Last 7 days
Bookmark and Share    
See detailL'otium cum dignitate de Bussy-Rabutin ou la cour imagée d’un lettré
De Marco, Rosa ULg

in CHAUFOUR, Marie; TAUSSIG, Sylvie (Eds.) La cause en est cachée. Etudes offertes à Paulette Choné par ses collègues, ses élèves et ses amis (in press)

Si l’essentiel des recherches se concentrent sur ses œuvres littéraires, nous proposons une analyse des fresques qui décorent le château de Roger de Bussy Rabutin, afin de mettre en valeur sa sensibilité ... [more ▼]

Si l’essentiel des recherches se concentrent sur ses œuvres littéraires, nous proposons une analyse des fresques qui décorent le château de Roger de Bussy Rabutin, afin de mettre en valeur sa sensibilité à l'image et sa maîtrise du langage figuré. Rejeté du corps de son « dieu mortel », Louis XIV, Bussy exilé se convertit de courtisan en homme et construit chez lui, par les images, son propre modèle de « royaume ». Au comble du dénouement il fabrique, comme il l’avait appris au collège jésuite, une forteresse d’images qui sont les armes pour un combat intime. [less ▲]

Detailed reference viewed: 18 (1 ULg)
Peer Reviewed
See detailInterprétation paysagère du processus d’urbanisation à Lubumbashi (RD Congo): dynamique de la structure spatiale et suivi des indicateurs écologiques entre 2002 et 2008
Useni Sikuzani, Yannick; Andre, Marie ULg; Mahy, Grégory ULg et al

in Mahy, Grégory; Colinet, Gilles; Bogaert, Jan (Eds.) Anthropisation au Katanga (in press)

Lubumbashi is one of the fastest growing African cities with annual population growth rates of 5 %. Its urban population growth leads to a rapid urban growth associated with several environmental problems ... [more ▼]

Lubumbashi is one of the fastest growing African cities with annual population growth rates of 5 %. Its urban population growth leads to a rapid urban growth associated with several environmental problems. This study test hypothesis that rapid built-up growth is followed by natural habitats decrease and creates favorable conditions for the spread of Tithonia diversifolia, an invasive specie. From two SPOT satellite images from 2002 and 2008 supported by field visits, seven land cover classes were obtained and the accuracy of the classification was verified. Landscape dynamic has been demonstrated through a transition matrix, by calculating spatial pattern metrics and identification of spatial transformation processes. The results obtained show that built-up covering 32 % of the landscape in 2008 against 22.6 % of the landscape in 2002. Its growth, followed by Tithonia diversifolia and anthropogenic vegetation, operates to the detriment of natural classes. The effect of human impact was translated by the increase of disturbance index which increased from 1.9 to 3.3 in six years, confirming that in the study area, natural classes are removed parallel to aggregation and creating of anthropogenic classes. The study area has undergone significant changes related to urban growth, which implies establishing efficient urban planning and management policies to reverse this trend. [less ▲]

Detailed reference viewed: 53 (12 ULg)
Full Text
Peer Reviewed
See detailIgnorance et maîtrise de la bête. Lefort critique de l'éducation "humaniste".
Mancuso, Eva ULg

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

Detailed reference viewed: 26 (5 ULg)
See detailLes églises nationales de Rome : un modèle festif et musical au service d'intérêt politique
Berti, Michela ULg; Corswarem, Emilie ULg

in Favier, Thierry (Ed.) Musique de la Foi / Musique du Pouvoir (in press)

Detailed reference viewed: 12 (0 ULg)
Full Text
Peer Reviewed
See detailOn the modeling of MMC for use in large scale dynamic simulations
Freytes, Julian; Papangelis, Lampros ULg; Saad, Hani et al

in Proceedings of the 19th PSCC (in press)

This paper focuses on simplified models of the Modular Multilevel Converter suitable for large-scale dynamic studies, in particular simulations under the phasor approximation. Compared to the existing ... [more ▼]

This paper focuses on simplified models of the Modular Multilevel Converter suitable for large-scale dynamic studies, in particular simulations under the phasor approximation. Compared to the existing literature, this paper does not a priori adopt the modeling approach followed for the original twolevel or three-level Voltage Source Converter. On the contrary, a model is derived following a physical analysis that preserves its average internal dynamic behavior. An equivalent control structure is proposed and various alternatives are highlighted. The proposed model with its controllers has been implemented in a phasor simulation software and its response has been validated against a detailed Electromagnetic Transient model. Finally, an illustrative example is presented with the application of the proposed model on a large grid consisting of AC areas interconnected with a multi-terminal DC grid. [less ▲]

