Performance of a transmutation advanced device for sustainable energy application

Preliminary studies have been performed to design a device for nuclear waste transmutation and hydrogen generation based on a gas-cooled pebble bed accelerator driven system, TADSEA (Transmutation Advanced Device for Sustainable Energy Application). In previous studies we have addressed the viability of an ADS Transmutation device that uses as fuel wastes from the existing LWR power plants, encapsulated in graphite in the form of pebble beds, cooled by helium which enables high temperatures (in the order of 1200 K), to generate hydrogen from water either by high temperature electrolysis or by thermochemical cycles. For designing this device several configurations were studied, including several reflectors thickness, to achieve the desired parameters, the transmutation of nuclear waste and the production of 100 MW of thermal power. In this paper new studies performed on deep burn in-core fuel management strategy for LWR waste are presented. The fuel cycle on TADSEA device has been analyzed based on both: driven and transmutation fuel that had been proposed by the General Atomic design of a gas turbine-modular helium reactor. The transmutation results of the three fuel management strategies, using driven, transmutation and standard LWR spent fuel were compared, and several parameters describing the neutron performance of TADSEA nuclear core as the fuel and moderator temperature reactivity coefficients and transmutation chain, are also presente

Effect of potential formation on the electrochemical behaviour of a highly-alloyed austenitic stainless steel in contaminated phosphoric acid at different temperatures

The electrochemical behaviour of the highly alloyed austenitic stainless steel UNS N08031 (Alloy 31) in a contaminated phosphoric acid solution is studied using potentiodynamic curves, EIS and Mott–Shottky. The relative stability of the films formed on Alloy 31 has been studied after a pre-passivated treatment at 0.3, 0.5, 0.8 and 1 VAg/AgCl, potentials within the passive domain. The protection of Alloy 31 was provided by the inner oxide film, while the outer film was more defective. The electronic-semiconducting properties of the passive films have been correlated to corrosion resistance. Passivated Alloy 31 at 0.8 VAg/AgCl showed lower concentration of charge carriers, which beneficially affects the protecting and electronic properties of the passive oxide film.The authors wish to express their gratitude to the MAEC of Spain (PCI Mediterraneo C/8196/07, C/018046/08, D/023608/09 and D/030177/10), to Programa de Apoyo a la Investigacion y Desarrollo de la UPV (PAID-06-09), to the Generalitat Valenciana (GV/2011/093) for the financial support and to Dra. Asuncion Jaime for her translation assistance.Escrivá Cerdán, C.; Blasco Tamarit, ME.; García García, DM.; García Antón, J.; Guenbour, A. (2012). Effect of potential formation on the electrochemical behaviour of a highly-alloyed austenitic stainless steel in contaminated phosphoric acid at different temperatures. Electrochimica Acta. 80:248-256. https://doi.org/10.1016/j.electacta.2012.07.012S2482568

GAM9: Gamificación de Asignaturas del Módulo 9 "Conocimientos y técnicas aplicadas a la comunicación publicitaria”

La gamificación consiste en la aplicación de conceptos que encontramos habitualmente en los juegos en general y en los videojuegos en concreto. Estos elementos son: reglas, retos progresivos con un camino definido para alcanzarlos, feedback continuo sobre la progresión, y compromiso por parte del jugador. Aunque el concepto es una herramienta muy utilizada en marketing, también se empieza a trasladar lo positivo de las mecánicas del juego a la docencia. Dado que gran parte del alumnado dedica su tiempo libre a los videojuegos, es de esperar que esta dinámica sea incluso más positiva que en otros campos. Gamificar una asignatura puede motivar al estudiante, guiarlo en el proceso de aprendizaje y fomentar una sana competitividad. Por esta razón, nos proponemos concretar para el curso 2014/15 propuestas de gamificación en tres asignaturas del grado en Publicidad y Relaciones Públicas, pertenecientes al módulo “Conocimientos y Técnicas aplicadas a la comunicación publicitaria” con el objetivo de motivar el aprendizaje de nuestro alumnado

Victimization and peer and parents attachment: The mediating effect of regulatory emotional self-efficacy

