TY  - JOUR
A1  - Oertel, Mario
A1  - Bung, Daniel Bernhard
T1  - Stability and scour development of bed material on crossbar block ramps
JF  - International journal of sediment research
N2  - Block ramps are ecologically oriented drop structures with adequate energy dissipation and partially moderate flow velocities. A special case is given with crossbar block ramps, where the upstream and downstream level difference is reduced by a series of basins. To prevent the total structure from failing, the stability of single boulders within the crossbars and the bed material in between must be guaranteed. The present paper addresses the stability of bed material and scour development for various flow regimes. Any bed material erosion may affect the stability of the crossbar boulders, which in turn can result in major damages of the ramp. Therefore new design approaches are developed to choose an appropriate bed material size and to avoid failures of crossbar block ramp structures.
Y1  - 2015
U6  - https://doi.org/10.1016/j.ijsrc.2014.12.003
SN  - 1001-6279
VL  - 30
IS  - 4
SP  - 344
EP  - 350
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schuba, Marko
T1  - SRMT-a scalable and reliable multicast transport protocol
JF  - IEEE International Conference on Communications, 1998. ICC 98. Vol. 1
Y1  - 1998
SN  - 0-7803-4788-9
SP  - 612
EP  - 616
ER  - 
TY  - JOUR
A1  - Kolymbas, Dimitrios
A1  - Fellin, W.
A1  - Kirsch, Ansgar
T1  - Squeezing due to stress relaxation in foliated rock
JF  - International journal for numerical and analytical methods in geomechanics
Y1  - 2006
U6  - https://doi.org/10.1002/nag.530
SN  - 1096-9853 (E-Journal); 0363-9061 (Print)
VL  - Vol. 30
IS  - Iss. 13
SP  - 1357
EP  - 1367
ER  - 
TY  - JOUR
A1  - Gartzen, Johannes
T1  - Spätes Aufwachen aus dem Dornröschenschlaf: Ohne Energie läuft nichts
JF  - Aachener Nachrichten (2011)
Y1  - 2011
SP  - 22
PB  - Zeitungsverl. Aachen
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Oberländer, Jan
A1  - Mayer, Marlena
A1  - Greeff, Anton
A1  - Keusgen, Michael
A1  - Schöning, Michael Josef
T1  - Spore-based biosensor to monitor the microbicidal efficacy of gaseous hydrogen peroxide sterilization processes
JF  - Biosensors and Bioelectronics
N2  - In this work, a spore-based biosensor is evaluated to monitor the microbicidal efficacy of sterilization processes applying gaseous hydrogen peroxide (H2O2). The sensor is based on interdigitated electrode structures (IDEs) that have been fabricated by means of thin-film technologies. Impedimetric measurements are applied to study the effect of sterilization process on spores of Bacillus atrophaeus. This resilient microorganism is commonly used in industry to proof the sterilization efficiency. The sensor measurements are accompanied by conventional microbiological challenge tests, as well as morphological characterizations with scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The sensor measurements are correlated with the microbiological test routines. In both methods, namely the sensor-based and microbiological one, a tailing effect has been observed. The results are evaluated and discussed in a three-dimensional calibration plot demonstrating the sensor's suitability to enable a rapid process decision in terms of a successfully performed sterilization.
Y1  - 2018
U6  - https://doi.org/10.1016/j.bios.2017.12.045
SN  - 0956-5663
VL  - 104
SP  - 87
EP  - 94
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Hartmann, A.
A1  - Dieker, Ch.
A1  - Hollfelder, M.
T1  - Spontaneous formation of tilted AlGaAS/GaAs superlattice during AlGaAs growth. Hartmann, A.; Dieker, Ch.; Hollfelder, M.; Hardtdegen, H.; Förster, A.; Lüth, H.
JF  - Applied Surface Science. 123-124 (1998)
Y1  - 1998
SN  - 0169-4332
N1  - = Proceedings of the Sixth International Conference on the Formation of Semiconductor Interfaces
SP  - 704
EP  - 709
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Kurzawa, R.
A1  - Schmitt, W.
A1  - Güntherodt, G.
T1  - Spin-resolved photoemission study of in situ grown epitaxial Fe layers on W(110). Kurzawa, R.; Kämper, K.-P.; Schmitt, W.; Güntherodt, G.
JF  - Solid State Communications. 60 (1986), H. 10
Y1  - 1986
SN  - 0038-1098
SP  - 777
EP  - 780
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Abraham, D. L.
A1  - Hopster, H.
T1  - Spin-polarized electron-energy-loss spectroscopy on epitaxial fcc Co layers on Cu(001)
JF  - Physical Review B. 45 (1992), H. 24
Y1  - 1992
SN  - 1095-3795
SP  - 14335
EP  - 14346
ER  - 
TY  - JOUR
A1  - Kämper, Klaus-Peter
A1  - Pappas, D. P.
A1  - Miller, B. P.
A1  - Hopster, H.
T1  - Spin-dependent electron attenuation by transmission through thin ferromagnetic films . Pappas, D. P.; Kämper,K.-P.; Miller, B. P.; Hopster, H.; Fowler, D. E.; Brundle, C. R.; Luntz, A. C.; Shen, Z.-X.
JF  - Physical Review Letters. 66 (1991), H. 4
Y1  - 1991
SN  - 1079-7114
SP  - 504
EP  - 507
ER  - 
TY  - JOUR
A1  - Kappmeyer, K.
A1  - Kotliar, Konstantin
A1  - Lanzl, I. M.
