Artículos: Recent submissions
Now showing items 721-740 of 4223
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Emotions associated with the process of construction the parallelepiped volume [Emociones asociadas al proceso de construcción del volumen del paralelepípedo]
(Universidad NacionalPsicologíaCiencias BásicasFacultad de Ciencias BásicasFacultad de Ciencias Sociales y Humanas, 2022)This study analyzes the emotions of students between 14 and 17 years of age when they autonomously construct a rectangular box in 2D and 3D that represents the volume of a parallelepiped, using Cabri II Plus software. The ... -
Embedded discrete farcture networks to analyze groundwater inflows during tunnel drilling [Redes de fracturas discretas embebidas para el análisis de infiltraciones de agua subterránea durante la excavación de túneles]
(Universidad Nacional de ColombiaIngeniería AmbientalFacultad de Ingenierías, 2022)Tunnels commonly go through fracture zones, which are analyzed as an equivalent porous medium with homogeneous permeability. However, this is a rough simplification that overlooks the connection triggered by underground ... -
Electronic and optical properties of an electro-magnetic non-uniform narrow quantum ring under repulsive scattering centre
(Taylor and Francis Ltd.Ciencias BásicasFacultad de Ciencias Básicas, 2021)Non-uniform height semiconductor quantum rings are studied in order to determine their electronic and optical absorption properties. Theoretical modelling of the structure includes an analytical description of the non-regular ... -
Enhancing phosphorus release from struvite with biostimulants
(Agricultural Institute of CanadaIngeniería AmbientalFacultad de Ingenierías, 2021)Struvite is a phosphorus (P)-rich by-product of wastewater treatment facilities that can be recycled as a P source in agriculture. Because struvite is not water soluble, it is solubilized gradually by organic acids released ... -
Effects of Hot Isostatic Pressing on the Characteristics of PM Processed Mg-Based Alloys
(SpringerIngeniería de MaterialesFacultad de Ingenierías, 2022)Powder metallurgy (PM) involves processes of mechanical milling, pressing, and sintering. The last of these can be done by different methods. One promising such method is hot isostatic pressing (HIP), which improves on ... -
Effects of two-step high-energy ball milling process and hot isostatic pressing on the mechanical properties of PM magnesium
(Springer Science and Business Media Deutschland GmbHIngeniería de MaterialesFacultad de Ingenierías, 2022)Commercial powders of magnesium were processed by high-energy ball milling (HEBM) using a two-stage composite process. The microstructural and morphological evolution of the powders was studied using scanning electron ... -
Electronic, Optical, and Magnetic Properties of Doped Triangular MoS2 Quantum Dots: A Density Functional Theory Approach
(John Wiley and Sons IncCiencias BásicasFacultad de Ciencias Básicas, 2022)A theoretical investigation on electronic states in triangular MoS2 quantum dots of different sizes is performed within density functional theory first-principles formalism. Herein, the associated interband optical response ... -
Disruptive and Conventional Technologies for the Support of Logistics Processes: A Literature Review
(Faculty of Engineering, Universitas IndonesiaAdministración de EmpresasFacultad de Ciencias Económicas y Administrativas, 2021)The supply chain has become a key element of increasing the productivity and competitiveness of companies. To achieve this, it is essential to implement a strategy based on the use of technologies, which depends on knowledge ... -
Eco-friendly materials obtained through a simple thermal transformation of water hyacinth (Eichhornia Crassipes) for the removal and immobilization of Cd2+ and Cu2+ from aqueous solutions
(Elsevier B.V.Ciencias BásicasFacultad de Ciencias Básicas, 2021)Industrialization activities have led to the discharge of heavy metals into water, with an imminent threat to the environment. The use of natural materials as low-cost sorbents for the removal of heavy metals from aqueous ... -
Effect of using effluent from anaerobic digestion of vinasse as water reuse on ethanol production from sugarcane-molasses
(Elsevier B.V.Ingeniería AmbientalFacultad de Ingenierías, 2021)Current global prospects of increasing ethanol production face the problem of one of the highest consumptions of fresh water and the generation of large volumes of effluents. This study evaluated the reuse of effluent from ... -
