Mercenario

Relat guanyador del I Concurs de relats breus de l'Escola d'Enginyeria de la UAB, amb motiu de la diada de Sant Jord

Impact of touristic sustainability on satisfaction with touristic services in a world heritage city. The case of the equestrian show in Córdoba (Spain)

Purpose: The main objective of this research is to analyze satisfaction with tourist services linked to the concept of sustainability in the context of a visit to the so-called equestrian show. The equestrian show adds values from the cultures that passed through the city. Specifically, the study focuses on tourist loyalty based on satisfaction with tourist services, satisfaction with the equestrian show and its overall quality. The fieldwork has been conducted in Córdoba, Spain. There are few studies on the relationship between tourist services linked to the concepts of sustainability and loyalty from the perspective of equestrian show management, making this a novel contribution to research. Design/methodology/approach: The methodology used is based on a partial least squares structural equation modeling (PLS-SEM) approach. Findings: To achieve the proposed objective, a structured questionnaire was used, and the results obtained confirm that satisfaction with tourist services linked to the concept of sustainability and the assessment of quality positively influence tourist loyalty. Consequently, they recommend returning to the destination and repeating the visit. Originality/value: Heritage in Córdoba, Spain, is internationally recognized. Its uniqueness, with four world inscriptions along with the cultures that inhabited it, left a material heritage legacy in the city. Over time, this legacy has made it a magnet for visitors, making it essential to delve into its management and how concepts such as satisfaction with tourist services, combined with sustainability, impact the improvement of the visit

Control-oriented thermal modeling methodology for water-cooled PEM fuel-cell-based systems

In this paper, a new control-oriented modeling methodology for the thermal dynamics of water-cooled Proton Exchange Membrane Fuel Cells (PEMFCs) is presented and validated. This methodology is not only useful for control applications, but also can be used for predicting the temperature variation across the stack, allowing to monitor its operation. The methodology has been validated in a real 600-W, 20-cells, water cooled PEMFC, with encouraging results for both the stationary and the transient states. Results show that the proposed methodology is accurate and suitable for control purposes.Peer ReviewedPostprint (author's final draft

Una revisión histórica: desde el dibujo en ingeniería hacia la ingeniería del diseño

El presente artículo muestra una investigación histórica acerca de la evolución en el tiempo de los avances sufridos por la geometría, y particularmente el dibujo técnico como dibujo en ingeniería, realizando la revisión por etapas que incluyen el Mundo Antiguo, la Edad Media, el Renacimiento, la Época Moderna, el siglo XX y el dibujo actual en ingeniería, para finalizar exponiendo unas tendencias de futuro. Se exponen los hitos históricos más relevantes tales como la aparición de los primeros ejemplos de vistas normalizadas, así como de la perspectiva, y la llegada de los sistemas de representación de la geometría descriptiva, particularmente el sistema diédrico, que supusieron el desarrollo de la ingeniería gráfica hasta llegar en la actualidad a ser pilares en la ingeniería del diseño

Dibujos anaglíficos: su optimización y aplicación a la enseñanza técnica universitaria

La presente investigación aplica el procedimiento anaglífico (ya usado en la visión de problemas de Geometría Descriptiva y en Topografía), a partir de los conocimientos que se disponen sobre la visión estereoscópica y los dibujos anaglíficos, con la intención de que desaparezca la dificultad que presentan alumnos de las Escuelas Técnicas de Ingeniería a la hora de visualizar el espacio representado, y así convertir esta técnica en una herramienta didáctica de apoyo para aquellas personas que presentan dificultad en la visión espacial. En el apartado de Fundamentos y Metodología se expone el proceso y las condiciones de obtención anaglífica para visualizar los dibujos anaglíficos en forma tridimensional. En el apartado de Resultados y Discusión se muestran ejemplos donde se aplican anaglifos a las enseñanzas técnicas universitarias, presentándose varias encuestas realizadas a los alumnos de Expresión Gráfica en la Ingeniería de la Universidad de Zaragoza (España), y donde se observa un resultado espectacular en aquellos a los que se les ha presentado la encuesta con anaglifos. Finalmente, en el apartado de Conclusiones, se resumen las condiciones que deben cumplir los dibujos anaglíficos para que se vean de forma óptima

A comparison of bio-inspired optimization methodologies applied to the tuning of industrial controllers

Trabajo presentado en XXXVI Convención de Centroamérica y Panamá, CONCAPAN XXXVI, noviembre de 2016.A comparison of different bio-inspired methods is presented for the problem of tuning the parameters of a PID industrial controller for second order plus time delay plants. The compared algorithms are representative of three different kind of methodologies (evolutionary, swarm-based and ecology-based). Al methods are briefly explained and are fully implemented to solve the control problem at hand. It was found that all methods are well suited to solve the problem, but they differ in its computational cost. However in all cases, the different methodologies tested were able to find similar minimum values for different families of plantsUniversidad de Costa Rica/[322-B4-218]/UCR/Costa RicaUCR::Vicerrectoría de Docencia::Ingeniería::Facultad de Ingeniería::Escuela de Ingeniería Eléctric