Detailed reference viewed: 36 (9 ULg)
Full Text
Peer Reviewed
See detailA Validation of the French Version of the Attitudes to Aging Questionnaire (AAQ): Factor Structure, Reliability and Validity
Marquet, Manon ULg; Missotten, Pierre ULg; Schroyen, Sarah ULg et al

in Psychologica Belgica (in press)

Introduction: The Attitudes to Aging Questionnaire (AAQ) was developed to measure attitudes toward the aging process as a personal experience from the perspective of older people. The present study aimed ... [more ▼]

Introduction: The Attitudes to Aging Questionnaire (AAQ) was developed to measure attitudes toward the aging process as a personal experience from the perspective of older people. The present study aimed to validate the French version of the AAQ. Participants and methods: This study examined factor structure, acceptability, reliability and validity of the AAQ’s French version in 238 Belgian adults aged 60 years or older. In addition, participants provided information on demographics, self-perception of their mental and physical health (single items), quality of life (WHOQOL-OLD) and social desirability (DS-36). Results: Exploratory Factor Analysis produced a three-factor solution accounting for 36.9% of the variance. No floor or ceiling effects were found. The internal consistency, measured by Cronbach’s alpha coefficients for the AAQ subscales were 0.62 (Physical Change), 0.74 (Psychological Growth), and 0.75 (Psychosocial Loss). A priori expected associations were found between AAQ subscales, self-reported health and quality of life, indicating good convergent validity. The scale also showed a good ability to discriminate between people with lower and higher education levels, supporting adequate known-groups validity. Finally, we confirmed the need to control for social desirability biases when assessing self-reported attitudes toward one’s own aging. Conclusion: The data support the usefulness of the French version of the AAQ for the assessment of attitudes toward their own aging in older people. [less ▲]

Detailed reference viewed: 43 (19 ULg)
Full Text
Peer Reviewed
See detailReceding-Horizon Control of Distributed Generation to Correct Voltage or Thermal Violations and Track Desired Schedules
Soleimani Bidgoli, Hamid ULg; Glavic, Mevludin ULg; Van Cutsem, Thierry ULg

in Proceedings of the 19th PSCC (in press)

This paper presents a real-time, centralized control system acting on the active and reactive powers of distributed generators when the network experiences voltage and/or thermal limits violation. The ... [more ▼]

This paper presents a real-time, centralized control system acting on the active and reactive powers of distributed generators when the network experiences voltage and/or thermal limits violation. The control resorts on multi-step receding-horizon optimization. The objective is to minimize the deviations of Dispersed Generation Units (DGU) active and reactive powers from reference values. The reactive power corrections have priority over the active ones. Furthermore, the formulation is such that DGU powers are restored to their desired schedule as soon as operating conditions allow doing so. Three modes of operation of the proposed controller are presented, involving dispatchable units as well as DGUs operated to track maximum power output. The effectiveness of the proposed control is illustrated through detailed simulations of a 75-bus, 11-kV system hosting 22 DGUs. [less ▲]

Detailed reference viewed: 41 (15 ULg)
Full Text
Peer Reviewed
See detailProbabilistic reliability management approach and criteria for power system real-time operation
Karangelos, Efthymios ULg; Wehenkel, Louis ULg

in Power Systems Computation Conference (in press)

This paper develops a probabilistic approach for power system reliability management in real-time operation where risk is a product of i) the potential occurrence of contingencies, ii) the possible ... [more ▼]

This paper develops a probabilistic approach for power system reliability management in real-time operation where risk is a product of i) the potential occurrence of contingencies, ii) the possible failure of corrective (i.e., post-contingency) control and, iii) the socio-economic impact of service interruptions to end-users. Stressing the spatiotemporal variability of these factors, we argue for reliability criteria assuring a high enough probability of avoiding service interruptions of severe socio-economic impact by dynamically identifying events of nonnegligible implied risk. We formalise the corresponding decision making problem as a chance-constrained two-stage stochastic programming problem, and study its main features on the single area IEEE RTS-96 system. We also discuss how to leverage this proposal for the construction of a globally coherent reliability management framework for long-term system development, midterm asset management, and short-term operation planning. [less ▲]

