Universidad Tecnológica de Bolivar UTB (Colombia): últimos ingresos
Mostrando ítems 1881-1900 de 11668
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On the mathematical modeling for optimal selecting of calibers of conductors in DC radial distribution networks: An MINLP approach
(Cartagena de Indias, 2021-01-29)This paper addresses the problem of optimal conductor selection in direct current (DC) distribution networks with radial topology. A nonlinear mixed-integer programming model (MINLP) is developed through a branch-to-node ... -
Prediction of motorcyclist traffic crashes in Cartagena (Colombia): development of a safety performance function
(Cartagena de Indias, 2021-04-05)Motorcyclists account for more than 380 000 deaths annually worldwide from road tra c accidents. Motorcyclists are the most vulnerable road users worldwide to road safety (28% of global fatalities), together with cyclists ... -
Impact of Environmental Pollution in the Sustainability of Architectural Heritage: Case Study from Cartagena of India, Colombia
(Cartagena de Indias, 2021-12-24)Limited studies have been carried out in emerging nations on the correlation among the environmental pollution, economic factors, and architectural heritage. For this reason, this research presents an assessment of ... -
Girls Do Not Sweat: the Development of Gender Stereotypes in Physical Education in Primary School
(Cartagena de Indias, 2020-06-27)Despite efforts towards gender equality, from an early age, girls practice sport less than boys. Explaining this is paramount to psychology. Stereotypes about gender-appropriate behaviour play a key role in doing physical-sports ... -
MarkerPose: Robust Real-time Planar Target Tracking for Accurate Stereo Pose Estimation
(Cartagena de Indias, 2021-05-29)Despite the attention marker-less pose estimation has attracted in recent years, marker-based approaches still provide unbeatable accuracy under controlled environmental conditions. Thus, they are used in many fields such ... -
Optimal Demand Reconfiguration in Three-Phase Distribution Grids Using an MI-Convex Model
(Cartagena de Indias, 2021-06-24)The problem of the optimal load redistribution in electrical three-phase medium-voltage grids is addressed in this research from the point of view of mixed-integer convex optimization. The mathematical formulation of the ... -
High impedance fault modeling and location for transmission line
(Cartagena de Indias, 2021-04-07)A fault in a power system generates economic losses, security problems, social problems and can even take human lives. Therefore, it is necessary to have an efficient fault location strategy to reduce the exposure time ... -
Stabilization of MT-HVDC grids via passivity-based control and convex optimization
(Cartagena de Indias, 2021-04-30)This paper presents a model for stabilizing multi-terminal high voltage direct-current (MT-HVDC) networks with constant power terminals (CPTs) interfaced with power electronic converters. A hierarchical structure of ... -
¿Qué es y hacia dónde va la fotografía?
(Cartagena de Indias, 2021-07-01) -
Análisis de la relación entre la conducta de bullying y las funciones ejecutivas en niños y adolescentes escolarizados
(Cartagena de Indias, 2020-12)Si bien es conocida la existencia de asociaciones significativas entre las Funciones Ejecutivas (FFEE) y la agresión, el papel de las FFEE en el contexto del acoso escolar o bullying rara vez se ha examinado en poblaciones ... -
Optimal Selection of Conductors in Three-Phase Distribution Networks Using a Discrete Version of the Vortex Search Algorithm
(Cartagena de Indias, 2021-07-18)In this study, a new methodology is proposed to perform optimal selection of conductors in three-phase distribution networks through a discrete version of the metaheuristic method of vortex search. To represent the problem, ... -
La implementación de la ley de memoria histórica en la ciudad de la Coruña
(Cartagena de Indias, 2020-11-02)Se presenta en el siguiente artículo un estudio exploratorio sobre la aplicación en una ciudad española de tamaño medio de la denominada Ley de la Memoria Histórica (creada en el año 2007). A través de la heráldica y la ... -
Assessment of Steady and Unsteady Friction Models in the Draining Processes of Hydraulic Installations
(Cartagena de Indias, 2021-07-08)The study of draining processes without admitting air has been conducted using only steady friction formulations in the implementation of governing equations. However, this hydraulic event involves transitions from laminar ... -
Integrating perceptions of safety and bicycle theft risk in the analysis of cycling infrastructure preferences
(Cartagena de Indias, 2021-06-30)Cycling infrastructure development is an effective but expensive urban policy to encourage people to use bicycles. Although people usually prefer infrastructure with high cycling priority, authorities in some cities have ... -
Application of the Multiverse Optimization Method to Solve the Optimal Power Flow Problem in Direct Current Electrical Networks
(Cartagena de Indias, 2021-08-04)This paper addresses the optimal power flow problem in direct current (DC) networks employing a master–slave solution methodology that combines an optimization algorithm based on the multiverse theory (master stage) and ... -
Optimal Location and Sizing of DGs in DC Networks Using a Hybrid Methodology Based on the PPBIL Algorithm and the VSA
(Cartagena de Indias, 2021-08-11)In this paper, we propose a master–slave methodology to address the problem of optimal integration (location and sizing) of Distributed Generators (DGs) in Direct Current (DC) networks. This proposed methodology employs a ... -
Heuristic Methodology for Planning AC Rural Medium-Voltage Distribution Grids
(Cartagena de Indias, 2021-08-20)The optimal expansion of AC medium-voltage distribution grids for rural applications is addressed in this study from a heuristic perspective. The optimal routes of a distribution feeder are selected by applying the concept ... -
Impacts of the Inclusion of Distributed Generation on Congestion of Distribution Networks and in the Islanding Operation Capability
(Cartagena de IndiasCampus TecnológicoIngeniería Electrónica, 2021-12-15)The growing demand for electricity in the world has led to power systems having to constantly increase their generation capacity and expand their transmission and distribution systems. Consequently, distributed generation ... -
Implementation of an Energy Management Systemin Colombian Manufacturing - A MethodologicalApproach
(Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2021-12-15)This paper aims to analyze mechanisms such as theEnergy management systems approach in industry 4.0. The paperis a review of techniques for optimizing energy consumptionwith energy efficiency, advanced metering ... -
Implementation of an Energy Management System in Colombian Manufacturing - A Methodological Approach
(Cartagena de IndiasCampus TecnológicoIngeniería Electrónica, 2021-12-15)This paper aims to analyze mechanisms such as the Energy management systems approach in industry 4.0. The paper is a review of techniques for optimizing energy consumption with energy efficiency, advanced metering ...