References of "2008"
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See detailGeodetic measurements of postglacial adjustments in Greenland
Khan, S. A.; Wahr, J.; Leuliette, E. et al

in Journal of Geophysical Research (2008)

We analyze data from seven continuous Global Positioning System (GPS) receivers and one tide gauge, all located along the edge of the Greenland ice sheet, to determine vertical uplift rates. We compare ... [more ▼]

We analyze data from seven continuous Global Positioning System (GPS) receivers and one tide gauge, all located along the edge of the Greenland ice sheet, to determine vertical uplift rates. We compare our results with predictions based on the ICE-5G deglaciation model of Peltier (2004). Results from the GPS receiver at Kellyville (-1.2 ± 1.1 mm/a) and from the tide gauge at Nuuk (-2.2 ± 1.3 mm/a), indicate that ICE-5G overestimates the subsidence rates at those locations by 2.1 and 1.1 mm/a, respectively. Kellyville and Nuuk are located along the southwestern margin of the Greenland ice sheet, and the observed negative uplift rates are consistent with independent evidence that the ice margin along the southwestern edge readvanced during the last ~8 ka to its current position. The ICE-5G glaciation-deglaciation history includes a readvance between the latitudes of 62°N and 72°N. The GPS measurements suggest the ICE-5G readvance may be too large or mistimed. Our GPS results at Qaqortoq, located at the southern tip of Greenland, suggest a secular subsidence rate of 􏰀0.3 ± 1.1 mm/a, while ICE-5G predicts an uplift rate of 1.0 mm/a. ICE-5G assumes no ice sheet readvance in south Greenland, including no readvance of the Qassimiut lobe. The difference of 1.3 ± 1.1 mm/a can tentatively be explained as due to a ~33 km readvance of the Qassimiut lobe during the last ~3 ka. For the other GPS sites, the observed/predicted uplift rates are 3.6 ± 1.1/-0.1 mm/a at Thule, 0.0 ± 1.1/2.0 mm/a at Scoresbysund, and -0.4 ± 1.1/-1.7 mm/a at Kulusuk. For Thule, Kulusuk, and Scoresbysund the differences between the observed and predicted rates are on the order of 1.3 – 3.7 mm/a, though with opposite signs, and indicate that ICE-5G does not exactly reproduce the correct rebound signal at those locations. [less ▲]

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See detailCalibration of households preference for open-spaces from an urban cellular automata model: method and application to Dijon
Caruso, Geoffrey UL; Hilal, Mohamed

in Foltête, Jean-Christophe (Ed.) Actes des Huitièmes Rencontres de Théo Quant (2008)

We propose a calibration method for a residential growth model that is grounded on a microeconomic cellular automaton. This model can be seen as a spatial and dynamic representation of an urban economic ... [more ▼]

We propose a calibration method for a residential growth model that is grounded on a microeconomic cellular automaton. This model can be seen as a spatial and dynamic representation of an urban economic model with neighbourhood externalities. A 2D spatial equilibrium of residential locations is obtained stepwise through time instead of being a one-shot instantaneous equilibrium. Previous research work showed that the model can produce more or less dense and fragmented urban patterns depending on the preference of households for open space. We propose here a method for calibrating those preferences from simulations of the model and land rents observed within the Dijon urban area. More precisely, equilibrium properties of the model are used to derive the elasticity of open-space preferences. Then simulations are used to estimate the neighbourhood distance to which open-space are valued by households. Our first results tend to support our residential behaviour assumptions and tend to be in accordance with results obtained with more classic methods. Further methodological improvements are however needed. [less ▲]

Detailed reference viewed: 70 (3 UL)
See detailBildungs- und Berufsberatung für Jugendliche mit Migrationshintergrund gegen Ende der Schulpflicht.
Wieser, Regine; Dornmayr, Helmut; Neubauer, Barbara et al

Report (2008)

Detailed reference viewed: 46 (2 UL)
See detailDie Rechnungsbücher der Stadt Luxemburg. Zweites Heft: 1400-1430
Moulin, Claudine; Pauly, Michel UL

Book published by Université du Luxembourg (2008)

Detailed reference viewed: 73 (1 UL)
See detailCapacity and Gain Analysis of a Reconfigurable MEMS Antenna
Mowlér, Marc; Khalid, Bilal; Lindmark, Björn et al

in Nordic Conference on Radio Science and Communications (RVK) (2008)

