Artículos de investigación: Envíos recientes
Mostrando ítems 141-160 de 248
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Financial Evaluation of Photovoltaic Energy Projects in Colombia
(BarranquillaSede Norte, 2020-09-01)The use of renewable sources, especially photovoltaics, has become a viable alternative as a supply of this vital element without destroying the environmental environment. In this sense, the main objective of the study ...
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ASSESSING AND CLASSIFICATION OF ACADEMIC EFFICIENCY IN ENGINEERING TEACHING PROGRAMS
(BarranquillaSede Norte, 2021-03-31)This research uses a three-phase method to evaluate and forecast the academic efficiency of engineering programs. In the first phase, university profiles are created through cluster analysis. In the second phase, the ...
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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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A Machine Learning based Method for Managing Multiple Impulse Purchase Products: An Inventory Management Approach
(BarranquillaIngeniería IndustrialSede Norte, 2021-04-02)Recently, some studies have begun to explore the potential that inventory management combined with machine learning algorithms could provide as a means of producing efficient and flexible inventory management methods. In ...
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ON CONTRA Λ s I -CONTINUOUS FUNCTIONS AND THEIR APPLICATIONS
(BarranquillaMaestría en Ciencias MatemáticasSede Norte, 2021-04-13)In this work, we introduce and study the classes of contra Λ s I -continuous, contra quasi-Λ s I -continuous and contra Λ s I -irresolute functions in a topological space endowed with an ideal. We investigate the ...
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Google Colab and Virtual Simulations: Practical e‑Learning Tools to Support the Teaching of Thermodynamics and to Introduce Coding to Students
(BarranquillaLicenciatura en Ciencias NaturalesSede Norte, 2022-02-18)Various studies have reported the versatility and great scope of programming tools in all areas of knowledge. Coding is generally of paramount importance to chemistry students regardless of whether they intend to work with ...
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Planificación estratégica situacional: Un proceso metódico-práctico
(BarranquillaSede Norte, 202-01-20)La planificación situacional asume la crítica de la planificación tradicional, por su incapacidad de producir cambios, siendo de auto referencia del hombre de acción, que en última instancia debe resolver problemas ...
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Comparison between the dissolution profiles of prolonged-release ciprofloxacin tablets available in the Colombian market
(BarranquillaQuímicaSede Norte, 2022-03-05)Two 1,000 mg prolonged-release ciprofloxacin (CIP) tablets marketed in Colombia were compared for quality control tests and dissolution profile as established in the United States Pharmacopeia 42-NF 37 and the Food and ...
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Lagunas en la formación inicial docente en investigación educativa: un estudio de caso
(BarranquillaSede Norte, 2022-03-23)Este artículo analiza las percepciones del profesorado universitario y estudiantes de los Grados de Maestro en Educación Infantil y Educación Primaria sobre el desarrollo y adquisición de las habilidades y competencias en ...
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Effect of Diesel Oil and Mixture of Alcohol-Glycol Ether on Colombian Ultrafine Coal Cleaning Using a Test-Rig Closed-Loop Flotation Column
(BarranquillaIngeniería MecánicaSede Norte, 2021-07-19)A test-rig closed-loop flotation column was used to observe the effect of diesel oil (collector) and Flomin F-425 (frother) on mass yield and ash content for two Colombian coals: Caypa (northern zone) and Guachinte ...
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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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Impact of Pheidole fallax (Hymenoptera: Formicidae) as an Ecosystem Engineer in Rehabilitated Coal Mine Areas
(BarranquillaBiologíaSede Norte, 2022-02-01)Pheidole fallax is one the most abundant ants in sites where coal mines have undergone rehabilitation and in forests without mine intervention. The impact that this species may have as an ecosystem engineer needs to be ...
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Removal of minocycline from high concentrated aqueous medium by nonliving and lipid-free Chlorella sp. biomass
(BarranquillaQuímicaSede Norte, 2021-12-16)This work evaluated the removal of minocycline (MC) by the nonliving Chlorella sp. biomass (NLB) and modified by a lipid extraction procedure (LEB). Both biomasses have different morphology (NLB: globular-like; LEB: flakes ...
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Computed torque control of a 2-RR planar parallel robot
(BarranquillaIngeniería MecánicaSede Norte, 2017-07-06)The design, construction and control of a two degree-of-freedom planar mechanism with five bar and five joints are presented. Computed control torque strategy in the joint space was implemented in order to fulfill a kinematic ...
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El derecho natural en la constitución política de Colombia, una visión desde los postulados de Javier Hervada
(BarranquillaSede Norte, 2022-06-20)La pluralidad temática y la prolijidad de los textos y reconocimientos que se integran en la Constitución Política de Colombia de 1991 permiten que a esta se le estudie y considere desde diversas ópticas y criterios tanto ...
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Soil macrofauna, mesofauna and microfauna and their relationship with soil quality in agricultural areas in northern Colombia: ecological implications
(BarranquillaBiologíaSede Norte, 2022-07-15)Soil fauna is an essential component of the soil ecosystem for maintaining nutrient cycling and biological soil fertility. This study assessed the soil biodiversity (macrofauna, mesofauna, and microfauna) to define ...
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High-Intensity Ultrasound-Assisted Extraction of Pectin from Mango Wastes at Different Maturity
(BarranquillaIngeniería AgroindustrialSede Norte, 2022-07-15)Valorisation of food processing by-products is a welcome and developing area. The mango processing industry produces 40% to 60% of the fruit as solid waste, in which components of industrial interest, such as pectin, are ...
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PRIMERA APROXIMACIÓN A LA FAUNA FLEBOTOMÍNEA (PSYCHODIDAE: PHLEBOTOMINAE) DEL DEPARTAMENTO DE ATLÁNTICO
(BarranquillaSede Norte, 2019-09-26)Dentro del género Lutzomyia algunas especies son vectores de la enfermedad llamada leishmaniasis, la cual tiene implicaciones en la salud pública, desarrollando diferentes manifestaciones clínicas como leishmaniasis ...
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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 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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