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See detail“Aggregation Functions”, Cambridge University Press
Grabisch, Michel; Marichal, Jean-Luc UL; Mesiar, Radko et al

in Proc. of the 6th Int. Symposium on Intelligent Systems and Informatics (SISY 2008) (2008, September)

There is given a short overview of the monograph ”Aggregation Functions” (M. Grabisch, J. L. Marichal, R. Mesiar, E. Pap), Cambridge University Press (in press).

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See detailNumerical modelling of visco-plastic soft soils
Van Baars, Stefan UL

in 11th Baltic Sea Geotechnical Conference on Geotechnics in Maritime Engineering (2008, September)

In many cases geotechnical calculations are made with linear or non-linear elastoplastic soil models. The most common case in which these types of soil models are not sophisticated enough is during the ... [more ▼]

In many cases geotechnical calculations are made with linear or non-linear elastoplastic soil models. The most common case in which these types of soil models are not sophisticated enough is during the modelling of creep of soft soils. Most constitutive soil models modelling creep are based on volumic strain reduction over time. In this paper the creep is modelled through shear stress reduction (the viscous behaviour). The key point of viscous modelling is that this type of stress reduction (Mohr-circle squeezing) also takes place below the Coulomb failure line. In other words, viscosity is a sort of slow and rate-depending plasticity without reaching the Coulomb criterion; therefore also the word visco-plasticity can be used. This paper shows that visco-plastic modelling of soft soils will produce more realistic results and shows how this visco-plastic modelling works. [less ▲]

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See detailVertical Caisson Breakwaters Cyclically Loaded
Maccarini, F; De Groot, M; Van Baars, Stefan UL

in 11th Baltic Sea Geotechnical Conference on Geotechnics in Maritime Engineering (2008, September)

Aim of this paper is analysing the breakwater foundation behaviour observed during centrifuge tests performed at the laboratory of GeoDelft (The Netherlands). Dynamic centrifuge tests were performed on a ... [more ▼]

Aim of this paper is analysing the breakwater foundation behaviour observed during centrifuge tests performed at the laboratory of GeoDelft (The Netherlands). Dynamic centrifuge tests were performed on a model caisson breakwater, founded on medium-dense sand. The structure was subjected to cyclic horizontal loading simulating regular and irregular wave loading, until failure occurred. The tests were aimed at finding a critical failure mechanism, investigating the influence of the loading scheme and analysing the development of instantaneous pore pressures and residual pore pressures in the sandy subsoil. Test results showed high instantaneous values of excess pore pressures underneath the structure, not leading to a complete “liquefaction flow” failure. Dilation phenomena of sand induced local “recovering” of strength during each cycle and failure occurred according to a progressive mechanism with large cyclic strains. [less ▲]

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See detailBuilding a Map of Folksong Idioms with EsAC
Sagrillo, Damien UL

Scientific Conference (2008, September)

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See detailUnemployment and mental health in Luxembourg
Houssemand, Claude UL; Meyers, Raymond UL

Poster (2008, September)

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See detailA qualitative corpus-based study of lecture functions
Deroey, Katrien UL

Scientific Conference (2008, September)

Increasing student and lecturer mobility along with the spread of English as an academic lingua franca (Mauranen, 2006) means a growing number of university lecturers in Europe are delivering at least ... [more ▼]

Increasing student and lecturer mobility along with the spread of English as an academic lingua franca (Mauranen, 2006) means a growing number of university lecturers in Europe are delivering at least some lectures in English. Well-designed English for Academic Purposes (EAP) courses can help lecturers whose first language is not English in meeting this challenge and findings from corpus linguistic research on authentic lectures are invaluable in informing decisions about the development of such courses. However, a comprehensive corpus-based account of language use in English language lectures does not exist, although recent publications by Biber (2006) and Crawford Camiciottoli (2007) constitute significant contributions to such a description. This paper presents the results of a qualitative corpus-based study of common language functions in lectures (e.g. predicting, describing, reporting, interpreting, evaluating) as related to the overall purposes of lectures such as knowledge transfer and the socialization of students into disciplinary communities. The investigation is based on a manual analysis of lectures selected from the British Academic Spoken English (BASE) Corpus. In contrast to most existing studies, this study is motivated by the spoken language needs of lecturers rather than by student (listening comprehension) needs and is not restricted by a focus on pre-determined linguistic features that can be searched and quantified. The current non-quantified language description thus hopes to demonstrate the value of insights that can only come from reading and studying a corpus from a more global perspective using qualitative methods. Biber, D. (2006). University language: a corpus-based study of spoken and written registers. Studies in Corpus Linguistics 23. Amsterdam: John Benjamins Publishing Company. Crawford Camiciottoli, B. (2007). The language of business studies lectures. Amsterdam: John Benjamins. [less ▲]

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See detailOptimised recovery with a coordinated checkpoint/rollback protocol for domain decomposition applications
Besseron, Xavier UL; Gautier, Thierry

in Modelling, Computation and Optimization in Information Systems and Management Sciences. MCO 2008 (2008, September)

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See detailDisaggregation of bipolar-valued outranking relations
Meyer, Patrick; Marichal, Jean-Luc UL; Bisdorff, Raymond UL

in Le Thi, Hoai An; Bouvry, Pascal; Pham Dinh, Tao (Eds.) Modelling, Computation and Optimization in Information Systems and Management Sciences (2008, August 28)

In this article, we tackle the problem of exploring the structure of the data which is underlying a bipolar-valued outranking relation. More precisely, we show how the performances of alternatives and ... [more ▼]

