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Publicación Modeling the generation and propagation of rain-triggered landslides(Universidad EAFIT, 2025-11-28) Rodríguez Díaz, Andrés Camilo; Ruiz Restrepo, Daniel FelipeSlope stability is of great importance when the associated hazard implies a risk of human and economic losses. When a morphodynamic process materializes, there is a possibility that it may evolve into a debris and mudflow, especially when the mobilized mass is large and the phenomenon occurs in mountainous or steeply sloping terrain, where the soil mass may be channeled through watercourses or low-lying areas of the landform. Currently, the numerical modeling of such landslide phenomena is mainly performed using limit equilibrium or finite element methods. However, these approaches present major limitations when dealing with large deformations. For example, the finite element method is constrained when oscillations between tensile and compressive stresses are generated. In addition, the discretized elements must remain connected; otherwise, the analysis fails to converge. This research proposes to model the initiation and propagation of a rain-induced, large-deformation landslide. The modeling is structured in two stages: i) simulation of transient rainfall and infiltration using FEM (Finite Element Method), to generate conditions where convergence cannot be reached before failure; ii) export of the FEM results, mainly pore pressures and stress states for each element, to serve as initial conditions in an MPM (Material Point Method) environment, where the movement of the failed mass is modeled according to the characteristics defined for an idealized slope representing natural conditions. To achieve this objective, a review of the numerical and constitutive bases of the methods was carried out, together with a survey of previous research on the numerical modeling of large-deformation landslides using the two approaches mentioned above. Subsequently, the geometry of an idealized slope was defined to allow predictive modeling. For this purpose, rainfall data and terrain parameters were selected from existing information for the Greater Medellín area and the Aburrá Valley in Colombia. For the rainfall input, thresholds defined by the Early Warning System of Medellín and the Aburrá Valley (SIATA), a local hazard and risk monitoring agency, were used. A rainfall threshold can be defined, in simplified terms, as the boundary between rainfall events that can potentially trigger mass movements, usually combining data on antecedent and triggering rainfall (90-day and 7-day windows in the SIATA case). For this study, three particular threshold scenarios were selected, producing three different combinations of antecedent and triggering rainfall. Finally, conclusions are drawn regarding the adaptation of the two-stage modeling approach for this type of landslide. The methodology takes advantage of the computational efficiency of FEM for simulating the initiation of mass movement, and of MPM for modeling the subsequent propagation of the soil mass across the topography. The study highlights the potential benefits for risk management of using low-cost basic information (rainfall thresholds) as an alternative to traditional and more expensive monitoring instruments such as inclinometers and piezometers.Publicación Aplicación de un modelo que permita estimar la capacidad operativa en gestión de pasajeros en los puntos de verificación de documentos y filtros de seguridad del aeropuerto José María Córdova(Universidad EAFIT, 2025-11-28) Monsalve Duque, Cristian Camilo; Ramírez Echeverri, Sergio Augusto; Sociedad Operadora de Aeropuertos Centro Norte, Airplan S. A. SSpace limitations and the growing passenger demand at the José María Córdova Airport have generated the need to innovate through different methods and methodologies to help optimize various passenger management resources, including technological equipment, infrastructure, and procedures. Through simulation tools and data analysis, the effective capacity of the entire passenger security screening process leading to the boarding gates will be determined. It is established that every passenger booking a flight with any airline operating in the terminal must, as a first step to enter the departure lounges, allow their ID and boarding pass to be verified by a security agent. Once the documentation is validated, the passenger must proceed to the designated area for cabin baggage X-ray screening and body scanning. The purpose of this is to detect items prohibited by authorities, which are considered a risk to civil aviation security. Currently, during peak operational hours, large numbers of passengers queue to begin their entry into the boarding areas. Given this situation, the aim is to determine the current processing capacity of document verification agents and X-ray machines. This is done using mathematical tools and statistical simulation to evaluate passenger behavior across different scenarios that reflect current dynamics and the growing demand. Once the installed capacity