Zobrazeno 1 - 4
of 4
pro vyhledávání: '"JUAN CAMILO RESTREPO GUTIÉRREZ"'
Publikováno v:
Dyna, Vol 76, Iss 157, Pp 225-231 (2009)
En el presente trabajo se evalúa el desempeño mecánico del cemento blanco coloreado con pigmento azul ultramar y se explica su desempeño a partir de las modificaciones mineralógicas acaecidas por la sustitución de cemento por pigmento en porcen
Externí odkaz:
https://doaj.org/article/5e0ceae184384583bb5a7b7a730a731a
Publikováno v:
Dyna, Vol 73, Iss 150, Pp 131-141 (2006)
Se presenta una amplia revisión de los efectos de la adición de metacaolín (MK) en la fabricación y utilización del cemento Pórtland, considerando el MK como un producto que tiene efectos puzolánicos. Para ello se define previamente el conce
Externí odkaz:
https://doaj.org/article/620f9094263a45c189ad11d3a52fd793
Autor:
Alex Arbey Lopera Sepúlveda, Oscar Jaime Restrepo Baena, Edgar Andrés Chavarriaga Miranda, Juan Fernando Montoya Carvajal, Juan Camilo Restrepo Gutiérrez
Publikováno v:
Characterization of Minerals, Metals, and Materials 2016 ISBN: 9783319486239
Characterization of Minerals, Metals, and Materials 2016
Characterization of Minerals, Metals, and Materials 2016
The present study reports the effect of the fuels: glycine, urea, and citric acid on the optical properties of ceramic pigment Zn0.5Cu0.5Cr2O4, synthesized by solution combustion. The powders were characterized by X-ray diffraction, which showed the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d83847cc9d57e66dbe44944baf190cd0
https://doi.org/10.1007/978-3-319-48210-1_91
https://doi.org/10.1007/978-3-319-48210-1_91
Publikováno v:
Journal of Power Sources. 116:128-140
Mild hybrid vehicles with 42 V electrical systems require advanced batteries with low cost, very high reliability and peak power performance. Valve-regulated lead-acid (VRLA) batteries could provide better performance/cost ratio than any other electr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::137748fb3108c4f49209dd874a6d1755
https://doi.org/10.1016/s0378-7753(02)00716-4
https://doi.org/10.1016/s0378-7753(02)00716-4