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See detailA formulation of the Eurocode 2 concrete model at elevated temperature that includes an explicit term for transient creep
Gernay, Thomas ULg; Franssen, Jean-Marc ULg

in Fire Safety Journal (2012), 51

The first objective of this paper is to highlight the capabilities and limitations of concrete uniaxial constitutive models at elevated temperatures for thermo-mechanical behavior modeling, depending on ... [more ▼]

The first objective of this paper is to highlight the capabilities and limitations of concrete uniaxial constitutive models at elevated temperatures for thermo-mechanical behavior modeling, depending on the implicit or explicit consideration of transient creep strain in the model. The characteristics inherent to the two types of models are described and compared. It appears that one of the major limitations of implicit models concerns the unloading stiffness. Based on numerical analysis performed on loaded concrete columns subjected to natural fire, it is shown that the stress–temperature paths experienced by structural concrete are varied and complicated and that concrete material models cannot handle properly these complex situations of unsteady temperatures and stresses without explicit consideration of transient creep. The second objective of the paper is to propose a new formulation of the Eurocode 2 concrete material model that contains an explicit term for transient creep. The new model is implemented in the software SAFIR and validated against experimental data of the mechanical strain developed by concrete cylinders under different unsteady temperatures and loads. It is shown that the actual material behavior is better matched with the new explicit model than with the current implicit Eurocode 2 model. Finally, a comparison is given between experimental and computed results on a centrally loaded concrete column submitted to heating–cooling sequence. [less ▲]

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See detailA formulation on the special Euclidean group for dynamic analysis of multibody systems
Sonneville, Valentin ULg; Bruls, Olivier ULg

in Journal of Computational and Nonlinear Dynamics (2014), 9(4), 041002

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See detailFormulation solide de la lipase de Yarrowia lipolytica
Alloue, M.; Destain, Jacqueline ULg; Thonart, Philippe ULg

Poster (2005, March 05)

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See detailLes formulations a liberation lente.
Schiffers, Bruno ULg

in Annales de Gembloux (1985), 91(1), 31-37

La formulation idéale pour une matière active est celle qui lui permet d'avoir la plus grande efficacité par rapport à la cible, tout en garantissant un risque minimum pour tous les organismes non visés ... [more ▼]

La formulation idéale pour une matière active est celle qui lui permet d'avoir la plus grande efficacité par rapport à la cible, tout en garantissant un risque minimum pour tous les organismes non visés, et plus particulièrement l'homme, Il y a, et dans la recherche, et dans l'ïndustrie phytopharmaceutique, un continuel souci d'innover afin de créer et de fabriquer des formulations qui maximisent l'activité des matières actives et minimisent leurs effets contraires (HEDIN,1982 ; RILEY,1983). [less ▲]

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See detailFormule de la nutation annuelle par M. Ubaghs : rapport de F. Folie
Folie, François ULg

in Bulletins de l'Académie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique (1884), 3e série, t. 8(8), 173-176

The author establishes a report on a Mr. Ubaghs’ thesis on an annual nutation formula.

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See detailLes formules basées sur la créatinine :indiscutable ?
Delanaye, Pierre ULg

Conference given outside the academic context (2008)

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See detailFormules correctes de la nutation eulérienne de l'axe instantané, suivies des expressions complètes de la nutation de l'écorce solide du Globe
Folie, François ULg

in Bulletin de la Classe des Sciences. Académie Royale de Belgique (1900), 8

The author explains the result of a new analysis. The Eulerian nutation of the instantaneous axis is three hundred times greater than the geographical axis. Its expression, as well as the hour, related to ... [more ▼]

The author explains the result of a new analysis. The Eulerian nutation of the instantaneous axis is three hundred times greater than the geographical axis. Its expression, as well as the hour, related to this axis, contains additional multiplied terms by the time. [less ▲]

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See detailFormules de calcul de distances à respecter entre bâtiments d'élevage et habitations pour que l'odeur soit acceptable. Comparaisons et proposition, puis validation d'une formule pour la Wallonie (Belgique)
Nicolas, Jacques ULg; Cobut, Pierre; Otte, Benoît et al

in Actes des septièmes journées de la recherche avicole (2007)

Le Gouvernement de la Région wallonne (Belgique) a confié à l'unité de recherche la tâche d'inventorier les différentes directives relatives au calcul de la distance à respecter entre les bâtiments d ... [more ▼]

