Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2018Arterial Spin Labeling Cerebral Perfusion Magnetic Resonance Imaging in Migraine Aura: An Observational Study
Wolf, M.E.; Okazaki, S.; Eisele, P.; Rossmanith, C.; Gregori, J.; Griebe, M.; Günther, M.; Gass, A.; Hennerici, M.G.; Szabo, K.; Kern, R.
Journal Article
2016Prediction of early reperfusion from repeated arterial spin labeling perfusion magnetic resonance imaging during intravenous thrombolysis
Okazaki, S.; Griebe, M.; Gregori, J.; Günther, M.; Sauter-Servaes, J.; Wolf, M.E.; Gass, A.; Hennerici, M.G.; Szabo, K.; Kern, R.
Journal Article
2016Simulation of electromagnetic inspection techniques using FEM analysis
Gabi, Yasmine; Wolter, Bernd; Kern, Rolf; Conrad, Christian; Gerbershagen, Andreas
Conference Paper
2016Testing of PHS CarBodyParts: Process integrated, reliable and in a matter of seconds!
Conrad, Christian; Kern, Rolf; Wolter, Bernd
Conference Paper
20153MA finite element modeling of 3MA NDT devices in different inspection situation
Gabi, Yasmine; Wolter, Bernd; Martins, Olivier; Gerbershagen, Andreas; Kern, Rolf; Conrad, Christian
Journal Article
2015Industrial demands and nondestructive testing (NDT) solutions for process monitoring and quality control in hot and cold formed steel production
Conrad, Christian; Kern, Rolf; Wolter, Bernd; Wicke, Tim; Tonne, Jens
Conference Paper
2014Nondestructive determination of mechanical properties of open-die forgings and potentials for full implementation in production process chain
Ewen, Michaela; Blaes, Nikolaus; Bokelmann, Dieter; Braun, Peter; Conrad, Christian; Gabi, Yasmine; Kern, Rolf; Kopp, Harald; Wolter, Bernd
Conference Paper
2014Verfahren, Vorrichtung und Verwendung der Vorrichtung zur zerstörungsfreien quantitativen Bestimmung von Schichtdicken eines Schichten aufweisenden Körpers
Kern, Rolf; Kopp, Harald; Conrad, Christian; Wolter, Bernd
Patent
2013Assessment of Perfusion Deficits in Ischemic Stroke Using 3D-GRASE Arterial Spin Labeling Magnetic Resonance Imaging with Multiple Inflow Times
Wolf, M.E.; Layer, V.; Gregori, J.; Griebe, M.; Szabo, K.; Gass, A.; Hennerici, M.G.; Günther, M.; Kern, R.
Journal Article
2013Continuous magnetic resonance perfusion imaging acquisition during systemic thrombolysis in acute stroke
Griebe, M.; Kern, R.; Eisele, P.; Sick, C.; Wolf, M.E.; Sauter-Servaes, J.; Gregori, J.; Günther, M.; Hennerici, M.G.; Szabo, K.
Journal Article
2013T2-based arterial spin labeling measurements of blood to tissue water transfer in human brain
Gregori, J.; Schuff, N.; Kern, R.; Günther, M.
Journal Article
2013Zerstörungsfreie Prüfung pressgehärteter Karosserieteile mit 3MA
Conrad, Christian; Kern, Rolf; Kopp, Harald; Wolter, Bernd
Conference Paper
2012Real time correction of extended segmented arterial spin labeling protocols using stereoscopic optical head motion tracking
Gregori, Johannes; Hoßbach, Martin; Kern, R.; Günther, Matthias
Abstract
2011Primary Solar Cell Standards Comparison of Extraterrestrial Synhetic Calibration
Baur, C.; Siefer, G.; Kern, R.; Winter, S.
Conference Paper
2010Development, cost reduction and customized design of industrial concentrator solar cells with efficiencies approaching 40% and above
Guter, W.; Bensch, W.; Kern, R.; Köstler, W.; Meusel, M.; Strobl, G.; Riesen, S. van; Gerstmaier, T.; Gombert, A.; Dimroth, F.; Bett, A.W.
