Evaluation of the economic and environmental performance of low-temperature heat to power conversion using a reverse electrodialysis - Multi-effect distillation system

In the examined heat engine, reverse electrodialysis (RED) is used to generate electricity from the salinity difference between two artificial solutions. The salinity gradient is restored through a multi-effect distillation system (MED) powered by low-temperature waste heat at 100 ◦C. The current work presents the first comprehensive economic and environmental analysis of this advanced concept, when varying the number of MED effects, the system sizing, the salt of the solutions, and other key parameters. The levelized cost of electricity (LCOE) has been calculated, showing that competitive solutions can be reached only when the system is at least medium to large scale. The lowest LCOE, at about 0.03 €/kWh, is achieved using potassium acetate salt and six MED effects while reheating the solutions. A similar analysis has been conducted when using the system in energy storage mode, where the two regenerated solutions are stored in reservoir tanks and the RED is operating for a few hours per day, supplying valuable peak power, resulting in a LCOE just below 0.10 €/kWh. A life-cycle assessment has been also carried out, showing that the case with the lowest environmental impact is the same as the one with the most attractive economic performance. Results indicate that the material manufacturing has the main impact; primarily the metallic parts of the MED. Overall, this study highlights the development efforts required in terms of both membrane performance and cost reduction, in order to make this technology cost effective in the future

Semi-supervised source extraction methodology for the nosological imaging of glioblastoma response to therapy.

Glioblastomas are one the most aggressive brain tumors. Their usual bad prognosis is due to the heterogeneity of their response to treatment and the lack of early and robust biomarkers to decide whether the tumor is responding to therapy. In this work, we propose the use of a semi-supervised methodology for source extraction to identify the sources representing tumor response to therapy, untreated/unresponsive tumor, and normal brain; and create nosological images of the response to therapy based on those sources. Fourteen mice were used to calculate the sources, and an independent test set of eight mice was used to further evaluate the proposed approach. The preliminary results obtained indicate that was possible to discriminate response and untreated/unresponsive areas of the tumor, and that the color-coded images allowed convenient tracking of response, especially throughout the course of therapy

Los suelos de la provincia de Granada y su posible incidencia en la fertilidad del olivo. IV. Suelos rojos mediterráneos

Los suelos con matiz rojo, dedicados al cultivo del olivo en la provincia de Granada, se caracterizan en términos generales por su buen rendimiento, lo que se justifica en razón a su estructura, granulometría y posición fisiográfica.In this paper we have printed out that the red soils of the Province of Granada, which are dedicated to the culture of the olive-tree, are characterized by a high productiveness which is due to their structure, granulometric composition and phisiograph

IAPT chromosome data 28

[EN] Veronica angustifolia (Vahl) Bernh.; Veronica austriaca subsp. jacquinii (Baumg.) Watzl; Veronica dalmatica N.Pad.Gar., Rojas-Andrés, López-González & M.M.Mart.Ort.; Veronica kindlii Adam.; Veronica orsiniana Ten.; Veronica prostrata L.; Veronica rosea Desf.; Veronica sennenii (Pau) M.M.Mart.Ort. & E.Rico; Veronica tenuifolia subsp. javalambrensis (Pau) Molero & J.Pujadas; Veronic tenuifolia Asso subsp. tenuifolia; Veronica teucrium L.; Veronica thracica Velen.. In: K. Marhold & J. Kucera, IAPT chromosome data 28

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Los suelos con matiz rojo, dedicados al cultivo del olivo en la provincia de Granada, se caracterizan en términos generales por su buen rendimiento, lo que se justifica en razón a su estructura, granulometría y posición fisiográfica.In this paper we have printed out that the red soils of the Province of Granada, which are dedicated to the culture of the olive-tree, are characterized by a high productiveness which is due to their structure, granulometric composition and phisiography

Evaluación de suelos del sur de Teba (Málaga) para el cultivo de leguminosas

Se valora la aptitud de las tipologías de suelos más representativas de la zona para el cultivo de leguminosas. Paraello se analizan previamente parámetros físicos, físico-químicos y químicos de los suelos y propiedades extrínsecascomo el clima o la topografía. Observamos las limitaciones que presentan para estos cultivos, las diferentes tipologíasde suelos estudiadas en función de características climáticas, topográficas, edáficas y analíticas

Wave farm effects on the coast: The alongshore position

publisher: Elsevier articletitle: Wave farm effects on the coast: The alongshore position journaltitle: Science of The Total Environment articlelink: https://doi.org/10.1016/j.scitotenv.2018.05.281 content_type: article copyright: © 2018 Elsevier B.V. All rights reserved

Análisis de la actividad científica de la Comunidad Autónoma de la Región de Murcia. Biomedicina 1999-2005.

An analysis of scientific activity in Biomedicine in Murcia between 1999-2005 is presented

The dependence of oxygen and nitrogen abundances on stellar mass from the CALIFA survey

We analysed the optical spectra of HII regions extracted from a sample of 350 galaxies of the CALIFA survey. We calculated total O/H abundances and, for the first time, N/O ratios using the semi-empirical routine HII-CHI-mistry, which, according to P\'erez-Montero (2014), is consistent with the direct method and reduces the uncertainty in the O/H derivation using [NII] lines owing to the dispersion in the O/H-N/O relation. Then we performed linear fittings to the abundances as a function of the de-projected galactocentric distances. The analysis of the radial distribution both for O/H and N/O in the non-interacting galaxies reveals that both average slopes are negative, but a non-negligible fraction of objects have a flat or even a positive gradient (at least 10\% for O/H and 4\% for N/O). The slopes normalised to the effective radius appear to have a slight dependence on the total stellar mass and the morphological type, as late low-mass objects tend to have flatter slopes. No clear relation is found, however, to explain the presence of inverted gradients in this sample, and there is no dependence between the average slopes and the presence of a bar. The relation between the resulting O/H and N/O linear fittings at the effective radius is much tighter (correlation coefficient $\rho_s$ = 0.80) than between O/H and N/O slopes ($\rho_s$ = 0.39) or for O/H and N/O in the individual \hii\ regions ($\rho_s$ = 0.37). These O/H and N/O values at the effective radius also correlate very tightly (less than 0.03 dex of dispersion) with total luminosity and stellar mass. The relation with other integrated properties, such as star formation rate, colour, or morphology, can be understood only in light of the found relation with mass.Comment: Accepted for publication in A&A. 20 pages, 19 figure