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See detailProbabilistic Reliability Management Approach and Criteria for Power System Short-term Operational Planning
Karangelos, Efthymios ULiege; Wehenkel, Louis ULiege

in Probabilistic Reliability Management Approach and Criteria for Power System Short-term Operational Planning (in press)

This paper develops a probabilistic decision making framework for reliability management in the short-term operational planning context. We build upon our recent work, which proposed a probabilistic ... [more ▼]

This paper develops a probabilistic decision making framework for reliability management in the short-term operational planning context. We build upon our recent work, which proposed a probabilistic reliability management approach and criterion (RMAC) for the latest decision making opportunity of real-time system operation. Here, we transpose the RMAC to the preceding problem instance of short-term operational planning, wherein i) risk is aggravated by the uncertainty on power injections and weather conditions, and, ii) the problem scope concerns choosing `strategic' actions (e.g., starting additional generating units, granting outage requests for maintenance, etc.) to facilitate decision making during the forthcoming real-time system operation. To anticipate on the latter, we formalize the notion of a real-time `proxy' as a simplified model of the real-time decision making context, adequately accurate for the purpose of operational planning decision making. Stating a first proposal for such a proxy, we mathematically formulate the RMAC for short-term operational planning as a multi-stage stochastic decision making problem and demonstrate its main features by case studies on a modified version of the single area IEEE RTS-96 system. [less ▲]

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See detail"Gens" isiaque et intailles. L’envers de la médaille
Veymiers, Richard ULiege

in Iossif, Panagiotis; de Callataÿ, François; Veymiers, Richard (Eds.) Greek Coins and their Images: "Noble" Issuers, "Humble" Users? (in press)

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See detail"Die Komödie muss aus werden". Schwellenbewusstsein und Selbstreflexivität bei Arthur Schnitzler: "Die kleine Komödie" von 1895
Küpper, Achim ULiege

in Liebrand e.a., Claudia (Ed.) Vielheit und Einheit der Germanistik weltweit: Kongressakten. Sektionen 47, 60 und 34 (in press)

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See detailExozodiacal clouds: Hot and warm dust around main sequence stars
Kral, Quentin; Krivov, Alexander V.; Defrere, Denis ULiege et al

in Astronomical Review (in press)

A warm/hot dust component (at temperature $>$ 300K) has been detected around $\sim$ 20% of stars. This component is called "exozodiacal dust" as it presents similarities with the zodiacal dust detected in ... [more ▼]

A warm/hot dust component (at temperature $>$ 300K) has been detected around $\sim$ 20% of stars. This component is called "exozodiacal dust" as it presents similarities with the zodiacal dust detected in our Solar System, even though its physical properties and spatial distribution can be significantly different. Understanding the origin and evolution of this dust is of crucial importance, not only because its presence could hamper future detections of Earth-like planets in their habitable zones, but also because it can provide invaluable information about the inner regions of planetary systems. In this review, we present a detailed overview of the observational techniques used in the detection and characterisation of exozodiacal dust clouds ("exozodis") and the results they have yielded so far, in particular regarding the incidence rate of exozodis as a function of crucial parameters such as stellar type and age, or the presence of an outer cold debris disc. We also present the important constraints that have been obtained, on dust size distribution and spatial location, by using state-of-the-art radiation transfer models on some of these systems. Finally, we investigate the crucial issue of how to explain the presence of exozodiacal dust around so many stars (regardless of their ages) despite the fact that such dust so close to its host star should disappear rapidly due to the coupled effect of collisions and stellar radiation pressure. Several potential mechanisms have been proposed to solve this paradox and are reviewed in detail in this paper. The review finishes by presenting the future of this growing field. [less ▲]

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See detailIntroduction
Carlier, Anne; Guillot, Céline; Philippart de Foy, Caroline ULiege

in Carlier, Anne; Guillot, Céline (Eds.) Du latin tardif au français ancien : continuités et rupture (in press)

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See detailDe l’emploi des démonstratifs et déictiques dans un corpus hagiographique de l’Antiquité tardive et du Haut-Moyen Age : l’apport de l’analyse des cooccurrents spécifiques à une étude linguistique
Joffre, Marie-Dominique; Longrée, Dominique ULiege; Philippart de Foy, Caroline ULiege

in Actes du XIe Colloque international sur le latin vulgaire et tardif (LVLT11), Oviedo, 1-5 Septembre 2014 (in press)

