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Mostrando ítems 21-30 de 69
Artículo
Intersection of crisis loci in a driven nonlinearly damped oscillator
(Elsevier, 1995)
We report on a phenomenon observed in a driven nonlinearly damped oscillator when two control parameters, the frequency of the external excitation and the nonlinear damping coefficient, are varied simultaneously. An interior ...
Artículo
U and Th speciation in river sediments
(Elsevier, 1995)
A study of the distribution of some natural radionuclides in different chemical fractions of river bottom sediments has been carried out. The study has shown that the majority of the total U in sediments is located in the ...
Artículo
Uranium and thorium concentrations in an estuary affected by phosphate fertilizer processing: Experimental results and a modelling study
(Elsevier, 1997)
The Odiel river, in southwest Spain, forms an estuarine system which is affected by waste disposal from a fertilizer complex. Uranium and thorium concentrations in waters and suspended matter, activity ratios and distribution ...
Ponencia
Artículo
Diffusion in a class of exactly solvable non-harmonic potentials. Intrinsic effects induced by non-linearities
(Elsevier, 1990)
This paper deals with the problem of a particle that diffuses in a potential with a reflecting barrier and has a point of stable equilibrium and a point of unstable equilibrium. Based on the exact solutions obtained earlier ...
Capítulo de Libro
Estudio elemental del ojo humano mediante demostraciones en el aula.
(Universidad de Málaga, Área de conocimiento de Didáctica de las Ciencias Experimentales, 1998)
Artículo
Low-level radioactivity studies in the marine environment of the South of Spain
(Elsevier, 1992)
In this paper preliminary levels of natural and man-made radionuclides in the South Spanish marine environment are presented. Local man-made sources are found to be the main contributors to the natural environmental ...
Ponencia
Software de dominio público: una alternativa de coste cero para la docencia
(Universidad de Las Palmas de Gran Canaria, Servicio de publicaciones y producción documental, 1998)
En la actualidad, la necesidad de la utilización de los ordenadores como soporte fundamental para la docencia se ha hecho evidente. Ello se debe tanto a la implantación de estas máquinas en entorno empresarial ...
Artículo
U- and Th-isotopes in an estuarine system in southwest Spain: Tidal and seasonal variations
(Elsevier, 1996)
The presence of U- and Th-isotopes in suspended matter from an estuarine system which surrounds a phosphate fertilizer processing complex has been investigated. A clear radioactive impact from the complex has been confirmed ...
Tesis Doctoral
Fenómenos dinámicos en modelos sencillos controlados por barreras entrópicas
(1997)
La organización de esta Memoria es la siguiente. En el Capítulo 2 presentamos una revisión somera de las principales propiedades que se utilizan para caracterizar un vidrio estructural a nivel macroscópico. Asimismo ...