Optimización de técnicas de impresión para la fabricación de células solares orgánicas

El presente trabajo fin de máster se titula: “Optimización de Técnicas de Impresión para la Fabricación de Células Solares Orgánicas”, puesto que ese es su mayor objetivo, lograr la mejora de resultados utilizando distintos métodos de fabricación a los que se van a aplicar diversas variaciones respecto a su forma convencional de aplicación. El primer paso que nos proponemos es conseguir la fabricación de células solares orgánicas (OSC) con estructura de heterounión dispersa que presenten unos resultados de eficiencia razonables, determinando cuáles son las condiciones que nos llevan a ello para poder reproducirlas a posteriori metódicamente. Una vez definidas las condiciones de reproducibilidad, el siguiente objetivo será la variación de parámetros en los métodos de fabricación de éstas. Para nuestro trabajo vamos a centrarnos en las técnicas de deposición por spray y doctor blading, las cuales serán descritas en profundidad en apartados posteriores.Escuela Técnica Superior de Ingeniería IndustrialUniversidad Politécnica de Cartagen

Examining deterrence and backlash effects in counter-terrorism : the case of ETA

Scholars are increasingly drawing on models and theories from the field of Criminology to offer new insights on terrorist violence. A particularly useful framework by LaFree, Dugan, and Korte works from the assumption that illegal behaviour can be affected by the threat and/or imposition of punishment. It sees the results of the government's intervention in terms of deterrence (state's repressive action leads to a reduction in terrorism violence), and backlash (state's repressive action leads to defiance and retaliation, and to an upsurge of terrorism violence). This article applies this model to a case study of the government's responses to Euzkadi Ta Askatasuna (ETA). It uses a variation of survival analysis technique -Series Hazard- to assess the impact of six major initiatives on the risk of new ETA attacks in the period from 1977 to 2010. Mostly, the results provide support for both backlash interpretations, although important questions regarding interpretation are raised.PostprintPeer reviewe

Growth, thermal desorption and low dose ion bombardment damage of C60 films deposited on Cu(111)

Auger Electron Spectroscopy (AES), Low Energy Electron Diffraction (LEED) and Reflection Electron Energy Loss Spectrometry (REELS) were used to characterize the growth and thermal stability of C60 films deposited on Cu(111). By means of LEED we found that while C60 grows in an ordered fashion up to the first monolayer (ML) at room temperature (RT), it turns amorphous beyond that point. On the other hand, when the substrate temperature is kept at 450K films up to two ML with crystalline structure are obtained. For substrate temperatures beyond 570K thick films (more than 1 ML) do not grow at all. By using AES, we found that a thick C60 film starts to desorb at a temperature around 470K but the first monolayer remains stable up to temperatures as high as 900K. A monolayer with a better crystalline order is obtained after desorption than that growth with the substrate at RT or higher temperatures. When the substrate is heated at 970K, the first monolayer is not fully removed but the C60 molecular structure is altered or molecules break up into smaller pieces. The ion induced damage on C60 on Cu(111) films was studied for typical ions, incoming energies and irradiation doses used in Low Energy Ion Scattering (LEIS) experiments. The D-value of C(KLL) Auger spectra and the -plasmon of REELS, were monitored to characterize the damage caused to the film. We found that, at low doses ( 1014 ions/cm2), damage is only detectable for massive ions like Ar, but not for H and He in the 2-8 keV range.Fil: Bonetto, Fernando Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Materiales; ArgentinaFil: Vidal, Ricardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Física; ArgentinaFil: Quintero Riascos, Vanessa Alexandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; ArgentinaFil: Bonin, Claudio Julio. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; ArgentinaFil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química. Departamento de Materiales; Argentin

Chroma Key wthout Color Restrictions based on Asynchronous Amplitude Modulation of Background Illumination on Retroreflective Screens

A simple technique to avoid color limitations in image capture systems based on chroma key video composition using retroreflective screens and light-emitting diodes (LED) rings is proposed and demonstrated. The combination of an asynchronous temporal modulation onto the background illumination and simple image processing removes the usual restrictions on foreground colors in the scene. The technique removes technical constraints in stage composition, allowing its design to be purely based on artistic grounds. Since it only requires adding a very simple electronic circuit to widely used chroma keying hardware based on retroreflective screens, the technique is easily applicable to TV and filming studios.Vidal Rodriguez, B.; Lafuente, JA. (2016). Chroma Key wthout Color Restrictions based on Asynchronous Amplitude Modulation of Background Illumination on Retroreflective Screens. Journal of Electronic Imaging. 25(2):230091-230095. doi:10.1117/1.JEI.25.2.023009S23009123009525

