TY  - JOUR
A1  - Dachwald, Bernd
A1  - Ulamec, Stephan
A1  - Postberg, Frank
A1  - Sohl, Frank
A1  - Vera, Jean-Pierre de
A1  - Christoph, Waldmann
A1  - Lorenz, Ralph D.
A1  - Hellard, Hugo
A1  - Biele, Jens
A1  - Rettberg, Petra
T1  - Key technologies and instrumentation for subsurface exploration of ocean worlds
JF  - Space Science Reviews
N2  - In this chapter, the key technologies and the instrumentation required for the subsurface exploration of ocean worlds are discussed. The focus is laid on Jupiter’s moon Europa and Saturn’s moon Enceladus because they have the highest potential for such missions in the near future. The exploration of their oceans requires landing on the surface, penetrating the thick ice shell with an ice-penetrating probe, and probably diving with an underwater vehicle through dozens of kilometers of water to the ocean floor, to have the chance to find life, if it exists. Technologically, such missions are extremely challenging. The required key technologies include power generation, communications, pressure resistance, radiation hardness, corrosion protection, navigation, miniaturization, autonomy, and sterilization and cleaning. Simpler mission concepts involve impactors and penetrators or – in the case of Enceladus – plume-fly-through missions.
Y1  - 2020
U6  - https://doi.org/10.1007/s11214-020-00707-5
SN  - 1572-9672
N1  - Corresponding author: Bernd Dachwald
VL  - 216
IS  - Art. 83
PB  - Springer
CY  - Dordrecht
ER  - 
TY  - CHAP
A1  - Kern, Alexander
A1  - Krichel, Frank
T1  - Considerations about the lightning protection system of mains independent renewable energy hybrid-systems - practical experiences
N2  - In the paper a lightning protection design concept for renewable energy hybrid-systems without power mains connection is described. Based on a risk analysis protection measures against direct strikes and overvoltages are shown in an overview. The design concept is realized exemplarily for the hybrid-system VATALI on the Greek island Crete. VATALI, not lightning protected at that time, was a victim of a lightning strike in the year 2000 causing destructions and damages of some mechanical and electrical components with costs of approx. 60.000 €. The hardware costs for the protection measures were about 15.000 €: about 50% of the costs are due to protection measures against direct strikes, 50% are due to overvoltage protection.
KW  - Blitzschutz
KW  - Erneuerbare Energien
KW  - Hybridsystem
KW  - Photovoltaikanlage
KW  - Windenergieanlage
KW  - Lightning protection
KW  - renewable energy
KW  - hybrid system
KW  - photovoltaic system
KW  - wind turbine
Y1  - 2002
ER  - 
TY  - JOUR
A1  - Kern, Alexander
A1  - Krichel, Frank
T1  - Considerations about the lightning protection system of mains independent renewable energy hybrid-systems - practical experiences
JF  - Journal of electrostatics. 60 (2004), H. 2-4
Y1  - 2004
SN  - 0304-3886
N1  - ISSN der E-Ausg.: 0304-3886
SP  - 257
EP  - 263
ER  - 
TY  - JOUR
A1  - Kern, Alexander
A1  - Krichel, Frank
A1  - Neskakis, Apostolos
A1  - Müller, Klaus-Peter (u.a.)
T1  - Lightning protection design of a renewable energy hybrid-system without power mains connection
Y1  - 2001
N1  - International Conference on Renewable Energies for Islands <2001, Crete>
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Schmidt, Frank-Michael
T1  - Practical experiences with making and finishing of coloured models using 3D printing
Y1  - 2002
N1  - International Conference on Rapid Prototyping and Manufacturing <2, 2002, Beijing>
ER  - 
TY  - CHAP
A1  - Kern, Alexander
A1  - Krichel, Frank
A1  - Müller, Klaus-Peter
T1  - Lightning protection design of a renewable energy hybrid-system without power mains connection
N2  - In the year 2000 a direct lightning strike to the hybridsystem without power mains connection VATALI on the Greek island Crete results in the destruction and damage of some mechanical and electrical components. The hybrid-system VATALI was not lightning protected at that time. The hardware damage costs are approx. 60,000 €. The exposed site of the hybrid-system on top of a mountain was and still is the reason for a high risk of lightning strikes. Also in the future further lightning strikes have to be taken into consideration. In the paper a fundamental lightning protection design concept for renewable energy hybrid-systems without power mains connection and protection measures against direct strikes and overvoltages are shown in detail. The design concept was realized exemplarily for the hybrid-system VATALI. The hardware costs for the protection measures were about 15,000 €. About 50% of the costs are due to protection measures against direct strikes, 50% are due to overvoltage protection. Future extensions, new installations, or modifications have to be included into the lightning protection design concept of the hybrid-system.
