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See detailLilia florent : l’imaginaire politique et social à la cour de France durant les premières Guerres d’Italie (1494-1525)
Dumont, Jonathan ULg

Doctoral thesis (2010)

Ces dernières années, l’historiographie des premières Guerres d’Italie (1494-1525) s’est considérablement enrichie notamment grâce aux études de D. Le Fur, N. Hochner, A.-M. Lecoq et R. W. Scheller ... [more ▼]

Ces dernières années, l’historiographie des premières Guerres d’Italie (1494-1525) s’est considérablement enrichie notamment grâce aux études de D. Le Fur, N. Hochner, A.-M. Lecoq et R. W. Scheller. Croisant délibérément des sources variées (littéraires, politiques et iconographiques) ainsi que les méthodes (celle de l’historien des textes et celle de l’historien d’art), leurs travaux se sont attachés à définir les différents aspects du pouvoir royal et la manière dont celui-ci se met en scène tout spécialement sous les règnes de Charles VIII, de Louis XII et de François Ier. Force est donc de constater que la figure du roi de France domine l’historiographie récente des premières Guerres d’Italie. Pourtant, à chaque fois que les souverains des fleurs de lys sont mis en scène, ils n’occupent pas seuls le discours politique. D’autres personnages, la France et les Français, apparaissent à côté d’eux. Le premier est dépeint, selon une tradition établie, comme un espace bénéficiant de qualités exceptionnelles. Lesdites qualités conditionnent la nature du deuxième personnage – les Français –, lequel s’intègre dès lors à un portrait de la nation. Durant les Guerres d’Italie, ce discours sur la France et les Français ne sert pas uniquement à décrire le royaume lui-même. Il permet avant tout aux artisans de la propagande royale d’élaborer une pensée légitimant la conquête de l’Italie et permettant d’y imposer une nouvelle culture politique et sociale d’inspiration française. Cet amalgame d’images à propos de l’Italie française ou Franco-Italia traverse l’ensemble de la période, croisant parfois la figure royale, mais s’en éloignant aussi très souvent. L’étude d’une telle idéologie révèle enfin un intérêt supplémentaire. Au cours des premières décennies du XVIe siècle, la France connaît un véritable bouleversement de son modèle d’organisation sociale traditionnel. Nous voulons parler des trois ordres du féodalisme (oratores, bellatores et laboratores). Certes, dans la réalité quotidienne, le système ternaire ne reflète plus, depuis des siècles, la complexité des relations politiques et sociales. Par contre, la remise en cause de ce modèle au sein de la pensée politique curiale, en somme dans la culture de l’élite, est une donnée relativement nouvelle en ce début de XVIe siècle. Ainsi, le discours sur l’Italie française sert de champ d’expérimentation aux théoriciens du politique, aux polémistes ainsi qu’aux chroniqueurs et même aux poètes, leur permettant de redéfinir les contours d’un schéma ternaire qui, dans sa forme traditionnelle, leur apparaît désuet. On l’aura compris : notre thèse s’oriente donc vers l’étude, non d’un seul mode de pensée, mais plutôt d’une pluralité de concepts et d’opinions ayant comme dénominateur commun la redéfinition des contours de l’Italie et également de la France. Il s’agira de comprendre la manière dont les auteurs de la cour de France regardent la Péninsule et ses habitants et comment, de cette expérience de l’altérité, ils en arrivent à pratiquer un retour sur eux-mêmes et à relire leur propre mode d’organisation sociale, autrement dit, les cadres théoriques de leur existence. Cette histoire des lys qui s’évertuent à fleurir dans les champs d’une Italie pourtant bien décidée à les faucher sera l’occasion d’entrevoir sous un angle neuf cette période de bouleversements et d’inquiétudes que sont les premières Guerres d’Italie. [less ▲]

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See detailLilia florent. L’imaginaire politique et social à la cour de France durant les premières Guerres d’Italie (1494–1525)
Dumont, Jonathan ULg

Book published by Honoré Champion (2013)

During the first Italian Wars (1494–1525), at the court of France, an ideology of assimilation of Italy by France is developing: Franco-Italia. Historiographers and poets show the Peninsula as a new ... [more ▼]

During the first Italian Wars (1494–1525), at the court of France, an ideology of assimilation of Italy by France is developing: Franco-Italia. Historiographers and poets show the Peninsula as a new France populated by Italians Frenchified. But this thought reveals much more than an attempt absorption of Italy by France. It highlights a real disruption of traditional social structures. At the beginning of the sixteenth century, there is a critique of the social order at the heart of the closed circles of power. This work is well under the sign of acculturation - that of Italy and Italians - and reflection of identity - Frenchising Italy, the French redefine their own socio-political structures. It enlights the very nature of political thought at the beginning of the Renaissance, thought full of contradictions and doubts, in a period full of turmoil and worry. [less ▲]

