Results 21 to 30 of about 42,011 (161)
Influencia de las condiciones de almacenamiento en la degradación de vitamina C
Publicaciones en Ciencias y Tecnología, 2020 En este trabajo se estudia la influencia de las condiciones de almacenamiento y la adición de azúcar en la degradación de la vitamina C presente en los jugos frescos de maracuyá, pitahaya, limón y grosella.
María Riera, Yunet Gómez Salcedo
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BJS Open, Volume 4, Issue 1, Page 101-108, February 2020., 2020 Percutaneous radiofrequency‐assisted liver partition with portal vein embolization in staged liver resection (PRALPPS), modIfied ALPPS with reduced surgical trauma on the first stage, was used in 11 patients with perihilar cholangiocarcinoma. PRALPPS did not differ from portal vein embolization (PVE) in terms of morbidity or mortality.
O. Melekhina +8 more
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Acta Scientiarum: Technology, 2012 The objective of this study was to evaluate the performance of constructed wetland systems (SACs) for treatment of swine wastewater (ARS) under different organic loads (TCOA), and obtain kinetic parameters for sizing of the SACs.
Fátima Resende Luiz Fia +4 more
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Removal of copper in cachaças using clays
Ciência e Agrotecnologia, 2014 Increased production and cachaça consumption has stimulated research regarding its quality. It is known that copper can be harmful to human health when it is in concentrated form in the beverage and is ingested in large amounts.
Felipe Cimino Duarte +5 more
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Evaluación del óxido mixto Ni/MgO-La2O3 como catalizador en la reacción de combustión de metano en presencia de NOx. [PDF]
Avances en Química, 2013 We have prepared mixed oxides of NiO/MgO-La2O3 by varying the proportions of the support through of the successive impregnation method. Different techniques were used to determine their physical-chemical properties, EDX analysis, X-ray diffraction, XRD,
Claudio Lugo +10 more
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Revista Politécnica, 2018 En este trabajo se prepararon carbones activados a partir de un carbón bituminoso, mediante procesos de activación física y química. La activación física con vapor de agua (H2O) se realizó a temperaturas de 700 y 800°C y la activación química utilizando ...
Lina Mercedes Daza Barranco +3 more
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Síntesis y caracterización de la zeolita Beta [PDF]
Avances en Química, 2012 Beta zeolite is normally obtained with Si/Al 5 and infinity ratios, using tetraethylammonium (TEA) as templante. Important parameters in the TEA-Beta synthesis are alkali cation concentration, the type of cation used, the concentration of hydroxide, and
Mahiceth Quintero +4 more
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Pesquisa Agropecuária Brasileira, 2008 O objetivo deste trabalho foi identificar entre os modelos Brody, Von Bertalanffy, Gompertz, France, Logístico, Logístico modificado e Logístico bicompartimental, aquele que apresenta maior qualidade de ajuste à curva de produção cumulativa de gases em ...
Renius Mello +3 more
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Estudio experimental de la alteración de la mojabilidad mediante el uso de un surfactante extraído del aceite del pino TOFA en el sistema crudo liviano/agua/SiO2 [PDF]
Avances en Química, 2012 It is known that much of the oil is trapped in reservoirs after use of conventional methods for oil extraction. However, several methods have been introduced to increase the recovery of this oil, one of them is through the alteration of the wettability.
Hildemaro Meléndez +5 more
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Pardeamiento de zumos clarificados de limón tratados a altas temperaturas
Scientia Agropecuaria, 2010 En este trabajo se presenta un estudio del efecto del tratamiento a altas temperaturas (70, 80, 90 y 95oC) sobre la evolución del color de zumos clarificados de limón de 10, 20, 35, 50 y 64.6oBrix.
Raquel Ibarz-Martínez +3 more
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