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
Peer Reviewed
See detailFirst palynological record of the Silurian/Devonian boundary in the San Juan Precordillera, Argentina
Garcia Muro, V.J.; Rubinstein, C.V.; Steemans, Philippe ULg

Conference (2014)

Detailed reference viewed: 63 (3 ULg)
Full Text
Peer Reviewed
See detailFirst pilot trial of the STAR-Liege protocol for tight glycemic control in critically ill patients
Penning, Sophie ULg; Le Compte, Aaron J.; Moorhead, Katherine T. et al

in Computer Methods & Programs in Biomedicine (2011)

Detailed reference viewed: 16 (8 ULg)
Full Text
Peer Reviewed
See detailFirst practical implementation of the component method to joints in tubular construction
Weynand, K.; Busse, E.; Jaspart, Jean-Pierre ULg

in Proceedings of the 11th International Symposium on Tubular Structures (2006)

Detailed reference viewed: 61 (1 ULg)
Full Text
Peer Reviewed
See detailFirst principle study of nanodiamond optical and electronic properties
Raty, Jean-Yves ULg; Galli, G.

in Computer Physics Communications (2005), 169(1-3), 14-1919

Nanometer sized diamond has been found in meteorites, proto-planetary nebulae and interstellar dusts, as well as in residues of detonation and in diamond films. Remarkably, the size distribution of ... [more ▼]

Nanometer sized diamond has been found in meteorites, proto-planetary nebulae and interstellar dusts, as well as in residues of detonation and in diamond films. Remarkably, the size distribution of diamond nanoparticles appears to be peaked around 2-5 nm, and to be largely independent of preparation conditions. Using ab-initio calculations, we have shown that in this size range nanodiamond has a fullerene-like surface and, unlike silicon and germanium, exhibits very weak quantum confinement effects. We called these carbon nanoparticles bucky-diamonds: their atomic structure, predicted by simulations, is consistent with many experimental findings. In addition, we carried out calculations of the stability of nanodiamond, which provided a unifying explanation of its size distribution in extra-terrestrial samples, and in ultra-nano crystalline diamond (UNCD) films. [All rights reserved Elsevier] [less ▲]

Detailed reference viewed: 28 (0 ULg)
Full Text
Peer Reviewed
See detailFirst Principles Explanation of the Positive Seebeck Coefficient of Lithium
Xu, Bin ULg; Verstraete, Matthieu ULg

in Physical Review Letters (2014), 112

Detailed reference viewed: 108 (10 ULg)
Full Text
See detailFirst principles study of heavily doped full Heusler Fe2YZ for high thermoelectric power factor
Lemal, Sébastien ULg; Ghosez, Philippe ULg; Bilc, Daniel ULg

Poster (2016, May 02)

Using a combination of first-principles calculations based on density functional theory and Boltzmann semi-classical transport theory, we investigate the properties of heavily $n$-type doped full Heusler ... [more ▼]

Using a combination of first-principles calculations based on density functional theory and Boltzmann semi-classical transport theory, we investigate the properties of heavily $n$-type doped full Heusler Fe2YZ1-xAx compounds. Using a supercell approach and including explicitly the dopant impurities, we recover in some cases giant thermoelectric power factors as previously predicted under doping within the rigid band approximations [Phys. Rev. Lett. 114, 136601 (2015)]. In other cases, however, we highlight that the system evolves toward a ferromagnetic half-metallic ground state so that the power factor is strongly modified. We rationalize the appearance of this magnetic instability, showing that it consistent with the Stoner model. The uncovered properties of the heavily doped phases of the studied Fe2YZ1-xAx compounds appear promising for Seebeck and spin-Seebeck applications. [less ▲]

Detailed reference viewed: 38 (4 ULg)
Peer Reviewed
See detailFirst Principles Study of the lattice instabilities in BaxSr1-xTiO3
Ghosez, Philippe ULg; Desquesnes, D.; Gonze, X. et al

in AIP Conference Proceedings (2000), 535

Detailed reference viewed: 13 (1 ULg)
Full Text
See detailFirst principles study of the structural, electronic and thermoelectric properties of misfit cobaltite
Lemal, Sébastien ULg; Varignon, Julien ULg; Bilc, Daniel ULg et al

Poster (2014, December 03)

In the context of environmental issues that become more and more prevalent in our society, there has been recently an increase of interest for thermoelectric (TE) materials, which have the property to ... [more ▼]

In the context of environmental issues that become more and more prevalent in our society, there has been recently an increase of interest for thermoelectric (TE) materials, which have the property to convert heat into electricity, and vice-versa. Although they do not display exceptional thermopower (in comparison to best thermoelectric like bismuth telluride), oxide materials have attracted some attention for high-temperature TE applications, due to their high stability. Amongst them, CoO2-layered compounds were proposed as good p-type TE candidates. Still, these compounds have been only poorly characterized both theoretically and experimentally. In this work we report a first-principles study of misfit calcium cobaltite (Ca2CoO3)(CoO2)1.618 based on density functional theory and an hybrid functional. The computed structural, electronic and magnetic properties match well the avalaible experimental data. Then the thermoelectric properties can be deduced using the Boltzmann transport formalism within the constant relaxation time approximation and will be discussed. [less ▲]