Albendazole Solid Dispersions: Influence of Dissolution Medium Composition on In Vitro Drug Release

The rate-limiting step to drug absorption is often dissolution from the dosage form, especially for poorly soluble com-pounds. Two possibilities for improving the dissolution of these drugs are to increase the available surface area and to im-prove their apparent solubilities under physiologically relevant conditions with surfactants as wetting agents. Albendazole (ABZ), one of the most effective broad-spectrum antihelminthic agents, has a very low aqueous solubility, which leads to an erratic availability. Solid dispersions (SD) with different amounts of carriers (P188 and PEG6000) were formulated to improve the ABZ dissolution rate. When the dissolution test is used to infer biopharmaceutical properties of the dosage form, it is es-sential that the method simulates the gastrointestinal conditions. The objective of this study was to examine the applicabil-ity of different dissolution media to the evaluation of ABZ and ABZ-SD dissolution rates. Dissolution profiles were performed by the official method (0.1 N HCl) and Simulated Gastric Fluid modified with a surfactant. Wetting was evaluated through the determination of surface tension and contact angle of the solutions. The dissolution rate of ABZ was clearly affected by the variables assessed in this study. These results have implications in the design of physiologically based dissolution media.Fil: González Vidal, Noelia Luján. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Biología, Bioquímica y Farmacia. Cátedra de Control de Calidad de Medicamentos; ArgentinaFil: Castro, Silvina Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica; ArgentinaFil: Sanchez Bruni, Sergio Fabian. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Ciencias Veterinarias. Departamento de Fisiopatología. Laboratorio de Farmacología; ArgentinaFil: Allemandi, Daniel Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica; ArgentinaFil: Palma, Santiago Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Unidad de Investigación y Desarrollo en Tecnología Farmacéutica; Argentin

Data-driven supervised fault diagnosis methods based on latent variable models: a comparative study

[EN] A comparison among widely used multivariate latent variable-based techniques for supervised process fault diagnosis was carried out. In order to assess their overall performance several diagnosis criteria were proposed (C-1: most suspected fault assignment; C-2: threshold-based fault assignment). Additionally, it was evaluated i) how the size of the training set used to build the latent variable models affected the diagnosis ability of the methods under study, ii) how they behaved under new types of failures not included in the original list of fault candidates and iii) which of them were more suitable for either early or late diagnosis. To accomplish all these objectives, the approaches were tested in different scenarios. Two datasets were analysed: the first was generated by a Simulink-based model of a binary distillation column, while the second relates to a pasteurisation process performed in a laboratory-scale plant.This research work was partially supported by the Spanish Ministry of Economy and Competitiveness under the project DPI2017-82896-C2-1-R and Shell Global Solutions International B.V. (Amsterdam, The Netherlands).Vidal-Puig, S.; Vitale, R.; Ferrer, A. (2019). Data-driven supervised fault diagnosis methods based on latent variable models: a comparative study. Chemometrics and Intelligent Laboratory Systems. 187:41-52. https://doi.org/10.1016/j.chemolab.2019.02.006S415218

Indagaciones en torno a una interpretación de la memoria colectiva acerca de la revelación, en el caso de algunos relatos autobiográficos sobre la experiencia religiosa del sujeto

Licenciado (a) en Ciencias ReligiosasPregrad

Historiografía y geometría: Ventura Rodríguez y la iglesia de San Marcos en Madrid

Frente al lugar común sobre el conocimiento y la apreciación crítica de esta obra de arquitectura, basado fundamentalmente en la referencia historiográfica a diversos modelos y en el supuesto entramado geométrico de un conjunto de elipses, a veces óvalos, se propone aquí una distinta interpretación de la estructura formal y espacial de la iglesia, deducida de una atención preferente a la obra de arquitectura utilizando los recursos específicamente disciplinares de la misma, en especial del dibujo, evidenciando la conveniencia de una constante revisión crítica de nuestra historiografía arquitectónica

Estimator stability analysis in SLAM

IFAC Symposium on Intelligent Autonomous Vehicles (IAV), 2004, Lisboa (Portugal)This work presents an analysis of the state estimation error dynamics for a linear system within the Kalman filter based approach to Simultaneous Localization and Map Building. Our objective is to demonstrate that such dynamics is marginally stable. The paper also presents the necessary modifications required in the observation model, in order to guarantee zero mean stable error dynamics. Simulations for a one-dimensional robot and a planar vehicle are presented.This work was supported by the project 'Supervised learning of industrial scenes by means of an active vision equipped mobile robot.' (J-00063).Peer Reviewe