@inproceedings{Dachwald2004,
  author    = {Dachwald, Bernd},
  title     = {Solar sail performance requirements for missions to the outer solar system and beyond},
  series = {55th International Astronautical Congress 2004},
  booktitle = {55th International Astronautical Congress 2004},
  doi       = {10.2514/6.IAC-04-S.P.11},
  pages     = {1 -- 9},
  year      = {2004},
  abstract  = {Solar sails enable missions to the outer solar system and beyond, although the solar radiation pressure decreases with the square of solar distance. For such missions, the solar sail may gain a large amount of energy by first making one or more close approaches to the sun. Within this paper, optimal trajectories for solar sail missions to the outer planets and into near interstellar space (200 AU) are presented. Thereby, it is shown that even near/medium-term solar sails with relatively moderate performance allow reasonable transfer times to the boundaries of the solar system.},
  language  = {en}
}
@article{SchwarzerMuellerMertes2004,
  author    = {Schwarzer, Klemens and M{\"u}ller, C. and Mertes, C.},
  title     = {Solar thermal desalination systems with multi-layer heat recovery / C. M{\"u}ller ; K. Schwarzer ; C. Mertes ...},
  series = {Proceedings / organised by: ISES Europe ... [Ed.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V. - DGS, Munich ; PSE GmbH - Forschung Entwicklung Marketing, Freiburg]. - Vol 1},
  journal   = {Proceedings / organised by: ISES Europe ... [Ed.: Deutsche Gesellschaft f{\"u}r Sonnenenergie e.V. - DGS, Munich ; PSE GmbH - Forschung Entwicklung Marketing, Freiburg]. - Vol 1},
  publisher = {PSE},
  address   = {Freiburg [Breisgau]},
  isbn      = {3-9809656-1-9},
  pages     = {1-647-1-652},
  year      = {2004},
  language  = {en}
}
@inproceedings{Hartz2004,
  author    = {Hartz, Thomas},
  title     = {Solare Brauchwasserversorgung in Siedlungen - zentral oder dezentral?},
  series = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management},
  booktitle = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management},
  publisher = {OTTI-Energie-Kolleg},
  address   = {Regensburg},
  isbn      = {3-934681-33-6},
  pages     = {331 -- 336},
  year      = {2004},
  language  = {de}
}
@inproceedings{Faber2004,
  author    = {Faber, Christian},
  title     = {Solare Großb{\"a}ckerei in Burkina Faso als Beispiel eines solaren Prozessw{\"a}rmesystems},
  series = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management},
  booktitle = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management},
  publisher = {OTTI-Energie-Kolleg},
  address   = {Regensburg},
  isbn      = {3-934681-33-6},
  pages     = {500 -- 505},
  year      = {2004},
  language  = {de}
}
@inproceedings{Faber2004,
  author    = {Faber, Christian},
  title     = {Solare Meerwasser-Entsalzungsanlage mit mehrstufiger W{\"a}rmer{\"u}ckgewinnung},
  series = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management},
  booktitle = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai 2004, Kloster Banz, Bad Staffelstein / OTTI-Kolleg Technik, Energie, Management},
  publisher = {OTTI-Energie-Kolleg},
  address   = {Regensburg},
  isbn      = {3-934681-33-6},
  pages     = {154 -- 161},
  year      = {2004},
  language  = {de}
}
@article{SchwarzerMuellerVieiradaSilva2004,
  author    = {Schwarzer, Klemens and M{\"u}ller, C. and Vieira da Silva, E.},
  title     = {Solare Meerwasser-Entsalzungsanlagen mit mehrstufiger W{\"a}rmer{\"u}ckgewinnung / C. M{\"u}ller ; K. Schwarzer ; E. Vieira da Silva ...},
  series = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai, 2004, Kloster Banz / [Veranst.: OTTI Energie-Kolleg]},
  journal   = {14. Symposium Thermische Solarenergie : 12. bis 14. Mai, 2004, Kloster Banz / [Veranst.: OTTI Energie-Kolleg]},
  publisher = {Ostbayerisches Technologie-Transfer-Institut},
  address   = {Regensburg},
  isbn      = {3-934681-33-6},
  pages     = {154 -- 159},
  year      = {2004},
  language  = {en}
}
@article{Fabo2004,
  author    = {Fabo, Sabine},
  title     = {Sound Intermedia : ein Musikprojekt mit Mouse on Mars},
  series = {Boxenstop (Boxhorn ; 4)},
  volume    = {2004},
  journal   = {Boxenstop (Boxhorn ; 4)},
  publisher = {FH Aachen, Fachbereich Gestaltung},
  address   = {Aachen},
  pages     = {18 -- 19},
  year      = {2004},
  language  = {de}
}
@article{Lohse2004,
  author    = {Lohse, Wolfram},
  title     = {Stahlbau},
