1,847 research outputs found
Breath: Reciprocities Without Words. Music, sound and videoart as communication paths on migration processes
[EN] Breath was created during a research stay at Social Sciences department in Roskilde University in Denmark. The challenge was to find ways to disseminate knowledge through artistic resources in a research project under migration topic.European socio-cultural contexts nowadays are established as landscapes of diversity, platforms of social interaction where the confluence of perspectives of diverse cultures are gradually modified, giving rise to new expressive parameters of social groups. This environment allows a dialogue between different cultural musical manifestations and the approaches to the sound phenomenon that each one establishes. These cultural platforms are laboratories par excellence of the transculturation as a place where the exchange of musical identities is more easily produced. They accept (or should accept) diversity not as exoticism or threatening otherness but as a possibility of one's own identity.Under these circumstances, music plays a definitive and fundamental role constituting a purposeful and peaceful way of interaction between different cultural groups. Furthermore, music allows the development of a dialogue in the rethinking process of the collective, related to the individual.Breath is an approach to music in a social perspective, connecting people from different genders, generations and cultures that didn´t know each other before. Together we created a communication path without words, where breath is the guideline for the improvised music. We were all synchronized in a co-creative work. The photos and drawings that appears on the video where chosen and made by the participants afterwards, reflecting what they felt during the experience. Besides, Breath is an interactive work that invites you to participate in it with your own breath. Through a video installation, Breath pretends to arouse our empathy towards an understanding of the other. It aims to visualize our common aspects as humans and living beings, focusing on an existing and basic one: breathing reciprocity.Palacios, F. (2022). Breath: Reciprocities Without Words. Music, sound and videoart as communication paths on migration processes. En EShID2021 - II Congreso Internacional Estéticas Híbridas de la Imagen en Movimiento: Identidad y Patrimonio. Editorial Universitat Politècnica de València. 255-263. https://doi.org/10.4995/EShID2021.2021.13207OCS25526
La indebida reglamentación por parte de la Comisión de Regulación de Comunicaciones (CRC) y la Superintendencia de Industria y Comercio (SIC) del derecho de petición para los servicios de comunicaciones
Trabajo de investigaciónEn el presente trabajo de grado se aborda el problema existente entre la regulación del derecho fundamental de petición que han expedido la Superintendencia de Industria y Comercio (SIC) y la Comisión de Regulación de Comunicaciones (CRC) en el sector de los Servicios de Comunicaciones y su franco desconocimiento a los presupuestos constitucionales que se disponen para el exclusivo desarrollo de este tipo de derechos reservado sólo a través de una Ley Estatutaria.PregradoAbogad
Comentarios de epigrafía vizcaína romana y la municipalización en el territorio de la actual Euskadi
Sin resume
Design and simulation of a distortion masking control algorithm for a pneumatic cylinder
Low energy efficiency is one of the main detractors of fluid power technology. To ensure the availability and sustainability of energy sources, fluid power technology needs to meet high energy-efficiency and cost standards. This study aims to design, simulate and test a control algorithm that attenuates the detrimental effects of air compressibility on the performance and efficiency of a pneumatic cylinder.
The transmission of power over long distances makes it more difficult for fluid power technology to meet energy-efficiency and cost requirements. Transmitting power over long distances represents a challenge particularly for pneumatics due to the compressibility of air. The compressibility of air transmitted through lengthy tubing decreases the performance and efficiency of pneumatic actuators, mainly affecting their time response and velocity.
The system under analysis was composed of a pneumatic cylinder, two proportional control valves, and connective tubing. The dynamics of the individual components were characterized through experimentation. Nonlinear and linear models for the system were validated through the comparison of simulated and experimental data. The models predicted the system behavior more accurately at 2.5 Hz, when friction effects became negligible, as compared to 1.0 and 0.5 Hz.
A controller was designed using pole/zero cancellation, a control strategy able to mask undesirable dynamics of the system being controlled. Pole/zero cancellation had superior performance in the attenuation of air compressibility effects in comparison to proportional and proportional-derivative (PD) control. System performance and efficiency were assessed in terms of the variation of the length of tubing connecting the pneumatic cylinder and the control valves.
Pole/zero cancellation enabled the cylinder to achieve similar levels of performance for long (3.0 m) tubing as with short (0.55 m) tubing. With a 1.0-Hz sinusoidal input and equal control gains, pole/zero cancellation reduced the tracking error by approximately 30% and 23% in comparison to proportional and PD control, respectively. In terms of efficiency, with the system tracking a 2.5-Hz sinusoidal command, and using equal control gains, pole/zero cancellation increased the cylinder efficiency by approximately 36% and 54% in comparison to proportional and PD control, respectively. In general, pole/zero cancellation increased the system performance and efficiency in comparison to the other control schemes applied
Nanotechnology for high frequency communications: nitrides and graphene
The achievement of higher frequencies (HF) and the reduction of energy consumption, to improve sensing, communication and computation, involve the continued scaling down to the nanometer level. This scaling is enabled by of innovative device designs, improved processing technologies and
assessment tools, and new material structures. In this work, we have used all these factors to demonstrate state-of-the-art HF devices in two materials with quite different electronic properties: wide semiconductor bandgap III-nitrides for resonators and power amplifiers; and graphene, a zero bandgap material expected to revolutionize low noise and HF flexible electronics. Some issues faced during their
development will be discussed during the talk
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