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See detailUniversity Competition and Transnational Education: The Choice of Branch Campus
Tampieri, Alessandro UL; Poyago-Theotoky, Joanna

E-print/Working paper (2014)

Detailed reference viewed: 50 (4 UL)
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See detailUniversity of California, Berkeley, Institute of European Studies (IES) Fall 2017 Newsletter
Institute of European Studies, UC Berkeley; Paravantis, Spero UL

Report (2018)

The Fall 2017 newsletter of the University of California, Berkeley, Institute of European Studies (IES). I was a Visiting Scholar at IES from August 2017 to Feb 2018, and from March 1st 2018, I will ... [more ▼]

The Fall 2017 newsletter of the University of California, Berkeley, Institute of European Studies (IES). I was a Visiting Scholar at IES from August 2017 to Feb 2018, and from March 1st 2018, I will become an IES Senior Fellow. My bio is on page 8, and summaries of my lectures are on page 30 (Migration) and 31 (WWI and WWII Reparations and European Integration). [less ▲]

Detailed reference viewed: 201 (4 UL)
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See detailUniversity of Luxembourg OA project: ORBilu
Pausch, Marie-Pierre UL; Park, Beth Anne UL

Conference given outside the academic context (2015)

Detailed reference viewed: 126 (24 UL)
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See detailThe University of Luxembourg: A National Excellence Initiative
Leprévost, Franck UL

in Altbach, Phil; Reisberg, Liz; Salmi, Jamil (Eds.) et al Accelerated Universities: A ideas and Money Combine to Build Academic Excellence (2018)

Detailed reference viewed: 34 (5 UL)
See detailUniversity of Stavanger
Mehra, Rajnish UL

Presentation (2011)

Detailed reference viewed: 6 (0 UL)
See detailUniversity of the Greater Region: Project experiences
Wille, Christian UL

Conference given outside the academic context (2014)

Detailed reference viewed: 32 (2 UL)
See detailUniversity of Venice
Mehra, Rajnish UL

Presentation (2015)

Detailed reference viewed: 19 (0 UL)
See detailUniversity of Zürich
Von Lilienfeld-Toal, Ulf UL

Presentation (2015, April)

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See detailUniversity Roots and Branches between ‘Glocalization’ and ‘Mondialisation’: Qatar’s (Inter)National Universities
Powell, Justin J W UL

in Wiseman, Alexander W.; Alromi, Naif H.; Alshumrani, Saleh (Eds.) Education for a Knowledge Society in Arabian Gulf Countries (2014)

Qatar’s higher education system is growing rapidly, as science in the Islamic world witnesses a contemporary renaissance. Steering a course toward becoming a “knowledge society,” Qatar and other countries ... [more ▼]

Qatar’s higher education system is growing rapidly, as science in the Islamic world witnesses a contemporary renaissance. Steering a course toward becoming a “knowledge society,” Qatar and other countries in the Arabian Gulf region are now home to dozens of universities. The establishment of many international offshore, satellite or branch campuses further emphasizes the international dynamism of higher education development there. The remarkable expansion of higher education in Qatar builds upon unifying two distinct strategies, both prevalent in capacity-building attempts worldwide. Firstly, Qatar seeks to cultivate human capital domestically through massive infrastructure investment and development of educational structures, including Qatar University. Secondly, Qatar seeks to match the strongest global universities through direct importation of existing organizational capacity, faculty and staff, and accumulated reputation. Local capacity in higher education and scientific productivity is built simultaneously with the on-going import of ideas and talent from different regions of the world. The relative youth of the higher education system and the state’s small geographic and demographic size are being compensated by considerable investments in the standard-bearing university—a national university taking root—simultaneously with hosting branches of eminent foreign higher education institutions, mainly on the Education City campus. Exemplifying extreme glocalization and mondialisation, Qatar has become a regional hub, bridging the traditional university strongholds in the West and the rising powerhouses in the East. [less ▲]

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See detailThe Unknown Bel-Val
Ganschow, Inna UL

Speeches/Talks (2019)

The speech was held as a guided tour through the university campus and surroundings of Belval in Esch-sur-Alzette. Looking for the traces of camps and other presence of ca. 4.000 soviet forced labourers ... [more ▼]

The speech was held as a guided tour through the university campus and surroundings of Belval in Esch-sur-Alzette. Looking for the traces of camps and other presence of ca. 4.000 soviet forced labourers engaged by the steel industry of Luxembourg in 1942-1944, the audience was invited to discuss about the collective memory and its selectiveness. [less ▲]

