TY  - JOUR
A1  - Fischer, Jan-Thomas
A1  - Kowalski, Julia
A1  - Pudasaini, Shiva P.
A1  - Miller, S. A.
T1  - Dynamic Avalanche Modeling in Natural Terrain
JF  - International Snow Science Workshop, Davos 2009, Proceedings ; Proc. ISSW 2009
N2  - The powerful avalanche simulation toolbox RAMMS (Rapid Mass Movements) is based on a depth-averaged
hydrodynamic system of equations with a Voellmy-Salm friction relation. The two empirical friction parameters
μ and �  correspond to a dry Coulomb friction and a viscous resistance, respectively. Although μ and � lack a
proper physical explanation, 60 years of acquired avalanche data in the Swiss Alps made a systematic calibration
possible. RAMMS can therefore successfully model avalanche flow depth, velocities, impact pressure and run
out distances. Pudasaini and Hutter (2003) have proposed extended, rigorously derived model equations that
account for local curvature and twist. A coordinate transformation into a reference system, applied to the actual
mountain topography of the natural avalanche path, is performed. The local curvature and the twist of the
avalanche path induce an additional term in the overburden pressure. This leads to a modification of the Coulomb
friction, the free-surface pressure gradient, the pressure induced by the channel, and the gravity components
along and normal to the curved and twisted reference surface. This eventually guides the flow dynamics and
deposits of avalanches. In the present study, we investigate the influence of curvature on avalanche flow in
real mountain terrain. Simulations of real avalanche paths are performed and compared for the different models
approaches. An algorithm to calculate curvature in real terrain is introduced in RAMMS. This leads to a curvature
dependent friction relation in an extended version of the Voellmy-Salm model equations. Our analysis provides
yet another step in interpreting the physical meaning and significance of the friction parameters used in the
RAMMS computational environment.
KW  - snow
KW  - avalanche
Y1  - 2009
SP  - 448
EP  - 452
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Steinbauer, Gerald
A1  - McPhillips, Graeme
A1  - Niemüller, Tim
A1  - Potgieter, Anet
T1  - Team Zadeat 2009 : team report
Y1  - 2009
VL  - 6
SP  - 1
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Schiffer, Stefan
A1  - Lakemeyer, Gerhard
T1  - Embedding fuzzy controllers in golog  / Ferrein, Alexander ; Schiffer, Stefan ; Lakemeyer, Gerhard
JF  - IEEE International Conference on Fuzzy Systems, 2009. FUZZ-IEEE 2009
Y1  - 2009
SN  - 978-1-4244-3596-8
SP  - 894
EP  - 899
PB  - IEEE
CY  - New York
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Rens, Gavin
A1  - Poel, Etienne van der
T1  - A BDI agent architecture for a POMDP planner / Rens, Gavin ; Ferrein, Alexander ; Poel, Etienne van der
Y1  - 2009
N1  - 9th International Symposium on Logical Formalization of Commonsense Reasoning: Commonsense 2009, Toronto, Canada, 1-3 June, 2009
SP  - 1
EP  - 6
ER  - 
TY  - CHAP
A1  - Ferrein, Alexander
A1  - Potgieter, Anet
A1  - Steinbauer, Gerald
T1  - Self-aware robots - What do we need from learning, deliberation, and reactive control?
T2  - HYCAS 2009 : International Workshop on Hybrid Control of Autonomous Systems : Integrating Learning, Deliberation and Reactive Control : Pasadena, Calif., 13 July 2009
Y1  - 2009
SP  - 1
EP  - 5
PB  - AAAI Pr.
ER  - 
TY  - BOOK
A1  - Ferrein, Alexander
A1  - Pauli, J.
A1  - Siebel, N. T.
A1  - Steinbauer, Gerald
T1  - Hybrid control for autonomous systems : [... 1st Workshop on Hybrid Control of Autonomous Systems - Integrating Learning, Deliberation and Reactive Control with the 21st International Joint Conference on Artificial Intelligence (IJCAI-09), held in Pasadena, CA, in July 2009] / ed. by Alexander Ferrein ...
