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See detailPulse-Based Control Using Koopman Operator Under Parametric Uncertainty
Sootla, Aivar; Ernst, Damien ULg

in IEEE Transactions on Automatic Control (in press)

In applications, such as biomedicine and systems/synthetic biology, technical limitations in actuation complicate implementation of time-varying control signals. In order to alleviate some of these ... [more ▼]

In applications, such as biomedicine and systems/synthetic biology, technical limitations in actuation complicate implementation of time-varying control signals. In order to alleviate some of these limitations, it may be desirable to derive simple control policies, such as step functions with fixed magnitude and length (or temporal pulses). In this technical note, we further develop a recently proposed pulse-based solution to the convergence problem, i.e., minimizing the convergence time to the target exponentially stable equilibrium, for monotone systems. In particular, we extend this solution to monotone systems with parametric uncertainty. Our solutions also provide worst-case estimates on convergence times. Furthermore, we indicate how our tools can be used for a class of non-monotone systems, and more importantly how these tools can be extended to other control problems. We illustrate our approach on switching under parametric uncertainty and regulation around a saddle point problems in a genetic toggle switch system. [less ▲]

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See detailBesides Decorum: Notes on Formality
Gillen, Todd Jonathan ULg

in Dorn, Andreas (Ed.) Filtering Decorum – Facing Reality (in press)

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See detailWriting productive traditions: the emergence of the monumental Triumph Scene at Thebes
Gillen, Todd Jonathan ULg

in Gillen, Todd Jonathan (Ed.) (Re)productive Traditions in Ancient Egypt (in press)

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See detailMusikerbiographien und -autobiographien
Viehöver, Vera ULg

in Jahn, Bernhard (Ed.) Handbuch der Musik des Barock, Bd. 5: Musik in den Künsten und Wissenschaften der Barockzeit (in press)

article sur les autobiographies de musiciens dans une encyclopédie en 6 volumes consacrée à la musique à l'âge baroque

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See detailIntroduction: (Re)productive Traditions, Cultural Transmission and Egyptology
Gillen, Todd Jonathan ULg

in Gillen, Todd Jonathan (Ed.) (Re)productive Traditions in Ancient Egypt (in press)

Detailed reference viewed: 53 (8 ULg)
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See detailGreek and Latin in the Roman World (100 to 700 AD)
Rochette, Bruno ULg

in Pelttari, Aaron; Kelly, Gavin (Eds.) Cambridge History of Later Latin Literature (in press)

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See detailReliability of unipodal and bipodal counter movement jump landings in a recreational male population
Schwartz, Cédric ULg; Forthomme, Bénédicte ULg; Paulus, Julien ULg et al

in European Journal of Sport Science (in press)

Movement patterns during landing have been suggested to be related to injury risk. The purpose of this study was to determine the inter-session reliability of kinematic variables and ground reaction ... [more ▼]

Movement patterns during landing have been suggested to be related to injury risk. The purpose of this study was to determine the inter-session reliability of kinematic variables and ground reaction forces during landing in a population of male recreational athletes after a counter movement jump. Both unipodal and bipodal landings were evaluated. Furthermore, the possibility to improve landing reliability with a verbal instruction was also studied. Twenty- four male volunteers with no history of lower-extremity trauma were randomly assigned to two groups (with and without verbal landing instruction). An optoelectronic 3D system and force plates were used to measure the lower-limb joint angles and the ground reaction forces during landing. Intraclass correlation values show moderate to excellent inter-session reliability for the bipodal task (ICC average: 0.80, range: 0.46 to 0.97) and poor to excellent reliability for the unipodal task (ICC average: >0.75, range: 0.20 to 0.95). However, large standard errors of measurement values at the ankle joint at impact (27.6 ± 11.5°) and for the vertical ground reaction forces (394 ± 1091 N) show that some variables may not be usable in practice. The verbal instruction had a negative effect on the reliability of unipodal landing but improved the reliability of bipodal landing. These findings show that the reliability of a landing task is influenced by its motor complexity as well as the instruction given to the subject. [less ▲]

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See detailCombined Local and Centralized Voltage Control in Active Distribution Networks
Soleimani Bidgoli, Hamid ULg; Van Cutsem, Thierry ULg

in IEEE Transactions on Power Systems (in press)

