@inproceedings{BeckersSchmidtKuesteretal.2011, author = {Beckers, Kristian and Schmidt, Holger and K{\"u}ster, Jan-Christoph and Faßbender, Stephan}, title = {Pattern-Based Support for Context Establishment and Asset Identification of the ISO 27000 in the Field of Cloud Computing}, series = {2011 Sixth International Conference on Availability, Reliability and Security}, booktitle = {2011 Sixth International Conference on Availability, Reliability and Security}, publisher = {IEEE}, address = {Vienna}, isbn = {978-1-4577-0979-1}, doi = {10.1109/ARES.2011.55}, pages = {327 -- 333}, year = {2011}, abstract = {The ISO 27000 is a well-established series of information security standards. The scope for applying these standards can be an organisation as a whole, single business processes or even an IT application or IT infrastructure. The context establishment and the asset identification are among the first steps to be performed. The quality of the results produced when performing these steps has a crucial influence on the subsequent steps such as identifying loss, vulnerabilities, possible attacks and defining countermeasures. Thus, a context analysis to gather all necessary information in the initial steps is important, but is not offered in the standard. In this paper, we focus on the scope of cloud computing systems and present a way to support the context establishment and the asset identification described in ISO 27005. A cloud system analysis pattern and different kinds of stakeholder templates serve to understand and describe a given cloud development problem, i.e. the envisaged IT systems and the relevant parts of the operational environment. We illustrate our support using an online banking cloud scenario.}, 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} } @incollection{BuettnerRuempelHobohm2011, author = {B{\"u}ttner, Stephan and R{\"u}mpel, Stefanie and Hobohm, Hans-Christoph}, title = {Informationswissenschaftler im Forschungsdatenmanagement}, series = {Handbuch Forschungsdatenmanagement}, booktitle = {Handbuch Forschungsdatenmanagement}, editor = {M{\"u}ller, Lars and B{\"u}ttner, Stephan and Hobohm, Hans-Christoph}, publisher = {Bock u. Herchen}, address = {Bad Honnef}, isbn = {978-3-88347-283-6}, pages = {203 -- 218}, year = {2011}, abstract = {Seit den ersten nationalen, strategischen Papieren zu Datenmanagement-Fragen in der Wissenschaft in den USA (NSF, 2005), Großbritannien (Lyon, 2007; Swan \& Brown, 2008), der EU (Atkinson et al. 2008; OGF22-ET CG, 2008) und vor allem seit den Guidelines der OECD (2007) wird international intensiv {\"u}ber die Erfordernisse der Ausbildung von „Datenspezialisten" diskutiert. Grundlegende {\"U}berlegungen, die einen gewissen internationalen Konsens gefunden haben, wurden im Auftrag von JISC von Swan und Brown (2008, S. 1) entwickelt (vgl. Hank \& Davidson, 2009). Sie schlagen vier Rollen im Forschungsdatenmanagement vor. Neben dem Data Creator (datenproduzierender Forscher), dem Data Scientist (Wissenschaftler der bspw. bei der Datenanalyse unterst{\"u}tzt) und dem Data Manager (verantwortlich f{\"u}r alle technischen Aspekte: Lagerung, Zugriff, Aufbewahrung) wurde auch der Data Librarian benannt. Im Weiteren wird, auch unter Beachtung der T{\"a}tigkeiten die im Data Curation Lifecycle Model (s. Beitrag von R{\"u}mpel. Kap. 1.2) aufgef{\"u}hrt sind, neben dem Data Manager und dem Data Curator insbesondere auf den Data Librarian eingegangen.}, language = {de} } @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} } @inproceedings{CoteHeiselSchmidtetal.2011, author = {C{\^o}t{\´e}, Isabelle and Heisel, Maritta and Schmidt, Holger and Hatebur, Denis}, title = {UML4PF — A tool for problem-oriented requirements analysis}, series = {2011 IEEE 19th International Requirements Engineering Conference}, booktitle = {2011 IEEE 19th International Requirements Engineering Conference}, publisher = {IEEE}, address = {Trento}, isbn = {978-1-4577-0924-1}, doi = {10.1109/RE.2011.6051670}, pages = {349 -- 350}, year = {2011}, abstract = {We present UML4PF, a tool for requirements analysis based on problem frames. It consists of a UML profile and an Eclipse-Plugin to model and analyze problem diagrams, derive specifications, and develop architectures.}, language = {en} } @incollection{FranzTroncyVacura2011, author = {Franz, Thomas and Troncy, Rapha{\"e}l and Vacura, Miroslav}, title = {The Core Ontology for Multimedia}, series = {Multimedia semantics: Metadata, analysis and interaction}, booktitle = {Multimedia semantics: Metadata, analysis and interaction}, editor = {Troncy, Rapha{\"e}l and Huet, Benoit and Schenk, Simon}, publisher = {Wiley}, address = {Chichester}, isbn = {9781119970231}, doi = {10.1002/9781119970231.ch9}, pages = {145 -- 161}, year = {2011}, language = {de} } @article{FuchsBohnHofzumahausetal.2011, author = {Fuchs, H. and Bohn, Birger and Hofzumahaus, A. and Holland, F. and Lu, K. D. and Nehr, Sascha and Rohrer, F. and Wahner, A.