Encontrados 6 documentos, a visualizar página 1 de 1
On the improvement of localization accuracy with nonindividualized HRTF-based s...
Mendonça, Catarina; Campos, Guilherme; Dias, Paulo; Vieira, José; Ferreira, João P.; Santos, Jorge A.Auralization is a powerful tool to increase the realism and sense of immersion in Virtual Reality environments. The Head Related Transfer Function (HRTF) filters commonly used for auralization are non-individualized, as obtaining individualized HRTFs poses very serious practical difficulties. It is therefore extremely important to understand to what extent this hinders sound perception. In this paper, we add...
Biological treatment of olive mill wastewater by non-conventional yeasts
Gonçalves, Cristiana; Lopes, Marlene; Ferreira, João P.; Belo, IsabelThe ability of lipolytic yeasts to grow on olive mill wastewater (OMW)-based medium and to produce high-value compounds while degrading this waste, was tested. OMW collected from three-phase olive mills from the North region of Portugal were characterized and used. OMW with COD ranging from 100 g L−1 to 200 g L−1 were supplemented with yeast extract and ammonium chloride. Studies of OMW consumption were carried...
Characterization of phenolic compounds of OMW : toxicity and degradability by y...
Gonçalves, Cristiana; Ferreira, João P.; Lopes, Marlene; Falcão, Soraia; Peres, A. M.; Cardoso, Susana M.; Belo, IsabelThe characterization of Olive Mill Wastewaters (OMW), focusing the phenolic compounds, is one of the aims of the present work. As a first approach to characterize the phenolic compounds of OMW, the extraction methods used were: a liquid-liquid extraction by acidified ethyl acetate and a solid-liquid extraction with acidified methanol. The analysis of these extracts by reversed phase liquid chromatography confir...
Characterization of phenolic compounds of OMW: toxicity and degradability by ye...
Gonçalves, Cristiana; Ferreira, João P.; Lopes, Marlene; Falcão, Soraia; Peres, António M.; Cardoso, Susana M.; Belo, IsabelThe characterization of Olive Mill Wastewaters (OMW), focusing the phenolic compounds, is one of the aims of the present work. As a first approach to characterize the phenolic compounds of OMW, the extraction methods used were: a liquid-liquid extraction by acidified ethyl acetate and a solid-liquid extraction with acidified methanol. The analysis of these extracts by reversed phase liquid chromatography confir...
Characterization of phenolic compounds of OMW: toxicity and degrability by yeasts
Gonçalves, Cristiana; Ferreira, João P.; Lopes, Marlene; Falcão, Soraia; Peres, António M.; Cardoso, Susana M.; Belo, IsabelThe olive oil extraction, performed by the 3-phases process, results on a large amount of an effluent, usually known as Olive Mill Wastewater (OMW). It is mainly produced in the Mediterranean area, with the exception of Spain that is one of the major producers but mostly use the 2-phases process. OMW represents a major environmental problem due to its high organic content, being characterized by a strong acidic...
High resolution forecasts of wind in rough orography and in coastal conditions
Miranda, Pedro; Costa, P.; Antunes, C.; Ferreira, João P.; Valente, A.; Rodrigues, Álvaro; Estanqueiro, AnaThe increase of the share of wind energy in total electrical power requires the development of reliable forecasts of wind power at different time scales, from minutes to days, on a regional and national basis. That development is multidisciplinary, involving meteorological and engineering components. In the present stage, though, it is thought that for time scales beyond 3 hours, the largest improvements are ...
| Financiadores do RCAAP | |||||||
|
|
|
|
|
|
||