KW  - Blitzschutz
KW  - Erneuerbare Energien
KW  - Hybridsystem
KW  - Lightning protection
KW  - Renewable energy
KW  - hybrid-system
Y1  - 2001
ER  - 
TY  - JOUR
A1  - Späte, Frank
A1  - Faber, Christian
A1  - Schwarzer, Klemens
A1  - Hartz, Thomas
T1  - Comparison of solar hot water systems in solar settlements - decentralized or centralized systems?
JF  - Proceedings / organised by: ISES Europe ... [Ed.: Deutsche Gesellschaft für Sonnenenergie e.V. - DGS, Munich ; PSE GmbH - Forschung Entwicklung Marketing, Freiburg]. - Vol. 1
Y1  - 2004
SN  - 3-9809656-1-9
N1  - EuroSun <5, 2004, Freiburg, Breisgau> ; Internationales Sonnenforum <14, 2004, Freiburg, Breisgau> ; Deutsche Gesellschaft für Sonnenenergie
SP  - 1-666-1-671
PB  - PSE
CY  - Freiburg [Breisgau]
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Rey, J.
A1  - Mathieu, B.
A1  - Lozano, D.
T1  - Media aware overlay routing in Ambient Networks / Rey, J. ; Mathieu, B. ; Lozano, D. ; Herborn, S. ; Ahmed, K. ; Schmid, S. ; Goebbels, S. ; Hartung, F. ; Kampmann, M.
JF  - 16th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005.   Date:11-14 Sept. 2005 ; Vol. 2
Y1  - 2004
SP  - 952
EP  - 957
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Kumwilaisak, W.
T1  - An intraframe error concealment: nonlinear pattern alignment and directional interpolation / Kumwilaisak, W. ; Hartung, F.
JF  - Conference on Image Processing, 2004. ICIP '04. 2004 International / Vol. 2 .
Y1  - 2004
N1  - http://dx.doi.org/10.1109/ICIP.2004.1419426
SP  - 825
EP  - 828
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Noh, Jeonghun
A1  - Baccichet, Pierpaolo
A1  - Mavlankar, Aditya
T1  - Standford Peer-to-Peer Mulicast (SPPM) - Overview and recent Extensions / Noh, Jeonghun ; Baccichet, Pierpaolo ; Hartung, Frank ; Mavlankar, Aditya ; Girod, Bernd
Y1  - 2009
SN  - 978-1-4244-4593-6
N1  - Picture Coding Symposium, 2009. PCS 2009 ; auch unter IEEE: http://dx.doi.org/10.1109/PCS.2009.5167392
SP  - 1
EP  - 4
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Horn, Uwe
A1  - Huschke, Jörg
A1  - Kampmann, Markus
T1  - MBMS—IP Multicast/Broadcast in 3G Networks / Hartung, Frank ; Horn, Uwe ; Huschke, Jörg ; Kampmann, Markus ; Lohmar, Thorsten
JF  - International Journal of Digital Multimedia Broadcasting. 2009 (2009)
Y1  - 2009
SN  - 1687-7586
N1  - Article ID 597848
SP  - 1
EP  - 25
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Kampmann, Markus
A1  - Horn, Uwe
A1  - Kritzner, Jan
T1  - Mobile Television / Hartung, Frank ; Kampmann, Markus ; Horn, Uwe ; Kritzner, Jan
JF  - Encyclopedia of mobile computing and commerce / David Taniar ; Bd. 2 : Mobile ICT - Z
Y1  - 2007
SN  - 978-1-59904-002-8
SP  - 611
EP  - 615
PB  - Information Science Reference
CY  - Hershey
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Horn, Uwe
A1  - Huschke, Jörg
A1  - Kampmann, Markus
T1  - Delivery of Broadcast Services in 3G Networks / Hartung, Frank ; Horn, Uwe ; Jörg Huschke ; Kampmann, Markus ; Lohmar, Thorsten ; Lundevall, Magnus
JF  - IEEE Transactions on Broastcasting. 53 (2007), H. 1 Part: 2
Y1  - 2007
SN  - 0018-9316
N1  - campusweit: http://dx.doi.org/10.1109/TBC.2007.891711
SP  - 188
EP  - 199
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Horn, Uwe
A1  - Huschke, Jörg
A1  - Kampmann, Markus
T1  - Mobile TV Services in 3G Networks / Hartung, Frank ; Horn, Uwe ; Huschke, Jörg ; Kampmann, Markus ; Lohmar, Thorsten
JF  - KIVS 2007 : Kommunikation in verteilten Systemen : 15. ITG-GI-Fachtagung vom 26. Februar bis 2. März 2007 in Bern, Schweiz ; Industriebeiträge, Kurzbeiträge und Workshops / T. Braun ... (Hrsg.)
