Showing 2,001 - 2,020 results of 4,993 for search '"miner"', query time: 0.16s Refine Results
  1. 2001
    Article of journal
    Black Sand-Based Photocatalyst for Hydrogen Production from EDTA Solutions Under UV–Vis Irradiation
    Published in 2020
    Repositorio Expeditio: repositorio UTadeo
    “..., MnO, Al2O3, etc.) and metals (V, Cr, Ni, Sr, Ce, etc.). Both this mineral, as well as a fraction...”
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  2. 2002
    Efecto de la suplementación de diferentes fuentes de zinc sobre el control de Eimeria spp., y el crecimiento de dos razas ovinas en el trópico de altura colombiano
    Por Torres Moncada, Rubén Darío
    Published in 2022
    Repositorio Universidad Nacional de Colombia

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  3. 2003
    Article of journal
    Características de las materias primas usadas por las empresas del sector cerámico del área metropolitana de Cúcuta (Colombia)
    Por Alvarez-Rozo, Diana Carolina; CORPAS IGLESIAS, FRANCISCO ANTONIO; Sanchez Molina, Jorge; Gelves Diaz, John Freddy
    Published in 2018
    Repositorio Repositorio Digital UFPS

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  4. 2004
    Trabajo de grado de pregrado
    Mejoramiento del proceso de beneficio de bauxita por vía seca mediante la técnica de estudio del trabajo en empresa de sector primario
    Por Rivera Peña, Juliana; Juvinao Franco, Jose Harley
    Published in 2017
    Repositorio RED: Repositorio Educativo Digital UAO

    “... presente, se ostenta un estudio de métodos y tiempos para el proceso de transformación del mineral BAUXITA...”
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  5. 2005
    Article of journal
    Desarrollo y evaluación de un inóculo de bacterias celulolíticas
    Por Viteri Flórez, Paola Andrea; Castillo Guerra, David Arturo; Viteri Rosero, Silvio Edgar
    Published in 2015
    Repositorio Repositorio Institucional UDCA

    “... test tubes containing liquid mineral medium and a strip of filter paper were inoculated. From...”
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  6. 2006
    Los conflictos alrededor del “cambio institucional” petrolero venezolano entre 1936 y 1943 [Primera parte]
    Por Maldonado-Veloza, Fabio Enrique
    Published in 2012
    Repositorio Repositorio Institucional USTA

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  7. 2007
    Article of journal
    Obtención de arcillas organofílicas
    Por Corredor Tarazona, Yolanda; Pinzón B., Jorge Alejo
    Published in 1994
    Repositorio Universidad Nacional de Colombia

    “..., mineralógico y químico. Los resultados obtenidos indican que este mineral es de tipo montmorilloníiico. Esta...”
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  8. 2008
    Article of journal
    Obtención de ácidos húmicos por oxidación de carbón con permanganato de potasio y su efecto sobre la disponibilidad de fósforo proveniente de roca fosfórica
    Por Quintero Q., Josué; Bonilla C., Luis Jorge
    Published in 1991
    Repositorio Universidad Nacional de Colombia

    “...Mediante oxidación de carbón mineral con permanganato de potasio se obtuvieron sustancias húmicas a...”
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  9. 2009
    Article of journal
    Caracterización de depósitos de suelo utilizando geo-radar
    Por Moreno V., Francisco Javier; Montes Vides, Luis Alfredo
    Published in 2003
    Repositorio Universidad Nacional de Colombia

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  10. 2010
    Article of journal
    Assessment of wax coatings in postharvest preservation of the pea (Pisum sativum L.) var. Santa Isabel
    Por Padilla T., Luis Gabriel; Zurita V., Jorge Umberto
    Published in 2015
    Repositorio Universidad Nacional de Colombia

