Publications

Reviewed Journal Publications

  1. A. Unterberger, C. T. Foo, Z. A. Emuang, F. J. W. A. Martins and K. Mohri. Metaheuristic Camera Calibration for Optical Tomographic Imaging in Industrial Environments. 2024 IEEE International Conference on Image Processing (ICIP), Abu Dhabi, United Arab Emirates, pp. 2163-2169, doi: 10.1109/ICIP51287.2024.10647364 (2024).
  2. F. J. W. A. Martins, C. T. Foo, A. Unterberger, S. Karaminejad, T. Endres, and K. Mohri. Analyzing 3D fields of refractive index, emission and temperature in spray-flame nanoparticle synthesis via tomographic imaging using multi-simultaneous measurements (TIMes). Applications in Energy and Combustion Science, 16, pp. 100213, doi: 10.1016/j.jaecs.2023.100213 (2023).
  3. A. Unterberger, F. J. W. A. Martins, and K. Mohri. Coupled 3D evolutionary reconstruction technique for multi-simultaneous measurements. Fuel, 346, pp. 128336, doi: 10.1016/j.fuel.2023.128336 (2023).
  4. S. J. Grauer*, K. Mohri*, T. Yu, H. Liu, and W. Cai. Volumetric emission tomography for combustion processes. Progress in Energy and Combustion Science, 94, pp. 101024, doi: 10.1016/j.pecs.2022.101024 (2023). (*joint first authors)
  5. F. J. W. A. Martins, A. Unterberger, and K. Mohri. Tomographic imaging using multi-simultaneous measurements (TIMes) of emission and refractive index 3D fields in turbulent flames. Proceedings of the Combustion Institute, 39(1), pp. 1405-1413, doi: 10.1016/j.proci.2022.09.007 (2023).
  6. C. T. Foo, A. Unterberger, F. J. W. A. Martins, M. M. Prenting, C. Schulz, and K. Mohri. Investigating spray flames for nanoparticle synthesis via tomographic imaging using multi-simultaneous measurements (TIMes) of emission. Optics Express, 30(9), pp. 15524-15545, doi: 10.1364/OE.449269 (2022).
  7. G. Liu, M. Asif, K. Mohri, C. Schulz, T. Dreier, T. Endres and J. Menser. In situ measurement of gas-borne silicon nanoparticle volume fraction and temperature by spatially and spectrally line-resolved attenuation and emission imaging. Powder Technology, 396, pp. 535-541, doi: 10.1016/j.powtec.2021.11.017 (2022).
  8. A. Unterberger and K. Mohri. Evolutionary background-oriented schlieren tomography with self-adaptive parameter heuristics. Optics Express, 30(6), pp. 8592-8614, doi: 10.1364/OE.450036 (2022).
  9. G. Liu, M. Asif, J. Menser, T. Dreier, K. Mohri, C. Schulz and T. Endres. Spatial distribution of gas-phase synthesized germanium nanoparticle volume-fraction and temperature using combined in situ line-of-sight emission and extinction spectroscopy. Optics Express, 29(6), pp. 8387-8406, doi: 10.1364/OE.418922 (2021).
  10. C. T. Foo, A. Unterberger, J. Menser and K. Mohri. Tomographic imaging using multi-simultaneous measurements (TIMes) for flame emission reconstructions. Optics Express, 29(1), pp. 244-255, doi: 10.1364/OE.412048 (2021).
  11. E. Boigné, N. R. Bennett, A. Wang, K. Mohri and M. Ihme. Simultaneous in-situ measurements of gas temperature and pyrolysis of biomass smoldering via X-ray computed tomoraphy. Proceedings of the Combustion Institute, 38(3), pp. 3899-3907, doi: 10.1016/j.proci.2020.06.070 (2020).
  12. A. Unterberger, A. Kempf and K. Mohri. 3D evolutionary reconstruction of scalar fields in the gas-phase. Energies, 12(11), doi: 10.3390/en12112075 (2019).
  13. A. Unterberger, J. Menser, A. Kempf and K. Mohri. Evolutionary camera pose estimation of a multi-camera setup for computed tomography. Proceedings of the IEEE International Conference on Image Processing, Taipei, Taiwan, doi: 10.1109/ICIP.2019.8804398 (2019).
  14. A. Unterberger, M. Röder, A. Giese, A. Al-Halbouni, A. Kempf and K. Mohri. 3D instantaneous reconstruction of turbulent industrial flames using Computed Tomography of Chemiluminescence (CTC). Journal of Combustion special issue on Coal and Biomass Combustion, doi: 10.1155/2018/5373829 (2018).
