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Ligand-rare-earth ion energy transfer in coordination compounds. A theoretical approach
(Elsevier B.V., 1997-04-01)
A theoretical approach to the energy transfer process that occurs between a ligand and a rare-earth ion in luminescent complexes is presented. A discussion on the energy transfer mechanisms involved and on the associated ...
Precipitation of rare earth phosphates from H3PO4 solutions
(Gordon Breach Sci Publ Ltd, 1996-01-01)
A study of several factors has been carried out in order to determine their influence on rare earth phosphates precipitation from H3PO4 solutions obtained after the treatment of the Kola phosphate rock.
Ligand-rare-earth ion energy transfer in coordination compounds. A theoretical approach
(Elsevier B.V., 1997-04-01)
A theoretical approach to the energy transfer process that occurs between a ligand and a rare-earth ion in luminescent complexes is presented. A discussion on the energy transfer mechanisms involved and on the associated ...
Preface: Unsolved problems of magnetospheric physics
(Blackwell Publishing Ltd, 2016)
©2016. American Geophysical Union. All Rights Reserved. The Unsolved Problems of Magnetospheric Physics Workshop was held in September 2015 in Scarborough, UK. In contrast to most other meetings, people were specifically ...
( Altitude zoning of the vegetation of the Cautin volcanoes, Chile)
(1981)
The mountainous stage (below 700-800 m) is dominant, containing Nothofagus and Myrtaceae. In the subandine stage (800-1500 m) N. dombeyi forest is predominant, accompanied by some Podocarpus on the southern volcano. Between ...
Ciencias de la Tierra
(Universidad de Belgrano. Programas de las Materias - Facultad de Ciencias Exactas y Naturales - Carrera de Ciencias Biológicas, Plan 2012)
OBJETIVOS:
OBJETIVOS GENERALES
• El objetivo principal de esta asignatura es proporcionar a los alumnos las herramientas teórico-prácticas necesarias para conocer al sistema que los rodea, tanto el sistema atmosférico, ...
Coping with environmental challenges in Latin America
(Elsevier B.V., 2018)
Derivative spectrophotometric method for copper determination
(Kluwer Academic Publishers, 1995)
A simple, sensitive and selective method by solvent extraction-first derivative spectrophotometry is described for the determination of microamounts of copper in water by means of its reaction and extraction at pH 8.0 with ...