Conference Paper
2010III-V multijunction solar cells - from current space and terrestrial products to modern cell architectures
Meusel, M.; Bensch, W.; Fuhrmann, D.; Guter, W.; Kern, R.; Köstler, W.; Löckenhoff, R.; Strobl, G.; Kellenbenz, R.; Klinger, V.; Siefer, G.; Welser, E.; Dimroth, F.; Bett, A.W.
Conference Paper
2010Towards the industrialization of concentrator solar cells with efficiencies above 40%
Guter, W.; Meusel, M.; Köstler, W.; Kern, R.; Siefer, G.; Kellenbenz, R.; Dimroth, F.
Conference Paper
2008Industrial applications of 3MA - Micromagnetic multiparameter microstructure and stress analysis
Dobmann, G.; Altpeter, I.; Wolter, B.; Kern, R.
Conference Paper
2008Industrial applications of 3MA - Micromagnetic multiparameter microstructure and stress analysis
Dobmann, G.; Altpeter, I.; Wolter, B.; Kern, R.
Conference Paper
2007Development and production of European III-V multi-junction solar cells
Meusel, M.; Bensch, W.; Bergunde, T.; Kern, R.; Khorenko, V.; Köstler, W.; LaRoche, G.; Torunski, T.; Zimmermann, W.; Strobl, G.; Guter, W.; Hermle, M.; Hoheisel, R.; Siefer, G.; Welser, E.; Dimroth, F.; Bett, A.W.; Geens, W.; Baur, C.; Taylor, S.; Hey, G.
Conference Paper
2006Catalytic platinum layers for dye solar cells: A comparative study
Khelashvili, G.; Behrens, S.; Weidenthaler, C.; Vetter, C.; Hinsch, A.; Kern, R.; Skupien, K.; Dinjus, E.; Bonnemann, H.
Conference Paper, Journal Article
2006European roadmap of multijunction solar cells and qualification status
Strobl, G.; Bergunde, T.; Köstler, W.; Kern, R.; Meusel, M.; LaRoche, G.; Zimmermann, W.; Bett, A.W.; Dimroth, F.; Geens, W.; Taylor, S.; Fernandez, E.; Gerlach, L.; Signorini, C.; Hey, G.
Conference Paper
2006A glass frit-sealed dye solar cell module with integrated series connections
Sastrawan, R.; Beier, J.; Belledin, U.; Hemming, S.; Hinsch, A.; Kern, R.; Vetter, C.; Petrat, F.M.; Prodi-Schwab, A.; Lechner, P.; Hoffmann, W.
Journal Article
2006Influence of scattering layers on efficiency of dye-sensitized solar cells
Hore, S.; Vetter, C.; Kern, R.; Smit, H.; Hinsch, A.
Journal Article
2006Interconnecting dye solar cells in modules - I-V characteristics under reverse bias
Sastrawan, R.; Renz, J.; Prahl, C.; Beier, J.; Hinsch, A.; Kern, R.
Journal Article
2006New interdigital design for large area dye solar modules using a lead-free glass frit sealing
Sastrawan, R.; Beier, J.; Belledin, U.; Hemming, S.; Hinsch, A.; Kern, R.; Vetter, C.; Petrat, F.M.; Prodi-Schwab, A.; Lechner, P.; Hoffmann, W.
Journal Article
2006Production and characterization of ITO-Pt semiconductor powder containing nanoscale noble metal particles catalytically active in dye-sensitized solar cells
Katusic, S.; Albers, P.; Kern, R.; Petrat, F.M.; Sastrawan, R.; Hore, S.; Hinsch, A.; Gutsch, A.
Journal Article
2006UV-stabilisierendes Halbleitermaterial, insbesondere fuer Solarzellen, sowie Verfahren zur Herstellung
Kern, R.; Hinsch, A.; Hore, S.
Patent
2006Verfahren zur Herstellung der Photoelektrode einer Solarzelle
Kern, R.; Nitz, P.; Hore, S.
