Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados ArchiMer (3) Autor Beiso, I (1) Bourrin, F (1) Doglioli, Andrea (1) Durrieu De Madron, Xavier (1) Gangloff, A (1) Jourdin, F (1) Many, G (1) Mikkelsen, Oa (1) Renosh, Pr (1) Rinaldi, F (1) Vassallo, P (1) Verney, Romaric (1) Mais... Palavra-chave Settling velocity (3) Fractal dimension (2) Aggregation (1) Agrégation (1) Diffraction laser (1) Dimension fractale (1) Feed pellets (1) Floating time (1) Flocculation (1) Laser diffraction (1) Mediterranean (1) Particle size spectra (1) ROFI (1) Rhone (1) Spectre de taille des particules (1) Vitesse de sédimentation (1) Waste dispersion (1) Water adsorption (1) Mais... Tipo do documento Text (3) Ano 2019 (1) 2006 (1) 2002 (1) País France (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Determination of physical behaviour of feed pellets in Mediterranean water ArchiMer Vassallo, P; Doglioli, Andrea; Rinaldi, F; Beiso, I. Settled uneaten feed causes the most intense impact under sea cages, and settling velocity of the feed pellets represents a key parameter for waste dispersion models. Even if some data about physical properties of feed pellets have been published in the framework of salmonid rearing, there is a complete lack of information related to the Mediterranean Sea, as regards typical values of temperature, salinity and feed composition for Gilthead Sea Bream (Sparus aurata L.) and Sea Bass (Dicentrarchus labrax L.). In this study we try to fill this lack, determining dimensions, water adsorption properties, floating times and settling velocities of a typical growing sequence of pellets for the species mentioned above, under defined laboratory conditions reproducing... Tipo: Text Palavras-chave: Waste dispersion; Mediterranean; Feed pellets; Water adsorption; Floating time; Settling velocity. Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-4968.pdf Examples of spatial and temporal variations of some fine-grained suspended particle characteristics in two Danish coastal water bodies ArchiMer Mikkelsen, Oa. In June and September of 1999, a LISST-100 in situ laser diffraction particle sizer was used to analyse the temporal and spatial variation of the beam attenuation coefficient, the in situ median particle (aggregate) diameter and the median volume concentration of suspended matter in two Danish coastal water bodies. One of the study sites was generally exposed to wind, while the other was quite sheltered. Measurements of the mass concentration of total suspended matter and chl a were made simultaneously. The in situ median effective density, settling velocity and vertical flux of the suspended matter are computed. Results demonstrate that in September, the in situ median aggregate diameter, settling velocity and vertical flux was smaller (by a factor of up... Tipo: Text Palavras-chave: Agrégation; Diffraction laser; Spectre de taille des particules; Dimension fractale; Vitesse de sédimentation; Aggregation; Laser diffraction; Particle size spectra; Fractal dimension; Settling velocity. Ano: 2002 URL: http://archimer.ifremer.fr/doc/00322/43328/42899.pdf Geometry, fractal dimension and settling velocity of flocs during flooding conditions in the Rhône ROFI ArchiMer Many, G; Durrieu De Madron, Xavier; Verney, Romaric; Bourrin, F; Renosh, Pr; Jourdin, F; Gangloff, A. Regions Of Freshwater Influence (ROFI) are of particular interest in a source-to-sink approach in terms of sediment advection, settling, and deposition in the coastal zone. An experiment was carried out in the ROFI of the Rhône River in February 2016 to describe the properties of suspended particulate matter (SPM) during a flood event. A digital holographic camera (LISST-HOLO, 20–2000 μm) was used to estimate the variability of fine sediment floc properties (size, nature and shape) formed in the Rhône mouth. An automatic image toolbox was developed to classify the different constituents of the SPM (as diatoms, bubbles and flocs) and to describe the diversity of floc shapes existing in the material in suspension. We estimated the fractal dimension (DF3D),... Tipo: Text Palavras-chave: Flocculation; Fractal dimension; Settling velocity; ROFI; Rhone. Ano: 2019 URL: https://archimer.ifremer.fr/doc/00478/58952/61540.pdf Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco