TY  - JOUR
A1  - Palmer, J. W.
A1  - Lindemann, Markus
T1  - Business models and market mechanisms : evaluating efficiency in consumer electronic markets
JF  - Data base and advanced information systems. Bd. 34 (2003), H. 2
Y1  - 2003
SN  - 0105-9912
SP  - 23
EP  - 38
ER  - 
TY  - JOUR
A1  - Lindemann, Markus
A1  - Schmid, Beat F.
T1  - Framework for specifying, building and operating electronic markets
JF  - International journal of electronic commerce. Vol. 3 (1998/99), No. 2
Y1  - 1999
SN  - 1086-4415
SP  - 7
EP  - 21
ER  - 
TY  - JOUR
A1  - Lindemann, Markus
A1  - Runge, Alexander
T1  - Permanent IT-support in electronic commerce transactions
JF  - Electronic markets : the international journal of networked business. Vol. 7 (1997), iss. 1
Y1  - 1997
SN  - 1422-8890
SP  - 18
EP  - 20
ER  - 
TY  - JOUR
A1  - Sommer, F.
A1  - Gerling, Ulrich
A1  - Predel, Bruno
T1  - Comments on 'On the evaluation of interchange energies and the equilibrium constant from mixing enthalpies of a regular associated solution' by S. Lele, G.V.S. Sastry, and P. Ramachandrarao = Kommentar zu 'Zur Berechnung der Wechselwirkungsenergien und der Gleichgewichtskonstanten aus Mischungsenthalpien in regulären assoziierten Lösungen' von S. Lele, G.V.S. Sastry und P. Ramachandrarao
JF  - Zeitschrift für Metallkunde : international journal of materials research and advanced techniques. Bd. 75, H. 6
Y1  - 1984
SN  - 0044-3093 ; 0179-4841
SP  - 449
EP  - 454
ER  - 
TY  - JOUR
A1  - Gerling, Ulrich
A1  - Pool, M. J.
A1  - Predel, Bruno
T1  - A contribution to the associate model for binary liquid alloys = Ein Beitrag zum Assoziat-Modell für binäre flüssige Legierungen
JF  - Zeitschrift für Metallkunde : international journal of materials research and advanced techniques. Bd. 74, H. 9
Y1  - 1983
SN  - 0044-3093 ; 0179-4841
SP  - 616
EP  - 619
ER  - 
TY  - JOUR
A1  - Arpshofen, Ingo
A1  - Pool, M. J.
A1  - Sommer, Ferdinand
A1  - Gerling, Ulrich
A1  - Predel, Bruno
A1  - Schultheiss, Emil
T1  - Determination of the integral mixing enthalpies in the Cu-Pd-Si liquid ternary alloy system at 1600 K
JF  - Zeitschrift für Metallkunde : international journal of materials research and advanced techniques. Bd. 74, H. 1
Y1  - 1983
SN  - 0044-3093 ; 0179-4841
SP  - 25
EP  - 32
ER  - 
TY  - JOUR
A1  - Kirstein, Simon
A1  - Müller, Karsten
A1  - Walecki-Mingers, Mark
A1  - Deserno, Thomas M.
T1  - Robust adaptive flow line detection in sewer pipes
JF  - Automation in construction
N2  - As part of a novel approach to automatic sewer inspection, this paper presents a robust algorithm for automatic flow line detection. A large image repository is obtained from about 50,000 m sewers to represent the high variability of real world sewer systems. Automatic image processing combines Canny edge detection, Hough transform for straight lines and cost minimization using Dijkstra's shortest path algorithm. Assuming that flow lines are mostly smoothly connected horizontal structures, piecewise flow line delineation is reduced to a process of selecting adjacent line candidates. Costs are derived from the gap between adjacent candidates and their reliability. A single parameter α enables simple control of the algorithm. The detected flow line may precisely follow the segmented edges (α = 0.0) or minimize gaps at joints (α = 1.0). Both, manual and ground truth-based analysis indicate that α = 0.8 is optimal and independent of the sewer's material. The algorithm forms an essential step to further automation of sewer inspection.
