Sur le système aplanétique de deux miroirs dans le cas d'un point objet situé à distance finie

in Revue d'Optique Théorique et Instrumentale (1934), 13

Sur le tracé cardiographique et la nature de la systole ventriculaire

in Bulletin de l'Académie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique. Sciences (1887), XIII

Sur les atmosphères stellaires contenant ou non de l'oxygène

in Bulletin de la Classe des Sciences. Académie Royale de Belgique (1934), 20

Sur les bandes de CH et CN dans les étoiles des clases de F0 A G5

in Association Française pour l'Avancement des Sciences (Ed.) Compte-rendu de la 56e session, Bruxelles 1932 (1932)

Sur les chemins de l'émancipation. Le pari de l'égalité

in Martin, Céline (Ed.) Aux livres, citoyens ! Les partenariats en questions (2010)

Sur les conditions dans lesquelles certains corps prennent la texture schisteuse

in Annales de la Société Géologique de Belgique. Mémoires (1902), XXIX

Annales de la Societe geologique de Belgique; memoires (1902), 29, 49-60, 6(ii), 257-61; SciFinder (Chemical Abstracts Service: Columbus, OH); https://scifinder.cas.org (accessed July 8, 2010). Earlier ... [more ▼]

Annales de la Societe geologique de Belgique; memoires (1902), 29, 49-60, 6(ii), 257-61; SciFinder (Chemical Abstracts Service: Columbus, OH); https://scifinder.cas.org (accessed July 8, 2010). Earlier investigations (Bulletin of the Royal Academy of Bolgique [3] 35. 31-34. 1898) it had resulted in that pressure alone is not sufficient, in order to produce foliation of rocks or solid bodies but that two conditions must be fulfilled: in homogeneity and one-sided pressure. First by the elementary analysis it was proven that the layer surfaces of a black slate are substantially more carbon-rich, as the inner of the layers between them. a sediment made of intermittent layers of clay and humic substances under pressure became a thin petalled mass with a texture of a usual slate. For the formation of transverse foliation, lead sheets covered with fat were used, as well as cubes of the mentioned clay-humus mixture, which were through-pressed by a square steel can with slit ground. In this case the foliation was parallel to the walls of the opening, thus vertical to the direction of the pressure exerted by the pin on the mass. Wet clay, as well as metallic iron also take on a slaty texture by the same treatment. From this experiments author cocludes that slaty texture is not the direct result of pressure, even if this pressure caused a liquefaction or a rearrangement of the mass. The mutual attraction of the pressed particles firstly does not occur in the direction of pressure and finally, if the pressure goes beyond a certain limit, vertical to that one. At hydrostatic pressure at all no change of the direction of attraction of the pressed particles takes place. The conditions for the slaty texture of a substance are inhomogeneous pressure in all directions and lack of homogeneity, and it is unimportant, whereby they are fulfilled. Reprinted with the permission of the American Chemical Society. Copyright © 2010. American Chemical Society (ACS). All Rights Reserved. [less ▲]

Sur les difficultés d'application du standstill dans la passation des marchés publics

in Revue de la Faculté de Droit de l'Université de Liège (2006), 1-2

Sur les ensembles paradoxaux : de Banach-Tarski à Dougherty-Foreman

Master's dissertation (2011)

Sur les espaces de Hölder ponctuels généralisés

Conference (2011, September 06)

We study a generalization of the well-known pointwise Hölder spaces. This generalization is based on another generalization of the (global) Hölder spaces (that we already studied and exposed on another ... [more ▼]

We study a generalization of the well-known pointwise Hölder spaces. This generalization is based on another generalization of the (global) Hölder spaces (that we already studied and exposed on another seminar). We show three main characterizations of these spaces, such as a characterization by the decay of the wavelet coefficients of their elements. [less ▲]

Sur les éthers composés de l'acide hyposulfureux et sur quelques bisulfures organiques

in Bulletin de l’Académie Royale des Sciences, des Lettres et des Beaux-arts de Belgique. Sciences. 3e série (1882), IV(7), 29-37