TY  - CHAP
A1  - Mistler, M.
A1  - Butenweg, Christoph
A1  - Anthoine, A.
T1  - Evaluation of the failure criterion for masonry by homogenisation
T2  - Proceedings of the Seventh International Conference on Computational Structures Technology : [Lisbon, Portugal, 7 - 9 September 2004] / ed. by B. H. V. Topping and C.A. Mota Soares
Y1  - 2004
SN  - 0-948749-95-4
U6  - http://dx.doi.org/10.4203/ccp.79.201
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - RPRT
A1  - Artmann, Gerhard
T1  - Escherichia Coli Infektion und Zellschädigung - Wie perfekt wirken Antibiotika? : Abschlussbericht zum Projekt 1703701
Y1  - 2004
U6  - http://dx.doi.org/10.2314/GBV:482527137
PB  - Technische Informationsbibliothek u. Universitätsbibliothek
CY  - Jülich
ER  - 
TY  - CHAP
A1  - Dachwald, Bernd
T1  - Solar sail performance requirements for missions to the outer solar system and beyond
T2  - 55th International Astronautical Congress 2004
N2  - 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.
Y1  - 2004
U6  - http://dx.doi.org/10.2514/6.IAC-04-S.P.11
N1  - 55th International Astronautical Congress 2004 - Vancouver, Canada
SP  - 1
EP  - 9
ER  -