Artículo en revista de investigación: Envíos recientes
Mostrando ítems 421-440 de 946
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Correlación de arreglos de antenas con microcinta y amplio ancho de banda para 5G
(2021-07-15)En la actualidad se está viviendo una revolución con el uso de las tecnologías de la información, sobre todo en las redes móviles. Se están creando gran cantidad de usuarios y aplicaciones que surgen en las comunicaciones ... -
Soluciones axial simétricas estáticas de sistemas binarios en 5D
(2021-07-05)Usando una solución esta ́tica axial simétrica que describe un sistema binario de agujeros negros idénticos en un espacio-tiempo en cuatro dimensiones (4D), construimos y estudiamos a través de la estructura de barras, una ... -
On the Cantor and Hilbert cube frames and the Alexandroff-Hausdorff theorem
(2021-10-01)The aim of this work is to give a point-free description of the Cantor set. It can be shown that the Cantor set is homeomorphic to the p-adic integers for every prime number p. To give a point-free description of the Cantor ... -
Silica-Coated ZnS Quantum Dots for Multicolor Emission Tuning from Blue to White Light
(2021-11-04)The present work reports the easy tunability from blue to cold-white light emission of ZnS quantum dots embedded into a silica matrix (ZnS@SiO2) by simple heating treatments (up to 900 °C) without the need of rare earth ... -
Thermosensitive hydrogel for in situ-controlled methotrexate delivery
(2021-11-18)Abstract: Methotrexate (MTX) is widely used for the treatment of various types of cancer; however, it has drawbacks such as low solubility, lack of selectivity, premature degradation, and side effects. To solve these ... -
Prediction of time series using an analysis filter bank of LSTM units
(2021-04-29)Time series emerge in various applications such as financial data and production data, however, most of the generated data exhibit nonlinear inter-dependency between samples and noise, making necessary the development of ... -
Adsorption of serum protein in chitosan-coated and polyethyleneimine-coated magnetite nanoparticles
(2021-11-03)Magnetite (Fe3O4) nanoparticles provide several possibilities for a compelling platform for medical applications due to their magnetic properties. In the same way, functionalization with polymers provides several properties ... -
Shape effect of thickness of the NREL S815 profile on the performance of the H-rotor Darrieus turbine
(2021-01-29)With the aim of improving the performance of vertical axis wind turbines, in this article, the flow field and aerodynamic performance of an H-rotor Darrieus turbine are computed using computational fluid dynamics. ... -
Three-Bar structure optimality criterion using the linear resizing rule
(2021-08-31)The static analysis of the indeterminate three-bar structure is developed using the Castigliano’s first theorem, taking the lengths and inclination angles as variables. Some reductions are applied in the resulting set ... -
Susceptibility to Pitting Corrosion of Ti-CP2, Ti-6Al-2Sn-4Zr-2Mo, and Ti-6Al-4V Alloys for Aeronautical Applications
(2021-06-23)Titanium alloys are used in different industries like biomedical, aerospace, aeronautic, chemical, and naval. Those industries have high requirements with few damage tolerances. Therefore, they are necessary to use ... -
Revisiting the Dissimilarity Representation in the Context of Regression
(2021-11-23)In machine learning, a natural way to represent an instance is by a feature vector. However, several studies have shown that this representation may not characterize an object accurately. For classification problems, the ... -
Physicochemical properties of chitosan–magnetite nanocomposites obtained with different pH
(2021-08-10)The physicochemical properties of the nanoparticle surface determine the performance of nanocomposites in biomedical applications such as their biodistribution and pharmacokinetics. The physicochemical properties of chitosan, ... -
Epithelial Growth Factor-Anchored on Polycaprolactone/6 deoxy 6 amino B Cyclodextrin Nanofibers: In vitro and In vivo Evaluation
(2021-04-16)Polycaprolactone (PCL) is a well-known FDA approved biomaterial for tissue engineering. However, its hydrophobic properties limit its use for skin wound healing which makes its functionalization necessary. In this work, ... -
Improvements in the thermomechanical and electrical behavior of hybrid carbon-epoxy nanocomposites
(2021-10-30)In this work, polymeric composites of epoxy matrix reinforced with 1D and 2D nanocarbon allotropes are reported. Hybrid 3D nanostructures formed from 1D multi-walled carbon nanotubes and 2D graphene derivatives improve ... -
Microstructural defects in AISI 4000 series steel subjected to a 3% NaCl corrosion process.
(2021-07-30)AISI 4000 Series Steel IS one of the most important materials used in engineering. Steel Stainless achieves this degree of importance because of its combination of strength, ease of fabrication, and a wide range of ... -
Comparative Microstructural study of Inconel 625 used to turbochargers
(2021-07-30)Inconel 625 alloy is a nickel-based superalloy that is widely used in important engineering applications, such as in the manufacture of specific parts for the turbine engines of some automobiles and aircraft [1]. ... -
Online multi-criteria portfolio analysis through compromise programming models built on the underlying principles of fuzzy outranking
(2021-08-27)This paper introduces an interactive approach to support multi-criteria decision analysis of project portfolios. In high-scale strategic decision domains, scientific studies suggest that the Decision Maker (DM) can find ... -
Estudio numérico del fluido viscoso alrededor de un cilindro con Openfoam: Comparación entre dos dominios mallado
(2021-07-01)El fujo alrededor de un cilindro ha sido objeto de estudio por más de un siglo. En él se encuentran fenómenos como la formación de vórtices, el desprendimiento de capa límite, gradientes adversos de presión, entre muchos ... -
A Proposed Framework for Developing FMEA Method Using Pythagorean Fuzzy CODAS
(2021-11-23)The purpose of this research article is to develop a hybridization between the Failure Mode and Effect Analysis (FMEA) method and the Combinative Distance-Based Assessment (CODAS) method under Pythagorean Fuzzy environment. ... -
Risk Assessment With Value Added Pythagorean Fuzzy Failure Mode and Effect Analysis for Stakeholders
(2021-11-10)The new product development process (NPDP) is crucial for maintaining business up and running in manufacturing corporations worldwide. NPDP helps firms improve their profits, where stakeholder attention is mostly focused. ...