Browsing Investigaciones by Title
Now showing items 364-383 of 390
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Thermodynamic, exergo-economic and exergo-environmental analysis of hybrid geothermal-solar power plant based on ORC cycle using emergy concept
(BarranquillaIngeniería MecánicaSede Norte, 2020-04-06)Design and optimization of the energy system with the efficient method is one the major problem in recent years. The combined emergy-exergy-economic-environmental analysis is one of new methods selected for the optimization of ...
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Thermodynamic, Exergy and Environmental Impact Assessment of S-CO2 Brayton Cycle Coupled with ORC as Bottoming Cycle
(BarranquillaIngeniería MecánicaSede Norte, 2020-05-04)In this article, a thermodynamic, exergy, and environmental impact assessment was carried out on a Brayton S-CO2 cycle coupled with an organic Rankine cycle (ORC) as a bottoming cycle to evaluate performance parameters ...
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Thermoeconomic modelling and parametric study of a simple orc for the recovery ofwaste heat in a 2 MW gas engine under differentworking fluids
(BarranquillaIngeniería MecánicaSede Norte, 2019-10-25)This paper presents a thermo-economic analysis of a simple organic Rankine cycle (SORC) as a waste heat recovery (WHR) systems of a 2 MW stationary gas engine evaluating different working fluids. Initially, a systematic ...
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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 ...
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El Tiempo, uso y abuso
(BarranquillaArquitecturaSede Norte, 2020-02-01)Este artículo analiza y discute acerca de la razón fundamental por la que los estudiantes universitarios de la facultad de arquitectura de una universidad privada de Colombia, no utilizan bien el tiempo, en todas sus ...
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Time-reversal symmetry breaking in a square lattice
(BarranquillaSede Norte, 2021-04-06)The bulk conductivity of a two-dimensional system is studied assuming that time-reversal symmetry is broken by internal mechanisms. The study is carried out by direct diagonalization in order to explore the nonlinear-response ...
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Time-reversal symmetry breaking in a square lattice
(BarranquillaFísicaSede Norte, 2021-04-06)The bulk conductivity of a two-dimensional system is studied assuming that time-reversal symmetry is broken by internal mechanisms. The study is carried out by direct diagonalization in order to explore the nonlinear-response ...
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TiO2 thin films sensitization with natural dyes extracted from Bactris guineensis for photocatalytic applications: Experimental and DFT study
(BarranquillaQuímicaSede Norte, 2020-03-11)TiO2 thin films, sensitized by an anthocyanins-rich extract of a common species found in the Colombian Caribbean region (Bactris guineensis fruits), were used for the photocatalytic degradation of methylene blue. The ...
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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 ...
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Transcritical Bifurcations and Algebraic Aspects of Quadratic Multiparametric Families
(BarranquillaMatemáticasSede Norte, 2021-01-05)This article reveals an analysis of the quadratic systems that hold multiparametric families therefore, in the first instance the quadratic systems are identified and classified in order to facilitate their study and ...
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Las transformaciones en los espacios periurbanos y el rol de la planificación territorial en su configuración el caso del municipio de Glapa, Atlántico
(BarranquillaSede Norte, 2018-06-01)Los espacios periurbanos son hoy día los espacios más tensionados por la transformación urbanizadora. La necesidad de disponer de extensas superficies de terreno para atender a la demanda para los usos que reclama la ...
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Transperiferismo, necropolítica y sufrimiento social. Etnografía experimental sobre las condiciones de vida de inmigrantes venezolanos en el Caribe colombiano
(BarranquillaLicenciatura en Ciencias SocialesSede Norte, 2020-06-21)Objetivos En este trabajo exploramos la crueldad y el sufrimiento que experimentan inmigrantes venezolanos que habitan en un asentamiento irregular llamado Villa Caracas, en la periferia de Barranquilla. Nuestro objetivo ...
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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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La tubería empresarial de los países
(BarranquillaSede Norte, 2018-10-07)Desde las últimas dos décadas, principalmente, la actividad empresarial ha estado en un primer plano de interés académico e investigativo para entender cómo se generan las nuevas empresas y cómo es el entorno de los ...
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Tutela contra sentencia judicial en Colombia: ámbito de disertación de la jurisprudencia constitucional
(BarranquillaSede Norte, 2021-11-05)El proceso constitucional tiene por objeto garantizar derechos fundamentales vulnerados, es así que este orden de ideas cabe destacar que la protección de la acción de tutela contra sentencias judiciales es un problema que ...
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Uncoupled Majorana fermions in open quantum systems: On the efficient simulation of non-equilibrium stationary states of quadratic Fermi models
(BarranquillaFísicaSede Norte, 2021-01-14)A decomposition of the non-equilibrium stationary state of a quadratic Fermi system influenced by linear baths is obtained and used to establish a simulation protocol in terms of tensor states. The scheme is then applied ...
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Unveiling the age and origin of biogenic aggregates produced by earthworm species with their NIRS fingerprint in a subalpine meadow of Central Pyrenees
(BarranquillaSede Norte, 2020-08-12)In this study the near-infrared reflectance (NIR) spectra signals (750–2,500 nm) of soil samples was compared with the NIR signals of the biogenic aggregates produced in the lab by three earthworm species, i.e., Aporrectodea ...
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Use of sludge ash from drinking water treatment plant in hydraulic mortars
(BarranquillaIngeniería QuímicaSede Norte, 2020-01-13)The present study investigated the use of sludge ash from water treatment plants as supplementary cementing material, elaborating hydraulic mortars with different levels of cement replacement by sludge ash (10 wt% and 30 ...
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Using a Separable Mathematical Entropy to Construct Entropy-Stable Schemes for a Reduced Blood Flow Model
(BarranquillaLicenciatura en MatemáticasSede Norte, 2022-09-13)The aim of this paper is to derive a separable entropy for a one-dimensional reduced blood flow model, which will be used to treat the symmetrizability of the model in full generality and for constructing entropy ...
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Uso de las TIC en Arquitectura: experiencia de un programa tecnólogo de la Universidad del Atlántico, Barranquilla, Colombia
(BarranquillaArquitecturaSede Norte, 2020-12-01)Analizar los procesos de enseñanza basados en el uso de las Tecnologías de la Información y Comunicaciones (TIC) de los docentes del programa Tecnología en Gestión de la Construcción de Proyectos Arquitectónicos y su ...
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