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Mostrando ítems 11-20 de 65
Artículo
Exploring the potentials of the multi-modal equivalent circuit approach for stacks of 2-D aperture arrays
(IEEE Computer Society, 2021)
Many frequency-selective surface (FSS) structures are based on the use of a single periodic array of slot/apertures in a conducting sheet embedded in a layered medium. However, it is well known that stacking several ...
Artículo
Occupational dosimetric assessment (inhalation pathway) from the application of phosphogypsum in agriculture in South West Spain
(Elsevier, 2009)
Phosphogypsum (PG) has been traditionally applied as Ca-amendment in saline marsh soils in SW Spain, where available PG has 710 ± 40 Bq kg−1 of 226Ra. This work assesses the potential radiological risk for farmers through ...
Artículo
Solitary wave billiards
(American Physical Society, 2023-03)
In the present work we explore the concept of solitary wave billiards. That is, instead of a point particle, we examine a solitary wave in an enclosed region and examine its collision with the boundaries and the resulting ...
Artículo
Implications for food safety of the uptake by tomato of 25 trace-elements from a phosphogypsum amended soil from SW Spain
(Elsevier, 2014)
Phosphogypsum (PG) has been usually applied as Ca-amendment to reclaim sodic soils such as those in the marshland area of Lebrija (SW Spain). This work aimed at the effects of PG amendments on the uptake of trace-elements ...
Artículo
A modelling study on 137Cs and 239,240Pu behaviour in the Alborán Sea, western Mediterranean
(Elsevier, 2008)
A model for simulating the dispersion processes of 137Cs and 239,240Pu in the Alborán Sea is described. The model consists of two hydrodynamic models: a 2D depth-averaged model and a two-layer model which provide tidal and ...
Artículo
Unlocking Complexity Using the ECA: The Equivalent Circuit Model as An Efficient and Physically Insightful Tool for Microwave Engineering
(IEEE Computer Society, 2018)
In the study of electromagnetic wave propagation and scattering, researchers have always faced the dichotomy of dealing directly with Maxwell's equations (and their complicated analytical/numerical solution methods) or ...
Artículo
Estimating the impact from Fukushima in Southern Spain by I-131 and Accelerator Mass Spectrometry detection of I-129
(ScienceDirect, 2017-01)
After the Fukushima accident, large amounts of radionuclides were discharged to the atmosphere. Some of them travelled long distances and were detected in places as far from Japan as Spain a few days after the accident. ...
Artículo
Influence of releases of 129I and 137Cs from European reprocessing facilities in Fucus vesiculosus and seawater from the Kattegat and Skagerrak areas
(ScienceDirect, 2014-08)
129I is a very long-lived radionuclide (T1/2 = 15.7 × 106 years) that is present in the environment because of natural and anthropogenic sources. Compared to the pre-nuclear era, large amounts of 129I have been released ...
Artículo
Cultural heritage science at CNA (seville, Spain): Applications of XRF and IBA techniques to art and archaeological objects
(Elsevier, 2020)
The use of nuclear analytical techniques has experienced an extraordinary growth in recent decades in the field of cultural heritage. Nowadays, their use in the study of objects of interest in heritage has become essential. ...
Artículo
Growth of nanocolumnar porous TiO2 thin films by magnetron sputtering using particle collimators
(Elsevier, 2018)
The selective incorporation of deposition species with preferential directionality is analyzed during the growth of TiO2 thin films by magnetron sputtering. Using wisely-designed collimators, tilted nanocolumnar morphol- ogies ...