  15. S. J. Grauer, A. Unterberger, A. Rittler, K. J. Daun, A. M. Kempf and K. Mohri. Instantaneous 3D flame imaging by backgrounded-orientated schlieren tomography. Combustion and Flame, 196, pp. 284-299, doi: 10.1016/j.combustflame.2018.06.022 (2018).
  16. S. J. Grauer, A. Unterberger, K. J. Daun and K. Mohri. Demonstration of instantaneous 3D flame reconstruction by background-orientated schlieren tomography. Proceedings of the Combustion Institute - Canadian Section, Spring technical meeting, Toronto, Canada (2018).
  17. K. Mohri, S. Görs, J. Schoeler, A. Rittler, T. Dreier, C. Schulz and A. Kempf. Instantaneous 3D-imaging of highly turbulent flames using Computed Tomography of Chemiluminescence. Applied Optics, 56(26), pp. 7385-7395, doi: 10.1364/AO.56.007385 (2017).
    To download, please click here. © 2017 Optica Publishing Group. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.

Conference Contributions

  1. C. T. Foo, F. J. W. A. Martins, A. Unterberger, K. Mohri. Spray-flame synthesis characterization using tomographic imaging with multi simultaneous measurements (TIMes): Volumetric emission, refractive index, and temperature fields. Oral presentation, 6th International Symposium on Gas-Phase Synthesis of Functional Nanomaterials (Sept. 2024).
  2. C. T. Foo, F. J. W. A. Martins, A. Unterberger, M. Röder, P. Pietsch,  A. Giese and K. Mohri. Tomographic camera probe for 3D emission measurements in industrial-scale furnaces. Poster, 40th International Symposium on Combustion, Milan, Italy (Jul. 2024).
  3. M. Röder, P. Pietsch, A. Unterberger, F. J. W. A. Martins, A. Giese and K. Mohri. Tomographische 3D-Rekonstruktion der Chemilumineszenz von industriellen Hochtemperatur-Verbrennungsprozessen. Oral presentation and paper, 31. Deutscher Flammentag, Berlin, Germany (Sep. 2023).
  4. M. Röder, P. Pietsch, A. Unterberger, F. J. W. A. Martins, A. Giese and K. Mohri. Multi-Camera System for 3D Tomographic Reconstruction of Chemiluminescence in Industrial-Scale High-Temperature Combustion Processes. Poster and paper, 11th European Combustion Meeting (ECM2023), Rouen, France (Apr. 2023).
  5. C. T. Foo, F. J. W. A. Martins, A. Unterberger and K. Mohri. Volumetric imaging of the SpraySyn flame via tomographic reconstructions of emission and refractive index using multi-simultaneous measurements for investigation of nanoparticle synthesis from flame spray pyrolysis. Poster, 3rd CENIDE Conference, Bergisch Gladbach, Germany (May 2023).
  6. F. J. W. A. Martins, C. T. Foo, A. Unterberger and K. Mohri. Tomographic imaging using multi-simultaneous measurements (TIMes) for emission reconstructions in the context of nanoparticle synthesis in SpraySyn flames. Oral presentation, 5th International Symposium Gas‐Phase Synthesis of Functional Nanomaterials - Fundamental Understanding, Modeling and Simulation, Scale‐up and Application, Mülheim an der Ruhr, Germany (Oct. 2022).
  7. F. J. W. A. Martins, A. Unterberger and K. Mohri. Tomographic imaging using multi-simultaneous measurements (TIMes) of emission and refractive index 3D fields in turbulent flames. Oral presentation and paper, 39th International Symposium on Combustion, Vancouver, Canada (Jul. 2022).
  8. A. Unterberger, F. J. W. A. Martins and K. Mohri. Coupled 3D evolutionary reconstruction of refractive index and CH* fields for turbulent combustion analysis. Poster, 39th International Symposium on Combustion, Vancouver, Canada (Jul. 2022).
  9. F. J. W. A. Martins, C. T. Foo, A. Unterberger and K. Mohri. Tomographic imaging using multi-simultaneous measurements (TIMes) for single-shot emission reconstructions in turbulent spray flames. Oral presentation and paper, 20th International Symposium on Applications of Laser and Imaging Techniques to Fluid Mechanics, Lisbon, Portugal (Jul. 2022).
  10. K. Mohri. Volumetric (reactive) flow diagnostics. Oral presentation (invited), Conference on Lasers and Electro-Optics (CLEO), San Jose, USA (May 2022). [Video link]
  11. J. Menser, A. Unterberger and K. Mohri. Convolutional neural networks for camera calibration requirements in flame tomography. Oral presentation and paper, 29th Deutscher Flammentag (German flame day), Bochum, Germany (Sep. 2019).
