@article{8655,
author = {Greilich, A. and Oulton, R. and Zhukov, E. A. and Yugova, I. A. and Yakovlev, D. R. and Bayer, M. and Shabaev, A. and Efros, Al. L. and Merkulov, I. A. and Stavarache, V. and Reuter, Dirk and Wieck, A.},
issn = {0031-9007},
journal = {Physical Review Letters},
title = {{Optical Control of Spin Coherence in Singly Charged(In,Ga)As/GaAsQuantum Dots}},
doi = {10.1103/physrevlett.96.227401},
year = {2006},
}
@article{8662,
author = {Fricke, C. and Regul, J. and Hohls, F. and Reuter, Dirk and Wieck, A.D. and Haug, R.J.},
issn = {1386-9477},
journal = {Physica E: Low-dimensional Systems and Nanostructures},
pages = {519--521},
title = {{Transport spectroscopy of a quantum point contact created by an atomic force microscope}},
doi = {10.1016/j.physe.2006.03.137},
year = {2006},
}
@article{9533,
abstract = {The design of piezoelectric transducers is usually based on single-objective optimization only. In most practical applications of piezoelectric transducers, however, there exist multiple design objectives that often are contradictory to each other by their very nature. It is impossible to find a solution at which each objective function gets its optimal value simultaneously. Our design approach is to first find a set of Pareto-optimal solutions, which can be considered to be best compromises among multiple design objectives. Among these Pareto-optimal solutions, the designer can then select the one solution which he considers to be the best one. In this paper we investigate the optimal design of a Langevin transducer. The design problem is formulated mathematically as a constrained multiobjective optimization problem. The maximum vibration amplitude and the minimum electrical input power are considered as optimization objectives. Design variables involve continuous variables (dimensions of the transducer) and discrete variables (the number of piezoelectric rings and material types). In order to formulate the optimization problem, the behavior of piezoelectric transducers is modeled using the transfer matrix method based on analytical models. Multiobjective evolutionary algorithms are applied in the optimization process and a set of Pareto-optimal designs is calculated. The optimized results are analyzed and the preferred design is determined. },
author = {Fu, Bo and Hemsel, Tobias and Wallaschek, Jörg},
issn = {0041-624X},
journal = {Ultrasonics},
keyword = {Piezoelectric transducer},
pages = {e747 -- e752},
title = {{Piezoelectric transducer design via multiobjective optimization}},
doi = {10.1016/j.ultras.2006.05.087},
volume = {44, Supplement},
year = {2006},
}
@inproceedings{9538,
author = {Hemsel, Tobias and Mracek, Maik},
booktitle = {Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators},
number = {Band 180},
pages = {313--322},
title = {{Control of Bundled Miniature Ultrasonic Linear Motors}},
year = {2006},
}
@inproceedings{9540,
author = {Hemsel, Tobias and Priya, S},
booktitle = {Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators},
number = {Band 180},
pages = {223--228},
title = {{Model Based Analysis of Piezoelectric Transformers}},
year = {2006},
}
@inproceedings{9545,
author = {Mracek, B and Hemsel, Tobias and Mracek, Maik},
booktitle = {Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators},
number = {Band 180},
pages = {177--182},
title = {{Powder Transport by Ultrasonic Waves}},
year = {2006},
}
@inproceedings{9552,
author = {Twiefel, Jens and Hemsel, Tobias and Kauczor, Christopher},
booktitle = {Proceedings of 2nd International Workshop on Piezoelectric Materials and Applications in Actuators},
number = {Band 180},
pages = {207--212},
title = {{Energy harvesting with piezoelectric Elements}},
year = {2006},
}
@inbook{17584,
author = {Peckhaus, Volker and Löwe, Benedikt and Räsch, Thoralf},
booktitle = {Foundations of Formal Sciences IV. The History of the Concept of Formal Sciences},
editor = {Peckhaus, Volker and Löwe, Benedikt and Räsch, Thoralf},
pages = {vii–xii},
publisher = {College Publications},
title = {{Preface}},
volume = {3},
year = {2006},
}
@inproceedings{17286,
author = {Wrede, Britta and Rohlfing, Katharina and Nagai, Yukie},
booktitle = {5th Biennial International Conference on Infant Studies (ICIS 2006)},
title = {{How to make sense of environmental interaction and dynamics. Symposium: Models of infant development: Are we really serious about environmental interaction and dynamics?}},
year = {2006},
}
@misc{18544,
author = {Peckhaus, Volker},
booktitle = {Zentralblatt für Mathematik und ihre Grenzgebiete [Zbl. 1087.01017]},
title = {{Bolzano, Bernard, Vermischte Mathematische Schriften 1832–1848, Teil 1, hg. v. Jan Berg (Bernard-Bolzano-Gesamtausgabe, R. II.A.11.1), Friedrich Frommann Verlag-Günther Holzboog: Stuttgart-Bad Cannstatt 2001}},
year = {2006},
}
@misc{18556,
author = {Peckhaus, Volker},
booktitle = {Zentralblatt für Mathematik und ihre Grenzgebiete [Zbl 1096.03001]},
title = {{Floyd, Juliet/Shieh, Sanford (Hgg.), Future Pasts. The Analytic Tradition in Twentieth-Century Philosophy. Dedicated to Burton Dreben, Oxford University Press: Oxford 2001}},
year = {2006},
}
@article{18599,
