59 research outputs found
Río Perdido en Monterrey
No full textI.O. En el reverso: "Alejandro Cartagena 2009", firma "Guadalupe 2008". De la serie: Suburbia Mexicana causa y efecto. Alejandro Cartagena; n. en Santo Domingo, República Dominicana en 1977. Desde 1990 reside en Monterrey, realiza estudios sobre Administración del Tiempo Libre en UMNE y Malaspina University, BC. Canadá. Comienza su actividad como fotógrafo a partir de 2004. Ha tomado cursos y talleres con artistas y curadores como Enrique Méndez de Hoyos, Gerardo Montiel Klint, Yolanda Andrade, Aristeo Jiménez, Mariana Gruener, Carmen Lozano, Carlos Aranda y Armando Cristeto entre otros. En 2005 realizó dos exposiciones individuales; "Fragmentos de la Isla" y "Fotografía y Texto" en el Corredor del Arte de San Nicolás de los Garza y en la Galería Regia de Monterrey, respectivamente. También participó en una serie de exposiciones colectivas entre las cuales destacan "Nuestra Fotografía 2005" en el Museo Metropolitano de Monterrey, "Estatal 05" en el V Encuentro de Fotografía de Nuevo León, "Gracias a la Vida" organizada por la Galería Emma Molina en San Pedro Garza García, entre otras. En el mismo año de 2005 obtiene menciones honoríficas en los concursos "Fotografía Juvenil de san Nicolás", "Nuevo León a través de la Lente" y "El Patrimonio Cultural de Nuevo León a través de sus Fotógrafos". Es co-creador del proyecto "Identidad: Nuevo León (www.identidadnl.com) ganador de la Beca FONECA 2005 del Consejo para la Cultura y las artes de Nuevo León. En 2006 presentó la individual "Espacios Habitables", curada por Marcela Torres, en la Casa de la Cultura de Nuevo León y en la Galería del Gran Parque de San Nicolás, e "Identidades: Nuevo León", curada por Carlos Aranda, en la Fototeca del Centro de las Artes. Recopilación e información obtenida por Mahali Vázquez, Centro de Documentación de la Fototeca Nacional del INAH, julio de 2010
Experimental validation of a vanadium redox flow battery model for state of charge and state of health estimation
No full text©2023. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/This study presents a vanadium redox flow battery model that considers the most important variables that have a crucial role in the performance of the system. A complete model divided in an electrochemical, thermal, hydraulic and voltage submodels is presented. The analytic analysis of the model is carried out to reduce the system order according to some conservation laws. Based on this analysis, a subsequent calibration of the model parameters is developed using real experimental data. The validation is performed comparing the real measured voltage and the one estimated with the model. To calibrate the model an algorithm based on the implementation of a particle swarm optimizer is used. Results obtained in both short and long-term operation are presented, in order to compare and validate if the model can be used for both state of charge and state of health estimation.This research has been developed within the CSIC Interdisciplinary
Thematic Platform (PTI+) Transición Energética Sostenible+ (PTI-
TRANSENER+) as part of the CSIC program for the Spanish Recovery,
Transformation and Resilience Plan funded by the Recovery and Re-
silience Facility of the European Union, established by the Regulation
(EU) 2020/2094, the Spanish Ministry of Science and Innovation
under projects MAFALDA (PID2021-126001OB-C31 and C32 funded by
MCIN/AEI/10.13039/501100011033/ERDF, EU), and MASHED, Spain
(TED2021-129927B-I00), and by the Spanish Ministry of Universities
funded by the European Union - NextGenerationEU (2022UPC-MSC-
93823).Peer reviewe
Derecho a la vida
Get PDFEl derecho a la vida a lo largo de los años ha adquirido más importancia, lo que ha permitido que al día de hoy sea un derecho fundamental. Este derecho debe ser protegido y respetado por el Estado, con regulaciones especificadas por medio de leyes que puedan defender la vida de las personas desde el momento en que nacen, ya que, desde el momento de la concepción, el ser humano tiene derecho a la vida el cual no puede ser vulnerado
Entre mares y ríos: diseño e implementación de una metodología de formación para adolescentes y jóvenes que potencie la cultura como herramienta de transformación a través de la producción de nuevas narrativas audiovisuales.
