1,587 research outputs found
3D FEM model development from 3D optical measurement technique applied to corroded steel bars
Understanding the mechanical effects of the corrosion pits on the steel surface requires an accurate definition of their geometry and distribution along the rebar. 3D optical measurement technique is used to obtain the outer geometry of artificially corroded bars tested under cyclic or monotonic loads. 3D FEM model development from the 3D scanning results were carried out in order to investigate the failure process and local effects on the pits, which are responsible of the variation of the mechanical properties in corroded steel reinforcement. In addition, a validation of a simplified model, which allows the mechanical steel properties determination given an estimated corrosion level, is presented. 3D models were convenient to observe and measure the local effects on the pits.Peer ReviewedPostprint (author's final draft
From perception to action and vice versa: a new architecture showing how perception and action can modulate each other simultaneously
Presentado en: 6th European Conference on Mobile Robots (ECMR) Sep 25-27, 2013 Barcelona, SpainArtificial vision systems can not process all the
information that they receive from the world in real time
because it is highly expensive and inefficient in terms of
computational cost. However, inspired by biological perception
systems, it is possible to develop an artificial attention model
able to select only the relevant part of the scene, as human
vision does. From the Automated Planning point of view, a
relevant area can be seen as an area where the objects involved
in the execution of a plan are located. Thus, the planning system
should guide the attention model to track relevant objects. But,
at the same time, the perceived objects may constrain or provide
new information that could suggest the modification of a current
plan. Therefore, a plan that is being executed should be adapted
or recomputed taking into account actual information perceived
from the world. In this work, we introduce an architecture that
creates a symbiosis between the planning and the attention
modules of a robotic system, linking visual features with high
level behaviours. The architecture is based on the interaction of
an oversubscription planner, that produces plans constrained
by the information perceived from the vision system, and an
object-based attention system, able to focus on the relevant
objects of the plan being executed.Spanish MINECO projects TIN2008-06196, TIN2012-38079-C03-03 and TIN2012-38079-C03-02. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec
Gamification and mobile applications to entrepreneurship: an educational proposal in Higher Education
La gamificación es un fenómeno en auge con muchas aplicaciones en el campo educativo.
Dicha herramienta consiste en utilizar las mecánicas del juego con el fin de potenciar la
motivación, la concentración o el esfuerzo, creando una mejora del proceso de enseñanza-
aprendizaje. Precisamente, en el sector deportivo existen experiencias anteriores que han
utilizado la gamificación para cambiar el comportamiento de sus usuarios. En base a ello,
este trabajo tenía el objetivo de fomentar el espíritu emprendedor de estudiantes
universitarios mediante la creación de una aplicación móvil vinculada al deporte y a la
gamificación. Se aplicó en asignaturas de los grados de Ciencias de la Actividad Física y
del Deporte, y de Administración y Dirección de Empresas. Para conseguir el objetivo se
establecieron ocho fases así como las evaluaciones para medir el rendimiento de las
acciones docentes. La experiencia docente finalizó con un concurso de ideas
emprendedoras por parte de los alumnos, presentando la aplicación móvil, así como el plan
de negocio y de marketing. Experiencias de este tipo ayudan al desarrollo de competencias
específicas vinculadas al emprendimiento en la universidad, sirviendo de base para futuros
proyectos de innovación docente.Gamification is a booming phenomenon with many applications in the educational field. This
tool consists of using the mechanics of the game in order to boost motivation, concentration
or effort, creating an improvement of the teaching-learning process. Precisely in the sports
sector there are previous experiences that have used gamification to change the behavior of
it is users. Based on this, this work had the objective of promoting the entrepreneurial spirit
of university students through the creation of a mobile application linked to sport and
gamification. This experience was applied in subjects of the bachelor in Sciences of the
Physical Activity and of Sport, and Administration and Direction of Companies. For this
reason, for to achieve the goal eight phases were established as well as assessments to
measure the performance of the teaching actions. The teaching experience ended with a
contest of enterprising ideas on the part of the students, presenting the mobile application,