A two-level real-time voltage control scheme is proposed to keep voltages within specified limits in distribution grids using Distributed Generation Units (DGUs). It combines a local and a centralized ... [more ▼]

A two-level real-time voltage control scheme is proposed to keep voltages within specified limits in distribution grids using Distributed Generation Units (DGUs). It combines a local and a centralized control of their reactive powers. The local control provides fast response after a disturbance, reducing its impact and enhancing voltage quality. The centralized control uses measurements collected throughout the network to bring the voltages inside tighter limits and balance the various DGU contributions. To this purpose, it adjusts in a coordinated way their reactive power set-points, taking into account the local controls. This discrete control solves at each time step a multi-time-step constrained optimization inspired of Model Predictive Control. The method effectiveness is demonstrated on a 75-bus test system hosting 22 DGUs. [less ▲]

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See detailMultiple Gas-Phase Conformations of a Synthetic Linear Poly(acrylamide) Polymer Observed Using Ion Mobility-Mass Spectrometry
Haler, Jean ULg; Far, Johann ULg; Aqil, Abdelhafid ULg et al

in Journal of the American Society for Mass Spectrometry (in press)

Ion mobility-mass spectrometry (IM-MS) has emerged as a powerful separation and identification tool to characterize synthetic polymer mixtures and topologies (linear, cyclic, star-shaped ... [more ▼]

Ion mobility-mass spectrometry (IM-MS) has emerged as a powerful separation and identification tool to characterize synthetic polymer mixtures and topologies (linear, cyclic, star-shaped,...). Electrospray coupled to IM-MS already revealed the coexistence of several charge state-dependent conformations for a single charge state of biomolecules with strong intramolecular interactions, even when limited resolving power IM-MS instruments were used. For synthetic polymers, the sample's polydispersity allows the observation of several chain lengths. A unique collision cross-section (CCS) trend is usually observed when increasing the degree of polymerization (DP) at constant charge state, allowing the deciphering of different polymer topologies. In this paper, we report multiple coexisting CCS trends when increasing the DP at constant charge state for linear poly(acrylamide) PAAm in the gas phase. This is similar to observations on peptides and proteins. Biomolecules show in addition population changes when collisionally heating the ions. In the case of synthetic PAAm, fragmentation occurred before reaching the energy for conformation conversion. These observations, which were made on two different IM-MS instruments (SYNAPT G2 HDMS and high resolution multi-pass cyclic T-Wave prototype from Waters), limit the use of ion mobility for synthetic polymer topology interpretations to polymers where unique CCS values are observed for each DP at constant charge state. [less ▲]

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See detailDie zoroastrisch-mittelpersische Manuskriptologie
Ferrer-Losilla, Joan Josep ULg

in Paul, Ludwig (Ed.) 2. Bandes des Handbuches der Iranistik (in press)

Ce chapitre d’ouvrage montre les résultats de ma recherche sur les manuscrits pehlevis. Après une introduction générale au contexte dans lequel la littérature en moyen-perse zoroastrien a été transmise ... [more ▼]

Ce chapitre d’ouvrage montre les résultats de ma recherche sur les manuscrits pehlevis. Après une introduction générale au contexte dans lequel la littérature en moyen-perse zoroastrien a été transmise, on indique les centres où les manuscrits sont copiés (époques, lieux et familles de scribes) et des informations sur les codices (copistes, contenu et classification paléographique), sur les matériaux (format, papier et encre) et, finalement, sur la nécessité de la numérisation des manuscrits pehlevis. [less ▲]

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See detailPalaeographic Considerations of the Illuminated manuscripts of the Zoroastrian Long Liturgy
Ferrer-Losilla, Joan Josep ULg

in Sheffield, Dan (Ed.) Ek Jñānno Bhaṇḍār – A Treasury of Knowledge: Iranian, Persian, and Indian Studies Presented in Honour of the 150th Anniversary of the First Dastoor Meherjirana Library (in press)

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See detailTemas en *-a- y temas en *-aya-: historia, evolución y sincretismo de las desinencias verbales del persa medio y del parto
Ferrer-Losilla, Joan Josep ULg

Book published by Sociedad de Estudios Iranios y Turanios (in press)

Cet ouvrage constitue une révision, une réfection et une mise à jour de ma thèse soutenue en 2013 à l’Université de Salamanque. Après une introduction aux sources du moyen-perse et du parthe (dans toutes ... [more ▼]

