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
See detailCollective dominance: An overview of national case law
Petit, Nicolas ULiege; Neyrinck, Norman ULiege

in e-Competitions (2011), N°39129

This article aims at providing an overview of the national case law on collective dominance in Europe. We observe that overall, most domestic decisions have manifestly integrated the EU case law and ... [more ▼]

This article aims at providing an overview of the national case law on collective dominance in Europe. We observe that overall, most domestic decisions have manifestly integrated the EU case law and followed the shift from a structural approach towards a more behavioral approach. We higlight several protruding cases on the definition of the notion of abuse and the most creative remedies devised by national competition authorities so far. [less ▲]

Detailed reference viewed: 213 (10 ULiège)
Peer Reviewed
See detailCollective effects during crystal growth in the presence of mobile nonreactive impurities: experiments and simulations
Vandewalle, Nicolas ULiege; Ausloos, Marcel ULiege; Cloots, Rudi ULiege

in Journal of Crystal Growth (1999), 197(1-2), 317-324

The growth of a solid phase in a liquid medium containing randomly dispersed mesoscopic impurities is discussed. Particles represent hindrances for the growth front. They can remain static or can be ... [more ▼]

The growth of a solid phase in a liquid medium containing randomly dispersed mesoscopic impurities is discussed. Particles represent hindrances for the growth front. They can remain static or can be pushed by the advancing interface. The physics of the collective particle motion is outlined. Experiments with A12O3-SiO2 impurities in KC1 crystal serve as illustrative examples. The collective effects due to the particle concentration are investigated through a kinetic growth model. [less ▲]

Detailed reference viewed: 15 (0 ULiège)
Full Text
See detailCollective Entities as Subjects of Criminal Law. The Case of Belgium and the Netherlands
Verstraeten, Raf; Franssen, Vanessa ULiege

in Fiorella, A.; Stile, A. (Eds.) Corporate Criminal Liability and Compliance Programs (2012)

Detailed reference viewed: 8 (0 ULiège)
Full Text
Peer Reviewed
See detailCollective Entrepreneurship, a Solution to Conflicting Institutional Logics in the Entrepreneurship Process?
Dufays, Frédéric ULiege

in Teirlinck, Peter; Kelchtermans, Stijn; de Beule, Filip (Eds.) The Proceedings of the 8th European Conference on Innovation and Entrepreneurship ECIE 2013 (2013)

Detailed reference viewed: 56 (4 ULiège)
Full Text
Peer Reviewed
See detailCollective Flow and Intranuclear Cascade Dynamics
Cugnon, Joseph ULiege

in Kajantie, K. (Ed.) Quark Matter '84 (1985)

Detailed reference viewed: 15 (1 ULiège)
Full Text
Peer Reviewed
See detailCollective fluctuations in ordered fluids investigated by two-dimensional electron-electron double resonance spectroscopy
Fresch, Barbara ULiege; Frezzato, Diego; Moro, Giorgio J. et al

in Journal of Physical Chemistry B (2006), 110

Detailed reference viewed: 5 (0 ULiège)
Full Text
See detailCollective motion and oscillator synchronization
Sepulchre, Rodolphe ULiege; Paley, Derek; Leonard, Naomi

in Cooperative Control (2005)

This paper studies connections between phase models of coupled oscillators and kinematic models of groups of self-propelled particles. These connections are exploited in the analysis and design of ... [more ▼]

This paper studies connections between phase models of coupled oscillators and kinematic models of groups of self-propelled particles. These connections are exploited in the analysis and design of feedback control laws for the individuals that stabilize collective motions for the group. [less ▲]

Detailed reference viewed: 38 (4 ULiège)
Full Text
Peer Reviewed
See detailCollective motion, sensor networks, and ocean sampling
Leonard, Naomi Ehrich; Paley, Derek; Lekien, François et al

in Proceedings of the IEEE (2007), 95(1), 48-74

This paper addresses the design of mobile sensor networks for optimal data collection. The development is strongly motivated by the application to adaptive ocean sampling for an autonomous ocean observing ... [more ▼]

