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See detailThe mayonnaise droplet
Terwagne, Denis ULg; Mack, Nicolas; Dorbolo, Stéphane ULg et al

Poster (2009, March)

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See detailElectrostatic Analysis of Moving Conductors Using a Perturbation Finite Element Method
Boutaayamou, Mohamed ULg; V Sabariego, Ruth ULg; Dular, Patrick ULg

in IEEE Transactions on Magnetics (2009), 45(3), 1004-1007

This paper deals with the analysis of electrostatic problems involving moving devices by means of a perturbation finite element method. A reference problem without any moving parts is first solved and ... [more ▼]

This paper deals with the analysis of electrostatic problems involving moving devices by means of a perturbation finite element method. A reference problem without any moving parts is first solved and gives the source for a sequence of perturbation problems in subdomains restricted to the neighborhood of these parts. The source accounts for all the previous calculations for preceding positions what increases the efficiency of the simulations. This proposed approach also improves the computation accuracy and decreases the complexity of the analysis of moving conductors thanks to the use of independent and adaptively refined meshes. [less ▲]

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See detailInfluence of gas species on backdraft probability using a diffusion flame limits criterion
Pérez Jiménez, Christian; Franssen, Jean-Marc ULg; Karlsson, Bjorn

in Journal of Fire Sciences (2009), 27(2), 143-156

Backdraft is a limited-ventilation fire phenomenon closely linked to the unburnt gases accumulated in the fire compartment just before creating an opening that allows a new supply of oxygen to enter the ... [more ▼]

Backdraft is a limited-ventilation fire phenomenon closely linked to the unburnt gases accumulated in the fire compartment just before creating an opening that allows a new supply of oxygen to enter the compartment. The aim of this article is to help understanding the influence of gas species such as hydrocarbon CmHn, water, carbon dioxide, oxygen, and nitrogen on backdraft probability. The influence of increasing the number of moles of the above gas species as well as the number of atoms of carbon, hydrogen, and oxygen in the fuel composition is analyzed. For this purpose, a diffusion flame limit criterion based on Le Chatelier's rule is used. In order to verify the obtained results, validation with 41 backdraft experiments is carried out. [less ▲]

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See detailIntermodal transport and logistical organization of enterprises: added values and bottlenecks
Marchal, Jean ULg

in 1° Forum do Planejamento de Transportes do Amazonas (2009, March)

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See detailL’étude du mois. Traitement de l’hépatocarcinome au stade palliatif par Sorafenib (Nexavar) :Résultats de l’étude SHARP (Sorafenib Hepatocarcinoma Assessment Randomized Protocol)
Detry, Olivier ULg; Delwaide, Jean ULg; Deroover, Arnaud ULg et al

in Revue Médicale de Liège (2009), 64(3), 168-170

Curative management of early-stage hepatocarcinoma may include partial hepatic resection, liver transplantation or tumoral necrosis using radiofrequency ablation or alcoholisation. Until recently, no ... [more ▼]

Curative management of early-stage hepatocarcinoma may include partial hepatic resection, liver transplantation or tumoral necrosis using radiofrequency ablation or alcoholisation. Until recently, no efficient therapeutic mean was available for advanced hepatocarcinoma. Sorafenib is a multikinase inhibitor that decreases tumoral proliferation and angiogenesis, and increases apoptosis in many cancer models. The results of a phase 3 randomized, multicentric, study, entitled SHARP, have now demonstrated that Sorafenib increases survival in patients with advanced hepatocarcinoma developed in Child A cirrhosis. Mean survival gain was a little less than 3 months, without any radiologic response or improvement in the delay before symptomatic progression of the disease. The monthly cost of Sorafenib is a little more than 5,000 euros. It is now crucial to evaluate the potential role of Sorafenib in adjuvant therapy after liver resection or radiofrequency ablation of hepatocarcinoma. The CHU of Liège is taking part to a randomized, multicentric study evaluating the use of Sorafenib after liver resection or radiofrequency ablation for hepatocarcinoma. Another future evaluation could be the association of Sorafenib with other antitumoral agents. [less ▲]

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See detailpH-sensitive micellar systems for controlled drug delivery: synthesis and structural characterization by small-angle neutron scattering
Joset, Arnaud ULg; Jérôme, Christine ULg; Brulet, Annie et al

Poster (2009, March)

The aim of the project is the preparation of micellar nanocarriers made of biocompatibles copolymers and their structural analysis by Small Angle Neutron Scattering (SANS). These micelles could be used in ... [more ▼]

