Investigaciones: Envíos recientes
Mostrando ítems 381-400 de 1465
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Journalism industries in the internet era: The case of Colombian news media outlets in Google News Colombia
(Cartagena de Indias, 2020) -
Knowledge and myths among Colombian teachers about high intellectual abilities
(Cartagena de Indias, 2022)The objective of this study was to describe the knowledge and myths among Colombian teachers regarding students with High Intellectual Abilities (HIA), analyzing their relationship with sociodemographic variables of interest. ... -
Evaluation of academic productivity of citizen competencies in the teaching of engineering by using the Malmquist index
(Cartagena de Indias, 2020)This research analyzed productivity in the formation of citizen skills in engineering education. The population (57,520 students) included 92 Colombian undergraduate engineering degree programs (industrial, mechanical, ... -
Energy Management System for the Optimal Operation of PV Generators in Distribution Systems Using the Antlion Optimizer: A Colombian Urban and Rural Case Study
(Cartagena de Indias, 2022)This paper presents an Energy Management System (EMS) for solving the problem regarding the optimal daily operation of Photovoltaic (PV) distributed generators in Alternate Current (AC) distribution grids. To this effect, ... -
ENERGY EFFICIENCY CONDITION-BASED MAINTENANCE METHODOLOGY FOR COMPUTER ROOM AIR CONDITIONERS
(Cartagena de Indias, 2022)A Computer Room Air Conditioner (CRAC) system has been modeled and simulated to set up a Condition-based maintenance strategy oriented on the equipment's energy efficiency performance (MCEE). The modeling was performed ... -
Emotion detection through biomedical signals: A pilot study
(Cartagena de Indias, 2018)Emotions are affective states accompanied by physiological reactions that affect cognition processes such as decision making, perception, and learning. Emotion detection can be helpful in fields like education, sports and ... -
Representation of the spanish's history through the philately. Study of the stamps designed by gallego & rey
(Cartagena de Indias, 2020-10-01)The research presents a detailed analysis of all Spanish postage stamps created by the humorists Gallego and Rey, which intended to reflect the Spanish history. This peculiar kind of philatelic product, based on the ... -
El mundo de las criptomonedas
(Cartagena de Indias, 2022)The objectiveofinvestigation is to make short summaryincryptocurrencyinformation. Wellit is a virtual coin based on blockchain technology, which acts as an accountingbook in which operations are recorded and whichhas ... -
Efficient Integration of PV Sources in Distribution Networks to Reduce Annual Investment and Operating Costs Using the Modified Arithmetic Optimization Algorithm
(Cartagena de Indias, 2022)The optimal integration of photovoltaic generation systems is a challenge for distribution utilities since these devices have a direct impact on company finances due to the large amount of investment required at the beginning ... -
Efficient Day-Ahead Dispatch of Photovoltaic Sources in Monopolar DC Networks via an Iterative Convex Approximation
(Cartagena de Indias, 2023)The objective of this research is to propose an efficient energy management system for photovoltaic (PV) generation units connected to monopolar DC distribution networks via convex optimization while considering a day-ahead ... -
EFFICIENCY OF ACADEMIC ENGINEERING PROGRAMS IN COLOMBIA: AN APPROACH THROUGH DATA ENVELOPMENT ANALYSIS
(Cartagena de Indias, 2022)The purpose of this research is to assess the educational quality based on academic efficiency using three distinct data development analysis models, with the Engineering programs in Colombia serving as decision-making ... -
Efficiency Centered Maintenance of Preheat Train of a Crude Oil Distillation Unit
(Cartagena de Indias, 2020)Nowadays, maintenance is based on the synergistic integration of operational reliability and timely maintenance, which guarantees the required availability and optimal cost. Operational reliability implies producing more, ... -
Rural cooperatives: An opportunity to rethink the role of the State in the face of seed regulation effects in Colombia
(Cartagena de Indias, 2020-09-07)This paper analyzes the causes that affect the rural sector in Colombia, making farmers vulnerable. The situation is made worse as a result of the seed certification regime that prohibits farmers from replanting non-certified ... -
Scenario-Based Model for the Location of Multiple Uncapacitated Facilities: Case Study in an Agro-Food Supply Chain
(Cartagena de Indias, 2021-09-29)Supply chains for agricultural products have taken on great importance in recent times due to the need that exists for consumers to acquire fresh products in excellent quality conditions. In the design of supply networks ... -
Selection and Location of Fixed-Step Capacitor Banks in Distribution Grids for Minimization of Annual Operating Costs: A Two-Stage Approach
(Cartagena de Indias, 2022-06-27)The problem regarding the optimal location and sizing of fixed-step capacitor banks in distribution networks with radial configuration is studied in this research by applying a two-stage optimization approach. The first ... -
Sensitivity of Empirical Equation Parameters for the Calculation of Time of Concentration in Urbanized Watersheds
(Cartagena de Indias, 2022-09-13)settingsOrder Article Reprints Open AccessArticle Sensitivity of Empirical Equation Parameters for the Calculation of Time of Concentration in Urbanized Watersheds by Jamilton Echeverri-Díaz 1,Óscar E. Coronado-Hernández ... -
SIMALL: Emotional BDI Model for Customer Simulation in a Mall
(Cartagena de Indias, 2022-11-15)Modeling customer behavior and exploring the motivations that drive their actions within a shopping mall is the subject of study in multiple works, which has generated new theories in marketing and related areas. However, ... -
Sine-cosine optimization approach applied to the parametric estimation in single-phase transformers by considering voltage and current measures
(Cartagena de Indias, 2021-05-25)In this article, a combinatorial optimization approach for estimating the electrical parameters in single-phase distribution transformers by considering voltage and current measures is presented. A nonlinear programming ... -
Six Sigma method to assess the quality of the service in a gas utility company
(Cartagena de Indias, 2022-03-14)A method to evaluate the quality of service of a customer service centre is proposed based on Six Sigma, and through an empirical and rational approach that allowed an objective perspective during the development of the ... -
Detection of broken bars in three-phase motors by using curve fits and classification algorithms
(Cartagena de Indias, 2022)Since they transform electrical energy into mechanical energy, three-phase induction motors are one of the main assets that companies have. Therefore, good monitoring of their conditions and diagnosing their faults is ...
Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.
