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Mostrando ítems 941-960 de 1604
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Search for slow magnetic monopoles with the NOvA detector on the surface
(BarranquillaSede Norte, 2021-01-05)We report a search for a magnetic monopole component of the cosmic-ray flux in a 95-day exposure of the NOvA experiment’s Far Detector, a 14 kt segmented liquid scintillator detector designed primarily to observe GeV-scale ...
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Transcritical Bifurcations and Algebraic Aspects of Quadratic Multiparametric Families
(BarranquillaMatemáticasSede Norte, 2021-01-05)This article reveals an analysis of the quadratic systems that hold multiparametric families therefore, in the first instance the quadratic systems are identified and classified in order to facilitate their study and ...
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Uncoupled Majorana fermions in open quantum systems: On the efficient simulation of non-equilibrium stationary states of quadratic Fermi models
(BarranquillaFísicaSede Norte, 2021-01-14)A decomposition of the non-equilibrium stationary state of a quadratic Fermi system influenced by linear baths is obtained and used to establish a simulation protocol in terms of tensor states. The scheme is then applied ...
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Eficiencia de la difracción de un sistema de modulación acusto-óptico de doble paso
(BarranquillaSede Norte, 2021-01-18)Se describe la caracterización de un sistema de modulación acusto-óptico y la optimización del set up para mejorar la eficiencia de la difracción en configuraciones de paso simple y doble. En la configuración de paso ...
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Optimization of Chitosan Glutaraldehyde-Crosslinked Beads for Reactive Blue 4 Anionic Dye Removal Using a Surface Response Methodology
(BarranquillaQuímicaSede Norte, 2021-01-25)The use of dyes at an industrial level has become problematic, since the discharge of dye effluents into water disturbs the photosynthetic activity of numerous aquatic organisms by reducing the penetration of light and ...
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Packham’s Triumph Pears (Pyrus communis L.) Post-Harvest Treatment during Cold Storage Based on Chitosan and Rue Essential Oil
(BarranquillaIngeniería AgroindustrialSede Norte, 2021-01-30): Pears (Pyrus communis L.) cv. Packham’s Triumph are very traditional for human consumption, but pear is a highly perishable climacteric fruit with a short shelf-life affected by several diseases with a microbial origin. ...
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Computational Analysis of Different Turbulence Models in a Vane Pump Simulation
(BarranquillaIngeniería MecánicaSede Norte, 2021-02-04)The study presents a computational analysis of a vane pump using two different turbulence models namely κ-ε and κ-ω. The geometry characteristics of the vane pump were obtained by disassembly and further measurements. ...
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Índices de Capacidad Univariados. Aplicaciones en el área productiva
(BarranquillaSede Norte, 2021-02-04)El análisis de la capacidad de un proceso es una herramienta esencial en ingeniería para evaluar su desempeño de un producto con respecto a una(s) tolerancia(s) o especificación(es). Esta capacidad de proceso permite estimar ...
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Fractional discrete vortex solitons
(BarranquillaFísicaSede Norte, 2021-02-09)We examine the existence and stability of nonlinear discrete vortex solitons in a square lattice when the standard discrete Laplacian is replaced by a fractional version. This creates a new, effective site-energy term, and ...
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Diseño de estructuras con alambres en artesanías de Usiacurí
(BarranquillaLicenciatura en MatemáticasSede Norte, 2021-02-09)El problema de investigación surge del interés por los conocimientos matemáticos presentes en la práctica artesanal del municipio de Usiacurí - Atlántico, Colombia, específicamente, en el diseño de estructuras con alambres. ...
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Influence of Compression Rings on the Dynamic Characteristics and Sealing Capacity of the Combustion Chamber in Diesel Engines
(BarranquillaIngeniería MecánicaSede Norte, 2021-02-11)Internal combustion engines are widely implemented in several applications; however, they still face significant challenges due to the sealing capacity of the compression rings. Gas leakage through the crankcase, also known ...
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Intervención didáctica tecnológica para el estudio de las secciones cónicas basada en el potencial semiótico
(BarranquillaLicenciatura en MatemáticasSede Norte, 2021-02-15)El objetivo del presente estudio es identificar, analizar y caracterizar los registros semióticos en el estudio de las secciones cónicas con profesores en formación. La metodología con enfoque mixto, diseño basado en ...
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Effect of Pretreatment with Low-Frequency Ultrasound on Quality Parameters in Gulupa (Passiflora edulis Sims) Pulp
(BarranquillaIngeniería QuímicaSede Norte, 2021-02-16)The Gulupa (Passiflora edulis f. edulis Sims) is an expression of South America’s tropics’ biodiversity, and a source of B vitamins and amino acids. It is a climacteric export fruit for which it is necessary to incorporate ...
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CLASSES OF ALGEBRAS AND CLOSURE OPERATIONS
(BarranquillaSede Norte, 2021-02-17)The calculus of classes and closure operations has proved to be a useful tool in group theory and has led to a deep theory in the study of finite soluble groups. More recently, parallel theories have started to be ...
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Matrix Effects of the Hydroethanolic Extract of Calyces of Physalis peruviana L. on Rutin Pharmacokinetics in Wistar Rats Using Population Modeling
(BarranquillaFarmaciaSede Norte, 2021-02-28)Rutin is the rutinose conjugate of quercetin. It presents several biological activities and is the major flavonoid in the hydroalcoholic extract of the calyces of Physalis peruviana L. It also shows hypoglycemic activity ...
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Comparative Study of the Reaction Kinetics of Three Residual Biomasses
(BarranquillaIngeniería AgroindustrialSede Norte, 2021-03-01)Kinetic analysis for the combustion of three agro-industrial biomass residues (coconut husk, corn husk, and rice husk) was carried out in order to provide information for the generation of energy from them. The analysis was ...
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The role of heterogenous environmental conditions in shaping the spatiotemporal distribution of competing Aedes mosquitoes in Panama: implications for the landscape of arboviral disease transmission
(BarranquillaBiologíaSede Norte, 2021-03-01)Monitoring the invasion process of the Asian tiger mosquito Aedes albopictus and its interaction with the contender Aedes aegypti, is critical to prevent and control the arthropod-borne viruses (i.e., Arboviruses) they ...
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CMEA Modelos educativos: retos para los docentes en la diversidad de contextos en formación
(BarranquillaSede Norte, 2021-03-02)En la actualidad, la diversidad y el respecto a las individualidades y particularidades del ser humano es una cuestión que sigue ganando relevancia en todos los campos de la vida; en la docencia por ejemplo, uno de los ...
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El rol de la Tecnologías de la Información y la Comunicación (TIC) en la gestión del conocimiento en las contralorías territoriales del departamento del Atlántico - Colombia
(BarranquillaSede Norte, 2021-03-16)En el contexto de la gestión del conocimiento, las Tecnologías de la Información y la Comunicación (TIC) desempeñan un rol clave, puesto que permite el flujo constante de información en un ambiente de aprendizaje colaborativo ...
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Deep underground neutrino experiment (DUNE) near detector conceptual design report
(BarranquillaSede Norte, 2021-03-26)The Deep Underground Neutrino Experiment (DUNE) is an international, world-class experiment aimed at exploring fundamental questions about the universe that are at the forefront of astrophysics and particle physics research. ...