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See detailA Lilliputian lignophyte from the Lower Devonian?
Gerrienne, Philippe ULg; Strullu-Derrien, C.; Steemans, Philippe ULg

Conference (2008, November 27)

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See detailLima : un sommet sans enjeux
Santander, Sébastian ULg

Article for general public (2008)

L'UE et l'Amérique latine tiennent tous les deux ans des sommets de chef d'Etat et de gouvernement. Ces derniers ont pour objectif de faire avancer les relations économiques, commerciales, politiques ... [more ▼]

L'UE et l'Amérique latine tiennent tous les deux ans des sommets de chef d'Etat et de gouvernement. Ces derniers ont pour objectif de faire avancer les relations économiques, commerciales, politiques, culturelles et de coopération. Toutefois, le sommet de Lima a démontré l'écart entre les intentions de créer un "partenariat stratégique" et la réalité qui est traversée par des conflits aussi bien entre l'UE et l'AL qu'au sein même des relations intralatinoaméricaines. Cette situation bloque les ambitions de l'agenda UE/AL. [less ▲]

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See detailLimb observations of the ultraviolet nitric oxide nightglow with SPICAV on board Venus Express
Gérard, Jean-Claude ULg; Cox, Cédric ULg; Saglam, Adem ULg et al

in Journal of Geophysical Research. Planets (2008), 113

Limb observations of the spectrum of nightglow emission in the delta (190-240 nm) and gamma (225-270 nm) bands of nitric oxide have been made with the Spectroscopy for Investigation of Characteristics of ... [more ▼]

Limb observations of the spectrum of nightglow emission in the delta (190-240 nm) and gamma (225-270 nm) bands of nitric oxide have been made with the Spectroscopy for Investigation of Characteristics of the Atmosphere of Venus (SPICAV) ultraviolet spectrometer on board Venus Express. These emissions arise from radiative recombination between O([SUP]3[/SUP]P) and N([SUP]4[/SUP]S) atoms that are produced on the dayside and recombine to form excited NO molecules on the nightside. No other emission feature has been identified. The mean altitude of the emission layer is located at 113 km, but it varies between 95 and 132 km. The mean brightness of the total NO emission at the limb is 32 kR, but it is highly variable with limb intensities as large as 440 kR observed at low latitude and values below 5 kR seen at northern midlatitudes. No systematic dependence of the brightness with latitude is observed, but the mean altitude of the emission maximum statistically drops with increasing latitude between 6° and 72°N. Typical observed limb profiles are compared with simulations based on a one-dimensional chemical-diffusive atmospheric model. From model fits to observed profiles, we find that the downward flux of N atoms at 130 km typically varies between 1 × 10[SUP]8[/SUP] to 4 × 10[SUP]9[/SUP] atoms cm[SUP]-2[/SUP] s[SUP]-1[/SUP]. Comparisons of observed airglow topside scale heights with modeled profiles smoothed by the instrumental field of view indicate that the observations are compatible with a downward flow of O and N atoms by molecular and turbulent transport above the peak of emission. The K coefficient deduced from comparisons to limb profiles is less than that determined from the observations made with the Pioneer Venus UV spectrometer at low latitude during periods of high solar activity. [less ▲]

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See detailLimestone fillers cement-based composites: effects of blast furnace slags on fresh and hardened properties
Courard, Luc ULg; Michel, Frédéric ULg

in Construction and Building Materials (2014), 51

Limestone filler is a raw material that is already used in several applications like paints, bricks, bituminous mixtures…etc. Moreover, and particularly in Belgium, classical additions for concrete like ... [more ▼]

Limestone filler is a raw material that is already used in several applications like paints, bricks, bituminous mixtures…etc. Moreover, and particularly in Belgium, classical additions for concrete like fly ashes and granulated blast furnace slags are becoming rare; there is a need for new additions that could have a positive effect on the properties of the fresh and hardened cementitous composites. Substitution of limestone filler in Portland cement and Granulated blast furnace slag cement has been realized between 15 and 27 % in mass. In addition to the characterization of the powder itself – specific mass, specific surface and laser granulometry – the problem of the water demand has been analysed: it seems that it remains constant with the substitution rate. Electric conductivity has also been performed in order to study the evolution of the “dormant” period. Tests on hardened mortars were performed with regard to mechanical properties and evolution of the porosity. Test results indicate that the porosity seems to be finer in the case of granulated blast furnace slags cements, partially due to a very low diameter of the slags particles. Oxygen permeability doesn’t seem to be influenced by the filler while capillary absorption increases with substitution rate. Finally, carbonation rate, sulphate resistance and chloride penetration show quite interesting behaviours, leading to the conclusion that limestone fillers maybe a good substitution material. [less ▲]