Le Gouvernement de la Région wallonne (Belgique) a confié à l'unité de recherche la tâche d'inventorier les différentes directives relatives au calcul de la distance à respecter entre les bâtiments d'élevage (dont les élevages de volailles) et les habitations pour assurer un niveau d'acceptabilité de l'odeur générée. Huit formules de calcul, appliquées dans différents pays, ont été examinées et comparées et une étude de sensibilité des différents paramètres a été menée. Cette première comparaison a donné lieu à une appréciation des différentes méthodologies, selon des critères de pertinence par rapport à la réalité de terrain, de faisabilité technique, d'applicabilité à la Région wallonne et de cohérence avec les théories de la génération et de la dispersion des odeurs. Sur base de ces différents éléments, une formule originale a été proposée : elle permet de calculer une distance d'acceptabilité de la nuisance olfactive sur base de facteurs multiplicatifs incluant les éléments suivants : nombre et type d'animaux, facteurs techniques de l'étable (type, stockage et manipulation de la litière, ventilation, nourriture), environnement orographique et météorologique et type de voisinage. Les différents paramètres de cette formule ont été ajustés grâce à des visites de terrain, puis la formule a été validée sur 22 poulaillers et élevages de canards. La compatibilité a été testée avec les unités d'odeur, les débits d'odeur et les percentiles spatio-temporels utilisés pour apprécier les zones de nuisances olfactives. [less ▲]

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See detailLes formules de répartition du fonds des communes orientent-elles la fiscalité locale ?
Husson, Jean-François ULg

in Revue de Fiscalité Régionale et Locale (2013), 1

The Municipal Fund, or Fonds des communes, is a general transfer to Walloon municipalities. A 1989 reform has introduced a formula taking into account fiscal returns and it was considered that this has ... [more ▼]

The Municipal Fund, or Fonds des communes, is a general transfer to Walloon municipalities. A 1989 reform has introduced a formula taking into account fiscal returns and it was considered that this has has an inlfluence on local fiscal mix. This paper analyses the evolution of the main local taxes of Walloon municipalities and present a comparison with the situation in the other Belgian regions. [less ▲]

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See detailFormules du pathos et survivances culturelles. Introduction à Aby Warburg
Hagelstein, Maud ULg

Scientific conference (2010, May 26)

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See detailFormules homériques et musique religieuse afro-américaine
Pirenne, Christophe ULg

in Revista de Musicología (1993), XVI(4), 24-33

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See detailFORS1 is getting Blue: New Blue Optimised Detectors and High Throughput Filters
Szeifert, Thomas; Reiss, Roland; Baksai, Pedro et al

in The Messenger (2007), 128

Ground-based observations in the ultraviolet part of the electromagnetic spectrum are notoriously difficult owing to absorption of the atmosphere, of optical elements and the poorer efficiency of ... [more ▼]

Ground-based observations in the ultraviolet part of the electromagnetic spectrum are notoriously difficult owing to absorption of the atmosphere, of optical elements and the poorer efficiency of detectors. Now that CCD detectors with excellent UV response and cosmetic quality have become available, it was time to optimise FORS1 for imaging, low-resolution spectroscopic and polarimetric observations in the blue-UV. As a bonus, a new set of broadband filters with very high trans-mission and carefully defined filter bands were installed. [less ▲]

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See detailLa fortuna editoriale del Carteggio di Francesco Guicciardini, dal Cinquecento ai giorni nostri
Moreno, Paola ULg

Book published by Istituto Storico Italiano per l’Età Moderna e Contemporanea (2010)

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See detailLa Fortuna romaine et l'héritage grec
Leers, Larissa ULg

Master's dissertation (2010)

We have chosen to focus in this paper the concept of fate in Rome, and this, especially through the cult of the goddess Fortuna. Indeed, it has two significant innovations compared to other deities of the ... [more ▼]

We have chosen to focus in this paper the concept of fate in Rome, and this, especially through the cult of the goddess Fortuna. Indeed, it has two significant innovations compared to other deities of the Roman pantheon, since on the one hand, it completely changed in nature over the centuries, and, on the other hand, when this gradual change, Goddess Latial it is in its origins, it becomes a goddess Roman itself. Thus, the mother-goddess and fertility, it becomes gradually finally became exclusively in its sanctuaries of Latium, a goddess of luck. (...) [less ▲]

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See detailLa Fortune des Liaisons dangereuses
Tilkin, Françoise ULg

Article for general public (2011)

Detailed reference viewed: 50 (6 ULg)