Investigaciones: Envíos recientes
Mostrando ítems 241-260 de 1465
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Classification of Cognitive Evoked Potentials for ADHD Detection in Children using Recurrence Plots and CNNs
(Cartagena de Indias, 2021)Attention-deficit/hyperactivity disorder (ADHD) is a common childhood-onset condition characterized by difficulty paying attention and hyperactivity. The diagnosis of ADHD is made from psychological tests and electroence ... -
Control of a DC-DC converter with dual active bridges to adapt voltage levels in DC microgrids using feedback linearization
(Cartagena de Indias, 2022)En este trabajo, se propone una estrategia de control para un convertidor DC-DC con puentes duales activos que interconecta dos alimentadores de una microrred de DC. La estrategia de control propuesta, permite regular la ... -
Control of Photovoltaic Plants Interconnected via VSC to Improve Power Oscillations in a Power System
(Cartagena de Indias, 2022)This paper presents an integrated methodology applied to photovoltaic (PV) plants for improving the dynamic performance of electric power systems. The proposed methodology is based on primary frequency control, which adds ... -
Control System for Project Management in a Construction Sector Company through the Earned Value Technique in the Caribbean
(Cartagena de Indias, 2022)The present research work generates a solution to some inconveniences presented in an organization that executes construction projects, which has presented problems of delays in the works, cost overruns in the activities ... -
Corneal endothelium assessment in specular microscopy images with Fuchs’ dystrophy via deep regression of signed distance maps
(Cartagena de Indias, 2023)Specular microscopy assessment of the human corneal endothelium (CE) in Fuchs’ dystrophy is challenging due to the presence of dark image regions called guttae. This paper proposes a UNet-based segmentation approach that ... -
Cost estimation guidelines for private architectural projects, based on a single classification model
(Cartagena de Indias, 2020) -
Counting integers representable as images of polynomials modulo n
(Cartagena de Indias, 2019)Given a polynomial f(x1,x2,…,xt) in t variables with integer coefficients and a positive integer n, let α(n) be the number of integers 0 ≤ a < n such that the polynomialcongruencef(x1,x2,…,xt) ≡ a(modn)issolvable. ... -
Cov-caldas: A new COVID-19 chest X-Ray dataset from state of Caldas-Colombia
(Cartagena de Indias, 2022)The emergence of COVID-19 as a global pandemic forced researchers worldwide in various disciplines to investigate and propose efficient strategies and/or technologies to prevent COVID-19 from further spreading. One of the ... -
Citizen participation in popular festivals in Colombian Caribbean region: A Quantitative Analysis of Carnival of Barranquilla and Independence Feasts of Cartagena
(Cartagena de Indias, 2022)The research analyzes the citizen participation in cultural activities, in particular, in the most popular celebrations in the Colombian Caribbean region, the Carnival of Barranquilla Carnival and the Independence Feasts ... -
COVID-19 Preparedness and Response by Global South and Global North Countries: A Comparative Analysis
(Cartagena de Indias, 2022)Comparing the countries’ level of preparedness and response to the Covid-19 pandemic involves the assessment of human development, health, connectivity and death rate indicators. In this study, information published by the ... -
Creation of business profiles of exporting companies through unsupervised learning
(Cartagena de Indias, 2019)This research presents a method for the creation of business profiles of export companies in the city of Barranquilla - Colombia. The method is supported by the development of unsupervised data learning techniques, Principal ... -
Cyberattacks Predictions Workflow using Machine Learning
(Cartagena de Indias, 2021)This research aims to validate the effectiveness of a machine learning model composed of three classifiers: decision tree, logistic regression, and support vector machines. Through the design of a workflow, we demonstrate ... -
Derivative-Free Power Flow Solution for Bipolar DC Networks with Multiple Constant Power Terminals
(Cartagena de Indias, 2022)This paper analyzes the power flow solution in bipolar direct current networks with radial structures considering multiple monopolar and bipolar constant power loads. The electrical configuration of the bipolar DC grid ... -
Design of a control with multiple inputs multiple outputs by decoupling
(Cartagena de Indias, 2021)In industry, most processes can be modeled by a system of equations that can be monovariable or multivariable. In our case, we will present a multivariable system more adjusted to real cases and on which a control system ... -
Design of a governance model for a specific phase of projects in the refining and petrochemical sector in Cartagena-Colombia
(Cartagena de Indias, 2022)This document proposes a governance model for one of the most critical phases of the life cycle of the refining and petrochemical sector projects, taking as a reference the best practices from the technical point of view ... -
Design of a knowledge management system for project management of a Chamber of Commerce in the Caribbean Region in Colombia
(Cartagena de Indias, 2021)Knowledge management is one of the most important aspects within the organizational development since its function allows the growth and improvement of the company. This research is oriented to the design of a knowledge ... -
The executive functions as predictors of the academic performance of college students
(Cartagena de Indias, 2020)In this paper, we study the relationship between Executive Functions (EF) and academic performance, analyzing by means of EF cognitive measures if working memory, inhibitory control, cognitive flexibility and categorization ... -
Design of a management system for lessons learned for project management
(Cartagena de Indias, 2020)La gestión del conocimiento utiliza las Lecciones Aprendidas como una de las herramientas más populares para compartir el conocimiento de los proyectos. Las Lecciones Aprendidas ayudan a mejorar los procesos organizacionales ... -
Design of an Instrument to Evaluate Organizational Design Characteristics Based on the Organizational Configuration Model
(Cartagena de Indias, 2022)The purpose of this article was to design and validate an instrument to determine relevant variables of the business environment, demeanor, and organizational behaviors linked to the Organizational Configuration Model and ... -
Design of an integrated quality management system for Colombian higher education academic programs
(Cartagena de Indias, 2021)In this research study an integrated quality management system is proposed for academic programs in Colombian higher education by considering the Colombian legal requirements and high quality accreditation guidelines, and ...
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.
