Browsing
     by title


0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

or enter first few letters:   
OK
Full Text
Peer Reviewed
See detailMacroporous poly(ionic liquid)s and poly(acrylamide)s monoliths from CO2-in-water emulsion templates stabilized by sugar-based surfactants
Boyère, Cédric ULg; Favrelle, Audrey; Léonard, Alexandre ULg et al

in Journal of Materials Chemistry A (2013), 1(29), 8479-8487

Highly interconnected poly(acrylamide) (PAM) and poly(vinylimidazolium) (PVIm) porous monoliths were templated by carbon 10 dioxide-in-water (CO2/W) high internal phase emulsions (HIPEs), a toxic-solvent ... [more ▼]

Highly interconnected poly(acrylamide) (PAM) and poly(vinylimidazolium) (PVIm) porous monoliths were templated by carbon 10 dioxide-in-water (CO2/W) high internal phase emulsions (HIPEs), a toxic-solvent free process. A range of sugar-based fluorinated surfactants prepared by chemoenzymatic synthesis were used as emulsifiers. Both the concentration and the structure of the surfactants, especially the length of their CO2-philic part and of their spacer between the sugar head and the tail, were found to strongly affect the cellular structure and morphology of the PAM polyHIPEs, i.e. the size of pores and cells. A mannose derivative bearing a chain ranging from 6 to 10 perfluorinated carbons and a long spacer emerged as the best stabilizer, leading to a porous monolith with average pores and 15 cells sizes (about 2.6 1m and 5-10 1m, respectively) among the lowest reported for polyHIPEs produced from CO2/W emulsions. The same template then served for the preparation of the first macroporous poly(ionic liquid)s (PILs) polyHIPE by using 1-vinyl-3- ethylimidazolium bromide as monomer. Shrinkage of the final material was prevented by adjusting the divinylimidazolium crosslinker content. The resulting low density polyHIPE exhibits small spherical cells (~5 1m) connected by numerous small pores (~2 1m), confirming that the CO2/W HIPE templating methodology based on fluorinated glycosurfactants is a technique of choice for the 20 preparation of macroporous PILs. [less ▲]

Detailed reference viewed: 40 (15 ULg)
Full Text
See detailMacroporous polyhipes from CO2-in-water emulsion templates stabilized by new sugar-based surfactants
Boyère, Cédric ULg; Favrelle, Audrey; Léonard, Alexandre F. et al

Poster (2013, May 16)

Detailed reference viewed: 12 (3 ULg)
See detailMacroprolactinemia in a patient with prolactinoma : A condition that may occur
Burlacu, M. C.; Valdes Socin, Hernan Gonzalo ULg; Betea, Daniela ULg et al

in 23ème Congrès de la Société Française d'Endocrinologie - Abstract book (2006)

Detailed reference viewed: 6 (0 ULg)
See detailMacros Minitab pour l'estimation de paramètres à partir de résultats d'enquêtes
Palm, Rodolphe ULg; Clissen, Valérie

Software (2003)

Detailed reference viewed: 8 (2 ULg)
Full Text
See detailMacros Minitab pour la régression linéaire
Palm, Rodolphe ULg

Software (2002)

Detailed reference viewed: 8 (0 ULg)
Full Text
See detailMacros Minitab pour le choix d'une transformation pour la normalisation de variables
Palm, Rodolphe ULg; Brostaux, Yves ULg; Claustriaux, Jean-Jacques ULg

in Notes de Statistique et d'Informatique (2011), (3),

Macros are proposed to Minitab users for transforming data to normality. The following transformations are examined : log transformation, Box et Cox transformation with lambda equal to -2, -1, -0,5, 0,5 ... [more ▼]

Macros are proposed to Minitab users for transforming data to normality. The following transformations are examined : log transformation, Box et Cox transformation with lambda equal to -2, -1, -0,5, 0,5 and 2, Box et Cox transformation with maximum likelihood estimation of lambda and transformations using the Johnson system of distributions. Two examples are given. [less ▲]

Detailed reference viewed: 55 (7 ULg)
Full Text
Peer Reviewed
See detailMacroscale ecohydrodynamic modeling on the Northwest European Continental Shelf
Delhez, Eric ULg

in Journal of Marine Systems (1998), 16(1-2), 171-190

A 3D coupled hydrodynamic-biological model is applied to the simulation of the biological processes on the Northwest European Continental Shelf. The model operates in the macroscale spectral window (time ... [more ▼]

A 3D coupled hydrodynamic-biological model is applied to the simulation of the biological processes on the Northwest European Continental Shelf. The model operates in the macroscale spectral window (time scales of a month or a season) without explicit description of the higher frequency processes but with an adequate modeling of their influence on larger time scales. The hydrodynamic sub-model is 3D, baroclinic and includes a refined turbulence closure. The non-linear interactions of mesoscale fluctuations are described by means of the generalized mesoscale Reynolds stresses and the Stokes drift transport velocity field. The biological sub-model describes the nitrogen and carbon cycles through the food web with 17 state variables representing 9 compartments: inorganic nutrients, small phytoplankton, large phytoplankton, dissolved organic matter, pelagic bacteria, heterotrophic flagellates, pelagic detritus, zooplankton and benthic organic detritus. The simulation emphasizes the strong influence of the local depth and of the stability of the water column on the whole annual cycle of phytoplankton. In well-mixed shallow areas, the chlorophyll concentration increases in early spring and the primary production occurs steadily until October. In deeper areas, the spring bloom is much sharper and appears later, after the set up of the seasonal stratification. The main part of the primary production happens during the bloom period. The macroscale approach provides results that are comparable with observations and results of other more classical models describing explicitly the higher frequency processes. The current method allows, however, a more direct insight into the dynamics of the system and into the interactions between the hydrodynamics and the biology. Also, it greatly reduces the CPU requirements and is therefore particularly suited for repeated or long term simulations. (C) 1998 Elsevier Science B.V. All rights reserved. [less ▲]

Detailed reference viewed: 36 (11 ULg)
Peer Reviewed
See detailMacroseismic map and animal behavior
François, Michelle; Pissart, Albert ULg; Donnay, Jean-Paul ULg

in Bulletin of the INQUA Neotectonics Commission (1986), 9

Detailed reference viewed: 24 (1 ULg)
Full Text
Peer Reviewed
See detailLe macrozooplancton gélatineux, une source considérable d'enrichissement en matière organique des substrats benthiques infralittoraux.
Dauby, Patrick ULg

in Rapports et Procès Verbaux des Réunions - Commission Internationale pour l'Exploration Scientifique de la Mer Mediterranée (1985), 29

Detailed reference viewed: 10 (0 ULg)
See detailMadame Bovary, celle que l'on n'attendait pas.
Saint-Amand, Denis ULg

Conference given outside the academic context (2012)

Detailed reference viewed: 9 (1 ULg)
See detailMadame Bovary. Costumbres de provincia
Flaubert, Gustave; Willson, Patricia ULg; Capdevielle, Bernardo

Book published by Ediciones Colihue (2008)

Detailed reference viewed: 33 (10 ULg)