}, title = {Detection of HO2 by laser-induced fluorescence: calibration and interferences from RO2 radicals}, series = {Atmospheric Measurement Techniques}, volume = {4}, journal = {Atmospheric Measurement Techniques}, number = {6}, publisher = {Copernicus}, issn = {1867-8548}, doi = {10.5194/amt-4-1209-2011}, pages = {1209 -- 1225}, year = {2011}, abstract = {Abstract. HO2 concentration measurements are widely accomplished by chemical conversion of HO2 to OH including reaction with NO and subsequent detection of OH by laser-induced fluorescence. RO2 radicals can be converted to OH via a similar radical reaction sequence including reaction with NO, so that they are potential interferences for HO2 measurements. Here, the conversion efficiency of various RO2 species to HO2 is investigated. Experiments were conducted with a radical source that produces OH and HO2 by water photolysis at 185 nm, which is frequently used for calibration of LIF instruments. The ratio of HO2 and the sum of OH and HO2 concentrations provided by the radical source was investigated and was found to be 0.50 ± 0.02. RO2 radicals are produced by the reaction of various organic compounds with OH in the radical source. Interferences via chemical conversion from RO2 radicals produced by the reaction of OH with methane and ethane (H-atom abstraction) are negligible consistent with measurements in the past. However, RO2 radicals from OH plus alkene- and aromatic-precursors including isoprene (mainly OH-addition) are detected with a relative sensitivity larger than 80 \% with respect to that for HO2 for the configuration of the instrument with which it was operated during field campaigns. Also RO2 from OH plus methyl vinyl ketone and methacrolein exhibit a relative detection sensitivity of 60 \%. Thus, previous measurements of HO2 radical concentrations with this instrument were biased in the presence of high RO2 radical concentrations from isoprene, alkenes or aromatics, but were not affected by interferences in remote clean environment with no significant emissions of biogenic VOCs, when the OH reactivity was dominated by small alkanes. By reducing the NO concentration and/or the transport time between NO addition and OH detection, interference from these RO2 species are suppressed to values below 20 \% relative to the HO2 detection sensitivity. The HO2 conversion efficiency is also smaller by a factor of four, but this is still sufficient for atmospheric HO2 concentration measurements for a wide range of conditions.}, language = {en} } @misc{FunkeMueller2011, author = {Funke, Kira and M{\"u}ller, Regine}, title = {Teilhabe erm{\"o}glichen: F{\"o}rderprogramm gestartet}, series = {Jugendhilfe-Report: Informationen aus dem Landesjugendamt Rheinland}, volume = {4/11}, journal = {Jugendhilfe-Report: Informationen aus dem Landesjugendamt Rheinland}, editor = {Elzer, Reinhard}, organization = {Landschaftsverband Rheinland [LVR], LVR-Landesjugendamt Rheinland}, pages = {32 -- 35}, year = {2011}, subject = {Teilhabe}, language = {de} } @inproceedings{GroteKastsianMoennigmann2011, author = {Grote, Wolfgang and Kastsian, Darya and M{\"o}nnigmann, Martin}, title = {Optimal power system unit commitment with guaranteed local stability}, series = {Proceedings of the 2011 American Control Conference}, booktitle = {Proceedings of the 2011 American Control Conference}, publisher = {IEEE}, issn = {2378-5861}, doi = {10.1109/ACC.2011.5991058}, pages = {4526 -- 4531}, year = {2011}, abstract = {This article deals with the cost optimal commitment of power systems. System stability is often only considered after solving the commitment problem. We show by example that a cost optimization may result in a mode of operation that, while economically optimal, is unstable or has otherwise unacceptable dynamics. As a remedy, we propose to use the so-called normal vector method, which has been developed for the optimization of nonlinear dynamical systems with stability boundaries and uncertain parameters. We apply the method to a small sample power grid, where the optimization goal is to minimize the energy production costs for a given power consumption.}, language = {en} } @incollection{HallMusall2011, author = {Hall, Monika and Musall, Eike}, title = {Kraftwerk B}, series = {Nullenergiegeb{\"a}ude}, booktitle = {Nullenergiegeb{\"a}ude}, editor = {Voss, Karsten and Musall, Eike}, publisher = {Detail, Institut f{\"u}r internationale Architektur-Dokumentation}, address = {M{\"u}nchen}, isbn = {978-3-920034-50-8}, pages = {72 -- 77}, year = {2011}, language = {de} }