Studies of the Spanish adolescent population has concluded that victimization is related to lack of emotional regulation and impulse control. Therefore, if a victim is unable to recognize, understand and regulate their emotions, this can result in rejection by their peers. A cross-sectional study was conducted to examine regulatory emotional self-efficacy as a possible mediator in the association between peer and parents attachment and victimization. Adolescents (n = 563) completed Regulatory Emotional Self-Efficacy, Inventory of Parents and Peer Attachment and Kid at School questionnaires. Structural equation models (SEMs) were used to predict a latent variable of victimization with parents and peer attachment, emphasizing the mediating role of regulatory emotional self-efficacy, as comprised by a positive and a negative aspect. Results showed that peer attachment had an indirect negative effect, through perceived self-efficacy, in managing a positive effect in victimization, while father attachment had an indirect negative affect, through perceived self-efficacy, in managing a negative affect in victimization, and Mother attachment had no statistically significant indirect effect in victimization. This study suggests that the roles of parents and peers, and also between mothers and fathers, are different in relation to the perception of victimization of adolescents. Findings provide relevant information regarding implications for prevention and intervention in victimization

Temperature Effect on the Corrosion Behaviour of Alloy 31 in polluted H3PO4 and Analysis of the Corrosion Products by Laser Raman Microscope

[EN] Electrochemical behaviour of Alloy 31, a highly alloyed austenitic stainless steel (UNS N08031), in a 40 wt.% H3PO4 solution polluted with 2 wt.% H2SO4, 0.06 wt.% KCl and 0.6 wt.% HF was evaluated by cyclic potentiodinamic curves at different temperatures (20, 40, 60 and 80 degrees C). Temperature was found to favour both cathodic and anodic reactions. The corrosion products forming on the surface of Alloy 31 were indentified in situ by Laser Raman microscope. Corrosion products were mainly iron and chromium oxides, although phosphates were also included as a corrosion product on the surface of Alloy 31.Authors express their gratitude to the MAEC of Spain (PCI Mediterráneo C/8196/07, C/018046/08, D/023608/09 and D/030177/10), to Programa de Apoyo a la Investigación y Desarrollo de la UPV (PAID-06-09) and to the Generalitat Valenciana (GV/2011/093) for the financial support, to Ministerio de Ciencia e Innovación for its help in the Laser Raman Microscope acquisition (UPOV08-3E-012) and to Dra. Asunción Jaime for her translation assistance.Escrivá Cerdán, C.; Blasco-Tamarit, E.; García-García, D.; Garcia-Anton, J.; Ben-Bachir, A. (2012). Temperature Effect on the Corrosion Behaviour of Alloy 31 in polluted H3PO4 and Analysis of the Corrosion Products by Laser Raman Microscope. International Journal of Electrochemical Science. 7(7):5754-5764. http://hdl.handle.net/10251/61165S575457647

Effect of Welding on The Corrosion Behaviour of a Highly Alloyed Austenitic Stainless Steel UNS N06027 in Polluted Phosphoric Acid Media

[EN] The objective of this work is to study the effect of welding on the corrosion resistance of the austenitic stainless steel Alloy 59 (UNS N06027) as well as the galvanic corrosion generated by the base/weld pair estimated from the polarisation curves according to the mixed potential theory. The materials have been exposed to polluted phosphoric acid at several temperatures. The microstructure of the samples was studied by SEM and EDX analysis. The results show that the welding process shifts the corrosion potential values to more anodic potentials. The corrosion current densities and the passive current densities also increased by the effect of welding. This effect is aggravated with the increase in temperature. Open circuit potential values were located in the passive zone of the potentiodynamic curves, which means that the materials passivated spontaneously.The galvanic corrosion of the pair is not severe in the studied conditions. The ratio between the galvanic current density of the pair and the corrosion current density of the uncoupled anode is less than 5, which implies compatibility of the members in the couple.The authors acknowledge the Spanish Ministerio de Asuntos Exteriores y Cooperacion "MAEC" (PCI Mediterraneo C78196/07, D/023608/09, D/030177/10 and D/030177/10) for its financial support to the Krupp VDM Group (Germany) for the supplied alloys and to Dr. Asuncion Jaime for her translation assistance.Bakour, S.; Guenbour, A.; Bellaouchou, A.; Escrivá Cerdán, C.; Sánchez Tovar, R.; Leiva García, R.; Garcia-Anton, J. (2012). Effect of Welding on The Corrosion Behaviour of a Highly Alloyed Austenitic Stainless Steel UNS N06027 in Polluted Phosphoric Acid Media. International Journal of Electrochemical Science. 7(11):10530-10543. http://hdl.handle.net/10251/61163S105301054371

