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Mostrando ítems 1012-1031 de 1392
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Passivity-based control for battery charging/discharging applications by using a buck-boost DC-DC converter
(IEEE Computer Society, 2018)In this paper, a passivity-based control (PBC) theory is applied to control a battery energy storage system (BESS) under current control mode by employing a bidirectional buck-boost DC-DC converter. The proposed controller ... -
Passivity-Based Control for Hydro-Turbine Governing Systems
(Institute of Electrical and Electronics Engineers Inc., 2018)In this paper an interconnection and damping assignment passivity-based control (IDA-PBC) applied to the hydro-Turbine governing systems (HTGS) is proposed to regulate the relative deviation of turbine speed in single ... -
Passivity-based control of islanded microgrids with unknown power loads
(Cartagena de IndiasCampus TecnológicoIngeniería Eléctrica, 2020-10-12)In this paper, the control problem of microgrids (MGs)operating in islanded mode is approached from a passivity-based control perspective. A control scheme is proposed that, relying only on local measurements for the power ... -
Passivity-based PI control of a SMES system to support power in electrical grids: A bilinear approach
(Elsevier Ltd, 2018)A bilinear proportional-integral (PI) controller based on passivity-based formulations for integrating superconducting magnetic energy storage (SMES) devices to power ac microgrids is proposed in this paper. A cascade ... -
Path Planning for Non-Playable Characters in Arcade Video Games using the Wavefront Algorithm
(Cartagena de Indias, 2020-11-18)Search and planning is a common Artificial Intelligence task on videogames development. This exercise covers the design of Non-player character (NPC) behavior, content generation, and narrative's construction. This work ... -
Patrimonio fotográfico y memoria contra la violencia en Cartagena de Indias
(Cartagena de IndiasCampus TecnológicoComunicación Social, 2024-06-12)Se presenta un proceso de recopilación de memorias comunitarias a través de la fotografía vernácula realizado en tres sectores periféricos de Cartagena de Indias (Colombia) afectados por la desigualdad y la violencia ... -
PBC approach applied on a DC-DC step-down converter for providing service to CPLs
(Institute of Electrical and Electronics Engineers Inc., 2019)This paper addresses the problem of output voltage regulation for step-down converters (buck converters) for constant power load (CPL) applications. The model of the CPL corresponds to a hyperbolic constraint that introduces ... -
PBC Approach for SMES Devices in Electric Distribution Networks
(Institute of Electrical and Electronics Engineers Inc., 2018)This express brief presents a nonlinear active and reactive power control for a superconducting magnetic energy storage (SMES) system connected in three-phase distribution networks using pulse-width modulated current-source ... -
PBC design for voltage regulation in buck converters with parametric uncertainties
(Cartagena de Indias, 2019-12-05)This paper addresses the problem of voltage output regulation in DC Buck converters from the passivity-based control (PBC) point of view. The PBC takes advantage of the natural port-Hamiltonian representation of dynamic ... -
Perceived stress during social isolation due to COVID-19 and cognitive impact on young university students
(Cartagena de Indias, 2022-02-14)The long-lasting and uncontrollable nature of confinement as a measure to slow down the spread of COVID-19 represents a source of extrinsic and chronic stress that could affect cognitive processes, especially memory. The ... -
Percepción y conocimiento del cambio climático : una mirada desde la comunidad de instructores del centro agroempresarial y minero del Sena regional Bolívar /
(2020)El cambio climático es un fenómeno ambiental de carácter global, de origen fundamentalmente antropogénico, que impone grandes desafíos para la humanidad por su gran impacto negativo sobre el desarrollo humano. El conocimiento ... -
Perception of working conditions on the quality of working life: Employees linked to health companies in Barranquilla, Colombia
(International Business Information Management Association, IBIMA, 2017)Working conditions and their interaction on Quality of Working Life (QWL) perception in health sector employees from Barranquilla-Colombia were studied and modeled in a sample of 333 people aged between 16 and 73 years ... -
Perceptions and experiences about Google News from the editors of Latin-American news media indexed in the editions of Colombia and Mexico
(Universidad Complutense de Madrid, 2018)News outlets of all sizes and trajectories are added to news aggregation services on the Web such as Google News, a situation that has caused to conflicts between parties in various parts of the world, including Latin-America. ... -
Perchlorate Contamination: Sources, Effects, and Technologies for Remediation
(Cartagena de Indias, 2021-12-10)Perchlorate is a persistent pollutant, generated via natural and anthropo genic processes, that possesses a high potential for endocrine disruption in humans and biota. It inhibits iodine fixation, a major reason for ... -
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 ... -
Perchlorate-Reducing Bacteria from Hypersaline Soils of the Colombian Caribbean
(Hindawi Limited, 2019)Perchlorate (ClO 4 - ) has several industrial applications and is frequently detected in environmental matrices at relevant concentrations to human health. Currently, perchlorate-degrading bacteria are promising strategies ... -
Perdurabilidad de las empresas del sector agrícola, después de la firma del tratado de libre comercio con los Estados Unidos, en el municipio de Cereté, Córdoba /
(2020)El caso de supervivencia y cierre de las empresas agrícolas ubicadas en el municipio de Cerete que han logrado permanecer y destacarse en medio de una crisis general del sector agrícola colombiano, que dentro de sus ... -
Perfil del docente inclusivo de básica primaria: orientado a la transformación del proceso formativo en las instituciones educativas oficiales del distrito de Cartagena-Colombia
(Cartagena de Indias, 2021-01-06)El objetivo del presente estudio es definir el perfil del docente inclusivo de básica primaria de instituciones educativas del Distrito de Cartagena, Colombia. Participaron 91 docentes pertenecientes a seis escuelas oficiales. ... -
Performance analysis of a microstrip patch antenna loaded with an array of metamaterial resonators
(Institute of Electrical and Electronics Engineers Inc., 2016)An analysis of the electrical performance of a microstrip patch antenna loaded with a periodic array of metamaterial resonators is presented in this work. Hexagonal complementary split ring resonators (CSRRs) are selected ... -
Performance Benchmarking of Stochastic and Deterministic Representation Bases with Compressive Sensing in Computerized Tomography Images
(Cartagena de Indias, 2020-12-24)Computerized tomography is a procedure that emits X-rays rotating around the body, projecting signals to be processed and converted to images. X-rays radiation in people may cause cardiovascular diseases, malformations in ...
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.