@phdthesis{KurulganDemirci2012,
  author    = {Kurulgan Demirci, Eylem},
  title     = {The effect of rhAPC on contractile tension : an in-vitro sepsis model of cardiomyocytes and endothelial cells},
  year      = {2012},
  language  = {en}
}
@phdthesis{Bragard2012,
  author    = {Bragard, Michael},
  title     = {The integrated emitter turn-off thyristor : an innovative MOS-gated high-power device. - (Aachener Beitr{\"a}ge des ISEA ; 62)},
  publisher = {Shaker},
  address   = {Aachen},
  isbn      = {978-3-8440-1152-4},
  pages     = {III, 164 S. : Ill., graph. Darst.},
  year      = {2012},
  abstract  = {This thesis introduces the Integrated Emitter Turn-Off (IETO) Thyristor as a new high-power device. Known state-of-the-art research activities like the Dual GCT, the ETO thyristor and the ICT were presented and critically reviewed. A comparison with commercialized solutions identifies the pros and cons of each type of device family. Based on this analysis, the IETO structure is proposed, covering most benefits of each device class. In particular the combination of a MOS-assisted turn-off with a thyristor-based device allows a voltage-controlled MOS switching and the low on-state voltage of the thyristors. The following synthesis of an IETO device stands on a three-dimensional field of optimization spanned by electric, mechanical and thermal aspects. From an electric point of view, the lowest possible parasitic inductance and resistance within the commutation path are optimization criteria. The mechanical construction has to withstand the required contact pressure of multiple kilo Newtons. Finally, thermal borders limit the maximum average current of the device. FEM simulations covering these three aspects are performed for several design proposals. An IETO prototype is constructed and measurements on various test benches attest thermal, mechanical and electric performance. A local decoupling of the external driver stage and the presspack housing is presented by a cable connection. This separation enables a thermal and mechanical independence, which is advantageous in terms of vibrations and thermal cycles including increased reliability. The electric pulse performance of the prototype device is a factor of 3.1 above today''s solutions. In single-pulse measurements, a current up to 1600 A was successfully turned off at 115°C with an active silicon area of 823 mm². One reason for this increased turn-off capability is the extremely low-inductive construction. Additional functionality of the IETO thyristor like over-current self-protection and defined short-circuit failure state are successfully verified.},
  language  = {en}
}
@inproceedings{KnackstedtEggertFleischer2012,
  author    = {Knackstedt, Ralf and Eggert, Mathias and Fleischer, Stefan},
  title     = {The Legal Perspective on Business to Government Reporting - A Conceptual Modeling Approach and Its Application in the Financial Sector},
  series = {45th Hawaii International Conference on System Sciences 2012},
  booktitle = {45th Hawaii International Conference on System Sciences 2012},
  isbn      = {978-0-7695-4525-7},
  doi       = {10.1109/HICSS.2012.576},
  pages     = {2309 -- 2318},
  year      = {2012},
  language  = {en}
}
@inproceedings{Wollert2012,
  author    = {Wollert, J{\"o}rg},
  title     = {The performance of UWB-communication in an industrial environment},
  series = {IEEE 1st International Symposium on Wireless Systems : (IDAACS-SWS) : Offenburg, 20-21 Sept. 2012},
  booktitle = {IEEE 1st International Symposium on Wireless Systems : (IDAACS-SWS) : Offenburg, 20-21 Sept. 2012},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  organization    = {International Symposium on Wireless Systems <1, 2012, Offenburg>},
  isbn      = {978-1-4673-4678-8},
  doi       = {10.1109/IDAACS-SWS.2012.6377639},
  pages     = {85 -- 90},
  year      = {2012},
  language  = {en}
}
@article{StadlerGarveyBocahutetal.2012,
  author    = {Stadler, Andreas M. and Garvey, G. J. and Bocahut, A. and Sacquin-Mora, S. and Digel, Ilya and Schneider, G. J. and Natali, F. and Artmann, Gerhard and Zaccai, G.},
  title     = {Thermal fluctuations of haemoglobin from different species : adaptation to temperature via conformational dynamics},
  series = {Journal of the Royal Society Interface},
  volume    = {9},
