Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Nicolás Rojas-Arias"'
Publikováno v:
Tecnología y ciencias del agua, Vol 14, Iss 1, Pp 391-431 (2023)
Las explotaciones mineras asociadas con la extracción de carbón y esmeraldas en el departamento de Boyacá, Colombia, contribuyen en la generación de drenajes ácidos de mina (DAM), los cuales afectan los ecosistemas cercanos a la actividad minera
Externí odkaz:
https://doaj.org/article/553d1f2d9d2f4278988603dd22382fa9
Publikováno v:
Tecnología y ciencias del agua, Vol 12, Iss 5, Pp 350-376 (2021)
El oxígeno disuelto (OD) es un parámetro fundamental en los cuerpos de agua que puede suministrarse por medio de agitadores mecánicos de eje horizontal. Sin embargo, la geometría de las aspas y las condiciones operativas pueden influir sobre los
Externí odkaz:
https://doaj.org/article/93faf4fda799458fa07bd7be394a0e70
Publikováno v:
Journal of Applied Research and Technology. 20:24-36
Molecular sieves of MCM-41 impregnated with MgO, MoO3, and Mo2C synthesized using a wet impregnation method. The compounds developed herein, were characterized by means of XRD, SEM-EDS and FT-IR techniques. The production capacity of acetaldehyde fro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c86f80041a6b7eb28522093655037c93
https://doi.org/10.22201/icat.24486736e.2022.20.1.1482
https://doi.org/10.22201/icat.24486736e.2022.20.1.1482
Autor:
Nicolás Rojas Arias, Lais Mujica-Roncery, C. A. Senna, B. S. Archanjo, Yeny Angélica Bautista Vargas, Angie Katerine Jimenez Miguez, Martin Emilio Mendoza-Oliveros
Publikováno v:
Journal of Applied Research and Technology. 20:17-23
The effect of speed and time of stirring for AA6063 matrix manufactured by Electric Induction Furnace and reinforced 0.75wt.% and 1.5wt.% of Al2O3 nanoparticles is studied. The Specimens produced were subjected to tensile, microhardness, and tribolog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::afa9008ad2c1c1c2714cd0525f1370b5
https://doi.org/10.22201/icat.24486736e.2022.20.1.1642
https://doi.org/10.22201/icat.24486736e.2022.20.1.1642
Publikováno v:
Journal of Applied Research and Technology. 20:84-91
In this work, the effect of radon gas removal was studied for thermal water samples subjected to aeration and dissolved oxygen (DO) transfer processes. The prototype used in this work consisted of the application of a diffusion aeration system, usual
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07c9cb20808c075d7ce24286d3406e54
https://doi.org/10.22201/icat.24486736e.2022.20.1.1641
https://doi.org/10.22201/icat.24486736e.2022.20.1.1641
Publikováno v:
Journal of Applied Research and Technology. 19:540-547
En este trabajo, se estudió y comparó dos procesos de biorremediación de lodos generados en estaciones de servicio y estaciones de venta de combustibles de la ciudad de Tunja-Boyacá, Colombia, los cuales están contaminados con hidrocarburos tota
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5079eea8d6e25266d6653403214e40d4
https://doi.org/10.22201/icat.24486736e.2021.19.5.1589
https://doi.org/10.22201/icat.24486736e.2021.19.5.1589
Autor:
Cesar René Blanco-Zuñiga, Zully Ximena Chacón-Rojas, Juan Sebastian Villarraga-Castillo, Heidy Elizabeth Guevara-Suarez, Yesica Nataly Casteblanco-Castro, Nicolás Rojas-Arias
Publikováno v:
Ingenieria y Universidad. 26
Coal mining represents one of the primary economic incomes in the department of Boyacá, Colombia. However, the acid mine drainage (AMD) generated has a tremendous environmental impact in the area due to the presence of sulfate ions (SO4-2), heavy me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03a6432447ee10c01c0c81bd9a6d9de1
https://doi.org/10.11144/javeriana.iued26.tadc
https://doi.org/10.11144/javeriana.iued26.tadc
Autor:
W.T. Sáchica-Tenjo, V. R. Barrales-Guadarrama, A.J.D. Vargas-Bolívar, Nicolás Rojas Arias, Cesar René Blanco Zúñiga
Publikováno v:
Revista ION. 34
The reduction of dissolved oxygen (DO) in water is associated with the effect of climate change. The lack of oxygen in water bodies directly affects the biological species present in different shallow water bodies such as swamps and wetlands, as well
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::688d5eb232c5ae15ad18dfe9dcb95d8c
https://doi.org/10.18273/revion.v34n2-2021004
https://doi.org/10.18273/revion.v34n2-2021004
Autor:
Cesar René Blanco Zúñiga, Nicolás Rojas Arias, A.J.D. Vargas-Bolívar, W.T. Sáchica-Tenjo, V. R. Barrales-Guadarrama, M. E. Mendoza-Oliveros
Publikováno v:
Universidad Autónoma Metropolitana
UAM
Redalyc-UAM
Revista ION (Colombia) Num.2 Vol.34
UAM
Redalyc-UAM
Revista ION (Colombia) Num.2 Vol.34
"The reduction of dissolved oxygen (DO) in water is associated with the effect of climate change. The lack of oxygen in water bodies directly affects the biological species present in different shallow wáter bodies such as swamps and wetlands, as we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3056::a2a094691e7f7b6924b75b3edc851014
https://www.redalyc.org/articulo.oa?id=342070411004
https://www.redalyc.org/articulo.oa?id=342070411004
Autor:
Cesar René Blanco Zuñiga, Nicolas Rojas-Arias, Ludy Yiseth Peña Pardo, Martín Emilio Mendoza Oliveros, Segundo Agustín Martínez Ovalle
Publikováno v:
Ingeniería, Vol 26, Iss 1, Pp 5-14 (2020)
Context: The lack of dissolved oxygen (DO) in water bodies has become a serious problem for several ecosystems due to drastic changes in their climatic, biological, and physical conditions. The presence of microorganisms, organic matter, and clays, w
Externí odkaz:
https://doaj.org/article/f79e7a12722a46c79f49068ff412d7de