as well as the business and marketing plan. Experiences of this type help the development
of specific competences linked to entrepreneurship in the university, serving as the basis for
future teacher innovation projects
Paisaje urbano histórico, aplicación de la recomendación en el centro histórico del distrito central de Honduras : Trabajo Fin de Máster 17-18
Universidad de Sevilla. Máster en Arquitectura y Patrimonio Históric
The use of collaborative publishing tools in Didactics of Experimental Sciences in multicampus universities: The case of the University of Castilla-La Mancha
El uso de herramientas de publicación colaborativas, denominadas
comúnmente como wikis, presenta numerosas ventajas en su aplicación a la
docencia en Didáctica de las Ciencias Experimentales, sobre todo en
Universidades multicampus. Éste es el caso de la Universidad de Castilla-La
Mancha y, en concreto, de la titulación de grado de Maestro en Educación
Primaria, que se imparte en cuatro campus diferentes: Albacete, Ciudad Real,
Cuenca y Toledo. El uso de las mismas permitiría, por ejemplo, el trabajo de
grupos formados por alumnos de diferentes campus, superando las barreras
espacio-temporales. La realización de trabajos en grupos de estas características
supondría dar un paso más en la unificación de los criterios formativos en
aspectos como la preparación del material o el planteamiento de trabajos
prácticos existentes dentro de la asignatura. Utilizar una herramienta colaborativa
como es una wiki supone la posibilidad de impartir de un modo más coordinado
las asignaturas del área de Didáctica de las Ciencias Experimentales, así como
trabajar numerosas competencias transversales. Asimismo, las wikis permiten
registrar cambios históricos en los documentos, con lo que no sólo se puede
realizar una evaluación formativa del trabajo conjunto, sino también del trabajo
individual. Hay que remarcar que, debido a su estructura, permite crear enlaces a
espacios de trabajo de otras disciplinas, haciendo sencilla la realización de
proyectos interdisciplinares. Este hecho favorece el que los alumnos no estudien
de manera aislada las diferentes didácticas específicas, sino que trabajen
directamente con la interrelación entre ellas. Por ello, no sólo podemos hablar de
trabajar interdisciplinarmente dentro de la Didáctica de las Ciencias
Experimentales, sino también en la relación con otras áreas afines o relacionadas.The use of collaborative publishing tools, commonly called wikis, provide a
wide number of advantages on its application to teaching in Didactics of
Experimental Sciences, above all in multicampus Universities. This is the case of
the University of Castilla-La Mancha and, in particular, of the Primary Education
degree, that is imparted in four different campus: Ciudad Real, Toledo, Albacete
and Cuenca. The use of wikis would allow to work, for example, in groups
composed by students of different campus, getting through spatial and temporal
barriers. Making collaborative works with these characteristics would improve
the unification of the existing criteria in aspects like elaborating documentation
or designing practical works for the different subjects. Using a collaborative tool
like a wiki, implies the possibility of giving lessons of the subjects of the area of
Didactics of Experimental Sciences in a more coordinated way, and also to work
numerous transversal competences. Wikis also allow to register historical
changes in the documents, so it is possible to make a formative assessment as
well as an individual one. It is remarkable that the structure of a wiki allows to
link these workspaces to others that belong to another disciplines, so it is easy to
create multidisciplinary projects. As a result, students don’t study the specific
didactics separately, but they work with its interrelationships. And it means not
only to work interdisciplinarly in Didactics of Experimental Sciences, but also in
other areas
Development and Assessment of the Competence Creativity Applied to Technical Drawing
The results obtained after incorporating the competence “creativity” to the subject Technical Drawing of the first course of the Degree in Forestry, Technical University of Madrid, are presented in this study.At first, learning activities which could serve two functions at the same time -developing students’ creativity and developing other specific competences of the subject- were considered. Besides, changes in the assessment procedure were made and a method which analyzes two aspects of the assessment of the competence creativity was established. On the one hand, the products are evaluated by analyzing the outcomes obtained by students in the essays suggested and by establishing a parameter to assess the creativity expressed in those essays. On the other, an assessment of the student is directly carried out through a psychometric test which has been previously chosen by the team.Moreover, these results can be applied to similar or could be of general applicatio