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See detailLimestone karst rodents in Southeast Asia
Latinne, Alice ULg; Michaux, Johan ULg

Conference (2008, October 02)

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See detailLiminaire
Steinmetz, Rudy ULg

in La Part de l'Oeil (2006)

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See detailLiminaire. Du primat des formes sur les forces et inversement
Steinmetz, Rudy ULg

in La Part de l'Oeil (2013), 27-28

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See detailLimit analysis of the statistics of quasi-steady non-linear aerodynamic forces for small turbulence intensities
Denoël, Vincent ULg

in Probabilistic Engineering Mechanics (2009), 24(4), 552-564

This paper focuses on the estimation of statistical characteristics of a specific quasi-steady wind loading used in buffeting analyses. In this loading, the intrinsic non-linearity of aerodynamic ... [more ▼]

This paper focuses on the estimation of statistical characteristics of a specific quasi-steady wind loading used in buffeting analyses. In this loading, the intrinsic non-linearity of aerodynamic coefficients is considered and approached by a polynomial expression of any a priori chosen degree. As rigorous developments of the statistical moments would result in impractical formulations, we suggest to consider the smallness of the turbulence intensities to construct, by means of a limit analysis, approximate expressions of the raw moments of aerodynamic forces. From these expressions, approximate cumulants and associated dimensionless characteristics, such as skewness and excess coefficients, are derived. The accuracy of the proposed analytical relations is assessed by comparison with Monte Carlo simulations, and the relevance of the sophisticated non-linear loading under consideration is compared to more traditional models. [less ▲]

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See detailLimit and Shakedown Analysis of 3D Steel Frames
Hoang, Van Long ULg; Nguyen, Dang Hung

in Engineering Structures (2008), 30

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See detailLimit current density in 2D metallic granular packings
Dorbolo, Stéphane ULg; Ausloos, Marcel ULg; Vandewalle, Nicolas ULg

in European Physical Journal B -- Condensed Matter (2003), 34(2), 201-204

The electrical properties of a 2D packed metallic pentagons have been studied. The electrical characterization of such metallic pentagon heaps, like i - V measurements, has been achieved. Two distinct ... [more ▼]

The electrical properties of a 2D packed metallic pentagons have been studied. The electrical characterization of such metallic pentagon heaps, like i - V measurements, has been achieved. Two distinct regimes have been shown. They are separated by a transition line along which the system exhibits a memory effect behavior due to the irreversible improvement of electrical contacts between pentagons (hot spots). A limit current density has been found. [less ▲]

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See detailLimit Cycle Oscillation Control
Dimitriadis, Grigorios ULg

Poster (2000, December)

Over the last fifteen years the Aerospace industry has started to show a continuously increasing interest in the investigation of the vibrations of aircraft subjected to nonlinear structural and ... [more ▼]

Over the last fifteen years the Aerospace industry has started to show a continuously increasing interest in the investigation of the vibrations of aircraft subjected to nonlinear structural and aerodynamic forces. Here, a control scheme designed to alleviate or even stop some types of nonlinear aircraft vibrations is presented. [less ▲]

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See detailLimit Cycle Oscillation Control and Suppression
Dimitriadis, Grigorios ULg; Cooper, Jonathan E

in Aeronautical Journal (1999), 103(1023), 257-263

The prediction and characterization of the Limit Cycle Oscillation (LCO) behaviour of nonlinear aeroelastic systems has become of great interest recently. However, much of this work has concentrated on ... [more ▼]

The prediction and characterization of the Limit Cycle Oscillation (LCO) behaviour of nonlinear aeroelastic systems has become of great interest recently. However, much of this work has concentrated on determining the existence of LCOs. This paper concentrates on LCO stability. By considering the energy present in di®erent limit cycles, and also using the Harmonic Balance Method, it is shown how the stability of limit cycles can be determined. The analysis is then extended to show that limit cycles can be controlled, or even suppressed, by the use of suitable excitation signals. A basic control scheme is developed to achieve this, and is demonstrated on a simple simulated nonlinear aeroelastic system. [less ▲]