  journal   = {Journal of the Royal Society Interface},
  number    = {76},
  publisher = {The Royal Society},
  address   = {London},
  issn      = {1742-5689},
  doi       = {10.1098/rsif.2012.0364},
  pages     = {2845 -- 2855},
  year      = {2012},
  abstract  = {Thermodynamic stability, configurational motions and internal forces of haemoglobin (Hb) of three endotherms (platypus, Ornithorhynchus anatinus; domestic chicken, Gallus gallus domesticus and human, Homo sapiens) and an ectotherm (salt water crocodile, Crocodylus porosus) were investigated using circular dichroism, incoherent elastic neutron scattering and coarse-grained Brownian dynamics simulations. The experimental results from Hb solutions revealed a direct correlation between protein resilience, melting temperature and average body temperature of the different species on the 0.1 ns time scale. Molecular forces appeared to be adapted to permit conformational fluctuations with a root mean square displacement close to 1.2 {\AA} at the corresponding average body temperature of the endotherms. Strong forces within crocodile Hb maintain the amplitudes of motion within a narrow limit over the entire temperature range in which the animal lives. In fully hydrated powder samples of human and chicken, Hb mean square displacements and effective force constants on the 1 ns time scale showed no differences over the whole temperature range from 10 to 300 K, in contrast to the solution case. A complementary result of the study, therefore, is that one hydration layer is not sufficient to activate all conformational fluctuations of Hb in the pico- to nanosecond time scale which might be relevant for biological function. Coarse-grained Brownian dynamics simulations permitted to explore residue-specific effects. They indicated that temperature sensing of human and chicken Hb occurs mainly at residues lining internal cavities in the β-subunits.},
  language  = {en}
}
@article{ScheikSchleserReisgen2012,
  author    = {Scheik, Sven and Schleser, Markus and Reisgen, Uwe},
  title     = {Thermisches Direktf{\"u}gen von Metall und Kusntstoff: eine Alternative zur Klebtechnik},
  series = {Adh{\"a}sion : Kleben \& Dichten},
  volume    = {56},
  journal   = {Adh{\"a}sion : Kleben \& Dichten},
  number    = {11},
  publisher = {Springer Vieweg},
  address   = {Wiesbaden},
  issn      = {0001-8198 (E-Journal); 0001-8198 (Print)},
  doi       = {10.1007/s35145-012-0005-x},
  pages     = {36 -- 40},
  year      = {2012},
  abstract  = {Im Rahmen des Exzellenzclusters „Integrative Produktionstechnik f{\"u}r Hochlohnl{\"a}nder" der RWTHAachen University werden derzeit alternative Verfahren zur Herstellung von Metall/Kunststoff- Verbindungen untersucht. Eines davon ist das thermische Direktf{\"u}gen, das eine stoffschl{\"u}ssige Verbindung zwischen Kunststoff und Metall erm{\"o}glicht und ohne die Verwendung von Klebstoffen, Haftvermittlern oder mechanischen Verbindungshilfen auskommt.},
  language  = {de}
}
@article{OrzadaMaderwaldPoseretal.2012,
  author    = {Orzada, S. and Maderwald, S. and Poser, B. A. and Johst, S. and Kannengiesser, S. and Ladd, M. E. and Bitz, Andreas},
  title     = {Time-interleaved acquisition of modes: an analysis of SAR and image contrast implications},
  series = {Magnetic Resonance in Medicine},
  volume    = {67},
  journal   = {Magnetic Resonance in Medicine},
  number    = {4},
  publisher = {Wiley-Liss},
  address   = {New York},
  issn      = {1522-2594},
  doi       = {10.1002/mrm.23081},
  pages     = {1033 -- 1041},
  year      = {2012},
  abstract  = {s the magnetic field strength and therefore the operational frequency in MRI are increased, the radiofrequency wavelength approaches the size of the human head/body, resulting in wave effects which cause signal decreases and dropouts. Especially, whole-body imaging at 7 T and higher is therefore challenging. Recently, an acquisition scheme called time-interleaved acquisition of modes has been proposed to tackle the inhomogeneity problems in high-field MRI. The basic premise is to excite two (or more) different Burn:x-wiley:07403194:media:MRM23081:tex2gif-stack-1 modes using static radiofrequency shimming in an interleaved acquisition, where the complementary radiofrequency patterns of the two modes can be exploited to improve