Universidad Tecnológica de Bolivar UTB (Colombia): últimos ingresos
Mostrando ítems 201-220 de 11668
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ARE WE THERE YET? GENDER QUOTAS IN UNIVERSITY HIERARCHIES: THE CASE OF COLOMBIA
(Cartagena de Indias, 2022)The year 2022 was set as the deadline in the Colombian National Development Plan for reaching gender parity in all public directives. As we approach the time limit, this study takes the lead on examining the impact of the ... -
Are digital twins improving urban-water systems efficiency and sustainable development goals?
(Cartagena de Indias, 2023)The use of these new interaction tool implies the improvement of the awareness of the whole system and it lies in improving the sustainability and efficiency of the water systems with the integration of measurements. The ... -
Approximated mixed-integer convex model for phase balancing in three-phase electric networks
(Cartagena de Indias, 2021)With this study, we address the optimal phase balancing problem in three-phase networks with asymmetric loads in reference to a mixed-integer quadratic convex (MIQC) model. The objective function considers the minimization ... -
Applying the Crow Search Algorithm for the Optimal Integration of PV Generation Units in DC Networks
(Cartagena de Indias, 2023)This paper presents an efficient master–slave methodology to solve the problem of integrating photovoltaic (PV) generators into DC grids for a planning period of 20 years. The problem is mathematically formulated as ... -
Applications that promote ecological and lifestyle habits for both people and companies [Definición del problema]
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Thermal Energy Replacement Potential in a Slaughter Plant From Rumen Pellets
(Cartagena de IndiasCampus Tecnológico, 2020-11-19)In this work, steam generation was studied using natural gas or rumen as energy sources in a slaughter plant that sacrifices 7500 cattle per month, with consumption 0.5749 kg/s of saturated steam at 624 kPa. For a slaughtered ... -
Design, Assembly and Working Modes of Spherical 3-RRR Coaxial Parallel Robot
(Cartagena de Indias, 2021)Design, configuration and operation modes of spherical 3-_RRR coaxial parallel robot were performed. A mathematical analysis of the robot was made, which consists of inverse and forward kinematic using geometric and numerical ... -
Application of the SSA for Optimal Reactive Power Compensation in Radial and Meshed Distribution Using D-STATCOMs
(Cartagena de Indias, 2022)This paper deals with the problem regarding the optimal placement and sizing of distribution static compensators (D-STATCOMs) in radial and meshed distribution networks. These grids consider industrial, residential, and ... -
Application of the Multiverse Optimization Method to Solve the Optimal Power Flow Problem in Alternating Current Networks
(Cartagena de Indias, 2022)In this paper, we solve the optimal power flow problem in alternating current networks to reduce power losses. For that purpose, we propose a master–slave methodology that combines the multiverse optimization algorithm ... -
Three-dimensional analysis of air-admission orifices in pipelines during hydraulic drainage events
(Cartagena de Indias, 2022-11-07)Air valves operate as protection devices in pipelines during drainage processes in order to mitigate vacuum pressures and control the transient flows. Currently, different authors have proposed one-dimensional models to ... -
Application of the Hurricane Optimization Algorithm to Estimate Parameters in Single-Phase Transformers Considering Voltage and Current Measures
(Cartagena de Indias, 2022)In this research paper, a combinatorial optimization approach is proposed for parameter estimation in single-phase transformers considering voltage and current measurements at the transformer terminals. This problem is ... -
Application of the Generalized Normal Distribution Optimization Algorithm to the Optimal Selection of Conductors in Three-Phase Asymmetric Distribution Networks
(Cartagena de Indias, 2023)This article addresses the problem of the optimal selection of conductors in asymmetric three-phase distribution networks from a combinatorial optimization perspective, where the problem is represented by a mixed-integer ... -
Application of the arithmetic optimization algorithm to solve the optimal power flow problem in direct current networks
(Cartagena de Indias, 2022)This article presents a methodology to solve to the Optimal Power Flow (OPF) problem in Direct Current (DC) networks using the Arithmetic Optimization Algorithm (AOA) and Successive Approximation (SA). This master-slave ... -
Three-dimensional simulation of transient flows during the emptying of pipes with entrapped air
(Cartagena de IndiasCampus Tecnológico, 2023-04-01)Two-and three-dimensional analyses of transient flows considering the air-water interaction have been a challenge for researchers due to the complexity in the numerical resolution of the multiphase during emptying in ... -
Application of Newton–Raphson Method for Computing the Final Air–Water Interface Location in a Pipe Water Filling
(Cartagena de Indias, 2023)The estimation of thermodynamic behavior during filling processes with entrapped air in water pipelines is a complex task as it requires solving a system of algebraic-differential equations. A lot of different numerical ... -
APPLICATION OF A PCA-BASED FAULT DETECTION AND DIAGNOSIS METHOD IN A POWER GENERATION SYSTEM WITH A 2 MW NATURAL GAS ENGINE
(Cartagena de Indias, 2022)Based on increasing global energy demand, electric power generation from Internal Combustion Engines (ICE) has increased over the years. On this idea, the industries have adopted different methods and procedures to prevent ... -
To tax or not to tax sin goods: that’s the question for emerging economies
(Cartagena de Indias, 2023)In times of crisis and budgetary pressures, world governments (specially from emerging economies) look more decisively for alternative sources of income generation. One such alternative is the so-called “sin taxes’’. Many ... -
Anthropic impact assessment of coastal ecosystems in the municipality of Puerto Colombia, NE Colombia
(Cartagena de Indias, 2019)Bolívar, M.; Rivillas-Ospina, G.; Fuentes, W.; Guzmán, A.; Otero, L.; Ruiz, G.; Silva, R.; Mendoza, E.; Maza, M.; García, L., and Berrío, Y., 2019. Anthropic impact assessment on coastal ecosystems in the municipality of ... -
Annual Operating Costs Minimization in Electrical Distribution Networks via the Optimal Selection and Location of Fixed-Step Capacitor Banks Using a Hybrid Mathematical Formulation
(Cartagena de Indias, 2022)The minimization of annual operating costs in radial distribution networks with the optimal selection and siting of fixed-step capacitor banks is addressed in this research by means of a two-stage optimization approach. ... -
Analysis of the relationship between bullying behavior and executive functions in schoolchildren
(Cartagena de Indias, 2021)Though significant associations are known to exist between Executive Functions (EFs) and aggression, the role of EFs in the context of bullying has rarely been examined in populations of the Caribbean Region of Colombia. ...