Investigaciones: Envíos recientes
Mostrando ítems 261-280 de 390
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CLASSES OF ALGEBRAS AND CLOSURE OPERATIONS
(BarranquillaSede Norte, 2021-02-17)The calculus of classes and closure operations has proved to be a useful tool in group theory and has led to a deep theory in the study of finite soluble groups. More recently, parallel theories have started to be ...
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NEW GENERALIZED APOSTOL-FROBENIUS-EULER POLYNOMIALS AND THEIR MATRIX APPROACH
(BarranquillaSede Norte, 2019-01-25)In this paper, we introduce a new extension of the generalized ApostolFrobenius-Euler polynomials H [m−1,α] n (x; c, a; λ; u). We give some algebraic and differential properties, as well as, relationships between this ...
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Evaluation of the Corrosion Resistance of AISI 316l Steel Subjected to Severe Deformation Using the Groove Pressing Technique
(BarranquillaSede Norte, 2019-11-25)In this investigation, samples of AISI 316L steel were subjected to severe plastic deformation by the groove pressing (GP) technique using 2 dies A2 type tool steel dies with dimensions of 96 mm X 96 mm, a corrugated die ...
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Effect of Thermal Cycling on Abrasive Wear Response of Cu-1.9Be-0.25(Co+Ni) Alloy
(BarranquillaSede Norte, 2020-08-24)Cu-Be alloys are considered high strength alloys when containing 0.2% to 2% of Be per weight, 0.2% to 2.7% of Co per weight, and up to 2.2% of Ni per weight, since they can present an elastic limit higher than 1380 MPa ...
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Obtención y caracterización de harinas compuestas de Cucurbita moschata D. y Cajanus cajan L. como fuentes alternativas de proteína y vitamina A
(BarranquillaSede Norte, 2020-02-17)Se estudió la utilización de guandul (Cajanus cajan L.) y ahuyama (Cucurbita moschata D.) como alternativas nutricionales y tecnológicamente viables para la elaboración de harinas compuestas con destino a la preparación ...
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NEW BIPARAMETRIC FAMILIES OF APOSTOL-FROBENIUS-EULER POLYNOMIALS OF LEVEL m
(BarranquillaMatemáticasSede Norte, 2020-10-27)We introduce two biparametric families of Apostol-Frobenius-Euler polynomials of level m. We give some algebraic properties, as well as some other identities which connect these polynomial class with the generalized ...
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Virtual Education for All: Systematic Review
(BarranquillaSede Norte, 2020-06-15)This article deals with the systematic review of the literature on virtual education for all. Accurately, this work responds to questions such as: What are the technological and pedagogical considerations to implement ...
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Técnicas de desarrollo organizacional para la actualización tecnológica del docente en instituciones de educación superior
(BarranquillaAdministración de EmpresasSede Norte, 2020-10-01)Esta investigación caracteriza las técnicas de desarrollo organizacional para la actualización tecnológica del docente en instituciones públicas de educación superior de la región caribe (Colombia). La metodología fue ...
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CALIDAD DE VIDA LABORAL EN CARTAGENA, BARRANQUILLA Y SANTA MARTA
(BarranquillaSede Norte, 2020-01-10)Recientemente, las principales ciudades del Caribe colombiano han alcanzado las menores cifras de desempleo en el país. Sin embargo, presentan altas tasas de informalidad. Así, este artículo tiene como objetivo analizar ...
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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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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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