Last 7 days
Bookmark and Share    
Full Text
See detailA Quinean-Inspired Interpretation of Meinong's Theory of Objects
Zincq, Aurélien ULiege

in Dewalque, Arnaud; Raspa, Venanzio (Eds.) Psychological Themes in the School of Meinong (2018)

Detailed reference viewed: 33 (1 ULiège)
Full Text
Peer Reviewed
See detailStructural and optoelectronic properties of SnO2 thin films doped by group-1A elements
Benhebal, Hadj; Benrabah, Bedhiaf; Ammari, Aek et al

in Surface Review and Letters (2018), 25

This paper presents the results of an experimental work devoted to the synthesis and the characterization of tin dioxide (SnO2 Þ thin layers doped with group-IA elements (Li, Na and K). The materials were ... [more ▼]

This paper presents the results of an experimental work devoted to the synthesis and the characterization of tin dioxide (SnO2 Þ thin layers doped with group-IA elements (Li, Na and K). The materials were synthesized by the sol–gel method and deposited by dip-coating, using tin (II) chloride dihydrate as a source of tin and absolute ethyl alcohol as solvent. Thin ¯lms prepared were characterized by several techniques including X-ray di®raction (XRD), scanning electron microscopy (SEM), infrared spectroscopy (IR), visible and ultraviolet spectroscopy and complex impedance method. The results obtained show that the materials kept their tetragonal rutile structure with preferred orientation of (101), whereas doping leads to a reduction of their energy band gap. The complex impedance analysis suggests that the di®erent processes occurring at the electrode interface are modeled by an electrical circuit not a®ected by the doping. [less ▲]

Detailed reference viewed: 26 (3 ULiège)
Full Text
Peer Reviewed
See detail« Proudhon, le premier pragmatiste? Petite histoire de l’autre sociologie »
Frère, Bruno ULiege

E-print/Working paper (2018)

Detailed reference viewed: 18 (3 ULiège)
Full Text
Peer Reviewed
See detailFrom justification to phenomenology The moral Imaginary of Solidarity Economy
Frère, Bruno ULiege

E-print/Working paper (2018)

Detailed reference viewed: 12 (1 ULiège)
Full Text
Peer Reviewed
See detailBeyond Critical Sociology Bourdieu’s Positivism and the Sociology of Critique
Frère, Bruno ULiege

E-print/Working paper (2018)

Detailed reference viewed: 10 (1 ULiège)
See detailSigismondo D’India. Correspondances, préfaces, épîtres dédicatoires et autres documents
Morales, Jorge ULiege

Book published by Classiques Garnier (2018)

Cet ouvrage présente une traduction analytique de toutes les traces écrites connues portant sur l’œuvre et la carrière musicale de Sigismondo D’india (c. 1582-c. 1629) : correspondances, préfaces, épîtres ... [more ▼]

Cet ouvrage présente une traduction analytique de toutes les traces écrites connues portant sur l’œuvre et la carrière musicale de Sigismondo D’india (c. 1582-c. 1629) : correspondances, préfaces, épîtres dédicatoires, imprimés anciens et autres documents d’archive. C’est en prenant comme point de départ l’écrit en tant que discours et marqueur culturel que se dévoilent la pensée, l’épaisseur historique, le style et l’identité de la société de cour dans laquelle a vécu l’un des compositeurs majeurs de l’époque de Monteverdi. [less ▲]

Detailed reference viewed: 13 (0 ULiège)
Full Text
See detailChronique musicale 2017
Morales, Jorge ULiege

in Seizième siècle (2018), XIV

Detailed reference viewed: 16 (0 ULiège)
See detailDevoirs d'histoire de la musique XVIIe siècle
Morales, Jorge ULiege

Learning material (2018)

Detailed reference viewed: 14 (0 ULiège)
Full Text
Peer Reviewed
See detailInteractions between Zn2+ or ZnO with TiO2 to produce an efficient photocatalytic, superhydrophilic and aesthetic glass
Léonard, Géraldine ULiege; Pàez Martinez, Carlos ULiege; Ramirez, Alfonso et al

in Journal of Photochemistry and Photobiology A : Chemistry (2018), 350

Zinc was coupled with titanium dioxide using different methods. SiO2 and Zn-SiO2 doped TiO2 films, on the one hand, and Zn doped TiO2 on the other hand, have been produced using controlled sol-gel ... [more ▼]

Zinc was coupled with titanium dioxide using different methods. SiO2 and Zn-SiO2 doped TiO2 films, on the one hand, and Zn doped TiO2 on the other hand, have been produced using controlled sol-gel processes by alcoholic, cogelation and aqueous ways. From these syntheses, films were deposited on soda lime glass. These samples were compared to ZnO samples but also to bilayer samples constituting one layer of TiO2 and one layer of ZnO. The physico-chemical properties of the films were characterized by grazing-incidence X-ray diffraction, profilometry and UV-Vis absorption analyses. The photocatalytic activity has been evaluated from the degradation of methylene blue under UV-A light, from the degradation of p-nitrophenol under visible light and from the degradation of H2O2 under halogen light (UV-A + visible light). Superhydrophilicity was evaluated from contact angle measurement after UV exposition and also from hysteresis effects. Finally, a haze measurement was performed to evaluate the impact of the coating on the aesthetic property of the coated glass. Aqueous films have better photocatalytic activity and superhydrophilicity than samples from alcoholic synthesis. The crystallization of the sample appears to be one key factor: alcoholic films required calcination to ensure the crystallization of TiO2, but the alkali migration from the glass support prevents this crystallisation, while aqueous synthesis promotes crystallized particles at low temperatures without alkali interference. It appears that the relative activity from one sample to another depends on the nature of the illumination and on the nature of the molecule to be degraded. Nevertheless, the sample with ZnO layer deposited on first TiO2 layer (ZnO 500 Alc/TiO2 100 AQ) composite is found to be the best sample, maintaining a high hydrophilicity similar to TiO2 and a good activity. [less ▲]

