@inproceedings{GoemmelButenwegKob2007,
  author    = {G{\"o}mmel, A. and Butenweg, Christoph and Kob, M.},
  title     = {A fluid-structure interaction model of vocal fold oscillation},
  series = {5th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications, MAVEBA 2007},
  booktitle = {5th International Workshop on Models and Analysis of Vocal Emissions for Biomedical Applications, MAVEBA 2007},
  isbn      = {978-888453674-7},
  pages     = {127 -- 128},
  year      = {2007},
  abstract  = {Since fluid-structure interaction within the finite-element method is state of the art in many engineering fields, this method is used in voice analysis. A quasi two-dimensional model of the vocal folds including the ventricular folds is presented. First results of self-sustained vocal fold oscillation are presented and possibilities as well as limitations are discussed.},
  language  = {en}
}
@inproceedings{FredebeulKrein2007,
  author    = {Fredebeul-Krein, Markus},
  title     = {10 years of liberalised telecom markets in Germany: Assessing the degree of competition on the markets for voice telephony},
  year      = {2007},
  abstract  = {Market data for the German telecom market shows that Deutsche Telekom as the former incumbent is constantly loosing shares on all arkets for voice telephony: the market for local calls, the market for long-distance calls and the market for international calls. At the same time prices decline steadily with the latest trend being that operators offer voice services free of charge, the costs of which are covered by a monthly subscription charge. Against this background the paper examines the state of policy and regulatory reform in the telecommunications sector in Germany almost 10 years after the liberalisation of the fixed telecommunications market. Thereby the focus is on the analysis of the competitive conditions that have been established on the German market for voice telephony services. If these retail markets are competitive, there might be a need to remove remaining regulatory provisions. In the new environment of converging markets the future challenge of regulating fixed telecom markets might be to ensure that access to the network and/or services of a potentially dominant provider in a relevant market will satisfy requirements for openness and non-discrimination.},
  subject      = {Telekommunikationsmarkt},
  language  = {en}
}
@inproceedings{DoeringFeldmannKuhnhenne2007,
  author    = {D{\"o}ring, Bernd and Feldmann, Markus and Kuhnhenne, Markus},
  title     = {An innovative thermally activated light-weight steel deck system - numerical investigations and practical tests},
  series = {Clima 2007 WellBeing Indoors: 9th Rehva World Congress, 10-14 June 2007, Helsinki, Finland : proceedings},
  booktitle = {Clima 2007 WellBeing Indoors: 9th Rehva World Congress, 10-14 June 2007, Helsinki, Finland : proceedings},
  address   = {Helsinki},
  isbn      = {978-952-99898-2-9},
  pages     = {1 -- 8},
  year      = {2007},
  language  = {en}
}
@inproceedings{DrummSchmittDoetal.2007,
  author    = {Drumm, Christian and Schmitt, Matthias and Do, Hong-Hai and Rahm, Erhard},
  title     = {Quickmig: automatic schema matching for data migration projects},
  series = {Proceedings of the 2007 ACM Conference on Information and Knowledge Management / CIKM'07, Lisboa, Portugal, Nov. 6 - 10, 2007},
  booktitle = {Proceedings of the 2007 ACM Conference on Information and Knowledge Management / CIKM'07, Lisboa, Portugal, Nov. 6 - 10, 2007},
  isbn      = {978-1-59593-803-9},
  doi       = {10.1145/1321440.1321458},
  pages     = {107 -- 116},
  year      = {2007},
  language  = {en}
}
@inproceedings{DiltheySchleserPuterman2007,
  author    = {Dilthey, Ulrich and Schleser, Markus and Puterman, Moshe},
  title     = {Investigation and improvement of concrete reinforced with epoxy impregnated fabrics},
  series = {Proceedings / 12th International Congress Polymers in Concrete, ICPIC 07, chuncheon, Korea, Sept. 26. - 28., 2007},
  booktitle = {Proceedings / 12th International Congress Polymers in Concrete, ICPIC 07, chuncheon, Korea, Sept. 26. - 28., 2007},
  publisher = {Kangwoon National Univ.},
  address   = {Chancheon},
  isbn      = {978-89-9600450-9},
  pages     = {725 -- 733},
  year      = {2007},
  language  = {en}
}
@inproceedings{DiltheySchleserHeggeretal.2007,
  author    = {Dilthey, Ulrich and Schleser, Markus and Hegger, Josef and Voss, Stefan},
  title     = {Load-bearing behaviour of polymer-impregnated textiles in concrete},
  series = {Fifth International Workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC 5) : Mainz, July 10 - 13, 2007. (RILEM proceedings. 53)},
  booktitle = {Fifth International Workshop on High Performance Fiber Reinforced Cement Composites (HPFRCC 5) : Mainz, July 10 - 13, 2007. (RILEM proceedings. 53)},
  editor    = {Reinhardt, Hans W.},
  publisher = {RILEM Publ.},
  address   = {Bagneux},
  organization    = {International Workshop on High Performance Fiber Reinforced Cement Composites <5, 2007, Mainz>},
  isbn      = {978-2-35158-046-2},
  pages     = {183 -- 192},
  year      = {2007},
  language  = {en}
}
@inproceedings{DiltheySchleserChudobaetal.2007,
  author    = {Dilthey, Ulrich and Schleser, Markus and Chudoba, Rostislav and Konrad, Martin},