is determined, this information will serve as an input for the company's decision-making regarding the potential implementation of automated verifiers, the redistribution of service points, or equipment modernization, among others, which will ultimately impact the operation and its service levels.Publicación Método para la transformación de sitios web en activos digitales estratégicos : caso Comfama(Universidad EAFIT, 2025-11-21) González Alzate, Luis Felipe; Villegas Hincapié, Ángela CristinaPublicación Estrategia para la implementación de la metodología BIM en una Pyme colombiana(Universidad EAFIT, 2025-10-06) Mosquera Asprilla, Ramón David; Botero Botero, Luis FernandoThis research project focuses on acquiring new competencies in the BIM methodology as part of the process to obtain a master's degree in engineering at Universidad EAFIT. To this end, a study is conducted involving a small to medium-sized Colombian company, which undergoes an assessment of its BIM maturity and capability through the BIM Forum Colombia portal of the Colombian Chamber of Construction (CAMACOL). Subsequently, a BIM implementation proposal is developed, identifying the processes, people, and technologies required for its execution, based on the guidelines established in the BIM Forum Colombia implementation guides.Publicación Designing Short-Format Learning Experiences through Play and Storytelling : Teaching Flourishing Business Models in Colombia(Universidad EAFIT, 2025) Gil Pérez, María Alejandra; Vidal Ramírez, Alejandra; Vidal Ramírez, AlejandraPublicación Desarrollo de una metodología para la elaboración de modelos de exposición con fines de riesgo sísmico a partir de información censal. Caso de aplicación : Santiago de Cali, Colombia(Universidad EAFIT, 2025) Arenas Guzmán, Juliana; Acevedo Jaramillo, Ana BeatrizThis work presents a methodology to develop exposure models for residential buildings using data from the 2018 Colombian Population and Housing Census. An exposure model compiles information about the infrastructure of a location and the parameters that define its behavior under external loads; it is used together with hazard and vulnerability models in catastrophic risk analysis. Census data are valuable because they are public, cover the entire country, and allow estimation of relevant information such as number of buildings, number of floors, construction materials, and uses. The methodology uses the census level of disaggregation in urban areas (block level) and variables from housing surveys, such as wall material, socioeconomic level, and number of inhabitants. Based on these surveys, the number of residential buildings is estimated. In Cali, 326,382 buildings were identified with more than 1.7 million inhabitants. To assign structural typologies, three variables were used: number of housing units per building, socioeconomic level, and wall material; the latter correlates with structural typology, although it may be associated with multiple categories. For this study, information from 24,499 building surveys conducted by the Cali Mayor’s Office was used. The developed model made it possible to create an exposure scenario at the block level that includes number of buildings, structural typology, and inhabitants. Validation against existing models showed differences between 6–11%, values considered acceptable and consistent. The methodology is easy to implement and can be used by government entities to develop exposure models and support seismic risk assessment across the national territory.Publicación Estandarización y automatización del ciclo de vida de modelos de Machine learning en entornos empresariales mediante prácticas de MLOps(Universidad EAFIT, 2025) Escobar Diaz, Juan Esteban; Montoya Múnera, Edwin NelsonCurrently, the development and deployment of Machine learning (ML) models in enterprise environments face significant challenges related to reproducibility, scalability, and process automation. The absence of clear standards for managing the ML model lifecycle can lead to operational inefficiencies, data governance issues, and integration difficulties with production systems. This work proposes the implementation of an architecture based on a structured methodology following MLOps practices, aiming to standardize the development, deployment, and monitoring of ML models within the organization. The proposed methodology and architecture integrate modern tools and approaches to automate the ML pipeline, manage model versioning, enable production monitoring, and optimize computational resource usage.Publicación Evaluation of economic and environmental impacts of green H2 integration in biosyngas methanation(Universidad EAFIT, 2026) Rojas-Valderamma, Daniel Ignacio; García-Freite, Samira; SanJuan, Marco; Acosta, David; Aristizabal, Adriana; Botero, María Luisa; Builes, Santiago; Builes, Santiago; Botero, María Luisa; Aristizabal, Adriana; Maestría y trabajo de grado financiados por la alianza GreenGas entre la Universidad EAFIT, Promigas S.A. y su subsidiaria Transmetano S.A. (Acuerdo P2.0.002-2022).Publicación Reducción de