[{"type":"journal_article","keyword":["flow chemistry","heterogeneous catalysis","sustainable synthesis","organo-catalysis","polymeric gel dots"],"department":[{"_id":"163"}],"date_created":"2025-04-11T07:12:02Z","abstract":[{"text":"The use of organo-catalysis in continuous-flow reactor systems is gaining attention in medicinal chemistry due to its cost-effectiveness and reduced chemical waste. In this study, bioactive curcumin (CUM) derivatives were synthesized in a continuously operated microfluidic reactor (MFR), using piperidine-based polymeric networks as catalysts. Piperidine methacrylate and piperidine acrylate were synthesized and subsequently copolymerized with complementary monomers (MMA or DMAA) and crosslinkers (EGDMA or MBAM) via photopolymerization, yielding different polymeric networks. Initially, batch reactions were optimized for the organo-catalytic Knoevenagel condensation between CUM and 4-nitrobenzaldehyde, under various conditions, in the presence of polymer networks. Conversion was assessed using offline 1H NMR spectroscopy, revealing an increase in conversion with enhanced swelling properties of the polymer networks, which facilitated greater accessibility of catalytic sites. In continuous-flow MFR experiments, optimized polymer gel dots exhibited superior catalytic performance, achieving a conversion of up to 72%, compared to other compositions. This improvement was attributed to the enhanced swelling in the reaction mixture (DMSO/methanol, 7:3 v/v) at 40 °C over 72 h. Furthermore, the MFR system enabled the efficient synthesis of a series of CUM derivatives, demonstrating significantly higher conversion rates than traditional batch reactions. Notably, while batch reactions required 90% catalyst loading in the gel, the MFR system achieved a comparable or superior performance with only 50% catalyst, resulting in a higher turnover number. These findings underscore the advantages of continuous-flow organo-catalysis in enhancing catalytic efficiency and sustainability in organic synthesis.","lang":"eng"}],"publication":"Gels","issue":"4","doi":"10.3390/gels11040278","article_number":"278","main_file_link":[{"url":"https://www.mdpi.com/2310-2861/11/4/278"}],"language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2025-04-11T07:13:26Z","intvolume":" 11","year":"2025","title":"Synthesis of Curcumin Derivatives via Knoevenagel Reaction Within a Continuously Driven Microfluidic Reactor Using Polymeric Networks Containing Piperidine as a Catalyst","publication_identifier":{"issn":["2310-2861"]},"author":[{"first_name":"Naresh","last_name":"Killi","full_name":"Killi, Naresh"},{"full_name":"Rumpke, Katja","first_name":"Katja","last_name":"Rumpke"},{"id":"287","full_name":"Kuckling, Dirk","first_name":"Dirk","last_name":"Kuckling"}],"citation":{"mla":"Killi, Naresh, et al. “Synthesis of Curcumin Derivatives via Knoevenagel Reaction Within a Continuously Driven Microfluidic Reactor Using Polymeric Networks Containing Piperidine as a Catalyst.” Gels, vol. 11, no. 4, 278, MDPI AG, 2025, doi:10.3390/gels11040278.","bibtex":"@article{Killi_Rumpke_Kuckling_2025, title={Synthesis of Curcumin Derivatives via Knoevenagel Reaction Within a Continuously Driven Microfluidic Reactor Using Polymeric Networks Containing Piperidine as a Catalyst}, volume={11}, DOI={10.3390/gels11040278}, number={4278}, journal={Gels}, publisher={MDPI AG}, author={Killi, Naresh and Rumpke, Katja and Kuckling, Dirk}, year={2025} }","ama":"Killi N, Rumpke K, Kuckling D. Synthesis of Curcumin Derivatives via Knoevenagel Reaction Within a Continuously Driven Microfluidic Reactor Using Polymeric Networks Containing Piperidine as a Catalyst. Gels. 2025;11(4). doi:10.3390/gels11040278","ieee":"N. Killi, K. Rumpke, and D. Kuckling, “Synthesis of Curcumin Derivatives via Knoevenagel Reaction Within a Continuously Driven