TY  - JOUR
A1  - Stulpe, Werner
T1  - Unitary Operator
JF  - Compendium of Quantum Physics : concepts, experiments, history and philosophy / Daniel Greenberger ... ed.
Y1  - 2009
SN  - 978-3-540-70622-9
SP  - 807
EP  - 809
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Funke, Harald
A1  - Esch, Thomas
A1  - Roosen, Peter
ED  - Bartz, Wilfried J.
T1  - Using motor gasoline for aircrafts - coping with growing bio-fuel-caused risks by understanding cause-effect relationship
T2  - Fuels 2009 : mineral oil based and alternative fuels ; 7th international colloquium ; January 14 - 15, 2009
N2  - The utilisation of vehicle-oriented gasoline in general aviation is very desirable for both ecological and economical reasons, as well as for general considerations of availability. As of today vehicle fuels may be used if the respective engine and cell are certified for such an operation. For older planes a supplementary technical certificate is provided for gasoline mixtures with less than 1 % v/v ethanol only, though. Larger admixtures of ethanol may lead to sudden engine malfunction and should be considered as considerable security risks. Major problems are caused by the partially ethanol non-withstanding materials, a necessarily changed stochiometric adjustment of the engine for varying ethanol shares and the tendency for phase separation in the presence of absorbed water. The concepts of the flexible fuel vehicles are only partially applicable in the view of air security.
Y1  - 2009
SN  - 978-3-924813-75-8
SP  - 237
EP  - 244
PB  - Technische Akademie Esslingen (TAE)
CY  - Ostfildern
ER  - 
TY  - JOUR
A1  - Pieper, Martin
T1  - Vector hyperinterpolation on the sphere
JF  - Journal of approximation theory. 156 (2009), H. 2
Y1  - 2009
SN  - 0021-9045
SP  - 173
EP  - 186
ER  - 
TY  - CHAP
A1  - Ahlbrink, Nils
A1  - Alexopoulos, Spiros
A1  - Andersson, Joel A. E.
A1  - Belhomme, B.
A1  - Teixeira Boura, Cristiano José
A1  - Gall, Jan
A1  - Hirsch, Tobias
T1  - viCERP - the Virtual Institute of Central Receiver Power Plant
T2  - MATHMOD 2009 - 6th Vienna International Conference on Mathematical Modelling : February 11 - 13, 2009, Vienna, Austria. ARGESIM Report. No. 35
Y1  - 2009
SN  - 978-3-901608-35-3
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Pulini, Paola
A1  - Gligorevic, Snjezana
T1  - WIMAX performance in the airport environment
T2  - Multi-carrier systems & solutions 2009. (Lecture notes in electrical engineering ; 41)
N2  - In this paper, the multicarrier physical layers of WiMAX are evaluated in the context of airport data links. The orthogonal frequency-division multiplexing (OFDM) and orthogonal frequency-division multiple-access (OFDMA) cases are applied to the forward link (FL) and reverse link (RL), respectively. The performance of the so called parking and taxi scenarios is presented for airport communications in C-band. Numerical results show that the proposed scheme brings good performance for both the FL and the RL. For the OFDMA case a structure changing called double-tile is also proposed to improve the system performance.
Y1  - 2009
SN  - 978-90-481-2529-6 (Print) ; 978-90-481-2530-2 (Online)
SP  - 301
EP  - 310
PB  - Springer
CY  - Berlin [u.a.]
ER  -