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Alexander Penn
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Cation diffusion in La 0.6 Sr 0.4 CoO 3− δ below 800 C and its relevance for Sr segregation
M Kubicek, GM Rupp, S Huber, A Penn, AK Opitz, J Bernardi, ...
Physical Chemistry Chemical Physics 16 (6), 2715-2726, 2014
1332014
A high‐performance gradient insert for rapid and short‐T2 imaging at full duty cycle
M Weiger, J Overweg, MB Rösler, R Froidevaux, F Hennel, BJ Wilm, ...
Magnetic resonance in medicine 79 (6), 3256-3266, 2018
1102018
A high-performance head and extremity insert gradient for rapid and short-T2 imaging: 200 mT/m, 1200 mT/m/ ms, and 100% duty cycle
M Weiger, J Overweg, MB Rösler, R Froidevaux, F Hennel, BJ Wilm, ...
ESMRMB Congress, 294, 2017
110*2017
Correlating surface cation composition and thin film microstructure with the electrochemical performance of lanthanum strontium cobaltite (LSC) electrodes
GM Rupp, A Limbeck, M Kubicek, A Penn, M Stöger-Pollach, ...
Journal of Materials Chemistry A 2 (19), 7099-7108, 2014
682014
Real-time probing of granular dynamics with magnetic resonance
A Penn, T Tsuji, DO Brunner, CM Boyce, KP Pruessmann, CR Müller
Science Advances 3 (9), e1701879, 2017
622017
Real-time magnetic resonance imaging of bubble behavior and particle velocity in fluidized beds
A Penn, CM Boyce, T Kovar, T Tsuji, KP Pruessmann, CR Müller
Industrial & engineering chemistry research 57 (29), 9674-9682, 2018
432018
Electrochemical properties of La0. 6Sr0. 4CoO3− δ thin films investigated by complementary impedance spectroscopy and isotope exchange depth profiling
M Kubicek, TM Huber, A Welzl, A Penn, GM Rupp, J Bernardi, ...
Solid State Ionics 256, 38-44, 2014
432014
Magnetic resonance imaging of single bubbles injected into incipiently fluidized beds
CM Boyce, A Penn, M Lehnert, KP Pruessmann, CR Müller
Chemical engineering science 200, 147-166, 2019
372019
Gravitational instabilities in binary granular materials
CP McLaren, TM Kovar, A Penn, CR Müller, CM Boyce
Proceedings of the National Academy of Sciences 116 (19), 9263-9268, 2019
312019
Magnetic resonance imaging of gas–solid fluidization with liquid bridging
CM Boyce, A Penn, KP Pruessmann, CR Müller
AIChE Journal, 2017
312017
Regimes of jetting and bubbling in a fluidized bed studied using real-time magnetic resonance imaging
A Penn, CM Boyce, KP Pruessmann, M Christoph R.
Chemical Engineering Journal 383, 123185, 2020
292020
Real-time magnetic resonance imaging of fluidized beds with internals
A Penn, CM Boyce, N Conzelmann, G Bezinge, KP Pruessmann, ...
Chemical engineering science 198, 117-123, 2019
252019
A review on fast tomographic imaging techniques and their potential application in industrial process control
U Hampel, L Babout, R Banasiak, E Schleicher, M Soleimani, T Wondrak, ...
Sensors 22 (6), 2309, 2022
222022
Effect of liquid bridging on bubbles injected into a fluidized bed: A magnetic resonance imaging study
CM Boyce, A Penn, M Lehnert, KP Pruessmann, CR Müller
Powder technology 343, 813-820, 2019
222019
Wake volume of injected bubbles in fluidized beds: A magnetic resonance imaging velocimetry study
CM Boyce, A Penn, M Lehnert, KP Pruessmann, CR Müller
Powder technology 357, 428-435, 2019
152019
Link between packing morphology and the distribution of contact forces and stresses in packings of highly nonconvex particles
NA Conzelmann, A Penn, MN Partl, FJ Clemens, LD Poulikakos, ...
Physical review E 102 (6), 062902, 2020
132020
Anomalous collapse of interacting bubbles in a fluidized bed: A magnetic resonance imaging study
CM Boyce, A Penn, A Padash, M Lehnert, KP Prüssmann, CR Müller
Physical review fluids 4 (3), 034303, 2019
132019
Magnetic resonance imaging of interaction and coalescence of two bubbles injected consecutively into an incipiently fluidized bed
CM Boyce, A Penn, M Lehnert, KP Prüssmann, CR Müller
Chemical engineering science 208, 115152, 2019
122019
Asynchronous bubble pinch-off pattern arising in fluidized beds due to jet interaction: A magnetic resonance imaging and computational modeling study
A Penn, A Padash, M Lehnert, KP Pruessmann, CR Müller, CM Boyce
Physical review fluids 5 (9), 094303, 2020
102020
CFD-DEM study of bubble properties in a cylindrical fluidized bed of Geldart Group D particles and comparison with prior MRI data
K Xi, T Kovar, WD Fullmer, A Penn, J Musser, CM Boyce
Powder technology 389, 75-84, 2021
92021
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