@article{ReisgenSchleserMokrovetal.2010,
  author    = {Reisgen, Uwe and Schleser, Markus and Mokrov, Oleg and Ahmed, Essam},
  title     = {Uni- and bi-axial deformation behavior of laser welded advanced high strength steel sheets},
  series = {Journal of materials processing technology},
  volume    = {210},
  journal   = {Journal of materials processing technology},
  number    = {15},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0924-0136},
  doi       = {http10.1016/j.jmatprotec.2010.08.003},
  pages     = {2188 -- 2196},
  year      = {2010},
  abstract  = {Bead-on-plate butt joints of 2.5 mm hot rolled DP600/DP600 and 1.2 mm cold rolled TRIP700/TRIP700 steel sheets were performed using 6 kW CO2 laser beam welding. The welding speed ranged from 1.5 to 3.0 and from 2.1 to 3.9 m/min in DP/DP and TRIP/TRIP steel weldments respectively. A top surface helium gas was used as a shielding gas at a flow rate of 20 l/min. Metallographic examinations and transverse tensile testing (DIN EN 895: 1995) were carried out to characterize the weldments. The formability of base metals and weldments were investigated by standard Erichsen test (DIN EN ISO 20482). It was found that the uniaxial plastic behavior of both DP600 and TRIP700 base metals was in agreement with Swift and modified Mecking-Kocks models respectively. In a perpendicular tensile test to the weld line, all specimens were fractured at the base metal however the strengths were somewhat higher than those of base metal. There was a significant reduction in formability caused by welding of both DP/DP and TRIP/TRIP steel weldments and the formability has been improved with the increase of the welding speed.},
  language  = {en}
}
@incollection{KrollLudwigs2008,
  author    = {Kroll-Ludwigs, Kathrin},
  title     = {Unification of Conflict of Laws in Europe. Matrimonial Property Regimes},
  series = {European Challenges in Contemporary Family Law},
  booktitle = {European Challenges in Contemporary Family Law},
  editor    = {Boele-Woelki, Katharina},
  publisher = {Intersentia},
  address   = {Antwerpen},
  isbn      = {978-90-5095-692-5},
  pages     = {379 -- 393},
  year      = {2008},
  language  = {en}
}
@article{ReisselLustfeldHirschfeldetal.2009,
  author    = {Reißel, Martin and Lustfeld, H. and Hirschfeld, J. and Steffen, B.},
  title     = {Uniqueness of magnetotomography for fuel cells and fuel cell stacks / Lustfeld, H. ; Hirschfeld, J. ; Reißel, M ; Steffen, B.},
  series = {Journal of Physics A: Mathematical and Theoretical. 42 (2009), H. 495205},
  journal   = {Journal of Physics A: Mathematical and Theoretical. 42 (2009), H. 495205},
  isbn      = {0022-3689},
  pages     = {9 S.},
  year      = {2009},
  language  = {en}
}
@article{Stulpe2009,
  author    = {Stulpe, Werner},
  title     = {Unitary Operator},
  series = {Compendium of Quantum Physics : concepts, experiments, history and philosophy / Daniel Greenberger ... ed.},
  journal   = {Compendium of Quantum Physics : concepts, experiments, history and philosophy / Daniel Greenberger ... ed.},
  publisher = {Springer},
  address   = {Berlin},
  isbn      = {978-3-540-70622-9},
  pages     = {807 -- 809},
  year      = {2009},
  language  = {en}
}
@article{BialonskiWendlerLehnertz2011,
  author    = {Bialonski, Stephan and Wendler, Martin and Lehnertz, Klaus},
  title     = {Unraveling spurious properties of interaction networks with tailored random networks},
  series = {Plos one},
  volume    = {6},
  journal   = {Plos one},
  number    = {8},
  publisher = {Plos},
  address   = {San Francisco},
  doi       = {10.1371/journal.pone.0022826},
  pages     = {e22826},
  year      = {2011},
  abstract  = {We investigate interaction networks that we derive from multivariate time series with methods frequently employed in diverse scientific fields such as biology, quantitative finance, physics, earth and climate sciences, and the neurosciences. Mimicking experimental situations, we generate time series with finite length and varying frequency content but from independent stochastic processes. Using the correlation coefficient and the maximum cross-correlation, we estimate interdependencies between these time series. With clustering coefficient and average shortest path length, we observe unweighted interaction networks, derived via thresholding the values of interdependence, to possess non-trivial topologies as compared to Erd{\"o}s-R{\´e}nyi networks, which would indicate small-world characteristics. These topologies reflect the mostly unavoidable finiteness of the data, which limits the reliability of typically used estimators of signal interdependence. We propose random networks that are tailored to the way interaction networks are derived from empirical data. Through an exemplary investigation of multichannel electroencephalographic recordings of epileptic seizures - known for their complex spatial and temporal dynamics - we show that such random networks help to distinguish network properties of interdependence structures related to seizure dynamics from those spuriously induced by the applied methods of analysis.},
