Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Alexis Guzmán"'
Autor:
Alexis Guzmán-Kantún, María Teresa María Teresa Santillán-Galicia, Ariel Wilbert Guzmán-Franco
Publikováno v:
AIA Avances en Investigación Agropecuaria, Vol 28, Iss 1 (2024)
Objetivo. Determinar el efecto acaricida de los productos comerciales a base de extractos vegetales como Organ Oil Plus®, Bio Capsi Xtra® y Bio Piretrin Plus®. Materiales y métodos. El trabajo se realizó en el Laboratorio Relación Ácaro-Hosped
Externí odkaz:
https://doaj.org/article/12c09867fb9243a2885c5d82e4ab575f
Autor:
Danny Guzmán, Augusto Figueroa, Alvaro Soliz, Alexis Guzmán, Claudio Aguilar, Felipe M. Galleguillos-Madrid, Carlos Portillo, Syed Ismat Shah
Publikováno v:
Materials, Vol 17, Iss 20, p 5115 (2024)
Ag-based electrical contact materials are essential in low-voltage devices such as relays, switches, circuit breakers, and contactors. Historically, Ag-CdO composites have been preferred due to their superior electrical and thermal conductivities, re
Externí odkaz:
https://doaj.org/article/36e30906fbec41f38a56dd8d2aed633c
Autor:
Alvaro Soliz, Felipe M. Galleguillos-Madrid, José Ángel Cobos-Murcia, Sebastian Angulo, Sebastian Salazar-Avalos, Bernabé Alonso-Fariñas, Alexis Guzmán
Publikováno v:
Applied Sciences, Vol 14, Iss 19, p 8825 (2024)
The presence of clays in copper minerals has a significant negative impact during their processing, leading to low recoveries during the flotation process. In saline environments, the presence of these clays promotes operational problems associated w
Externí odkaz:
https://doaj.org/article/477e95c5ea854891a13bcbd6d3dcc8db
Autor:
Danny Guzmán, Gabriel Dubray, Claudio Aguilar, Paula Rojas, Alexis Guzmán, Álvaro Soliz, Rossana Sepúlveda, Rodrigo Espinoza
Publikováno v:
Boletín de la Sociedad Española de Cerámica y Vidrio, Vol 60, Iss 2, Pp 109-118 (2021)
This paper describes a study exploring milling and subsequent heat treatments of pure IrO2 and Ta2O5 powders. Reactants were milled under Ar atmosphere in a SPEX 8000D mill, with structural, morphological, and compositional characterizations (during
Externí odkaz:
https://doaj.org/article/6586c22077e44dd4b42dc6213fa32cfa
Autor:
Danny Guzmán, Felipe González, Diego Muranda, Claudio Aguilar, Alexis Guzmán, Álvaro Soliz, Lorena Lozada, Iñigo Iturriza, Felipe Castro
Publikováno v:
Materials, Vol 16, Iss 10, p 3618 (2023)
This study investigated the synthesis of Ag-SnO2-ZnO by powder metallurgy methods and their subsequent electrical contact behavior. The pieces of Ag-SnO2-ZnO were prepared by ball milling and hot pressing. The arc erosion behavior of the material was
Externí odkaz:
https://doaj.org/article/91e9199c09584a6887714566f88fe45f
Publikováno v:
Metals, Vol 12, Iss 11, p 1924 (2022)
Currently, mining operations have increased the generation of tailings, which contain a variety of elements that can be valorized. In this research, tailing samples were leached with hydrochloric acid of concentrations greater than 3 M, considering t
Externí odkaz:
https://doaj.org/article/ab01cfc6393b46789ec51943fdf4227f
Autor:
Alexis Guzmán, Alberto Monsalve
Publikováno v:
Metals, Vol 12, Iss 4, p 655 (2022)
TRIP-assisted CMnSiAl steels with a fully martensitic initial microstructure have been studied in order to investigate the effect of partial substitution of Si by Al. The steel was fabricated by casting in a sand mold, hot forged, homogenizing, hot r
Externí odkaz:
https://doaj.org/article/8e80ef3f5b2744afb1918bbccc8bb2a6
Autor:
Giselle Araya, Norman Toro, Jonathan Castillo, Danny Guzmán, Alexis Guzmán, Pía Hernández, Ricardo I. Jeldres, Rossana Sepúlveda
Publikováno v:
Metals, Vol 10, Iss 5, p 627 (2020)
In this study, weak acid in the curing and leaching stages of copper ore was incorporated, and we analyzed its effect on the dissolution of copper and final impurities. The weak acid corresponds to a wastewater effluent from sulfuric acid plants prod
Externí odkaz:
https://doaj.org/article/68d7870436e1472ba920e19f39e73529
Autor:
David Alexis Guzmán Rendón
Publikováno v:
Ciencia Latina Revista Científica Multidisciplinar. 6:3085-3101
El presente trabajo tiene como objetivo evaluar la implementación del sistema de gestión de calidad basado en normas ISO 21001:2018 en el Colegio Santa María – Marianistas, 2021. La Metodología fue un enfoque cualitativo con el método estudio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f74b227da3de4f4c811899f59cfe704
https://doi.org/10.37811/cl_rcm.v6i4.2814
https://doi.org/10.37811/cl_rcm.v6i4.2814
Publikováno v:
Metals; Volume 12; Issue 11; Pages: 1924
Currently, mining operations have increased the generation of tailings, which contain a variety of elements that can be valorized. In this research, tailing samples were leached with hydrochloric acid of concentrations greater than 3 M, considering t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e05676ac0bf4e2f7263ad837b6cee3c