sobreespesores de pavimento mediante procedimiento de superficie suavizada entre las desviaciones constructivas y la rasante de diseño en la superestructura de un puente(Universidad EAFIT, 2025) García Giraldo, Mateo; Agudelo Ospina, John JairoInfrastructure works are vital for the connectivity of regions and territories; therefore, it is essential that both their design and construction are safe, functional, comfortable, and aesthetically pleasing for users. However, construction deviations from the original design generally occur, inherent to human error or other factors such as climatic, site-specific, or technological constraints. While design codes account for tolerances regarding these deviations, they seldom provide solutions for cases where the permissible error is exceeded. In bridge engineering, these scenarios are particularly common, as these structures possess high degrees of flexibility, leading to greater susceptibility to deformations. For instances involving aesthetic deviations in the superstructure that do not result in functional detriment, this study proposes the generation of a smoothed surface. This "envelope-type" surface adapts to the as-built finish while aligning with the design profile, thereby preserving aesthetics and transit comfort. This approach aims to minimize asphalt overlay over-thickness where not required, preventing excessive dead loads and cost overruns, while harmonizing complementary elements such as traffic barriers or railings.Publicación Metodología gráfica para priorizar activos y definir estrategias de mantenimiento óptimas. Caso de estudio : flotas mineras(Universidad EAFIT, 2025) Trujillo-Peña, Juan Esteban; Martinod Restrepo, Ronald MauricioThe purpose of this paper is to present an integrated methodology to support strategic decision-making in maintenance management. This methodology is based on graphical analytical tools that use failure rate and mean time to repair as key indicators. Its main focus is the identification and prioritization of critical assets to simultaneously define the most appropriate maintenance strategies. To this end, it integrates four graphical analysis tools: first, the Total Risk Criticality Matrix; second, the Jack-Knife Diagram; third, the Cost Scatter Diagram; and fourth, the Decision-Making Grid. The development of the methodology is illustrated through a case study of five truck fleets operating in an open-pit coal mine in northern Colombia. The methodology then prioritizes one fleet of nine tanker trucks to complete all proposed steps. The results obtained allow for strategic focus on highly critical equipment and definition of maintenance strategies, thereby improving fleet operational availability and reducing costs associated with failures. This approach highlights the importance of adapting maintenance strategies according to the criticality and actual behavior of assets, with a view to offering a practical perspective on the application of graphical analysis tools in industrial maintenance management.Publicación Transformación digital en la construcción : estrategia para disminuir la fragmentación de procesos en empresas colombianas del sector(Universidad EAFIT, 2025) Jiménez Suaza, Juan Camilo; Botero Botero, Luis FernandoPublicación Geological Origin and Epistemic Uncertainty in Rockfill Dams : A Comprehensive Statistical Assessment of Material Properties and Design Parameters(Universidad EAFIT, 2025) Cardenas Restrepo, Luis Felipe; Ruiz Restrepo, Daniel FelipePublicación Análisis de clasificación para la mejora en la gestión del reabastecimiento de inventario : estudio de caso(Universidad EAFIT, 2025) Madrid Ramírez, Juan Pablo; Ramírez Echeverri, Sergio AugustoPublicación Proposal of a business model for energy transition through the 2 use of emerging technology in Spanish industry(Universidad EAFIT, 2025) Gutiérrez González, Lorenzo; Restrepo Giraldo, John DairoPublicación Modelo de visión artificial basado en detección de bordes para la generación de plantillas de tatuajes(Universidad EAFIT, 2025) Martínez Berrio, Socrates; Hincapie Montoya, Edwin Mauricio; Hincapie Montoya, Edwin MauricioPublicación Diseño de los modelos de abastecimiento para elementos comprados en una empresa que ensambla carrocerías para buses(Universidad EAFIT, 2025) Valencia Ospina, David; Restrepo Suárez, RodrigoPublicación Towards Detection of Fruit Ripening and Moniliophthora Roreri in Cocoa Using a Capacitive Sensor(Universidad EAFIT, 2025) López-Duque, Ossman Antonio; Rendón Velásquez, David; NingunoPublicación Sistema multiagente basado en modelos de lenguaje para optimizar la selección y asignación de talento en outsourcing(Universidad EAFIT, 2025) Álvarez-Petro, Oscar David; Martínez Vargas, Juan DavidPublicación Value Proposition Design and Product Market Fit for Energy Solution in the Mining and Metals Industry in Spain(Universidad EAFIT, 2025) Giraldo-Gómez, Sebastián; Restrepo Giraldo, John DairoPublicación Metodología de rediseño de empaques para el mejoramiento de la usabilidad(Universidad EAFIT, 2025) Campuzano Medina, Santiago; Guarín Grisales, Álvaro de Jesús