Investigaciones: Envíos recientes
Mostrando ítems 361-380 de 390
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Emerging contaminants as global environmental hazards. A bibliometric analysis
(BarranquillaSede Norte, 2020-05-18)This paper presents a bibliometric analysis of peer-reviewed scientific literature on emerging contaminants published from 2000 through 2019. A total of 4968 documents (among research articles and review papers) collected ...
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Respuesta de los escarabajos coprófagos (Scarabaeidae: Scarabaeinae) a la modificación del hábitat causada por un incendio forestal en la Reserva Bijibana, Atlántico-Colombia
(BarranquillaBiologíaSede Norte, 2019-10-16)El fuego como herramienta de preparación del suelo para actividades agropecuarias es una práctica comúnmente usada por los campesinos. Sin embargo, ésta puede causar incendios forestales de grandes repercusiones sobre la ...
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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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Energy, Economic, and Environmental Evaluation of a Proposed Solar-Wind Power On-grid System Using HOMER Pro®: A Case Study in Colombia
(BarranquillaSede Norte, 2020-04-02)The electrical sector in the Caribbean region of Colombia is currently facing problems that a ect its reliability. Many thermo-electric plants are required to fill the gap and ensure energy supply. This paper thus proposes ...
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A New Educational Thermodynamic Software to Promote Critical Thinking in Youth Engineering Students
(BarranquillaSede Norte, 2019-12-22)This article presents the application of a new educational thermodynamic software called MOLECULARDISORDER, based on graphical user interfaces created in Matlab® to promote critical thinking in youth engineering students, ...
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Recent synthetic efforts in the preparation of 2- (3,4)-alkenyl (aryl) quinoline molecules towards anti-kinetoplastid agents
(BarranquillaQuímicaSede Norte, 2019-12-19)Leishmaniasis, Chagas disease and African sleeping sickness have been considered some of the most important tropical protozoan afflictions. As the number of drugs currently available to treat these human illnesses is ...
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Biocompatibility Assessment of Two Commercial Bone Xenografts by In Vitro and In Vivo Methods
(BarranquillaSede Norte, 2022-06-30)Bone substitutes based on xenografts have been used for a long time in bone regeneration thanks to their inductive capacity for bone tissue regeneration. Some bone-based scaffolds have been modified by adding collagen and ...
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Neutrino Oscillation Analysis of 217 Live Days of Daya Bay and 500 Live Days of RENO
(BarranquillaSede Norte, 2020-01-22)We present a neutrino oscillation analysis of two particular data sets from the Daya Bay and RENO reactor neutrino experiments aiming to study the increase in precision in the oscillation parameters sin22θ13 and the effective ...
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INTEGRATION OF ALGEBRA AND CHEMISTRY CONCEPTS WITH MOLECULAR DESCRIPTORS: A PROBLEM-BASEDLEARNING EXERCISE
(BarranquillaSede Norte, 2019-03-17)A problem-based learning experience integrating mathematical concepts of linear and abstract algebra for undergraduate chemistry students is presented. The pedagogical framework was focused on the conceptual understanding ...
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Exergy, Economic, and Life-Cycle Assessment of ORC System for Waste Heat Recovery in a Natural Gas Internal Combustion Engine
(BarranquillaIngeniería MecánicaSede Norte, 2020-01-01)In this article, an organicRankine cycle (ORC)was integrated into a 2-MWnatural gas engine to evaluate the possibility of generating electricity by recovering the engine’s exhaust heat. The operational anddesignvariableswiththe ...
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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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Physical-chemical study of anthracene selective oxidation by a Fe(III)-phenylporhyrin derivative
(BarranquillaSede Norte, 2019-10-30)In this work, we studied the anthracene oxidation by hydroxyl radicals. Hydroxyl radical was generated by reaction of 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin Fe (III) (TPPFe) with hydrogen peroxide under visible ...
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Multiple Linear Regression Model Applied to the Projection of Electricity Demand in Colombia
(BarranquillaSede Norte, 2019-10-10)The exigencies as soon as to competitiveness and productivity have influenced in the energetic consumption and the demand of electrical energy in Colombia, reason why at the present time it is of much interest and utility ...
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Methylene Blue Photodegradation under Visible Irradiation on Ag-Doped ZnO Thin Films
(BarranquillaSede Norte, 2019-09-04)This study synthesized and characterized Ag-doped ZnO thin films. Doped ZnO powders were synthesized using the sol-gel method, and thin films were fabricated using the doctor blade technique. The Ag content was determined ...
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Barrow holographic dark energy with Granda–Oliveros cutoff
(BarranquillaFísicaSede Norte, 2022-07-07)A study on the effects of implementing the Granda-Oliveros infrared cutoff in the recently introduced Barrow Holographic Dark Energy model is presented, and its cosmological evolution is investigated. We find how the ...
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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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Construcc ión de una identidad relacional caribeña en Doce cuentos peregrinos de Gabriel García Márquez
(BarranquillaSede Norte, 2022-07-18)En este trabajo se estudia la construcción de una identidad relacional caribeña planteada en Doce cuentos peregrinos a partir del análisis de la relación, la errancia y el posoccidentalismo, y del estudio del paisaje como ...
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Applied Bibliometric in the Advancement of Solar Energy Research
(BarranquillaIngeniería MecánicaSede Norte, 2022-07-19)existing data and documents to resolve trends in specific research fields. Considering the database downloaded from Web of Science, with the help of Hitscite and VOSviewer data analysis tool and Microsoft Excel table, 7,259 ...
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Trends in Research Focused on Hydrogen Production Based on the Web of Science
(BarranquillaIngeniería QuímicaSede Norte, 2022-07-19)In the present research, a bibliometric analysis is performed on the trends of research focused on hydrogen production. The analysis was performed through an electronic search of the Web of Science database for publications ...
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Effects of Different Concentrations of Arsine on the Synthesis and Final Properties of Polypropylene
(BarranquillaQuímicaSede Norte, 2022-07-31)This article studies the effects of arsine on the synthesis and thermal degradation of 4 samples of virgin polypropylene (PP-virgin) and proposes reaction mechanisms that allow understanding of its behaviour. Different ...
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