Y1  - 2009
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Jacobs, Stefan
A1  - Schiffer, Stefan
A1  - Beck, Daniel
T1  - Robust Collision Avoidance in Unknown Domestic Environments  /  Jacobs, Stefan ; Ferrein, Alexander ; Schiffer, Stefan ; Beck, Daniel ; Lakemeyer, Gerhard
JF  - ROBOCUP 2009: ROBOT SOCCER WORLD CUP XIII
Y1  - 2009
N1  - Lecture Notes in Computer Science ; 5949
SP  - 116
EP  - 127
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Beck, Daniel
A1  - Lakemeyer, Gerhard
T1  - Landmark-Based Representations for Navigating Holonomic Soccer Robots / Beck, Daniel ; Ferrein, Alexander ; Lakemeyer, Gerhard
JF  - RoboCup 2008 : robot soccer world cup XII / Luca Iocchi ... (eds.)
Y1  - 2009
SN  - 978-3-642-02921-9
N1  - Lecture Notes in Computer Science ; 5399
SP  - 25
EP  - 36
PB  - Springer
CY  - Heidelberg
ER  - 
TY  - CHAP
A1  - Fellin, Wolfgang
A1  - King, Julian
A1  - Kirsch, Ansgar
A1  - Oberguggenberger, Michael
T1  - Uncertainty modelling and sensitivity analysis of tunnel face stability
T2  - Safety, reliability and risk of structures, infrastructures and engineering systems : proceedings of the tenth International Conference on Structural Safety and Reliability (ICOSSAR 2009), Osaka, Japan, 13-17 September 2009 / ed.: Hitoshi Furuta ...
Y1  - 2009
SN  - 978-0-415-47557-0
SP  - 112
EP  - 114
PB  - CRC Pr.
CY  - Boca Raton, Fla. [u.a.]
ER  - 
TY  - JOUR
A1  - Ewe, Hendrik
A1  - Klein, Peter
A1  - Pieper, Martin
A1  - Füldner, G.
T1  - Heat conductivity in sintered aluminium fibers
JF  - Cellular metals for structural and functional applications : CELLMET 2008 ; proceedings of the International Symposium on Cellular Metals for Structural and Functional Applications held October 8 - 10, 2008 in Dresden, Germany / ed. by Günter Stephani
Y1  - 2009
SP  - 187
EP  - 193
PB  - Fraunhofer IFAM
CY  - Dresden
ER  - 
TY  - CHAP
A1  - Epple, U.
A1  - Brandes, Sinja
A1  - Gligorevic, Snjezana
A1  - Schnell, Michael
T1  - Receiver optimization for L-DACS1
T2  - IEEE/AIAA 28th Digital Avionics Systems Conference : 23-29 Oct. 2009 : Orlando, Fla.
Y1  - 2009
SN  - 978-1-4244-4078-8
SP  - 4B1-1
EP  - 4B1-12
ER  - 
TY  - JOUR
A1  - Enning, Manfred
A1  - Baier, M.
T1  - Energetic and operational use of FlexCargoRail freight wagons in the single wagon load traffic / Baier, M. ; Enning, M.
JF  - Towards zero emission : EVS 24, the 24th  International  Battery, Hybrid and Fuel Cell Electric Vehicle Symposium & Exhibition, Stavanger, Norway, May 13 - 16, 2009 ; symposium proceedings / organised by AVERE ... Robert Stüssi [Hrsg.]
Y1  - 2009
N1  - European Association of Electric Road Vehicles ; EVS ; (24 : ; 2009.05.13-16 : ; Stavanger)
CY  - Stavanger
ER  - 
TY  - JOUR
A1  - Elbers, Gereon
T1  - Identification of marker peptides in hair for discrimination with regard to species and breed / Koerner, Andrea ; Ring, Maike ; Fabry, Marlies ; Elbers, Gereon ; Moeller, Martin
JF  - Proceedings of the Aachen-Dresden International Textile Conference, 3rd, Aachen, Germany, Nov. 26-27, 2009
Y1  - 2009
N1  - Aachen-Dresden International Textile Conference ; (3 : ; 2009.11.26-27 : ; Aachen)
PB  - DWI
CY  - Aachen
ER  - 
TY  - CHAP
A1  - ElBashir, Rasha
A1  - Digel, Ilya
T1  - Effect of nitric oxide gas on hydrogels : [abstract]
N2  - The results support our theory that the NO gas has an influence in increasing the translational diffusion of hydrogels and it accelerates the melting process of the gels.