Microfluidic Reactor Using Polymeric Networks Containing Piperidine as a Catalyst,” Gels, vol. 11, no. 4, Art. no. 278, 2025, doi: 10.3390/gels11040278.","apa":"Killi, N., Rumpke, K., & Kuckling, D. (2025). Synthesis of Curcumin Derivatives via Knoevenagel Reaction Within a Continuously Driven Microfluidic Reactor Using Polymeric Networks Containing Piperidine as a Catalyst. Gels, 11(4), Article 278. https://doi.org/10.3390/gels11040278","chicago":"Killi, Naresh, Katja Rumpke, and Dirk Kuckling. “Synthesis of Curcumin Derivatives via Knoevenagel Reaction Within a Continuously Driven Microfluidic Reactor Using Polymeric Networks Containing Piperidine as a Catalyst.” Gels 11, no. 4 (2025). https://doi.org/10.3390/gels11040278.","short":"N. Killi, K. Rumpke, D. Kuckling, Gels 11 (2025)."},"user_id":"94","volume":11,"_id":"59510","publisher":"MDPI AG","status":"public"},{"status":"public","publisher":"Elsevier BV","_id":"63830","user_id":"98419","volume":470,"citation":{"mla":"Massopo, Orlando, et al. “Influence of Dispersion Gas Flow on the Spray Characteristics and γ-Fe2O3 Nanoparticles Formation and Properties in Reference SpraySyn Burners.” Powder Technology, vol. 470, 121992, Elsevier BV, 2025, doi:10.1016/j.powtec.2025.121992.","ama":"Massopo O, Tischendorf R, Gonchikzhapov M, et al. Influence of dispersion gas flow on the spray characteristics and γ-Fe2O3 nanoparticles formation and properties in reference SpraySyn burners. Powder Technology. 2025;470. doi:10.1016/j.powtec.2025.121992","bibtex":"@article{Massopo_Tischendorf_Gonchikzhapov_Kasper_Augustin_Özer_Reddemann_Kneer_Sheikh_Mert_et al._2025, title={Influence of dispersion gas flow on the spray characteristics and γ-Fe2O3 nanoparticles formation and properties in reference SpraySyn burners}, volume={470}, DOI={10.1016/j.powtec.2025.121992}, number={121992}, journal={Powder Technology}, publisher={Elsevier BV}, author={Massopo, Orlando and Tischendorf, Ricardo and Gonchikzhapov, Munko and Kasper, Tina and Augustin, Peter and Özer, Burak and Reddemann, Manuel and Kneer, Reinhold and Sheikh, Mohammed-Ali and Mert, Aydan Akyildiz and et al.}, year={2025} }","apa":"Massopo, O., Tischendorf, R., Gonchikzhapov, M., Kasper, T., Augustin, P., Özer, B., Reddemann, M., Kneer, R., Sheikh, M.-A., Mert, A. A., Wiggers, H., & Schmid, H.-J. (2025). Influence of dispersion gas flow on the spray characteristics and γ-Fe2O3 nanoparticles formation and properties in reference SpraySyn burners. Powder Technology, 470, Article 121992. https://doi.org/10.1016/j.powtec.2025.121992","ieee":"O. Massopo et al., “Influence of dispersion gas flow on the spray characteristics and γ-Fe2O3 nanoparticles formation and properties in reference SpraySyn burners,” Powder Technology, vol. 470, Art. no. 121992, 2025, doi: 10.1016/j.powtec.2025.121992.","chicago":"Massopo, Orlando, Ricardo Tischendorf, Munko Gonchikzhapov, Tina Kasper, Peter Augustin, Burak Özer, Manuel Reddemann, et al. “Influence of Dispersion Gas Flow on the Spray Characteristics and γ-Fe2O3 Nanoparticles Formation and Properties in Reference SpraySyn Burners.” Powder Technology 470 (2025). https://doi.org/10.1016/j.powtec.2025.121992.","short":"O. Massopo, R. Tischendorf, M. Gonchikzhapov, T. Kasper, P. Augustin, B. Özer, M. Reddemann, R. Kneer, M.-A. Sheikh, A.A. Mert, H. Wiggers, H.-J. Schmid, Powder Technology 470 (2025)."