Pouvoir et consentement : quelques réflexions impressionnistes

in Vrancken, Didier; Dubois, Christophe; Schoenaers, Frédéric (Eds.) Penser la négociation : mélange en hommage à Olgierd Kuty (2008)

L'article confronte deux classiques, "Power" de Steven Lukes et "L'acteur et le système" de Crozier et Friedberg, aux réflexions d'auteurs contemporains comme Beck et Negri sur la nature du pouvoir et son ... [more ▼]

L'article confronte deux classiques, "Power" de Steven Lukes et "L'acteur et le système" de Crozier et Friedberg, aux réflexions d'auteurs contemporains comme Beck et Negri sur la nature du pouvoir et son caractère "immanent". A partir de là, il présente brièvement six propositions sur la nature du pouvoir dans les sociétés démocratiques et le rôle important qu'y joue le consentement. Il termine sur "l'invisibilisation" du pouvoir dans le capitalisme contemporain. [less ▲]

Pouvoir réflecteur de la matière organique dispersée, paléogéographie et tectonique, à la pointe de Puagne (Belgique)

Conference (1990)

Les pouvoirs des chefs d'Etats belge, français et américain dans le processus d'élaboration des lois

in Revue de la Faculté de Droit de l'Université de Liège (2007), 3(3), 391-401

Note visant à comparer les pouvoirs respectifs des chefs d'Etat dans le processus d'élaboration des lois, dans les systèmes belge, français et américain

Les pouvoirs du juge d'appui dans le cadre de la procédure en nomination d'un arbitre

in Revue de Jurisprudence de Liège, Mons et Bruxelles (2008), 42

This article deals with the powers of judge in connection with the appointment of an arbitrator.

Les pouvoirs locaux et la nouvelle réglementation relative aux marchés publics

in Batselé, Didier; Dony, Marianne; Durviaux, Ann-Lawrence (Eds.) et al Les marchés publics à l'aube du XXIème siècle (2000)

Les pouvoirs publics, entre prérogative de puissance publique et activité économique

in Liber Amicorum Jacques Malherbe (2006)

Etude visant à déterminer dans quelle mesure les activités des pouvoirs publics peuvent être soumises aux règles de concurrence, européennes ou nationales

Poverty Alleviation in Developing Countries: The Role of Intermediaries and Transport Costs

Doctoral thesis (2012)

Power indices and the measurement of control in corporate structures

E-print/Working paper (2011)

This paper proposes a review of the use of power indices in the corporate governance literature. It places the emphasis on the game-theoretic aspects of this research, but it also addresses some of the ... [more ▼]

This paper proposes a review of the use of power indices in the corporate governance literature. It places the emphasis on the game-theoretic aspects of this research, but it also addresses some of the key issues linked to the specific field of application. [less ▲]

Power Line conductors self damping : a new approach.

in Proceedings of the 9th International Symposium on Cable Dynamics (2011, October)

Up to now, self damping data generally comes from dynamic tests performed on test spans which length is of the order of some tens of meters. Those tests rely on the assumption that the conductor self ... [more ▼]

Up to now, self damping data generally comes from dynamic tests performed on test spans which length is of the order of some tens of meters. Those tests rely on the assumption that the conductor self damping changes the amplitude of incident and reflected travelling wave. In other words, there are no standing wave within a vibrating conductor and in practice, the amount of self damping is deduced from measurements of vibration amplitudes at adjacent “false vibration nodes”. The corresponding measurements require lots of dexterity and accuracy. This paper investigates the possibility of deducing the self damping properties of power line conductors from a series of tests performed quasi statically on a short prestressed conductor sample. Data recorded by Godinas [1] on 4 m long prestressed conductor samples has been used as an input (the conductors used are made of aluminium alloy, type AMS). This data was obtained by applying a cyclic quasi-static bending moment in the middle of the conductor sample and recording the corresponding strains. The experiment was reproduced at several prestress levels. A mining and analysis of this data has been performed so that in a first time the relationship between moment and curvature can be adequately defined. Then the corresponding internal work has been computed analytically (per integration). Finally a formulation for the self damping per unit length is proposed as a function of the antinode amplitude of vibration, frequency, conductor tension, bending stiffness, mass per unit length plus a special parameter called “b”. The latter parameter has the dimension of energy [J]. The corresponding results are found to be consistent with those deduced from the widely used “power law”, using Noiseux’s exponents [2, 3]. Also, a simplified version of the formula shows that the sensitivity of the self damping to the vibration amplitude, frequency and tension is comparable to that found by others authors using another self damping measurement technique [1], but with the difference that in this case, the exponents for frequency, amplitude and tension are integers, fully justified by the physics behind the phenomenon of damping. [less ▲]

Power line dynamic rating: forecasting potential period of low wind speed is crucial

Conference (2012, September)

The replacement and building of new electrical power lines (50 000 km in Europe) can’t cope with the growth of RES development in EU for the ten upcoming years. New solutions have to be found to manage ... [more ▼]

The replacement and building of new electrical power lines (50 000 km in Europe) can’t cope with the growth of RES development in EU for the ten upcoming years. New solutions have to be found to manage such power transmission needs. Dynamic Line Rating (DLR) systems are part of the global solution. They allow to increase the power line capacity by an average 20% over the static rating (which is defined as the maximum current-carrying capacity as designed). The ampacity or thermal rating, is calculated thanks to (i) sensors installed directly on the power line conductors, like Ampacimon, (ii) weather data, and (iii) standard thermal models (IEEE, CIGRE). However, in order to be fully effective and to allow an efficient use of assets, ampacity calculation in real-time is not enough; it has to be forecasted as well. Beyond 6h-forecast, weather forecasts are necessary to compute the line ampacity up to two days ahead, as needed by network operation. As wind convection has a major impact on conductor cooling, even low wind speeds (2m/s up to 5m/s) allow a huge ampacity increase (the actual rating can be doubled). Therefore, low wind speed forecast up to 2-days ahead finds a major application in dynamic rating of overhead transmission and distribution lines. [less ▲]