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See detailAn Unknown Input Fractional-Order Observer Design for Fractional-Order Glucose-Insulin System
Ndoye, Ibrahima UL; Voos, Holger UL; Darouach, Mohamed et al

in IEEE EMBS Conference on Biomedical Engineering and Sciences, Malaysia, 17th - 19th December, 2012 (2012)

In this paper, we introduce fractional-order derivatives into a generalized minimal model of glucose-insulin. A fractional-order state observer is designed for estimating the structure of a blood glucose ... [more ▼]

In this paper, we introduce fractional-order derivatives into a generalized minimal model of glucose-insulin. A fractional-order state observer is designed for estimating the structure of a blood glucose-insulin with glucose rate disturbance to show the complete dynamics of the glucose-insulin system where the fractional-order \alpha belonging to 0<\alpha<1. A nonlinear fractional-order unknown input observer strategy is used where the glucose rate disturbance is considered as an unknown input to the perspective dynamical system. The developed method provides the observer estimation algorithm for a glucose-insulin system with unknown time-varying glucose rate disturbance. The stability analysis of the fractional-order error system is completed and showed that the fractional-order observer design is as stable as their integer-order counterpart and guarantees the best convergence of the estimation error. Finally, numerical simulations are given to illustrate the effectiveness of the proposed method. [less ▲]

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See detailUnknown Input Functional Observers Design for Polytopic Discrete Time Systems
Bezzaoucha, Souad UL; Voos, Holger UL; Darouach, Mohemed

in Proceedings of 6th IEEE International Conference on Systems and Control (ICSC) 2017 (2017, May)

In this paper, a step by step algorithm is given to design functional unknown input observer for nonlinear discrete time systems under the Polytopic Takagi-Sugeno framework (also known as multiple models ... [more ▼]

In this paper, a step by step algorithm is given to design functional unknown input observer for nonlinear discrete time systems under the Polytopic Takagi-Sugeno framework (also known as multiple models systems). Applying the Lyapunov theory and the L2 attenuation, Linear Matrix Inequalities (LMI)s conditions are deduced which are solved for feasibility to obtain observer design matrices. To reject the effect of unknown input, classical approach of decoupling the unknown input for the linear case is used. A solver based solution is proposed. The novelty of the proposed approach consists in solving simultaneously both structural constraints and LMIs, which ensure a mean for the efficient design of the gains of the observers. To illustrate the proposed theoretical results, an application example of model reference tracking control applied to an electro-mechanical model of a motor with a time varying parameter is discussed. [less ▲]

Detailed reference viewed: 39 (1 UL)
Peer Reviewed
See detailUnkonventionelle politische Partizipation im Zeitverlauf – Hat die Bildungsexpansion zu einer politischen Mobilisierung beigetragen?
Hadjar, Andreas UL; Becker, Rolf

in Kolner Zeitschrift für Soziologie und Sozialpsychologie (2007), 59(3), 410-439

In Demokratien wird von vielen Seiten eine zunehmende Abkehr der Bürger und Bürgerinnen von Politik beklagt. Haben die Bildungsreformen der 1960er Jahre, zu deren Grundanliegen auch die Förderung ... [more ▼]

In Demokratien wird von vielen Seiten eine zunehmende Abkehr der Bürger und Bürgerinnen von Politik beklagt. Haben die Bildungsreformen der 1960er Jahre, zu deren Grundanliegen auch die Förderung politischen Engagements und die Erziehung zu mündigen Bürgerinnen und Bürgern gehörten, in diesem Punkt versagt? Im Rahmen dieses Beitrags wird der Frage nachgegangen, ob die Bildungsexpansion eine politische Mobilisierung zur Folge hatte, im Zuge derer unkonventionelle politische Partizipationsformen an Bedeutung gewonnen haben. Unter Nutzung kumulierter ALLBUS-Datensätze werden zunächst soziale Hintergrundmechanismen des Zusammenhangs zwischen Bildung und politischer Partizipation auf der individuellen Ebene betrachtet, um dann anhand einer simultanen Modellierung von Alters-, Perioden- und Kohorteneffekt unkonventionelle politische Partizipation im Zeitverlauf zu untersuchen. Im Ergebnis zeigen sich gleich bleibend starke Effekte des Bildungsniveaus sowie Hinweise, dass eine politische Mobilisierung stattgefunden hat. [less ▲]

Detailed reference viewed: 293 (0 UL)
See detailUnkritisch kritisch. Über die (Un-)möglichkeit einer Theorie Sozialer Arbeit als Kritik.
Neumann, Sascha UL

in Hartmann, Jutta; Hünersdorf, Bettina (Eds.) Was ist und wozu betreiben wir Kritik in der Sozialen Arbeit? Disziplinäre und interdisziplinäre Dis-kurse. (2013)