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See detailLimit Cycle Oscillations of a Delta Wing in a Low Speed Wind Tunnel
Korbahti, Banu; Kagambage, Emile ULg; Andrianne, Thomas ULg et al

in Proceedings of ISMA2010 (2010, September 22)

Limit cycle oscillations involving Delta wings are an important area of research in modern aeroelasticity. Such phenomena can be the result of structural or aerodynamic nonlinearity. In this paper, a ... [more ▼]

Limit cycle oscillations involving Delta wings are an important area of research in modern aeroelasticity. Such phenomena can be the result of structural or aerodynamic nonlinearity. In this paper, a flexible half-Delta wing is tested in a low speed wind tunnel in order to investigate its dynamic response. Specifically, an investigation to determine the effects of a steady angle of attack on nonlinear Limit Cycle Oscillations (LCO) of a delta wing-plate model in low subsonic flow has been undertaken. It was found that, at several combinations of airspeed and angle of attack, the wing undergoes limit cycle oscillations. Two types of such oscillations are observed. One of them is low amplitude, low complexity limit cycle oscillations that occur at lower airspeeds; the other is high amplitude, high complexity limit cycle oscillations that occur a higher airspeeds and can appear abruptly. Some of the LCOs are the result of a subcritical Hopf bifurcation occurring at low steady angles of attack. At higher angles, a nontypical bifurcation was observed, whereby LCOs appear, grow with airspeed but then diminish and finally disappear as the airspeed is increased further. [less ▲]

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See detailLimit Cycle Prediction For Subsonic Aeroelastic Systems Using Nonlinear System Identification
Dimitriadis, Grigorios ULg; Vio, Gareth Arthur; Cooper, Jonathan Edward

in Ferman, M. A.; Petersson, B. A. T.; Rizzi, S. A. (Eds.) et al Proceedings of the VIII International Conference on Recent Advances in Structural Dynamics (2003, July)

The prediction of aeroelastic instabilities caused by nonlinear unsteady aerodynamic forces acting on aircraft has recently become an important area of research. Emphasis is placed on the capability to ... [more ▼]

The prediction of aeroelastic instabilities caused by nonlinear unsteady aerodynamic forces acting on aircraft has recently become an important area of research. Emphasis is placed on the capability to predict the occurrence of Limit Cycle Oscillations (LCOs) at both the design and prototype testing stages. In this paper, the prediction of LCOs is attempted for a simulated aeroelastic system subjected to nonlinear subsonic unsteady aerodynamic forces, using system identification. Response data from the simulated system are curve-fitted by means of a series of polynomial basis functions. This approach yields very accurate identified models of the actual system at individual flight conditions. These identified models are extrapolated to a global aeroelastic identified model. Using this model, the flight conditions at which LCOs occur is accurately predicted but the amplitude of the oscillations is underestimated. [less ▲]

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See detailLimit cycling behavior of a hybrid system: Application to percussive drilling
Depouhon, Alexandre ULg; Detournay, Emmanuel; Denoël, Vincent ULg

in Proceedings of the 2nd International Colloquium on Non-Linear Dynamics and Control of Deep Drilling Systems, Eindhoven, May 2012 (2012, May)

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See detailLimitation des reliquats azotes apres cereales d'hiver par un raisonnement approprie de la fumure azotee.
Bodson, Bernard ULg; Falisse, André ULg; Guiot, Joseph

in Calvet, R. (Ed.) Nitrates-agriculture-eau: Symposium international (1990, November 07)

L'azote minéral présent dans le sol et son utilisation par le froment d'hiver ont été régulièrement suivis dans trente-cinq essais installés au cours de six années. Il en ressort que la fumure azotée ... [more ▼]

L'azote minéral présent dans le sol et son utilisation par le froment d'hiver ont été régulièrement suivis dans trente-cinq essais installés au cours de six années. Il en ressort que la fumure azotée optimale (dose totale et fractionnement) est propre à être calculé en fonction des facteurs pédoclimatiques, du passé cultural de la parcelle et de l'état de la culture. La fumure ainsi déterminée permet d'atteindre un rendement proche de l'optimum économique tout en limitant au maximum les reliquats en azote minéral après culture. [less ▲]

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See detailLimitation du patrimoine commun
Leleu, Yves-Henri ULg

in Bourgeois, Marc; Leleu, Yves-Henri; Verbeke, A. (Eds.) et al Manuel de planification patrimoniale. Le couple, vie commune (2009)

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