The aim of the project is the preparation of micellar nanocarriers made of biocompatibles copolymers and their structural analysis by Small Angle Neutron Scattering (SANS). These micelles could be used in drug delivery applications to fight cancer1. The hydrophobic polycaprolactone (PCL) core is intended to incorporate the drug. The corona of hydrophilic polyethylene oxide (PEO) stabilizes the nanocarriers with respect to the plasma proteins. The pH in the neighborhood of the tumoral cells is lower than in the healthy cells. We incorporated a pH-sensitive sequence of poly(2-vinylpyridine) (P2VP). As a result, these micelles are expected to deliver their drug near the cancerous cells without affecting the healthy cells. When the pH is acidic, the P2VP is protonated and the chains are repulsive. The micellar size is then larger than in basic pH, when the P2VP is precipitated on the PCL core. We prepared PCL65-b-P2VP31 / PCL65-b-PEO114 and PCL32-b-P2VP52 / PCL36-b-PEO114 50:50 mixtures of diblocks copolymers. The resulting mixed micelles are analyzed by SANS. We developed a theoretical model with a spherical water-free PCL core. The PEO corona is described as consisting of gaussian chains with a thickness estimated as twice the chain gyration radius, Rg. We propose two alternatives for handling the P2VP zone. The P2VP molecules are either assumed to be Gaussian chains or they fill a shell of thickness L with possible water penetration.The fitting of the models to the experimental scattering cross sections leads to important structural parameters like the aggregation number, the core radius, the gyration radius and the thickness of the P2VP shell. [less ▲]

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See detailRespecter la colère des marchés
Choffray, Jean-Marie ULg

in Pekar Lempereur, Alain (Ed.) Le leadership responsable : un allié sûr contre la crise (2009)

Les marchés sont à l’économie ce que la démocratie est à la politique !... La situation exceptionnelle que nous connaissons aujourd’hui ne constitue nullement une crise dans la mesure où elle était ... [more ▼]

Les marchés sont à l’économie ce que la démocratie est à la politique !... La situation exceptionnelle que nous connaissons aujourd’hui ne constitue nullement une crise dans la mesure où elle était parfaitement prévisible. Elle traduit, par contre, l’insatisfaction profonde de celles et ceux - que l’on appelle des investisseurs, individuels ou institutionnels - qui confient leur capital (épargne) à des entreprises, ou à d’autres organismes, en fonction des perspectives offertes en termes de croissance opérationnelle et de croissance de la rentabilité. C’est donc bien d’une impatience nouvelle face à l’incompétence des équipes dirigeantes, au manque de transparence des états financiers, et à l’illisibilité des stratégies mises en place dans un monde, dorénavant en faible croissance, dont il s’agit. Saine défiance direz-vous ? Ou, comme auraient pu l’exprimer Saint-Augustin et Bossuet : suites d’un manquement à la vertu !... [less ▲]

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See detailAir-ice CO2 fluxes in the Arctic coastal area (Amundsen Gulf)
Geilfus, Nicolas-Xavier ULg; Tison, Jean Louis; Carnat, Gauthier et al

Poster (2009, March)

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See detailDes enregistrements inédits
Levaux, Christophe ULg

Article for general public (2009)

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See detailElmore D, de la dialectologie au blues d’aujourd’hui
Levaux, Christophe ULg

Article for general public (2009)

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See detailĐặc điểm sinh trưởng, sử dụng thức ăn và hiệu quả kinh tế trong chăn nuôi lợn Mường tại tỉnh Hòa Bình
Vu Dinh Ton; Phan Dang, Thang ULg

in Animal husbandry scientific and technical journal (2009), 3

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See detailMéthodes de gestion des principales plantes invasives en zones humides - 3 ème partie
pieret, Nora; Delbart, Emmanuel ULg; Vanderhoeven, SONIA ULg et al

in Silva Belgica (2009)

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See detailExozodiacal Disks
Hinz, Phillip; Millan-Gabet, Rafael; Defrere, Denis ULg et al

in Lawson, P. R.; Traub, W. A.; Unwin, S. C. (Eds.) Exoplanet Community Report (2009)

From the viewpoint of direct imaging of exoplanets in the visible or infrared, exozodi dust disks can be both good and bad. An exozodi disk is good if it has structures (cleared regions or resonant clumps ... [more ▼]

From the viewpoint of direct imaging of exoplanets in the visible or infrared, exozodi dust disks can be both good and bad. An exozodi disk is good if it has structures (cleared regions or resonant clumps) that suggest the gravitational presence of planets, however it is bad if the dust fills the instrumental field of view with brightness that swamps the signal from a planet. Unfortunately, it takes very little dust to compete with or overwhelm the light from a planet: an Earth‐twin signal is roughly equal to a 0.1‐AU patch of Solar‐System‐twin zodi, in the visible or infrared. Thus, exozodi measurements are extremely important, but they are also difficult to make. Current limits of detection, in units of the Solar‐System brightness, are a few hundred using the Spitzer Space Telescope, about one hundred with the Keck Interferometer (KI), and about 10 expected from the Large Binocular Telescope Interferometer (LBTI). A small coronagraph or small interferometer in space is needed in order to reach the sensitivity required to detect the glow at the level of our own Solar System. [less ▲]

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See detailAnnotation of Omar Sougou's Writing Across Cultures: Gender Politics and Difference in the Fiction of Buchi Emecheta
Tunca, Daria ULg

in Routledge Annotated Bibliography of English Studies (2009)

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