TY  - JOUR
A1  - Förster, Arnold
A1  - Wensorra, J.
A1  - Indlekofer, K. M.
A1  - Lüth, H.
T1  - Resonant tunneling in nanocolumns improved by quantum collimation. Wensorra, J.; Indlekofer, K. M.; Förster, A.; Lüth, H.
JF  - Nano Letters. 5 (2005)
Y1  - 2005
SN  - 0587-4246
SP  - 2470
EP  - 2475
ER  - 
TY  - JOUR
A1  - Helsper, Christoph
A1  - Fißan, H. J.
T1  - Response Characteristic of a Polytec HC-15 Optical Particle Counter
JF  - Aerosols in science, medicine and technology : Physical and chemical properties of aerosols : Association for Aerosol Research: annual conference. 1980 : Gesellschaft für Aerosolforschung: annual conference. 1980 : Aerosols in science, medicine and technology : Physical and chemical properties of aerosols : Associa-tion for Aerosol Research: annual conference. 1980 : Gesellschaft für Aerosolforschung: annual conference. 1980 : Schmallenberg, 22.10.80 - 24.10.80
Y1  - 1981
N1  - Journal of aerosol science. Volume 0012 ; no 003
SP  - 287
EP  - 292
PB  - Pergamon Pr.
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Helsper, Christoph
A1  - Bartz, H.
A1  - Fißan, H. J.
A1  - Kousaka, Y. (u.a.)
T1  - Response Characteristics for Four Condensation Nucleus Counters to Particles in the 3 to 50 nm Diameter Range / Bartz, H. ; Fißan, H. J. ; Helsper, C.; Kousaka, Y. ; Okuyama, K. ; Keady, R. Fruin, S. ; McMurry, P. H.; Pui, D. Y. H. ; Stolzenburg, M. R.
JF  - Journal of Aerosol Science. 16 (1985), H. 5
Y1  - 1985
SN  - 0021-8502
SP  - 443
EP  - 456
ER  - 
TY  - JOUR
A1  - Hoffschmidt, Bernhard
A1  - Krüger, D.
A1  - Hennecke, K.
T1  - Results from parabolic trough systems for process heat at the DLR Cologne / D. Krüger ; B. Hoffschmidt ; K. Hennecke ...
JF  - Solar thermal 2000 : proceedings of the 10th SolarPACES International Symposium on Solar Thermal Concentrating Technologies, Sydney, Australia, 8 - 10 March 2000 ; part of the
Y1  - 2000
N1  - International Symposium on Solar Thermal Concentrating Technologies <10, 2000, Sydney>
SP  - 113
EP  - 120
CY  - Sydney
ER  - 
TY  - JOUR
A1  - Sattler, Johannes Christoph
A1  - Röger, Marc
A1  - Schwarzbözl, Peter
A1  - Buck, Reiner
A1  - Macke, Ansgar
A1  - Raeder, Christian
A1  - Göttsche, Joachim
T1  - Review of heliostat calibration and tracking control methods
JF  - Solar Energy
N2  - Large scale central receiver systems typically deploy between thousands to more than a hundred thousand heliostats. During solar operation, each heliostat is aligned individually in such a way that the overall surface normal bisects the angle between the sun’s position and the aim point coordinate on the receiver. Due to various tracking error sources, achieving accurate alignment ≤1 mrad for all the heliostats with respect to the aim points on the receiver without a calibration system can be regarded as unrealistic. Therefore, a calibration system is necessary not only to improve the aiming accuracy for achieving desired flux distributions but also to reduce or eliminate spillage. An overview of current larger-scale central receiver systems (CRS), tracking error sources and the basic requirements of an ideal calibration system is presented. Leading up to the main topic, a description of general and specific terms on the topics heliostat calibration and tracking control clarifies the terminology used in this work. Various figures illustrate the signal flows along various typical components as well as the corresponding monitoring or measuring devices that indicate or measure along the signal (or effect) chain. The numerous calibration systems are described in detail and classified in groups. Two tables allow the juxtaposition of the calibration methods for a better comparison. In an assessment, the advantages and disadvantages of individual calibration methods are presented.
Y1  - 2020
U6  - https://doi.org/10.1016/j.solener.2020.06.030
VL  - 207
SP  - 110
EP  - 132
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - CHAP
A1  - Borchert, Jörg
A1  - Lintzel, P.
ED  - Zenke, Ines
T1  - Risiken des Handels
T2  - Energiehandel in Europa
Y1  - 2012
SN  - 978-3-9813142-9-8
SP  - 303
EP  - 312
PB  - Beck
CY  - München
ET  - 3. Aufl.
ER  - 
TY  - CHAP
A1  - Lintzel, P.
A1  - Borchert, Jörg
ED  - Zenke, Ines
T1  - Risiken des Handels
T2  - Energiehandel in Europa
Y1  - 2009
SN  - 978-3-406-58373-5
SP  - 239
EP  - 247
PB  - Beck
CY  - München
ET  - 2. Aufl.
ER  - 
TY  - CHAP
A1  - Borchert, Jörg
A1  - Schemm, R.
A1  - Lintzel, P.
ED  - Zenke, Ines
T1  - Risiken des Handelsgeschäftes
T2  - Energiehandel in Europa
Y1  - 2005
SN  - 3-406-52443-5
SP  - 218
EP  - 235
PB  - Beck
CY  - München
ER  - 
TY  - JOUR
A1  - Thielemann, Frank
A1  - Lüdtke, C.
T1  - Risikomanagement - Aufbau eines Frühwarnsystems
JF  - Wirtschafts-Nachrichten. 45 (2000), H. 12
Y1  - 2000
SN  - 1436-5588
SP  - 14
EP  - ff
ER  - 
TY  - CHAP
A1  - Borchert, Jörg
ED  - Romeike, Frank
T1  - Risikomanagement in der Energiewirtschaft : Eine Risikoanalyse der elektrizitätswirtschaftlichen Wertschöpfungskette
T2  - Rechtliche Grundlagen des Risikomanagements : Haftungs- und Strafvermeidung für Corporate Complience
Y1  - 2008
SN  - 978-350-310647-9
SP  - 231
EP  - 270
PB  - Erich Schmidt
CY  - Berlin
ER  -