@article{CurcicStollWeigandetal.2011, author = {Curcic, Michael and Stoll, Hermann and Weigand, Markus and Sackmann, Vitalij and Juellig, Patrick and Kammerer, Matthias and Noske, Matthias and Sproll, Markus and Van Waeyenberge, Bartel and Vansteenkiste, Arne and Woltersdorf, Georg and Tyliszczak, Tolek and Sch{\"u}tz, Gisela}, title = {Magnetic vortex core reversal by rotating magnetic fields generated on micrometer length scales}, series = {physica status solidi (b)}, volume = {248}, journal = {physica status solidi (b)}, number = {10}, publisher = {Wiley}, issn = {0370-1972}, doi = {10.1002/pssb.201147208}, pages = {2317 -- 2322}, year = {2011}, abstract = {AbstractUnidirectional switching of the magnetic vortex core can be achieved in micron-sized ferromagnetic platelets by excitation of the gyrotropic mode of the vortex structure with in-plane rotating magnetic fields. Circulating fields with a switchable sense of rotation (clockwise, CW or counter clockwise, CCW) have been generated on a micrometer length scale at frequencies up to 1 GHz by two orthogonal electric RF currents with 90° phase shift flowing through crossed but not isolated striplines. Decoupling of these currents is realized by balanced symmetric RF sources. The amplitudes of the rotating magnetic fields and their spatial distributions are calculated and the stripline geometry is discussed. By taking advantage of this technique, unidirectional vortex core reversal by excitation with CW or CCW rotating magnetic fields has been observed by time resolved scanning transmission X-ray microscopy. An area with reversed magnetization, the "dip," was observed near the vortex core before vortex core reversal.}, language = {en} } @article{KammererWeigandCurcicetal.2011, author = {Kammerer, Matthias and Weigand, Markus and Curcic, Michael and Noske, Matthias and Sproll, Markus and Vansteenkiste, Arne and Van Waeyenberge, Bartel and Stoll, Hermann and Woltersdorf, Georg and Back, Christian H. and Schuetz, Gisela}, title = {Magnetic vortex core reversal by excitation of spin waves}, series = {Nature Communications}, volume = {2}, journal = {Nature Communications}, number = {1}, publisher = {Springer Nature}, issn = {2041-1723}, doi = {10.1038/ncomms1277}, year = {2011}, language = {en} } @inproceedings{BreuerEchternachtLinnemannetal.2011, author = {Breuer, Christopher and Echternacht, David and Linnemann, Christian and Moser, Albert}, title = {Technical and economic comparison of national and joint cross-border curative congestion management application}, series = {2011 8th International Conference on the European Energy Market (EEM), 25.05.2011 - 27.05.2011, Zagreb, Croatia}, booktitle = {2011 8th International Conference on the European Energy Market (EEM), 25.05.2011 - 27.05.2011, Zagreb, Croatia}, publisher = {IEEE}, isbn = {978-1-61284-285-1}, doi = {10.1109/EEM.2011.5952974}, pages = {33 -- 38}, year = {2011}, language = {en} } @inproceedings{LinnemannEchternachtBreueretal.2011, author = {Linnemann, Christian and Echternacht, David and Breuer, Christopher and Moser, Albert}, title = {Modeling optimal redispatch for the European Transmission grid}, series = {2011 IEEE Trondheim PowerTech,19.06.2011 - 23.06.2011, Trondheim}, booktitle = {2011 IEEE Trondheim PowerTech,19.06.2011 - 23.06.2011, Trondheim}, publisher = {IEEE}, isbn = {978-1-4244-8418-8}, doi = {10.1109/PTC.2011.6019442}, pages = {1 -- 8}, year = {2011}, language = {en} } @article{JohanningBraunEiteneueretal.2011, author = {Johanning, M. and Braun, Alexander and Eiteneuer, D. and Paape, C. and Balzer, Christoph and Neuhauser, W. and Wunderlich, C.}, title = {Resonance-enhanced isotope-selective photoionization of YbI for ion trap loading}, series = {Applied Physics B}, volume = {103}, journal = {Applied Physics B}, number = {2}, publisher = {Springer Nature}, issn = {1432-0649}, doi = {10.1007/s00340-011-4502-7}, pages = {327 -- 338}, year = {2011}, language = {en} } @article{LyalinaLangmannKrisilov2011, author = {Lyalina, Yuliya and Langmann, Reinhard and Krisilov, V.}, title = {The Interaction Model in iLearning Environments and its Use in the Smart Lab Concept}, series = {International Journal of Online Engineering}, volume = {7}, journal = {International Journal of Online Engineering}, number = {4}, publisher = {iJOE}, doi = {10.3991/ijoe.v7i4.1793}, year = {2011}, language = {en} } @article{BaeklerHehlNester2011, author = {Baekler, Peter and Hehl, Friedrich W. and Nester, James M.}, title = {Poincar{\´e} gauge theory of gravity: Friedman cosmology with even and odd parity modes: Analytic part}, series = {Physical Review D}, volume = {83}, journal = {Physical Review D}, number = {2}, publisher = {APS}, doi = {10.1103/physrevd.83.024001}, year = {2011}, language = {en} } @article{BaeklerHehl2011, author = {Baekler, Peter and Hehl, Friedrich W.}, title = {Beyond Einstein-Cartan gravity: quadratic torsion and curvature invariants with even and odd parity including all boundary terms}, series = {Classical and Quantum Gravity}, volume = {28}, journal = {Classical and Quantum Gravity}, number = {21}, publisher = {IOP}, doi = {10.1088/0264-9381/28/21/215017}, year = {2011}, language = {en} } @misc{OPUS4-454, title = {283 - Fachbereichsordnung f{\"u}r den Fachbereich Elektrotechnik der Fachhochschule D{\"u}sseldorf vom 01.12.2011}, address = {D{\"u}sseldorf}, organization = {Fachhochschule D{\"u}sseldorf}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-7061}, pages = {7}, year = {2011}, abstract = {Aufgrund \S 26 Abs. 3 des Gesetzes {\"u}ber die Hochschulen des Landes Nordrhein-Westfalen (Hochschulgesetz - HG) in der Fassung des Hochschulfreiheitsgesetzes vom 01. Januar 2007 (Hochschulfreiheitsgesetz - HFG) und der Grundordnung der Fachhochschule D{\"u}sseldorf (GO) vom 12.07.2010 ge{\"a}ndert durch Satzung vom 26.10.2011 hat der Fachbereich Elektrotechnik die folgende Fachbereichsordnung erlassen:}, language = {de} } @misc{Schmitz2011, author = {Schmitz, Thomas}, title = {Entwicklung einer mobilen Software zum Steuern und {\"U}berwachen von Wohnungst{\"u}ren auf Basis von Android im Umfeld von Ambient Assisted Living}, address = {D{\"u}sseldorf}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:due62-opus-6908}, pages = {42}, year = {2011}, abstract = {In diesem Projekt wird eine m{\"o}gliche Kombination von Android und OSGi als Grundlage einer mobilen Plattform f{\"u}r AAL Anwendungen betrachet. Im ersten Teil werden die Grundlagen der Android Programmierung erl{\"a}utert. Darauf folgt ein kurzer {\"U}berblick {\"u}ber die verwendeten OSGi Dienste. Zum Schluß wird als m{\"o}gliche Anwendung eine Implementierung zum {\"U}berwachen und Steuern von Wohnungst{\"u}ren gezeigt, die im Rahmen des AAL Projekts zum Einsatz kommen k{\"o}nnte.}, language = {de} }