Investigaciones: Envíos recientes
Mostrando ítems 341-360 de 390
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Parametric Analysis CFD of the Hydraulic Performance of a Centrifugal Pump with Applications to the Dredging Industry
(BarranquillaIngeniería MecánicaSede Norte, 2020-01-20)The present study aims to use the analysis of CFD in a centrifugal dredge pump, to predict by mathematical correlations the effect that changes in the main variables of the dredging process would have on the behavior and ...
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A Generalized of Nörlund Ideal Convergent Double Sequence Spaces
(BarranquillaSede Norte, 2021-10-29)In this paper, by using the Nörlund mean Nt and the notion of ideal double convergence, we introduce new sequence spaces c I2 0 (Nt ), cI2 (Nt ), and ℓ I2∞(Nt ). Besides, we study some topological and algebraic ...
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Effect of Addition of Polyurea as an Aggregate in Mortars: Analysis of Microstructure and Strength
(BarranquillaLicenciatura en Ciencias NaturalesSede Norte, 2022-04-26)The addition of polymers in construction is a new tendency and an important step toward the production of structures with better functional properties. This work investigates the addition of polyurea (PU) as a polymeric ...
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A MILP facility location model with distance value adjustments for demand fulfillment using Google Maps
(BarranquillaIngeniería IndustrialSede Norte, 2021-10-13)In this article, a facility location model was designed to support logistics operations, considering service distance limitations for demand fulfillment and a list of candidate locations within a supply chain. Consequently, ...
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Biocompatibility Assessment of Polylactic Acid (PLA) and Nanobioglass (n-BG) Nanocomposites for Biomedical Applications
(BarranquillaQuímicaSede Norte, 2022-06-06)Scaffolds based on biopolymers and nanomaterials with appropriate mechanical properties and high biocompatibility are desirable in tissue engineering. Therefore, polylactic acid (PLA) nanocomposites were prepared with ...
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Análisis económico, social y ambiental de las ventas informales en el sector del mercado público de Barranquilla
(BarranquillaSede Norte, 2022-06-10)Se reporta el trabajo de investigación desarrollado en el mercado público de Barranquilla en los años de 2015 y 2016, aplicándose la matriz DOFA con el fin de determinar la potencialidad económica social y ambiental de las ...
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Nuevos registros y estado del conocimiento de heterobranquios marinos (Mollusca: Gastropoda) en el departamento del Atlántico, Caribe colombiano
(BarranquillaLicenciatura en Ciencias NaturalesSede Norte, 2022-06-28)La subclase Heterobranchia es una de las más diversas entre los moluscos gasterópodos; está presente en ambientes marinos, de agua dulce y terrestres, e incluye babosas intersticiales, nudibranquios, lapas intermareales, ...
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Socioeconomic determinants that influence the agricultural practices of small farm families in northern Colombia
(BarranquillaBiologíaSede Norte, 2021-12-06)Access to agricultural services promotes agricultural production and livelihoods of smallholders in most developing countries. The purpose of this study was to analyze the socioeconomic determinants that influence the ...
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Factores de gestión del conocimiento en entidad pública del sector de tránsito y transporte
(BarranquillaSede Norte, 2020-08-23)Desde una visión sistémica, la gestión del conocimiento afecta al proceso de toma de decisiones en las organizaciones que, en un entorno globalizado, deben plantear estrategias que posibiliten el incremento de la ...
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Luis Alarcón Meneses. Colombia: Historia, Educación y Política. Miradas Múltiples. Barranquilla: Sello Editorial Universidad del Atlántico, 2019.
(BarranquillaSede Norte, 2021-12-01)
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Factores contextuales que influyen en la intención emprendedora de estudiantes universitarios venezolanos y colombianos
(BarranquillaSede Norte, 2021-09-04)El emprendimiento se considera un área de investigación novedosa, recientemente ha tomado un gran auge, sobre todo como instrumento de políticas gubernamentales destinadas a fomentar el crecimiento de la actividad económica. ...
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Methodological Approach to Improve Energy Efficiency by Concentrating Operation Points an Electrical Transformer Maintenance Company
(BarranquillaIngeniería MecánicaSede Norte, 2021-05-28)In recent years, companies have developed strategies to improve the environment through the efficient use of their energy resources (Rodríguez Toscano et al., 2019). This practice has been widely used in the goods ...
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Comparative Study of the Reaction Kinetics of Three Residual Biomasses
(BarranquillaIngeniería AgroindustrialSede Norte, 2021-03-01)Kinetic analysis for the combustion of three agro-industrial biomass residues (coconut husk, corn husk, and rice husk) was carried out in order to provide information for the generation of energy from them. The analysis was ...
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Search for slow magnetic monopoles with the NOvA detector on the surface
(BarranquillaSede Norte, 2021-01-05)We report a search for a magnetic monopole component of the cosmic-ray flux in a 95-day exposure of the NOvA experiment’s Far Detector, a 14 kt segmented liquid scintillator detector designed primarily to observe GeV-scale ...
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Optimization of Chitosan Glutaraldehyde-Crosslinked Beads for Reactive Blue 4 Anionic Dye Removal Using a Surface Response Methodology
(BarranquillaQuímicaSede Norte, 2021-01-25)The use of dyes at an industrial level has become problematic, since the discharge of dye effluents into water disturbs the photosynthetic activity of numerous aquatic organisms by reducing the penetration of light and ...
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Wind Speed Prediction Based on Univariate ARIMA and OLS on the Colombian Caribbean Coast
(BarranquillaIngeniería IndustrialSede Norte, 2020-06-10)techniques for wind speed forecasting. However, although there are multiple studies, none are set up for the Colombia Caribbean coast. This is a disadvantage because the potential of wind resources in this region is greater ...
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A NOTE ON PRESERVATION OF SPECTRA FOR TWO GIVEN OPERATORS
(BarranquillaSede Norte, 2019-03-06)We study the relationships between the spectra derived from Fredholm the- ory corresponding to two given bounded linear operators acting on the same space. The main goal of this paper is to obtain sufficient conditions ...
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A COMPREHENSIVE ANALYSIS OF CRITICAL VARIABLES USED TO DESIGN A SPRAY DRYER OF WHEY PROTEIN CONCENTRATES
(BarranquillaIngeniería QuímicaSede Norte, 2019-11-12)Five models of a spray dryer design for a whey protein process were analyzed in this study. These models include first principle approaches and empirical correlations. From a large set of given design specifications ...
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Characterization of chlorogenic acids (CGA) and nine isomers in an F2 population derived from Coffea arabica L.
(BarranquillaSede Norte, 2020-04-13)ABSTRACT Chlorogenic acids (CGA) and their isomers have been associated with sensory attributes of the coffee beverage such as acidity, astringency, and bitterness. They have been linked to coffee rust resistance and ...
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Metabolismo urbano: Reflexiones sobre el crecimiento urbano y el consumo energético
(BarranquillaSede Norte, 2019-01-24)RESUMEN/ El estudio de los impactos que los distintos modelos de ciudad ejercen sobre los ecosistemas es una tendencia marcada en las reflexiones actuales del urbanismo. Sobre esta base y a partir de una reflexión teórica ...
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