Results 21 to 30 of about 37,842 (283)

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

open access: yesAdvanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi   +3 more
wiley   +1 more source

Metodología para selección tribológica de lubricantes para formado de cuerpos de aluminio [PDF]

open access: yes, 2007
Los refrigerantes para el “formado de cuerpo” de latas de aluminio consisten de emulsiones de aceite en agua los cuales son utilizados como lubricantes en el proceso de planchado.
Chiñas Castillo, Fernando   +1 more
core  

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Análisis tribológico en un motor de gasolina con dos marcas de lubricantes y la misma especificación

open access: yesInnova Research Journal, 2017
En la actualidad el lubricante de un motor para automóvil no es tomado con la importancia del caso, haciendo que los consumidores le den mayor importancia al precio del mismo antes que a su calidad, y componentes. La investigación realizó un análisis de
Edwin Puente   +3 more
doaj   +1 more source

Implementación de una rutina lubricación para las máquinas de tejer de textiles Omnes [PDF]

open access: yes, 2016
Es de suma importancia resaltar que la lubricación de los equipos hace parte del mantenimiento preventivo, y que su control tiene gran relevancia para los funcionamientos óptimos de estos mismos, así entonces el consumo de lubricantes y los dinamismos de
Osorio Piedrahita, Julián Andrés
core  

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Divas de los siglos XX y XXI o la manifestación del feminismo natural… ¿o feminismo popular?

open access: yesPopular Music Research Today, 2022
Los personajes mediáticos que han construido las divas del humor y la extravagancia a lo largo de los siglos XX y XXI, han ido generando en los imaginarios colectivos un nuevo arquetipo actual: la Divina Femenina, un perfil de la mujer completa en todos ...
Deborah González Jurado
doaj   +1 more source

Desarrollo de una propuesta de aprovechamiento de los residuos grasos lácteos provenientes de la empresa Levelma S.A.S. [PDF]

open access: yes, 2017
The development of the project began with the diagnosis of a sample of milk fat residues, which were sent to the Biotrends S.A.S. laboratory. The physicochemical results obtained were then analyzed and the different factors such as percentage of moisture,
Martínez Castro, Laura Alexandra   +1 more
core  

Contraceptive methods [PDF]

open access: yes, 1999
El objetivo de nuestro estudio ha sido aumentar conocimientos y corregir errores, sobre el uso de métodos anticonceptivos y prevención de E.T.S. en una muestra de 30 alumnos de 3º de E.S.O. de un instituto de la provincia de Alicante. Pensamos que ante
Botella Santamaría, Miguel   +6 more
core   +2 more sources

Novel Tailoring of Ternary ZnS‐MXene‐TiO2 Nanocomposite Heterojunction and Its Tunable Electrochemical Properties With Enhanced Photocatalytic Degradation

open access: yesAdvanced Engineering Materials, EarlyView.
ZnS‐MXene‐TiO2 nanocomposite heterojunction for photocatalytic decomposition of this methylene blue dye (MB) greatly improves light absorption, charge separation, and active site area. Two‐dimensional MXene forms nanocomposites by easily combining them with 0D (quantum dots), 1D (tube and wire), 2D (plane and sheet), and 3D (particle and lamellar ...
Latiful Kabir   +7 more
wiley   +1 more source

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