Catalunya y la estructura militar de la Monarquía Hispánica en tiempos de Felipe II: elvirreinato del prior Don Hernando de Toledo (1571-1579)

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Limestone calcination under calcium-looping conditions for CO2 capture and thermochemical energy storage in the presence of H2O: An in situ XRD analysis

This work reports an in situ XRD analysis of whether the calcination/carbonation behavior of natural limestone (CaCO3) is affected by the addition of H2O to the calciner at a very low concentration under relevant Calcium-Looping (CaL) conditions for CO2 capture in coal fired power plants (CFPP) and Thermochemical Energy Storage (TCES) in Concentrated Solar Power plants (CSP). Previous studies have demonstrated that the presence of steam in the calciner at a high concentration yields a significant increase in the reaction rate. However, a further undesired consequence is the serious deterioration of the CaO mechanical strength, which would lead to particle attrition and mass loss in any CaL process based on the use of circulating fluidized beds. The results presented in this manuscript on the time evolution of the wt% and crystallite size of the phases involved in the calcination/carbonation reactions indicate that the calcination rate is still notably increased by the presence of H2O at very low concentrations whereas the reactivity toward carbonation and crystal structure of the formed CaO are not essentially affected, which suggests that the CaO mechanical strength is not impaired. Thus, the benefit of using steam for calcination in the CaL process could be still retained while at the same time particle attrition would not be promoted.Ministerio de Economia y Competitividad CTQ2014-52763-C2-2-

Wooden-based materials: Eco-friendly materials for direct mass spectrometric analysis and microextraction

Lignocellulosic materials have arisen as a sustainable alternative in microextraction techniques during the last 10 years. As they are natural materials, their use fits into some of the principles of Green Analytical Chemistry. Their inherent porosity, narrow shape, and rigidity permit their use in ambient ionization mass spectrometry techniques. In particular, the combination of wooden-based materials and direct analysis gives birth to the so-called wooden-tip electrospray ionization mass spectrometry technique. This approach has been used for the direct analysis of complex samples, and as a streamlined tool for fingerprint quality analysis. Also, wooden-based materials can be superficially modified to boost the interaction with target compounds, allowing their isolation from complex samples. This review describes the potential and applicability of direct analysis using lignocellulosic materials, as well as other alternatives related to their use in microextraction

Studies on cup anemometer performances carried out at IDR/UPM Institute. Past and present research

In the present work, the research derived from a wide experience on cup anemometer calibration works at IDR/UPM Institute (Instituto Universitario de microgravedad “Ignacio Da Riva”)is summarized. This research started in 2008, analyzing large series of calibrations, and is focused on two main aspects: (1) developing a procedure to predict the degradation level of these wind sensors when working on the field and (2) modeling cup anemometer performances. The wear and tear level of this sensor is evaluated studying the output signal and its main frequencies through Fourier analysis. The modeling of the cup anemometer performances is carried out analyzing first the cup aerodynamics. As a result of this process, carried out through several testing and analytical studies since 2010, a new analytical method has been developed. This methodology might represent an alternative to the classic approach used in the present standards of practice such as IEC 64000-12

SEDOPTICA newsletter: noticias de SEDOPTICA

El boletín de noticias de SEDOPTICA recoge la actividad de la sociedad y sus miembros en el tercer trimestre del año 2019.Peer ReviewedPostprint (published version

SEDOPTICA newsletter: noticias de SEDOPTICA

Primer boletín de SEDOPTICA del año 2019 que recoge la intensa actividad de la sociedad y sus miembros en el primer trimestre.Peer ReviewedPostprint (published version

SEDOPTICA newsletter: noticias de SEDOPTICA

El boletín de noticias de SEDOPTICA recoge la actividad de la sociedad y de sus miembros en el cuarto y último trimestre del año 2019.Peer ReviewedPostprint (published version

SEDOPTICA newsletter: noticias de SEDOPTICA

El boletín de noticias de SEDOPTICA recoge la actividad de la sociedad y sus miembros en el segundo trimestre de 2019.Peer ReviewedPostprint (published version