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Envíos recientes

  • Item type:Ítem,
    Determinación del efecto de la rigidización de suelos blandos en los asentamientos de terraplenes viales mediante métodos clásicos de la mecánica de suelos
    (Universidad Distrital Francisco José de Caldas)
    Álvarez Rojas, Paula Lizeth
    ;
    Quintero Leyton, Johan Ricardo
    ;
    Clavijo Rincón, Andrés Horacio
    This research addresses the behavior of soft soils used as support for road embankments, which present high compressibility and low capacity to withstand loads without developing significant deformations. This condition can generate settlements over prolonged periods and affect the performance and service life of road structures. In this context, the study analyzes the influence of different surface soil improvement techniques on the geotechnical behavior of soft soils, considering the changes that these techniques can produce in their consolidation and deformation properties. The research includes a review of the fundamental concepts related to soft soils, the consolidation process, and the main surface improvement techniques used in geotechnical engineering. Subsequently, a mathematical model based on Terzaghi's one-dimensional consolidation theory is established to represent soil behavior under the application of a load corresponding to a road embankment. The model is implemented in MATLAB to analyze the evolution of excess pore water pressure, degree of consolidation, and settlement over time. A parametric analysis is conducted using different scenarios representing natural and improved soil conditions, mainly modifying the coefficient of consolidation Cv and the coefficient of volumetric compressibility mv. In this way, the research evaluates the influence of these parameters and determines how soil improvement strategies can modify the response of soft soils under embankment loading. The results indicate that the combined modification of soil deformability and consolidation properties produces a more favorable ground response.
  • Item type:Ítem,
    Ballroom: ritual afro trans maricon. Teatralidades contemporáneas
    (Universidad Distrital Francisco José de Caldas)
    Rozo Muñoz, Laura Fernanda
    ;
    Sánchez Gutiérrez , Rafael Alfonso
    ;
    Sánchez Gutiérrez, Rafael Alfonso [0000-0003-0092-7095]
    This text explores the performing and scenic manifestations of the Ballroom community's gatherings in Bogotá, Colombia. This scene has mainly welcomed sex- and gender-dissident youth who find in the runway, eroticism, the expression of their sexuality, voguing, and other dances a space for self-exaltation, celebration, and healthy competition through balls, vogue nights, and kiki sessions. This study seeks to identify the ritual and scenic characteristics of these encounters.
  • Item type:Ítem,
    Análisis técnico y económico para creación de una empresa dedicada a las soluciones de energías renovables en el departamento de La Guajira
    (Universidad Distrital Francisco José de Caldas)
    Díaz Peña, Camilo Ernesto
    ;
    Gómez Aguilar, Vanessa
    ;
    Murillo Rondón, Fred Geovanny
    ;
    Murillo Rondón, Fred Geovanny [0000-0003-0966-958X]
    This undergraduate thesis presents the formulation and financial evaluation of a business plan aimed at establishing an engineering firm specialized in the design, procurement, installation, and maintenance of solar photovoltaic systems in La Guajira, Colombia. The project addresses the region's exceptional solar irradiance alongside the persistent energy deficit in its Non-Interconnected Zones (ZNI) and remote communities. The operational framework strictly complies with national electrical regulations (RETIE and NTC 2050), integrates social responsibility through community consultation and the recruitment of local Wayúu labor, and ensures environmental sustainability by replacing diesel generators and establishing an end-of-life WEEE waste management strategy. From a financial perspective, the venture requires an initial investment of COP $105,900,000 (funded by 40% equity and 60% bank debt). Over a 5-year projection horizon, the evaluation demonstrates strong economic viability, yielding a Net Present Value (NPV) of COP $388,420,150, an Internal Rate of Return (IRR) of 52.4% E.A. (against a 12.0% discount rate), and a payback period of 2.3 years. The operational break-even point is established at 16 projects per year, confirming the model's structural resilience and commercial feasibility in the Caribbean region.
  • Item type:Ítem,
    Construcción del aula virtual en la temática de generación comunitaria a partir de energías renovables
    (Universidad Distrital Francisco José de Caldas)
    Puentes Cifuentes, Carol Alexandra
    ;
    Mendivelso Niño, Carolina
    ;
    Buriticá Arboleda, Clara Inés
    ;
    Buriticá Arboleda, Clara Inés [0000-0003-4073-3471]
    This undergraduate project, developed as an internal internship, aimed to create a virtual classroom on community-based generation from renewable energy sources in order to strengthen the competencies of current and prospective energy community leaders within the context of Colombia's Just Energy Transition. The methodology included the review and organization of academic, technical, and regulatory sources; the development of the reference framework; the design of educational content and teaching resources; and the structuring of a 25-hour virtual training program, validated with expert guidance. As a result, the module was organized into seven thematic sessions and an integrative workshop covering energy communities, the regulatory framework, solar energy, wind energy, biomass, small hydropower plants, emerging technologies, hybrid systems, impacts, and criteria for selecting alternatives. The virtual classroom proposes a progressive sequence that connects technical foundations with the social, organizational, economic, and territorial conditions required to formulate and sustain community projects. It is concluded that contextualized training is essential to reduce knowledge gaps, promote informed participation, and foster community ownership of energy solutions. Furthermore, technology selection should be based on an assessment of the resource, energy demand, territory, organizational capacity, and regulatory framework, while integrating technical, economic, social, and environmental sustainability criteria.
  • Item type:Ítem,
    El metal: Historia y pedagogía colombiana
    (Universidad Distrital Francisco José de Caldas.)
    López Perdomo , Juan Sebastián
    ;
    Rodríguez Rodríguez , Humberto Alexis
    ;
    Rodríguez Rodríguez, Humberto Alexis [0000-0002-2279-9883]
    Metal music has historically been stigmatized and marginalized due to its aggressive sound and its break from conventional canons. However, this initial rejection overlooks the profound critical content of its lyrics, which directly confront oppressive states, global wars, the dominance of world powers over other countries, police violence, and socio-environmental crises. Beyond a simple manifestation of sonic rebellion, metal constitutes a discursive corpus endowed with a deep awareness and reflection on global issues.By shifting this analysis to the Latin American stage and, specifically, to the Colombian case, this research delves into how this counterculture transcended mere aesthetic expression to face a relentless repressive machinery. In Colombia, the metal scene clashed with the morals of a deeply conservative and Catholic society, the systematic persecution by law enforcement, and the atrocious violence of paramilitarism. In the face of the intolerance and terror experienced by the country, metal emerged as a form of protest and resistance.Based on the articulation between what is understood as counterculture, the historical memory of the national armed conflict, and the analysis of a critical corpus of songs, this work exposes how these musical and lyrical expressions document youth resistance. Finally, based on these results, a pedagogical product is proposed aimed at teaching history and critical thinking within the Colombian context, recognizing the importance of countercultures to understand and transform our social reality
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