In this article, we tackle the problem of exploring the structure of the data which is underlying a bipolar-valued outranking relation. More precisely, we show how the performances of alternatives and weights related to criteria can be determined from three different formulations of the bipolar-valued outranking relations, which are given beforehand. [less ▲]

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See detailBahnbrechende Leistungen. "Nobelpreis in Mathematik": Abelpreis an Thompson und Tits
Mortini, Raymond; Schlichenmaier, Martin UL

Article for general public (2008)

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See detailSchwierigkeit in Problemlöseszenarien. Was ist das und was macht es aus?
Greiff, Samuel UL; Funke, Joachim

Poster (2008, August 26)

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See detailFemmes entrepreneures et formation à distance: Quel impact sur leur sentiment d’efficacité personnelle? Etude du cas ELFE
Constantinidis, Christina UL

in AIPTLF (Ed.) Actes du 15e Congrès de l'AIPTLF. Entre tradition et innovation, comment transformons-nous l'univers du travail? (2008, August 20)

Cette communication s’inscrit dans le cadre du projet Elfe et vise à évaluer l’impact d’une formation à distance pour femmes créatrices et chefs d’entreprise sur leur sentiment d’efficacité personnelle ... [more ▼]

Cette communication s’inscrit dans le cadre du projet Elfe et vise à évaluer l’impact d’une formation à distance pour femmes créatrices et chefs d’entreprise sur leur sentiment d’efficacité personnelle, tel que défini par Bandura (1997). Nous situons notre intervention par rapport aux premier et deuxième niveaux d’évaluation d’une formation selon Kirkpatrick (1983), se rapportant respectivement à la satisfaction des apprenants et à leurs acquis, avec une attention particulière au sentiment d’efficacité personnelle. Notre méthodologie de recherche qualitative est basée sur dix études de cas approfondies auprès de femmes futures créatrices et chefs d’entreprise. Les résultats en termes de satisfaction des apprenantes sont nuancés et mettent en évidence différents éléments de contexte. Par contre, l’étude révèle qu’au terme de la formation à distance, les femmes entrepreneures de notre échantillon ont vu leur sentiment d’efficacité personnelle augmenter. Nous identifions différents facteurs explicatifs. Enfin, l’analyse met en évidence certains éléments relatifs au troisième niveau de Kirkpatrick, le transfert sur le terrain, ouvrant ainsi la route à de nouvelles pistes de recherche. Les implications managériales sont importantes. En effet, il nous semble crucial que notre formation s’inscrive dans une vision à long terme et, au-delà de développer les connaissances et compétences, contribue aussi et surtout à renforcer le sentiment d’efficacité personnelle des apprenantes par rapport à leurs capacités entrepreneuriales, facteur déterminant pour la performance présente et future de leurs entreprises. [less ▲]

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See detailNeubestimmungen des Politischen mit Hannah Arendt und Giorgio Agamben
Kohns, Oliver UL

in IASL Online (2008)

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See detailCommon File Format v1
Hendriks, Maxim; Kortenkamp, Ulrich; Kreis, Yves UL et al

Report (2008)

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See detailOrganismal and functional partitioning within natural microbial communities
Wilmes, Paul UL

Scientific Conference (2008, August)

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See detailThe Stability of Flood Defences on Permeable Soils: The London Avenue Canal Failures in New Orleans
Kanning, W; Van Baars, Stefan UL; Vrijling, J.K.

in Sixth International Conference on Case Histories in Geotechnical Engineering (2008, August)

The two failures of the London Avenue Canal floodwalls contributed largely to the flooding of central New Orleans due to hurricane Katrina. In this paper, both failures are analyzed and compared to each ... [more ▼]

The two failures of the London Avenue Canal floodwalls contributed largely to the flooding of central New Orleans due to hurricane Katrina. In this paper, both failures are analyzed and compared to each other since the flood defenses are both located on permeable soils. Photo’s observation and calculations are used for the analysis. Both failures are caused by the permeable sand layer below the floodwall that allowed high pore water pressures to develop below the floodwall. However, the south breach seems to be caused by the piping failure mechanism and the north breach by loss of stability. At the South breach, the impermeable top layer was thicker than at the North breach, increasing the stability. The North beach was less vulnerable for piping and the lack of stability caused a large breach. The London Avenue Canal failures are a clear yet tragic example of the failure of flood defenses on permeable soils. The failures show that multiple failure mechanism may occur and since there are many flood defenses on permeable soils world wide, the lessons from Katrina can be used to prevent future catastrophes. [less ▲]

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See detailNecessary and sufficient conditions for dynamical structure reconstruction of LTI networks
Goncalves, Jorge UL; Warnick, S.

in IEEE Transactions on Automatic Control (2008), 53(7), 1670-1674

This paper formulates and solves the network reconstruction problem for linear time-invariant systems. The problem is motivated from a variety of disciplines, but it has recently received considerable ... [more ▼]

This paper formulates and solves the network reconstruction problem for linear time-invariant systems. The problem is motivated from a variety of disciplines, but it has recently received considerable attention from the systems biology community in the study of chemical reaction networks. Here, we demonstrate that even when a transfer function can be identified perfectly from input–output data, not even Boolean reconstruction is possible, in general, without more information about the system.We then completely characterize this additional information that is essential for dynamical reconstruction without appeal to ad-hoc assumptions about the network, such as sparsity or minimality. [less ▲]

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