  series = {Bautechnische Zahlentafeln : [jetzt mit neuer DIN 1052, DIN1053-1 und DIN 1054] / Wendehorst. Hrsg. von Otto W. Wetzell. Bearb. von: Herwig Baumgartner ... 31., vollst. {\"u}berb. und aktualisierte Aufl.},
  journal   = {Bautechnische Zahlentafeln : [jetzt mit neuer DIN 1052, DIN1053-1 und DIN 1054] / Wendehorst. Hrsg. von Otto W. Wetzell. Bearb. von: Herwig Baumgartner ... 31., vollst. {\"u}berb. und aktualisierte Aufl.},
  publisher = {Teubner [u.a.]},
  address   = {Stuttgart [u.a.]},
  isbn      = {3-519-55002-4},
  pages     = {603 -- 738},
  year      = {2004},
  language  = {de}
}
@article{SelmerScottNaeseretal.2004,
  author    = {Selmer, Thorsten and Scott, Richard and N{\"a}ser, Ulrike and Friedrich, Peter},
  title     = {Stereochemistry of hydrogen removal from the 'unactivated' C-3 position of 4-hydroxybutyryl-CoA catalysed by 4-hydroxybutyryl-CoA dehydratase / Scott, R. ; N{\"a}ser, U. ; Friedrich, P. ; Selmer, T. ; Buckel, W. ; Golding, BT.},
  series = {Chemical Communications : ChemCom (2004)},
  journal   = {Chemical Communications : ChemCom (2004)},
  isbn      = {1364-548X},
  pages     = {1210 -- 1211},
  year      = {2004},
  language  = {en}
}
@inproceedings{Mueller2004,
  author    = {M{\"u}ller, Karsten},
  title     = {Strategien der Zustandserfassung von Abwasserkan{\"a}len},
  series = {Entwicklungen in der Kanalisationstechnik : schriftliche Fassungen der Vortr{\"a}ge zur 5. Tagung "Entwicklungen in der Kanalisationstechnik" : am 22. und 23. Juni 2004 in K{\"o}ln / MUNLV, Ministerium f{\"u}r Umwelt und Naturschutz, Landwirtschaft und Verbraucherschutz des Landes Nordrhein-Westfalen, D{\"u}sseldorf ... Tagungsleitung: Max Dohmann ... Aachener Schriften zur Stadtentwaesserung ASS. Bd. 5},
  booktitle = {Entwicklungen in der Kanalisationstechnik : schriftliche Fassungen der Vortr{\"a}ge zur 5. Tagung "Entwicklungen in der Kanalisationstechnik" : am 22. und 23. Juni 2004 in K{\"o}ln / MUNLV, Ministerium f{\"u}r Umwelt und Naturschutz, Landwirtschaft und Verbraucherschutz des Landes Nordrhein-Westfalen, D{\"u}sseldorf ... Tagungsleitung: Max Dohmann ... Aachener Schriften zur Stadtentwaesserung ASS. Bd. 5},
  publisher = {Institut f{\"u}r Siedlungswasserwirtschaft der RWTH Aachen},
  address   = {Aachen},
  pages     = {1 -- 16},
  year      = {2004},
  language  = {de}
}
@article{KeusgenSchoening2004,
  author    = {Keusgen, M. and Sch{\"o}ning, Michael Josef},
  title     = {Strategies for biosensoric detection of potential drugs in nature},
  series = {Biomedizinische Technik. 49 (2004), H. 2},
  journal   = {Biomedizinische Technik. 49 (2004), H. 2},
  isbn      = {0932-4666},
  pages     = {1004 -- 1005},
  year      = {2004},
  language  = {en}
}
@book{HegerMundiyanapurath2004,
  author    = {Heger, Michael and Mundiyanapurath, Santhosh},
  title     = {Studieren lernen und lehren. Schl{\"u}sselkompetenzen f{\"u}r Ingenieure/- innen},
  pages     = {15 S.},
  year      = {2004},
  language  = {de}
}
@article{SrnanekGeurtsLentzeetal.2004,
  author    = {Srnanek, R. and Geurts, J. and Lentze, M. and Irmer, G. and Donoval, D. and Brdecka, P. and Kordos, P. and F{\"o}rster, Arnold and Sciana, B. and Radziewicz, D. and Tlaczala, M.},
  title     = {Study of d-doped GaAs layers by micro-Raman spectroscopy on bevelled samples},
  series = {Applied surface science . 230 (2004), H. 1 -4},
  journal   = {Applied surface science . 230 (2004), H. 1 -4},
  isbn      = {0169-4332},
  pages     = {379 -- 385},
  year      = {2004},
  language  = {en}
}
@article{SelmerAndreiPieriketal.2004,
  author    = {Selmer, Thorsten and Andrei, Paula I. and Pierik, Antonio J. and Zauner, Stefan},
  title     = {Subunit composition of the glycyl radical enzyme p-hydroxyphenylacetate decarboxylase. A small subunit, HpdC, is essential for catalytic activity / Andrei, PI. ; Pierik, AJ. ; Zauner , S. ; Andrei-Selmer, LC. ; Selmer, T.},
  series = {European Journal of Biochemistry. 271 (2004), H. 11},
  journal   = {European Journal of Biochemistry. 271 (2004), H. 11},
  isbn      = {0014-2956},
  pages     = {2225 -- 2230},
  year      = {2004},
  language  = {en}
}
@article{HellwigVolkmann2004,
  author    = {Hellwig, Angelika and Volkmann, Lutz},
  title     = {Sufficient conditions for λ′-optimality in graphs of diameter 2},
  series = {Discrete mathematics},
  volume    = {Vol. 283},
  journal   = {Discrete mathematics},
  number    = {Iss. 1-3},
  issn      = {1872-681X (E-Journal); 0012-365X (Print)},
  pages     = {113 -- 120},