abstract = {This paper investigates the influence of the basis set on the GW self-energy correction in the full-potential linearized augmented-plane-wave (LAPW) approach and similar linearized all-electron methods. A systematic improvement is achieved by including local orbitals that are defined as second and higher energy derivatives of solutions to the radial scalar-relativistic Dirac equation and thus constitute a natural extension of the LAPW basis set. Within this approach linearization errors can be eliminated, and the basis set becomes complete. While the exchange contribution to the self-energy is little affected by the increased basis-set flexibility, the correlation contribution benefits from the better description of the unoccupied states, as do the quasiparticle energies. The resulting band gaps remain relatively unaffected, however; for Si we find an increase of 0.03 eV.},
author = {Friedrich, Christoph and Schindlmayr, Arno and Blügel, Stefan and Kotani, Takao},
issn = {1550-235X},
journal = {Physical Review B},
number = {4},
title = {{Elimination of the linearization error in GW calculations based on the linearized augmented-plane-wave method}},
doi = {10.1103/physrevb.74.045104},
volume = {74},
year = {2006},
}
@inproceedings{18676,
abstract = {We present random sampling algorithms that with probability at least 1 - δ compute a (1 ± ǫ)- approximation of the clustering coefficient, the transitiv ity coefficient, and of the number of bipartite cliques in a graph given as a stream of edges. Our methods can be extended to approximately count the number of occurences of fixed constant-size subgraphs. Our a lgorithms only require one pass over the input stream and their storage space depends only on structural parameters of the graphs, the approxi- mation guarantee, and the confidence probability. For examp le, the algorithms to compute the clustering and transitivity coefficient depend on that coefficient but n ot on the size of the graph. Since many large social networks have small clustering and transitivity coe fficient, our algorithms use space independent of the size of the input for these graphs. We implemented our algorithms and evaluated their performance on networks from different appli- cation domains. The sizes of the considered input graphs varied from about 8, 000 nodes and 40, 000 edges to about 135 million nodes and more than 1 billion edges. For both algorithms we run experiments with a sample set size varying from 100, 000 to 1, 000, 000 to evaluate running time and approximation guarantee. Our algorithms appear to be time efficient for the se sample sizes.},
author = {Sohler, Christian and Frahling, Gereon and Marchetti-Spaccamela, Alberto and Leonardi, Stefano and Buriol, Luciana},
booktitle = {Proceedings of the European Conference on Complex Systems (ECCS'06)},
title = {{Computing Clustering Coefficients in Data Streams}},
year = {2006},
}
@inproceedings{18746,
abstract = {In this paper, we present a randomized constant factor approximation
algorithm for the metric minimum facility location problem with uniform
costs and demands in a distributed setting, in which every point can
open a facility. In particular, our distributed algorithm uses three
communication rounds with message sizes bounded to O(log n) bits where
n is the number of points. We also extend our algorithm to constant
powers of metric spaces, where we also obtain a randomized constant
factor approximation algorithm.},
author = {Sohler, Christian and Gehweiler, Joachim and Lammersen, Christiane},
booktitle = {Proceeedings of 18th ACM Symposium on Parallelism in Algorithms and Architectures (SPAA)},
title = {{A Distributed O(1)-Approximation Algorithm for the Uniform Facility Location Problem}},
year = {2006},
}
@misc{18816,
author = {Peckhaus, Volker},
booktitle = {Mathematical Reviews [MR 2006b:03008; MathSciNet MR2139368]},
title = {{Martin, Donald A., “Gödel’s Conceptual Realism”, Bulletin of Symbolic Logic 11 (2005), 207–224}},
year = {2006},
}
@inbook{19345,
author = {Eke, Norbert Otto},
booktitle = {Die deutsche Tragödie. Neue Lektüren einer Gattung im europäischen Kontext},
editor = {Dörr, Volker C. and Schneider, Helmut J.},
pages = {235--254},
publisher = {Aisthesis},
title = {{Furcht und Schrecken im Theater der Erinnerung oder „Man sollte Komödien schreiben / Leben in diesem trüben Menschenbrei“. Heiner Müllers Tragödie}},
year = {2006},
}
@article{19340,
author = {Eke, Norbert Otto and Allkemper, Alo},
journal = {Zeitschrift für deutsche Philologie 125, Sonderheft: Das Gedächtnis der Literatur. Konstitutionsformen des Vergangenen in der Literatur des 20. Jahrhunderts},
pages = {2--4},
publisher = {Erich Schmidt, Berlin},
title = {{Das Gedächtnis der Literatur. Zur Einführung}},
year = {2006},
}
@misc{19484,
author = {Eke, Norbert Otto},
booktitle = {Literaturwissenschaftliches Lexikon. Grundbegriffe der Germanistik},
editor = {Brunner, Horst and Moritz, Rainer},
pages = {74--79},
publisher = {Erich Schmidt},
title = {{DDR-Literatur}},
year = {2006},
}
@article{19698,
author = {Büker, Petra},
journal = {Beiträge Jugendliteratur und Medien },
number = {H. 2},
pages = {104--111},
title = {{Hier kommt Lola! Die unkonventionelle bikulturelle Familie in Isabel Abedis neuer Kinderbuchreihe}},
volume = {58, H. 2},
year = {2006},
}
@misc{19718,
author = {Degener, Bastian},
title = {{Die Analyse von Estimation-of-Distribution-Algorithmen auf ausgewählten Funktionen}},
year = {2006},
}