Patent
2005Automatic Scoring and Quality Assessment Using Accuracy Bounds for FP-TDI SNP Genotyping Data
Kschischo, M.; Kern, R.; Gieger, C.; Steinhauser, M.; Tolle, R.
Journal Article
2005Development status of European multi-junction space solar cells with high radiation hardness
Meusel, M.; Baur, C.; Guter, W.; Hermle, M.; Dimroth, F.; Bett, A.W.; Bergunde, T.; Dietrich, R.; Kern, R.; Köstler, W.; Nell, M.; Zimmermann, W.; LaRoche, G.; Strobl, G.; Taylor, S.; Signorini, C.; Hey, G.
Conference Paper
2005Evolution of fully European triple GaAs solar cells
Strobl, G.; Dietrich, R.; Hilgarth, J.; Kern, R.; Köstler, W.; LaRoche, G.; Meusel, M.; Poeck, D.; Rasch, K.D.; Zimmermann, W.; Bett, A.W.; Dimroth, F.; Taylor, S.; Signorini, C.; Schuelke, P.; Hey, G.
Conference Paper
2005Impedance spectroscopy on organic bulk-heterojunction solar cells
Glatthaar, M.; Mingirulli, N.; Zimmermann, B.; Ziegler, T.; Kern, R.; Niggemann, M.; Hinsch, A.; Gombert, A.
Journal Article
2005Impedanzspektroskopische Untersuchungen an organischen Solarzellen
Mingirulli, N.
: Wegener, M. (Prüfer); Wittwer, V. (Prüfer); Kern, R. (Prüfer)
Thesis
2005Implication of device functioning due to back reaction of electrons via the conducting glass substrate in dye sensitized solar cells
Hore, S.; Kern, R.; Hinsch, A.
Journal Article
2005Incorporating a secondary electrode in the dye solar cell
Würfel, U.; Peters, M.; Hinsch, A.; Kern, R.
Conference Paper
2005Industrial integration of residual stress measuring NDT-systems based on ultrasonics and micromagnetics
Altpeter, I.; Dobmann, G.; Kern, R.; Schneider, E.; Wolter, B.; Spies, M.
Conference Paper
2005Interconnecting dye solar cells in modules - I-V characteristics under reverse bias
Sastrawan, R.; Renz, J.; Prahl, C.; Beier, J.; Hinsch, A.; Kern, R.
Conference Paper
2005Kontinuierliche Inline-Prüfung von Qualitätsmerkmalen in Feinblech
Wolter, B.; Dobmann, G.; Kern, R.
Conference Paper
2005Scattering spherical voids in nanocrystalline TiO2 - Enhancement of efficiency in dye-sensitized solar cells
Hore, S.; Nitz, P.; Vetter, C.; Prahl, C.; Niggemann, M.; Kern, R.
Journal Article
2005Towards manufacturing dye solar cells
Sastrawan, R.; Hinsch, A.; Beier, J.; Belledin, U.; Hemming, S.; Hore, S.; Kern, R.; Prahl, C.; Renz, J.; Vetter, C.; Würfel, U.; Luther, J.; Petrat, F.M.; Prodi-Schwab, A.
Conference Paper
2005Upscaling dye solar modules with durable glass frit sealing
Sastrawan, R.; Hinsch, A.; Beier, J.; Belledin, U.; Hemming, S.; Kern, R.; Vetter, C.
Conference Paper
2005Zerstörungsfreie Bestimmung von Qualitätsmerkmalen bei der Grobblechfertigung
Wolter, B.; Kern, R.; Schneider, E.; Bucholtz, O.-W.; Hofmann, U.; Meilland, C.
Conference Paper
2004Farbstoffsensibilisierte photovoltaische Zelle, ein Verfahren zur Herstellung dieser photovoltaischen Zellen sowie deren Verwendung
Petrat, F.; Stuetzel, B.; Schmidt, F.G.; Michael, G.; Gutsch, A.; Katusic, S.; Hinsch, A.; Kern, R.; Sastrawan, R.
