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See detailDigitalization in Construction, Computer-based Design for Structural Elements, PArt 2: Analyses and Validation of Compliance to EuroCodes
Schäfer, Markus UL; Bender, Michel; Zahlten, Wolfhard et al

Learning material (2021)

A classic structural analysis is characterized by the usage of a wide spectrum of manual, specialized analysis methods. An engineer has to break down the complex problem into small manageable sub-problems ... [more ▼]

A classic structural analysis is characterized by the usage of a wide spectrum of manual, specialized analysis methods. An engineer has to break down the complex problem into small manageable sub-problems. This procedure will be completely superseded by the advent of numerical methods. A full model of the spatial structure will be built up. A similar revolution has already begun by the introduction of finite shell and volume elements into commercially available FE software. The idea is that these models are closer to reality and allow us to capture both global and local effects in one single comprehensive model. This, however, introduces modelling questions and numerical effects, which are explicitly excluded from simplified theory, and questions arise regarding the trustworthiness of these results. Shell elements have already been fairly well established in practical engineering. The next step could be the use of volume elements to overcome certain restriction inherent in shell formulations. One driving force for this tendency is BIM (Building Information Modelling). Here the geometrical model is, like nature itself, fully 3D. It can be directly translated into the Finite Element Method (FEM). However, structural design in the 27 EU member states and 4 EFTA countries has to be performed according to the Eurocodes (EC), representing harmonized European Standards (EN) for the structural design. These design codes regulate essential requirements regarding mechanical resistance and stability as well as safety aspects. The current Eurocodes essentially stipulate engineering design models which can easily be transferred to classical structural analyses, but often do not give comprehensive references to the application and evaluation of advanced numerical simulations. The application of associated software products is not regulated by norms. This situation often results in discussions and different interpretations of the design results. Ultimately, false computational assumptions and misinterpretations can lead to damages and unsafe designs. Guidance for the verification of the software results is required and the link to the current and upcoming second generation of Eurocodes is also presented by the project. In parallel the possibilities by digitalization in construction by Building Information Modelling and the transfer of data from the architectural model to the structural model have been investigated [less ▲]

Detailed reference viewed: 56 (1 UL)
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See detailDigitisation of musicology at the University of Luxembourg
Sagrillo, Damien UL

Scientific Conference (2019, April 13)

One of the aims of the new government of Luxembourg is to enhance digitisation in all dimensions of daily life. Since years already the literature archive runs a dictionary of Luxembourgish authors. I ... [more ▼]

One of the aims of the new government of Luxembourg is to enhance digitisation in all dimensions of daily life. Since years already the literature archive runs a dictionary of Luxembourgish authors. I will present two projects funded by the Ministry of Culture aiming also to promote and to valorise the musical heritage of Luxembourg by compiling an Encyclopedia of Luxembourg Musicians and by editing the music of Luxembourgish composer Laurent Menager. [less ▲]

Detailed reference viewed: 96 (4 UL)
See detailDigitising the Humanities: World War I Digital Exhibitions
Camarda, Sandra UL

Presentation (2019, May 22)

Detailed reference viewed: 92 (3 UL)
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See detailDigitized-counterdiabatic quantum approximate optimization algorithm
Chandarana, P.; Hegade, N. N.; Paul, K. et al

in Physical Review Research (2021)

The quantum approximate optimization algorithm (QAOA) has proved to be an e ective classical-quantum algorithm serving multiple purposes, from solving combinatorial optimization problems to finding the ... [more ▼]

The quantum approximate optimization algorithm (QAOA) has proved to be an e ective classical-quantum algorithm serving multiple purposes, from solving combinatorial optimization problems to finding the ground state of many-body quantum systems. Since QAOA is an ansatz-dependent algorithm, there is always a need to design ansatz for better optimization. To this end, we propose a digitized version of QAOA enhanced via the use of shortcuts to adiabaticity. Specifically, we use a counterdiabatic (CD) driving term to design a better ansatz, along with the Hamiltonian and mixing terms, enhancing the global performance. We apply our digitizedcounterdiabatic QAOA to Ising models, classical optimization problems, and the P-spin model, demonstrating that it outperforms standard QAOA in all cases we study. [less ▲]

