Listar Nuevo Conocimiento por fecha de publicación
Mostrando ítems 281-300 de 390
-
Chromatographic analysis of phytochemicals in the peel of Musa paradisiaca to synthesize silver nanoparticles
(BarranquillaSede Norte, 2021-05-21)This research work usedMusa paradisiaca(banana) peels as a natural solvent,assorted with the precursorAgNO3(10 mM) to perform the green synthesis of silvernanoparticles. The phytochemical components present in theMusa ...
-
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 ...
-
Cacao pod husk flour as an ingredient for reformulating frankfurters: Effects on quality properties
(BarranquillaEspecialización Tecnológica en Calidad de la Producción de AlimentosSede Norte, 2021-05-30)The cocoa pod husk is considered a source of dietary fiber with a high content of watersoluble pectins, bioactive compounds which should be viewed as a by-product with the potential to be incorporated into food. This study ...
-
Optimization of mechanical and setting properties in acrylic bone cements added with graphene oxide
(BarranquillaIngeniería QuímicaSede Norte, 2021-06-03)The extended use of acrylic bone cements (ABC) in orthopedics presents some disadvantages related to the generation of high temperatures during methyl methacrylate polymerization, thermal tissue necrosis, and low mechanical ...
-
Combustion and Performance Evaluation of a Spark Ignition Engine Operating with Acetone–Butanol–Ethanol and Hydroxy
(BarranquillaFísicaSede Norte, 2021-06-07)Alternative fuels for internal combustion engines (ICE) emerge as a promising solution for a more sustainable operation. This work assesses combustion and performance of the dual-fuel operation in the spark ignition (SI) ...
-
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 ...
-
Análisis de los factores asociados a las tasas de retorno de los egresados universitarios en el mercado laboral colombiano
(BarranquillaEconomíaSede Norte, 2021-06-16)El presente trabajo tiene como objetivo analizar los factores asociados a las tasas de retorno de los egresados universitarios en el mercado laboral colombiano. La metodología aplicada es descriptiva y econométrica, ...
-
Tópicos en álgebra aplicada
(BarranquillaMatemáticasSede Norte, 2021-06-22)En los códigos que se usan para el envío de telecomunicaciones, se agregan dígitos redundantes a los mensajes que se pretende enviar con el fin de corregir los errores que se producen en su transmisión electrónica por causa ...
-
El otro en desafío Artes visuales y nuevos medios desde el Caribe
(BarranquillaSede Norte, 2021-06-23)El proyecto El Otro en Desafío formulado como evento inter y transdiciplinar fue un encuentro de creadores y pensadores en artes visuales y nuevos medios con la finalidad de plantear un debate amplio sobre el Otro en el ...
-
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 ...
-
7 décadas de vanguardia Bellas Artes (1940-2010)
(BarranquillaArte DramáticoSede Norte, 2021-06-23)En la actualidad estos vínculos permanecen, se fortalecen, y se hacen evidentes en acontecimientos como la conmemoración de los 70 años de fundación de la Escuela de Bellas Artes, hecho que reunió las obras de siete de los ...
-
Parametric Analysis of a Mechanical Draft Cooling Tower using Two Mathematical Models
(BarranquillaIngeniería QuímicaSede Norte, 2021-06-25)In the present work, a Matlab® computer code for cooling tower simulation was developed to perform a parametric analysis that determines the effect of the column cross-sectional area on multiple operating variables such ...
-
Índices de capacidad multivariados : nuevas propuestas
(BarranquillaSede Norte, 2021-06-25)Este texto de investigación que tengo el enorme agrado de presentar pretende motivar a aquellos investigadores o ingenieros responsables en el área de control estadístico de procesos, de aplicar nuevos conceptos de indicadores ...
-
Limited evidence of coupling between above and belowground functional traits in tropical dry forest seedlings
(BarranquillaBiologíaSede Norte, 2021-06-30)Introduction: Water availability is one of the main factors determining the distribution of woody species in the tropics. Although the functional mechanisms that determine the species tolerance to water deficit have been ...
-
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 ...
-
Formulation and existence of weak solutions for a problem of adhesive contact with elastoplasticity and hardening
(BarranquillaMatemáticasSede Norte, 2021-07-16)This paper presents the weak formulation of a quasi-static evolution model for two deformable bodies with unidirectional adhesive unilateral contact on which external loads act. Small deformations and linearized elastoplasticity ...
-
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 ...
-
On nearly S-paracompactness
(BarranquillaMatemáticasSede Norte, 2021-08-12)- The objective of the present work is to introduce the notion of α-nearly S-paracompact subset, which is closely related to α-nearly paracompact and αS-paracompact subsets. Moreover, we study the invariance under direct ...
-
Cristalización de vidrios bioactivos del sistema 31SiO2-11P2O5-(58-X) CaO –X MgO: influencia del tratamiento térmico y de la composición química
(BarranquillaSede Norte, 2021-08-30)En este trabajo se estudió la influencia de la composición química y del tratamiento térmico en la cristalización de biovidrios del sistema 31SiO2-11P2O5-(58-X) CaO –X MgO (X = 0, 2, 7, 16 y 32). El tratamiento térmico ...
-
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. ...