Investigaciones: Envíos recientes
Mostrando ítems 1001-1020 de 1465
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A validation strategy for a target-based vision tracking system with an industrial robot
(Cartagena de Indias, 2020-05-20)Computer vision tracking systems are used in many medical and industrial applications. Understanding and modeling the tracking errors for a given system aids in the correct implementation and operation for optimal measurement ... -
A Novel Full Boundary Element Formulation for Transient Analysis of Elastic Membranes Coupled to Acoustics Fluids
(Cartagena de Indias, 2020)A full time-direct Boundary Element Formulation for the dynamic analysis of elastic membranes coupled to acoustics fluid is presented. The elastic membranes is modeled using the classical linear elastic pre-stretched ... -
A Novel Full Boundary Element Formulation for Harmonic Analysis of Elastic Membranes Coupled to Acoustics Fluids
(Cartagena de Indias, 2020)A novel full Boundary Element Formulation for the harmonic analysis of elastic membranes coupled to acoustics fluid is presented. The elastic membranes is modeled using the classical linear elastic pre-stretched membrane ... -
A Machine Learning Approach for Severe Maternal Morbidity Prediction at Rafael Calvo Clinic in Cartagena-Colombia
(Cartagena de Indias, 2020-05-22)There is a huge problem in public health around the world called severe maternal morbidity (SMM). It occurs during pregnancy, delivery, or puerperium. This condition establishes risk for babies and women lives since it’s ... -
Optimal location and sizing of PV sources in DC networks for minimizing greenhouse emissions in diesel generators
(Cartagena de Indias, 2020-02-24)This paper addresses the problem of the optimal location and sizing of photovoltaic (PV) sources in direct current (DC) electrical networks considering time-varying load and renewable generation curves. To represent this ... -
On the nonlinear control of a single-phase current source converter for sinusoidal voltage generation
(Cartagena de Indias, 2020)Colombian power system is being transformed for the large-scale integration of renewable energy resources and energy storage systems; all of these are integrated by power electronic converters controlled by voltage and ... -
Numerical study of the stress concentration factor in geometries of machine elements using Ansys® and Inventor®
(Cartagena de Indias, 2020-01)In the present study the stress concentration factor by the finite element method in a round bar grooved axially under tension, a stepped flat plate subjected to bending and a stepped round bar subjected to torsion can be ... -
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 ... -
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 ... -
Learning styles for algebra concepts: The case of engineering students at the Universidad de Santander (Valledupar, Colombia)
(Cartagena de Indias, 2019)The objective of this research was to evaluate the learning styles for algebra concepts of the students of the industrial engineering program of the University of Santander, Valledupar, Cesar, Colombia. A descriptive study ... -
Estrategias de aprendizaje de estudiantes colombianos de grado y posgrado
(Cartagena de IndiasEconomía, 2020-01-01)Este artículo de investigación expone la importancia de la calidad del aprendizaje docente y analiza las estrategias de aprendizaje en estudiantes de grado y posgrado en educación.Se utilizó un muestreo no probabilístico ... -
Intelligent fault detection system for microgrids
(Cartagena de IndiasIngeniería Electrónica, 2020-03-06)The dynamic features of microgrid operation, such as on-grid/off-grid operation mode, the intermittency of distributed generators, and its dynamic topology due to its ability to reconfigure itself, cause misfiring of ... -
Instrument for selecting and evaluating suppliers in small and medium-sized metalworking enterprises in Cartagena, Colombia
(Cartagena de IndiasIngeniería Mecánica, 2020)The objective of this investigation is the definition of a practical tool that helps to improve the selection process and evaluation of suppliers in small and medium-sized metalworking enterprises in Cartagena city. For ... -
Influence of family and pedagogical communication on school violence
(Cartagena de IndiasComunicación Social, 2020-04-04)School violence alludes to peer bullying and aggression in school. The field of communication has studied school violence by analyzing the influence of media and interpersonal relationships on aggressive behaviors. This ... -
Infection parameters of Heterorhabditis amazonensis (Nematoda: Heterorhabditidae) in different stages of Hibiscus pink mealybug
(Cartagena de Indias, 2020)The pink hibiscus mealybug Maconellicoccus hirsutus (Hemiptera: Pseudococcidae) is an invasive pest of an enormous variety of crops and has become a concern in many parts of the world. Early attempts to control M. hirsutus ... -
Del biocentrismo a la seguridad humana: un enfoque en el marco del reconocimiento del páramo de Pisba como sujeto de derechos
(Cartagena de Indias, 2020-01)This paper discusses the status of mining operations vis-a-vis nature as a subject of rights to the extent that they represent a serious threat not only to the fauna and flora in the areas where mining takes place but also ... -
Evaluation of service quality by means of six sigma in a center of documentary attention in a university
(Cartagena de IndiasIngeniería Industrial, 2020)Esta investigación propone un método de evaluación de la calidad del servicio en un centro de atención documental en una universidad. Desde un enfoque cuantitativo y racional se estableció un método fundamentado en las ... -
Evaluation of semi-intensive green roofs with drainage layers made out of recycled and reused materials
(Cartagena de IndiasCampus TecnológicoIngeniería Mecánica, 2020-05-29)Green roof systems represent an opportunity to mitigate the effect of natural soil loss due to the development of urban infrastructure, which significantly affects natural processes such as the hydrological water cycle. ... -
Ethnicity, space and human development in poor urban communities: Commune 6 in cartagena de indias, Colombia
(Campus TecnológicoEconomía, 2020-07)Cartagena de Indias has the highest social exclusion among the main cities in Colombia. This paper evaluates human development and the determinants of poverty in the commune 6, where the Afro-Colombian population predominates. ... -
Economic dispatch of renewable generators and BESS in DC microgrids using second-order cone optimization
(Campus TecnológicoIngeniería Eléctrica, 2020-04-03)A convex mathematical model based on second-order cone programming (SOCP) for the optimal operation in direct current microgrids (DCMGs) with high-level penetration of renewable energies and battery energy storage systems ...
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.