Y1  - 2007
SN  - 978-3-8007-2980-7
N1  - Communication in Distributed Systems (KiVS), 2007 ITG-GI Conference
SP  - 15
EP  - 18
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Kampmann, Markus
T1  - Media Delivery Based on Service Aware Transport Overlay Networks  / Kampmann, Markus ; Hartung, Frank
JF  - KIVS 2007 : Kommunikation in verteilten Systemen : 15. ITG-GI-Fachtagung vom 26. Februar bis 2. März 2007 in Bern, Schweiz ; Industriebeiträge, Kurzbeiträge und Workshops / T. Braun ... (Hrsg.)
Y1  - 2007
SN  - 978-3-8007-2980-7
N1  - Communication in Distributed Systems (KiVS), 2007 ITG-GI Conference
SP  - 9
EP  - 10
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Kampmann, M.
A1  - Horn, U.
A1  - Huschke, J.
T1  - Delivery of Mobile TV services in 3G cellular networks / Kampmann, M. ; Hartung, F.  ; Horn, U. ; Huschke, J. ; Lohmar, T.
JF  - Elektronische Medien : Vorträge des 12. Dortmunder Fernsehseminars vom 20. bis 21. März 2007 in Dortmund / Veranst.: ITG-FKTG-Fachbereich 3 ... Wiss. Tagungsleitung: R. Kays
Y1  - 2007
SN  - 978-3-8007-3019-3
N1  - ITG-Fachbericht ; 199
SP  - 49
EP  - 52
PB  - VDE-Verl.
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Dondeti, L.
A1  - Castleford, F.
T1  - Multimedia Internet KEYing (MIKEY) General Extension Payload for Open Mobile Alliance BCAST LTKM/STKM Transport / Dondeti, L. ; Castleford, D. ; Hartung, F.
Y1  - 2007
SP  - 1
EP  - 7
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Schieder, Andreas
A1  - Kampmann, Markus
A1  - Vorwerk, Marc
T1  - Network Supported Media Delivery in Ambient Networks (Netzwerkunterstützte Medienverteilung) / Schieder, Andreas ; Kampmann, Markus ; Hartung, Frank ; Vorwerk, Marc ; Rembarz, René
JF  - it - Information Technology . 48 (2006), H. 5
Y1  - 2006
SN  - 1611-2776
N1  - in der Bereichsbibliothek Eupener Str. unter der Signatur 23 Z 376 vorhanden
SP  - 264
EP  - 273
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Baldo, N.
A1  - Horn, U.
A1  - Kampmann, M.
T1  - RTCP feedback based transmission rate control for 3G wireless multimedia streaming / Baldo, N. ; Horn, U. ; Kampmann, M. ; Hartung, F. ;
JF  - 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004.   Date:5-8 Sept. 2004 ; Vol. 3
Y1  - 2004
N1  - http://dx.doi.org/10.1109/PIMRC.2004.1368313
SP  - 1817
EP  - 1821
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Girod, Bernd
A1  - Horn, Uwe
T1  - Subband Image Coding / Girod, Bernd ; Hartung, Frank ; Horn, Uwe
JF  - Subband and Wavelet Transforms: Design and Applications / ed. by Ali N. Akansu
Y1  - 1995
SN  - 0792396456
SP  - 213
EP  - 250
PB  - Kluwer
CY  - Boston
ER  - 
TY  - JOUR
A1  - Hartung, Frank
T1  - Mobile DRM Introduction: The Need for Mobile DRM
JF  - Digital Rights Management : Technological, Economic, Legal and Political Aspects / Becker, Eberhard [u.a.]
Y1  - 2003
N1  - Lecture Notes in Computer Science ; 2770
SP  - 138
EP  - 149
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Girod, Bernd
T1  - Copyright protection in video delivery networks by watermarking of pre-compressed video / Hartung, Frank ; Girod, Bernd
JF  - Multimedia Applications, Services and Techniques - EMAST ´97 : Second European Conference Milan, Italy, May 21-23, 1997 Proceedings / Fdida, Serge ; Morganti, Michele
Y1  - 1997
N1  - Lecture Notes in Computer Science ; 1242
SP  - 423
EP  - 436
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Ramme, F.
