Listar Artículos de investigación por título
Mostrando ítems 215-234 de 248
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Study of the Piston Secondary Movement on the Tribological Performance of a Single Cylinder Low-Displacement Diesel Engine
(BarranquillaIngeniería MecánicaSede Norte, 2020-10-30)The present study aims to analyze the secondary movement of the piston considering the deformations present in the piston skirt, the hydrodynamic lubrication, and the effects of the clearances in the connecting rod ...
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Supernova neutrino burst detection with the Deep Underground Neutrino Experiment
(BarranquillaFísicaSede Norte, 2021-05-15)The Deep Underground Neutrino Experiment (DUNE), a 40-kton underground liquid argon time projection chamber experiment, will be sensitive to the electronneutrino flavor component of the burst of neutrinos expected from ...
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Supernova neutrino detection in NOvA
(BarranquillaSede Norte, 2020-10-05)The NOvA long-baseline neutrino experiment uses a pair of large, segmented, liquid-scintillator calorimeters to study neutrino oscillations, using GeV-scale neutrinos from the Fermilab NuMI beam. These detectors are also ...
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Synthesis and Application of a Cationic Polyamine as Yankee Dryer Coating Agent for the Tissue Paper-Making Process
(BarranquillaSede Norte, 2020-01-09)Tissue paper is of high importance worldwide and, continuously, research is focused on improvements of the softening and durability properties of the paper which depend specifically on the production process. ...
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Synthesis and Evaluation of the Fungal Activity of New Pyrazole-Carboxamides against Colletotrichum gloeosporioides
(BarranquillaQuímicaSede Norte, 2020-05-19)The pyrazole core has been recognized by their biological properties and included in the synthesis of modern agrochemicals. Part of these studies consists of making structural modifications to pesticides for commercial ...
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Synthesis and fabrication of films including graphene oxide functionalized with chitosan for regenerative medicine applications
(BarranquillaQuímicaSede Norte, 2021-06-12)Graphene oxide (GO) has recently gained attention as a scaffold reinforcing agent for tissue engineering. Biomechanical and biological properties through a synergistic effect can be strengthened when combined with other ...
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Synthesis of 3-Aroyl-4-heteroarylpyrrole Derivatives by the Van Leusen Method
(BarranquillaSede Norte, 2022-02-15)The synthesis and structural diversification of N-heterocycles systems have attracted much attention because of their potential applications. Three 6-aryl-3-methyl-1-phenyl-1H-pyrazolo[3,4- b]pyridine-5-carbaldehyde 4 ...
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Synthesis, Characterization, and Histological Evaluation of Chitosan-Ruta Graveolens Essential Oil Films
(BarranquillaSede Norte, 2020-04-07)The development of new biocompatible materials for application in the replacement of deteriorated tissues (due to accidents and diseases) has gained a lot of attention due to the high demand around the world. Tissue ...
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Synthesis, Characterization, and Optimization Studies of Starch/Chicken Gelatin Composites for FoodPackaging Applications
(BarranquillaQuímicaSede Norte, 2022-03-31)The indiscriminate use of plastic in food packaging contributes significantly to environmental pollution, promoting the search for more eco-friendly alternatives for the food industry. This work studied five formulations ...
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El tamaño sí importa! Incidencia del tamaño del cebo en la captura de escarabajos coprófagos en el bosque seco tropical
(BarranquillaBiologíaSede Norte, 2022-01-03)Introducción: Típicamente, la investigación sobre escarabajos estercoleros en los Bosques Secos Tropicales (BDT) del Caribe Colombiano región, han aplicado metodologías diseñadas para zonas húmedas o andinas del país, que ...
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Técnicas de desarrollo organizacional para la actualización tecnológica del docente en instituciones de educación superior
(BarranquillaAdministración de EmpresasSede Norte, 2020-10-01)Esta investigación caracteriza las técnicas de desarrollo organizacional para la actualización tecnológica del docente en instituciones públicas de educación superior de la región caribe (Colombia). La metodología fue ...
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The Antiviral and Virucidal Activities of Voacangine and Structural Analogs Extracted from Tabernaemontana cymosa Depend on the Dengue Virus Strain
(BarranquillaMaestría en Gestión FarmacéuticaSede Norte, 2021-06-23)Currently, no specific licensed antiviral exists for treating the illness caused by dengue virus (DENV). Therefore, the search for compounds of natural origin with antiviral activity is an important area of research. In ...
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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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The unreasonableness of the imperative: Macario by Juan Rulfo
(BarranquillaSede Norte, 2022-07-29)El artículo explica el funcionamiento del discurso dominante y su sistema de referencias en Macario (El llano en llamas, 1953) de Juan Rulfo (1917-1986). Se propone una lectura del cuento en tanto alegoría de la dominación ...
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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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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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Thermoeconomic modelling and parametric study of a simple orc for the recovery ofwaste heat in a 2 MW gas engine under differentworking fluids
(BarranquillaIngeniería MecánicaSede Norte, 2019-10-25)This paper presents a thermo-economic analysis of a simple organic Rankine cycle (SORC) as a waste heat recovery (WHR) systems of a 2 MW stationary gas engine evaluating different working fluids. Initially, a systematic ...
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Three new species of the spider genus Nopsma (Araneae, Caponiidae, Nopinae) from Colombia
(BarranquillaBiologíaSede Norte, 2021-07-13)Three new Colombian species of the spider genus Nopsma Sánchez-Ruiz, Brescovit & Bonaldo, 2020 are described and illustrated: Nopsma leticia sp. nov. (male) from Amazonas department, Nopsma macagual sp. nov. (male) from ...
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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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Time-reversal symmetry breaking in a square lattice
(BarranquillaSede Norte, 2021-04-06)The bulk conductivity of a two-dimensional system is studied assuming that time-reversal symmetry is broken by internal mechanisms. The study is carried out by direct diagonalization in order to explore the nonlinear-response ...