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Effect of the fluorination of DLC film on the corrosion protection of aluminum alloy (AA 5052)
(Elsevier B.V. Sa, 2010-06-25)
It is presented a study conducted on the physical and electrochemical properties of fluorinated a-C:H films deposited onto a commercial aluminum alloy (AA 5052). The coatings were deposited from mixtures of 91% of acetylene ...
Bioacumulação de cobre por três espécies de macrófitas aquáticas : implicações para manejo de efluentes
(Universidade Federal de Mato GrossoBrasilInstituto de Ciências Naturais, Humanas e Sociais (ICNHS) – SinopUFMT CUS - SinopPrograma de Pós-Graduação em Ciências Ambientais, 2015-02-23)
The pollution caused by industrialization and population growth has decreased the quality of
water for human consumption. To contribute to improving the quality of water for domestic
and industrial effluents, has been ...
Avaliação do comportamento das elementos Ni, Rb e Se por espectrometria de absorção atômica com forno tubular na chama de aeressol térmico.
(Universidade Federal de São CarlosBRUFSCarPrograma de Pós-Graduação em Química - PPGQ, 2006-06-30)
In the present work the behavior of the elements Ni, Rb, and Se was evaluated by thermospray flame furnace atomic absorption spectrometry (TS-FF-AAS). The arrangement of the TS-FF-AAS system consisted of a Ni tube located ...
Desenvolvimento de filmes finos de organosilicone depositados a plasma para fotoproteção do polipropileno
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência dos Materiais - PPGCM-SoCâmpus Sorocaba, 2019-02-26)
Polypropylene (PP) is a polymer used industrially on a large scale. However, the PP has limitations in external use due to its sensitivity to photodegradation, when exposed to the elements. This limits the options of use ...
Relación de la fijación de nitrógeno y la producción de auxinas en cepas de gluconacetobacter diazotrophicus procedentes de diferentes cultivos
(Universidad Nacional de Colombia, 2009)
Relationships between nitrogen fixation and auxins production in Gluconacetobacter diazotrophicus strains from different crops ResumenSe determinó la capacidad de fijar nitrógeno mediante la actividad reductora de acetileno ...
Elaboración y caracterización de carbón activado a partir de residuos agroindustriales para reducir fluoruros en aguas de consumo
(Escuela Superior Politécnica de Chimborazo, 2020-07-14)
Samples of activated carbon were prepared and characterized by the agroindustrial lignocellulosic residue of yuyo de papa, to reduce the concentration of fluorides in the drinking water of the communities Pungalapamba and ...
Gestión de riesgos físicos, mecánicos y ergonómicos en los talleres de mantenimiento de vehículos y maquinaria pesada del GAD Municipal del Tena.
(Escuela Superior Politécnica de Chimborazo, 2017-04-18)
The study in the workshops of automotive and heavy machinery maintenance of Municipality Decentralized Autonomous Government of Tena started with the information gathering of the current situation of the positions referring ...
Análisis de los riesgos mecánicos en el mantenimiento y reparación de contenedores refrigerados en la Empresa Climacont.
(Universidad de Guayaquil. Facultad de Ingeniería Industrial. Carrera de Ingeniería Industrial., 2021-04-16)
El presente trabajo de investigación tiene como objetivo analizar los riesgos mecánicos en la empresa Climacont en el área de mantenimiento y reparación de contenedores refrigerados, se utilizó el ...
Denitrification in a Soil under Wheat Crop in the Humid Pampas of Argentina
(Scientific Research, 2014-09)
The need to accurately estimate gaseous nitrogen losses from soils is required to have a better understanding of the processes involved as well as soil and environmental conditions, and management practices contributing ...
Biological nitrogen fixation in a post-volcanic chronosequence from south-central Chile
(Springer, 2017)
Biological nitrogen fixation is a key ecosystem function incorporating new nitrogen (N) during primary successions. Increasing evidence from tropical and northern temperate forests shows that phosphorus (P) and molybdenum ...