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See detailDigitizing of Research and Teaching
Plapper, Peter UL

Scientific Conference (2020, September 05)

The current Covid-19 crisis impacts all manufacturing areas and new processes are sought. This presentation provides the audience with three examples related to assembly work instructions, logistics data ... [more ▼]

The current Covid-19 crisis impacts all manufacturing areas and new processes are sought. This presentation provides the audience with three examples related to assembly work instructions, logistics data handling and manufacturing education, for which innovative ways to obtain access to context sensitive data based on digital tools are investigated. Augmented Reality (AR) and Virtual Reality (VR) facilitate access to relevant manufacturing information. In order to provide logistic warehouse workers with immediate access to shipping documents, to avoid paper print-outs, and to eliminate error-prone typing of information, critical information should be handled digitally and hands-free. To support logistic workers to efficiently document, register and trace receipt, storage or delivery of goods, the presented solution is built on hands-free digital tools with AR technology in commercially available smart glasses. Similarly, workers who execute complex assembly operations frequently require either assistance or support for the next assembly step. Depending on the context, relevant assembly process information is automatically displayed together with the environment in the AR smart glass. Thus, the operator is supported by the presented hands-free-tool to complete the next challenging tasks. Currently, teaching is being transferred from physical class-room teaching to remote or hybrid education. For this purpose, Virtual Reality (VR) provides a very welcome opportunity to complement in-presence teaching with exposure to examples of real manufacturing operations captured in videos of industrial case studies. Students apply learnings from theoretical classes to manufacturing case studies by identifying best practices and also recognizing waste. The presentation shares experience in teaching of lean methods based on AR technology to graduate engineering students. [less ▲]

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See detailDiglwssia kai Glwssiki Metakinisi: Alvanoi mathites sto elliniko scholeio.
Gogonas, Nikolaos UL

in 9th International Conference 'Intercultural Education: Greek as a foreign language" University of Patras, Greece. (2006)

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See detailLa dignité de l'être humain dans la jurisprudence constitutionnelle allemande
Heuschling, Luc UL

in Burgorgue-Larsen, Laurence (Ed.) La dignité saisie par les juges en Europe (2010)

Detailed reference viewed: 184 (2 UL)
See detailLa dignité humaine – une notion dépassée?
Lehners, Jean-Paul UL

in Weitzel, Luc (Ed.) L'Europe des droits fondamentaux : En Hommage à Albert Weitzel (2013)

Detailed reference viewed: 44 (5 UL)
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See detailDignity as Discursive Enactment of Tradition: A Narrative Approach on Tradition in Family Business
Adiguna, Rocky UL

Scientific Conference (2017, August 06)

Our current understanding of tradition in organizations remain very limited. The lack of studies that take tradition as the main focus have made this concept overlooked as an important organizational ... [more ▼]

Our current understanding of tradition in organizations remain very limited. The lack of studies that take tradition as the main focus have made this concept overlooked as an important organizational feature. In this paper, I set out to address this issue by exploring how tradition is (re)produced and (re)interpreted in a century-old family-owned hotel. By adopting a narrative approach as an interpretive lens, I found that the reproduction and reinterpretation of tradition is discursively mediated through the notion of dignity. In particular, this paper argues for three forms of 'doing' dignity: first, dignity-by-category that is enacted through the discursive use of category making; second, dignity-by-sanctity that is enacted through sanctifying particular relations; and third, dignity-by-authority that is enacted through the exercise of authority to compel others to acknowledge one's dignity. To extend it further, the possibility of conceptual relations between tradition, dignity, and narrative identity is discussed. Drawing from the broader fields of social sciences, this study contributes to the scarce literature on tradition theory and dignity in organizations. [less ▲]

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See detailDigraph3 Documentation: Advanced topics
Bisdorff, Raymond UL