Model reference pi controller tuning for second order inverse response and dead time processesand science

In this paper, a One-Degree-of-Freedom PI controller is optimized using the model reference tuning approach for a Second Order Inverse Response and Dead Time Process operating as a servo control. In addition, a graphic user interface tool that computes the PI optimized controller parameters is presented, also showing the response of the control system operating as a servo-control (the optimized one) and the associated response for the regulatory-control case.Universidad de Costa Rica/[731-B4-213]/UCR/Costa RicaUniversidad de Costa Rica/[322-B4-218]/UCR/Costa RicaConsejo Interinstitucional de Ciencia y Tecnología/[DPI2013-47825-C3-1-R]/CICYT/EspañaUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ingeniería::Instituto Investigaciones en Ingeniería (INII

CARGO: a web portal to integrate customized biological information

There is a huge quantity of information generated in Life Sciences, and it is dispersed in many databases and repositories. Despite the broad availability of the information, there is a great demand for methods that are able to look for, gather and display distributed data in a standardized and friendly way. CARGO (Cancer And Related Genes Online) is a configurable biological web portal designed as a tool to facilitate, integrate and visualize results from Internet resources, independently of their native format or access method. Through the use of small agents, called widgets, supported by a Rich Internet Application (RIA) paradigm based on AJAX, CARGO provides pieces of minimal, relevant and descriptive biological information. The tool is designed to be used by experimental biologists with no training in bioinformatics. In the current state, the system presents a list of human cancer genes. Available at http://cargo.bioinfo.cnio.e

Multi-objective optimal tuning of two degrees of freedom PID controllers using the ENNC method

In this paper the Enhanced Normalized Normal Constrained method is applied to find the optimal tuning of second order PID controllers. This tuning takes into account both the servo and regulatory modes simultaneously, as well as a closed loop robustness criterion. The methodology is successfully applied to a high order linear plant and to a non linear continuous stirred tank reactor model, showing the effectiveness of the optimization methodology to solve control related problems. Also, the method is applied to a benchmark control system that takes into account three different sources of disturbances.Universidad de Costa Rica [Vicerrectoría de Investigación de la Universidad de Costa Rica.] 322-B4-218UCR::Vicerrectoría de Investigación::Unidades de Investigación::Ingeniería::Instituto Investigaciones en Ingeniería (INII)UCR::Vicerrectoría de Docencia::Ingeniería::Facultad de Ingeniería::Escuela de Ingeniería Eléctric

Supporting the link between firm and research in the Degree in Business and Management Studies

El objetivo principal de este artículo es presentar el proyecto de innovación docente llevado a cabo durante el curso 2017/2018 entre el alumnado del Grado en Administración y Dirección de Empresas de la Universidad de Córdoba y, en concreto, en asignaturas relacionadas con las finanzas y la contabilidad. En este proyecto se ha implementado una nueva metodología docente al objeto de mejorar la adquisición y el desarrollo de competencias por parte del alumnado en un contexto de íntima conexión entre empresa e investigación, al objeto de simular el contexto real en el cual le serán demandadas las competencias a los graduados en el momento en que se enfrenten a su entrada en el mercado de trabajo. La metodología y las actividades que se han desarrollado para conseguir este objetivo principal incluyen: i) un seminario impartido por un profesional financiero de una empresa real; ii) el método de aprendizaje basado en problemas reales y soluciones científicas; iii) trabajo cooperativo en clase; y iv) un seminario impartido por un investigador en finanzas. Los resultados sugieren que esta metodología promueve de manera eficaz la adquisición de competencias entre el alumnado, especialmente aquellas relativas a interpretar la información financiera y resolver problemas financieros corporativos.The main objective of this paper is to present a teaching innovation project that has been implemented during the 2017/2018 academic year among students enrolled in the Degree in Business and Management at the University of Cordoba and, specifically, in subjects related to finance and accounting. In this innovation project a new teaching methodology has been implemented in order to improve the acquisition and development of competences by the students in a context of close connection between companies and research, to simulate the real context in which competences will be demanded to graduates when they face their entry into the labour market. The methodology and activities that have been developed to achieve this main objective include: i) a seminar by a financial professional of a real company; ii) a learning method based on real problems and scientific solutions; iii) cooperative work; and iv) a seminar by a researcher in finance. The results of this study allow to confirm that this methodology promotes in an effective way the acquisition of competences among students, especially those related to interpreting financial information and solving corporations’ financial problems