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See detailMixed IBD families: A distinct entity within IBD
Pierik, M.; Van Steen, Kristel ULg; Joossens, M. et al

in Gastroenterology (2007), 132(4), 450-450

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See detailA Mixed Integer Programming formulation for the three dimensional bin packing problem deriving from an air cargo application
Paquay, Célia ULg; Schyns, Michael ULg; Limbourg, Sabine ULg

in International Transactions in Operational Research (2014)

The present paper looks into the problem of optimising the loading of boxes into containers. The goal is to minimise the unused volume. This type of problem belongs to the family of Multiple Bin Size Bin ... [more ▼]

The present paper looks into the problem of optimising the loading of boxes into containers. The goal is to minimise the unused volume. This type of problem belongs to the family of Multiple Bin Size Bin Packing Problems. The approach includes an extensive set of constraints encountered in real-world applications in the three-dimensional case: the stability, the fragility of the items, the weight distribution and the possibility to rotate the boxes. It also includes the specific situation in which containers are truncated parallelepipeds. This is typical in the field of air transportation. While most papers on cutting and packing problems describe ad-hoc procedures, this paper proposes a mixed integer linear program. The validity of this model is tested on small instances. [less ▲]

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See detailMixed Isobutylphobane/N-Heterocyclic Carbene Ruthenium-Indenylidene Complexes: Synthesis and Catalytic Evaluation in Olefin Metathesis Reactions
Sauvage, Xavier ULg; Zaragoza, Guillermo; Demonceau, Albert ULg et al

in Advanced synthesis & catalysis (2010), 352(11-12), 1934-1948

Two new second generation ruthenium(11) dichloride-indenylidene complexes [RuCl2(9-isobutylphosphabicyclo[3.3.1]nonane)(NHC)(3-phenyl-1-indenylide ne)1, where NHC,3-bis(2,4,6-tri-methylphenyl)imidazolin-2 ... [more ▼]

Two new second generation ruthenium(11) dichloride-indenylidene complexes [RuCl2(9-isobutylphosphabicyclo[3.3.1]nonane)(NHC)(3-phenyl-1-indenylide ne)1, where NHC,3-bis(2,4,6-tri-methylphenyl)imidazolin-2-ylidene (SIMes) or its unsaturated imidazol-2-ylidene analogue (1Mes). were isolated in high yields upon heating a tetrahydrofuran (THF) solution of the diphosphane complex [RuCl2(isobutylphobane)2(3-phenyl-1-indenylidene)] with a two-fold excess of the corresponding imidazol(in)ium-2-carboxylate zwitterions. Both products were characterized by H-1, C-13, and P-33 NMR spectroscopy, and the molecular structure of [RuCl2(isobutylphobane)(SIMes)(3-phenyl-1-indenylidene)] was determined by X-ray diffraction analysis. A close inspection of the packing structure revealed the presence of different types of intra- and intermolecular interactions that enhanced the global stability of the crystals, while low temperature NMR experiments showed the existence of two distinct rotational isomers due to the unsymmetrical nature of the phobane ligand The catalytic activity of both compounds was assessed in olefin metathesis using [less ▲]

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See detailMixed Lubrication Regime in Cold Strip Rolling
Carretta, Yves ULg; Boman, Romain ULg; Legrand, Nicolas et al

in 2nd Annual ArcelorMittal CFD and Thermomechanics Days 2012 (2012, January)

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See detailMixed micelles of anionic-nonionic and anionic-zwitterionic surfactants analyzed by pulsed field gradient NMR
Misselyn-Bauduin, Anne-Marie; Thibaut, Anne; Grandjean, Jean ULg et al

in Langmuir (2000), 16(10), 4430-4435

The micellar composition of two binary surfactant systems, that is, sodium dodecyl sulfate (SDS)/pentaethylene glycol monodecyl ether (C10E5) and SDS/lauryl amido propyl betaine (LAPB), has been analyzed ... [more ▼]

The micellar composition of two binary surfactant systems, that is, sodium dodecyl sulfate (SDS)/pentaethylene glycol monodecyl ether (C10E5) and SDS/lauryl amido propyl betaine (LAPB), has been analyzed by pulsed gradient spin−echo NMR (FT-PGSE NMR). The experimental data have been compared to theoretical predictions based on the regular solution theory that takes into account the nonideal mixing of the surfactant pairs. Although good agreement between experiment and theory is observed for the SDS/C10E5 pair, some discrepancy is noted for the LAPB/SDS system, particularly at a high molar fraction of SDS. [less ▲]

