Listar Productos de investigación por título
Mostrando ítems 255-274 de 1393
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Black hole-wormhole transition in (2+1)-dimensional Einstein-anti-de Sitter gravity coupled to nonlinear electrodynamics BLACK HOLE-WORMHOLE TRANSITION in (2+1)- ⋯ PEDRO CAÑATE and NORA BRETON
(American Physical Society, 2018)In this paper we present two results in (2+1) gravity coupled to nonlinear electrodynamics. First we determine the general form of the electromagnetic field tensor in (2+1) gravity coupled to nonlinear electrodynamics in ... -
Black-Hole Optimization Applied to the Parametric Estimation in Distribution Transformers Considering Voltage and Current Measures
(Cartagena de Indias, 2021-10-09)The problem of parametric estimation in single-phase transformers is addressed in this research from the point of view of metaheuristic optimization. The parameters of interest are the series resistance and reactance as ... -
Blind restoration of retinal images degraded by space-variant blur with adaptive blur estimation
(2013)Retinal images are often degraded with a blur that varies across the gield view. Because traditional deblurring algorithms assume the blur to be space-invariant they typically fail in the presence of space-variant blur. ... -
Bots and gender profiling on twitter using sociolinguistic features notebook for PAN at CLEF 2019
(CEUR-WS, 2019)Unfortunately, in social networks, software bots or just bots are becoming more and more common because malicious people have seen their usefulness to spread false messages, spread rumors and even manipulate public opinion. ... -
Boundary element analysis of laminated composite shear deformable shallow shells
(Elsevier Ltd, 2018)In this work, a Boundary Element Method formulation for stress analysis of symmetrically laminated composite thick shallow shells is presented. The proposed formulation was obtained by coupling the boundary element formulation ... -
Boundary element analysis of shear deformable shallow shells under harmonic excitation
(Tech Science Press, 2014)In this work, the harmonic analysis of shallow shells using the Boundary Element Method, is presented. The proposed boundary element formulation is based on a direct time-domain integration using the elastostatic fundamental ... -
Bracing alternatives in tapered frames under wind loads
(2009)The level of risk caused by forces of the nature could be reduced with an appropriate intervention of vulnerability, since such threats cannot be reduced. One of the alternatives to reduce the structural vulnerability of ... -
Bridged composite right/left handed unit cell with all-pass and triple band response
(2012)A modified design of the composite right/left handed (CRLH) unit cell showing all-pass and triple band response is proposed. By using an additional inductance which cross-couples the input and output ports of the conventional ... -
C 3 matching for asymptotically flat spacetimes
(Institute of Physics Publishing, 2019)We propose a criterion for finding the minimum distance at which an interior solution of Einstein's equations can be matched with an exterior asymptotically flat solution. The location of the matching hypersurface is thus ... -
Cadena de suministro verde en la industria de la construcción /
(2020)La gestión de la cadena de suministro verde (GSCM) ha ganado mucha atención en la última década debido a los efectos climáticos y los daños al medio ambiente provocado por la industrialización (Angell y Robert, 1999). Esto ... -
Calculated Torque Control of a Planar Parallel Robot 2-RR
(Cartagena de Indias, 2022)This paper introduces the design, structure and control method of a five-bar planar mechanism with five revolute joints and two degrees of freedom. The control is realized by calculating the torque in the joint space to ... -
Calidad de vida laboral en Cartagena, Barranquilla y Santa Marta
(Cartagena de Indias, 2021-02-05)Recientemente, las principales ciudades del Caribe colombiano han alcanzado las menores cifras de desempleo en el país. Sin embargo, presentan altas tasas de informalidad. Así, este artículo tiene como objetivo analizar ... -
Cambios en el periodismo y su impacto en la autonomía profesional: evidencia del estudio The Worlds of Journalism en siete países de América Latina
(Cartagena de IndiasCampus Tecnológico, 2022-12-28)Los debates en torno al futuro del periodismo posibilitaron numerosas investigaciones sobre sus cambios en el nuevo contexto hiperdigitalizado. Sin embargo, se desconoce su impacto en la libertad de prensa, específicamente ... -
Cambios en el periodismo y su impacto en la autonomía profesional: evidencia del estudio The Worlds of Journalism en siete países de América LatinaA New Route of Valorization of Petrochemical Wastewater: Recovery of 1,3,5-Tris (4-tert-butyl-3-hydroxy-2,6-dimethyl benzyl)–1,3,5-triazine-2,4,6-(1H,3H,5H)-trione (Cyanox 1790) and Its Subsequent Application in a PP Matrix to Improve Its Thermal Stability
(Cartagena de IndiasCampus Tecnológico, 2023-02-21)The various chemicals in industrial wastewater can be beneficial for improving its circularity. If extraction methods are used to capture valuable components from the wastewater and then recirculate them throughout the ... -
Camera-projector calibration methods with compensation of geometric distortions in fringe projection profilometry: A comparative study
(Sociedad Espanola de Optica, 2018)The calibration methods most used in fringe projection profilometry are based on models of least squares adjustment and stereo vision techniques. However, the geometric distortions of the projector and camera lenses introduce ... -
Capacidades culturales, educación cultural y revitalización de las Fiestas de Independencia : El caso de la Institución Educativa Madre Gabriela San Martín (Cartagena de Indias, Colombia) /
(2020)Este trabajo tiene como propósito caracterizar y analizar bajo el enfoque cultural del desarrollo la experiencia de educación cultural de la Institución Educativa Madre Gabriela San Marín en Cartagena. Se identifican las ... -
Capital Budgeting and Inflation
(John Wiley and Sons, 2013) -
Capital humano, una apuesta por la competitividad del turismo en Colombia /
(2020)Colombia ha considerado al turismo como un sector que debe potencializarse para fortalecer su aporte a la economía del país, en este sentido se han desarrollado estrategias que permitan convertirlo en un sector competitivo ... -
Career Recommendation System for Validation of Multiple Intelligence to High School Students
(Cartagena de Indias, 2021)Career choice is a critical moment for any student. However, many students worldwide change of path during the first academic year. Vocational tests are tools to help students choose an upper education career by providing ... -
Caribbean Beauty
(Cartagena de Indias, 2022)
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.