TY  - CHAP
A1  - Helmig, Ilka
ED  - Klanten, Robert
T1  - Tristan und Isolde, Samson und Dalila, Capriccio : 3D illustration for posters of Cologne Opera
T2  - Papercraft [1] : design and art with paper
KW  - Papierkunst
Y1  - 2009
SN  - 978-3-89955-251-5
SP  - 202
PB  - Gestalten Verlag
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Jahnke, Siegfried
A1  - Menzel, Marion I.
A1  - Dusschoten, Dagmar van
A1  - Roeb, Gerhard W.
A1  - Bühler, Jonas
A1  - Minwuyelet, Senay
A1  - Blümler, Peter
A1  - Temperton, Vicky M.
A1  - Hombach, Thomas
A1  - Streun, Matthias
A1  - Beer, Simone
A1  - Khodaverdi, Maryam
A1  - Ziemons, Karl
A1  - Coenen, Heinz H.
A1  - Schurr, Ulrich
T1  - Combined MRI–PET dissects dynamic changes in plant structures and functions
JF  - The Plant Journal
N2  - Unravelling the factors determining the allocation of carbon to various plant organs is one of the great challenges of modern plant biology. Studying allocation under close to natural conditions requires non-invasive methods, which are now becoming available for measuring plants on a par with those developed for humans. By combining magnetic resonance imaging (MRI) and positron emission tomography (PET), we investigated three contrasting root/shoot systems growing in sand or soil, with respect to their structures, transport routes and the translocation dynamics of recently fixed photoassimilates labelled with the short-lived radioactive carbon isotope 11C. Storage organs of sugar beet (Beta vulgaris) and radish plants (Raphanus sativus) were assessed using MRI, providing images of the internal structures of the organs with high spatial resolution, and while species-specific transport sectoralities, properties of assimilate allocation and unloading characteristics were measured using PET. Growth and carbon allocation within complex root systems were monitored in maize plants (Zea mays), and the results may be used to identify factors affecting root growth in natural substrates or in competition with roots of other plants. MRI–PET co-registration opens the door for non-invasive analysis of plant structures and transport processes that may change in response to genomic, developmental or environmental challenges. It is our aim to make the methods applicable for quantitative analyses of plant traits in phenotyping as well as in understanding the dynamics of key processes that are essential to plant performance.
Y1  - 2009
SN  - 1365-313X
VL  - 59
IS  - 4
SP  - 634
EP  - 644
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Wedrowski, M.
A1  - Bruyndonckx, P.
A1  - Tavernier, S.
A1  - Zhi, L.
A1  - Dang, J.
A1  - Mendes, P. R.
A1  - Perez, J. M.
A1  - Ziemons, Karl
T1  - Robustness of neural networks algorithm for gamma detection in monolithic block detector, positron emission tomography
JF  - 2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC)
N2  - The monolithic scintillator block approach for gamma detection in the Positron Emission Tomography (PET) avoids estimating Depth of Interaction (DOI), reduces dead zones in detector and diminishes costs of detector production. Neural Networks (NN) are very efficient to determine the entrance point of a gamma incident on a scintillator block. This paper presents results on the robustness of the spatial resolution as a function of the random fraction in the data, temperature and HV fluctuations. This is important when implementing the method in a real scanner. Measurements were done with two Hamamatsu S8550 APD arrays, glued on a 20 × 20 × 10 mm3 monolithic LSO crystal block.
Y1  - 2009
SN  - 1082-3654
SP  - 2625
EP  - 2628
ER  - 
TY  - JOUR
A1  - Streun, M.
A1  - Larue, H.
A1  - Parl, C.
A1  - Ziemons, Karl
T1  - A compact PET detector readout using charge-to-time conversion
JF  - 2009 IEEE Nuclear Science Symposium Conference Record (NSS/MIC)
N2  - The readout of gamma detectors is considerably simplified when the event intensity is encoded as a pulse width (Pulse Width Modulation, PWM). Time-to-Digital-Converters (TDC) replace the conventional ADCs and multiple TDCs can be realized easily in one PLD chip (Programmable Logic Device). The output of a PWM stage is only one digital signal per channel which is well suited for transport so that further processing can be performed apart from the detector. This is particularly interesting for large systems with high channel density (e.g. high resolution scanners). In this work we present a circuit with a linear transfer function that requires a minimum of components by performing the PWM already in the preamp stage. This allows a very compact and also cost-efficient implementation of the front-end electronics.