Patent
2004Mechanical property determination of heavy steel plates and cold rolled steel sheets by micro-magnetic NDT
Dobmann, G.; Wolter, B.; Kern, R.
Conference Paper
2003Advanced GaInP/Ga(In)As/Ge triple junction space solar cells
Strobl, G.; Dietrich, R.; Hilgarth, J.; Köstler, W.; Kern, R.; Nell, M.; Rothenbacher, S.; Bett, A.W.; Dimroth, F.; Meusel, M.; Campesato, R.; Flores, C.; Timo, G.; Smekens, G.; Vanbegin, J.; Raskin, G.; Geens, W.; LaRoche, G.; Hey, G.; Signorini, C.; Taylor, S.
Conference Paper
2003Detection and quantification of grinding damage by using EC and 3MA techniques
Wolter, B.; Theiner, W.; Kern, R.; Becker, R.; Rodner, C.; Kreier, P.; Ackeret, P.
Conference Paper
2003Improving SNP genotyping results by introducing Gaussian mixture models for genotype calling
Gieger, C.; Kschischo, M.; Kern, R.; Steinhauser, M.; Tolle, R.
Conference Paper
2003Polymere Solarzellen
Hinsch, A.; Niggemann, M.; Ell, J.; Riede, M.; Glatthaar, M.; Zimmermann, B.; Kern, R.; Luther, J.
Conference Paper
2003Recent concepts to improve the efficiency of dye solar cells
Hinsch, A.; Würfel, U.; Hore, S.; Sastrawan, R.; Kern, R.; Luther, J.
Conference Paper
2003Zerstörungsfreie Bestimmung von Qualitätsmerkmalen bei der Grobblechfertigung
Wolter, B.; Kern, R.; Buchholz, O.; Hofmann, U.
Conference Paper
2002Advanced GaInP/Ga(In)As/Ge triple-junction space solar cells
Strobl, G.; Hilgarth, J.; Nell, M.; Dietrich, R.; Kern, R.; Köstler, W.; Bett, A.W.; Dimroth, F.; Schubert, U.; Flores, C.; Campesato, R.; Timo, G.; LaRoche, G.; Signorini, C.; Bogus, K.
Conference Paper
2002Modeling and interpretation of electrical impedance spectra of dye solar cells operated under open-circuit conditions
Kern, R.; Sastrawan, R.; Ferber, J.; Stangl, R.; Luther, J.
Journal Article
2002Process-integrated nondestructive testing of ground and case hardened parts
Theiner, W.; Kern, R.; Stroh, M.
Conference Paper
2002Robust solutions of inverse problems in eletromagnetic non-destructive evaluation
Altpeter, I.; Becker, R.; Dobmann, G.; Kern, R.; Theiner, W.; Yashan, A.
Journal Article
2001Electromagnetic and Micro-Magnetic Non-Destructive Characterization (NDC) for Material Mechanical Property Determination and Prediction in Steel Industry and in Lifetime Extension Strategies of NPP Steel Components
Dobmann, G.; Becker, R.; Altpeter, I.; Kern, R.; Lang, M.A.; Yashan, A.; Theiner, W.
Conference Paper
2001Electromagnetic and micro-magnetic nondestructive characterization (NDC) for material mechanical property determination and prediction in steel-industry and in lifetime extension strategies of NPP steel-components
Dobmann, G.; Altpeter, I.; Becker, R.; Lang, M.; Kern, R.; Yashan, A.; Theiner, W.
Journal Article
2001Long-term stability of dye-sensitised solar cells
Hinsch, A.; Kroon, J.M.; Kern, R.; Uhlendorf, I.; Holzbock, J.; Meyer, A.; Ferber, J.
Journal Article
2000Electromagnetic and micro-magnetic non-destructive characterization (NDC) for material mechanical property determination and prediction in steel industry and in lifetime extension strategies of NPP steel components
Dobmann, G.; Altpeter, I.; Becker, R.; Lang, M.; Kern, R.; Yashan, A.; Theiner, W.
