546 research outputs found

    Fashion Design: The Project of the Intangible

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    [EN] This study is part of the surveys conducted in the doctoral research about the methodological tools of fashion design, which focuses in the techniques and methods for the elaboration of visual support of the semantic aspects of clothing products in the educational context. In assessing the design process in this field, it was analyzed the interaction system between the fashion clothing product and its users. An exploratory research was conducted, including literature review and documentary analysis, through which we identified the main requirements of interaction between product and user. The criteria identified as essential for examining the body-artifact-environmental system are distributed in projective parameters of physical adaptation, expression and representation. For these reasons, this article aims to relate concepts drawn from theories of human factors, hedonomics, communication and emotional design, to demonstrate then that fashion clothing is a dynamic and interactive space that mediates the relationship with the environment. Therefore, this text addresses clothing as an amplified interactive space, envisioning exchanges that perform with the body, the surrounding space (physical and cultural) and time. By associating the literature and the documentary analysis of academic practices, it was possible to highlight the key indicators to understand the attributes that guide the development of wearable interfaces. Among these attributes, the communicative potential receives greater emphasis, as these artifacts are converted into individual vehicles of expression and collective identification, becoming instruments of symbolic constructions and mobile records of the space-time relations incorporated in the material culture. The results reinforces the hypothesis of a methodological approach to fashion design in which the visual thinking and systemic reasoning is valued, in order to integrate the socio-cultural codes to the usability requirements of the products, allowing the aesthetic-symbolic factors to create identification links and build the affective experience.Sanches, MCDF.; Hernandis Ortuño, B.; Moreira Martins, SR. (2015). Fashion Design: The Project of the Intangible. Procedia Manufacturing. 3:2311-2317. doi:10.1016/j.promfg.2015.07.377S23112317

    Demonstration experiments for solid state physics using a table top mechanical Stirling refrigerator

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    Liquid free cryogenic devices are acquiring importance in basic science and engineering. But they can also lead to improvements in teaching low temperature an solid state physics to graduate students and specialists. Most of the devices are relatively expensive, but small sized equipment is slowly becoming available. Here, we have designed several simple experiments which can be performed using a small Stirling refrigerator. We discuss the measurement of the critical current and temperature of a bulk YBa2Cu3O(7-d) (YBCO) sample, the observation of the levitation of a magnet over a YBCO disk when cooled below the critical temperature and the observation of a phase transition using ac calorimetry. The equipment can be easily handled by students, and also used to teach the principles of liquid free cooling

    Virtual simulation for last-year nursing graduate students in times of COVID-19: a quasi-experimental study

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    Background: The COVID-19 pandemic has made it necessary to adapt university health-education. Virtual simulation has been proposed to be a suitable tool. Methods: A quasi-experimental study was conducted on nursing students in the final year. The virtual simulation platform vSimÂź was used. Improvements in knowledge, skills during simulation, satisfaction and self-confidence obtained through the training provided were analyzed, as well as satisfaction with the platform. Results Pre-post training knowledge improved. Skill acquisition improved between the first and last attempts in all cases. The levels of self-confidence and satisfaction with the training and the platform used were high. Conclusions: The vSimÂź was a useful solution during the pandemic. Knowledge improved and high self-confidence was obtained

    New Results for Diffusion in Lorentz Lattice Gas Cellular Automata

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    New calculations to over ten million time steps have revealed a more complex diffusive behavior than previously reported, of a point particle on a square and triangular lattice randomly occupied by mirror or rotator scatterers. For the square lattice fully occupied by mirrors where extended closed particle orbits occur, anomalous diffusion was still found. However, for a not fully occupied lattice the super diffusion, first noticed by Owczarek and Prellberg for a particular concentration, obtains for all concentrations. For the square lattice occupied by rotators and the triangular lattice occupied by mirrors or rotators, an absence of diffusion (trapping) was found for all concentrations, except on critical lines, where anomalous diffusion (extended closed orbits) occurs and hyperscaling holds for all closed orbits with {\em universal} exponents df=74{\displaystyle{d_f = \frac{7}{4}}} and τ=157{\displaystyle{\tau = \frac{15}{7}}}. Only one point on these critical lines can be related to a corresponding percolation problem. The questions arise therefore whether the other critical points can be mapped onto a new percolation-like problem, and of the dynamical significance of hyperscaling.Comment: 52 pages, including 18 figures on the last 22 pages, email: [email protected]