Detailed reference viewed: 81 (6 UL)
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See detailThe unlikely Carnot efficiency
Verley, Gatien UL; Esposito, Massimiliano UL; Willaert, Tim et al

in Nature Communications (2014)

The efficiency of an heat engine is traditionally defined as the ratio of its average output work over its average input heat. Its highest possible value was discovered by Carnot in 1824 and is a ... [more ▼]

The efficiency of an heat engine is traditionally defined as the ratio of its average output work over its average input heat. Its highest possible value was discovered by Carnot in 1824 and is a cornerstone concept in thermodynamics. It led to the discovery of the second law and to the definition of the Kelvin temperature scale. Small-scale engines operate in the presence of highly fluctuating input and output energy fluxes. They are therefore much better characterized by fluctuating efficiencies. In this study, using the fluctuation theorem, we identify universal features of efficiency fluctuations. While the standard thermodynamic efficiency is, as expected, the most likely value, we find that the Carnot efficiency is, surprisingly, the least likely in the long time limit. Furthermore, the probability distribution for the efficiency assumes a universal scaling form when operating close-to-equilibrium. We illustrate our results analytically and numerically on two model systems. [less ▲]

Detailed reference viewed: 343 (125 UL)
Peer Reviewed
See detailUnlinkable Communication
Fusenig, Volker UL; Staab, Eugen UL; Sorger, Ulrich UL et al

in Privacy, Security and Trust, 2008. PST '08. Sixth Annual Conference on (2008)

In this paper we present a protocol for unlinkable communication, i.e. where an attacker cannot map the sender and receiver node of a communication. Existing anonymity protocols either do not guarantee ... [more ▼]

In this paper we present a protocol for unlinkable communication, i.e. where an attacker cannot map the sender and receiver node of a communication. Existing anonymity protocols either do not guarantee unlinkability (e.g. Tor and Mix networks), or produce huge overhead -- the dining cryptographers network causes quadratic number of messages. Our protocol needs only a linear number of messages while it still guarantees unlinkability. We introduce a measure of unlinkability and show that our protocol offers the highest possible degree of unlinkability. We show how to use the protocol in practice by adapting it to internet and ad hoc communication. [less ▲]

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See detailUnlocking the Potential of Educationally Diverse Founding Teams for Firm Growth: The Moderating Role of New Venture Activities
Tryba, Anne UL; Patzelt, Holger; Breugst, Nicola

Scientific Conference (2018, April)

Detailed reference viewed: 69 (1 UL)
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See detailUnmanned aerial vehicles UAVs attitude, height, motion estimation and control using visual systems
Mondragon, Ivan F.; Olivares Mendez, Miguel Angel UL; Campoy, Pascual et al

in AUTONOMOUS ROBOTS (2010), 29(1), 17-34

This paper presents an implementation of an aircraft pose and motion estimator using visual systems as the principal sensor for controlling an Unmanned Aerial Vehicle (UAV) or as a redundant system for an ... [more ▼]

This paper presents an implementation of an aircraft pose and motion estimator using visual systems as the principal sensor for controlling an Unmanned Aerial Vehicle (UAV) or as a redundant system for an Inertial Measure Unit (IMU) and gyros sensors. First, we explore the applications of the unified theory for central catadioptric cameras for attitude and heading estimation, explaining how the skyline is projected on the catadioptric image and how it is segmented and used to calculate the UAV's attitude. Then we use appearance images to obtain a visual compass, and we calculate the relative rotation and heading of the aerial vehicle. Additionally, we show the use of a stereo system to calculate the aircraft height and to measure the UAV's motion. Finally, we present a visual tracking system based on Fuzzy controllers working in both a UAV and a camera pan and tilt platform. Every part is tested using the UAV COLIBRI platform to validate the different approaches, which include comparison of the estimated data with the inertial values measured onboard the helicopter platform and the validation of the tracking schemes on real flights. [less ▲]

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See detailThe Unnoticed Corssroads of Russian-Luxembourgish History
Ganschow, Inna UL

Presentation (2018, October 02)

Detailed reference viewed: 18 (1 UL)
See detailUnordentliche Verhältnisse. Familie als Argument in Suppliken und Bittbriefen
Gerstenmayer, Christina; Tatarinov, Juliane UL

in Arbeitskreis Repräsentation des SFB 600 (Ed.) Die 'andere' Familie. Repräsentationskritische Analysen von der Frühen Neuzeit bis zur Gegenwart (2013)

Detailed reference viewed: 25 (3 UL)