No full text“Entre mares y ríos” es un proyecto de formación dirigido a adolescentes y jóvenes afrodescendientes e indígenas del Pacífico y el Caribe colombiano. Su propósito es fortalecer las narrativas comunitarias y audiovisuales como herramientas creativas para la transformación social, la construcción de identidad y la generación de oportunidades. A través de un enfoque interseccional, pedagógico y de comunicación para el desarrollo, el proyecto capacitará a los participantes en la creación de piezas comunicativas que resignifiquen los saberes ancestrales y funcionen como actos de resistencia y memoria colectiva. Además, se implementará una estrategia de comunicación que garantice la circulación y visibilidad de los contenidos producidos, y se fomentará el intercambio de conocimientos entre jóvenes de ambas regiones, promoviendo alianzas que aseguren el impacto y la sostenibilidad del proceso.“Between seas and rivers” is a training project aimed at Afro-descendant and indigenous adolescents and young people from the Colombian Pacific and Caribbean. Its purpose is to strengthen community and audiovisual narratives as creative tools for social transformation, identity construction, and the generation of opportunities. Through an intersectional, pedagogical and communication approach for development, the project will train participants in the creation of communicative pieces that resignify ancestral knowledge and function as acts of resistance and collective memory. In addition, a communication strategy will be implemented to guarantee the circulation and visibility of the content produced, and the exchange of knowledge between young people from both regions will be encouraged, promoting alliances that ensure the impact and sustainability of the process
Vanadium redox flow battery state of charge estimation using a concentration model and a sliding mode observer
Get PDFVanadium redox flow batteries are very promising technologies for large-scale, inter-seasonal energy storage. Tuning models from experimental data and estimating the state of charge is an important challenge for this type of devices. This work proposes a non-linear lumped parameter concentration model to describe the state of charge that differentiates the species concentrations in the different system components and allows to compute the effect of the most relevant over-potentials. Additionally, a scheme, based on the particle swarm global optimization methodology, to tune the model taking into account real experiments is proposed and validated. Finally, a novel state of charge estimation algorithm is proposed and validated. This algorithm uses a simplified version of previous models and a sliding mode control feedback law. All developments are analytically formulated and formally validated. Additionally, they have been experimentally validated in a home-made single vanadium redox flow battery cell. Proposed methods offer a constructive methodology to improve previous results in this field.Peer ReviewedPostprint (published version
Online estimation of the state of charge and state of health of a vanadium redox flow battery
Get PDF12 figures, 2 tables.This study presents an online algorithm capable to simultaneously estimate the state of charge and state of health of a vanadium redox flow battery. Starting from a general electrochemical model, some order reductions are carried out considering different conservation laws. Based on these low-order models, the observer is designed considering the terminal voltage of the battery. This observer is firstly analyzed using numerical tools. Secondly, an experimental validation is carried out with real data provided by a vanadium redox flow battery stack, consisting on current and voltage measurements.This research has been developed within the CSIC Interdisciplinary Thematic Platform (PTI+) Transición Energética Sostenible+ (PTI-TRANSENER+) as part of the CSIC program for the Spanish Recovery, Transformation and Resilience Plan funded by the Recovery and Resilience Facility of the European Union, established by the Regulation (EU) 2020/2094, the Spanish Ministry of Science and Innovation under projects MAFALDA (PID2021-126001OB-C31 and C32 funded by MCIN/AEI/ 10.13039/501100011033/ERDF, EU) and MASHED (TED2021-129927B-I00), the European Union’s H2020 research and innovation programme under grant agreement number 963652 Project HYBRIS and by the Spanish Ministry of Universities funded by the European Union - NextGenerationEU (2022UPC-MSC-93823).Peer reviewe
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