T1  - Spielen von Blasinstrumenten und Augeninnendruck
JF  - Zeitschrift für praktische Augenheilkunde & augenärztliche Fortbildung : ZPA
Y1  - 2009
SN  - 1436-0322
VL  - Bd. 30
SP  - 169
EP  - 171
ER  - 
TY  - JOUR
A1  - Dienst, Karl-Jakob
A1  - Ott, Udo
T1  - Spezielle nichtkommutative pappussche affine zweiseitige Inzidenzgruppen
JF  - Archiv der Mathematik
Y1  - 1972
SN  - 0003-889X
U6  - https://doi.org/10.1007/BF01304890
VL  - 23
IS  - 1
SP  - 329
EP  - 336
PB  - Springer
CY  - Heidelberg
ER  - 
TY  - JOUR
A1  - Müller, Thomas
T1  - Spekulationsgewinn bei vorweggenommener Erbfolge im Hinblick auf früher zu einem land- und forstwirtschaftlichen Betrieb gehörenden Wohngebäuden?
JF  - Finanz-Rundschau Ertragsteuerrecht : FR
Y1  - 2001
SN  - 0176-7771 (Print); 0940-452X (Print); 1438-3292 (Print)
IS  - H. 13
SP  - 682
EP  - 683
ER  - 
TY  - JOUR
A1  - Göttsche, Joachim
A1  - Tamme, Rainer
A1  - Nunez, Thomas
T1  - Speicherung für Hochtemperaturwärme / Rainer Tamme ; Joachim Göttsche ; Thomas Nunez
JF  - Wärme und Kälte - Energie aus Sonne und Erde : Jahrestagung des Forschungsverbunds Sonnenenergie in Kooperation mit der Landesinitiative Zukunftsenergie NRW / Stadermann, Gerd, Hrsg.
Y1  - 2005
SP  - 126
EP  - 131
PB  - Forschungsverbund Sonnenenergie
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Herrmann, Ulf
A1  - Schwarzenbart, Marc
A1  - Dittmann-Gabriel, Sören
T1  - Speicher statt Kohle. Integration thermischer Stromspeicher in vorhandene Kraftwerksstandorte
JF  - BWK : Das Energie-Fachmagazin
Y1  - 2019
SN  - 1436-4883
VL  - 71
IS  - 4
SP  - 42
EP  - 45
PB  - Springer-VDI-Verl.
CY  - Düsseldorf
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schmidt, T.
A1  - Haug, R. J.
T1  - Spectroscopy of the single-particle states of a quantum-dot molecule / T. Schmidt ; R. J. Haug ; K. v. Klitzing ; A. Förster ...
JF  - Physical review letters. 78 (1997), H. 8
Y1  - 1997
SN  - 0031-9007
N1  - ISSN der E-Ausg.: 1079-7114
SP  - 1544
EP  - 1547
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Schmidt, T.
A1  - Haug, R. J.
T1  - Spectroscopy of local density of states fluctuations in a disordered conductor / T. Schmidt ; R. J. Haug ; V. I. Fal'ko ... A. Förster ...
JF  - Europhysics letters. 36 (1996), H. 1
Y1  - 1996
SN  - 1286-4854
SP  - 61
EP  - 66
ER  - 
TY  - JOUR
A1  - Vitusevich, S. A.
A1  - Förster, Arnold
A1  - Reetz, W.
A1  - Lüth, H.
A1  - Belyaev, A. E.
A1  - Danylyuk, S. V.
T1  - Spectral Responsivity of single-quantum-well photodetectors
JF  - Applied Physics Letters. 77 (2000), H. 1
Y1  - 2000
SN  - 1077-3118
SP  - 16
EP  - 18
ER  - 
TY  - JOUR
A1  - Kallweit, Stephan
A1  - Dues, M. W.
A1  - Siekmann, H. E.
T1  - Spectral Analysis of Pressure Fluctuations and Velocity Fields as Investigated on Propeller Pumps / Dues, M. W. ; Kallweit, S. D. ; Siekmann, H. E.
JF  - Preprints : Fifth International Symposium on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-5) : May 8 - 11, 1994, Maui Marriott Hotel, Kaanapali, Maui, Hawaii, U.S.A / sponsored by Pacific Center of Thermal-Fluids Engineering. [W.-J. Yang, chairman] / Vol. B.
Y1  - 1994
N1  - International Symposium on Transport Phenomena and Dynamics of Rotating Machinery 5, 1994, Kaanapali, Hawaii
SP  - 98
EP  - 112
ER  - 
TY  - JOUR
A1  - Boecker, Henning
A1  - Kuwert, Torsten
A1  - Langen, Karl-J.
A1  - Lange, Herwig W.
A1  - Czech, Norbert
A1  - Ziemons, Karl
A1  - Herzog, Hans
A1  - Shikare, Shekar
A1  - Weindl, Anton
A1  - Feinendegen, Ludwig E.
T1  - SPECT with HMPAO compared to PET with FDG in Huntington disease
JF  - Journal of Computer Assisted Tomography
Y1  - 1994
SN  - 1532-3145
VL  - 18
IS  - 4
SP  - 542
EP  - 548
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
T1  - Specifying Soccer Moves with Golog
JF  - Book of abstracts : Cologne, 15 - 17 September 2004 / 1st International Working Conference IT and Sport & 5th conference DVS-Section Computer Science in Sport
Y1  - 2005
SN  - 3-00-014576-1
N1  - International Working Conference IT and Sport 1, 2004, Köln ; Deutsche Vereinigung für Sportwissenschaft
SP  - 161
EP  - 165
PB  - German Sport Univ.
CY  - Köln
ER  -