References of "Pirard, Eric"
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See detailSegregation of the bulk blend fertilizers
Miserque, Olivier; Pirard, Eric ULiege

in Chemometrics and Intelligent Laboratory Systems (2004), 74(1), 215-224

Bulk blend fertilizers are a mixture of different kinds of fertilizers in order to obtain a predicted N-P-K chemical composition. Although this production method has some advantages, segregation appears ... [more ▼]

Bulk blend fertilizers are a mixture of different kinds of fertilizers in order to obtain a predicted N-P-K chemical composition. Although this production method has some advantages, segregation appears at different stages, from the production to the final spreading on the field. An experiment has been implemented to predict and quantify the influence of some physical properties on the occurrence of segregation. The principle was to blend two fertilizers having identical physical properties except for one, such as size, shape or density and to measure the segregation of the blend following various operations, such as filling or emptying a container. Results show that the spread of the fragment size distribution has a big influence on the segregation of the generated heap. In order to reduce this phenomenon, the granulometric spread index (GSI) [(d(84)-d(16))/2d(50)] must be smaller than 10. Other properties don't seem to have an influence. The granulometric segregation can lead to a chemical heterogeneity. The absolute sum of the difference between d(16) and d(84) must be limited around 0.5 mm. Above this value, the chemical segregation begins to be excessive. It seems also that if there is a limited difference in size for the components, the chemical segregation is amplified if the density of the fertilizer with the biggest particles is lower. It is not the case for the difference in shape. (C) 2004 Elsevier B.V. All rights reserved. [less ▲]

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See detailCartografía de Minerales Evaporiticos Utilizando Imágenes Satelitales de los Salares de Sud Lipez (Bolivia)
Caceres, Fernando; Ali-Ammar, Hamid; Pirard, Eric ULiege

in XVI Congreso Geologico Boliviano (2004)

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See detailMonitoring color alteration of ornamental flagstones using digital image analysis.
Lebrun, Vincent; Toussaint, Caroline; Pirard, Eric ULiege

in Prykryl, R. (Ed.) Dimension Stone (2004)

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See detailCartografia Preliminar de los minerales evaporiticos del salar de Coipasa utilisando imagenes Aster
Caceres, Fernando; Gutierrez, Jorge; Pirard, Eric ULiege

in Conferencia Nacional de Valorizacion de los Salares (2004)

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See detailAnalisis Mineralogico Cuantitativo
Pirard, Eric ULiege

in XVI Congreso Geologico Boliviano (2004)

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See detailMultiradial Image Analysis in Optical Reflected Light Microscopy
Pirard, Eric ULiege; Lebichot, Sophie

in XIIIth European Congress for Microscopy (2004)

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See detailQuality control of particulate materials through image analysis.
Pirard, Eric ULiege

in Optics and Industrial Vision (2004)

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See detailTélédétection et télégestion des informations géologiques : de nouvelles technologies au service du développement.
Pirard, Eric ULiege; Caceres, Fernando

in Bulletin des Séances de l’Académie Royale des Sciences d’Outre-Mer = Mededelingen der Zittingen van de Koninklijke Academie voor Overzeese Wetenschappen (2004), 50(3), 321-348

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See detailDirect estimation of sieve size distributions from 2-D image analysis of sand particles
Pirard, Eric ULiege; Vergara, Nicolas; Chapeau, Vincent

in Proceedings PARTEC 2004 (2004)

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See detailImage Analysis of Iron Oxides under the Optical Microscope.
Pirard, Eric ULiege; Lebichot, Sophie

in Tassinari, L. M.; Pecchio, M.; Andrade, F. R. (Eds.) et al Applied Mineralogy: Developments in Science and Technology (2004)

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See detailImage Measurements
Pirard, Eric ULiege

in Francus, P. (Ed.) Image analysis, sediments and paleoenvironments (2004)

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See detailTesting for sources of errors in quantitative image analysis
Francus, Pierre; Pirard, Eric ULiege

in Francus, P. (Ed.) Image analysis, sediments and paleoenvironments (2004)

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See detailTeledetección Geológica de la Región de San Pablo de Lipez - Bolivia
Caceres, Fernando; Pirard, Eric ULiege

in XVI Congreso Geologico Boliviano (2004)

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See detailMineral mapping in salt lakes from Sud Lipez (Bolivia) using Aster images
Caceres, Fernando; Ali-Ammar, Hamid; Pirard, Eric ULiege

in Geological Remote Sensing Group Newsletter (2004), (38), 15-19

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See detailMultivariate discrimination of sands using elongation and abrasivity indices
Pirard, Eric ULiege; Vergara, Nicolas

in Proceedings PARTEC (9th European Symposium on Particle Characterization) (2004)

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See detailMarble classification using scale spaces
Dislaire, Godefroid; Pirard, Eric ULiege; Vanrell, Maria

in Prykryl, R. (Ed.) Dimension Stone (2004)

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See detailThe cutting edge of superabrasives quality control
Pirard, Eric ULiege

in Industrial Diamond Review (2003), 03(3), 49-50

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See detailGranulometría y Morfometría de Materiales Granulares por Metódos Ópticos
Pirard, Eric ULiege

in Avila, Margot; Lucion, Christian (Eds.) Mineria, Metalurgia y Medio Ambiente (2003)

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See detailAnalisis Mineralogico Cuantitativo
Pirard, Eric ULiege

in Avila, Margot; Lucion, Christian (Eds.) Mineria, Metalurgia y Medio Ambiente (2003)

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See detailImage analysis of PM powders adds a new dimension
Pirard, Eric ULiege

in Metal Powder Report (2003)

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