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See detail“Ben n’en vl’a d’eune Allégorie”. Allégorie et langue peuple : de Rictus à Mallarmé
Durand, Pascal ULg

in Cahiers Stéphane Mallarmé (2006), 3

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See detailThe lymphatic ring assay: a new in vitro model of lymphangiogenesis
Bruyère, F; Melen, L; Blacher, Silvia ULg et al

Poster (2006)

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See detailLa réforme du Conseil de sécurité de l'ONU: nécessaire mais impossible?
Delvenne, Pierre ULg

Master of advanced studies dissertation (2006)

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See detailMathematical modeling of bone regeneration including the angiogenic process
Geris, Liesbet ULg; Vander Sloten, Jos; Van Oosterwyck, Hans

in Journal of Biomechanics (2006), 39(S1), 411-412

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See detailUltimate limit state design technology for aluminum multi-hull ship structures
PAIK, Jeom; HUghes, Owen; Rigo, Philippe ULg

in Transactions - Society of Naval Architects and Marine Engineers (2006), 113

The present paper is a summary of recent research and developments related to some core ultimate limit state (ULS) technologies for design and strength assessment of aluminum multi-hull ship structures ... [more ▼]

The present paper is a summary of recent research and developments related to some core ultimate limit state (ULS) technologies for design and strength assessment of aluminum multi-hull ship structures, jointly undertaken by Pusan National University, Virginia Tech, U.S. Naval Surface Warfare Center and Alcan Marine. An extensive study on the subject has been undertaken by the authors theoretically, numerically and experimentally. Methods to analyze hull girder loads I load effects, stiffened panel ultimate strength and hull girder ultimate strength of aluminum multi-hull ship structures are developed in the present study. Application examples of the methodologies for the ULS structural design and strength assessment of a hypothetical 120m long all aluminum catamaran fast ship structure are presented. Important insights and conclusions developed from the present study are summarized. Some of the comparisons have shown that 5383 called Sealium (a patented Alcan Marine alloy) is superior to the standard aluminum alloy 5083 in terms of material properties, ULS characteristics and welding performance. It is our hope that the methods developed from the present study will be useful for ULS design and strength assessment of aluminum multi-hull ship structures. [less ▲]

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See detailAn FEM-aided investigation of the deformation during single point incremental forming
He, S.; Van Bael, A.; Van Houtte, P. et al

in Modelling & Simulation in Materials Science & Engineering (2006)

Incremental forming is an innovative and flexible sheet metal forming technology for small batch production and prototyping, which does not require any dedicated die or punch to form a complex shape. This ... [more ▼]

Incremental forming is an innovative and flexible sheet metal forming technology for small batch production and prototyping, which does not require any dedicated die or punch to form a complex shape. This paper investigates the process of single point incremental forming of an aluminium cone both experimentally and numerically. Finite element models are established to simulate the process. The output of the simulation is given in terms of final geometry, the thickness profile of the product and the strain history and distribution during the deformation. Comparison between the simulation results and the experimental data is made. [less ▲]

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See detailInclusion of a stress-dependent Preisach model in 2D FE calculations
Benabou, A.; Vandenbossche, L.; Gyselinck, Johan et al

in Compel-the International Journal for Computation and Mathematics in Electrical and Electronic Engineering (2006), 25(1), 81-90

Purpose - Mechanical stress can heavily affect the magnetic behaviour law in ferromagnetic materials. This paper, aims to take into account the effect of mechanical stress into a hystreresis model. This ... [more ▼]

Purpose - Mechanical stress can heavily affect the magnetic behaviour law in ferromagnetic materials. This paper, aims to take into account the effect of mechanical stress into a hystreresis model. This model is implemented in a finite element analysis code and tested in the case of a simple system. Design/methodology/approach - A simple extension of the classical Preisach model is proposed, in which a function linked to the Preisach density is parameterized using the mechanical stress as a supplementary parameter. The methodology is based on experimental measurements for identifying the required function. As a first approach, a linear interpolation is used between the measurements in order to have a continuous evolution of the magneto-mechanical behaviour. This model has been tested in the case of a steel sheet in which width is not constant in order to obtain a non-uniform distribution of stress and magnetic flux density. Findings - The model can predict the magneto-mechanical behaviour with a good accuracy in the case of tensile stress. Implementation of the model in finite element analysis has shown that the model can predict the behaviour of steel sheet subject to a non-uniform stress distribution. Originality/value - This paper shows that a classical hysteresis model can be extended to take into account the magneto-mechanical behaviour. This is useful for the design of electrical machines which are subject to non-negligible mechanical stress. [less ▲]

