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See detailDesign optimization of large-size format edge-lit light guide units
Hastanin, Juriy ULg; Lenaerts, Cedric ULg; Fleury-Frenette, Karl ULg

in Proceedings of SPIE; SPIE 2016 Photonics Europe (2016, April)

In this paper, we present an original method of dot-pattern generation dedicated to design optimization of large-size format ELBUs (Edge-Lit Light Guide Unit), where the number of dots greatly exceeds the ... [more ▼]

In this paper, we present an original method of dot-pattern generation dedicated to design optimization of large-size format ELBUs (Edge-Lit Light Guide Unit), where the number of dots greatly exceeds the maximum allowable number of optical objects supported by most common ray-tracing software. In the proposed method, in order to simplify the computational problem, an original optical system is replaced by an equivalent one. Accordingly, the original dot pattern is splitted into multiple small sections. Then, these sections are replaced by equivalent cells with continuous diffusing film. After that, we adjust the TIS (Total Integrated Scatter) two-dimensional distribution over the grid of equivalent cells, using an iterative optimization procedure. Finally, the obtained optimal TIS distribution is converted into the dot size distribution by applying an appropriate conversion rule. An original semi-empirical equation dedicated to rectangular large-size LGPs (Light Guide Plate) is proposed for the initial guess of the TIS distribution. It allows significantly reducing the time needed to dot pattern optimization. [less ▲]

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See detailLe hate speech et la liberté d'expression dans la jurisprudence américaine sous l'angle de la philosophie du langage
Thirion, Nicolas ULg; Vandenbulke, Antoine ULg

in Auteurs & Media (2016)

Analysis of landmark US Supreme Court cases on hate speech evaluated in terms of philosophy of language, particularly through the works of J.L. Austin and Judith Butler.

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See detailreactive gases in the chemistry climate model ECHAM6-HAMMOZ
Schultz, Martin; Taraborrelli, Domenico; Stadtler, Scarlet et al

Conference (2016, April)

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See detailThe Impact of Vulnerability and Resilience to Environmental Changes on Mobility Patterns in West Africa
Zickgraf, Caroline ULg; Vigil Diaz Telenti, Sara ULg; de Longueville, Florence et al

Report (2016)

From the Sahel to the coast, West Africa is experiencing a variety of climate change impacts, including sea level rise, soil salinization, floods, drought, and desertification, while simultaneously ... [more ▼]

From the Sahel to the coast, West Africa is experiencing a variety of climate change impacts, including sea level rise, soil salinization, floods, drought, and desertification, while simultaneously suffering from other forms of environmental degradation. Together, these environmental changes are significantly influencing migration patterns in and out of West Africa. This paper seeks to analyze vulnerability and resilience to environmental changes as they affect and are affected by mobility patterns in the region. We assert that the impact of environmental changes cannot be isolated from other political, social, economic, and demographic pressures that together drive human mobility. In a region where natural resources form the foundation of livelihoods and food security (fishing and agriculture), the relationship between environmental changes and socioeconomic vulnerabilities is of particular concern. This paper therefore draws from four distinct case studies to grasp the variegated and cumulative vulnerability and resilience among local populations as they relate to internal and intraregional migration. [less ▲]

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See detailSuccess SMB:Leadership Andr Multidimensional Management. An exploratoire Study.
Robert, Jocelyne ULg

E-print/Working paper (2016)

Montre l'importance du leadership comme facteur de succès des PME en croissance rapide (gazelles ). Étude exploratoire.

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See detailContrasting Arctic and Antarctic sea ice temperatures
Vancoppenolle, M.; Raphael, M.; Rousset, C. et al

Conference (2016, April)

Sea ice temperature affects the sea ice growth rate, heat content, permeability and habitability for ice algae. Large-scale simulations with NEMO-LIM suggest large ice temperature contrasts between the ... [more ▼]

Sea ice temperature affects the sea ice growth rate, heat content, permeability and habitability for ice algae. Large-scale simulations with NEMO-LIM suggest large ice temperature contrasts between the Arctic and the Antarctic sea ice. First, Antarctic sea ice proves generally warmer than in the Arctic, in particular during winter, where differences reach up to ∼10◦C. Second, the seasonality of temperature is different among the two hemispheres: Antarctic ice temperatures are 2-3◦C higher in spring than they are in fall, whereas the opposite is true in the Arctic. These two key differences are supported by the available ice core and mass balance buoys temperature observations, and can be attributed to differences in air temperature and snow depth. As a result, the ice is found to be habitable and permeable over much larger areas and much earlier in late spring in the Antarctic as compared with the Arctic, which consequences on biogeochemical exchanges in the sea ice zone remain to be evaluated. [less ▲]

