Listar Artículos de investigación por fecha de publicación
Mostrando ítems 81-100 de 248
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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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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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Combining Energy Management Indicators and Life Cycle Assessment Indicators to Promote Sustainability in a Paper Production Plant
(BarranquillaIngeniería MecánicaSede Norte, 2020-06-21)This paper presents the application of an energy characterization method based on the ISO 50001 standard in a dry paper production plant. This plant operates using electricity, gas, and coal as energy sources. The last ...
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Transperiferismo, necropolítica y sufrimiento social. Etnografía experimental sobre las condiciones de vida de inmigrantes venezolanos en el Caribe colombiano
(BarranquillaLicenciatura en Ciencias SocialesSede Norte, 2020-06-21)Objetivos En este trabajo exploramos la crueldad y el sufrimiento que experimentan inmigrantes venezolanos que habitan en un asentamiento irregular llamado Villa Caracas, en la periferia de Barranquilla. Nuestro objetivo ...
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Design, characterization and quantum chemical computations of a novel series of pyrazoles derivatives with potential anti-proinflammatory response
(BarranquillaQuímicaSede Norte, 2020-06-24)The synthesis and characterization of the full family of 11 pyrazoles were performed by means of UV–Vis, FTIR, 1 H NMR, 13C NMR, two-dimensional NMR experiments and DFT simulations. As pyrazoles are known for showing ...
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Gestión de la experiencia de las unidades principales de internacionalización en las instituciones de educación superior
(BarranquillaMaestría en EducaciónSede Norte, 2020-06-24)El objetivo del presente estudio es analizar la gestión de la experiencia de las unidades principales de internacionalización en las instituciones de educación superior de Barranquilla (Colombia). Se utiliza un enfoque ...
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A Look to the Biogas Generation from Organic Wastes in Colombia
(BarranquillaSede Norte, 2020-06-25)In line with the goals of the Paris Agreement and the guidelines of Conpes 3874 of 2016, Colombia has adopted different strategies to optimize the use of biomass as an energy source and the management of materials in urban ...
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Regenerative Organic Rankine Cycle as Bottoming Cycle of an Industrial Gas Engine: Traditional and Advanced Exergetic Analysis
(BarranquillaIngeniería MecánicaSede Norte, 2020-06-27)This investigation shows a traditional and advanced exergetic assessment of a waste heat recovery system based on recuperative ORC (organic Rankine cycle) as bottoming cycle of a 2 MW natural gas internal combustion ...
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Localized vortex beams in anisotropic Lieb lattices
(BarranquillaFísicaSede Norte, 2020-07-01)We address the issue of nonlinear modes in a two-dimensional waveguide array, spatially distributed in the Lieb lattice geometry, and modeled by a saturable nonlinear Schr odinger equation. In particular, we analyze the ...
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Measurement of neutrino-induced neutral-current coherent π0 production in the NOvA near detector
(BarranquillaSede Norte, 2020-07-09)The cross section of neutrino-induced neutral-current coherent π0 production on a carbon-dominated target is measured in the NOvA near detector. This measurement uses a narrow-band neutrino beam with an average neutrino ...
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A comparative study of the energy, exergetic and thermo-economic performance of a novelty combined Brayton S-CO2-ORC configurations as bottoming cycles
(BarranquillaIngeniería MecánicaSede Norte, 2020-07-10)This paper presents a comparative study on the energy, exergetic and thermo-economic performance of a novelty thermal power system integrated by a supercritical CO2 Brayton cycle, and a recuperative organic Rankine ...
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Mamíferos del departamento del Atlántico, Colombia
(BarranquillaSede Norte, 2020-07-16)We presents the first taxonomic list of wild mammals for the Atlántico department, in the Caribbean coast of Colombia. We recorded 92 species distributed in 11 orders, 37 families, and 74 genera, which represents 16.5 % ...
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Acrylic Bone Cement Incorporated with Low Chitosan Loadings
(BarranquillaSede Norte, 2020-07-21)Despite the potential of acrylic bone cement (ABC) loaded with chitosan (CS) for orthopedic applications, there are only a few in vitro studies of this composite with CS loading ≤ 15 wt.% evaluated in bioactivity tests ...
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Bright neodymium complexes for efficient near infra-red organic light emitting diodes
(BarranquillaFísicaSede Norte, 2020-07-22)This paper reports the synthesis, structures, photophysics and optoelectronics of three NIR-emitting ternary neodymium tris b-diketonate complexes, [Nd(hfpd)3(L)n=1–2(H2O)x=0–2](H2O)y=0–1 (hfpd = anionic form of ...
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Calidad de servicio como elemento clave de la responsabilidad social en pequeñas y medianas empresas
(BarranquillaAdministración de EmpresasSede Norte, 2020-08-01)El presente estudio analizó la calidad de servicio como elemento clave para cumplir con la responsabilidad social en pequeñas y medianas empresas (pymes). La metodología fue descriptiva, no experimental y de campo. La ...
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Acrylic Bone Cements Modified with Graphene Oxide: Mechanical, Physical, and Antibacterial Properties
(BarranquillaSede Norte, 2020-08-07)Bacterial infections are a common complication after total joint replacements (TJRs), the treatment of which is usually based on the application of antibiotic-loaded cements; however, owing to the increase in ...
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Effect of the Gallium and Vanadium on the Dibenzothiophene Hydrodesulfurization and Naphthalene Hydrogenation Activities Using Sulfided NiMo-V2O5/Al2O3-Ga2O3
(BarranquillaQuímicaSede Norte, 2020-08-07)The effect of Ga and V as support-modifier and promoter of NiMoV/Al2O3-Ga2O3 catalyst on hydrogenation (HYD) and hydrodesulfurization (HDS) activities was studied. The catalysts were characterized by elemental analysis, ...
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FT-NIR spectroscopy and RP-HPLC combined with multivariate analysis reveals differences in plant cell suspension cultures of Thevetia peruviana treated with salicylic acid and methyl jasmonate
(BarranquillaSede Norte, 2020-08-10)Plant cell suspension culture of T. peruviana is a feasible biotechnological platform for the production of secondary metabolites with anti-proliferative/cytotoxic activity, as phenolic compounds (PC); however, different ...
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Effect of the Geometric Profile of Top Ring on the Tribological Characteristics of a Low-Displacement Diesel Engine
(BarranquillaIngeniería MecánicaSede Norte, 2020-08-11)The present study aims to analyze the influence of the geometric profile of the compression ring on the tribological properties of the lubricant. Additionally, the influence of the rotation speed and the engine load on ...
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Exergetic analysis of a dual-fuel engine, PEM electrolyzer and thermoelectric generator integrated system
(BarranquillaIngeniería MecánicaSede Norte, 2020-08-12)In this research, the implementation of an integrated system composed of a dual-fuel engine (Diesel-Hydrogen), a PEM electrolyzer and a thermoelectric generator is envisioned. In order to know the optimal operating ...