Detailed reference viewed: 68 (11 ULg)
Full Text
See detailFirst prototypes of vortex retarders obtained by polarization holography
Piron, Pierre ULg; Blain, Pascal ULg; Décultot, Marc ULg et al

in Proceedings of SPIE (2014, May), 9099

This paper will present the first prototypes of vortex retarders made of photo-orientable liquid crystals polymers recorded without mechanical action using only polarization holography. Vortex retarders ... [more ▼]

This paper will present the first prototypes of vortex retarders made of photo-orientable liquid crystals polymers recorded without mechanical action using only polarization holography. Vortex retarders are birefringent plates characterized by a uniform phase retard and a rotation of their fast axis along their center. Liquid crystals are anisotropic molecules possessing birefringent properties. They are locally orientable and their orientation defines the fast axis orientation of the retarder. Their alignment depends on the local orientation of the recording electric field. The superimposition of several polarized beams will be used to shape the electric field to achieve the recording of vortex retarders. The mathematical aspects of the superimposition process, as well as several numerical simulations are exposed. Finally, the first prototypes are presented, characterized and compared to the numerical simulations. [less ▲]

Detailed reference viewed: 26 (8 ULg)
Full Text
Peer Reviewed
See detailFirst record of cryptospores in post-Hirnantian (latest Ordovician-early Silurian) sediments from Ethiopia
Brocke, R.; Bussert, R.; Lebenie, D. et al

Conference (2016, April 15)

Detailed reference viewed: 11 (3 ULg)
Peer Reviewed
See detailFirst record of Demosponge spicules in a late Devonian stromatoporoid basal skeleton (Frasnian, Belgium).
Reitner; Da Silva, Anne-Christine ULg; Kershaw et al

in Abstracts: Ninth world sponge conference 2013 (2013)

Detailed reference viewed: 25 (3 ULg)
Full Text
Peer Reviewed
See detailFirst record of Rellimia Leclercq & Bonamo (Aneurophytales) from Gondwana, with comments on the earliest lignophytes.
Gerrienne, Philippe ULg; Meyer-Berthaud, Brigitte; Lardeux, Hubert et al

in Special Publication - Geological Society of London (2010), 339

Detailed reference viewed: 42 (2 ULg)
Full Text
Peer Reviewed
See detailFirst record of the 'bathroom mothmidge' Clogmia albipunctata, a conspicuous element of the Belgian fauna that went unnoticed (Diptera: Psychodidae)
Boumans, Louis; Zimmer, Jean-Yves ULg; Verheggen, François ULg

in Phegea (2009), 37(4), 153-160

The 'bathroom fly' Clogmia albipunctata (Williston, 1893) (Diptera: Psychodidae) is a cosmopolitan species that is commonly found in bathrooms, kitchens, sewage treatment plants and compost heaps. Of ... [more ▼]

The 'bathroom fly' Clogmia albipunctata (Williston, 1893) (Diptera: Psychodidae) is a cosmopolitan species that is commonly found in bathrooms, kitchens, sewage treatment plants and compost heaps. Of circumtropical origin, the species probably spread to synanthropic habitats in northern and central Europe during the past decades. The first documented findings in Belgium are discussed, together with general information on the biology and recognition of the species. [less ▲]

Detailed reference viewed: 129 (23 ULg)
Full Text
Peer Reviewed
See detailFirst record of the mangrove palm Nypa from the northeastern Ebro basin, Spain: with taphonomic criteria to evaluate the drifting duration
Moreno-Dominguez, Rafael; Cascales-Miñana, Borja ULg; Ferrer, Javier et al

in Geologica Acta (2016), 14(2), 101-111

Detailed reference viewed: 15 (0 ULg)
Full Text
Peer Reviewed
See detailFirst report od a fatal autochtonous canine Angyostrongylus vasorum infection in Belgium
Jolly, Sandra ULg; Lempereur, Laetitia ULg; Caron, Yannick ULg et al

in Parasitology International (2015), 64(1),

Detailed reference viewed: 32 (5 ULg)
Full Text
Peer Reviewed
See detailFirst report of a fatal autochthonous canine Angiostrongylus vasorum infection in Belgium
Jolly, Sandra ULg; Poncelet, Luc; Lempereur, Laetitia ULg et al

in Parasitology International (2014)

Detailed reference viewed: 17 (6 ULg)
Full Text
Peer Reviewed
See detailFirst report of banana mild mosaic virus infecting plantain in Ivory Coast
Kouadio, Kouakou Théodore ULg; Agneroh, Thérèse Atcham; De Clerck, Caroline ULg et al

in Plant Disease (2013), 97(5), 693

Detailed reference viewed: 73 (12 ULg)
Full Text
Peer Reviewed
See detailFirst report of cucurbit aphid-borne yellows virus in Tunisia causing yellows on five cucurbitacious species
Mnari Hattab, M.; Kummert, J.; Roussel, S. et al

in Plant Disease (2005), 89

Detailed reference viewed: 35 (0 ULg)