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Mostrando ítems 91-100 de 220
Taphonomy of the vertebrate fossils (Extinct Megafauna) found in Chuí Creek embankment and Shoreline, Rio Grande do Sul, BrazilTafonomia de Fósseis de Vertebrados (Megafauna Extinta) Encontrados nas Barrancas do Arroio Chuí e Linha de Costa, Rio Grande do Sul, Brasil
(Instituto de Geociências /Universidade Federal do Rio Grande do Sul, 2001)
Performance of Phragmites Australis and Cyperus Papyrus in the treatment of municipal wastewater by vertical flow subsurface constructed wetlands
(2019)
The use of constructed wetlands to treat municipal wastewater reduces energy consumption and therefore economic costs, as well as reduces environmental pollution. The purpose of this study was to compare the purification ...
Limnogeology in Brazil's "forgotten wilderness": a synthesis from the large floodplain lakes of the Pantanal
(Springer, 2011-08-01)
Sediment records from floodplain lakes have a large and commonly untapped potential for inferring wetland response to global change. The Brazilian Pantanal is a vast, seasonally inundated savanna floodplain system controlled ...
Diseño y manufactura de un bloque motor mono cilíndrico para una motocicleta de 150C.C. con una aleación de aluminio 7075.
(Escuela Superior Politécnica de Chimborazo, 2019-10-31)
Design the engine block by using the CAD software (Computer Aided Design) to manufacture the 150 C.C. engine block, considering the manufacturer's technical specifications. By using a 7075 aluminum alloy, because it has ...
Obtención de compuesto Humus en unidad Piloto a partir del tratamiento con lombrices en Lodos dirigidos de la Planta de Tratamiento Villa Club Cosmos
(Universidad de Guayaquil, Facultad de Ingeniería Química, 2017-03)
El lodo residual de una planta de tratamiento de aguas residuales domésticas contiene básicamente sólidos, cuya base es la misma que la del polvo o arena, mezclado con sólidos inorgánicos; siendo estos silicatos. Como ...
Optimización del pistón de un motor marca Qingqi a gasolina cuatro tiempos monocilíndrico 150 cc a través de un estudio CAE y construcción del mismo aplicando las herramientas CAD/CAM
(Escuela Superior Politécnica de Chimborazo, 2021-01-22)
This technological proposal was focused on the study of the impact of the geometry of the Qingqi 150cc piston; a gasoline four-stroke of a single cylinder engine, in the consumption of fuel and emission of polluting gases ...
The role of Sarcocornia perennis and tidal flooding on sediment biogeochemistry in a South American wetland
(Taylor & Francis, 2013-04-22)
The roles of Sarcocornia perennis and tidal flooding on sediment biogeochemistry were evaluated within a wetland in the Bahı´a Blanca estuary. pH and Eh were measured in sediments while particulate organic carbon (POC) and ...
Diseño, construcción y evaluación de un dispositivo escala laboratorio para el tratamiento de agua utilizando fibras de algodón funcionalizadas con quitosano
(Universidad de los AndesIngeniería AmbientalIngeniería QuímicaFacultad de IngenieríaDepartamento de Ingeniería Civil y AmbientalDepartamento de Ingeniería Química, 2020)
Este trabajo tiene como propósito el planteamiento del diseño y la construcción de un dispositivo para la remoción de turbiedad, iones y agentes microbianos del agua. Lo anterior, a través de un lecho filtrante compuesto ...
Metalogénesis en depósitos tipo placer asociados genéticamente con áreas ígneo-metamórficas en el Bajo Cauca : caso de estudio Mina Lucky (Antioquia – Colombia)
(Universidad EAFITGeologíaEscuela de Ciencias Aplicadas e Ingeniería. Departamento de Ciencias de la TierraMedellín, 2023)
Historically, mineral extraction in Colombia has taken place on a small scale and in an
artisanal manner, serving as a means of livelihood for some communities in the country. Gold
has been considered an economic driver ...
Compressive strength study of cement mortars lightened with foamed HDPE nanocomposites
(2015)
In this paper partial or total replacement of natural aggregates by recycled polymeric foams was used to lighten cement mortars. The influence of foamed material in mortar compressive strength was studied. Siliceous sand ...