Cet ouvrage constitue une révision, une réfection et une mise à jour de ma thèse soutenue en 2013 à l’Université de Salamanque. Après une introduction aux sources du moyen-perse et du parthe (dans toutes ses variantes), j’ai fait une étude philologique des différents témoignages afin de classifier les différentes catégories verbales. En outre, j’analyse les thèmes verbaux du moyen-iranien occidental avec une classification diachronique et synchronique. Finalement, j’ai fait une description de l’histoire qui rend compte de l’évolution des terminaisons verbales depuis l’iranien ancien jusqu’au moyen-iranien occidental. [less ▲]

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See detailThe Liturgical Widēwdād manuscript 4010 (Ave 977-978)
Cantera, Alberto; Ferrer-Losilla, Joan Josep ULg; Zolfeghari, Dorost

Book published by Sociedad de Estudios Iranios y Turanios (in press)

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See detailA biased random key genetic algorithm applied to the electric distribution network reconfiguration problem
de Faria Jr., Haroldo; Resende, Mauricio; Ernst, Damien ULg

in Journal of Heuristics (in press)

This work presents a biased random-key genetic algorithm (BRKGA) to solve the electric distribution network reconfiguration problem (DNR). The DNR is one of the most studied combinatorial optimization ... [more ▼]

This work presents a biased random-key genetic algorithm (BRKGA) to solve the electric distribution network reconfiguration problem (DNR). The DNR is one of the most studied combinatorial optimization problems in power system analysis. Given a set of switches of an electric network that can be opened or closed, the objective is to select the best configuration of the switches to optimize a given network objective while at the same time satisfying a set of operational constraints. The good performance of BRKGAs on many combinatorial optimization problems and the fact that it has never been applied to solve DNR problems are the main motivation for this research. A BRKGA is a variant of random-key genetic algorithms, where one of the parents used for mating is biased to be of higher fitness than the other parent. Solutions are encoded by using random keys, which are represented as vectors of real numbers in the interval (0,1), thus enabling an indirect search of the solution inside a proprietary search space. The genetic operators do not need to be modified to generate only feasible solutions, which is an exclusive task of the decoder of the problem. Tests were performed on standard distribution systems used in DNR studies found in the technical literature and the performance and robustness of the BRKGA were compared with other GA implementations. [less ▲]

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See detailSanti e re nelle feste francesi del 1622. Il Trionfo della luce sulla terra
De Marco, Rosa ULg

in Cousinié, Frédéric; Lemoine, Annick; Virol, Michèle (Eds.) Soleils baroques. La Gloire de Dieu et des Princes en représentation dans l’Europe moderne (in press)

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See detailÉloquence du corps et gymnastique de l’esprit. Le sport et le jeu dans les livres d’emblèmes en France (XVIe-XVIIe siècles)
De Marco, Rosa ULg

in Belmas, Élisabeth; Turcot, Laurent (Eds.) JEUX, SPORTS ET LOISIRS EN FRANCE À L’ÉPOQUE MODERNE (16E-19E SIÈCLES) (in press)

La communication veut aborder le thème du jeu et du sport du point de vue de l'emblème, genre littéraire et artistique en vogue en Europe à partir du XVIe siècle, qui lie le texte et l'image pour exprimer ... [more ▼]

La communication veut aborder le thème du jeu et du sport du point de vue de l'emblème, genre littéraire et artistique en vogue en Europe à partir du XVIe siècle, qui lie le texte et l'image pour exprimer des concepts moraux. Le sport et le jeu mettant en scène dans un espace et un temps déterminés les situations les plus communes de l’existence, offrent au moraliste des riches arguments pour son discours : la victoire, le prix, l’injustice, l’honnêteté, la compétition, la passion, la sociabilité, les vices et les vertus. L’intensité symbolique des représentations de jeu et de sport accrue par le langage emblématique sera soulignée dans la communication afin de comprendre le message politique ou moral ancré à ces activités. Toutefois, il nous est à cœur de comprendre, à travers l’étude de l’emblème, les relations entre le corps et l’esprit telles qui sont perçues au début de l’âge moderne. [less ▲]

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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 ▲]

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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 ▲]

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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: 36 (6 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: 29 (0 ULg)