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See detailMixed Middle Jurassic sedimentation from North East of Iran: sedimentological model and carbonate production versus detrital inputs influence
Sardar Abadi, Mehrdad; Da Silva, Anne-Christine ULg; Zamanzadeh

in 14th Bathurst meeting, Bristol University, Abstract Book (2011)

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See detailMixed modes in red-giant stars observed with CoRoT
Mosser, B.; Barban, C.; Montalban Iglesias, Josefa ULg et al

in Astronomy and Astrophysics (2011), 532

Context. The CoRoT mission has provided thousands of red-giant light curves. The analysis of their solar-like oscillations allows us to characterize their stellar properties. <BR /> Aims: Up to now, the ... [more ▼]

Context. The CoRoT mission has provided thousands of red-giant light curves. The analysis of their solar-like oscillations allows us to characterize their stellar properties. <BR /> Aims: Up to now, the global seismic parameters of the pressure modes have been unable to distinguish red-clump giants from members of the red-giant branch. As recently done with Kepler red giants, we intend to analyze and use the so-called mixed modes to determine the evolutionary status of the red giants observed with CoRoT. We also aim at deriving different seismic characteristics depending on evolution. <BR /> Methods: The complete identification of the pressure eigenmodes provided by the red-giant universal oscillation pattern allows us to aim at the mixed modes surrounding the ℓ = 1 expected eigenfrequencies. A dedicated method based on the envelope autocorrelation function is proposed to analyze their period separation. <BR /> Results: We have identified the mixed-mode signature separation thanks to their pattern that is compatible with the asymptotic law of gravity modes. We have shown that, independent of any modeling, the g-mode spacings help to distinguish the evolutionary status of a red-giant star. We then report the different seismic and fundamental properties of the stars, depending on their evolutionary status. In particular, we show that high-mass stars of the secondary clump present very specific seismic properties. We emphasize that stars belonging to the clump were affected by significant mass loss. We also note significant population and/or evolution differences in the different fields observed by CoRoT. The CoRoT space mission, launched 2006 December 27, was developed and is operated by the CNES, with participation of the Science Programs of ESA, ESAŠs RSSD, Austria, Belgium, Brazil, Germany, and Spain.Apeendix A is available in electronic form at <A href="http://www.aanda.org">http://www.aanda.org</A> [less ▲]

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See detailMixed monolayers of gluten-emulsifiers at the air-water interface
Balla, A.; Blecker, Christophe ULg; Razafindralambo, Hary ULg et al

in Biopolymer Science: Food And Non Food Applications (1999), (91), 213-216

The interactions and miscibility analysis of gluten-emulsifiers mixed film show that those films are not completely miscible as demonstrated by the presence of both two transition zones and also by the ... [more ▼]

The interactions and miscibility analysis of gluten-emulsifiers mixed film show that those films are not completely miscible as demonstrated by the presence of both two transition zones and also by the deviation of the mean molecular areas of mixed films from the values calculated according to the rule of additivity (GAINES, 1966). Furthermore, the free energy excess of mixing is positive in presence of emulsifiers, confirming the partial miscibility of gluten emulsifier monolayers. [less ▲]

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See detailMixed monolayers of gluten-emulsifiers at the air-water interface.
Balla, A.; Blecker, Christophe ULg; Razafindralambo, Hary ULg et al

Poster (1998, September)

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See detailMixed origin of neovascularization of human endometrial grafts in immunodeficient mouse models
Alvarez Gonzalez, Maria-Luz ULg; Frankenne, F.; Galant, C. et al

in Human Reproduction (2009), 24(9), 2217-24

BACKGROUND: In vivo mouse models have been developed to study the physiology of normal and pathologic endometrium. Although angiogenesis is known to play an important role in endometrial physiology and ... [more ▼]