Journal Article
2000Micro-Magnetic, Multiple Parameter, Microstructure and Stress Analysis (3MA) to characterise Toughness Degradatioh after Heat-treatment in JRQ-Reference Material
Dobmann, G.; Kern, R.
Conference Paper
2000Micro-Magnetic, Multiple-Parameter, Microstructure and Stress Analysis - 3MA - For Non-Destructive Material Properties Determination and Ageing Prediction
Dobmann, G.; Kern, R.
Conference Paper
2000Micromagnetic Determination of Thermal-Induced Residual Stresses in Steel and White Cast Iron
Altpeter, I.; Becking, R.; Kern, R.; Kröning, M.; Hartmann, S.
Journal Article
1999Grundlegende Untersuchungen von Randschichtmerkmalen beim Laserstrahlhärten mit ZfP-Multiparameteransätzen
Kern, R.; Theiner, W.; Bucher, B.
Book Article
1999Grundlegende Untersuchungen zur orts- und zeitaufgelösten zerstörungsfreien Bestimmung mikrostruktureller Eigenschaften
Theiner, W.; Kern, R.; Lejeune, I.; Meyer, R.
Book Article
1999Mikromagnetische Ermittlung von thermisch induzierten Eigenspannungen in Stählen und weißem Gußeisen
Altpeter, I.; Becking, R.; Kern, R.; Kröning, M.; Hartmann, S.
Book Article
1999Nachweis von Cu-Ausscheidungen mittels mikromagnetischer Prüfverfahren
Altpeter, I.; Dobmann, G.; Kern, R.; Kröning, M.; Lang, M.; Meyendorf, N.; Rösner, H.
Conference Paper
1999Process Integrated Nondestructive Testing (PINT) for Evaluation of Hardness, Case Depth and Grinding Defects
Theiner, W.; Kern, R.; Graus, M.
Conference Paper
1999Zerstörungsfreie Prüfung von randschichtgehärteten Bauteilen unter Einsatz mikromagnetischer Multiparameter-Methoden
Kern, R.; Theiner, W.
Conference Paper
1999Zerstörungsfreies Prüfen von laserstrahlgeschweißten Bauteilen
Kern, R.; Salzburger, H.-J.; Theiner, W.; Wohlfahrt, H.
Journal Article
1998Barkhausen noise measurements and related mesurements in ferromagnetic materials
Dobmann, G.; Altpeter, I.; Becker, R.; Kern, R.; Laub, U.; Theiner, W.
Book Article
1998Characterization of the electrolyte-solid interfaces of dye-sensitized solar cells by means of impedance spectroscopy
Hauch, A.; Kern, R.; Ferber, J.; Georg, A.; Luther, J.
Conference Paper
1998Characterization of the Microstructure of Laser-Hardened Carbon Steels by Means of Positron Lifetime Measurements and Micromagnetics
Somieski, B.; Meyendorf, N.; Kern, R.; Krause-Rehberg, R.
Conference Paper
1998Elektromagnetische und Ultraschallverfahren zur Spannungsanalyse an Bauteilen
Theiner, W.; Schneider, E.; Kern, R.
Conference Paper
1997Charakterisierung der Bearbeitungszustände kleiner rotations-symmetrischer Teile mit Hilfe hochauflösender Barkhausenrausch- und Wirbelstrommessungen
Rösner, H.; Altpeter, I.; Meyendorf, N.; Kern, R.
Conference Paper
1997Quantitative Evaluation of Thermally Induced Residual Stresses in White Cast Iron and Steels with Different Cementite Morphologies
Altpeter, I.; Kern, R.; Lang, M.A.
Conference Paper
1997Verfahren zur zerstoerungsfreien Werkstoffpruefung.
Kern, R.; Dobmann, G.; Altpeter, I.; Theiner, W.A.
Patent
1996Einsatz von zfP-Verfahren zur prozeßgesteuerten Materialbearbeitung
Brüggemann, G.; Benzinger, T.; Meyendorf, N.; Kern, R.; Theiner, W.