Detailed reference viewed: 112 (0 UL)
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See detailOptimal Interconnection of Ad Hoc Injection Networks
Danoy, Grégoire UL; Alba, Enrique; Bouvry, Pascal UL

in Journal of Interconnection Networks (2008), 9(3), 277297

Detailed reference viewed: 127 (5 UL)
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See detailTAO: Paving the Way New Assessment Instruments using an open and versatile Computer-Based Platform
Latour, Thibaud; Martin, Romain UL; Plichart, P. et al

in International Journal of Psychology (2008), 43

Detailed reference viewed: 90 (0 UL)
See detailJohann Heinrich Pestalozzi
Tröhler, Daniel UL

Book published by Haupt/UTB (2008)

Pestalozzi ist es maßgeblich zu verdanken, dass heute alle westlichen Gesellschaften die Ansicht teilen, ihre sozialen Probleme seien über Erziehung und Schulbildung zu lösen und so eine bessere Zukunft ... [more ▼]

Pestalozzi ist es maßgeblich zu verdanken, dass heute alle westlichen Gesellschaften die Ansicht teilen, ihre sozialen Probleme seien über Erziehung und Schulbildung zu lösen und so eine bessere Zukunft zu erwarten. Der beispiellose Ausbau der westlichen Schulsysteme in den letzten 200 Jahren wäre ohne diese Überzeugung undenkbar gewesen. Daniel Tröhler erklärt den intellektuellen Werdegang des berühmten Schweizers im Kontext seiner Zeit. [less ▲]

Detailed reference viewed: 113 (1 UL)
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See detailFeedback Reduction in Uplink MIMO OFDM Systems by Chunk Optimization
Jorswieck, Eduard; Sezgin, Aydin; Ottersten, Björn UL et al

in EURASIP Journal on Applied Signal Processing (2008)

Detailed reference viewed: 132 (0 UL)
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See detailTowards a Proactive Learning Management System Using Early Activity Detection
Coronado, Sergio; Zampunieris, Denis UL

in SITE08 - Society for Information Technology & Teacher Education International Conference (2008)

This report shows some findings of a study conducted on graduate level project management course using a simple Learning Management System (LMS) test-case interaction. Statistical analysis techniques were ... [more ▼]

This report shows some findings of a study conducted on graduate level project management course using a simple Learning Management System (LMS) test-case interaction. Statistical analysis techniques were used to observe if students who had more interaction in the LMS online activities and content access, were more likely to succeed in the learning experience. Furthermore, this paper describes the concepts and the methodological approach designed to study how to early trigger the LMS user’s interaction. [less ▲]

Detailed reference viewed: 150 (14 UL)
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See detailOn the renormalized volume of hyperbolic 3-manifolds
Krasnov, Kirill; Schlenker, Jean-Marc UL

in Communications in Mathematical Physics (2008), 279(3), 637--668

Detailed reference viewed: 152 (2 UL)
See detailDie Rechnungsbücher der Stadt Luxemburg. Drittes Heft: 1444-1453
Moulin, Claudine; Pauly, Michel UL

Book published by CLUDEM (2008)

Detailed reference viewed: 75 (1 UL)
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See detailNuovo DRM Paradiso: Designing a Secure, Verified, Fair Exchange DRM Scheme
Torabi Dashti, Mohammad; Krishnan Nair, Srijith; Jonker, Hugo UL

in Fundamenta Informaticae (2008), 89(4), 393-417

Detailed reference viewed: 61 (0 UL)
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See detailBildung und subjektives Wohlbefinden im Zeitverlauf, 1984–2002. Eine Mehrebenenanalyse
Hadjar, Andreas UL; Haunberger, Sigrid; Schubert, Frank

in Berliner Journal für Soziologie (2008), 18(3), 370-400

Diese Analyse des subjektiven Wohlbefindens verfolgt zwei Ziele. Zum einen wird die Entwicklung des subjektiven Wohlbefindens über die Periode zwischen 1984 und 2002 untersucht. Dabei werden Alters ... [more ▼]