BACKGROUND: In vivo mouse models have been developed to study the physiology of normal and pathologic endometrium. Although angiogenesis is known to play an important role in endometrial physiology and pathology, the origin of neovasculature in xenografts remains controversial. The aim of this study was to assess the origin of the neovasculature of endometrial grafts in different mouse models. METHODS: Human proliferative endometrium (n = 19 women) was grafted s.c. in two immunodeficient mouse strains: nude (n = 8) and severely compromised immunodeficient (SCID; n = 20). Mice were also treated with estradiol, progesterone or levonorgestrel. Fluorescence in-situ hybridization using a centromeric human chromosome X probe, immunohistochemistry (von Willebrand factor and collagen IV) and lectin perfusion were performed to identify the origin of the vessels. RESULTS: More than 90% of vessels within xenografts were of human origin 4 weeks after implantation. Some vessels (9.67 +/- 2.01%) were successively stained by human or mouse specific markers, suggesting the presence of chimeric vessels exhibiting a succession of human and murine portions. No difference in staining was observed between the two strains of mouse or different hormone treatments. Furthermore, erythrocytes were found inside human vessels, confirming their functionality. CONCLUSION: This article shows that human endometrial grafts retain their own vessels, which connect to the murine vasculature coming from the host tissue and become functional. [less ▲]

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See detailMixed Phenotype Murine Leukemias
Defresne, Marie-Paule ULg; Borremans, B.; Verhofstede, C. et al

in Leukemia : Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K (1993), 7(8), 1253-60

Cell lines were derived from eight individual leukemias induced by X-rays in NFS mice. First typed as null cells (surface immunoglobulin negative, Thy-1 negative), they turned out to have a mixed ... [more ▼]

Cell lines were derived from eight individual leukemias induced by X-rays in NFS mice. First typed as null cells (surface immunoglobulin negative, Thy-1 negative), they turned out to have a mixed phenotype with myeloid cytochemical markers, pre-B surface antigens and molecular markers of pro-B lymphocytes. They represent murine models for mixed phenotype (pro-pre-B-myeloid) leukemias. [less ▲]

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See detailMixed Reality Prototypes to Support Early Creative Design
Safin, Stéphane ULg; Delfosse, Vincent ULg; Leclercq, Pierre ULg

in Dubois, E.; Gray, P.; Nigay, L. (Eds.) The Engineering of Mixed Reality Systems (2010)

Many complex IT projects are still primarily focusing on today's technological challenges. The adaptation of the core technologies to potential applications often occurs in a second stage where the end ... [more ▼]

Many complex IT projects are still primarily focusing on today's technological challenges. The adaptation of the core technologies to potential applications often occurs in a second stage where the end-users are involved. We describe a different approach, involving the users at the very beginning of the development. The domain we address is the creative design, mainly architecture. Rooted in a multidisciplinary approach as well as a deep understanding of architecture and design, our method aims at proposing adapted mixed reality solution to support two crucial activities : sketch-based preliminary design and distant synchronous collaboration in design. This chapter provides a summary of our work on a mixed-reality device based on a drawing table (the Virtual Desktop) designed specifically to address real-life/trade-focused issues. We explain our methodology, describe the two supported activities and the related users’s needs, we detail the technological solution we have developed and we present the main results of the multiple evaluation sessions. We then conclude on the usefulness of the profession-centered methodology and on the pertinence of the mixed reality to support creative design activities. [less ▲]

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See detailMixed self-assembly of poly(ethylene oxide)-b-poly(epsilon-caprolactone) copolymers and sodium dodecyl sulfate in aqueous solution
Vangeyte, Patrick; Leyh, Bernard ULg; Auvray, L. et al

in Langmuir (2004), 20(21), 9019-9028

Interaction of amphiphilic poly(ethylene oxide)-b-poly(epsilon-caprolactone) copolymers with anionic sodium dodecyl sulfate (SDS) has been investigated in aqueous solution. Formation of mixed micelles has ... [more ▼]

Interaction of amphiphilic poly(ethylene oxide)-b-poly(epsilon-caprolactone) copolymers with anionic sodium dodecyl sulfate (SDS) has been investigated in aqueous solution. Formation of mixed micelles has been confirmed by surface tension measurements, whereas the influence of the surfactant on the copolymer self-assembling has been studied by measurement of the 1H NMR self-diffusion coefficients and by small-angle neutron scattering. As a rule, the surfactant decreases the heterogeneity of the micellar structures formed by the copolymer in water. Moreover, increasing the content of SDS results in the increasingly more important extension of the poly(ethylene oxide) (PEO) corona chains and the copolymer micelle deaggregation. The stability of the micelles against SDS increases with the length of the hydrophobic block. Preliminary two-dimensional NMR measurements with nuclear Overhauser enhancement have confirmed the spatial vicinity between SDS and the constitutive blocks of the copolymer. [less ▲]