Conference Paper
1996Process Integrated Nondestructive Testing for Evaluation of Hardness
Kröning, M.; Theiner, W.; Kern, R.; Bucher, B.; Meyer, R.; Wolf, H.
Conference Paper
1996Process integrated nondestructive testing of laser-hardened components
Kern, R.; Theiner, W.; Valeske, B.; Meyer, R.
Conference Paper
1996Zerstörungsfreie Prüfung von Nitrierschichten
Altpeter, I.; Detemple, I.; Kern, R.; Kopp, M.; Huber-Gomman, U.; Rühe, S.
Journal Article
1995Hochauflösende zerstörungsfreie Ermittlung lokaler Gefüge- und Eigenspannungszustände mit Hilfe der Barkhausen-Mikroskopie
Kern, R.; Altpeter, I.; Blumenauer, H.; Detemple, I.
Conference Paper
1994Evaluation of second order residual stresses in iron carbon steels and white cast iron using micromagnetic methods
Altpeter, I.; Kern, R.; Meyendorf, N.
Conference Paper
1994Quantitative evaluation of machined and laserhardened surfaces by x-ray and micromagnetic techniques
Kern, R.; Schneider, E.; Theiner, W.
Conference Paper
1994Zerstörungsfreie Bestimmung der Einhärtungstiefe nach dem Randschichthärten mit mikromagnetischen Prüfverfahren. Beispiel: Laserhärten
Kern, R.; Theiner, W.; Bergmann, H.W.; Müller, D.; Damaschek, R.; Rudlaff, T.; Bloehs, W.
Journal Article
1993Evaluation of thermally induced residual stresses in white cast iron and iron-carbon steel.
Altpeter, I.; Kern, R.; Kröning, M.
Conference Paper
1992Härtezonenüberwachung an Planetenrandbolzen
Hochheim, H.; Kern, R.; Theiner, W.
Conference Paper
1991Zerstörungsfreie Charakterisierung des Zähigkeitsverhaltens mit mikromagnetischen Meßgrößen
Kern, R.; Theiner, W.
Conference Paper
1990Ansätze einer zerstörungsfreien Bestimmung von Zähigkeitskenngrößen mit mikromagnetischen Meßgrößen
Kern, R.; Theiner, W.
Conference Paper
1990Residual stress- and microstructure anisotropies in laser-hardened or shot peened surface
Höller, P.; Kern, R.; Theiner, W.A.
Conference Paper
1989Characterization of cementite in steel and white cast iron by micromagnetic nondestructive methods
Altpeter, I.; Höller, P.; Kern, R.
Conference Paper
1989Comparative micromagnetic and Mössbauer spectroscopic depth profile analysis of laserhardened steel X210Cr12
Schaaf, P.; Gonser, U.; Kern, R.; Theiner, W.A.
Conference Paper
1988Depth profile of a laser irradiated steel.
Blaes, L.; Bauer, P.; Gonser, U.; Kern, R.
Journal Article
1988Quantitative hardening-depth-measurements up to 4 mm by means of micromagnetic microstructure multiparameter analysis -3MA-.
Altpeter, I.; Dobmann, G.; Kern, R.; Theiner, W.
Conference Paper
1987Determination of sub-surface microstructure states by micromagnetic NDT
Altpeter, I.; Kern, R.; Theiner, W.
Conference Paper
1987Non-destructive magnetic testing of laser hardening parameters
Kern, R.; Theiner, W.
Conference Paper
1987Zerstörungsfreie Qualitätsprüfung gehärteter Schichten mit einem mikromagnetischen Verfahren
Kern, R.; Theiner, W.
Journal Article
1985Determination of surface integrities by ferromagnetic
Conrad, R.; Kern, R.; Theiner, W.A.
Conference Paper
1985Untersuchungen an Gefuegeparametern mit zerstoerungsfreien magnetischen und magnetoelastischen Verfahren
Altpeter, I.; Kern, R.; Theiner, W.
Book Article