Investigaciones: Envíos recientes
Mostrando ítems 641-660 de 1465
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Una propuesta de desarrollo socioeconómico para el Turismo Náutico en Manzanillo del Mar en Cartagena, Colombia /
(2020)Esta investigación es de importancia para la propuesta del desarrollo socioeconómico en la oferta Turística de Cartagena en general debido a la escasez de productos de Turismo Náutico y soluciones que complementen y ... -
Reflexión para el fomento del emprendimiento de alto impacto en el ecosistema empresarial de la ciudad de Cartagena /
(2020)En gran medida se ha hablado de la importancia del desarrollo de emprendimientos para la dinámica económica y social de un país o una región en particular; es de suma importancia entender el porqué de la necesidad de crear ... -
Politicidio de baja intensidad: exterminio territorializado del Partido Revolucionario de los Trabajadores (PRT) en el Caribe colombiano, 1991-2005
(Cartagena de Indias, 2021-12-18)El siguiente artículo analiza el politicidio del Partido Revolucionario de los Trabajadores (PRT) ocurrido luego de la firma del acuerdo de paz entre esta guerrilla y el Gobierno colombiano en 1991. Se muestra cómo los ... -
La religión como estrategia de afrontamiento en los estudiantes universitarios : una revisión teórica
(Cartagena de Indias, 2022-05-01)Se presenta en este artículo científico un análisis de la documentación existente obtenida en Scopus (2012-2020) acerca de las estrategias de afrontamiento religioso que poseen los estudiantes universitarios y su utilidad. ... -
A Discrete-Continuous PSO for the Optimal Integration of D-STATCOMs into Electrical Distribution Systems by Considering Annual Power Loss and Investment Costs
(Cartagena de Indias, 2022-07-14)Currently, with the quick increase in global population, the energetic crisis, the environmental problematic, and the development of the power electronic devices generated the need to include new technologies for supporting ... -
Editorial to the Special Issue on “Ocular Imaging for Eye Care”
(Cartagena de Indias, 2022-07-08)The need for fast, inexpensive, and robust medical technology is now more crucial than ever. Ocular imaging and visual performance assessment are integral parts of ophthalmic examination, and are necessary for many clinical ... -
Modified Spatio-Temporal Matched Filtering for Brain Responses Classification
(Cartagena de Indias, 2022-08)In this article, we apply the method of spatio-temporal filtering (STF) to electroencephalographic (EEG) data processing for brain responses classification. The method operates similarly to linear discriminant analysis ... -
Dataset of traffic accidents in motorcyclists in Bogotá, Colombia
(Cartagena de Indias, 2022-07-05)According to the World Health Organization, in 2016, Colombia obtained the tenth position worldwide, the third in the continent and the second in South America, according to the accident rate of 9.7 motorcycle fatalities ... -
A Resonant Ring Topology Approach to Power Line Communication Systems within Photovoltaic Plants
(Cartagena de Indias, 2022-08-09)Within this study, single-cable propagation facilitated by PV strings’ wiring characteristics is considered for an adapted design of PLC electronics. We propose to close the communications signal path, resulting in a ... -
Solving the Optimal Reactive Power Dispatch Problem through a Python-DIgSILENT Interface
(Cartagena de Indias, 2022-07-25)The Optimal Reactive Power Dispatch (ORPD) problem consists of finding the optimal settings of reactive power resources within a network, usually with the aim of minimizing active power losses. The ORPD is a nonlinear and ... -
An Efficient Methodology for Locating and Sizing PV Generators in Radial Distribution Networks Using a Mixed-Integer Conic Relaxation
(Cartagena de Indias, 2022-07-27)This paper proposes a new solution methodology based on a mixed-integer conic formulation to locate and size photovoltaic (PV) generation units in AC distribution networks with a radial structure. The objective function ... -
Concerning Dynamic Effects in Pipe Systems with Two-Phase Flows: Pressure Surges, Cavitation, and Ventilation
(Cartagena de Indias, 2022-07-31)The risks associated with unsteady two-phase flows in pressurized pipe systems must be considered both in system design and operation. To this end, this paper summarizes experimental tests and numerical analyses that ... -
Solar Photovoltaic Integration in Monopolar DC Networks via the GNDO Algorithm
(Cartagena de Indias, 2022-08-05)This paper focuses on minimizing the annual operative costs in monopolar DC distribution networks with the inclusion of solar photovoltaic (PV) generators while considering a planning period of 20 years. This problem is ... -
Cost-Effectiveness Analysis of Strategies of COVID-19 Vaccination in Colombia: Comparison of High-Risk Prioritization and No Prioritization Strategies With the Absence of a Vaccination Plan
(Cartagena de Indias, 2022-05-26)Objectives: Our study compares two national COVID-19 vaccination plan strategies—high-risk prioritization and no prioritization—and estimates their cost-effectiveness compared with no vaccination, to generate possible ... -
A mixed-integer second-order cone model for optimal siting and sizing of dynamic reactive power compensators in distribution grids
(Cartagena de Indias, 2022-06-20)The problem of the optimal placement and sizing of dynamic reactive power compensators in AC distribution networks is addressed in this paper from convex optimization. The exact mixed-integer nonlinear programming (MINLP) ... -
Perchlorate-reducing bacteria from Antarctic marine sediments
(Cartagena de Indias, 2022-08-08)Perchlorate is a contaminant that can persist in groundwater and soil, and is frequently detected in diferent ecosystems at concentrations relevant to human health. This study isolated and characterised halotolerant ... -
ISeeU2: Visually Interpretable ICU mortality prediction using deep learning and free-text medical notes
(Cartagena de Indias, 2020-05-20)Accurate mortality prediction allows Intensive Care Units (ICUs) to adequately benchmark clinical practice and identify patients with unexpected outcomes. Traditionally, simple statistical models have been used to assess ... -
Solid-state photocatalysis for plastics abatement: A review
(Cartagena de Indias, 2022-06-17)The COVID-19 pandemic has caused a dramatic increase in plastic wastes associated with the use of single-use masks, gloves, gowns, and other personal protective equipment (PPE). The accumulation of PPE, especially single-use ... -
A fixed-point current injection power flow for electric distribution systems using Laurent series
(Cartagena de Indias, 2022-07-02)his paper proposes a new power flow (PF) formulation for electrical distribution systems using the current injection method and applying the Laurent series expansion. Two solution algorithms are proposed: a Newtonlike ... -
A successive approximations method for power flow analysis in bipolar DC networks with asymmetric constant power terminals
(Cartagena de Indias, 2022-07-02)This paper deals with the power flow problem in bipolar direct current distribution networks with unbalanced constant power loads. The effect of the neutral wire is considered in two prominent cases: (i) when the system ...
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.
