Artículo en revista de investigación: Envíos recientes
Mostrando ítems 281-300 de 981
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Abstracción y transferencia del concepto de variación en distintos contextos y representaciones
(2022-04-08)La presente investigación tiene como finalidad analizar los niveles de abstracción en el estudiante en situaciones que involucran un pensamiento variacional. Esta investigación se llevó a cabo dentro de la Universidad ... -
Semimetal transition in curved MoS2/ MoSe2 Van der Waals heterojunction by dispersion‑corrected density functional theory
(2022-10-24)We present a theoretical study for MoS2/MoSe2 Van der Waals heterojunction in the armchair direction, and periodicity in the y-direction, under the mechanical deformation process to explore electronic structure vs. curvature ... -
Comparing workload and performance during demanding push force and mental tasks
(2022-12-26)Abstract: BACKGROUND:The effects of performing occupational tasks that demand physical and mental efforts in combined and simultaneous approaches are unknown, especially when pushing force is analyzed as a physical effort ... -
Análisis de carga mental y molestias musculoesqueléticas en conductores de transporte público en Ciudad Juárez, Chihuahua México
(2022-12-22)En Ciudad Juárez, México, el servicio de transporte público carece de condiciones seguras atribuidas al estado de las calles, a las pobres condiciones de trabajo de los conductores y malas condiciones de los camiones. Esta ... -
New Formulation to Synthetize Semiconductor Bi2S3 Thin Films Using Chemical Bath Deposition for Optoelectronic Applications
(2022-11-24)Abstract: Anisotropic materials possess direction dependent properties as a result of symmetry within their structure. Bismuth sulfide (Bi2S3) is an important semiconductor exhibiting anisotropy due to its crystalline ... -
A reliability analysis for electronic devices under an extension of exponentiated perks distribution
(2022-12-29)This paper presents a reliability analysis for electronic devices (ED) with bathtub curve-shaped failure times. An extension of the exponentiated perks distribution (EPD) is proposed for the analysis. The extension of ... -
Bioactividad y biocompatibilidad de compósitos de zirconia estabilizada con Y/ hidroxiapatita-Cu, Fosfato Tricálcico-Ag o Fosfato Tricálcico-Ga
(2022-06-28)The biological compatibility of bone and dental implants is limited, since it is placed until a long time after it has been implanted, due to its low resistance of infections attributed to a quick degradation of the implant ... -
O-carboxymethyl chitosan/gelatin/ silver-copper hydroxyapatite composite films with enhanced antibacterial and wound healing properties
(2022-08-21)Wound dressing composite films of O-carboxymethyl chitosan (OCMC) and gelatin were prepared and mixed with hydroxyapatite (HA) composited with Silver (Ag) and Copper (Cu) at different concentrations. The chemical, ... -
Evaluación físico-química de compositos madera-plástico para el diseño de productos
(2022-06-21)Los residuos de madera son tratados comúnmente como desecho y existe un problema para su disposición. Actualmente, las fibras son utilizadas para producir papel, material de construcción y bioplásticos; aunque han sido ... -
Design of a Neural Super-Twisting Controller to Emulate a Flywheel Energy Storage System
(2021-10-07)In this work, a neural super-twisting algorithm is applied to the design of a controller for a flywheel energy storage system (FESS) emulator. Emulation of the FESS is achieved through driving a Permanent Magnet Synchronous ... -
The effectiveness of published continuum constitutive laws to predict stress-assisted densification of powder compacts
(2022-10-10)Commonly used constitutive laws for crystalline and viscous materials have been compared to predict the densification behavior under hot-pressing and sinter-forging. Experimental results, from literature for one loading ... -
Composite scaffolds of chitosan/polycaprolactone functionalized with protein of Mytilus californiensis for bone tissue regeneration
(2022-03-30)Nowadays, the treatment for bone damage remains a significant challenge. As a result, the development of bioactive three-dimensional scaffolds for bone regeneration has become a key area of study within tissue engineering. ... -
Influence of Rare Earths Additions on the Microstructure and Hardness of Heat-treated Nanostructured Superalloy Inconel 718
(2022-07-22)The superalloy Inconel 718 is greatly employed in high-temperature applications due to its principal characteristics: high resistance to oxidation and excellent mechanical performance at elevated temperatures; hence, its ... -
Phase composition and its effect on the mechanical performance of an AlCoCrFeNiTi high-entropy alloy
(2022-03-09)The concept of High-Entropy Alloy (HEA) expanded the research field of advanced metallic materials for various applications, like the development of ultra-hardness ballistic protection materials for national security. ... -
Diseño de sistemas de control de velocidad en lazo cerrado aplicados al motor de corriente directa
(2022-04-08)Se presenta la metodología de diseño de sistemas de control de velocidad para un motor de corriente directa con magnetización constante. Se proponen tres tipos de controladores; el primero es un controlador proporcional-integral ... -
Photocatalytical degradation of methyl orange (MO) using ZnO nanoparticles from alkaline wasted batteries. The effect of the MO, catalyst, and organic loads
(2022-11-01)The photocatalytic degradation of methyl orange (MO) using ZnO nanoparticles is reported. NPs in the range of 40-60 nm were obtained from wasted alkaline batteries anodes. The effect of the MO concentration and the catalyst ... -
ANÁLISIS Y EVALUACIÓN DEL PROCESAMIENTO PARALELO DE SEÑALES ACÚSTICAS
(2022-01-10)Las GPU son unidades especializadas para el procesamiento de gráficos, éstas tienen un gran número de núcleos los cuales trabajan en paralelo. En MATLAB existen funciones asociadas a la arquitectura CUDA, creada por NVIDIA®, ... -
Factores que influyen en la selección de un Campus del TecNM: diseño y validación de un instrumento de medida
(2022-01-19)La Capacidad de Innovación –CIn– constituye una importante fuerza impulsora y de adaptación, y es considerada indispensable en las empresas que operan en ambientes de alta competencia, donde se observa una creciente ... -
Estimation of the lifespan distribution of gold nanoparticles stabilized with lipoic acid by accelerated degradation tests and wiener process
(2022-07-06)Accelerated degradation tests (ADT) are widely used in the manufacturing industry to obtain information on the reliability of components and materials, by degrading the lifespan of the product by applying an acceleration ...