This paper addresses the design of mobile sensor networks for optimal data collection. The development is strongly motivated by the application to adaptive ocean sampling for an autonomous ocean observing and prediction system. A performance metric, used to derive optimal paths for the network of mobile sensors, defines the optimal data set as one which minimizes error in a model estimate of the sampled field. Feedback control laws are presented that stably coordinate sensors on structured tracks that have been optimized over a minimal set of parameters. Optimal, closed-loop solutions are computed in a number of low-dimensional cases to illustrate the methodology. Robustness of the performance to the influence of a steady flow field on relatively slow-moving mobile sensors is also explored. [less ▲]

Detailed reference viewed: 33 (6 ULiège)
Full Text
Peer Reviewed
See detailCollective Motion: Bistability and Trajectory Tracking
Paley, Derek; Leonard, Naomi; Sepulchre, Rodolphe ULiege

in Proceedings of the 43rd IEEE Conference on Decision and Control (2004, December)

This paper presents analysis and application of steering control laws for a network of self-propelled, planar particles. We explore together the two stably controlled group motions, parallel motion and ... [more ▼]

This paper presents analysis and application of steering control laws for a network of self-propelled, planar particles. We explore together the two stably controlled group motions, parallel motion and circular motion, for modeling and design purposes. We show that a previously considered control law simultaneously stabilizes both parallel and circular group motion, leading to bistability and hysteresis. We also present behavior primitives that enable piecewise-linear network trajectory tracking. [less ▲]

Detailed reference viewed: 11 (0 ULiège)
Full Text
Peer Reviewed
See detailCollective optimization over average quantities
Scardovi, Luca; Sepulchre, Rodolphe ULiege

in Proceedings of the 45th IEEE Conference on Decision and Control (2006)

This paper addresses the design of algorithms for the collective optimization of a cost function defined over average quantities in the presence of limited communication. We argue that several meaningful ... [more ▼]

This paper addresses the design of algorithms for the collective optimization of a cost function defined over average quantities in the presence of limited communication. We argue that several meaningful collective optimization problems can be formulated in this way. As an application of the proposed approach, we propose a novel algorithm that achieves synchronization or balancing in phase models of coupled oscillators under mild connectedness assumptions on the (possibly time-varying and unidirectional) communication graphs. [less ▲]

Detailed reference viewed: 8 (0 ULiège)
Full Text
Peer Reviewed
See detailCollective Post-traumatic Disorders, Residual Resources, and an Extensive Context of Trust: Creating a Network in a Refugee Camp in Former Yugoslavia
Lemaire, Jean Marie; Despret, Vinciane ULiege

in International Journal of Mental Health (2001), 30(2), 22-26

Between 1993 and 1996, at the request of Médecins Sans Frontières, Belgium, a "pilot project for network therapy centered on families" was designed for, and developed in, two refugee and displaced persons ... [more ▼]

Between 1993 and 1996, at the request of Médecins Sans Frontières, Belgium, a "pilot project for network therapy centered on families" was designed for, and developed in, two refugee and displaced persons camps during the war ravaging former Yugoslavia. These two facilities housed approximately a thousand families, most of whom had lost one or more members and were suffering from very serious trauma. We decided to accompany our intervention with a dual process of evaluation. During the preliminary stage of this evaluation, the coordinator met with some of the families to ask for their help in supplying information concerning their needs and developing the most appropriate intervention. [less ▲]

Detailed reference viewed: 32 (1 ULiège)
Full Text
Peer Reviewed
See detailCollective pulsational velocity broadening due to gravity modes as a physical explanation for macroturbulence in hot massive stars
Aerts, C.; Puls, J.; Godart, Mélanie ULiege et al

in Astronomy and Astrophysics (2009), 508

Aims. We aimed at finding a physical explanation for the occurrence of macroturbulence in the atmospheres of hot massive stars, a phenomenon found in observations for more than a decade but that remains ... [more ▼]

