomanian Nubia sandstone is recognized one of the most prolific reservoirs in the Gulf of Suez, Egypt. Accurately determining its reservoir rock type (RRT) is crucial for reservoir characterization and modeling, especially when the reservoir is ...
Mohamed S. El Sharawy
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Results in EngineeringAmmonium chloride (NH₄Cl) is widely used in agriculture, medicine, and flame-retardant applications, yet solubility data in mixed solvents remain limited for process design.
Miguel-Ángel Gómez-García +2 more
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