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See detailPrevalence of frailty among nursing home, according to different operational definitions.
Buckinx, Fanny ULg; Reginster, Jean-Yves ULg; GILLAIN, Sophie ULg et al

in Osteoporosis International (2016, April), 27(Supplement 1), 216-217

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See detailTen years of Denosumab (DMAB) treatment in postmenopausal women with osteoporosis. Results from the FREEDOM Extension trial.
Bone, H.G.; Brandi, M.L.; Brown, J.P. et al

in Osteoporosis International (2016, April), 27(Supplement 1), 135-136

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See detailPhysical and muscle performances among elderly nursing home residents.
Buckinx, Fanny ULg; Reginster, Jean-Yves ULg; Croisier, Jean-Louis ULg et al

in Osteoporosis International (2016, April), 27(Supplement 1), 217

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See detailEnglish translation and cross-cultural adaptation of the SarQuoL® questionnaire.
Beaudart, Charlotte ULg; Edwards, M.; Dennison, E.M. et al

in Osteoporosis International (2016, April), 27(Supplement 1), 221-222

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See detailBrain-derived neurotrophic factor (BDNF) in normal healthy and hemodialyzed populations.
CAVALIER, Etienne ULg; CARLISI, Ignazia ULg; KOVACS, Stéphanie ULg et al

in Osteoporosis International (2016, April), 27(Supplement 1), 512

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See detailAge-standardized quality of life after hip or knee arthoplasty.
Neuprez, Audrey ULg; KURTH, William ULg; THIRION, Thierry ULg et al

in Osteoporosis International (2016, April), 27(Supplement 1), 541-542

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See detailLes théories représentationnelles de l'esprit
Gauvry, Charlotte ULg

Conference (2016, April)

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See detailCO2-based sustainable polymers: from CO2-sourced monomers to low CO2 emission foamed materials
Grignard, Bruno ULg; Gennen, Sandro ULg; Alves, Margot ULg et al

Conference (2016, April)

Due to concerns about the climate change combined with the decrease of fossil resources, the use of CO2 as a C1 feedstock for producing added value chemicals and materials has become a huge challenge in ... [more ▼]

Due to concerns about the climate change combined with the decrease of fossil resources, the use of CO2 as a C1 feedstock for producing added value chemicals and materials has become a huge challenge in academic laboratories and in industry. The coupling of CO2 with epoxide has emerged as one of the most promising way to convert CO2 into cyclic carbonates finding application as green solvents or electrolyte for batteries. Interestingly, these cyclic carbonates can also be valorised as monomers to produce new non-isocyanate polyurethanes by step-growth polymerization with amines. Polyurethane (PU) is one of the most important polymers in our everyday life with numerous applications such as thermosets, thermoplastics, elastomers, adhesives, sealants, coatings, rigid and flexible foams for wellness or acoustic and/or thermal insulation. In this talk, we will discuss the preparation of all green bio- and CO2-sourced non-isocyanate polyurethane (NIPU) microcellular foams with thermal insulation properties by using an eco-efficient process based on the supercritical carbon dioxide (scCO2) foaming technology. This talk will be divided in three sections: The synthesis of CO2-sourced cyclic carbonates by coupling CO2 with epoxides using a new highly-efficient bicomponent homogeneous organocatalyst combining the use of an ammonium salt as the catalyst and a fluorinated hydrogen bond donor activator that allows the fast and solvent-free coupling of CO2 with (biosourced) epoxides under mild experimental conditions. The synthesis of (bio- and) CO2-sourced isocyanates-free PUs by melt step-growth copolymerization, eliminating the toxicological issues associated to the conventional synthesis of polyurethanes from diols and isocyanates. The foaming of NIPUs by exploiting the scCO2 foaming technology. By finely choosing the appropriate CO2 impregnation and foaming conditions, thermally insulating CO2-blown microcellular NIPUs foams were produced. [less ▲]

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See detailBrentano or Husserl? Intentionality, Consciousness, and Self-consciousness in Contemporary Phenomenology of Mind
Boccaccini, Federico ULg

in Archivio di Filosofia (2016), LXXXIII(3), 189-202

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See detailThermal and quantum depletion of superconductivity in narrow junctions created by controlled electromigration
Silhanek, Alejandro ULg

Conference (2016, April)

Superconducting nanowires have been, for years now, a topic of great interest due to their potential application in single photon detectors and as interconnects in circuits proposed for quantum computing ... [more ▼]

Superconducting nanowires have been, for years now, a topic of great interest due to their potential application in single photon detectors and as interconnects in circuits proposed for quantum computing. In this context, it is of fundamental importance to better understand the undesired and harmful appearance of thermal and quantum fluctuations of the superconducting order parameter as a function of the wire width. In this presentation, we explore in-situ controlled electromigration (EM) to fabricate nano-constrictions immersed in cryogenic environment. We demonstrate that a transition from thermally assisted phase slips (TAPS) to quantum phase slips (QPS) takes place when the effective cross section becomes smaller than ~150 nm^2. In the regime dominated by QPS the nanowire loses completely its capacity to carry current without dissipation, even at the lowest possible temperature. We also demonstrate that the bow-tie shaped constrictions exhibit a negative magnetoresistance at low magnetic fields which can be attributed to the suppression of superconductivity in the contact leads. Strikingly, the detrimental effect caused by the repeated EM can be healed by simply inverting the current direction. These findings reveal perspectives of the proposed fabrication method for exploring various fascinating superconducting phenomena in atomic size constrictions. [less ▲]

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See detailSingle molecule force spectroscopy on oligorotaxane foldamers
Sluysmans, Damien ULg; Stoddart, J. Fraser; Duwez, Anne-Sophie ULg

Conference (2016, April)

Detailed reference viewed: 4 (1 ULg)