Experiencia piloto de uso de redes sociales como herramientas de blended learning en asignaturas de medios audiovisuales

El objetivo principal de esta investigación es explorar las posibilidades de las redes sociales como herramientas de blended learning en las asignaturas “Técnicas de Comunicación Audiovisual”, “Narrativa Audiovisual Aplicada a la Publicidad” y “Producción y Realización en Medios Audiovisuales” que se imparten en el Grado de Publicidad y Relaciones Públicas de la Universidad de Alicante. Por las posibilidades que ofrecen a nuestras asignaturas, hemos seleccionado Facebook, YouTube y Flickr. Flickr se ha utilizado como plataforma para entregar las fotografías realizados en la asignatura “Técnicas de Comunicación Audiovisual” durante el curso 2015-1016. Para “Narrativa Audiovisual Aplicada a la Publicidad” y “Producción y Realización en Medios Audiovisuales” se ha creado una página de Facebook y un canal de YouTube con el nombre de “Medios Audiovisuales UA”. Los enlaces para ambos recursos se encuentran publicados en Moodle, la plataforma utilizada para el trabajo online de las asignaturas. La finalidad de la página de Facebook es la de establecer un entorno informal de aprendizaje mientras que la de YouTube es la de ser un repositorio de los mejores trabajos realizados durante el transcurso de las asignaturas, que pueda servir de referencia para futuros estudiantes cuando deban enfrentarse a la realización de sus trabajos

La situación de la Historia de la Psicología en el currículo del psicólogo

Después de revisar diversos programas de la asignatura de Historia de la Psicología a partir de las páginas Web de 73 universidades españolas, presentamos un análisis de la asignatura en los planes de estudio actuales de la licenciatura de psicología. En la mayoría de universidades es una asignatura troncal, de Primer Ciclo y semestral, a excepción de algunos casos en los que es anual y de segundo ciclo. El número de créditos varía desde 4,5 a 9 créditos LRU y desde 4 a 9 créditos ECTS. La revisión temática de los diferentes programas completa el estudio. La aproximación a la situación actual de dicha asignatura nos sirve de punto de partida para justifi car su presencia en la futura propuesta de Grado en Psicología y su ubicación en el diseño de los planes de estudio según el Real Decreto para la regulación de las Enseñanzas Universitarias en el Espacio Europeo de Educación Superior

Application of gas-cooled Accelerator Driven System (ADS) transmutation devices to sustainable nuclear energy development

The conceptual design of a pebble bed gas-cooled transmutation device is shown with the aim to evaluate its potential for its deployment in the context of the sustainable nuclear energy development, which considers high temperature reactors for their operation in cogeneration mode, producing electricity, heat and Hydrogen. As differential characteristics our device operates in subcritical mode, driven by a neutron source activated by an accelerator that adds clear safety advantages and fuel flexibility opening the possibility to reduce the nuclear stockpile producing energy from actual LWR irradiated fuel with an efficiency of 45?46%, either in the form of Hydrogen, electricity, or both

Exploring the use of low-intensity ultrasonics as a tool for assessing the salt content in pork meat products

Meat industry demands non-destructive techniques for the control of the salting process to achieve a homogeneous final salt content in salted meat products. The feasibility of using low-intensity ultrasound for characterizing the salting process of pork meat products was evaluated. The ultrasonic velocity (V) and time of flight (TF) were measured by through-transmission and pulse-echo methods, respectively, in salted meat products. Salting involved an increase of the V in meat muscles and a decrease of the time of flight in whole hams. Measuring the V before and after salting, the salt content could be estimated. Moreover, online monitoring of the salting process by computing the TF could be considered a reliable tool for quality control purposesGarcía Pérez, JV.; Prados Pedraza, MD.; Martínez-Escrivá, G.; González, R.; Mulet Pons, A.; Benedito Fort, JJ. (2015). Exploring the use of low-intensity ultrasonics as a tool for assessing the salt content in pork meat products. Physics Procedia. 70:837-840. doi:10.1016/j.phpro.2015.08.171S8378407