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Mostrando ítems 1072-1091 de 1794
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Low temperature synthesis of alpha alumina platelets and acicular mullite in MgO-Al2O3-SiO2 system
(2019-03-15)The refractory materials are more reliable and less expensive, this research is based on materials like alumina and mullite because it offers a very high refractoriness. In the present study an acicular mullite and a-alumina ... -
Low-temperature synthesis of cds and zns nanoparticles by solution method using an anionic surfactant
(2018-11-01)In this work, we present a novel and simple solution method to synthesize cadmium sulfide (CdS) and zinc sulfide (ZnS) nanoparticles (Nps). The solution-based processes for CdS and ZnS were carried out at room temperature ... -
Low-temperature synthesis, enhanced reaction times and characterization of TiO2 nanoparticles by a microwave assisted sol-gel method for its application in green industry.
(Sociedad Mexicana de Ciencias y Tecnología de Superficies y Materiales A.C., 2020-10-19)In the present work, TiO2 nanoparticles were prepared by the microwave-assisted sol-gel method and their link with the green industrial sector was evaluated. The synthesis was carried out without the presence of any ... -
Lower Secondary School Mathematics Teachers’ TopicSpecific Content Knowledge in the U.S. and Russia
(2019-03-01)This interpretive cross-case study examined the U.S. and Russian teachers’ topic-specific knowledge of lower secondary mathematics. In total, N=16 teachers (8 from the U.S., and 8 from Russia) were selected for the study ... -
Machinery Lean Manufacturing Tools for Improved Sustainability: The Mexican Maquiladora Industry Experience
(2022-04-27)This paper reports a structural equation model (SEM) to quantify the relationship between Lean Manufacturing (LM) tools associated with machinery and sustainability. The LM tools are independent variables and include Total ... -
Macroergonomics for Manufacturing Systems An Evaluation Approach
(Springer International Publishing AG, 2018-03-10) -
Magnetic and martensitic transformations of Ni48Co2Mn35In15 melt spun ribbons
(2018-08-30)As-solidified Ni48Co2Mn35In15 ribbons were prepared through the melt-spinning method, and their structural, magnetic, magnetocaloric properties, and martensitic transformations were investigated. The inverse martensitic ... -
Magnetic properties of GaAs:Mn self-assembled nanostructures grown at relatively high-temperature by Molecular Beam Epitaxy
(2019-04-01)We report the influence of the Mn atomic concentration (at.%) on the nanostructures formation and magnetic properties of GaAs:Mn layers grown by Molecular Beam Epitaxy at a relatively high substrate temperature of 530 °C ... -
Magnetite nanoparticles coated with PEG 3350-tween 80: In vitro characterization using primary cell cultures
(2020-02-02)Some medical applications of magnetic nanoparticles require direct contact with healthy tissues and blood. If nanoparticles are not designed properly, they can cause several problems, such as cytotoxicity or hemolysis. A ... -
Magneto Hyperthermia
(CRC Press, 2023-10-05)This chapter deals with magneto hyperthermia from a perspective that allows an understanding of the fundamentals associated with nanoparticles. First, it covers some clinical bases on the effect of hyperthermia on cancer ... -
Magnetocaloric effect in ErNi2 melt-spun ribbons
(2019-08-17)ErNi2 ribbons were produced by rapid solidification using the melt spinning technique. Their structural, magnetic and magnetocaloric properties in the as-solidified state were studied by X-ray diffraction, scanning electron ... -
Magnetoelastic transition and magnetocaloric effect in induction melted Fe100-xRhx bulk alloys with x = 50, 51
(2021-03-23)Magnetoelastic transitions (METs) in bulk in nearly equiatomic Fe-Rh alloys produced by arc melting may show poor reproducibility related to insufficient chemical homogeneity and presence of impurity phases in variable ... -
Magnetostructural transition and magnetocaloric effect in thermally annealed Mn0.5Fe0.5NiSi0.945Al0.055 melt-spun ribbons
(2021-04-19)Were fabricated melt-spun ribbons of the quinary alloy Mn0.5Fe0.5NiSi0.945Al0.055. After an annealing time of 4 h at temperatures between 1073 K and 1223 K, samples underwent a martensitic-like magnetostructural transformation ... -
Magnetostructural transition and magnetocaloric effect in thermally annealed Mn0.5Fe0.5NiSi1-xAlx melt- spun ribbons (x= 0.055 and 0.060)
(AIP Publishing, 2022-11-04)The giant magnetocaloric (MC) effect measured in Mn0.5Fe0.5NiSi1-xAlx alloys ( 0.05 < x < 0.07) for a low magnetic field change (|ΔSM|max ~16-24 Jkg-1K-1 at 2 T) [1], and the fact that they are based on cheap and abundant ... -
Magnetostructural transition and magnetocaloric effect in thermally annealed Mn0.5Fe0.5NiSi1-xAlx melt-spun ribbons (x= 0.055 and 0.060)
(2023-02-08)Melt-spun ribbons samples of the multicomponent alloy Mn0.5Fe0.5NiSi0.940Al0.060 were prepared and the magnetostructural transition (MST) and related magnetocaloric properties studied for as-solidified ribbons and ribbon ... -
Magnetostructural transitions and magnetocaloric effects in Ni50Mn35In14.25B0.75 Ribbons
(2018-01-12)The structural, thermal, and magnetic behaviors, as well as the martensitic phase transformation and related magnetocaloric response of Ni50Mn35In14.25B0.75 annealed ribbons have been investigated using room-temperature ... -
Major and trace element geochemistry of Permo-Triassic granitoids from NW Sonora, Mexico: Constraints on the origin of the Late Paleozoic-early Mesozoic Cordilleran magmatic arc along SW Laurentia
(2022-06-07)Permo-Triassic granitoids (PTGs) (284–224 Ma) crop out in Sierra Los Tanques (SLT) and surrounding areas in NW Sonora, Mexico. Based on mineralogical and geochemical characteristics, the PTGs are subdivided into three main ... -
Mantenimiento de Equipo Científico del Laboratorio de Electrónica Flexible
(2019-11-30)“Mantenimiento de Equipo Científico del Laboratorio de Electrónica Flexible” 1. Objetivo general Adquirir garantías de mantenimiento, refacciones/accesorios para equipo científico de Laboratorio de Electrónica Flexible. 2. ... -
Mantenimiento del equipo de microscopía electrónica de barrido de la UACJ adquirido en 2016 para el fortalecimiento de Posgrados y Cuerpos Académicos afines
(2019-11-28)MANTENIMIENTO Y SERVICIO: Durante 24 meses, se incluye el paquete de mantenimiento preventivo, de manera gratuita. La cobertura de este paquete de servicio respalda cualquier falla del equipo, incluyendo mano de obra, ... -
MANUAL SEGMENTATION IN ECHOCARDIOGRAPHIC IMAGING OF AORTIC STENOSIS
(ICONIS, 2021-10-29)Automation for the analysis of medical images requires correct interpretation and this has been a problem of interest in the area of cardiology. Segmentation in cardiac images is the fundamental part for the specialist to ...