Aims. We aimed at finding a physical explanation for the occurrence of macroturbulence in the atmospheres of hot massive stars, a phenomenon found in observations for more than a decade but that remains unexplained.<BR /> Methods: We computed time series of line profiles for evolved massive stars broadened by rotation and by hundreds of low-amplitude nonradial gravity-mode pulsations which are predicted to be excited for evolved massive stars.<BR /> Results: In general, line profiles based on macrotubulent broadening can mimic those subject to pulsational broadening. In several cases, though, good fits require macroturbulent velocities that pass the speed of sound for realistic pulsation amplitudes. Moreover, we find that the rotation velocity can be seriously underestimated by using a simple parameter description for macroturbulence rather than an appropriate pulsational model description to fit the line profiles.<BR /> Conclusions: We conclude that macroturbulence is a likely signature of the collective effect of pulsations. We provide line diagnostics and their typical values to decide whether or not pulsational broadening is present in observed line profiles, as well as a procedure to avoid an inaccurate estimation of the rotation velocity. [less ▲]

Detailed reference viewed: 28 (2 ULiège)
Full Text
See detailCollective Redress in Multiple Perspectives the challenges of integrating competition law, consumer law and the construction of a European judicial area
Sibony, Anne-Lise ULiege

Scientific conference (2011, April 07)

Collective redress ought to be looked at from several different perspectives: that of competition law, that of consumer law and that of building a European judicial area. This paper looks at the ... [more ▼]

Collective redress ought to be looked at from several different perspectives: that of competition law, that of consumer law and that of building a European judicial area. This paper looks at the challengenges posed by the necessity to hold all three perspective together. [less ▲]

Detailed reference viewed: 53 (7 ULiège)
Peer Reviewed
See detailCollective Retrieval hy Autonomous Rohots
Meyer, Patrick ULiege

Conference (2004)

Detailed reference viewed: 21 (2 ULiège)
See detailCollective spontaneous emission with quantized atomic motion
Damanet, François ULiege; Braun, Daniel; Martin, John ULiege

Scientific conference (2016, May 09)

Detailed reference viewed: 15 (5 ULiège)
Full Text
Peer Reviewed
See detailCollective vortex behaviors: diversity, proximate, and ultimate causes of circular animal group movements
Delcourt, Johann ULiege; Bode, W.F. Nikolaï; Denoël, Mathieu ULiege

in Quarterly Review of Biology (2016), 91(1), 1-24

Ant mill, caterpillar circle, bat doughnut, amphibian vortex, duck swirl, and fish torus are different names for rotating circular animal formations, where individuals turn around a common center. These ... [more ▼]

Ant mill, caterpillar circle, bat doughnut, amphibian vortex, duck swirl, and fish torus are different names for rotating circular animal formations, where individuals turn around a common center. These “collective vortex behaviors” occur at different group sizes from pairs to several million individuals and have been reported in a large number of organisms, from bacteria to vertebrates, including humans. However, to date, no comprehensive review and synthesis of the literature on vortex behaviors has been conducted. Here, we review the state of the art of the proximate and ultimate causes of vortex behaviors. The ubiquity of this behavioral phenomenon could suggest common causes or fundamental underlying principles across contexts. However, we find that a variety of proximate mechanisms give rise to vortex behaviors. We highlight the potential benefits of collective vortex behaviors to individuals involved in them. For example, in some species, vortices increase feeding efficiency and could give protection against predators. It has also been argued that vortices could improve collective decision making and information transfer. We highlight gaps in our understanding of these ubiquitous behavioral phenomena and discuss future directions for research in vortex studies. [less ▲]

Detailed reference viewed: 193 (32 ULiège)
Peer Reviewed
See detailCollectors of Japanese Art in belgium : between exotism and scholarship
Bawin, Julie ULiege

in Oriental Fascination. 1889-1915. The Japonisme in Belgium (2008)

Detailed reference viewed: 42 (10 ULiège)