Detailed reference viewed: 88 (10 ULg)
Full Text
See detailLevallois et Gravettien
Otte, Marcel ULg; Noiret, Pierre ULg

in Praehistoria (in press)

Par opposition à ceux de l’Aurignacien, les ensembles lithiques gravettiens procèdent selon une méthode rappelant le Levallois quant à la préparation des supports. Mais les variations observables au sein ... [more ▼]

Par opposition à ceux de l’Aurignacien, les ensembles lithiques gravettiens procèdent selon une méthode rappelant le Levallois quant à la préparation des supports. Mais les variations observables au sein du Gravettien touchent autant les processus de symbolisation dans l’art et les sépultures. Elles affectent différents substrats eurasiatiques, plutôt septentrionaux, comme mis en réserve dès les Néandertaliens. [less ▲]

Detailed reference viewed: 79 (11 ULg)
Full Text
Peer Reviewed
See detailOne-pot synthesis of double poly(ionic liquid) block copolymers by cobalt-mediated radical polymerization-induced self assembly (CMR-PISA) in water
Cordella, Daniela ULg; Debuigne, Antoine ULg; Jérôme, Christine ULg et al

in Macromolecular Rapid Communications (in press)

Amphiphilic double poly(ionic liquid) (PIL) block copolymers are directly prepared by cobalt- mediated radical polymerization induced self-assembly (CMR-PISA) in water of N-vinyl imida- zolium monomers ... [more ▼]

Amphiphilic double poly(ionic liquid) (PIL) block copolymers are directly prepared by cobalt- mediated radical polymerization induced self-assembly (CMR-PISA) in water of N-vinyl imida- zolium monomers carrying distinct alkyl chains. The cobalt-mediated radical polymerization of N-vinyl-3-ethyl imidazolium bromide (VEtImBr) is first carried out until high conversion in water at 30 °C, using an alkyl bis(acetylacetonate)cobalt(III) adduct as initiator and con- trolling agent. The as-obtained hydrophilic poly(N-vinyl-3- ethyl imidazolium bromide) (PVEtImBr) is then used as a macroinitiator for the CMR-PISA of N-vinyl-3-octyl imidazo- lium bromide (VOcImBr). Self-assembly of the amphiphilic PVEtImBr-b-PVOcImBr block copolymer, i.e., of PIL-b-PIL-type, rapidly takes place in water, forming polymer nanoparticles consisting of a hydrophilic PVEtImBr corona and a hydro- phobic PVOcImBr core. Preliminary investigation into the effect of the size of the hydrophobic block on the dimension of the nanoparticles is also described. [less ▲]

Detailed reference viewed: 43 (13 ULg)
Full Text
Peer Reviewed
See detailMicrobiological zoonotic emerging risks, transmitted between livestock animals and humans (2007-2015)
Filippitzi, ME; Goumperis, T; Robinson, T et al

in Transboundary and emerging diseases (in press)

Detailed reference viewed: 33 (4 ULg)
Full Text
Peer Reviewed
See detailSiting Controversies Analysis: Framework and Method for Questioning the Procedure
Rossignol, Nicolas ULg; Parotte, Céline ULg; Joris, Geoffrey ULg et al

in Journal of Risk Research (in press)

Siting controversies are commonplace, as well against the construction of roads, railways, nuclear waste disposals, as against windfarms. Local citizens resist against siting decisions taken by the ... [more ▼]

Siting controversies are commonplace, as well against the construction of roads, railways, nuclear waste disposals, as against windfarms. Local citizens resist against siting decisions taken by the authorities, following a dynamics often quoted as ‘Not In My Back Yard’. Yet contested for its lack of analytical value, NIMBY is still used strategically by actors to qualify citizens as irrational and egoistic. Beyond this labelling, many factors are investigated to understand the dynamics behind siting controversies. In this paper, we focus on the impact of the legal procedure structuring the implantation of windfarms in the Walloon Region (Belgium), and its translations within different decision making processes in specific case studies. To that regard, we consider the legal procedure as a ‘public policy instrument’. It is neither neutral nor natural, and carry values and interests. It organizes inter-personal relations between actors, and is potentially catalyzer of frustrations. In addition, this legal procedure is the object of translations within different contexts, including different actors participating to specific decision making processes. The empirical approach of this paper is based on case studies data and on the use of an innovative methodology called ‘Open Process Workshop’. This methodology consists in a structured workshop with key stakeholders, during which the legal procedure is questioned. Overall, we demonstrate that the focus on the legal procedure - and its translations within different decision making processes - allows systemic analysis providing deep understandings of controversies and reaffirming the interlinks between ‘the social’ and ‘the technical’ in such controversies. In addition, we argue that the methodology used fosters the production of innovative knowledge, mutual understanding and collective learning between the participants. [less ▲]