overall signal homogeneity. In this work, the impact of time-interleaved acquisition of mode on image contrast as well as on time-averaged specific absorption rate is addressed in detail. Time-interleaved acquisition of mode is superior in Burn:x-wiley:07403194:media:MRM23081:tex2gif-stack-2 homogeneity compared with conventional radiofrequency shimming while being highly specific absorption rate efficient. Time-interleaved acquisition of modes can enable almost homogeneous high-field imaging throughout the entire field of view in PD, T2, and T2*-weighted imaging and, if a specified homogeneity criterion is met, in T1-weighted imaging as well.},
  language  = {en}
}
@article{FischerKowalskiPudasaini2012,
  author    = {Fischer, Jan-Thomas and Kowalski, Julia and Pudasaini, Shiva P.},
  title     = {Topographic curvature effects in applied avalanche modelling},
  series = {Cold Regions Science and Technology},
  volume    = {74-75},
  journal   = {Cold Regions Science and Technology},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-7441},
  doi       = {10.1016/j.coldregions.2012.01.005},
  pages     = {21 -- 30},
  year      = {2012},
  abstract  = {This paper describes the implementation of topographic curvature effects within the RApid Mass MovementS (RAMMS) snow avalanche simulation toolbox. RAMMS is based on a model similar to shallow water equations with a Coulomb friction relation and the velocity dependent Voellmy drag. It is used for snow avalanche risk assessment in Switzerland. The snow avalanche simulation relies on back calculation of observed avalanches. The calibration of the friction parameters depends on characteristics of the avalanche track. The topographic curvature terms are not yet included in the above mentioned classical model. Here, we fundamentally improve this model by mathematically and physically including the topographic curvature effects. By decomposing the velocity dependent friction into a topography dependent term that accounts for a curvature enhancement in the Coulomb friction, and a topography independent contribution similar to the classical Voellmy drag, we construct a general curvature dependent frictional resistance, and thus propose new extended model equations. With three site-specific examples, we compare the apparent frictional resistance of the new approach, which includes topographic curvature effects, to the classical one. Our simulation results demonstrate substantial effects of the curvature on the flow dynamics e.g., the dynamic pressure distribution along the slope. The comparison of resistance coefficients between the two models demonstrates that the physically based extension presents an improvement to the classical approach. Furthermore a practical example highlights its influence on the pressure outline in the run out zone of the avalanche. Snow avalanche dynamics modeling natural terrain curvature centrifugal force friction coefficients.},
  language  = {en}
}
@inproceedings{BohrnStuetzFleischeretal.2012,
  author    = {Bohrn, U. and St{\"u}tz, E. and Fleischer, M. and Sch{\"o}ning, Michael Josef and Wagner, P.},
  title     = {Towards a paradigm change - mammalian cells as sensitive biosensor layers for the detection of unexpected toxic substances in air},
  series = {Nanoscale Science and Technology (NS\&T´12) : Proceedings Book Humboldt Kolleg ; Tunisia, 17-19 March, 2012},
  booktitle = {Nanoscale Science and Technology (NS\&T´12) : Proceedings Book Humboldt Kolleg ; Tunisia, 17-19 March, 2012},
  editor    = {Abdelghani, Adnane and Sch{\"o}ning, Michael Josef},
  pages     = {44 -- 44},
  year      = {2012},
  language  = {en}
}
@inproceedings{FerreinKallweitLautermann2012,
  author    = {Ferrein, Alexander and Kallweit, Stephan and Lautermann, Mark},
  title     = {Towards an autonomous pilot system for a tunnel boring machine},
  series = {5th Robotics and Mechatronics Conference of South Africa (ROBMECH) : 26 - 27 November 2012 ; CSIR International Conference Centre Gauteng South Africa},
  booktitle = {5th Robotics and Mechatronics Conference of South Africa (ROBMECH) : 26 - 27 November 2012 ; CSIR International Conference Centre Gauteng South Africa},
  publisher = {IEEE},
  address   = {Piscataway, NJ},
  isbn      = {978-1-4673-5183-6},
  year      = {2012},
  language  = {en}
}