Diese Analyse des subjektiven Wohlbefindens verfolgt zwei Ziele. Zum einen wird die Entwicklung des subjektiven Wohlbefindens über die Periode zwischen 1984 und 2002 untersucht. Dabei werden Alters-, Perioden- und Kohorteneffekte simultan betrachtet. Als soziale Mechanismen hinter den Wandlungsprozessen, das heißt als Prädiktoren für das subjektive Wohlbefinden und die Variation im Zeitverlauf, werden Bildung und Bildungsexpansion thematisiert und in die Analysemodelle eingeführt. Um die Lebenszufriedenheit unabhängig von gesundheitlichen Aspekten zu untersuchen, wird die Gesundheitszufriedenheit kontrolliert. Methodisch folgt der Beitrag einem Mehrebenenansatz. Zur Datenanalyse werden Hierarchisch Lineare Modelle (HLM) herangezogen. Detailliert wird auf die benötigte Datenstruktur, die Anwendbarkeit und die Parameter-Schätzungen von HLM eingegangen. Die Datengrundlage bildet das Sozio-Ökonomische Panel (SOEP), wobei nur die Teil-Stichprobe der Westdeutschen in die Analyse einbezogen wird. In den Resultaten zeigen sich – neben einem starken Einfluss der Gesundheitszufriedenheit – u. a. robuste Bildungseffekte, ein substanzieller Alterseffekt und ein schwacher negativer Kohorteneffekt auf die Lebenszufriedenheit. [less ▲]

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See detailReducibility Proofs in the λ-Calculi with Intersection Types
Kamareddine, Fairouz; Rahli, Vincent UL; Wells, J. B.

Scientific Conference (2008)

Detailed reference viewed: 39 (2 UL)
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See detailInterference Mitigation and Synchronization for Satellite Communications
Grotz, Joel UL

Book published by KTH (2008)

Within this thesis, the satellite broadcast scenario of geostationary satellites is reviewed. The densely crowded geostationary arc in the common broadcast frequencies may create significant interference ... [more ▼]

Within this thesis, the satellite broadcast scenario of geostationary satellites is reviewed. The densely crowded geostationary arc in the common broadcast frequencies may create significant interference from adjacent satellites (ASI). The possible use of multiple-input receivers and of interference processing techniques is analyzed in this specific context. In addition the synchronization problem is studied under interference limited conditions for broadcast as well as broadband satellite systems.We address fixed satellite broadcast reception with the goal of decreasing the aperture of the receiving antenna. The front-end antenna size is commonly defined by the presence of interference from adjacent satellites. A small antenna aperture leads to interference from neighboring satellites utilizing the same frequency bands. We propose a multi-input reception system with subsequent joint detection which provides reliable communication in the presence of multiple interfering signals. An iterative least square technique is adopted combining spatial and temporal processing. This approach achieves robustness against pointing errors and against changing interference scenarios. Different temporal interference processing methods are evaluated, including Minimum Mean Square Error (MMSE) based iterative soft-decision interference cancellation as well as Iterative Least Square with Projection (ILSP) based approaches, which include spatial and temporal iterations. Furthermore the potential of an additional convolutional channel decoding step in the interference cancellation mechanism is verified.Also, we demonstrate how to accurately synchronize the signals as part of the detection procedure. The technique is evaluated in a realistic simulation study representing the conditions encountered in typical broadcast scenarios.In a second part of the thesis the problem of synchronization is reviewed in the context of interference limited scenarios for broadband satellite return channels. Spectral efficiency is of great concern in the return channel of satellite based broadband systems. In recent work the feasibility of increased efficiency by reducing channel spacing below the Symbol Rate was demonstrated using joint detection and decoding for a synchronized system. We extend this work by addressing the critical synchronization problem in the presence of adjacent channel interference (ACI) which limits performance as carrier spacing is reduced.A pilot sequence aided joint synchronization scheme for a multi-frequency time division multiple access (MF-TDMA) system is proposed. Based on a maximum likelihood (ML) criterion, the channel parameters, including frequency, time and phase are jointly estimated for the channel of interest and the adjacent channels. The impact of ACI on the synchronization and detection performance is investigated. It is shown that joint channel parameter estimation outperforms single carrier synchronization with reasonable additional computational complexity in the receiver. Based on the proposed synchronization scheme in conjunction with an appropriate joint detection mechanism the carrier spacing can be reduced significantly compared to current systems providing a substantial increase in spectral efficiency. [less ▲]

Detailed reference viewed: 119 (6 UL)
See detailFigur/Ornament: Romantische Poetik im Kontext von Akustik und Schallaufzeichnung
Dembeck, Till UL

in Spies, Bernhard; von Hoff, Dagmar (Eds.) Textprofile intermedial (2008)

Detailed reference viewed: 78 (1 UL)
See detailFür eine raumbezogene Hospitalgeschichte. Einführende Bemerkungen
Pauly, Michel UL

in 14. Institutions de l’assistance sociale en Lotharingie médiévale / Einrichtungen der sozialen Sicherung im mittelalterlichen Lotharingien (2008)

Detailed reference viewed: 53 (0 UL)