T1  - Digital rights management and watermarking of multimedia content for m-commerce applications / Hartung, F. ; Ramme, F.
JF  - IEEE Communications Magazine. 38 (2000), H. 11
Y1  - 2000
SN  - 0163-6804
N1  - ISS 2000
SP  - 78
EP  - 84
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Girod, Bernd
T1  - Statistical optimization of switched two-level quantizers with application to DPCM encoding of color video / Hartung, Frank ; Girod, Bernd
JF  - IEEE International Conference on Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996
Y1  - 1996
SN  - 0-7803-3192-3
SP  - 1974
EP  - 1977
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Niebert, Norbert
A1  - Schieder, Andreas
A1  - Rembarz, René
T1  - Advances in network-supported media delivery in next-generation mobile systems / Hartung, Frank  ; Niebert, Norbert ; Schieder, Andreas ; Rembarz, René ; Schmid, Stefan ; Eggert, Lars
JF  - IEEE Communications Magazine. 44 (2006), H. 8
Y1  - 2006
SN  - 0163-6804
SP  - 82
EP  - 89
ER  - 
TY  - JOUR
A1  - Hamm, Laurits
A1  - Hartung, Frank
T1  - High Quality Visual Communication based on IMS
JF  - Mobilkommunikation : Technologien und Anwendungen ; Vorträge der 16. ITG-Fachtagung vom 18. bis 19. Mai 2011 in Osnabrück / Veranst.: Informationstechnische Gesellschaft im VDE (ITG) ... Tagungsleitung: Ralf Tönjes. Programmkomitee/Hrsg.: Peter Roer
Y1  - 2011
SN  - 978-3-8007-3352-1
N1  - ITG-Fachbericht ; 230 ; Fachtagung Mobilkommunikation <16, 2011, Osnabrück>
SP  - 80
EP  - 85
PB  - VDE-Verl.
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Kesici, Sinan
A1  - Catrein, Daniel
T1  - DRM protected Dynamic Adaptive HTTP Streaming
JF  - Proceedings of the 2011 ACM Multimedia Systems Conference [Elektronische Ressource] : February 23 - 25, 2011, San Jose, CA, USA / sponsored by: ACM SIGMM
Y1  - 2011
SN  - 9781450305181
N1  - ACM Multimedia Systems Conference ; (2 : ; 2011.02.23-25 : ; San Jose, Calif.)
SP  - 277
EP  - 282
PB  - ACM
CY  - New York, NY
ER  - 
TY  - CHAP
A1  - Späte, Frank
A1  - Hafner, B.
A1  - Schwarzer, Klemens
T1  - A system for solar process heat for decentralized applications in developing countries
T2  - ISES 1999 Solar World Congress, Jerusalem, Israel, July 4-9, 1999 : conference proceedings / ed. Gershon Grossman. Vol. 3
Y1  - 2000
SN  - 0-080-043895-4
SP  - 236
EP  - 291
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Thielemann, Frank
A1  - Bock, Jürgen
T1  - Organization and management of German-Russian joint ventures. Bock, Jürgen; Thielemann, Frank
JF  - International journal of technology management. 9 (1994), H. 8
Y1  - 1994
SN  - 0267-5730
SP  - 864
EP  - 879
ER  - 
TY  - BOOK
A1  - Thielemann, Frank
A1  - Staudt, Erich
A1  - Kriegesmann, Bernd
T1  - Joint-ventures. Staudt, Erich; Kriegesmann, Bernd; Thielemann, Frank
Y1  - 1994
N1  - Berichte aus der angewandten Innovationsforschung ; 133
PB  - Inst. für Angewandte Innovationsforschung e.V.
CY  - Bochum
ER  - 
TY  - JOUR
A1  - Gebhardt, Andreas
A1  - Schmidt, Frank-Michael
A1  - Hötter, Jan-Steffen
A1  - Sokalla, Wolfgang
A1  - Sokalla, Patrick
T1  - Additive Manufacturing by selective laser melting the realizer desktop machine and its application for the dental industry
JF  - Physics Procedia
Y1  - 2010
SN  - 1875-3892
N1  - Laser Assisted Net Shape Engineering 6, Proceedings of the LANE 2010, Part 2
VL  - 5
IS  - 2
SP  - 543
EP  - 549
ER  - 
TY  - JOUR
A1  - Berretz, Frank
A1  - Skorupa, Sasche
A1  - Sander, Volker
A1  - Belloum, Adam
A1  - Bubak, Marian
T1  - Actor-Driven Workflow Execution in Distributed Environments
JF  - Euro-Par 2010 Parallel Processing Workshops : HeteroPAR, HPCC, HiBB, CoreGrid, UCHPC, HPCF, PROPER, CCPI, VHPC ; Ischia, Italy, August 31 - September 3, 2010 ; revised selected papers / Mario R. Guarracino ... (eds.)