  title     = {Experimental investigation and micro-mechanical simulaltion of concrete reinforced with epoxy impregnated fabrics},
  series = {Fibre-reinforced polymer reinforcement for concrete structures : proceedings of the 8th international conference : Patras, Greece, July 16- 18, 2007},
  booktitle = {Fibre-reinforced polymer reinforcement for concrete structures : proceedings of the 8th international conference : Patras, Greece, July 16- 18, 2007},
  editor    = {Triantafillou, T. C.},
  publisher = {Univ.},
  address   = {Patras},
  organization    = {International Symposium on Fibre-Reinforced Polymer Reinforcement for Concrete Structures <8, 2007, Patras>},
  isbn      = {9608969107},
  pages     = {456 -- 457},
  year      = {2007},
  language  = {en}
}
@inproceedings{DachwaldSeboldtLoebetal.2007,
  author    = {Dachwald, Bernd and Seboldt, Wolfgang and Loeb, Horst W. and Schartner, Karl-Heinz},
  title     = {A comparison of SEP and NEP for a main belt asteroid sample return mission},
  series = {7th International Symposium on Launcher Technologies, Barcelona, Spain, 02-05 April 2007},
  booktitle = {7th International Symposium on Launcher Technologies, Barcelona, Spain, 02-05 April 2007},
  pages     = {1 -- 10},
  year      = {2007},
  abstract  = {Innovative interplanetary deep space missions, like a main belt asteroid sample return mission, require ever larger velocity increments (∆V s) and thus ever more demanding propulsion capabilities. Providing much larger exhaust velocities than chemical high-thrust systems, electric low-thrust space-propulsion systems can significantly enhance or even enable such high-energy missions. In 1995, a European-Russian Joint Study Group (JSG) presented a study report on "Advanced Interplanetary Missions Using Nuclear-Electric Propulsion" (NEP). One of the investigated reference missions was a sample return (SR) from the main belt asteroid (19) Fortuna. The envisaged nuclear power plant, Topaz-25, however, could not be realized and also the worldwide developments in space reactor hardware stalled. In this paper, we investigate, whether such a mission is also feasible using a solar electric propulsion (SEP) system and compare our SEP results to corresponding NEP results.},
  language  = {en}
}
@inproceedings{DachwaldMengaliQuartaetal.2007,
  author    = {Dachwald, Bernd and Mengali, Giovanni and Quarta, Alessandro A and Macdonald, Malcolm and McInnes, Colin R},
  title     = {Optical solar sail degradation modelling},
  series = {1st International Symposium on Solar Sailing},
  booktitle = {1st International Symposium on Solar Sailing},
  pages     = {1 -- 27},
  year      = {2007},
  abstract  = {We propose a simple parametric OSSD model that describes the variation of the sail film's optical coefficients with time, depending on the sail film's environmental history, i.e., the radiation dose. The primary intention of our model is not to describe the exact behavior of specific film-coating combinations in the real space environment, but to provide a more general parametric framework for describing the general optical degradation behavior of solar sails.},
  language  = {en}
}
@inproceedings{DachwaldKahleWie2007,
  author    = {Dachwald, Bernd and Kahle, Ralph and Wie, Bong},
  title     = {Head-on impact deflection of NEAs: a case study for 99942 Apophis},
  series = {Planetary Defense Conference 2007},
  booktitle = {Planetary Defense Conference 2007},
  pages     = {1 -- 12},
  year      = {2007},
  abstract  = {Near-Earth asteroid (NEA) 99942 Apophis provides a typical example for the evolution of asteroid orbits that lead to Earth-impacts after a close Earth-encounter that results in a resonant return. Apophis will have a close Earth-encounter in 2029 with potential very close subsequent Earth-encounters (or even an impact) in 2036 or later, depending on whether it passes through one of several less than 1 km-sized gravitational keyholes during its 2029-encounter. A pre-2029 kinetic impact is a very favorable option to nudge the asteroid out of a keyhole. The highest impact velocity and thus deflection can be achieved from a trajectory that is retrograde to Apophis orbit. With a chemical or electric propulsion system, however, many gravity assists and thus a long time is required to achieve this. We show in this paper that the solar sail might be the better propulsion system for such a mission: a solar sail Kinetic Energy Impactor (KEI) spacecraft could impact Apophis from a retrograde trajectory with a very high relative velocity (75-80 km/s) during one of its perihelion passages. The spacecraft consists of a 160 m × 160 m, 168 kg solar sail assembly and a 150 kg impactor. Although conventional spacecraft can also achieve the required minimum deflection of 1 km for this approx. 320 m-sized object from a prograde trajectory, our solar sail KEI concept also allows the deflection of larger objects. For a launch in 2020, we also show that, even after Apophis has flown through one of the gravitational keyholes in 2029, the solar sail KEI concept is still feasible to prevent Apophis from impacting the Earth, but many KEIs would be required for consecutive impacts to increase the total Earth-miss distance to a safe value},
  language  = {en}
}