Y1  - 2009
SN  - 1082-3654
SP  - 1868
EP  - 1870
PB  - IEEE
CY  - New York
ER  - 
TY  - CHAP
A1  - Boonzaaijer, Karel
A1  - Helmig, Ilka
T1  - 2D Room : cardboard installation
T2  - Papercraft [1] : design and art with paper
KW  - Papierkunst
Y1  - 2009
SN  - 978-3-89955-251-5
SP  - 206
PB  - Gestalten Verlag
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Helmig, Ilka
A1  - Boonzaaijer, Karel
T1  - Growing 48 hours : design experiment in an aircraft hangar ...
T2  - Papercraft [1] : design and art with paper
KW  - Papierkunst
KW  - Aktionskunst
KW  - Studienarbeit
Y1  - 2009
SN  - 978-3-89955-251-5
SP  - 224
PB  - Gestalten Verlag
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Reimer, Lars
A1  - Wellmer, Georg
A1  - Braun, Carsten
A1  - Ballmann, Josef
T1  - Computational methods for aero-structural analysis and optimisation of aircrafts based on reduced-order structural models
T2  - MEGADESIGN and MegaOpt - German initiatives for aerodynamic simulation and optimization in aircraft design. Results of the closing symposium of the MEGADESIGN and MegaOpt projects, Braunschweig, Germany, 23 - 24 May, 2007 / Norbert Kroll ... (Eds.) Notes on numerical fluid mechanics and multidisciplinary design. Vol. 107
N2  - In this part of the MEGADESIGN project, aeroelastic effects are introduced into the aerodynamic analysis of aircrafts by coupling DLR’s flow solvers TAU and FLOWer to a Timoshenko-beam solver. The emerging aeroelastic solvers and a method for the automatic identification of Timoshenko-beam models for wing-box structures were integrated into a simulation environment enabling the combined optimisation of aerodynamic wing shape and structure.
Y1  - 2009
SN  - 978-3-642-04092-4
SP  - 135
EP  - 150
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Müller, Karsten
A1  - Fischer, B.
T1  - Objective condition assessment of sewer systems
T2  - Strategic asset management of water supply and wastewater infrastructures : invited papers from the 2nd IWA Leading Edge Conference on Strategic Asset Management (LESAM), Lisbon, October [17 - 19] 2007 / ed. by Helene Alegre and Maria do Céu Almeida
Y1  - 2009
SN  - 9781843391869
SP  - 521
EP  - 534
PB  - IWA Publ.
CY  - London
ER  - 
TY  - CHAP
A1  - Ahlbrink, N.
A1  - Alexopoulos, Spiros
A1  - Andersson, J.
A1  - Belhomme, B.
A1  - Teixeira Boura, Cristiano José
A1  - Gall, J.
A1  - Hirsch, T.
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  - Gall, J.
A1  - Abel, D.
A1  - Ahlbrink, N.
A1  - Andersson, J.
A1  - Diehl, M.
A1  - Pitz-Paal, R.
A1  - Schmitz, M.
A1  - Teixeira Boura, Cristiano José
T1  - Optimized control of hot-gas cycle for solar thermal power plants
T2  - Proceedings of the 7th International Modelica Conference : Como, Italy, 20-22 September 2009 / Francesco Casella, ed.
Y1  - 2009
SN  - 978-91-7393-513-5
SP  - 490
EP  - 495
PB  - The Modelica Association
ER  - 
TY  - CHAP
A1  - Koll, Gerrit
A1  - Schwarzbözl, Peter
A1  - Hennecke, Klaus
A1  - Hartz, Thomas
A1  - Schmitz, Mark
A1  - Hoffschmidt, Bernhard
T1  - The Solar Tower Jülich - a research and demonstration plant for central receiver systems
T2  - SolarPACES 2009 : electricity, fuels and clean water powered by the sun ; 15 - 18 September 2009, Berlin, Germany ; the 15th SolarPACES conference ; proceedings
Y1  - 2009
SN  - 9783000287558
PB  - Deutsches Zentrum f. Luft- u. Raumfahrt
CY  - Stuttgart
ER  - 
TY  - CHAP
A1  - Alexopoulos, Spiros
A1  - Hoffschmidt, Bernhard
A1  - Rau, Christoph
A1  - Schwarzbözl, Peter
T1  - Simulation results for a hybridization concept of a small solar tower power plant
T2  - SolarPACES 2009 : electricity, fuels and clean water powered by the sun ; 15 - 18 September 2009, Berlin, Germany ; the 15th SolarPACES conference ; proceedings
Y1  - 2009
SN  - 9783000287558
PB  - Deutsches Zentrum f. Luft- u. Raumfahrt
CY  - Stuttgart
ER  - 
TY  - CHAP
A1  - Hirsch, Tobias
A1  - Abel, Dirk
A1  - Bohn, Dieter
A1  - Diehl, Moritz
A1  - Hoffschmidt, Bernhard
A1  - Pitz-Paal, Robert
T1  - The Virtual Institute for Central Receiver Power Plants - vICERP
T2  - SolarPACES 2009 : electricity, fuels and clean water powered by the sun ; 15 - 18 September 2009, Berlin, Germany ; the 15th SolarPACES conference ; proceedings
Y1  - 2009
SN  - 9783000287558
PB  - Deutsches Zentrum f. Luft- u. Raumfahrt
CY  - Stuttgart
ER  - 
TY  - CHAP
A1  - Göttsche, Joachim
A1  - Schwarzer, Klemens
A1  - Röther, Sascha
A1  - Jellinghaus, Sabine
A1  - Helten, G.