  year      = {2004},
  language  = {en}
}
@book{Havermann2004,
  author    = {Havermann, Marc},
  title     = {Systematische Versuche zur Ringwirbelerzeugung mit Stoßrohren / Havermann, M. [Ed. Institut Franco-Allemand de Recherches de Saint-Louis]},
  publisher = {ISL},
  address   = {Saint-Louis},
  pages     = {34 S. : Ill., graph. Darst.},
  year      = {2004},
  language  = {de}
}
@article{ChudobaButenwegPeiffer2004,
  author    = {Chudoba, Rostislav and Butenweg, Christoph and Peiffer, F.},
  title     = {Technical information system for collaborative material research},
  series = {Advances in engineering software},
  volume    = {Volume 35},
  journal   = {Advances in engineering software},
  number    = {Issue 10-11},
  issn      = {1873-5339 (E-Journal); 0965-9978 (Print)},
  doi       = {10.1016/j.advengsoft.2004.03.021},
  pages     = {747 -- 756},
  year      = {2004},
  language  = {en}
}
@article{MuehlObolenski2004,
  author    = {M{\"u}hl, Thomas and Obolenski, B.},
  title     = {Textilien und elektromagnetische Strahlung},
  series = {Melliand-Textilberichte. 85 (2004), H. 3},
  journal   = {Melliand-Textilberichte. 85 (2004), H. 3},
  isbn      = {0341-0781},
  pages     = {190 -- 192},
  year      = {2004},
  language  = {de}
}
@article{StreunBrandenburgBroekeletal.2004,
  author    = {Streun, M. and Brandenburg, G. and Br{\"o}kel, M. and Fuss, L. and Larue, H. and Parl, C. and Zimmermann, E. and Ziemons, Karl and Halling, H.},
  title     = {The ClearPET data acquisition},
  series = {2003 IEEE Nuclear Science Symposium Conference Record, Vol. 5},
  journal   = {2003 IEEE Nuclear Science Symposium Conference Record, Vol. 5},
  issn      = {1082-3654},
  pages     = {3097 -- 3100},
  year      = {2004},
  abstract  = {Within the Crystal Clear Collaboration a modular system for a small animal PET scanner (ClearPET™) has been developed. The modularity allows the assembly of scanners of different sizes and characteristics in order to fit the specific needs of the individual member institutions. Now a first demonstrator is being completed in Julich. The system performs depth of interaction detection by using a phoswich arrangement combining LSO and LuYAP scintillators which are coupled to multi-channel photomultipliers (PMTs). A free-running ADC digitizes the signal from the PMT and the complete scintillation pulses are sampled by an FPGA and sent with 20 MB/S to a PC for preprocessing. The pulse provides information about the gamma energy and the scintillator material which identifies the interaction layer. Furthermore, the exact pulse starting time is obtained from the sampled data. This is important as no hardware coincidence detection is implemented. All single events are recorded and coincidences are identified by software. An advantage of that is that the coincidence window and the dimensions of the field of view can be adjusted easily. The ClearPET™ demonstrator is equipped with 10240 crystals on 80 PMTs. This paper presents an overview of the data acquisition system.},
  language  = {en}
}
@article{AuffrayBruyndonckxDevroedeetal.2004,
  author    = {Auffray, Etiennette and Bruyndonckx, P. and Devroede, O. and Fedorov, A. and Ziemons, Karl},
  title     = {The ClearPET project},
  series = {Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
  volume    = {527},
  journal   = {Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment},
  number    = {1-2},
  isbn      = {0168-9002},
  pages     = {171 -- 174},
  year      = {2004},
  abstract  = {The Crystal Clear Collaboration has designed and is building a high-resolution small animal PET scanner. The design is based on the use of the Hamamatsu R7600-M64 multi-anode photomultiplier tube and a LSO/LuYAP phoswich matrix with one to one coupling between the crystals and the photo-detector. The complete system will have 80 PM tubes in four rings with an inner diameter of 137 mm and an axial field of view of 110 mm. The PM pulses are digitized by free-running ADCs and digital data processing determines the gamma energy, the phoswich layer and even the pulse arrival time. Single gamma interactions are recorded and coincidences are found by software. The gantry allows rotation of the detector modules around the field of view. Simulations, and measurements a 2×4 module test set-up predict a spatial resolution of 1.5 mm in the centre of the field of view and a sensitivity of 5.9\% for a point source in the centre of the field of view.},
  language  = {en}
}