Y1  - 2011
SN  - 978-3-642-21877-4
N1  - Lecture Notes in Computer Science ; 6586
SP  - 287
EP  - 294
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Husoy, J. H.
T1  - Wavelet and subband coding of images - A comparative study / Hartung, F. ; Husoy, J. H.
JF  - Mathematical imaging: wavelet applications in signal and image processing : 15 - 16 July 1993, San Diego, California / sponsored and publ. by SPIE - the International Society for Optical Engineering. Andrew F. Laine, chair/ed
Y1  - 1993
SN  - 081941283X
N1  - SPIE proceedings series ; 2034 ; Society of Photo-Optical Instrumentation Engineers ; Conference ; (1993.07.15-16 : ; San Diego, Calif.)
SP  - 242
EP  - 253
PB  - SPIE
CY  - Bellingham, Wash.
ER  - 
TY  - JOUR
A1  - Weckesser, Matthias
A1  - Hufnagel, Andreas
A1  - Ziemons, Karl
A1  - Grießmeier, Martin
A1  - Sonnenberg, Frank
A1  - Hackländer, Thomas
A1  - Langen, Karl-J.
A1  - Holschbach, Markus
A1  - Elger, Christian E.
A1  - Müller-Gärtner, Hans-W.
T1  - Effect of partial volume correction on muscarinic cholinergic receptor imaging with single-photon emission tomography in patients with temporal lobe epilepsy
JF  - European Journal of Nuclear Medicine
N2  - Animal experiments and preliminary results in humans have indicated alterations of hippocampal muscarinic acetylcholine receptors (mAChR) in temporal lobe epilepsy. Patients with temporal lobe epilepsy often present with a reduction in hippocampal volume. The aim of this study was to investigate the influence of hippocampal atrophy on the quantification of mAChR with single photon emission tomography (SPET) in patients with temporal lobe epilepsy. Cerebral uptake of the muscarinic cholinergic antagonist [123I]4-iododexetimide (IDex) was investigated by SPET in patients suffering from temporal lobe epilepsy of unilateral (n=6) or predominantly unilateral (n=1) onset. Regions of interest were drawn on co-registered magnetic resonance images. Hippocampal volume was determined in these regions and was used to correct the SPET results for partial volume effects. A ratio of hippocampal IDex binding on the affected side to that on the unaffected side was used to detect changes in muscarinic cholinergic receptor density. Before partial volume correction a decrease in hippocampal IDex binding on the focus side was found in each patient. After partial volume no convincing differences remained. Our results indicate that the reduction in hippocampal IDex binding in patients with epilepsy is due to a decrease in hippocampal volume rather than to a decrease in receptor concentration.
Y1  - 1997
SN  - 1619-7089
VL  - 24
IS  - 9
SP  - 1156
EP  - 1161
ER  - 
TY  - JOUR
A1  - Weckesser, Martin
A1  - Grießmeier, Martin
A1  - Schmidt, Daniela
A1  - Sonnenberg, Frank
A1  - Ziemons, Karl
A1  - Kemna, Lars
A1  - Holschbach, Marcus
A1  - Langen, Karl-J.
A1  - Müller-Gärtner, Hans-W.
T1  - Iodine-123 α-methyl tyrosine single-photon emission tomography of cerebral gliomas: standardised evaluation of tumour uptake and extent
JF  - European Journal of Nuclear Medicine
N2  - Single-photon emission tomography (SPET) with the amino acid analogue l-3-[123I]iodo-α-methyl tyrosine (IMT) is helpful in the diagnosis and monitoring of cerebral gliomas. Radiolabelled amino acids seem to reflect tumour infiltration more specifically than conventional methods like magnetic resonance imaging and computed tomography. Automatic tumour delineation based on maximal tumour uptake may cause an overestimation of mean tumour uptake and an underestimation of tumour extension in tumours with circumscribed peaks. The aim of this study was to develop a program for tumour delineation and calculation of mean tumour uptake which takes into account the mean background activity and is thus optimised to the problem of tumour definition in IMT SPET. Using the frequency distribution of pixel intensities of the tomograms a program was developed which automatically detects a reference brain region and draws an isocontour region around the tumour taking into account mean brain radioactivity. Tumour area and tumour/brain ratios were calculated. A three-compartment phantom was simulated to test the program. The program was applied to IMT SPET studies of 20 patients with cerebral gliomas and was compared to the results of manual analysis by three different investigators. Activity ratios and chamber extension of the phantom were correctly calculated by the automatic analysis. A method based on image maxima alone failed to determine chamber extension correctly. Manual region of interest analysis in patient studies resulted in a mean inter-observer standard deviation of 8.7%±6.1% (range 2.7%–25.0%). The mean value of the results of the manual analysis showed a significant correlation to the results of the automatic analysis (r = 0.91, P<0.0001 for the uptake ratio; r = 0.87, P<0.0001 for the tumour area). We conclude that the algorithm proposed simplifies the calculation of uptake ratios and may be used for observer-independent evaluation of IMT SPET studies. Three-dimensional tumour recognition and transfer to co-registered morphological images based on this program may be useful for the planning of surgical and radiation treatment.