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See detailBaryon resonances in large N(c) QCD
Matagne, Nicolas; Stancu, Floarea ULg

in Bled Workshops in Physics (2006), 7(1), 61-66

The baryon spectra are discussed in the context of the $1/N_c$ expansion approach, with emphasis on mixed symmetric states. The contributions of the spin dependent terms as a function of the excitation ... [more ▼]

The baryon spectra are discussed in the context of the $1/N_c$ expansion approach, with emphasis on mixed symmetric states. The contributions of the spin dependent terms as a function of the excitation energy are shown explicitly. At large energies these contributions are expected to vanish. [less ▲]

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See detailRegulation by androgens of EGF receptor family members in prostate cancer cells
Pignon, Jean-Christophe; Delacroix, Laurence ULg; Waltregny, David ULg et al

in Proceedings of the American Association for Cancer Research (2006)

After an initial positive response to anti-androgen treatment, prostate cancer (PCa) cells usually become hormone-refractory in spite of their persistent expression of the androgen receptor (AR ... [more ▼]

After an initial positive response to anti-androgen treatment, prostate cancer (PCa) cells usually become hormone-refractory in spite of their persistent expression of the androgen receptor (AR). Overexpression of tyrosine kinase receptors in androgen-deprived PCa cells, such as those of the EGF receptor (EGFR) family, may be responsible for AR activation and growth of androgen-deprived tumours. Our goal is to understand the control of the expression of the EGFR family members by androgens in PCa. Hormone response was compared in hormone-sensitive LNCaP and hormone-insensitive DU145 PCa cell lines. These cells do not express ErbB4. EGFR, erbB2 and erbB3 protein half-life is much longer in DU145 than in LNCaP cells grown in complete medium. Dihydrotestosterone (DHT) modulates EGFR and erbB2 transcript and protein levels only in LNCaP cells. ErbB3 is not an androgen-responsive gene. EGFR mRNA and protein levels are increased while erbB2 mRNA and protein levels are decreased after DHT treatment of cells cultured in steroid-deprived medium. ErbB2 mRNA and protein levels are increased in LNCaP cells following DHT withdrawal. In order to understand the mechanisms by which androgens control the expression of EGFR and ERBB2 genes, half lifes of the corresponding mRNAs and proteins were compared in cells grown in presence or absence of DHT. The effect of DHT on EGFR gene expression is complex. Indeed, DHT stabilizes the protein. Moreover, a superinduction of EGFR mRNA was observed in cells treated with cycloheximide (CHX) before addition of the hormone, suggesting an effect on transcript stability. In contrast, erbB2 mRNA and protein stability was not affected by DHT. CHX treatment for 2h before addition of DHT suppresses the androgen-induced down-regulation of erbB2 mRNA levels. In summary, androgen-mediated regulation of EGFR and ERBB2 genes expression is complex. DHT influences EGFR gene transcription, mRNA and protein stability. DHT does not affect erbB2 mRNA and protein stability but acts indirectly on transcription. Current experiments are undertaken to verify these observations by Chromatin-IP experiments on both genes promoters. [less ▲]

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See detailNumerical simulation of blaststructure interaction
Noels, Ludovic ULg; Radovitzky, Raul

Conference (2006)

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See detail‘Migrants aveugles’ : luttes de classement et contrôle social dans la Chine des réformes économiques
Florence, Eric ULg

in Une criminologie de la tradition à l’innovation. En hommage à Georges Kellens (2006)

Ce chapitre traite des représentations des migrants d’origine rurale à la fin des années 1980 et au début des années 1990, période au cours de laquelle la question des migrations commence à occuper une ... [more ▼]

Ce chapitre traite des représentations des migrants d’origine rurale à la fin des années 1980 et au début des années 1990, période au cours de laquelle la question des migrations commence à occuper une place de premier plan dans le débat public. Sur la base d’une analyse détaillée de la presse quotidienne et hebdomadaire, de magazines scientifiques et d’ouvrages issus de la littérature de reportage publiés entre 1986 et 1991, l’auteur montre qu’une lutte se déroule autour de la représentation des migrations ; elle s’articule principalement autour de deux axes : l’Etat et l’économie de marché. L’enjeu de cette lutte est la légitimité de la présence des migrants en ville et elle touche à la redéfinition de la hiérarchie sociale et spatiale. [less ▲]

