Artículos de investigación: Envíos recientes
Mostrando ítems 41-60 de 248
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Uso de las TIC en Arquitectura: experiencia de un programa tecnólogo de la Universidad del Atlántico, Barranquilla, Colombia
(BarranquillaArquitecturaSede Norte, 2020-12-01)Analizar los procesos de enseñanza basados en el uso de las Tecnologías de la Información y Comunicaciones (TIC) de los docentes del programa Tecnología en Gestión de la Construcción de Proyectos Arquitectónicos y su ...
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Mid-Infrared Laser Spectroscopy Detection and Quantification of Explosives in Soils Using Multivariate Analysis and Artificial Intelligence
(BarranquillaQuímicaSede Norte, 2020-06-20)A tunable quantum cascade laser (QCL) spectrometer was used to develop methods for detecting and quantifying high explosives (HE) in soil based on multivariate analysis (MVA) and artificial intelligence (AI). For ...
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Experimental assessment of emissions maps of a single-cylinder compression ignition engine powered by diesel and palm oil biodiesel-diesel fuel blends
(BarranquillaIngeniería MecánicaSede Norte, 2020-02-26)Diesel engines applications cover a broad spectrum, ranging from vehicles that transport passengers and move goods to specialized vehicles and equipment used in the construction and agriculture industries. However, diesel ...
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Search for multimessenger signals in NOvA coincident with LIGO/Virgo detections
(BarranquillaSede Norte, 2021-05-06)Using the NOvA neutrino detectors, a broad search has been performed for any signal coincident with 28 gravitational wave events detected by the LIGO/Virgo Collaboration between September 2015 and July 2019. For all of ...
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Una revista académica como estrategia pedagógica para el desarrollo de competencias genéricas y específicas de profesores de lenguas en formación
(BarranquillaSede Norte, 2019-07-12)Este trabajo presenta el impacto que tuvo la edición de una revista académica como estrategia pedagógica para el desarrollo de competencias genéricas y específicas (expresión escrita) de los profesores de lengua en formación ...
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Development of a new educational package based on e-learning to study engineering thermodynamics process: combustion, energy and entropy analysis
(BarranquillaIngeniería MecánicaSede Norte, 2020-06-18)This paper presents a new educational package based on e-learning called TermolabUA integrated by three programs, which are VOLCONTROL focused on the analysis of steady-state flow devices, CarnotCycle aimed to analyze ...
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Use of sludge ash from drinking water treatment plant in hydraulic mortars
(BarranquillaIngeniería QuímicaSede Norte, 2020-01-13)The present study investigated the use of sludge ash from water treatment plants as supplementary cementing material, elaborating hydraulic mortars with different levels of cement replacement by sludge ash (10 wt% and 30 ...
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A comparative energy and exergy optimization of a supercritical-CO2 Brayton cycle and Organic Rankine Cycle combined system using swarm intelligence algorithms
(BarranquillaIngeniería MecánicaSede Norte, 2020-06-01)This article presents a multivariable optimization of the energy and exergetic performance of a power generation system, which is integrated by a supercritical Brayton Cycle using carbon dioxide, and a Simple Organic ...
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Monitoreo y control del rendimiento de las dimensiones de calidad de un centro de atención del servicio en una institución de educación superior
(BarranquillaIngeniería IndustrialSede Norte, 2020-06-01)En esta investigación se diseñó un método de control para el rendimiento de las dimensiones de calidad de un centro de atención del servicio en una institución de educación superior. Se apoyó en los planteamientos teóricos ...
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Article Comparative Study of ZnO Thin Films Doped with Transition Metals (Cu and Co) for Methylene Blue Photodegradation under Visible Irradiation
(BarranquillaSede Norte, 2020-05-11)We synthesized and characterized both Co-doped ZnO (ZnO:Co) and Cu-doped ZnO (ZnO:Cu) thin films. The catalysts’ synthesis was carried out by the sol–gel method while the doctor blade technique was used for thin film ...
