1,138 research outputs found

    Mobility and transformability in architectural structures : proposal of a transformable system of telescopic and x-articulated bars: cinematic, geometric and structural analysis

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    Systems of bars in x with intermediate hinge, also called SLE (scissor like elements), are suitable for the adaptability approach from the perspective of structural mobility. They are the starting point for new solutions: transformable M-SLE. It has been proved possible to obtain different formal alternatives with a single structural solution, by making modifications to add a DOF (degree of freedom) to the SLE base unit. In this research a new transformable typology is studied: telescopic bars, articulated in x. This proposal, based on the new MP-SLE (modified prismatic SLE) typology, combines two mechanisms of transformation: the scissor system with telescopic bars. It should be able to offer a wide variety of shapes without changing the span to cover, and unlike foldable structures, with only two stable positions, the new proposal offers several intermediate configurations. The object of study is a deck arch formed by several SLE units with 4 telescopic bars driven by pneumatic actuators. Through kinematic analysis (study of mobility), geometrical analysis (search for possible configurations and limits) and structural analysis (resistant feasibility) of the proposal with the new MP-SLE transformable unit, its critical issues of dimensioning and construction have been identified. This enables announcing possible solutions and defining future lines of research.Postprint (published version

    Proposta de codisseny d’una Ludoteca

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    Postgrau Disseny d’Espais d’Aprenentatge, Facultat d’Educació. Curs: 2019-2020, Tutor: Marta López CostaLa redacció i elaboració d’aquest treball de final de postgrau, ha estat elaborat amb dues finalitats. La primera és la de finalitzar els estudis del postgrau de disseny d’espais d’aprenentatge cursat, seguin les seves pautes i utilitzant tots els recursos que s’han impartit ens els diferents mòduls cursats. La segona finalitat és la d’entregar aquest treball com a projecte real de millora de l’espai escollit perquè es busquin els medis necessaris (tant econòmics com físics) per a poder fer realitat la proposta de disseny i perquè tots els usuaris actuals puguin gaudir de les millores estudiades

    Els CREI de Catalunya. Intervenció, perfil i evolució dels joves atesos

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    Aquest projecte és fruit d'un conveni de colaboració del grup de recerca IARS amb la DGAIA. El projecte pretén analitzar quina incidencia té la intervenció que es realitza als Centres Residencials d'Educació Intensiva de Catalunya (CREI) en l'evolució que els joves fan durant la seva estada en aquests centre

    Factores que influyen en la configuración del perfil de conductor de riesgo en la población de jóvenes estudiantes universitarios: evidencias para el diseño de intervenciones preventivas

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    The aim of this research is to identify and analyse factors that have an influence on the creation of a high risk profile in young drivers, in order to create road safety educational initiatives designed to minimise the risk of suffering a traffic accident, and aimed at preventing young people from developing a high risk profile. With the purpose of identifying what may have been the strongest influences in establishing the risk profile, the factors of family, peers and partner, reactions to stressful situations, videogames and accident experiences were considered among a cohort of university students. The results show that family and peers seem to be the most influential factors, whereas driving schools seems to be the strongest protective factor in preventing the appearance of risky driving profiles. Educational programmes highlighting the modelling role of those who teach young people how to drive need to be developed.El objetivo de esta investigación es identificar y analizar los factores que influyen en la creación de un perfil de conductor de alto riesgo entre los jóvenes conductores. La finalidad de ello es tener evidencias científicas que permitan diseñar iniciativas de intervención educativa para minimizar el riesgo de sufrir accidentes de tráfico y prevenir el desarrollo de perfiles de alto riesgo en jóvenes conductores. Con el propósito de identificar las influencias que podíantener más peso en la creación del perfil de riesgo se analizaron los factores familia, grupo de iguales y pareja, reacción a situaciones estresantes, videojuegos, e involucración en accidentes de tráfico en una muestra de estudiantes universitarios. Los resultados indican que la mayor influencia sería ejercida por la familia y el grupo de iguales, mientras que por otro lado, las autoescuelas se posicionarían como el mayor factor protector en la prevención de la aparición del perfil de conductor de riesgo. A partir de estos hallazgos se recomienda el desarrollo de programas que permitan reforzar el rol modelador de aquellos que enseñan a los jóvenes a conducir

    A dissimilarity based on relevant population features

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    In this paper a dissimilarity index between statistical populations is pro-posed without the hypothesis of a specific statistical model. We assume that the studied populations differ on some relevant features which are measured trough convenient parameters of interest. We assume also that we dispose of adequate estimators for these parameters. To measure the differences be-tween populations with respect the parameters of interest, we construct an index inspired on some properties of the information metric which are also presented. Additionally, we consider several examples and compare the ob-tained dissimilarity index with some other distances, like Mahalanobis or Siegel distances
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