@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} } @article{Olk2006, author = {Olk, Ulrich}, title = {Unfallverh{\"u}tung}, series = {Zahlentafeln f{\"u}r den Baubetrieb / Hoffmann, Manfred ; Kuhlmann, Willy [Hrsg.]. 7., vollst. {\"u}berarb. Aufl.}, journal = {Zahlentafeln f{\"u}r den Baubetrieb / Hoffmann, Manfred ; Kuhlmann, Willy [Hrsg.]. 7., vollst. {\"u}berarb. Aufl.}, publisher = {Teubner}, address = {Wiesbaden}, isbn = {3-519-65220-X}, pages = {833 -- 929}, year = {2006}, language = {de} } @article{SchwarzerEhrhardtBayeretal.1982, author = {Schwarzer, Klemens and Ehrhardt, J. and Bayer, A. and Kroeger, W.}, title = {Unfallfolgen- und Risikoabsch{\"a}tzung f{\"u}r die probabilistische HTR-1160-Sicherheitsstudie / J. Ehrhardt ; A. Bayer ; W. Kroeger ; K. Schwarzer}, series = {Atomwirtschaft - Atomtechnik. 27 (1982), H. 10}, journal = {Atomwirtschaft - Atomtechnik. 27 (1982), H. 10}, isbn = {0004-721x}, pages = {527 -- 529}, year = {1982}, language = {de} } @article{FredebeulKreinVogel2006, author = {Fredebeul-Krein, Markus and Vogel, Erika}, title = {Underground Storage Facilities in the German natural gas market: A need for access regulation to ensure competition?}, series = {Zeitschrift f{\"u}r Energiewirtschaft. 30 (2006), H. 4}, journal = {Zeitschrift f{\"u}r Energiewirtschaft. 30 (2006), H. 4}, isbn = {0343-5377}, pages = {257 -- 270}, year = {2006}, language = {en} } @article{WittmannGillessenOttoetal.1996, author = {Wittmann, Klaus and Gillessen, F. and Otto, G. and R{\"o}stel, R.}, title = {Undercooling and solidification of metallic melts suspended in a non-nucleating matrix: Experiment NUCAL of the German Spacelab Mission D-2}, series = {Acta Astronautica. 38 (1996), H. 1}, journal = {Acta Astronautica. 38 (1996), H. 1}, isbn = {0094-5765}, pages = {63 -- 68}, year = {1996}, language = {en} } @article{FellinKingKirschetal.2010, author = {Fellin, Wolfgang and King, Julian and Kirsch, Ansgar and Oberguggenberger, Michael}, title = {Uncertainty modelling and sensitivity analysis of tunnel face stability}, series = {Structural safety}, volume = {32}, journal = {Structural safety}, number = {6}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0167-4730}, doi = {10.1016/j.strusafe.2010.06.001}, pages = {402 -- 410}, year = {2010}, abstract = {This paper proposes an approach to the choice and evaluation of engineering models with the aid of a typical application in geotechnics. An important issue in the construction of shallow tunnels, especially in weak ground conditions, is the tunnel face stability. Various theoretical and numerical models for predicting the necessary support pressure have been put forth in the literature. In this paper, we combine laboratory experiments performed at the University of Innsbruck with current methods of uncertainty and sensitivity analysis for assessing adequacy, predictive power and robustness of the models. The major issues are the handling of the twofold uncertainty of test results and of model predictions as well as the decision about what are the influential input parameters.}, language = {en} } @article{TimmeHuelk2002, author = {Timme, Michael and H{\"u}lk, Fabian}, title = {Unbefristete Widerspruchsm{\"o}glichkeit des Schuldners im Einzugserm{\"a}chtigungslastschriftverfahren}, series = {Neue Juristische Wochenschrift (2002)}, journal = {Neue Juristische Wochenschrift (2002)}, pages = {1243 -- 1244}, year = {2002}, language = {de} } @article{SchubaBusboomHerwonoetal.2002, author = {Schuba, Marko and Busboom, Axel and Herwono, Ian and Zavagli, Guido}, title = {Unambiguous Device Identification and Fast Connection Setup in Bluetooth / Busboom, Axel ; Herwono, Ian ; Schuba, Marko ; Zavagli, Guido}, series = {European wireless 2002 : next generation wireless networks: technologies, protocols, services and applications ; technical sessions: 26 - 28 February 2002, tutorials: 25 February 2002, Centro Affari, Florence, Italy ; proceedings / sponsored by EUREL ... General chair: Luciano Lenzini}, journal = {European wireless 2002 : next generation wireless networks: technologies, protocols, services and applications ; technical sessions: 26 - 28 February 2002, tutorials: 25 February 2002, Centro Affari, Florence, Italy ; proceedings / sponsored by EUREL ... General chair: Luciano Lenzini}, pages = {1 -- 5}, year = {2002}, language = {en} } @article{PaschmannKuhlmann1996, author = {Paschmann, Hans and Kuhlmann, Karl}, title = {Umweltvertr{\"a}glicher Baustoff Beton von den Ausgangsstoffen bis zur Wiederverwertung / Kuhlmann, Karl; Paschmann, Hans}, series = {BFT Betonwerk + Fertigteil-Technik. 62 (1996), H. 1}, journal = {BFT Betonwerk + Fertigteil-Technik. 62 (1996), H. 1}, isbn = {0373-4331}, pages = {112 -- 121}, year = {1996}, language = {de} } @article{LassonczykGrupe1993, author = {Lassonczyk, Beate and Grupe, M.}, title = {Umweltaudit aus der Sicht des Bodenschutzes}, series = {Umweltschutz-Management und {\"O}ko-Auditing / Manfred Sietz ... (Hrsg.)}, journal = {Umweltschutz-Management und {\"O}ko-Auditing / Manfred Sietz ... (Hrsg.)}, publisher = {Springer}, address = {Berlin}, isbn = {3-540-56911-1}, pages = {133 -- 141}, year = {1993}, language = {de} }