Comparació de SIG basats en codi lliure i SIG comercials.

El Projecte de Fi de Carrera desenvolupat consisteix, breument, en comparar un Sistema de Informació Geogràfica (SIG) comercial amb un de lliure. Per tant els objectius del projecte són conèixer què és un SIG, introduir-se en el món del programari lliure dels SIG, aprendre a treballar amb ambdós productes i saber detectar els punts més rellevants de cadascun d'ells.El Proyecto de Fin de Carrera desarrollado consiste, brevemente, en comparar un Sistema de Información Geográfica (SIG) comercial con uno libre. Por lo tanto, los objetivos del proyecto son conocer qué es un SIG, introducirse en el mundo del software libre de los SIG, aprender a trabajar con ambos productos y saber detectar los puntos más relevantes de cada uno de ellos.This Final Degree Project consists of, briefly, in comparing a commercial Geographic Information System (GIS) with a free one. Consequently, the objectives of the project are to understand what a GIS is, enter the world of free GIS software, learn to work with both products and know how to detect the most outstanding features of each one

Scale-adaptive simulation of unsteady cavitation around a naca66 hydrofoil

Distances between consecutive aftershocks are analysed by means of mono- and multifractal theory with the aim of quantifying the complexity of the physical mechanism governing them, as well as their predictability and predictive instability. Hausdorff, Ha, and Hurst, H, exponents are determined by semivariograms and rescaled analysis, respectively. The exponent ß of the power law describing power spectral contents is also quantified. These three parameters permit a generation of fractional Gaussian noise, fGn, simulating distances. The complexity and predictive instability of physical mechanism generating the series of distances is quantified by means of the correlation dimension, µ*, the Kolmogorov entropy, ¿, and the Lyapunov exponents, ¿i, which are based on the reconstruction theorem formulation. Additionally, the multifractal detrended fluctuation analysis, MF-DFA, contributes with a different point of view to quantify the complexity of the series, in terms of fractal spectral width, W, spectral asymmetry, B, and the critical Hölder exponent, a0. By one hand, the MF-DFA is applied to the complete set of distances characterising the whole aftershock process. By the other hand, the MF-DFA is applied to segments of the series of distances with the aim of determining the evolution of the complexity since the mainshock up to the end of the stress relaxation process. Finally, an ARIMA multilinear regression process is applied to obtain some improvements, in comparison with fGn simulations, on the prediction of distances. The database for this analysis is obtained from the Southern California Seismic Network (SCSN) catalogue. Three series of aftershocks equalling to or exceeding magnitudes of 2.0, assuring seismic catalogue completeness, and associated with Landers (06/28/1992), Northridge (01/17/1994) and Hector Mine (10/16/1999) mainshocks are obtained. It is worth mentioning that common mono-multifractal behaviour for the three aftershocks series is not detected, whatever aftershock periods or segments of them are considered.Postprint (published version

Creixement i Convergència Regional a Espanya i Europa

Regional policies in the supply of public goods can have a significant impact on regional disequality in Europe. In the middle or long run, equalisation of the regional supply of public and human capital will reduce regional income dispersion per head approximately be a third. The contributions of education and infrastructure investment to this amount are approximately of the same order of magnitude. Investment priorities implied by various equity and efficiency criteria are quite at variance. It doet not follow that there is allways a conflict between equity and efficiency. This is not the case in the group of regions with a low supply of public capital and un acceptable return to investment. The contribution of infrastructure police to the reduction of regional disequality in Spain during the period analysed has been very small (around 1%). The assignation of FEDER transfers has proven to be clearly a redistributive criterion. The impact of these funds has been considerable, although limited by the small volume of available resources. According to our results, FEDER has reduced dispersion of regional income in Spain, for the most optimistic scenario, around 5%, a figure which represents approximately one third of the total reduction in regional disequality during the decade of the eighties

Creixement i Convergència Regional a Espanya i Europa

Regional policies in the supply of public goods can have a significant impact on regional disequality in Europe. In the middle or long run, equalisation of the regional supply of public and human capital will reduce regional income dispersion per head approximately be a third. The contributions of education and infrastructure investment to this amount are approximately of the same order of magnitude. Investment priorities implied by various equity and efficiency criteria are quite at variance. It doet not follow that there is allways a conflict between equity and efficiency. This is not the case in the group of regions with a low supply of public capital and un acceptable return to investment. The contribution of infrastructure police to the reduction of regional disequality in Spain during the period analysed has been very small (around 1%). The assignation of FEDER transfers has proven to be clearly a redistributive criterion. The impact of these funds has been considerable, although limited by the small volume of available resources. According to our results, FEDER has reduced dispersion of regional income in Spain, for the most optimistic scenario, around 5%, a figure which represents approximately one third of the total reduction in regional disequality during the decade of the eighties

Extending OmpSs for OpenCL kernel co-execution in heterogeneous systems

© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes,creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.Heterogeneous systems have a very high potential performance but present difficulties in their programming. OmpSs is a well known framework for task based parallel applications, which is an interesting tool to simplify the programming of these systems. However, it does not support the co-execution of a single OpenCL kernel instance on several compute devices. To overcome this limitation, this paper presents an extension of the OmpSs framework that solves two main objectives: the automatic division of datasets among several devices and the management of their memory address spaces. To adapt to different kinds of applications, the data division can be performed by the novel HGuided load balancing algorithm or by the well known Static and Dynamic. All this is accomplished with negligible impact on the programming. Experimental results reveal that there is always one load balancing algorithm that improves the performance and energy consumption of the system.This work has been supported by the University of Cantabria with grant CVE-2014-18166, the Generalitat de Catalunya under grant 2014-SGR-1051, the Spanish Ministry of Economy, Industry and Competitiveness under contracts TIN2016- 76635-C2-2-R (AEI/FEDER, UE) and TIN2015-65316-P. The Spanish Government through the Programa Severo Ochoa (SEV-2015-0493). The European Research Council under grant agreement No 321253 European Community’s Seventh Framework Programme [FP7/2007-2013] and Horizon 2020 under the Mont-Blanc Projects, grant agreement n 288777, 610402 and 671697 and the European HiPEAC Network.Peer ReviewedPostprint (published version

A case study on cross-platform development frameworks for mobile applications and UX

Cross-platform development frameworks for mobile applications promise important advantages in cost cuttings and easy maintenance, posing as a very good option for organizations interested in the design of mobile applications for several platforms. Given that platform conventions are especially important for the User eXperience (UX) of mobile applications, the usage of a framework where the same code defines the behavior of the app in different platforms could have a negative impact in the UX. This paper describes a study where two independent teams have designed two different versions of a mobile application, one using a framework that generates Android and iOS versions automatically, and another team using native tools. The alternative versions for each platform have been evaluated with 37 users with a combination of a laboratory usability test and a longitudinal study. The results show that differences are minimal in the Android platform, but in iOS, even if a reasonably good UX can be obtained with the usage of this framework by an UX-conscious design team, a higher level of UX can be obtained directly developing with a native tool

Towards a generic prognostic function of technical multi-component systems taking into account the uncertainties of the predictions of their components

This article presents the first elements of a generic function that assesses the capacity of technical multi-component systems to accomplish the assigned productive tasks from production planning. This assessment is based on the prognostics of their components. It must so be able to process inaccuracies and uncertainties of these prognostics. For its implementation the aimed function combines the Dempster-Shafer theory combined and Bayesian inferences. The paper presents the multi-component system modeling and the inferences for the different identified structures as well as a general algorithm. The final aim of the proposed generic function is to compute decision supports for cooperative maintenance and production management