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See detailA mixed solid-shell element for the analysis of laminated composites
Rah, Kamran; Paepegem, Wim; Habraken, Anne ULg et al

in International Journal for numerical methods in engineering (2012), 89(7), 805-828

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See detailMixed symmetric baryon multiplets in large $N_c$ QCD: two and three flavours
Matagne, Nicolas; Stancu, Floarea ULg

in Bled Workshops in Physics (2010), 11(1), 37-43

We propose a new method to study mixed symmetric multiplets of baryons in the context of the $1/N_c$ expansion approach. The simplicity of the method allows to better understand the role of various ... [more ▼]

We propose a new method to study mixed symmetric multiplets of baryons in the context of the $1/N_c$ expansion approach. The simplicity of the method allows to better understand the role of various operators acting on spin and flavour degrees of freedom. The method is tested on two and three flavours. It is shown that the spin and flavour operators proportional to the quadratic invariants of SU$_S$(2) and SU$_F$(3) respectively are dominant in the mass formula. [less ▲]

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See detailMixed Zone 3: "What is Africa to me now? The continent and its literary diasporas"
Ledent, Bénédicte ULg; Tunca, Daria ULg

Article for general public (2013)

Présentation bilingue des écrivains Jackie Kay, Caryl Phillips et Chika Unigwe, ainsi que du photographe Johny Pitts, suivie d'extraits vidéo de leurs interventions dans le cadre du colloque "What is ... [more ▼]

Présentation bilingue des écrivains Jackie Kay, Caryl Phillips et Chika Unigwe, ainsi que du photographe Johny Pitts, suivie d'extraits vidéo de leurs interventions dans le cadre du colloque "What is Africa to me now? The continent and its literature diasporas". [less ▲]

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See detailA mixed-integer heuristic for the structural optimization of a cruise ship
Bay, Maud ULg; Crama, Yves ULg; Richir, Thomas et al

in COMPIT 2007 , Cortona, Italy (2007, April 23)

A heuristic approach is proposed to solve the structural optimization problem of a cruise ship. The challenge of optimization is to define the scantling of the structure of a ship in order to minimize the ... [more ▼]

A heuristic approach is proposed to solve the structural optimization problem of a cruise ship. The challenge of optimization is to define the scantling of the structure of a ship in order to minimize the weight or the production cost. The variables are the dimensions and positions of the constitutive elements of the structure: they are discrete by nature. The objective functions are nonlinear functions. The structure is submitted to geometric constraints and to structural constraints. The geometric constraints are linear functions and the structural constraints are implicit functions requiring a high computation cost. The problem belongs to the class of mixed-integer nonlinear problems (MINLP). A local heuristic of the type “dive and fix” is combined with a solver based on approximation methods. The solver is used as a black-box tool to perform the structural analysis and solve the nonlinear optimization problems (NLP) defined by the heuristic. The heuristic is designed to always provide a discrete feasible solution. Experiments on a real-size structure demonstrate that the optimal value of the mixed-integer problem is of the same magnitude as the optimal value of the optimization problem for which all the variables can take continuous values. [less ▲]

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See detailMixed-integer sets from two rows of two adjacent simplex bases
Andersen, Kent; Louveaux, Quentin ULg; Weismantel, Robert

in Mathematical Programming (2010), 124(1-2), 455-480

In 2007 we studied a mixed-integer set arising from two rows of a simplex tableau. We showed that facets of such a set can be obtained from lattice point free triangles and quadrilaterals associated with ... [more ▼]

In 2007 we studied a mixed-integer set arising from two rows of a simplex tableau. We showed that facets of such a set can be obtained from lattice point free triangles and quadrilaterals associated with either three or four variables. In this paper we generalize our findings and show that, when upper bounds on the non-basic variables are also considered, further classes of facets arise that cannot be obtained from triangles and quadrilaterals. Specifically, when exactly one upper bound on a non-basic variable is intro- duced, stronger inequalities that can be derived from pentagons involving up to six variables also appear. [less ▲]

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See detailMixing in magnetic OB stars
Morel, Thierry ULg

in Bulletin de la Société Royale des Sciences de Liège (2011), 80

Detailed reference viewed: 4 (4 ULg)