aaron-spettl.de

Profile

I'm passionate about building great software, going the full journey from ideation over development to operations. Currently focused on developing some of my own projects, I'm also open to taking on part-time freelance opportunities in DevOps, with a particular expertise in CI/CD pipelines and Kubernetes.

Technologies

• 2024
  Azure
• 2022
  AWS
• 2020
  Kubernetes
• 2019
  C#, React
• 2018
  Docker
• 2017
  TypeScript, Jenkins
• 2010
  Java
• 2008
  Ruby on Rails
• 2005
  Linux, Bash
• 2003
  PHP, MySQL
• 1999
  Delphi

Publications

2017

• L. Handl, L. Torbahn, A. Spettl, V. Schmidt, and A. Kwade, Structural analysis and tracking of micron-sized glass particles during shear deformation: A study based on time-resolved tomographic data (Preprint). Advanced Powder Technology 28 (2017), 1920-1929. DOI: 10.1016/j.apt.2017.05.002
• M. Weber, A. Spettl, M. Dosta, S. Heinrich, and V. Schmidt, Simulation-based investigation of core-shell agglomerates: Influence of spatial heterogeneity in particle sizes on breakage characteristics (Preprint). Computational Materials Science 137 (2017), 100-106. DOI: 10.1016/j.commatsci.2017.05.014
• A. Spettl, M. Dosta, F. Klingner, S. Heinrich, and V. Schmidt, Copula-based approximation of particle breakage as link between DEM and PBM (Preprint). Computers & Chemical Engineering 99 (2017), 158-170. DOI: 10.1016/j.compchemeng.2017.01.023

2016

• A. Spettl, T. Werz, C.E. Krill III, and V. Schmidt, Stochastic modeling of individual grain behavior during Ostwald ripening at ultra-high volume fractions of the coarsening phase (Preprint). Computational Materials Science 124 (2016), 290-303. DOI: 10.1016/j.commatsci.2016.07.031
• A. Spettl, S. Bachstein, M. Dosta, M. Goslinska, S. Heinrich, and V. Schmidt, Bonded-particle extraction and stochastic modeling of internal agglomerate structures (Preprint). Advanced Powder Technology 27 (2016), 1761-1774. DOI: 10.1016/j.apt.2016.06.007
• A. Spettl, M. Dosta, S. Bachstein, S. Heinrich, and V. Schmidt, Microstructural effects in breakage behavior of real and virtual agglomerates under compressive load: Automated extraction of internal microstructures, their stochastic modeling and copula-based breakage models fitted to DEM data (Preprint). Proceedings of the International Congress on Particle Technology, Nürnberg, 2016, Paper-ID 1.18.
• L. Handl, L. Torbahn, A. Spettl, H. Zetzener, V. Schmidt, and A. Kwade, Microstructural changes, particle tracking and shear localization of fine glass powders (Preprint). Proceedings of the International Congress on Particle Technology, Nürnberg, 2016, Paper-ID 2.29.
• A. Spettl, T. Brereton, Q. Duan, T. Werz, C.E. Krill III, D.P. Kroese, and V. Schmidt, Fitting Laguerre tessellation approximations to tomographic image data (Preprint, arXiv:1508.01341 [cond-mat.mtrl-sci]). Philosophical Magazine 96 (2016), 166-189. DOI: 10.1080/14786435.2015.1125540