Y1  - 1998
SN  - 1619-7089
VL  - 25
IS  - 2
SP  - 150
EP  - 156
ER  - 
TY  - BOOK
A1  - Janser, Frank
A1  - Havermann, Marc
T1  - Inkompressible Strömungen
Y1  - 2012
SN  - 978-3-86130-446-3
N1  - Strömungslehre und Aerodynamik
PB  - Mainz
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Meliß, Michael
A1  - Späte, Frank
T1  - The solar heating system with seasonal storage at the Solar-Campus Jülich
JF  - Solar energy. Vol. 69 (2000), iss. 6
Y1  - 2000
SN  - 0038-092X
SP  - 525
EP  - 533
ER  - 
TY  - CHAP
A1  - Meliß, Michael
A1  - Späte, Frank
T1  - Solar-Campus Jülich - an interdisciplinary project
T2  - EuroSun '96 ; 10. Internationales Sonnenforum : proceedings. Bd 3
Y1  - 1996
SP  - 1281
EP  - 1285
PB  - DGS-Sonnenenergie
CY  - München
ER  - 
TY  - CHAP
A1  - Meliß, Michael
A1  - Späte, Frank
A1  - Lange, Harald
T1  - The Solar-Campus Jülich - an interdisciplinary project
T2  - Building a new century. 5th Conference on Solar Architecture and Design, Bonn, 27th of May 1998. Ed. by Eurosolar e.V. Ed. by Irm Pontenagel.
Y1  - 1999
SN  - 3-933745-03-9
SP  - 382
EP  - 387
PB  - Eurosolar-Verl.
CY  - Bonn
ER  - 
TY  - CHAP
A1  - Kroker, Jan
A1  - Hoffschmidt, Bernhard
A1  - Schwarzer, Klemens
A1  - Späte, Frank
T1  - PTC 1000 modular parabolic trough collector
T2  - Process heat collectors : state of the art within task 33/IV ; IEA SHC-Task 33 and SolarPACES-Task IV: Solar heat for industrial processes : Förderkennzeichen BMBF 0329273A / Solar Heating and Cooling Executive Committee of the International Energy Agency (IEA) ; ed. Werner Weiss
Y1  - 2008
SP  - 45
EP  - 46
PB  - AEE INTEC
CY  - Gleisdorf
ER  - 
TY  - CHAP
A1  - Hoffschmidt, Bernhard
A1  - Schwarzer, Klemens
A1  - Späte, Frank
A1  - Kötter, Jens
A1  - Ebert, Miriam
A1  - Sierck, Olaf
T1  - Development of a small modular parabolic trough collector
T2  - 13th International Symposium Concentrated Solar Power and Chemical Energy Technologies : SolarPaces : June 20 - 23, 2006, Seville, Spain
Y1  - 2006
SN  - 8478345191
PB  - SolarPaces
CY  - [o.O.]
ER  - 
TY  - CHAP
A1  - Neu, Eugen
A1  - Janser, Frank
A1  - Khatibi, Akbar A.
A1  - Orifici, Adrian C.
T1  - Operational modal analysis of a cantilever in a wind tunnel using optical fiber bragg grating sensors
T2  - 6th International Operational Modal Analysis Conference. IOMAC´15. 2015 May 12-14 Gijon - Spain
Y1  - 2015
U6  - https://doi.org/10.13140/RG.2.1.3753.0324
ER  - 
TY  - JOUR
A1  - Bindal, Gaurav
A1  - Sharma, Sparsh
A1  - Janser, Frank
A1  - Neu, Eugen
T1  - Detailed analysis of variables affecting wing kinematics of bat flight
JF  - SAE International Journal of Aerospace
Y1  - 2013
U6  - https://doi.org/10.4271/2013-01-9003
SN  - 1946-3901
VL  - 6
IS  - 2
SP  - 811
EP  - 818
ER  - 
TY  - JOUR
A1  - Delle, Lotta E.