Learning material (2022)

In this part of the Digraph3 documentation, we provide an insight in computational enhancements one may get when working in a bipolar-valued epistemic logical framework, like easily coping with missing ... [more ▼]

In this part of the Digraph3 documentation, we provide an insight in computational enhancements one may get when working in a bipolar-valued epistemic logical framework, like easily coping with missing data and uncertain criterion significance weights, computing valued ordinal correlations between bipolar-valued outranking digraphs, solving bipolar-valued Berge kernel equation systems, and testing for stability of outranking statements when facing only ordinal criteria significance weights. [less ▲]

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See detailDigraph3 Python Software Collection
Bisdorff, Raymond UL

Software (2020)

Python3 resources for implementing decision aid algorithms in the context of a bipolar-valued outranking approach. These computing resources are useful in the field of Algorithmic Decision Theory and more ... [more ▼]

Python3 resources for implementing decision aid algorithms in the context of a bipolar-valued outranking approach. These computing resources are useful in the field of Algorithmic Decision Theory and more specifically in outranking based Multiple Criteria Decision Aid (MCDA). They provide the practical tools for a Master Course on Algorithmic Decision Theory at the University of Luxembourg. [less ▲]

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See detailDihedral Galois representations and Katz modular forms
Wiese, Gabor UL

in Documenta Mathematica (2004), 9

We show that any two-dimensional odd dihedral representation \rho over a finite field of characteristic p>0 of the absolute Galois group of the rational numbers can be obtained from a Katz modular form of ... [more ▼]

We show that any two-dimensional odd dihedral representation \rho over a finite field of characteristic p>0 of the absolute Galois group of the rational numbers can be obtained from a Katz modular form of level N, character \epsilon and weight k, where N is the conductor, \epsilon is the prime-to-p part of the determinant and k is the so-called minimal weight of \rho. In particular, k=1 if and only if \rho is unramified at p. Direct arguments are used in the exceptional cases, where general results on weight and level lowering are not available. [less ▲]

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See detailDihedral Universal Deformations
Deo, Shaunak UL; Wiese, Gabor UL

in Research in Number Theory (2020), 6

This article deals with universal deformations of dihedral representations with a particular focus on the question when the universal deformation is dihedral. Results are obtained in three settings: (1 ... [more ▼]

This article deals with universal deformations of dihedral representations with a particular focus on the question when the universal deformation is dihedral. Results are obtained in three settings: (1) representation theory, (2) algebraic number theory, (3) modularity. As to (1), we prove that the universal deformation is dihedral if all infinitesimal deformations are dihedral. Concerning (2) in the setting of Galois representations of number fields, we give sufficient conditions to ensure that the universal deformation relatively unramified outside a finite set of primes is dihedral, and discuss in how far these conditions are necessary. As a side-result, we obtain cases of the unramified Fontaine-Mazur conjecture. As to (3), we prove a modularity theorem of the form `R=T' for parallel weight one Hilbert modular forms for cases when the minimal universal deformation is dihedral. [less ▲]

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See detailDihedral Universal Deformations
Wiese, Gabor UL

Presentation (2019, February 19)

Detailed reference viewed: 70 (1 UL)
See detailDikrech - eng Stad am Mëttelalter [Virtrag vum 25. November 2010]
Pauly, Michel UL

in Folia synoptica. Livre-souvenir publié à l'occasion du 750e anniversaire de l'Affranchissement de la Ville de Diekirch 1260-2010 (2011)

Detailed reference viewed: 40 (2 UL)
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See detaildilecti fideles nostri? Niederadelige Herrschaftsbildung im 13. Jahrhundert: Der Aufstieg der Vögte von Hunolstein.
Uhrmacher, Martin UL

in Ebeling, Dietrich; Henn, Volker; Holbach, Rudolf (Eds.) et al Landesgeschichte als multidisziplinäre Wissenschaft. Festschrift für Franz Irsigler zum 60. Geburtstag. (2001)

Detailed reference viewed: 87 (2 UL)