Universidad Tecnológica de Bolivar UTB (Colombia): últimos ingresos
Mostrando ítems 41-60 de 11668
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Subordinación de la mujer en los libros educativos de Cartagena
(Cartagena de IndiasCampus TecnológicoPsicología, 2023-05-22)Introducción. El sexismo es un patrón cognitivo y comportamental en el cual la figura masculina atribuye a la femenina caracteres que reflejan vulnerabilidad e indefensión alrededor de todas las dimensiones del desarrollo. ... -
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(Cartagena de Indias, 2023) -
Statistical Approach for Computing Base Flow Rates in Gaged Rivers and Hydropower Effect Analysis
(Cartagena de Indias, 2023-06-27)The calculation of base flow rates in rivers is complex since hydrogeological and hydrological studies should be performed. The estimation of base flow rates in storm hydrograph associated to various return periods is ... -
Different Experimental and Numerical Models to Analyse Emptying Processes in Pressurised Pipes with Trapped Air
(Cartagena de Indias, 2023-06-29)In hydraulic engineering, some researchers have developed different mathematical and numerical tools for a better understanding of the physical interaction between water flow in pipes with trapped air during emptying ... -
Analyzing traffic conflicts and the behavior of motorcyclists at unsignalized three-legged and four-legged intersections in Cartagena, Colombia
(Cartagena de IndiasCampus TecnológicoIngeniería Industrial, 2023-07-14)Introduction: The global motorcycle market has grown significantly, with over 770 million vehicles estimated to be in use worldwide. Motorcycle-related road traffic deaths in low and middle-income countries (LMICs) like ... -
Comparing Journalistic Role Performance Across Thematic Beats: A 37-Country Study
(Cartagena de IndiasCampus TecnológicoComunicación Social, 2023-06-29)Studies suggest that, at the routine level, news beats function as unique “micro-cultures.” Exploring this “particularist” approach in news content, we compare how the interventionist, watchdog, loyal, service, infotainment, ... -
Abundance and distribution of cigarette butts on the sand of five touristic beaches in Latin America during the COVID-19 pandemic
(Cartagena de Indias, 2023-07-15)Cigarette butts (CB) and cigarette butt fibers (CBF) are highly abundant and frequent residues on beach sand. Also, they are hazardous waste due to their significant toxicity and potential risk to the ecosystems’ biota ... -
In-situ imaging and electrochemical monitoring of damaged thermal spray aluminium coating in synthetic seawater
(Cartagena de IndiasCampus TecnológicoIngeniería Mecánica, 2023-07-14)This paper presents the results of a study that combined electrochemical monitoring with in-situ imaging of Thermal Spray Aluminium (TSA) coating in synthetic seawater at room temperature in quiescent condition. The coatings ... -
Evaluation of the Effects of Anxiety on Electro-Physiological Evoked Responses to Emotion-Related Stimuli
(29/07/2023)Anxiety is a feeling of fear and uncertainty that can negatively affect social behavior. Understanding the impact of anxiety on social cognition is essential. This work presents an approach for the acquisition and processing ... -
Speckle interferometry single-shot applications with multiple carrier-fringe information
(Cartagena de Indias, 2023-06-15)The need for robust equipment that allows identifying defects or measuring small displacements in a harsh environment has been a requirement in the aeronautical and principally in the Oil & Gas industry. In this field, ... -
Polarization study in Newtonian telescope components for depolarization parameter correction in atmospheric LiDAR
(Cartagena de Indias, 2023-06-12)In the present work, an experimental system is implemented, and a theoretical model is built that allows quanti fying atmospheric depolarization in the city of Santiago de Cali, Colombia. The experimental setup uses a ... -
Equivalence of categories of simple Lie algebras in positive characteristic
(Cartagena de IndiasCampus Tecnológico, 2022-07-18)In this paper we first study some properties of the finite-dimensional simple restricted Lie algebras. In the literature is found a one-to-one correspondence between them and finite-dimensional simple Lie algebras over a ... -
Posición de supremacía de los clubes de futbol en relación con el futbolista profesional en materia de transferencias deportivas en Colombia
(2021)Tomando como referencia los fenómenos que explican las relaciones de poder entre los individuos dentro de un sistema de índole capitalista y mercantilista, se nota cómo la supremacía de quien posee los medios económicos ... -
Optimal integration of D-STATCOM in distribution grids for annual operating costs reduction via the discrete version sine-cosine algorithm
(Cartagena de Indias, 2022)This paper deals with the problem of the optimal placement and sizing of distribution static compensators (D-STATCOM) in electrical distribution networks to reduce the total annual operative costs associated with the total ... -
Data-driven topology detector for self-healing strategies in Active Distribution Networks
(Cartagena de IndiasCampus Tecnológico, 2023-01-09)The integration of distributed energy resources requires the implementation of control and automation functionalities in distribution networks, which allow them to operate in a more flexible, efficient, and reliable way. ... -
Optimal Integration of Battery Systems in Grid-Connected Networks for Reducing Energy Losses and CO2 Emissions
(Cartagena de Indias, 2023)This work addressed the problem regarding the optimal integration of battery systems (BS) in grid-connected networks (GCNs) with the purpose of reducing energy losses and CO2 emissions, for which it formulates a mathematical ... -
Optimal Allocation and Sizing of PV Generation Units in Distribution Networks via the Generalized Normal Distribution Optimization Approach
(Cartagena de Indias, 2022)The problem of optimal siting and dimensioning of photovoltaic (PV) generators in medium-voltage distribution networks is addressed in this research from the perspective of combinatorial optimization. The exact mixed-integer ... -
Optimal Reactive Power Compensation in Distribution Networks with Radial and Meshed Structures Using D-STATCOMs: A Mixed-Integer Convex Approach
(Cartagena de Indias, 2022-11-10)This paper deals with the problem regarding the optimal siting and sizing of distribution static compensators (D-STATCOMs) in electrical distribution networks to minimize the expected total annual operating costs. These ... -
On the Optimal Reconfiguration of Radial AC Distribution Networks Using an MINLP Formulation: A GAMS-Based Approach
(Cartagena de Indias, 2022)This paper addresses the problem of the optimal reconfiguration of medium-voltage distribution networks by proposing a mixedinteger nonlinear programming (MINLP) model. The objective function of this optimization model is ... -
On the fractal properties of cosmic rays and Sun dynamics cross-correlations
(Cartagena de Indias, 2022)We investigate the cosmic rays and ten physical parameters of heliosphere behavior considering the scaling features of their temporal evolution. Our analysis start with the cosmic rays measurements by a neutron monitor ...