  12. A. Unterberger, A. Kempf and K. Mohri. Phantom studies on a new evolutionary reconstruction technique applied to 3D scalar fields in the gas-phase. Poster, 9th European Combustion meeting, Lisbon, Portugal (Apr. 2019).
  13. J. Menser and K. Mohri. Flame tomography based on multi-simultaneous measurements and best practice on assessing volumetric reconstruction. Oral presentation (invited), Gordon Research Conference - Laser Diagnostics in Energy and Combustion, Les Diablerets, Switzerland (June 2019).
  14. A. Unterbeger, J. Menser, A. Kempf and K. Mohri. 3D evolutionary reconstruction of scalar fields: phantom study and application to a stratified flame. Poster, 37th International Symposium on Combustion, Dublin, Ireland (Jul.-Aug. 2018).
  15. S. J. Grauer, A. Unterberger, K. J. Daun and K. Mohri. Demonstration of instantaneous 3D flame reconstruction by background-orientated schlieren tomography. Oral presentation, Combustion Institute (Canadian Section) - Spring Technical Meeting, Toronto, Canada (2018).
  16. K. Mohri, J. Menser, A. Kempf, J. Trabold, S. Walther and D. Geyer. Instantaneous 3D imaging of the Temperature Controlled Piloted Jet Burner (TCPJB) flames using computed tomography of chemiluminescence (CTC). Poster, 37th International Symposium on Combustion, Dublin, Ireland (Jul.-Aug. 2018).
  17. S. J. Grauer, A. Unterberger, T. A. Sipkens, A. M. Kempf, K. J. Daun. and K. Mohri. Background-oriented schlieren tomography for instantaneous 3D combustion imaging. Poster, 37th International Symposium on Combustion, Dublin, Ireland (Jul.-Aug. 2018).
  18. J. Menser, A. Unterberger, L. Cifuentec, A. Kempf and K. Mohri. Quantifying flame tomography reconstructions with the aid of DNS phantom data. Poster, 37th International Symposium on Combustion, Dublin, Ireland (Jul.-Aug. 2018).
  19. J. Menser, A. Unterberger, A. Kemp and K. Mohri. Instantaneous 3D imaging of turbulent stratified methane/air flames using computed tomography of chemiluminescence. Oral presentation and paper, 5th International Conference on Experimental Fluid Mechanics (ICEFM), Munich, Germany (Jul. 2018).
  20. J. Menser, A. Unterberger, S. Grauer, A. Kempf and K. Mohri. Volumetric imaging of turbulent stratified premixed flames using tomography, background-orientated schlieren and high-speed imaging. Poster, Center for Nanointegration Duisburg-Essen (CENIDE) conference, Bergische Gladbach, Germany (Feb. 2018).
  21. K. Mohri, M. Röder, A. Giese, A. Al-Halbouni and A. Kempf. 3D instantaneous reconstruction of a turbulent industrial burner flame using Computed Tomography of Chemiluminescence (CTC). Oral presentation, 3rd General Meeting and Workshop on SECs in Industry COST Action 1404 of the European Cooperation in Science and Technology, Prague, Czech Republic (Oct. 2017).
  22. K. Mohri, M. Röder, A. Giese, A. Al-Halbouni and A. Kempf. Computed Tomography of Chemiluminescence (CTC): reconstructing turbulent laboratory and industrial flames. Poster and paper, 28th Deutscher Flammentag (German flame day), Darmstadt, Germany (Sep. 2017).
  23. J. Verbeke, A. Rittler, S. Görs, C. Schulz, A. Kempf and K. Mohri. Computed Tomography of Chemiluminescence (CTC): Effect of out-of-plane views on the quality of three-dimensional reconstruction of a turbulent swirl flame. Poster and paper, 8th European Combustion Meeting, Dubrovnik, Croatia (Apr. 2017).
  24. K. Mohri, S. Görs, J. Schöler, T. Dreier, C. Schulz and A. Kempf. Tomographic reconstruction of the highly turbulent TECFLAM and unsteady Bunsen flames’ 3D instantaneous chemiluminescence field. Poster, 36th International Symposium on Combustion, Seoul, Korea (Aug. 2016).
  25. K. Mohri and A. Kempf. Computed tomography of chemiluminescence in asymmetric unsteady premixed flames. Poster and paper, 27th Deutscher Flammentag (German flame day), Clausthal, Germany (Sep. 2015).
  26. K. Mohri and A. Kempf. Computed tomography of chemiluminescence for 3D reconstructions of quasi-steady premixed flames. Oral presentation and paper, Combustion Institute (British section) meeting, Imperial College London, United Kingdom (2014).