University of Jaén

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    Una familia de arquitecto giennenses: los Aranda

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    Han sido muchas las elucubraciones, más o menos fundadas, sobre los orígenes del arquitecto Juan de Aranda Salazar (1605- 1654) y su familia. A la vista de un documento y una serie de obras, creo que ya es posible establecer su origen y ascendencia, nítidamente giennense, y el aclarar el parentesco de los miembros de la familia Martínez de Aranda, de especial importancia por lo que respecta al nombre de Ginés Martínez de Aranda, ya que hubo tres con ese mismo nombre en sucesivas generaciones. El Informe Genealógico que solicitó el Tribunal de la Inquisición de Córdoba en 1626 acerca de Juan de Aranda Salazar, pretendiente a la sazón del cargo de Familiar del mismo por el lugar de Torrecabrera (Córdoba) — donde por entonces trabajaba— es el documento que nos ha permitido delimitar todas las cuestiones antes suscitadas

    Ventura Rodríguez en Jaén

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    Cuando tras el terremoto de 1755 el resquebrajamiento de una parte de la Catedral, allí donde estaba delineada la fábrica del Sagrario (ángulo NE.), aceleró la construcción de éste, se encargaba su proyecto al arquitecto más oficial del país: Ventura Rodríguez. Con él comenzaba a desterrarse lo que Ponz, en su Viaje, denominaba "las tinieblas del mal gusto", instando precisamente a Iglesias, Catedrales y Ayuntamientos a adoptar el "pensamiento" real de 11asalariar Maestros Habiles de arquitectura, de los que esa Real Academia vaya criando, y que se extiendan por todas las provincias"

    "Más allá de un vaso". Espacios etnificados y discursos culturales sobre el consumo de alcohol entre los ecuatorianos de Génova

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    Este trabajo analiza, desde una perspectiva socio-antropológica, el papel que adquieren algunos patrones de consumo de alcohol entre la comunidad ecuatoriana en Génova, Italia. La práctica del consumo de alcohol, en contextos homosociales de migración y asociada a actividades deportivas, está (re)significada bajo parámetros culturales instituidos como “ritualidad alcohólica de la masculinidad”. Alejándonos de un enfoque de patologización del consumo, y adentrándonos en el estudio de las “culturas del alcohol”, migración y consumo, exploramos sobre los significados del tomar ecuatorianizado en tres escenarios de identidad cultural en tanto que estrategias de territorialización. This paper analyses, from a socio-anthropological perspective, the role of some alcohol consumption patterns among the Ecuadorian community in Genova, Italy. The practice of alcohol consumption, in homosocial contexts of migration and associated with sporting activities, is (re)signified under cultural parameters instituted as "alcoholic rituality of masculinity". Moving away from a pathologisation approach to consumption, and moving into the study of "alcohol cultures", migration and consumption, we explore the meanings of ecuadorianised drinking in three scenarios of cultural identity as strategies of territorialisation

    Formación y Orientación Laboral (FOL) en la Formación Profesional (FP). Actitud del alumnado hacia el Módulo.

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    Esta investigación, pretende avanzar en el estudio de la FP en General y de FOL, en particular, aportando como innovación, la búsqueda de las causas del escaso reconocimiento que tiene este Módulo Transversal y, sobre todo, la actitud general hacia el estudio del alumnado, como enfoca su aprendizaje y las metas en la vida que persigue. El objetivo general es conocer la motivación y actitud del alumnado hacia los estudios de FP y comprobar la importancia que otorgan al Módulo de FOL. El estudio se ha desarrollado con una muestra de 502 sujetos que cursan FP en las Comunidades Autónomas de Andalucía, Asturias, Castilla-la Mancha, Castilla-León, Madrid, País Vasco, y Valencia. Se han considerado determinantes las variables sexo, etapa evolutiva (adolescentes y jóvenes) y algunas características personales. En la recogida de los datos se utilizaron tres instrumentos de medida. This research aims to make progress in the study of VET in general and FOL in particular, by contributing, as an innovation, the search for the causes of the lack of recognition of this Transversal Module and, above all, the general attitude towards the study of students, how they approach their learning and the goals they pursue in life. The general objective is to find out students' motivation and attitude towards VET studies and to check the importance they attach to the FOL module. The study was carried out with a sample of 502 subjects studying vocational training in the Autonomous Communities of Andalusia, Asturias, Castilla-la Mancha, Castilla-León, Madrid, the Basque Country and Valencia. The variables sex, developmental stage (adolescents and young people) and some personal characteristics were considered to be determining factors. Thre

    Biology and management of sarcoptic mange in wild Caprinae populations.

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    Sarcoptic mange is a cosmopolitan disease affecting the skin of domestic and wild mammalian species and humans as well. In Eurasia, sarcoptidosis (also known as sarcoptic mange or scabies) affects mountain ungulates (Caprinae) among other wild hosts, and epizootic outbreaks induce variable mortality rates. This fact, coupled with the important ecological and socio-economic values of such mammalian hosts, resulted in many research projects being focused on addressing ecological, physiological, behavioural, genetic, and pathological effects of the disease. Nevertheless, information about management of sarcoptic mange in free-ranging populations is scarce and scattered, with contradictory results and a lack of consensus on basic aspects of the disease. In this review, we summarise knowledge on the effects of sarcoptic mange in wild Caprinae, at individual, pathological and population epidemiological levels, as well as on the current tools and management strategies for its detection, diagnosis, prevention, and control. Disease spread in naïve populations is ca. 6 km year−1, and the mortality rate can be >95%. Tools for monitoring the disease include visual diagnosis, photographic traps, trained dogs, thermography, immunodiagnostics, molecular tools, radiocollars, and epidemiological modelling. Options for management include eradication, control, and prevention of the disease; biosecurity and prevention of spread to humans can be achieved by careful hygiene methods. Sarcoptic mange is a natural, biological factor controlling host population numbers and dynamics in Caprinae, so goals and strategies for its management in wild populations must be set accordingly. Specific management programmes for preventing and controlling sarcoptic mange in wild Caprinae populations must be based on reliable epidemiological data. More research is needed to provide evidence-based policies. The efficacy and safety of various management approaches remain to be tested experimentally.Ministerio de Economía y Competitividad (Gobierno de España), a través de los proyectos: CGL2012-40043-C02-01; CGL2012-40043-C02-02; y CGL2016-80543-P

    Is an exact backside irradiance modelling essential for bifacial PV systems?