2015

• J. Feinauer, T. Brereton, A. Spettl, M. Weber, I. Manke, and V. Schmidt, Stochastic 3D modeling of the microstructure of lithium-ion battery anodes via Gaussian random fields on the sphere (Preprint). Computational Materials Science 109 (2015), 137-146. DOI: 10.1016/j.commatsci.2015.06.025
• A. Spettl, R. Wimmer, T. Werz, M. Heinze, S. Odenbach, C.E. Krill III, and V. Schmidt, Stochastic 3D modeling of Ostwald ripening at ultra-high volume fractions of the coarsening phase (Preprint). Modelling and Simulation in Materials Science and Engineering 23 (2015), 065001. DOI: 10.1088/0965-0393/23/6/065001
• J. Feinauer, A. Spettl, I. Manke, S. Strege, A. Kwade, A. Pott, and V. Schmidt, Structural characterization of particle systems using spherical harmonics (Preprint). Materials Characterization 106 (2015), 123-133. DOI: 10.1016/j.matchar.2015.05.023
• A. Spettl, M. Dosta, S. Antonyuk, S. Heinrich, and V. Schmidt, Statistical investigation of agglomerate breakage based on combined stochastic microstructure modeling and DEM simulations (Preprint). Advanced Powder Technology 26 (2015), 1021-1030. DOI: 10.1016/j.apt.2015.04.011
• L. Zielke, C. Barchasz, S. Waluś, F. Alloin, J.-C. Leprêtre, A. Spettl, V. Schmidt, A. Hilger, I. Manke, J. Banhart, R. Zengerle, and S. Thiele, Degradation of Li/S battery electrodes on 3D current collectors studied using X-ray phase contrast tomography (Preprint). Scientific Reports 5 (2015), 10921. DOI: 10.1038/srep10921
• S. Pröll, S. Pickl, A. Spettl, V. Schmidt, E. Spodarev, S. Elspaß, and W. König, Neue Dialektometrie mit Methoden der stochastischen Bildanalyse (Preprint). In: R. Kehrein, A. Lameli, and S. Rabanus (eds.): Regionale Variation des Deutschen. Berlin / Boston: De Gruyter (2015), 173-194. DOI: 10.1515/9783110363449-009
• S. Pröll, S. Pickl, and A. Spettl, Latente Strukturen in geolinguistischen Korpora (Preprint). In: M. Elmentaler, M. Hundt, and J.E. Schmidt (eds.): Deutsche Dialekte. Konzepte, Probleme, Handlungsfelder. Akten des 4. Kongresses der Internationalen Gesellschaft für Dialektologie des Deutschen (IGDD). (Zeitschrift für Dialektologie und Linguistik, Beihefte. Band 158.) Stuttgart: Steiner (2015), 247-258.
• M. Salzer, T. Prill, A. Spettl, D. Jeulin, K. Schladitz, and V. Schmidt, Quantitative comparison of segmentation algorithms for FIB-SEM images of porous media (Preprint). Journal of Microscopy 257 (2015), 23-30. DOI: 10.1111/jmi.12182

2014

• Q. Duan, D.P. Kroese, T. Brereton, A. Spettl, and V. Schmidt, Inverting Laguerre Tessellations (Preprint). The Computer Journal 57 (2014), 1431-1440. DOI: 10.1093/comjnl/bxu029
• S. Pickl, A. Spettl, S. Pröll, S. Elspaß, W. König, and V. Schmidt, Linguistic distances in dialectometric intensity estimation (Preprint). Journal of Linguistic Geography 2 (2014), 25-40. DOI: 10.1017/jlg.2014.3
• A. Spettl, T. Werz, C.E. Krill III, and V. Schmidt, Parametric representation of 3D grain ensembles in polycrystalline microstructures (Preprint). Journal of Statistical Physics 154 (2014), 913-928. DOI: 10.1007/s10955-013-0893-7

2012

• A. Spettl, M. Lindén, I. Manke, and V. Schmidt, Structural 3D characterization of silica monoliths: extraction of rod networks (Preprint). In: F. Puente Leon, and M. Heizmann (eds.): Forum Bildverarbeitung 2012. Karlsruhe: KIT Scientific Publishing (2012), 107-118. DOI: 10.5445/KSP/1000030440
• R. Thiedmann, A. Spettl, O. Stenzel, T. Zeibig, J.C. Hindson, Z. Saghi, N.C. Greenham, P.A. Midgley, and V. Schmidt, Networks of nanoparticles in organic-inorganic composites: Algorithmic extraction and statistical analysis (Preprint). Image Analysis and Stereology 31 (2012), 23-42. DOI: 10.5566/ias.v31.p27-42
• M. Salzer, A. Spettl, O. Stenzel, J.-H. Smått, M. Lindén, I. Manke, and V. Schmidt, A two-stage approach to the segmentation of FIB-SEM images of highly porous materials (Preprint). Materials Characterization 69 (2012), 115-126. DOI: 10.1016/j.matchar.2012.04.003

2011

• R. Thiedmann, O. Stenzel, A. Spettl, P.R. Shearing, S.J. Harris, N.P. Brandon, and V. Schmidt, Stochastic simulation model for the 3D morphology of composite materials in Li-ion batteries (Preprint). Computational Materials Science 50 (2011), 3365-3376. DOI: 10.1016/j.commatsci.2011.06.031