Y1  - 2012
U6  - https://doi.org/10.1016/j.autcon.2011.05.009
SN  - 1872-7891 (E-Journal) ; 0926-5805 (Print)
IS  - 21
SP  - 24
EP  - 31
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schiffels, Johannes
A1  - Pinkenburg, Olaf
A1  - Schelden, Maximilian
A1  - Aboulnaga, El-Hussiny A. A.
A1  - Baumann, Marcus
A1  - Selmer, Thorsten
T1  - An innovative cloning platform enables large-scale production and maturation of an oxygen-tolerant [NiFe]-hydrogenase from cupriavidus necator in Escherichia coli
JF  - PLOS one. 2013
Y1  - 2013
U6  - https://doi.org/10.1371/journal.pone.0068812
SN  - 1932-6203
PB  - Public Library of Science
CY  - San Francisco, California
ER  - 
TY  - JOUR
A1  - Meliß, Michael
A1  - Späte, Frank
T1  - The solar heating system with seasonal storage at the Solar-Campus Jülich
JF  - Solar energy. Vol. 69 (2000), iss. 6
Y1  - 2000
SN  - 0038-092X
SP  - 525
EP  - 533
ER  - 
TY  - JOUR
A1  - Sommer, Ferdinand
A1  - Gerling, Ulrich
A1  - Predel, Bruno
T1  - On the evaluation of interchange energies and the equilibrium-constant from mixing enthalpies of a regular associated solution-comment
JF  - Zeitschrift für Metallkunde : international journal of materials research and advanced techniques. Bd. 75, H. 11
Y1  - 1984
SN  - 0044-3093 ; 0179-4841
SP  - 898
ER  - 
TY  - JOUR
A1  - Meliß, Michael
A1  - Oesterwind, Dieter
A1  - Voß, Alfred
T1  - Non-nuclear and non-fossil energy resources and their possibilities for future power generation
JF  - Kerntechnik
N2  - It must be stressed that the assessment of the exploitation possibilities of the energy resources discussed in this paper requires further studies. With this proviso, the situation can be provisionally summarised as follows: The total potential of known geothermal steam sources is only 64 GW. Geothermal energy could therefore only make a significant contribution to covering the worldwide power needs if we succeed in exploiting dry geothermal reservoirs. Exploitation of tidal energy is limited to a few geographically favourable locations. The power generation potential at these locations is only about 64 GW. An important drawback of tidal power is discontinuous power generation. Large scale exploitation of wind, wave and glacier energy, and of ocean heat, requires solution of a number of technological problems. The environmental effects of exploitation of these energy resources are to some extent of a qualitatively different nature from those of operation of fossil-fuel-fired and of nuclear power plants. The scanty knowledge in this area often results in these effects being underestimated. In any case, however, it would be deliberately misleading to postulate that any form of power generation is possible without some detrimental effects on the environment. It may be stated in conclusion that, owing to their small potential or to the as yet insufficiently advanced technological development, none of the energy resources discussed in this paper can make a significant contribution to the solution of middle-term energy supply problems, i.e., to a rapid replacement of mineral oil and natural gas.
Y1  - 1975
U6  - https://doi.org/10.18419/opus-8093
SN  - 0932-3902
N1  - Printausg. in der Bibliothek vorhanden: 63 ZS 010-1975
VL  - 17
IS  - 7
SP  - 301
EP  - 306
PB  - De Gruyter
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Velraj, R.
A1  - Seeniraj, R. V.
A1  - Hafner, B.