Digital evidence resulting from covert surveillance: Collection, admissibility and assessment in criminal proceedings in spain and colombia [La prueba digital producto de la vigilancia secreta: Obtención, admisibilidad y valoración en el proceso penal en España y Colombia]
(Instituto Brasileiro de Direito Processual PenalDerechoFacultad de Derecho, 2021)This article analyzes some problematic issues regarding the collection, admissibility and assessment in criminal proceedings of digital evidence resulting from covert surveillance, within the scope of the digital era, from ... -
Economic Regulation Oriented to the sharing economy: An approach from target 10.3 of the 2030 agenda
(Elsevier LtdEconomíaAdministración de EmpresasFacultad de Ciencias Económicas y Administrativas, 2021)This work is focused on target 10.3 of the 2030 Agenda, which seeks to “Ensure equal opportunity and reduce inequalities of outcome, including by eliminating discriminatory laws, policies, and practices and promoting ... -
Domestic violence in contexts of COVID-19: Realities of institutional protection for subjects of special protection in emergency scenarios [La violencia intrafamiliar en contextos de COVID-19: Realidades del amparo institucional a sujetos de especial protección en escenarios de emergência]
(Centro Universitario de BrasiliaDerechoFacultad de Derecho, 2021)The objective of this work is to analyze the real and effective protection of the State to the victims of intrafamily violence as subjects of special protection: women and minors, in pandemic contexts, trying to show the ... -
Dimensions affecting democracy quality at Colombia subnational level [Dimensiones que afectan la calidad de la democracia a nivel subnacional en Colombia]
(Maestría en conflicto y pazFacultad de Ciencias Sociales y Humanas, 2021)This paper presents an analysis of the quality of democracy at the sub-national level in Colombia, guided by two questions: which dimensions of analysis have the greatest impact on the quality of democracy at the sub-national ... -
Effect of ball size on the microstructure and morphology of mg powders processed by high-energy ball milling
(MDPIIngeniería de MaterialesFacultad de Ingenierías, 2021)Commercial powders of pure magnesium were processed by high-energy ball milling. The microstructural and morphological evolution of the powders was studied using scanning electron microscopy (SEM), energy dispersive ... -
DISCURSIVE CONSTRUCTIONS OF THE HORRENDOUS AND BODY MAPPINGS OF THE DEFORMED: ELEPHANTIASIS IN COLOMBIA (1847-1868) [CONSTRUCCIONES NARRATIVAS DE LO HORRENDO Y CARTOGRAFÍAS CORPORALES DE LO DEFORME: ELEFANTIASIS EN COLOMBIA (1847-1868)
(Universidad de TarapacaMaestría en educaciónFacultad de Ciencias Sociales y Humanas, 2021)This text aims to show how narrative of the disease was configured in the register of Colombian clinical thought between 1847 and 1868, with elephantiasis as the horizon for analysis. This medical panorama was manifested ... -
Detección de partículas a nivel de educación básica usando hardware y software libre
(Sociedad Mexicana de FisicaCiencias BásicasFacultad de Ciencias Básicas, 2021)This article demonstrates the feasibility of teaching in secondary education institutions, the basic principles of high-energy experimental physics using low-cost equipment. The use of free hardware and software is emphasized ... -
Determination of laminar burning velocity of methane/air flames in sub atmospheric environments
(Scientific RouteIngeniería en EnergíaFacultad de Ingenierías, 2021)The global energy demand enhances the environmental and operational benefits of natural gas as an energy alternative, due to its composition, mainly methane (CH4), it has low polluting emissions and benefits in energy and ... -
Detection of fraud due to misleading customer claims in banking entities through data mining techniques: a systematic review. [Detección de fraudes por reclamos engañosos de clientes en entidades bancarias a través de técnicas de minería de datos: una revisión sistemática.]
(Associacao Iberica de Sistemas e Tecnologias de InformacaoIngeniería de SistemasCiencias BásicasFacultad de IngenieríasFacultad de Ciencias Básicas, 2021)In the banking sector there are claims from customers, and as in the insurance sector, some correspond to cases of fraud. This work seeks to provide a literature review that allows an account of the data mining work that ... -
Development of a Modular Software Architecture for Underwater Vehicles Using Systems Engineering
(MDPIIngeniería de SistemasFacultad de Ingenierías, 2022)This paper addresses the development of a modular software architecture for the de-sign/construction/operation of a remotely operated vehicle (ROV), based on systems engineering. First, systems engineering and the Vee model ...