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See detailFormulation d'un projet de recherche : à propos du discours des « Nouveaux Réactionnaires »
Durand, Pascal ULg; Sindaco, Sarah ULg

Scientific conference (2013, November 28)

Les années 1990-2000 ont été marquées, en France, par l'émergence d'un courant de pensée et d'une nébuleuse d'acteurs intellectuels communément rassemblés sous l'étiquette des « Nouveaux Réactionnaires » ... [more ▼]

Les années 1990-2000 ont été marquées, en France, par l'émergence d'un courant de pensée et d'une nébuleuse d'acteurs intellectuels communément rassemblés sous l'étiquette des « Nouveaux Réactionnaires » (tels que Pascal Bruckner, Alain Finkielkraut, Alexandre Adler, Philippe Muray, Jean Clair, Éric Zemmour, Michel Houellebecq, etc.). Journalistes, romanciers, essayistes, chroniqueurs, philosophes, affichant une posture de refus à l'égard du politiquement correct, de la gauche morale et de la pensée unique, ils forment une sorte de personnage générique, composé de singularités en rupture avec toute assignation sociologique. Le projet de recherche entend dresser le tableau raisonné de ce collectif dispersé, sous les deux rapports d'une sociographie de groupe et d'une analyse rhétorique de leur discours ; il entend aussi mettre à l'épreuve différentes hypothèses explicatives sur l'émergence historique et politique du phénomène. [less ▲]

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See detailFormulation de l'étude linéarisée des structures précontraintes
Debongnie, Jean-François ULg

Report (1976)

Pre-stress may have a consderable effect on the behaviour of thin walled structures. The general case is non linear. However, there is a class of situations where the study remains linear, as for example ... [more ▼]

Pre-stress may have a consderable effect on the behaviour of thin walled structures. The general case is non linear. However, there is a class of situations where the study remains linear, as for example, a plate with a membranar pre-stress. The present paper focuses on the basic hypotheses of such a linearized analysis an on its exact formulation. [less ▲]

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

Poster (2006, September)

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See detailFormulation des bétons
Courard, Luc ULg

Learning material (2010)

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See detailFormulation of a geometrically exact beam finite element on the Lie group SE(3)
Sonneville, Valentin ULg; Cardona, Alberto; Bruls, Olivier ULg

Conference (2013, July)

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See detailFormulation of Kinematic Joints and Rigidity Constraints in Multibody Dynamics using a Lie Group Approach
Sonneville, Valentin ULg; Bruls, Olivier ULg

in Proceedings of the 2nd Joint International Conference on Multibody System Dynamics (IMSD) (2012, May)

The matrix Lie group approach allows to formulate and solve the equations of motion of a multibody system in a parametrization-free framework. The kinematic joints and the rigidity constraints should also ... [more ▼]

The matrix Lie group approach allows to formulate and solve the equations of motion of a multibody system in a parametrization-free framework. The kinematic joints and the rigidity constraints should also be formulated as constraint equations on the Lie group. Working on the Special Euclidean group SE(3), we introduce a method to obtain appropriate vectorial constraint equations in terms of mixed coordinates. Moreover, we present an absolute coordinates formulation, based on an relative coordinates elimination method, so that the minimum number of constraint equations necessary to describe the joints is used. [less ▲]

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See detailFORMULATION OF PEPTIDE-LOADED LIPOSOMES FOR INTRAVENOUS DELIVERY: OPTIMIZATION OF THE ENCAPSULATION EFFICIENCY
Ducat, Emilie ULg; Brion, Michael; Evrard, Brigitte ULg et al

Conference (2009)

Purpose: Print 3G is a peptidic antagonist of oncoprotein involved in breast cancer, containing 25 amino acids. The purpose of this work is to study the peptide encapsulation into PEGylated liposomes ... [more ▼]

Purpose: Print 3G is a peptidic antagonist of oncoprotein involved in breast cancer, containing 25 amino acids. The purpose of this work is to study the peptide encapsulation into PEGylated liposomes composed of SPC:CHOL:mPEG-2000-DSPE (47:47:6). Methods: Loaded unilamellar vesicles were prepared by hydration of lipid film method. Unfortunately, a loss of Print 3G was observed during the different steps of this manufacturing technique giving rise to encapsulation efficiencies (EE) close to 0 %. Thus, the freeze-thawing method was used to enhance the amount of Print 3G encapsulated into blank liposomes prepared using the above procedure. Because many factors may influence the peptide entrapment into the vesicles (number of freeze-thawing cycles (NC), lipid concentration (LC), peptide concentration (PC) and mixing time (MT)), a design of experiment (DOE) was performed (for the screening, a Plackett and Burman plan; for the optimization, a central composite design). EE were calculated in terms of quantity of peptide loaded in liposomes as a function of quantity operated (EEp) or quantity of lipids (EEl). Results: The EE obtained by the freeze-thawing method in standard conditions (Katanasaka, Ida et al., 2008; Maeda, Bharate et al., 2008), amounted to 26.20 ± 7.98 %, n=3 (EEp) and to 0.26 ± 0.074 % (EEl). Among the different considered parameters, the screening permitted to identify two factors having a positive and significant influence on the EE: NC and LC. Concerning the PC and MT, no influence was revealed. For the second part of the DOE, the positive factors were optimized and obtained results revealed a theoretical optimum at 64.75 ± 3.55 % when 11 freeze-thawing cycles were applied (NC) and for the following LC: 36.1 mM SPC, 36.1 mM CHOL and 4mM mPEG-2000-DSPE. The experimental results showed an encapsulation efficiency of 62.68 ± 2.93 %. Photon correlation spectroscopy and freeze-fracture electron microscopy were also realized to examine the liposome integrity, before and after the freeze-thawing cycles. Conclusion: Changing the manufacturing technique permitted a significant encapsulation of Print 3G into liposomes. The DOE led to a significant improvement of encapsulation efficiencies. References: (1) Katanasaka,Y., Ida,T., Asai,T., Maeda,N., Oku,N., 2008. Effective delivery of an angiogenesis inhibitor by neovessel-targeted liposomes. International Journal of Pharmaceutics, 360, 219-224. (2) Maeda,H., Bharate,G.Y., Daruwalla,J., 2008. Polymeric drugs for efficient tumor-targeted drug delivery based on EPR effect. Eur. J Pharm Biopharm. Acknowledgements: This work was supported by the Ministry of the Walloon Region. [less ▲]

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See detailFormulation of subcronic emulsions by using a high-pressure homogeniser
Roland, Isabelle ULg; Evrard, Brigitte ULg; Erpicum, Thomas et al

Conference (2001)

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See detailFormulation of submicronic emulsions by using a high-pressure homogeniser
Roland, I; Evrard, Brigitte ULg; Erpicum, T et al

in Journal de Pharmacie de Belgique (2003), 57

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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 (in press)

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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),

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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 ▲]

Detailed reference viewed: 126 (8 ULg)