    “... or disinfection), castor oil, and mineral oil) and compared them to treatments with the non-edible wax Cerabrix...”
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  11. 2011
    Concentración (“up grading”) de minerales de níquel a partir de lateritas, usando flotación espumante
    Por González Arias, Sindy Dayanis
    Published in 2016
    Repositorio Universidad Nacional de Colombia

    “... de xantato isopropilico de sodio para la flotación directa de mineral previamente sulfidizado. Se...”
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  12. 2012
    Article of journal
    Effect of fertilization on the contents of macronutrients and chlorine in tobacco leaves cv. flue-cured (Nicotiana tabacum L.) in two municipalities in Huila, Colombia
    Por Hoyos C., Verónica; Magnitskiy, Stanislav; Plaza T., Guido
    Published in 2015
    Repositorio Universidad Nacional de Colombia

    “... on the nutrient content of leaves. The aim of this study was to determine the contents of mineral nutrients...”
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  13. 2013
    Article of journal
    A new approach on the tectonometamorphic mechanisms associated with p–t paths of the barrovian-type silgará formation at the central santander massif, colombian andes
    Por Castellanos A., Óscar M.; Ríos R, Carlos A; Takasu, Akira
    Published in 2008
    Repositorio Universidad Nacional de Colombia

    “... to constrain the P-T history of this region in the eastern colombian cordillera. Mineral assemblages...”
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  14. 2014
    Article of journal
    Geology of the southern part of Sabanalarga Batholith. Implications for terrane theory in the west of Colombia
    Por Guiral Vega, Juan Sebastian; Rincón-Gamero, Jonathan José; Ordoñez-Carmona, Oswaldo
    Published in 2015
    Repositorio Universidad Nacional de Colombia

    “... generating large areas of mylonites closely related with hydrothermal alterations and mineralization...”
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  15. 2015
    Article of journal
    Multivariable analysis of 2,4-d herbicide photocatalytic degradation
    Por López Vásquez, Andrés F.; Colina Márquez, José Angel; Machuca Martínez, Fiderman
    Published in 2011
    Repositorio Universidad Nacional de Colombia

    “... mineralization expressed as the total organic carbon (TOC) removal percentage of the herbicide after four hours...”
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  16. 2016
    Article of journal
    Evolución mineralógica del cemento portland durante el proceso de hidratación
    Por Giraldo M., Manuel Alejandro; Tobón, Jorge Iván
    Published in 2006
    Repositorio Universidad Nacional de Colombia

    “... ocurre de manera diferente en cada mineral ya sea por la velocidad de reacción, o por los cambios...”
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  17. 2017
    Article of journal
    Ecophysiology of horticultural crops: an overview
    Por Restrepo-Díaz, Hermann; Melgar, Juan Carlos; Lombardini, Leonardo
    Published in 2010
    Repositorio Universidad Nacional de Colombia

    “... management, mineral nutrition, greenhouse design, etc.), optimizing photosynthetic carbon assimilation...”
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  18. 2018
    Article of journal
    Relationship between crop nutritional status, spectral measurements and Sentinel 2 images
    Por Martínez M., Luis Joel
    Published in 2017
    Repositorio Universidad Nacional de Colombia

    “... and natural savanna. Furthermore contents of mineral nutrients in leaves were determined. Several vegetation...”
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  19. 2019
    Article of journal
    Effects of land use on soil COsub2/sub flux in the Paramo de Guerrero, Colombia
    Por Peña-Quemba, Diego; Rubiano-Sanabria, Yolanda; Riveros-Iregui, Diego
    Published in 2016
    Repositorio Universidad Nacional de Colombia

    “... microorganisms, such as microbial respiration and organic matter mineralization. This study demonstrates...”
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  20. 2020
    Article of journal
    Petrographical study of ewekoro carbonate rocks, in ibese, south western nigeria
    Por Akinmosin, A.; Osinowo, O.O.
    Published in 2010
    Repositorio Universidad Nacional de Colombia

    “... ranges from fine to coarse grained with aragonite and calcite as the most common minerals. This work...”
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