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Item type:Publication, Communism, political power and personal freedom in Marx(Springer International Publishing, 2021-11-23) - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Prospects and Challenges of Nuclear Power Integration in Colombia and Peru(RELX Group (Netherlands), 2023-01-01) - Some of the metrics are blocked by yourconsent settings
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Item type:Publication, Understanding power dynamics in contemporary times: A book review of Frameworks of Power(Fundação Getulio Vargas, Escola Brasileira de Administração Pública e de Empresas, 2025-01-01)9 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Regeneration of Deteriorated Internal Combustion Engine Components used in Thermal Power Plants(2025-01-30)The generation of electric power through internal combustion engines plays an important role in the world economy. Exhaust cases and valves are critical engine components and are subjected to high pressures and temperatures. The additive remanufacturing technology of mechanical components that have reached the end of their useful life due to wear, through the L-DED laser directed energy deposition method, proves to be an effective method to obtain spare parts with similar or even superior characteristics to a new part, extending the product life cycle in the circular economy. The process consists of obtaining 3D models through reverse engineering, additive remanufacturing by L-DED and final machining. It was determined through the study that this methodology can be successfully applied to the exhaust boxes and valves of internal combustion engines for electric generation. The results obtained have shown that this remanufacturing method is an effective solution for the recovery of exhaust boxes and valves that have completed their useful life and can be applied to other engine elements, reducing the cost of the spare part compared to a new one and bringing with it important environmental benefits. In reference to the remanufacturing time, it has been determined that the application of the L-DED process in the exhaust boxes and valves is 3943 and 3677 s respectively. In addition to this time, the time used in the initial preparation and final machining must be added; however, the time is substantially less than the manufacturing of a new spare part, which brings with it an increase in the availability of these spare parts to perform scheduled maintenance in the engines for power generation, contributing to improve the efficiency of the national electric system.2 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Radio Victoria y las mediaciones comunitarias: un análisis de la comunicación en contextos locales(2026-04-01)La investigación examina el papel de Radio Victoria en el municipio de Las Tunas, Cuba, como sistema de mediaciones comunitarias entre 2021 y 2024, desde la perspectiva de la sociología de la comunicación. Basada en los aportes de la comunicación para el cambio social y en autores como Orozco Gómez y Martín Barbero, la radio se concibe más allá de su función técnica y programática, asumiéndose como actor social y territorial en la construcción de la realidad, la producción simbólica y la articulación de agendas públicas. El estudio, de enfoque cualitativo, descriptivo, analítico y longitudinal, se sustentó en el análisis de las parrillas programáticas y fuentes documentales. Los resultados muestran una evolución de un modelo musical-informativo hacia una programación diversificada con funciones socioculturales, identitarias, generacionales y educativas. Sin embargo, persisten limitaciones estructurales por la ausencia de programas dirigidos a la vulnerabilidad social y al desarrollo municipal.1