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Mostrando ítems 1041-1060 de 1392
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Physical-aware pattern selection for stuck-at faults
(Institute of Electrical and Electronics Engineers Inc., 2017)The stuck-at faults are basic faults that fail the chips. Various defects in the circuit can develop into stuck-at faults. To detect more defects caused by stuck-at faults, some of the fault sites may need to be detected ... -
Physico-Chemical and structural interpretation of discrete derivative indices on N-tuples atoms
(MDPI AG, 2016)This report examines the interpretation of the Graph Derivative Indices (GDIs) from three different perspectives (i.e., in structural, steric and electronic terms). It is found that the individual vertex frequencies may ... -
PI-PBC Approach for Voltage Regulation in Cuk Converters with Adaptive Load Estimation
(Cartagena de Indias, 2020-11-25)This paper proposes a proportional-integral passivity-based controller (PI-PBC) for supporting voltage in linear loads integrated with Ćuk converters. An adaptive load estimator is also employed to avoid current measurements ... -
Pixel-wise rational model for a structured light system
(Cartagena de Indias, 2023-05-15)This Letter presents a novel structured light system model that effectively considers local lens distortion by pixel-wise rational functions. We leverage the stereo method for initial calibration and then estimate the ... -
Plan de acción para la creación de condiciones necesarias que den cumplimiento a los requerimientos del decreto 1072 de 2015 referente al sistema de gestión de seguridad y salud en el trabajo en la empresa HBL infraestructura integral S.A.S. De la ciudad de Cartagena
(2021)En el presente trabajo, basados en la ISO 45001 y abordando el marco legal regido en la república de Colombia, más específicamente en el Decreto 1072 de 2015, se crea un plan de acción que le permita a la empresa HBL ... -
Plan de mejora en el nivel de madurez organizacional en gerencia de proyectos para cinco pymes del sector de la metalmecánica en Cartagena /
(2020)Los diferentes modelos de madurez para gestión de proyectos, han sido ideados para grandes empresas y muy pocos estudios han centrado su interés en las características de las Pymes, el conocimiento de estos modelos por ... -
Plan estratégico hacia la innovación, caso : MLS Central de Servicios Veterinarios /
(2020)En un mundo tan competitivo e internacionalizado las empresas que prosperan son aquellas que están más dispuestas a innovar, la estrategia de innovación es el vínculo fundamental entre los esfuerzos de desarrollo de nuevos ... -
Plastics and microplastics, effects on marine coastal areas: a review
(Cartagena de Indias, 2020-08-11)Plastics have become strong environmental stressors of coastal marine ecosystems. Their introduction into the marine ecosystem is subjected to different mechanisms, including the inadequate disposal of solid waste and ... -
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 ... -
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 ... -
Polylactic acid effectively reinforced with reduced graphitic oxide
(Cartagena de Indias, 2022-09-01)The present study was developed to reinforce a thermoplastic matrix with carbonaceous material to improve its thermal and mechanical properties. Composite materials formed from the homogenization of polylactic acid (PLA) ... -
Positioning and status of the Spanish numismatic journals in scientific databases
(Cartagena de Indias, 2019)The following article captures the current situation of the Spanish scientific journals focused on numismatics and their positioning in the main international bibliographical (Latindex, Web of Science and Scopus) and Spanish ... -
Potential dividends and actual cash flows in equity valuation. A critical analysis
(Cartagena de Indias, 2009-11-11)Practitioners and most academics in valuation include changes in liquid assets (potential dividends) in the cash flows. This widespread and wrong practice is inconsistent with basic finance theory. We present economic, ... -
Potential dividends and actual cash flows.A regional Latin American analysis
(Cartagena de Indias, 2009-11-26)We examine the value market assigns to components of the cash flow to equity including potential dividends. We study non financial publicly traded firms from five Latin American countries. The model includes four variables: ... -
Power Flow Analysis in DC Grids: Two Alternative Numerical Methods
(Institute of Electrical and Electronics Engineers Inc., 2019)This express brief proposes two new iterative approaches for solving the power flow problem in direct current networks as efficient alternatives to the classical Gauss-Seidel and Newton-Raphson methods. The first approach ... -
Power flow approximation for DC networks with constant power loads via logarithmic transform of voltage magnitudes
(Elsevier Ltd, 2019)This paper proposes a logarithmic transformation of voltages (LTVM) for the power flow in DC grids. This problem is non-linear due to the presence of constant power loads (CPLs), which also introduce a negative resistance ... -
Power Flow in Bipolar DC Distribution Networks Considering Current Limits
(Cartagena de Indias, 2022-09)Power electronics converters are equipped with current controls that protect the converter from over-currents. This protection introduces non-differentiable equations into the power flow problem. The conventional Newton's ... -
Power flow methods used in AC distribution networks: An analysis of convergence and processing times in radial and meshed grid configurations
(Cartagena de IndiasCampus Tecnológico, 2023-01-23)The load flow problem (LFP) in power distribution networks allows us to find the nodal voltage values within the electrical systems. These values, along with the system parameters, are useful to identify the (technical,economic, ... -
Power flow solution in direct current grids using the linear conjugate gradient approach
(Cartagena de Indias, 2019-09-24)The Colombian power system is being modified by the large-scale integration of renewable energy resources and energy storage systems, in conjunction with the microgrid concept that originates the possibility of alternating ... -
Power monitoring based on industrial internet of things
(Springer Verlag, 2017)Monitoring has always been of crucial importance for industries, and it has been useful when getting notifications about critical parameters reaching threshold and alerts pertaining to failure of a specific device becomes ...
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.