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See detailMesurer les distances entre des textes pré-carolingiens linguistiquement non-normés: le cas de la Passion de sainte Marine
Goullet, Monique; Philippart de Foy, Caroline ULiege

in Etudes Classiques (Namur, Belgium) (in press)

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See detailVisualiser la variation et le changement valenciel: structure des compléments datifs dans l’histoire du français
Mazziotta, Nicolas ULiege

in Linguisticae Investigationes (in press)

Il est possible de modéliser la variation et le changement valenciel à l'aide des structures formelles que nous nommons _polygraphes_. Ces derniers étendent les arbres syntaxiques dépendanciels en ... [more ▼]

Il est possible de modéliser la variation et le changement valenciel à l'aide des structures formelles que nous nommons _polygraphes_. Ces derniers étendent les arbres syntaxiques dépendanciels en autorisant des relations à porter sur d'autres relations. En prenant l'exemple de l'expression prépositionnelle ou non du datif en ancien français et en français moderne (complément des verbes _donner_, _aider_, et _pardonner_), nous montrons comment les polygraphes peuvent être employés pour montrer géométriquement la différence entre une préposition obligatoire et une préposition facultative. Le potentiel de ces structures permet également de visualiser l'évolution et de comparer le comportement des lexèmes. [less ▲]

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See detailApproaches to grammaticalization and lexicalization
Brems, Lieselotte ULiege; Hoffmann, Sebastian

in Brinton, Laurel (Ed.) English historical linguistics: approaches and perspectives (in press)

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See detailMaximum energy dissipation to explain velocity fields in shallow reservoirs
Westhoff, Martijn; Erpicum, Sébastien ULiege; Archambeau, Pierre ULiege et al

in Journal of Hydraulic Research (in press)

Shallow reservoirs are often used as sediment traps or storage basins, in which sedimentation depends on the flow pattern: Short rectangular reservoirs reveal a straight jet from inlet to outlet with on ... [more ▼]

Shallow reservoirs are often used as sediment traps or storage basins, in which sedimentation depends on the flow pattern: Short rectangular reservoirs reveal a straight jet from inlet to outlet with on both sides identical recirculation zones. In longer reservoirs, the main jet reattaches to the side of the reservoir leading to a small and a large recirculation zone. Previous studies found an empirical geometric relation describing the switch between these two flow patterns. In this study, we demonstrate, with a simple analytical model, that this switch coincides with a maximization of energy dissipation in the shear layer between the main jet and recirculation zones: Short reservoirs dissipate more energy when the flow pattern is symmetric, while longer reservoirs dissipate more energy with an asymmetric pattern. This approach enables to predict the flow patterns without detailed knowledge of small scale processes, potentially useful in the early phase of reservoir design. [less ▲]

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See detailTonian (Neoproterozoic) eukaryotic and prokaryotic organic-walled microfossils from the upper Visingsö Group, Sweden
Loron, Corentin ULiege; Moczydłowska, Małgorzata

in Palynology (in press)

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See detailKIAA1199: a novel regulator of MEK/ERK-induced Schwann cell dedifferentiation
Boerboom, Angelique; Reusch, Céline ULiege; Pieltain, Alexandra ULiege et al

in Glia (in press)

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See detailVirtual Trials of the NICE-SUGAR Protocol: The Impact on Performance of Protocol and Protocol Compliance
Uyttendaele, Vincent ULiege; Dickson, Jennifer L.; Shaw, Geoffrey M. et al

in IFAC-PapersOnLine (in press)

Hypoglycaemia, hyperglycaemia and blood glucose (BG) variability are associated with worsened outcomes in critical care. However, NICE-SUGAR trial showed no clinical benefit from intensive insulin therapy ... [more ▼]