A1  - Huck, Christina
A1  - Bäcker, Matthias
A1  - Müller, Frank
A1  - Grandthyll, Samuel
A1  - Jacobs, Karin
A1  - Lilischkis, Rainer
A1  - Vu, Xuan T.
A1  - Schöning, Michael Josef
A1  - Wagner, Patrick
A1  - Thoelen, Roland
A1  - Weil, Maryam
A1  - Ingebrandt, Sven
T1  - Impedimetric immunosensor for the detection of histamine based on reduced graphene oxide
JF  - Physica status solidi (a)
Y1  - 2015
U6  - https://doi.org/10.1002/pssa.201431863
SN  - 1862-6319
VL  - 212
IS  - 6
SP  - 1327
EP  - 1334
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Bouwman, Peter
A1  - Gulden, Hanneke van der
A1  - Heijden, Ingrid van der
A1  - Drost, Rinske
A1  - Klijn, Christiaan N.
A1  - Prasetyanti, Pramudita
A1  - Pieterse, Mark
A1  - Wientjens, Ellen
A1  - Seibler, Jost
A1  - Hogervorst, Frank B. L.
A1  - Jonkers, Jos
T1  - A High-Throughput Functional Complementation Assay for Classification of BRCA1 Missense Variants
JF  - Cancer Discovery
Y1  - 2013
U6  - https://doi.org/10.1158/2159-8290.CD-13-0094
SN  - 2159-8290
IS  - 3
SP  - 1142
EP  - 1152
ER  - 
TY  - CHAP
A1  - Nakagawa, Masaki
A1  - Michaux, Frank
A1  - Kallweit, Stephan
A1  - Maeda, Kazuhiro
T1  - Unsteady flow measurements in the wake behind a wind-tunnel car model by using high-speed planar PIV
T2  - 11TH International Symposium on Particle Image Velocimetry – PIV15 Santa Barbara, California, September 14-16, 2015
N2  - This study investigates unsteady characteristics of the wake behind a 28%-scale car model in a wind tunnel using highspeed planar particle image velocimetry (PIV). The car model is based on a hatchback passenger car that is known to have relatively high fluctuations in its aerodynamic loads. This study primarily focuses on the lateral motion of the flow on the horizontal plane to determine the effect of the flow motion on the straight-line stability and the initial steering response of the actual car on a track. This paper first compares the flow fields in the wake behind the above mentioned model obtained using conventional and high-speed planar PIV, with sampling frequencies of 8 Hz and 1 kHz, respectively. Large asymmetrically coherent flow structures, which fluctuate at frequencies below 2 Hz, are observed in the results of highspeed PIV measurements, whereas conventional PIV is unable to capture these features of the flow owing to aliasing. This flow pattern with a laterally swaying motion is represented by opposite signs of cross-correlation coefficients of streamwise velocity fluctuations for the two sides of the car model. Effects of two aerodynamic devices that are known to reduce the
fluctuation levels of the aerodynamic loads are then extensively investigated. The correlation analyses reveal that these devices indeed reduce the fluctuation levels of the flow and the correlation values around the rear combination-lamp, but it is found that the effects of these devices are different around the c-pillar.
Y1  - 2015
ER  - 
TY  - CHAP
A1  - Nakagawa, Masaki
A1  - Kallweit, Stephan
A1  - Michaux, Frank
A1  - Hojo, Teppei
T1  - Typical Velocity Fields and Vortical Structures around a Formula One Car, based on Experimental Investigations using Particle Image Velocimetry
T2  - SAE International Journal of Passenger Cars - Mechanical Systems
Y1  - 2016
U6  - https://doi.org/10.4271/2016-01-1611
SN  - 1946-4002
ER  - 
TY  - CHAP
A1  - Schneider, Dominik
A1  - Wisselink, Frank
A1  - Czarnecki, Christian
A1  - Nölle, Nikolai
T1  - Benefits and framework conditions for information-driven business models concerning the Internet of Things
T2  - Digitalization in companies
N2  - In the context of the increasing digitalization, the Internet of Things (IoT) is seen as a technological driver through which completely new business models can emerge in the interaction of different players. Identified key players include traditional industrial companies, municipalities and telecommunications companies. The latter, by providing connectivity, ensure that small devices with tiny batteries can be connected almost anywhere and directly to the Internet. There are already many IoT use cases on the market that provide simplification for end users, such as Philips Hue Tap. In addition to business models based on connectivity, there is great potential for information-driven business models that can support or enhance existing business models. One example is the IoT use case Park and Joy, which uses sensors to connect parking spaces and inform drivers about available parking spaces in real time. Information-driven business models can be based on data generated in IoT use cases. For example, a telecommunications company can add value by deriving more decision-relevant information – called insights – from data that is used to increase decision agility. In addition, insights can be monetized. The monetization of insights can only be sustainable, if careful attention is taken and frameworks are considered. In this chapter, the concept of information-driven business models is explained and illustrated with the concrete use case Park and Joy. In addition, the benefits, risks and framework conditions are discussed.
