Browsing Investigaciones by Title
Now showing items 944-963 of 1467
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Narrativas para la emergencia del perdón, la reparación y la reconciliación en víctimas del conflicto armado en Colombia
(Cartagena de Indias, 2020-01-01)En los procesos de construcción de paz en Colombia, perdonar, reconciliarse y buscar la reparación de las víctimas se vuelven condiciones necesarias y decisivas. Estudios precedentes indican que cuando no son abordados ... -
Narrative review of the HPV vaccine case in El Carmen de Bolivar, Colombia (2014-2021)
(Cartagena de Indias, 2022)Introduction: in 2014 hundreds of teenage women in the rural municipality of El Carmen de Bolivar (Colombia) experienced strange symptoms after being vaccinated with Gardasil, one of the vaccines against Human Papillomavirus ... -
Natural language content evaluation system for multiclass detection of hate speech in tweets using transformers
(Cartagena de IndiasCampus TecnológicoMaestría en Ingeniería, 2023-12-05)In natural language processing, accurate categorization of tweets, including detecting hate speech, plays a pivotal role in efficient information organization and analysis. This paper presents a Natural Language Contents ... -
Natural language contents evaluation system for multi-class news categorization using machine learning and transformers
(Cartagena de IndiasCampus TecnológicoMaestría en Ingeniería, 2023-12-05)The exponential growth of digital documents has come with rapid progress in text classification techniques in recent years. This paper provides text classification models, which analyze various steps of news classification, ... -
"Navegando por Cartagena" : una iniciativa turística para el desarrollo local sostenible /
(2020)Cuando las actividades turísticas se desarrollan en un marco en el que se ignoran las implicaciones ambientales, las denominadas externalidades, pueden iniciar un proceso en el cual los factores ambientales, lejos de ser ... -
Network resource mobilisation limitations and the alliance portfolio network
(Cartagena de Indias, 2021-03-11)Purpose –The purpose of this study is to examine how access and mobilisation of network resources influence a firm’s performance. It has been established that alliance portfolio (AP) network parameters shape the access to ... -
Neural High Order Sliding Mode Control for Doubly Fed Induction Generator based Wind Turbines
(Cartagena de Indias, 2022)Wind energy has many advantages because it does not pollute and is an inexhaustible source of energy. In this paper Neural High Order Sliding Mode (NHOSM) control is developed for Doubly Fed Induction Generator (DFIG) based ... -
Neuro-fuzzy control for artificial pancreas: In silico development and validation
(Cartagena de Indias, 2020)Type 1 Diabetes Mellitus (DMT1) is currently one of the most harmful diseases that affect people of any age, including children from birth. Exogenous insulin injections remain the most common treatment for these patients, ... -
Neuro-fuzzy inverse optimal control incorporating a multistep predictor as applied to T1DM patients
(Cartagena de Indias, 2020)Emerging technologies seek to provide effective solutions to the most severe health problems such as type 1 diabetes mellitus (T1DM). In fact, the number of diabetics around the world has increased as well as the mortality ... -
New Scenarios, Actors, and Educational Practices Where Coexistence, Diversity, and Culture Are Built
(Cartagena de Indias, 2022)Introduction. Colombia has a variety of territories, people, cultures, political, and religious affiliations; however, it has been affected by a history of violence, inequality, corruption, among other evils, associated ... -
Newman–Janis Ansatz in conformastatic spacetimes
(Springer New York LLC, 2016)The Newman–Janis Ansatz was used first to obtain the stationary Kerr metric from the static Schwarzschild metric. Many works have been devoted to investigate the physical significance of this Ansatz, but no definite answer ... -
Los niveles del conocimiento para el diseño curricular de las facultades de derecho
(Cartagena de IndiasCasa Lemaitre, 2023-06-30)Los resultados de aprendizaje previstos para los programas de las facultades de derecho determinan qué deben alcanzar quienes aprenden al finalizar el proceso de formación. No obstante, algunos de estos diseños curriculares ... -
Noise-Robust Processing of Phase Dislocations using Combined Unwrapping and Sparse Inpainting with Dictionary Learning
(Institute of Electrical and Electronics Engineers Inc., 2019)The problem of phase unwrapping from a noisy and also incomplete wrapped phase map arises in many optics and image processing applications. In this work, we propose a noise-robust approach for processing regional phase ... -
Nonlinear analysis and control of a reaction wheel pendulum: Lyapunov-based approach
(Elsevier B.V., 2019)This paper presents a nonlinear analysis, control, and comparison of controllers based on the dynamical model of the reaction wheel pendulum (RWP) in a tutorial style. Classical methodologies such as proportional integral ... -
Nonlinear Analysis for the Three-Phase PLL: A New Look for a Classical Problem
(Institute of Electrical and Electronics Engineers Inc., 2018)In this paper we investigate the dynamics of the classic synchronous reference frame phase-locked-loop (PLL) from a non-linear perspective. First, we demonstrate the nonlinear differential equations that describe the PLL ... -
Nonlinear control for a DC–DC converter with dual active bridges in a DC microgrid
(Cartagena de IndiasCampus Tecnológico, 2022-10-29)This work presents a new control strategy for a DC–DC converter with dual active bridges used to interconnect two feeders in a DC microgrid. The proposed control strategy allows regulating the output voltage of the converter ... -
Nonlinear control for battery energy storage systems in power grids
(IEEE Computer Society, 2018)This paper presents a nonlinear control strategy to integrate Battery Energy Storage Systems (BESS) in electrical power systems connected through Voltage Source Converters (VSCs). Exact feedback linearization control ... -
Nonlinear voltage control for three-phase dc-ac converters in hybrid systems: An application of the pi-pbc method
(Cartagena de Indias, 2020-05-20)In this paper, a proportional-integral passivity-based controller (PI-PBC) is proposed to regulate the amplitude and frequency of the three-phase output voltage in a direct-current alternating-current (DC-AC) converter ... -
Novel 3D bio-macromolecular bilinear descriptors for protein science: Predicting protein structural classes
(Academic Press, 2015)In the present study, we introduce novel 3D protein descriptors based on the bilinear algebraic form in the ℝn space on the coulombic matrix. For the calculation of these descriptors, macromolecular vectors belonging to ... -
Novel global and local 3D atom-based linear descriptors of the Minkowski distance matrix: theory, diversity–variability analysis and QSPR applications
(Kluwer Academic Publishers, 2015)A new family of alignment-free 3D descriptors based on TOMOCOMD-CARDD framework has been designed, namely 3D-linear indices. In this report, we have proposed the use of a generalized form of the geometric pairwise atom-atom ...
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.