  language  = {en}
}
@article{FerreinJacobsLakemeyer2005,
  author    = {Ferrein, Alexander and Jacobs, Stefan and Lakemeyer, Gerhard},
  title     = {Unreal Golog Bots / Jacobs, Stefan ; Ferrein, Alexander ; Lakemeyer, Gerhard},
  series = {IJCAI-05 Workshop on Reasoning, Representation, and Learning in Computer Games},
  journal   = {IJCAI-05 Workshop on Reasoning, Representation, and Learning in Computer Games},
  pages     = {31 -- 36},
  year      = {2005},
  language  = {en}
}
@article{ValeroBungErpicumetal.2022,
  author    = {Valero, Daniel and Bung, Daniel Bernhard and Erpicum, Sebastien and Peltier, Yann and Dewals, Benjamin},
  title     = {Unsteady shallow meandering flows in rectangular reservoirs: a modal analysis of URANS modelling},
  series = {Journal of Hydro-environment Research},
  journal   = {Journal of Hydro-environment Research},
  number    = {In Press},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1570-6443},
  doi       = {10.1016/j.jher.2022.03.002},
  year      = {2022},
  abstract  = {Shallow flows are common in natural and human-made environments. Even for simple rectangular shallow reservoirs, recent laboratory experiments show that the developing flow fields are particularly complex, involving large-scale turbulent structures. For specific combinations of reservoir size and hydraulic conditions, a meandering jet can be observed. While some aspects of this pseudo-2D flow pattern can be reproduced using a 2D numerical model, new 3D simulations, based on the unsteady Reynolds-Averaged Navier-Stokes equations, show consistent advantages as presented herein. A Proper Orthogonal Decomposition was used to characterize the four most energetic modes of the meandering jet at the free surface level, allowing comparison against experimental data and 2D (depth-averaged) numerical results. Three different isotropic eddy viscosity models (RNG k-ε, k-ε, k-ω) were tested. The 3D models accurately predicted the frequency of the modes, whereas the amplitudes of the modes and associated energy were damped for the friction-dominant cases and augmented for non-frictional ones. The performance of the three turbulence models remained essentially similar, with slightly better predictions by RNG k-ε model in the case with the highest Reynolds number. Finally, the Q-criterion was used to identify vortices and study their dynamics, assisting on the identification of the differences between: i) the three-dimensional phenomenon (here reproduced), ii) its two-dimensional footprint in the free surface (experimental observations) and iii) the depth-averaged case (represented by 2D models).},
  language  = {en}
}
@article{MuellerVeggianJannsensMasrietal.1976,
  author    = {M{\"u}ller-Veggian, Mattea and Jannsens, R. and Masri, Y. El. and Michel, C.},
  title     = {Untersuchung der Hochspinzust{\"a}nde in ¹⁷⁸,¹⁸⁰ Os},
  series = {Fr{\"u}hjahrstagung ... des Fachausschusses Kernphysik und Hochenergiephysik der DPG (Sektion A: Kernphysik) / Deutsche Physikalische Gesellschaft. 11 (1976)},
  journal   = {Fr{\"u}hjahrstagung ... des Fachausschusses Kernphysik und Hochenergiephysik der DPG (Sektion A: Kernphysik) / Deutsche Physikalische Gesellschaft. 11 (1976)},
  pages     = {950},
  year      = {1976},
  language  = {en}
}
@phdthesis{Pham2011,
  author    = {Pham, Phu Tinh},
  title     = {Upper bound limit and shakedown analysis of elastic-plastic bounded linearly kinematic hardening structures},
  publisher = {RWTH Aachen University},
  address   = {Aachen},
  pages     = {140 S.},
  year      = {2011},
  language  = {en}
}
@article{TranKreissigVuetal.2008,
  author    = {Tran, Thanh Ngoc and Kreißig, R. and Vu, Duc Khoi and Staat, Manfred},
  title     = {Upper bound limit and shakedown analysis of shells using the exact Ilyushin yield surface},
  series = {Computer \& Structures. 86 (2008)},
  journal   = {Computer \& Structures. 86 (2008)},
  isbn      = {0045-7949},
  pages     = {1683 -- 1695},
  year      = {2008},
  language  = {en}
}