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TiO2 thin films sensitization with natural dyes extracted from Bactris guineensis for photocatalytic applications: Experimental and DFT study
(BarranquillaQuímicaSede Norte, 2020-03-11)TiO2 thin films, sensitized by an anthocyanins-rich extract of a common species found in the Colombian Caribbean region (Bactris guineensis fruits), were used for the photocatalytic degradation of methylene blue. The ...
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Article Synthesis of Chitosan Beads Incorporating Graphene Oxide/Titanium Dioxide Nanoparticles for In Vivo Studies
(BarranquillaQuímicaSede Norte, 2020-05-14)Sca old development for cell regeneration has increased in recent years due to the high demand for more e cient and biocompatible materials. Nanomaterials have become a critical alternative for mechanical, thermal, and ...
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El Tiempo, uso y abuso
(BarranquillaArquitecturaSede Norte, 2020-02-01)Este artículo analiza y discute acerca de la razón fundamental por la que los estudiantes universitarios de la facultad de arquitectura de una universidad privada de Colombia, no utilizan bien el tiempo, en todas sus ...
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Thermodynamic, Exergy and Environmental Impact Assessment of S-CO2 Brayton Cycle Coupled with ORC as Bottoming Cycle
(BarranquillaIngeniería MecánicaSede Norte, 2020-05-04)In this article, a thermodynamic, exergy, and environmental impact assessment was carried out on a Brayton S-CO2 cycle coupled with an organic Rankine cycle (ORC) as a bottoming cycle to evaluate performance parameters ...
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Genome Sequence of the Siphoviridae Staphylococcus aureus Phage vB_SauS_BaqSau1
(BarranquillaBiologíaSede Norte, 2020-04-09)Here, we report the genome sequence of a Siphoviridae phage named vB_SauS_BaqSau1 (BaqSau1), infecting Staphylococcus aureus. Phage BaqSau1 was isolated from a sewage water treatment plant in Sahagún, Córdoba, Colombia. ...
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Matrix effects of the hydroethanolic extract and the butanol fraction of calyces from Physalis peruviana L. on the biopharmaceutics classification of rutin
(BarranquillaFarmaciaSede Norte, 2020-02-09)Objectives The Biopharmaceutics Classification System (BCS) categorizes active pharmaceutical ingredients according to their solubility and permeability properties, which are susceptible to matrix or formulation effects. ...
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Thermodynamic, exergo-economic and exergo-environmental analysis of hybrid geothermal-solar power plant based on ORC cycle using emergy concept
(BarranquillaIngeniería MecánicaSede Norte, 2020-04-06)Design and optimization of the energy system with the efficient method is one the major problem in recent years. The combined emergy-exergy-economic-environmental analysis is one of new methods selected for the optimization of ...
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In ation in a scalar-vector-tensor theory
(BarranquillaFísicaSede Norte, 2022-01-17)In this work, we study in ation in a particular scalar-vector-tensor theory of gravitation without the U(1) gauge symmetry. The model is constructed from the more general action introduced in Heisenberg et al. (Phys Rev D ...
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Cristalización de vidrios bioactivos del sistema 31SiO2-11P2O5-(58-X) CaO –X MgO: influencia del tratamiento térmico y de la composición química
(BarranquillaSede Norte, 2021-08-30)En este trabajo se estudió la influencia de la composición química y del tratamiento térmico en la cristalización de biovidrios del sistema 31SiO2-11P2O5-(58-X) CaO –X MgO (X = 0, 2, 7, 16 y 32). El tratamiento térmico ...
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Do-it-yourself methodology for calorimeter construction based in Arduino data acquisition device for introductory chemical laboratories
(BarranquillaSede Norte, 2020-03-10)Many experimental thermochemical laboratories require monitoring temperatures during a reaction or physical procedure. Nowadays, there are many alternatives to fulfill this requirement; however, they are expensive for basic ...
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