KW  - Stickstoffmonoxid
KW  - Hydrogel
KW  - nitric oxide gas
KW  - hydrogel
Y1  - 2009
ER  - 
TY  - JOUR
A1  - Eilmann, Britta
A1  - Zweifel, Roman
A1  - Buchmann, Nina
A1  - Fonti, Patrick
A1  - Rigling, Andreas
T1  - Drought-induced adaptation of the xylem in Scots pine and pubescent oak
JF  - Tree Physiology
Y1  - 2009
U6  - https://doi.org/10.1093/treephys/tpp035
SN  - 0829-318X (Print)
SN  - 1758-4469 (Online)
VL  - 29
IS  - 8
SP  - 1011
EP  - 1020
PB  - Heron
CY  - Victoria, BC
ER  - 
TY  - JOUR
A1  - Dikta, Gerhard
A1  - Subramanian, Sundarraman
T1  - Inverse censoring weighted median regression / Sundarraman Subramanian and Gerhard Dikta
JF  - Statistical Methodology. 6 (2009), H. 6
Y1  - 2009
SN  - 1572-3127
SP  - 594
EP  - 603
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Digel, Ilya
A1  - Dachwald, Bernd
A1  - Artmann, Gerhard
A1  - Linder, Peter
A1  - Funke, O.
T1  - A concept of a probe for particle analysis and life detection in icy environments
N2  - A melting probe equipped with autofluorescence-based detection system combined with a light scattering unit, and, optionally, with a microarray chip would be ideally suited to probe icy environments like Europa’s ice layer as well as the polar ice layers of Earth and Mars for recent and extinct live.
KW  - Sonde
KW  - Eisschicht
KW  - Autofluoreszenzverfahren
KW  - Lichtstreuungsbasierte Instrumente
KW  - autofluorescence-based detection system
KW  - light scattering analysis
Y1  - 2009
ER  - 
TY  - JOUR
A1  - Digel, Ilya
A1  - Dachwald, Bernd
A1  - Artmann, Gerhard
A1  - Linder, Peter
A1  - Funke, O.
T1  - A concept of a probe for particle analysis and life detection in icy environments
Y1  - 2009
N1  - International workshop “Europa lander: science goals and experiments”, Space Research Institute (IKI), Moscow, Russia
9-13 February 2009
SP  - 1
EP  - 24
ER  - 
TY  - JOUR
A1  - Demirci, Taylan
A1  - Kurulgan Demirci, Eylem
A1  - Trzewik, Jürgen
A1  - Linder, Peter
A1  - Digel, Ilya
A1  - Artmann, Gerhard
A1  - Sakizli, Meral
A1  - Temiz Artmann, Aysegül
T1  - Gene expression profile analysis of 3T3/NIH fibroblasts after one hour mechanical stress
JF  - IUBMB Life. 61 (2009), H. 3
Y1  - 2009
SN  - 1521-6543
N1  - Abstracts: Turkish Society of Molecular Medicine, Third International Congress of Molecular Medicine, May 5-8, 2009, Istanbul, Turkey
SP  - 311
EP  - 312
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Dankelmann, Peter
A1  - Hellwig, Angelika
A1  - Volkmann, Lutz
T1  - Inverse degree and edge-connectivity
JF  - Discrete mathematics
Y1  - 2009
SN  - 1872-681X (E-Journal); 0012-365X (Print)
VL  - Vol. 309
IS  - Iss. 9
SP  - 2943
EP  - 2947
PB  - Elsevier
CY  - Amsterdam
ER  -