A1  - Wittmann, R.
T1  - Efficient daylighting, heating and shading with rooflight heliostats
T2  - Renewables in a changing climate : from Nano to Urban Scale : CISBAT 2009 : 2-3 September 2009, EPFL, Lausanne, Switzerland : proceedings
Y1  - 2009
SP  - 243
EP  - 246
PB  - Ecole Polytechnique Fédérale de Lausanne
CY  - Lausanne
ER  - 
TY  - CHAP
A1  - Warerkar, Shashikant
A1  - Schmitz, Stefan
A1  - Göttsche, Joachim
A1  - Hoffschmidt, Bernhard
A1  - Reißel, Martin
A1  - Tamme, Rainer
T1  - Air-sand heat exchanger for high-temperature storage
T2  - Proceedings of the ASME 3rd International Conference on Energy Sustainability : July 19 - 23, 2009, San Francisco, California, USA. Vol. 2
Y1  - 2009
SN  - 978-0-7918-4890-6
SP  - 655
EP  - 661
PB  - ASME
CY  - New York, NY
ER  - 
TY  - CHAP
A1  - Alexopoulos, Spiros
A1  - Breitbach, Gerd
A1  - Hoffschmidt, Bernhard
T1  - Optimization of the channel form geometry of porous ReSiC ceramic membrane modules
T2  - Proceedings / International Conference & Exhibition for Filtration and Separation Technology, FILTECH 2009 : October 13 - 15, 2009, Wiesbaden, Germany. Vol. 2
Y1  - 2009
SN  - 978-3-941655-36-2
SP  - 686
EP  - 693
PB  - Filtech Exhibitions Germany
CY  - Meerbusch
ER  - 
TY  - CHAP
A1  - Krüger, Dirk
A1  - Anthrakidis, Anette
A1  - Fischer, Stephan
A1  - Lokurlu, Ahmet
A1  - Walder, Markus
A1  - Croy, Reiner
A1  - Quaschning, Volker
T1  - Experiences with solar steam supply for an industrial steam network in the P3 Project
T2  - SolarPACES 2009 : electricity, fuels and clean water powered by the sun ; 15 - 18 September 2009, Berlin, Germany ; the 15th SolarPACES conference ; proceedings
Y1  - 2009
SN  - 9783000287558
PB  - Deutsches Zentrum f. Luft- u. Raumfahrt
CY  - Stuttgart
ER  - 
TY  - CHAP
A1  - Chudoba, Rostislav
A1  - Konrad, Martin
A1  - Schleser, Markus
A1  - Meskouris, Konstantin
A1  - Reisgen, Uwe
ED  - Curbach, Manfred
T1  - Parametric study of tensile response of TRC specimens reinforced with epoxy-penetrated multi-filament yarns
T2  - Textilbeton - Theorie und Praxis : Tagungsband zum 4. Kolloquium zu textilbewehrten Tragwerken (CTRS4) und zur 1. Anwendertagung, Dresden, 3.6.2009 - 5.6.2009
Y1  - 2009
SN  - 978-3-86780-122-5
SP  - 87
EP  - 98
PB  - Techn. Univ.
CY  - Dresden
ER  - 
TY  - CHAP
A1  - Reisgen, Uwe
A1  - Schoene, Jens
A1  - Schleser, Markus
A1  - Gries, Thomas
A1  - Glowania, Michael
T1  - Impregnated textile reinforcements for concrete applications
T2  - European Coatings Congress : Nürnberg, Germany, 30.3. - 1.4. 2009
Y1  - 2009
ER  - 
TY  - JOUR
A1  - Schnitzler, Thomas
T1  - Cultivation of hybridoma cell line CF-10H5 (DSMZ ACC477)
JF  - Application notes / Sartorius stedim biotech
Y1  - 2009
SP  - 1
EP  - 4
ER  -