    Media Aesthetics: Two Examples in the Spanish Art

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    Este artĂ­culo descubre una estĂ©tica basada en la intervenciĂłn de las mĂĄquinas en los procedimientos creativos del arte. El estudio profundiza en una estĂ©tica del maquinismo desde la reflexiĂłn filosĂłfica, que abarca desde la incursiĂłn de las tecnologĂ­as Ăłpticas (fotografĂ­a, cinematografĂ­a) a las tecnologĂ­as electrĂłnicas (videografĂ­a, computer graphics, redes). La investigaciĂłn aporta nuevas luces sobre la nociĂłn del Media Art. Los medios han abierto a los artistas las posibilidades del laboratorio de experimentaciĂłn estĂ©tica entre arte, ciencia e innovaciĂłn tecnolĂłgica. En este sentido, el texto demuestra como la nueva creatividad mediĂĄtica ensaya formas mĂĄs representativas del pensamiento posmoderno. Para una mejor ejemplaridad de la cuestiĂłn planteada, el artĂ­culo ha analizado brevemente las obras de dos artistas españoles representativos de momentos distintos. En el primer ejemplo, se expone el comienzo de un incipiente Arte de Medios en la cavilaciones tecnolĂłgicas y mĂ­sticas de JosĂ© Val del Omar. En el segundo ejemplo, se muestra  la evoluciĂłn contemporĂĄnea en el ensayo con Internet de Antoni Muntadas.  This article unveils an aesthetic based on the intervention of machinery into creative art procedures. The study goes deeply into a machine-related aesthetic from philosophic reflections, which range from the incursions of, firstly, optical technologies (photography, cinematography) and then electronic technologies (videograph, computer graphics, networks). The research throws new light on the notion of Media Art. The media have opened up to artists the possibilities of the laboratory for aesthetic experimentation and the innovative inter-relationship of art, science, and technology.  In this sense, the text demonstrates how new media creativity experiments with forms more representative of postmodern thinking.  For the purposes of a better exemplification of the question raised, this article has briefly analysed the works of two Spanish artists, representative of the two different phases. The first example opens with the commencement of an incipient Media Art in the technological and mystical ruminations of JosĂ© Val del Omar. In the second example, the contemporary evolution into internet experimentation of Antoni Muntadas is demonstrated

    Two diffusion photopolymer for sharp diffractive optical elements recording

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    Photopolymers as recording media are widely used in optical applications. In such materials, changes in the phase of the transmittance function are generated during exposure due to refractive index and thickness modulations. These changes arise primarily as a consequence of photopolymerization and mass transport processes. Characterizing polymers’ performance, for example, quantifying the value of monomer diffusion, is therefore very important. Applying index matching, the volume and surface optical effect are separated in an acrylamide/polyvinylalcohol (AA/PVA) material. Using a simplified model that includes the effects of the holes produced during polymerization, both hole and monomer diffusion are analyzed. The analysis presented indicates higher material sensitivity than previously estimated. The results also indicate the possibility of recording sharper diffractive optical elements profiles, like blazed gratings, having diffraction efficiencies higher than 80%.Enterprise Ireland; Generalitat Valenciana of Spain (ISIC/2012/013, PROMETEOII/2015/015); Irish Research Council for Science, Engineering and Technology (National Development Fund); Ministerio de Economía y Competitividad of Spain (FIS2011-29803-C02-01); Science Foundation Ireland

    First evidence of paleoearthquakes along the Carboneras Fault Zone (SE Iberian Peninsula): Los Trances site

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    Seismogenic faults that have not produced historical large earthquakes remain unnoticed and, thus, are dangerously left out from seismic hazard analyses. The seismogenic nature of the Carboneras Fault Zone, a left-lateral strikeslip fault in the Eastern Betic Shear Zone (southeastern Spain), has not been fully explored to date in spite of having a morphological expression equivalent to the Alhama de Murcia Fault, a seismogenic fault in the same tectonic system. This study provides the first paleoseismic evidence of the seismogenic nature of the Carboneras Fault Zone, based on the analysis of 3 trenches at Los Trances site, on the northwestern edge of the La Serrata Range. Cross cutting relationships and numerical dating, based on radiocarbon, thermoluminescence and U-series, reveal a minimum of 4 paleoearthquakes: Paleoearthquake1 (the oldest) and Paleoearthquake2 took place after 133ka, Paleoearthquake3 occurred between 83–73ka and Paleoearthquake4 happened after 42.5ka (probably after 30.8ka), resulting in a maximum possible average recurrence of 33ka. This value, based on a minimum amount of paleoearthquakes, is probably overestimated, as it does not scale well with published slip-rates derived from offset channels or GPS geodetical data. The characterization of this fault as seismogenic, implies that it should be considered in the seismic hazard analyses of the SE Iberian Peninsula
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