Detailed reference viewed: 17 (3 ULiège)
Peer Reviewed
See detailEdouard Rolin-Jaequemyns (1863-1936). Juriste belge
Genin, Vincent ULiege

in Académie royale de Belgique (Ed.) Nouvelle biographie nationale (vol. 14) (2018)

Detailed reference viewed: 20 (0 ULiège)
Peer Reviewed
See detailHenry Solvyns (1817-1894). Diplomate belge
Genin, Vincent ULiege

in Académie royale de Belgique (Ed.) Nouvelle biographie nationale (vol. 14) (2018)

Detailed reference viewed: 19 (0 ULiège)
Full Text
Peer Reviewed
See detailKarstic Systems in Eastern Belgium: Remouchamps and Noû Bleû
Peeters, Alexandre ULiege; Ek, Camille ULiege

in Demoulin, Alain (Ed.) Landscapes and Landforms of Belgium and Luxembourg (2018)

Belgium is characterised by a wide variety of rocks, including carbonate formations, which are significantly represented in eastern Belgium. Among those formations, Devonian and Carboniferous carbonates ... [more ▼]

Belgium is characterised by a wide variety of rocks, including carbonate formations, which are significantly represented in eastern Belgium. Among those formations, Devonian and Carboniferous carbonates display the most developed karstic features, as illustrated by the two cave systems presented in this chapter. Although both systems are water caves, they differ in many ways. The Remouchamps Cave, developed in the Upper Devonian limestones, is a touristic cave, while the Noû Bleû Cave, developed in the Carboniferous carbonates, is a brand new discovery still under exploration. The two systems are of scientific interest and contain many deposits (speleothems and detrital sediments) providing records of past environmental changes and paleoclimates. Beside the Quaternary dynamics, the present-day dynamics can be highlighted within the karstic basins that encompass the two cave systems. The generation or reactivation of sinkholes and swallow holes is often favoured or triggered by human activity. Furthermore, the two basins offer several good examples of human interaction with karst environments, not only in terms of karstic constraints for humans but also as a resource that must be preserved. [less ▲]

Detailed reference viewed: 12 (0 ULiège)
Full Text
Peer Reviewed
See detailKing and Pharaoh: Religious Encounters and the Ruler Cult in Ptolemaic Egypt
Caneva, Stefano ULiege

in Beyond the Nile: Egypt and the Classical World (2018)

Detailed reference viewed: 49 (1 ULiège)
Full Text
Peer Reviewed
See detailA fully coupled hydro-mechanical model for the modeling of coalbed methane recovery
Bertrand, François ULiege; Cerfontaine, Benjamin ULiege; Collin, Frédéric ULiege

in Natural Gas science and Engineering (2018)

Most coal seams hold important quantities of methane which is recognized as a valuable energy resource. Coal reservoir is considered not conventional because methane is held adsorbed on the coal surface ... [more ▼]

Most coal seams hold important quantities of methane which is recognized as a valuable energy resource. Coal reservoir is considered not conventional because methane is held adsorbed on the coal surface. Coal is naturally fractured, it is a dual-porosity system made of matrix blocks and cleats (i.e fractures). In general, cleats are initially water saturated with the hydrostatic pressure maintaining the gas adsorbed in the coal matrix. Production of coalbed methane (CBM) first requires the mobilization of water in the cleats to reduce the reservoir pressure. Changes of coal properties during methane production are a critical issue in coalbed methane recovery. Indeed, any change of the cleat network will likely translate into modifications of the reservoir permeability. This work consists in the formulation of a consistent hydro-mechanical model for the CBM production modeling. Due to the particular structure of coal, the model is based on a dual-continuum approach to enrich the macroscale with microscale considerations. Shape factors are employed to take into account the geometry of the matrix blocks in the mass exchange between matrix and fractures. The hydro-mechanical model is fully coupled. For example, it captures the sorption-induced volumetric strain or the dependence of permeability on fracture aperture, which evolves with the stress state. The model is implemented in the finite element code Lagamine and is used for the modeling of one production well. A synthetic reservoir and then a real production case are considered. To date, attention has focused on a series of parametric analyses that can highlight the influence of the production scenario or key parameters related to the reservoir. [less ▲]

Detailed reference viewed: 160 (11 ULiège)
Full Text
Peer Reviewed
See detailHow does STICS crop model simulate crop growth and productivity under shade/shaded conditions
Artru, Sidonie ULiege; Dumont, Benjamin ULiege; Ruget, Francois et al

in Field Crops Research (2018)

Detailed reference viewed: 25 (3 ULiège)