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See detailVirtual networks under attack: disrupting internet coordinate systems
Kaafar, M. A.; Mathy, Laurent ULg; Turletti, T. et al

in Proceedings of the 2006 ACM CoNEXT conference (2006)

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See detailNew appendix criteria open for a broader concept of chronic migraine.
Olesen, J.; Bousser, M*-G; Diener, H*-C et al

in Cephalalgia : An International Journal of Headache (2006), 26(6), 742-6

After the introduction of chronic migraine and medication overuse headache as diagnostic entities in The International Classification of Headache Disorders, Second Edition, ICHD-2, it has been shown that ... [more ▼]

After the introduction of chronic migraine and medication overuse headache as diagnostic entities in The International Classification of Headache Disorders, Second Edition, ICHD-2, it has been shown that very few patients fit into the diagnostic criteria for chronic migraine (CM). The system of being able to use CM and the medication overuse headache (MOH) diagnosis only after discontinuation of overuse has proven highly unpractical and new data have suggested a much more liberal use of these diagnoses. The International Headache Classification Committee has, therefore, worked out the more inclusive criteria for CM and MOH presented in this paper. These criteria are included in the appendix of ICHD-2 and are meant primarily for further scientific evaluation but may be used already now for inclusion into drug trials, etc. It is now recommended that the MOH diagnosis should no longer request improvement after discontinuation of medication overuse but should be given to patients if they have a primary headache plus ongoing medication overuse. The latter is defined as previously, i.e. 10 days or more of intake of triptans, ergot alkaloids mixed analgesics or opioids and 15 days or more of analgesics/NSAIDs or the combined use of more than one substance. If these new criteria for CM and MOH prove useful in future testing, the plan is to include them in a future revised version of ICHD-2. [less ▲]

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See detailJacques IZOARD, Œuvres complètes, Volume II : Poésies 1979-2000
Purnelle, Gérald ULg

Book published by La Différence (2006)

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See detailDéchiffrer Vénus. Renaissance et âge classique
Droixhe, Daniel ULg

in Journal de la Renaissance. IV (2006)

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See detailCarte hydrogéologique de Wallonie, 1/25000, 68/5-6 Etalle-Tintigny, notice explicative.
Bouezmarni, Mohamed ULg; Debbaut, Vincent ULg

Book published by SPW, DGARNE - peer reviewed (2006)

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See detailEquilibrium traffic assignment on large Virtual Networks: Implementation issues and limits for multi-modal freight transport
Jourquin; Limbourg, Sabine ULg

in European Journal of Transport and Infrastructure Research (2006), 6(3), 205-228

Multi-Modal freight models are traditionally built following the well known “four steps model” in which generation, distribution, modal-split and assignment are seen as separated modules. An alternative ... [more ▼]

Multi-Modal freight models are traditionally built following the well known “four steps model” in which generation, distribution, modal-split and assignment are seen as separated modules. An alternative approach, now implemented in some software, is to represent the multi-modal network by means of a “mono-modal” one, in which each particular transport operation (loading or unloading operation, transhipments ...) is represented by a dedicated “virtual link”, that represents a specific operation in the transportation chain. This approach, promoted by several authors, often referenced to as “super networks” or “virtual networks”, is proven to give interesting results, but has the drawback to generate much larger networks than the pure geographic representation of the studied area. It has also some kind of “hidden trap”, linked to transport distances, that will be presented in this paper and that can only be solved using appropriate assignment techniques. This paper presents some results obtained on a large multi-modal network, using different equilibrium assignment algorithms, in order to test their ability to give an appropriate solution to the “distance trap”. It however concludes that the implementation of classical equilibrium assignment techniques leads to solutions that are barely different from the one obtained by a simple all-or-nothing assignment, opening the way to alternative multi-flow solutions. [less ▲]

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See detailL'Hantavirose fait encore parler d'elle
Bourhaba, Maryam ULg; GIOT, Jean-Baptiste ULg; Tshialala, D. M. et al

in Revue Médicale de Liège (2006), 61(5-6, May-Jun), 322-8

We propose a review of history, aetiology, physiopathology, clinical features, treatment and prevention of nephropathia epidemica (NE) which represents the only form of Hantavirus infection in Belgium.

Detailed reference viewed: 47 (3 ULg)