Structural effects of steel reinforcement corrosion on statically indeterminate reinforced concrete members
The final publication is available at Springer via http://dx.doi.org/10.1617/s11527-016-0836-2Steel corrosion in reinforced concrete structures produces loss of reinforcement area and damage in the surrounding concrete. As a consequence, increases in deflections, crack widths and stresses may take place, as well as a reduction of the bearing capacity, which depends on the structural scheme and redundancy. In this paper an experimental study of twelve statically indeterminate beams subjected to different levels of forced reinforcement corrosion is presented. Different sustained loads were applied during the corrosion phase to assess their influence on the effects of corrosion. An important increase in deflections was registered in all corroded beams, especially in those subject to higher load levels. It was also found that the rate of corrosion was affected by the load level. Internal forces redistributions due to induced damage were measured. Finally, the experimental results were compared with those predicted by a non-linear time-dependent segmental analysis model developed by the authors, obtaining in general good agreement.Peer ReviewedPostprint (author's final draft
Cultura organizacional y satisfacción laboral : propiedades psicométricas de una escala en centros de fitness
Numerosos estudios indican la relación significativa entre la cultura organizacional y la satisfacción en el trabajo. Por lo que las organizaciones con culturas organizativas adecuadas obtendrán ventajas competitivas. Por esta razón, destacar que se trata de una variable vital, especialmente en la búsqueda de satisfacción laboral del cliente interno en los centros deportivos. El objetivo de este estudio fue trabajar con un modelo de medida entre la cultura organizacional y la satisfacción laboral en centros de fitness. Se empleó el Culture Index for Fitness Organizations (CIFO) para la cultura organizacional y el Overall Job Satisfaction para la satisfacción laboral, evaluando las propiedades psicométricas a través de un análisis factorial exploratorio y confirmatorio. Para evaluar la fiabilidad y validez del modelo, se analizó la fiabilidad compuesta, la varianza media extractada, la validez convergente y discriminante. La muestra estuvo compuesta por 180 empleados (79 mujeres y 101 hombres) de centros de fitness. Los resultados muestran que el modelo de cultura organizacional y satisfacción laboral es adecuado, ofreciendo un ajuste satisfactorio tras la obtención de una estructura factorial bien definida. Por tanto, la escala utilizada cuenta con adecuadas propiedades psicométricas, permitiendo una evaluación fiable y válida de la cultura organizacional y la satisfacción laboral.Numerous studies indicate the significant relationship between organizational culture and job satisfaction. So organizations with appropriate organizational cultures gain competitive advantages. For this reason, it should be noted that this is a vital variable, especially in the search for job satisfaction of the internal customer in sports centers. The objective of this study was to work with a test model between organizational culture and job satisfaction in fitness centers. The Culture Index for Fitness Organizations (CIFO) was used for organizational culture and Overall Job Satisfaction for job satisfaction, evaluating the psychometric properties through an exploratory and confirmatory factor analysis. To evaluate the reliability and validity of the model, we analyzed the composite reliability, the average variance extracted, and the convergent and discriminant validity. The sample consisted of 180 employees (79 women and 101 men) from fitness centers. The results showed that the organizational culture and job satisfaction model is adequate, offering an adequate goodness-of-fit after obtaining a well-defined factor structure. Therefore, the scale used has adequate psychometric properties, allowing a reliable and valid assessment of organizational culture and job satisfaction
Quality and customer loyalty: A segmentation analysis in low-cost fitness centers
La calidad y la fidelidad han sido estudiadas en los centros de fitness, mayormente en la relación que tienen entre ambas y con otras variables. En pocos casos se han realizado estudios que analicen los perfiles de clientes que mejor perciben dichas variables.Por esta razón el estudio tenía por objetivo segmentar a los clientes de centros de fitness low-cost según la percepción de calidad y fidelidad. La muestra estuvo compuesta por 8462 clientes (4303 mujeres y 4159 hombres) de centros de fitness low-cost. Se realizó análisis de la varianza y de conglomerados bietápico. Los resultados mostraron cuatro clústers en los que existieron diferencias significativas en la percepción de la calidad y la fidelidad. Estos hallazgos muestran la importancia del conocimiento de lascaracterísticas de consumidores deportivos
- …