Artículo en revista de investigación: Envíos recientes
Mostrando ítems 761-780 de 1091
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Effect of Ni additions and hot deformation on precipitation behavior and hardness in AleSieMg aged alloys
(2020-02-19)Additions of 1e2 Ni (wt. %) and hot deformation on the microstructure and hardness of A356 aged alloy were studied. The results show that the addition of this element generates the formation of Ni31Si12 and NiFe phases ... -
Síntesis y Caracterización de Nanopartícula s de NiS Mediante Procedimiento de Química Suave
(2020-11-05)In this research, the synthesis and characterization of nickel sulphide (NiS) semiconductor nanoparticles (Nps) in solution is reported, the effect of glycine as complexing agent at different concentration was studied. The ... -
Multi-physics continuum modelling approaches for metal powder additive manufacturing: a review
(2020-03-14)This paper aims to present a systematic approach in the literature survey related to metal additive manufacturing (AM) processes and its multi-physics continuum modelling approach for its better understanding. Design/me ... -
Weibull S-N Fatigue Strength Curve Analysis for A572 Gr. 50 Steel, Based on the True Stress—True Strain Approach
(2020-08-18)In this paper a Weibull methodology to determine the probabilistic percentiles for the S-N curve of the A572 Gr. 50 steel is formulated. The given Weibull/S-N formulation is based on the true stress and true strain values, ... -
Control de balanceo de una motocicleta autónoma mediante una rueda de reacción
(2019-10-20)Uno de los prototipos más empleados para la enseñanza de estrategias de control moderno son los llamados péndulos invertidos: péndulo invertido, carro péndulo, péndulo con rueda inercial o de reacción, entre otros. En este ... -
Patrones de concentración de carbono negro y principales fuentes de emisión en Ciudad Juárez, Chihuahua, México
(2020-06-27)El carbono negro (CN) es un contaminante atmosférico producido de forma natural y como resultado de la combustión incompleta de combustibles fósiles, biocombustibles y biomasa. La región Paso del Norte (México-Estados ... -
Implementación de diagramas de tortuga para el cumplimiento de la norma ISO 9001:2015 / TL 9000:2016
(2020-06-30)La norma ISO 9001:2015 o TL 9000:2016 busca en su apartado 4.4.1 desarrollar una parte del contexto organizacional, por lo que las empresas deben desarrollar una metodología adecuada para el cumplimiento ... -
Implementación de mejoras en el proceso de pruebas de limpieza de producto automotriz
(2020-06-30)El producto bajo estudio en el presente artículo es un arnés automotriz cuya condición crítica de calidad está dada por la limpieza interna de sus componentes, dado que esto permite garantizar el buen funcionamiento del ... -
Ranking-based MCDM models in financial management applications: analysis and emerging challenges
(2020-05-18)Over the last decades, the academic and professional communities have paid much attention toward the use of multi-criteria decision-making methods in a range of business and financial problems due to the variety and ... -
Phase transformation and magnetocaloric effect of Co-doped Mn–Ni–In melt-spun ribbons
(2020-08-06)Ribbon-shaped magnetocaloric materials are favorable to achieve high heat-transfer efficiencies due to their large specific surface area. In this work, Mn50Ni41−xIn9Cox (0 ≤ x ≤ 4) ribbons were prepared using a melt-spinning ... -
Exceptional Algebraic Sets for Infinite Discrete Groups of PSL(3, C)
(2020-06-29)In this note we show that the exceptional algebraic set for an infinite discrete group in 𝑃𝑆𝐿(3,ℂ) should be a finite union of: complex lines, copies of the Veronese curve or copies of the cubic 𝑥y^2−z^3. -
Genetic Algorithm for Scheduling Optimization Considering Heterogeneous Containers: A Real-World Case Study
(2020-03-04)In this paper, we develop and apply a genetic algorithm to solve surgery scheduling cases in a Mexican Public Hospital. Here, one of the most challenging issues is to process containers with heterogeneous capacity. Many ... -
In-plane anisotropy in BSCCO superconducting tapes: transport and magnetometric criteria
(2020-07-01)Here, the anisotropy between the longitudinal and transverse directions of multi-filamentary tapes (“in plane" anisotropy) is studied by transport and magnetization measurements. By minimally manipulating experimental data, ... -
Design and fabrication of a cryogenic magnetocaloric composite by spark plasma sintering based on the RAl2 Laves phases (R= Ho, Er)
(2020-08-05)We report the design and fabrication of a highly dense (>97%) two-phase magnetocaloric composite operating in the cryogenic temperature range based on the binary Laves phases HoAl2 and ErAl2 with a nearly table-like magnetic ... -
Design and validity of a questionnaire for measuring psychosocial risk factors and burnout
(2020-07-01)In recent years, burnout has emerged as one of the most important work risks. Continuous chronical emotional and interpersonal stressors at the workplace can lead to burnout. Among those, psychosocial risk factors are ... -
Análisis logístico y simulación de una calle de retorno paralela en un aeropuerto regional
(2020-08-14)La evolución y el desarrollo de la industria aeronáutica exigen que día a día este medio de transporte implemente metodologías que encaminan a la seguridad operacional de las aeronaves, afortunadamente vivimos en una era ... -
Suppliers selection based on intuitionistic fuzzy dimensional analysis
(2020-08-11)Supplier selection is a crucial activity in the supply chain management, and fundamentally it is a multi-criteria decision-making problem. However, the interaction of the criteria, the uncertain regarding to subjectivity ... -
Recycled glass and Ce‐Doped‐Y3Al5O12 nanoparticles phosphor‐in‐glass for white light‐emitting diodes applications
(2020-06-07)A series of nanocomposites of recycled soda‐lime glass from a glass container and Y3Al5O12:Ce3+ (YAG:Ce) phosphor nanoparticles are fabricated by the two‐step low‐temperature co‐sintering technology. A transparent glass ... -
Modelado por elemento finito de la fatiga en engranes de reductores de velocidad con desalineamiento radial y axial
(2020-06-01)Este artículo presenta un análisis de fatiga en engranes de reductores de velocidad sometidos a desalineamiento radial y axial. Se empleó el método del elemento finito para el cálculo de los ciclos de vida y del estado de ... -
Wide structural and magnetic successive transitions and related magnetocaloric properties in a directionally solidified polycrystalline Ni-Co-Mn-In alloy
(2020-02-21)We fabricated a Ni45Co6.4Mn37In11.6 polycrystalline sample with a specific texture by directional solidification. The alloy is characterized by wide successive structural and magnetic phase transitions that considerably ...