A1  - Faber, Christian
A1  - Schwarzer, Klemens
T1  - Heat transfer enhancement in a latent heat storage system
JF  - Solar energy. Vol. 65, iss. 3
Y1  - 1999
SN  - 0038-092X
SP  - 171
EP  - 180
ER  - 
TY  - JOUR
A1  - Schwarzer, Klemens
A1  - Vieira da Silva, Maria Eugenia
A1  - Schwarzer, Tarik
T1  - Field results in Namibia and Brazil of the new solar desalination system for decentralised drinking water production
JF  - Desalination and water treatment. Vol. 31 (2011), iss. 1-3: selected papers presented at EuroMed 2010 — Desalination for Clean Water and Energy: Cooperation among Mediterranean Countries of Europe and MENA Region, 3–7 October 2010, Tel Aviv, Israel
Y1  - 2011
SP  - 379
EP  - 386
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Mikulics, M.
A1  - Wu, S.
A1  - Marso, M.
T1  - Ultrafast and Highly Sensitive Photodetectors With Recessed Electrodes Fabricated on Low-Temperature-Grown GaAs. Mikulics, M.; Wu, S.; Marso, M.; Adam, R.; Förster, A.; van der Hart, A.; Kordos, P.; Lüth, H.; Sobolewski, R.
JF  - IEEE Photonics Technology Letters. 18 (2006), H. 7
Y1  - 2006
SP  - 820
EP  - 822
ER  - 
TY  - JOUR
A1  - Förster, Arnold
T1  - Ultrahigh frequency measurements of magnetic penetration length and surface impedance of YBa2Cu3O7–x microstriplines on Si and GaAs substrates . Rüders, F; Hollricher, O.;  Copetti, C. A. ; Förster,  A. ; Buchal, Ch. ; Prusseit, W.  ; Kinder, H.
JF  - Journal of Applied Physics. 77 (1995), H. 10
Y1  - 1995
SN  - 1089-7550
SP  - 5282
EP  - 5286
ER  - 
TY  - JOUR
A1  - Grotendorst, Johannes
T1  - On calculating the rate of linear convergence of non-linear transformed sequences
JF  - Proceeding SNC '11 Proceedings of the 2011 International Workshop on Symbolic-Numeric Computation
Y1  - 2011
SN  - 978-1-4503-0515-0
SP  - 24
EP  - 33
PB  - ACM
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Hauke, M.
A1  - Jakumeit, J.
A1  - Krafft, B.
T1  - DX Centers in Al0.3Ga0.7As/GaAs Analyzed by Point Contact Measurements. Hauke, M.; Jakumeit, J.; Krafft, B.; Nimtz, G.; Förster, A.; Lüth, H.
JF  - Journal of Applied Physics. 84 (1998), H. 4
Y1  - 1998
SN  - 1089-7550
SP  - 2034
EP  - 2039
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Griebel, M.
A1  - Indlekofer, K. M.
A1  - Lüth, H.
T1  - Transport properties of gated resonant tunneling diodes in the single electron regime. Griebel, M.; Indlekofer,  K. M.; Förster, A.; Lüth, H.
JF  - Journal of Applied Physics. 84 (1998), H. 12
Y1  - 1998
SN  - 1089-7550
SP  - 6719
EP  - 6724
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Lachenmann, S. G.
A1  - Kastalsky, A.
A1  - Uhlisch, D.
T1  - Hybrid superconductor/semiconductor step junction with three terminals. Lachenmann, S. G.; Kastalsky, A.; Förster A.; Uhlisch, D.; Neurohr, K.; Schäpers, Th.
JF  - Journal of Applied Physics. 83 (1998), H. 12
Y1  - 1998
SN  - 1089-7550
SP  - 8077
EP  - 8079
ER  - 
TY  - JOUR
A1  - Förster, Arnold
A1  - Darmo, J.
A1  - Dubecky, F.
A1  - Kordos, P.
T1  - Annealing effect on concentration of EL6-like deep-level state in low-temperature-grown molecular beam epitaxial GaAs. Darmo, J.; Dubecky, F.; Kordos, P.; Förster, A.
JF  - Applied Physics Letters. 72 (1998), H. 5
Y1  - 1998
SN  - 1077-3118
SP  - 590
EP  - 592
ER  -