Y1  - 2024
SN  - 978-3-658-39093-8 (Print)
SN  - 978-3-658-39094-5 (eBook)
U6  - https://doi.org/10.1007/978-3-658-39094-5_5
SP  - 59
EP  - 75
PB  - Springer
CY  - Wiesbaden
ER  - 
TY  - JOUR
A1  - Bergmann, Ole
A1  - Möhren, Felix
A1  - Braun, Carsten
A1  - Janser, Frank
T1  - On the influence of elasticity on swept propeller noise
JF  - AIAA SCITECH 2023 Forum
N2  - High aerodynamic efficiency requires propellers with high aspect ratios, while propeller sweep potentially reduces noise. Propeller sweep and high aspect ratios increase elasticity and coupling of structural mechanics and aerodynamics, affecting the propeller performance and noise. Therefore, this paper analyzes the influence of elasticity on forward-swept, backward-swept, and unswept propellers in hover conditions. A reduced-order blade element momentum approach is coupled with a one-dimensional Timoshenko beam theory and Farassat's formulation 1A. The results of the aeroelastic simulation are used as input for the aeroacoustic calculation. The analysis shows that elasticity influences noise radiation because thickness and loading noise respond differently to deformations. In the case of the backward-swept propeller, the location of the maximum sound pressure level shifts forward by 0.5 °, while in the case of the forward-swept propeller, it shifts backward by 0.5 °. Therefore, aeroacoustic optimization requires the consideration of propeller deformation.
Y1  - 2023
U6  - https://doi.org/10.2514/6.2023-0210
N1  - Session: Propeller, Open Rotor, and Rotorcraft Noise II

AIAA SCITECH 2023 Forum, 23-27 January 2023, National Harbor, MD & Online
PB  - AIAA
CY  - Reston, Va.
ER  - 
TY  - JOUR
A1  - Möhren, Felix
A1  - Bergmann, Ole
A1  - Janser, Frank
A1  - Braun, Carsten
T1  - Assessment of structural mechanical effects related to torsional deformations of propellers
JF  - CEAS Aeronautical Journal
N2  - Lifting propellers are of increasing interest for Advanced Air Mobility. All propellers and rotors are initially twisted beams, showing significant extension–twist coupling and centrifugal twisting. Torsional deformations severely impact aerodynamic performance. This paper presents a novel approach to assess different reasons for torsional deformations. A reduced-order model runs large parameter sweeps with algebraic formulations and numerical solution procedures. Generic beams represent three different propeller types for General Aviation, Commercial Aviation, and Advanced Air Mobility. Simulations include solid and hollow cross-sections made of aluminum, steel, and carbon fiber-reinforced polymer. The investigation shows that centrifugal twisting moments depend on both the elastic and initial twist. The determination of the centrifugal twisting moment solely based on the initial twist suffers from errors exceeding 5% in some cases. The nonlinear parts of the torsional rigidity do not significantly impact the overall torsional rigidity for the investigated propeller types. The extension–twist coupling related to the initial and elastic twist in combination with tension forces significantly impacts the net cross-sectional torsional loads. While the increase in torsional stiffness due to initial twist contributes to the overall stiffness for General and Commercial Aviation propellers, its contribution to the lift propeller’s stiffness is limited. The paper closes with the presentation of approximations for each effect identified as significant. Numerical evaluations are necessary to determine each effect for inhomogeneous cross-sections made of anisotropic material.
KW  - Lifting propeller
KW  - Extension–twist coupling
KW  - Trapeze effect
KW  - Centrifugal twisting moment
Y1  - 2024
U6  - https://doi.org/10.1007/s13272-024-00737-7
SN  - 1869-5590 (eISSN)
SN  - 1869-5582
N1  - Corresponding author: Felix Möhren
PB  - Springer
CY  - Wien
ER  -