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    Backside irradiance modelling for photovoltaic (PV) modules is not simple and straightforward as it highly depends on the situation of an actual system. In addition, the irradiance conditions can change from one side of a PV system to the other due to the reflections from the ground or surroundings. Currently, all available models are based on analytical methods. Here, we present a new empirical model for backside irradiance for fixed PV systems modelled by a Gaussian function on the backside irradiance share and compare the results with an analytical model. Furthermore, we have applied different backside irradiance calculations to a PV performance rating model and compared the results. Our calculations, verified with the data from three different locations in Europe, have shown that for common PV systems, where the backside irradiance share is relatively low, annual PV performance calculations can be performed with a fixed backside irradiance share value.The Authors acknowledge the financial support of the Slovenian Research Agency (Research Programme P2-0415). This work has been possible also thanks to the project “Demo_BI-FV: Development of Advanced Models for the characterization of bifacial photovoltaic systems (PID2021-124161OB-I00)” funded by the Spanish Ministry of Science and the State Innovation Agency within the European Regional Development Fund (MCIN/AEI/10.13039/501100011033/FEDER, UE)

    Enhanced thermal models of photovoltaic modules by electrical operating conditions dependency

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    The increasing penetration of photovoltaic (PV) systems poses challenges to the reliability and adequacy of power systems. To support grid stability, PV systems must evolve to be capable of providing frequency regulation and reserve services—including not only down frequency reserve but also up reserve. This latter service requires PV modules to operate away from their maximum power point (MPP), a condition that requires an enhancement in PV module thermal behavior assessment. Consequently, there is a growing need for advanced thermal models that account for electrical operating conditions to ensure accurate temperature prediction under all operating scenarios. While traditional thermal models primarily depend on meteorological inputs, they typically neglect the Electrical Operating Status (EOS). Overlooking this issue can lead to significant prediction errors—up to 5–7 ◦C—especially during operation away from MPP. The proposed investigation developed an enhanced thermal model incorporating EOS dependency by including the ratio of measured current to the calculated current at MPP as an additional input. Two cases of the Faiman and Sandia models were optimized using Genetic Algorithm, Particle Swarm Optimization, non-linear least squares, and polynomial regression. Optimization is performed using three identical PV systems operating under reference EOS conditions: open circuit, short circuit, and MPP. Results demonstrate that EOS-integrated models significantly improve temperature prediction accuracy. The EOS sensitive models achieved prediction errors as low as 0.1–1.13 % and R2 values above 0.91, outperforming traditional models that exhibited errors from 2 to 29 %. These findings support the need for EOSaware thermal modelling in modern PV system design and operationThis work has been supported by the Italian National Ph.D. in Photovoltaics, CURRICULUM C: Monitoring and Diagnosis has been received (CUP: D42B22001610006). Also, supported by MUR, Italy funds in the frame of PRIN 2020 “A Holistic Monitoring and Diagnostic Tool for Photovoltaic Generators (HOTSPHOT)” project (CUP: E63C2001116000) and Grant TED2021-131137B-I00 “Aportaci´on a la Transici´on Ecol´ogica en el sector Industrial a trav´es del Autoconsumo Fotovoltaico” funded by MICIU/AEI/10.13039/501100011033 and European Union Next Generation EU/PRTR

    InGaN Photovoltaic Converters: Processing Approaches for High-Power Optical Transmission

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    This work explores the processing of InGaN semiconductors as high-power optical transmission (HPOT) photovoltaic converters (OPCs). Current HPOT systems present limitations in efficiency and power density, primarily due to materials with low band gaps, such as GaAs, with significant losses at high irradiances due to series resistance issues. InGaN offers a promising alternative for overcoming these limitations. However, there is a lack of studies and experimental results about this material for HPOT. This work reviews the state-of-the-art in OPCs, highlighting the potential of InGaN to outperform conventional technologies. Growth techniques, doping strategies and fabrication methods of InGaN-based OPCs are investigated. The work examines Molecular Beam Epitaxy (MBE) and Metalorganic Vapor Phase Epitaxy (MOVPE) as growth techniques, emphasizing the advantages of MBE, particularly when combined with metal modulated epitaxy (MME), for producing high-quality InGaN films. The challenges associated with p-type doping in InGaN and the methods to address them are discussed. Furthermore, the study analyses crucial steps including wafer and substrate preparation, metallic contact formation, anti-reflective coating deposition and cutting. Novel advancements that improve control and precision and enhance device performance are presented. Additionally, a flowchart for InGaN-based OPCs fabrication is proposed, prioritizing high efficiency and power density conversion. This guides the process from substrate preparation to the final device, incorporating techniques like MME growth, GaN substrates with buffer layers and stealth dicing. This research aims to advance understanding and development of InGaN semiconductors for HPOT, addressing limitations and exploring the technology’s potential to revolutionize power transmission in the 21st century

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