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A fixed-point current injection power flow for electric distribution systems using Laurent series
(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 ...
Youth unemployment during economic shocks: Evidence from the metal-mining prices super cycle in Chile
(2022-08-19)
We analyze the effect of an exogenous commodity shock on youth long-run unemployment, and the causal mechanisms that underlie this relationship. We use Chile as a study case and the Metal Mining Price Super Cycle between ...
ISeeU2: Visually Interpretable ICU mortality prediction using deep learning and free-text medical notes
(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 ...
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
(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 ...
Solar Photovoltaic Integration in Monopolar DC Networks via the GNDO Algorithm
(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 ...
An Efficient Methodology for Locating and Sizing PV Generators in Radial Distribution Networks Using a Mixed-Integer Conic Relaxation
(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 ...
Solving the Optimal Reactive Power Dispatch Problem through a Python-DIgSILENT Interface
(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 ...
A Resonant Ring Topology Approach to Power Line Communication Systems within Photovoltaic Plants
(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 ...
Politicidio de baja intensidad: exterminio territorializado del Partido Revolucionario de los Trabajadores (PRT) en el Caribe colombiano, 1991-2005
(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
(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. ...
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.