Search results for "CRAC"
showing 10 items of 1418 documents
Structural behaviour of hybrid glass beams with T cross-sections
2018
Abstract An experimental investigation regarding the flexural and the shear behaviour of glass beams with length 900, 1300, 1700 mm and T cross-section is presented and discussed. T cross-sections were obtained by assembling glass web and glass flange. Some specimens were also reinforced internally in the web with steel plates of thickness 6 mm and depth 25 and 50 mm placed at the bottom portion of the beams for the entire length of the beams themselves. Three specimens for each investigated series were tested in flexure focusing on the flexural and shear response through the determination of the load-deflection curves and the crack patterns at rupture identifying the effects of steel plate…
Continuous monitoring of an intentionally-manufactured crack using an automated welding and in-process inspection system
2020
Abstract Automated weld deposition coupled with the real-time robotic Non-Destructive Evaluation (NDE) is used in this paper. For performance verification of the in-process inspection system, an intentionally embedded defect, a tungsten rod, is introduced into the multi-pass weld. A partially-filled groove (staircase) sample is also manufactured and ultrasonically tested to calibrate the real-time inspection implemented on all seven layers of the weld which are deposited progressively. The tungsten rod is successfully detected in the real-time NDE of the deposited position. The same robotic inspection system was then used to continuously monitor an intentionally-manufactured crack for 20 h.…
¿Actos preparatorios o pre-crímenes? ¿Penas o pre-castigos? Aproximación al fundamento de la criminalización de la preparación delictiva
2018
Este trabajo se orienta a mostrar que buena parte de los tipos preparatorios vigentes constituyen manifestaciones de un Derecho penal de autor y a llamar la atención sobre los serios peligros que ello implica desde la perspectiva de los principios dimanantes de un Estado democrático de Derecho. A tal efecto, se parte principalmente del ejemplo del derecho positivo español pero se alude también a la experiencia angloamericana, que refleja de manera particularmente expresiva la evolución del Derecho penal contemporáneo hacia un modelo puramente preventivo y de la peligrosidad, y se examina asimismo la regulación italiana como exponente de dicho paradigma. En la última parte del estudio se exp…
Solutions to replace quantity with quality in science.
2012
In their recent letter, Joern Fischer and others [1xAcademia's obsession with quantity. Fischer, J. et al. Trends Ecol. Evol. 2012; 27: 463–474See all References[1] tackled one of the major problems in modern science: the obsession with quantity. Perspicaciously, they showed how targeting for quantity has faded out creativity and reflection from science. Fischer and others ended their letter with the words: ‘Starting with our own university departments (but not stopping there), it is time to take stock of what we are doing. We must recreate spaces for reflection, personal relationships, and depth. More does not equal better.’ Utopian as it may be, we applaud this statement.Unfortunately, Fi…
Participación política, partidos y nuevos movimientos sociales
2005
En estas páginas se presenta un recorrido por diversas cuestiones relacionadas con la participación y la representación políticas en los sistemas políticos contemporáneos, tratando de recoger las aportaciones clásicas así como las más recientes que puedan resultar relevantes para la reflexión sobre la evolución de los modos y los mecanismos a disposición de los ciudadanos para integrar, articular, canalizar, movilizar y representar su participación política. La conclusión es un esperanzador saludo a las nuevas formas y mecanismos de participación diferenciados, así como a la diversificación de espacios y ámbitos para la acción política, cuya concurrencia no supone un cuestionamiento ni un r…
Democracy Squared: Designing On-Line Political Communities to Accommodate Conflicting Interests
2005
Published version of an article published in Scandinavian Journal of Information Systems, 17 (2), 133-168. Also available from the publisher at: http://aisel.aisnet.org/sjis/vol17/iss2/5. On-line political communities, such as the Norwegian site Demokratitorget (Democracy Square), are often designed according to a set of un-reflected assumptions about the political interests of their potential members. In political science, democracy is not taken as given in this way, but can be represented by different models which characterize different relationships between politicians and the citizens they represent. This paper uses quantitative and qualitative content analysis to analyze the communicat…
Training Deep Neural Networks with Novel Metaheuristic Algorithms for Fatigue Crack Growth Prediction in Aluminum Aircraft Alloys
2022
Fatigue cracks are a major defect in metal alloys, and specifically, their study poses defect evaluation challenges in aluminum aircraft alloys. Existing inline inspection tools exhibit measurement uncertainties. The physical-based methods for crack growth prediction utilize stress analysis models and the crack growth model governed by Paris’ law. These models, when utilized for long-term crack growth prediction, yield sub-optimum solutions and pose several technical limitations to the prediction problems. The metaheuristic optimization algorithms in this study have been conducted in accordance with neural networks to accurately forecast the crack growth rates in aluminum alloys. Through ex…
Air‑raid shelters: civil war heritage in Valencia city
2017
Memorial sites are an interesting part of the wide range of Spanish Civil War heritage. The city of Valencia preserves a large number of vestiges of that time, among them, more than three hundred air‑raid shelters. In this article we consider these bomb shelters, taking into account the new circumstances relating to this heritage, starting in 2017, when new legislative and management scenarios were set in motion. The approval of the Valencian Autonomous Community Law for Democratic Memory and Coexistence, a recent modification of the Valencian Cultural Heritage Act which expressly highlights civil war heritage, as well as unprecedented activity by the Valencia City Council regarding its pre…
Comparación del valor democrático de las discusiones de Facebook entre perfiles de candidatos políticos españoles a las elecciones generales de 2011
2017
This article examines the democratic value of user-generated comments on the Facebook profiles of three Spanish candidates during the Spanish General Election campaign of 2011 through a content analysis that operationalizes deliberative democracy. The findings show that these online spaces do not meet deliberative standards, but that they still serve democratic functions, such as citizen self-expression, democratic socialization and reinforcement of social cohesion among party activists and sympathizers. Moreover, results indicate that democratic value might vary depending on the size of the party where talk takes place. Political conversation on the walls of hegemonic candidates who belong…
Regime change and the convergence of democratic value orientations through socialization. Evidence from reunited Germany
2016
ABSTRACTTheories of socialization and political culture claim that public ideas about how a democracy should be shaped will only change slowly after regime changes. Thus, citizens’ value orientations should converge after a replacement of generations and through institutional learning. Pertaining to the development and convergence of individual conceptions of democracy or democratic value orientations, these assumptions have not yet been tested empirically. This article therefore provides an empirical test, drawing on the case of German reunification as a natural experiment. I analyse the development of democratic value orientations based on data from the sixth wave of the European Social S…