Detailed reference viewed: 67 (14 ULg)
Full Text
Peer Reviewed
See detailÉtude de nouveaux indices de détection de la réponse au hasard et de l’inattention selon différentes valeurs de l’habileté dans le contexte de la modélisation de Rasch
Béland, Sébastien; Raîche, Gilles; Magis, David ULg et al

in Mesure et Evaluation en Education (in press)

Certains étudiants peuvent répondre au hasard ou être inattentifs dans une situation de testing. Plusieurs approches ont déjà été développées pour détecter ce type de réponse. Parmi celles-ci ... [more ▼]

Certains étudiants peuvent répondre au hasard ou être inattentifs dans une situation de testing. Plusieurs approches ont déjà été développées pour détecter ce type de réponse. Parmi celles-ci, l’utilisation d’indices de détection (person-fit indexes) de patrons de réponses inappropriés est l’approche qui est la plus étudiée et qui semble la plus prometteuse. Dans le cadre de cette étude, nous nous concentrons sur trois indices de détection populaires qui présentent des caractéristiques permettant d’en faciliter l’interprétation: lz, ZU et ZW. Des études antérieures ont montré que ces trois indices sont fortement affectés par le fait que l’habileté d’un étudiant est estimée plutôt que réelle. Snijders (2001) a proposé une version corrigée de l’indice lz (nommée lz*) afin de tenir compte de cette difficulté. Magis, Béland et Raîche (2014) ont déjà corrigé deux autres indices selon l’approche de Snijders: U* et W*. Il reste cependant à analyser plus en détail le comportement des indices corrigés lz*, U* et W* et des indices standardisés lz, ZU et ZW. Pour ce faire, nous effectuons deux études selon différentes valeurs de l’habileté, soit une analyse des erreurs de type I des indices (probabilité de se tromper en identifiant un patron de réponses inapproprié) et une analyse de leur puissance de détection. Ces analyses permettront de démontrer que ce sont généralement les indices corrigés lz* et W* qui sont les plus intéressants à utiliser puisque leurs scores suivent approximativement la loi normale et qu’ils permettent de bien détecter la réponse au hasard et l’inattention. [less ▲]

Detailed reference viewed: 17 (0 ULg)
Full Text
Peer Reviewed
See detailLa formation du cycle de Guiron le Courtois. De l'archétype du "Roman de Méliadus" à la Vulgate
Morato, Nicola ULg

in Cadioli, Luca; Lecomte, Sophie (Eds.) Prolégomènes à l'édition intégrale du corpus du cycle de ‘Guiron le Courtois’ (in press)

Detailed reference viewed: 37 (1 ULg)
Full Text
Peer Reviewed
See detailDistribution et chronologie des attestations [du cycle de Guiron le Courtois]
Morato, Nicola ULg

in Cadioli, Luca; Lecomte, Sophie (Eds.) Prolégomènes à l'édition intégrale du corpus du cycle de ‘Guiron le Courtois’ (in press)

Detailed reference viewed: 14 (0 ULg)
Full Text
Peer Reviewed
See detailIntroduction. Medieval Francophone Literature and its path to Universality. Part I
Morato, Nicola ULg

in Morato, Nicola; Schoenaers, Dirk; Burgwinkle, William (Eds.) Medieval Francophone Literary Culture Outside France. Selected Papers of the Project Conferences (in press)

Detailed reference viewed: 27 (1 ULg)
See detailMedieval Francophone Literary Culture Outside France. Selected Papers of the Project Conferences
Morato, Nicola ULg; Schoenaers, Dirk; Burgwinkle, William

Book published by Brepols (in press)

Detailed reference viewed: 24 (0 ULg)
Full Text
Peer Reviewed
See detailArtù italiano e iberico. Appunti in margine ai volumi VII e VIII di ALMA
Morato, Nicola ULg

in Revista de Literatura Medieval (in press), 28

Detailed reference viewed: 19 (2 ULg)