Hypoglycaemia, hyperglycaemia and blood glucose (BG) variability are associated with worsened outcomes in critical care. However, NICE-SUGAR trial showed no clinical benefit from intensive insulin therapy. This study compares the table-based NICE-SUGAR and model-based STAR protocols to assess their relative capability to achieve safe, effective control for all patients. Validated virtual patients (n=443) were used to simulate glycaemic outcomes of the NICE-SUGAR and STAR protocols. Key outcomes evaluate tightness and safety of control for all patients: %BG in 80–144 mg/dL range (PTR); Per-Patient Mean BG (PPM_BG); and Incidence of Hypoglycaemia (BG<40 mg/dL). These metrics determine performance overall, for each patient, and safety. Results are assessed for NICE-SUGAR measuring per-protocol (~24/day) and at reported average rate (~3-hourly; ~8/day). STAR measures 1-3-hourly, averaging 12/day. Per-protocol, STAR provided tight control, with higher PTR (90.7% vs. 78.3%) and tighter median [IQR] PPM_BG (112[106-119] vs. 117[106–137] mg/dL), and greater safety from hypoglycaemia (5 (1%) vs. 10 patients (2.5%)) compared to NICE-SUGAR simulations as per protocol. The 5-95th percentile range PPM_BG for NICE-SUGAR (97–185 mg/dL) showed ~5% of NICE-SUGAR patients had mean BG above 180mg/dL matching clinically reported performance. STAR’s 5th-90th PPM_BG percentile range was (97–146 mg/dL). Measuring as recorded clinically, NICE-SUGAR had PTR of 77%, PPM_BG of 122 [110-140] mg/dL and 24(6%) of patients experienced hypoglycaemia. These results match clinically reported values well (mean BG 115 vs. 118 mg/dL clinically vs. simulation, clinically 7% of patients had a hypoglycaemic event). Glycaemic control protocols need to be both safe and effective for all patients before potential clinical benefits can be assessed. NICE-SUGAR clinical results do not match results expected from their protocol, and show reduced safety and performance in comparison to STAR. [less ▲]

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See detailArrêts sur images – usages et pratiques du photogramme
Thonon, Jonathan ULiege

in MethIS : Méthodes et Interdisciplinarité en Sciences Humaines (in press)

Le photogramme est, au cinéma, la plus petite unité de prise de vue. Image fixe, unité élémentaire du film, le photogramme forme la cellule figée d’un mouvement qui se reconstitue sous l’effet d’un ... [more ▼]

Le photogramme est, au cinéma, la plus petite unité de prise de vue. Image fixe, unité élémentaire du film, le photogramme forme la cellule figée d’un mouvement qui se reconstitue sous l’effet d’un défilement réglé (24 photogrammes/seconde) par le dispositif technique du cinéma. Image paradoxale en ce qu’elle reste invisible au spectateur malgré sa force iconique, le photogramme trouve cependant, dans le flux qui le conduit insensiblement à la disparition, certaines zones de visibilité qui en révèlent le caractère à la fois fragile et intensif. Nous allons donc envisager certaines pratiques ou certains usages du photogramme cinématographique, tout en essayant de dégager, au départ de ces pratiques, les éléments d’une théorie du photogramme, que Roland Barthes et Sylvie Pierre appelaient déjà de leurs vœux. Des protos-photogrammes et de leur usage scientifique chez Muybridge et Marey, aux usages artistiques contemporains, en passant par des pratiques publicitaires, promotionnelles ou analytiques, nous allons voir que le photogramme reste un objet singulier. [less ▲]

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See detailFamiliennamen zwischen Maas und Rhein
Möller, Robert ULiege

in Rheinische Vierteljahrsblätter (in press)

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See detailDeutsch in Ostbelgien – ostbelgisches Deutsch ?
Möller, Robert ULiege

in Davies, Wini; Häcki-Buhofer, Annelies; Schmidlin, Regula (Eds.) et al Plurizentrik des Deutschen zwischen Norm und Praxis (in press)

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See detailLe faussaire
Havelange, Carl ULiege

in Durante, Erica (Ed.) De l'humain au post-humain: le double et ses récits (in press)

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See detailObjet et pratiques sémiotiques : quelques enjeux médiatiques du support photographique
Honba Honba, Cédric ULiege

in Signata. Annales des Sémiotiques = Annals of Semiotics (in press)

Detailed reference viewed: 27 (6 ULiège)