},"oa":"1","year":"2025","title":"Influence of dispersion gas flow on the spray characteristics and γ-Fe2O3 nanoparticles formation and properties in reference SpraySyn burners","publication_identifier":{"issn":["0032-5910"]},"author":[{"full_name":"Massopo, Orlando","first_name":"Orlando","last_name":"Massopo"},{"first_name":"Ricardo","last_name":"Tischendorf","full_name":"Tischendorf, Ricardo"},{"full_name":"Gonchikzhapov, Munko","last_name":"Gonchikzhapov","first_name":"Munko"},{"last_name":"Kasper","first_name":"Tina","full_name":"Kasper, Tina"},{"full_name":"Augustin, Peter","last_name":"Augustin","first_name":"Peter"},{"last_name":"Özer","first_name":"Burak","full_name":"Özer, Burak"},{"full_name":"Reddemann, Manuel","first_name":"Manuel","last_name":"Reddemann"},{"full_name":"Kneer, Reinhold","last_name":"Kneer","first_name":"Reinhold"},{"full_name":"Sheikh, Mohammed-Ali","last_name":"Sheikh","first_name":"Mohammed-Ali"},{"last_name":"Mert","first_name":"Aydan Akyildiz","full_name":"Mert, Aydan Akyildiz"},{"full_name":"Wiggers, Hartmut","first_name":"Hartmut","last_name":"Wiggers"},{"last_name":"Schmid","first_name":"Hans-Joachim","full_name":"Schmid, Hans-Joachim"}],"date_updated":"2026-02-25T07:45:44Z","publication_status":"published","intvolume":" 470","article_type":"original","main_file_link":[{"open_access":"1"}],"article_number":"121992","language":[{"iso":"eng"}],"doi":"10.1016/j.powtec.2025.121992","publication":"Powder Technology","abstract":[{"text":" This study investigates the effect of dispersion gas (DG) flow on the formation and properties of maghemite (γ-Fe2O3) nanoparticles using standardized SpraySyn burners (SS1 and SS2). Several diagnostics were employed to characterize the spray and nanoparticles. \r\nIncreasing DG flow (6 - 12 slm) results in smaller droplet sizes (DS), cooler flame temperatures, shorter high-temperature droplet/particle residence times, and smaller agglomerates in the size range of 5 - 12 nm with narrower primary particle size distribution, corresponding to higher mass fractal dimensions, as supported by TEM and SMPS analysis, resulting in more compact agglomerates. BET and TEM confirmed decreasing primary particle sizes with increasing DG flow. Raman and XRD analyses predominantly identified maghemite, which shows a bimodal distribution of crystallite sizes, while SS1 samples have a greater proportion of larger crystallites.\r\nThe self-preserving size distributions of agglomerates with a geometric standard deviation of 1.5 are reached faster with increasing DG flow. The barrier effect of DG observed in SS1 leads to slower droplet combustion kinetics, higher temperatures, and delayed precursor release, which, along with downstream flow recirculation, result in significantly higher agglomeration rates outside the visible flame. SS2 demonstrates improved atomization, more stable flames, and finer, uniform nanoparticles with less carbonaceous residues (CR). Conversely, SS1 showed broader DS distributions and higher CR levels on the γ-Fe2O3 surface, especially at higher DG flow.\r\nThis work highlights the essential role of DG flow and nozzle geometry in controlling droplet evaporation, flame stability, and nanoparticle growth, offering insights for optimizing SFS and validating numerical models.\r\n","lang":"eng"}],"date_created":"2026-02-02T11:41:04Z","type":"journal_article","keyword":["Spray flame synthesis","iron oxide nanoparticle","SpraySyn burner","Dispersion gas","Coaxial atomization","HiaT-SMPS"]},{"citation":{"mla":"Alt, Christoph, et al. “Evaluating OneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to Multiple FPGAs.” Proceedings of the 13th International Workshop on OpenCL and SYCL, Association for Computing Machinery, 2025, doi:10.1145/3731125.3731131.","bibtex":"@inproceedings{Alt_Plessl_Kenter_2025, place={New York, NY, USA}, series={IWOCL ’25}, title={Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs}, DOI={10.1145/3731125.3731131}, booktitle={Proceedings of the 13th International Workshop on OpenCL and SYCL}, publisher={Association for Computing Machinery}, author={Alt, Christoph and Plessl, Christian and Kenter, Tobias}, year={2025}, collection={IWOCL ’25} }","ama":"Alt C, Plessl C, Kenter T. Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs. In: Proceedings of the 13th International Workshop on OpenCL and SYCL. IWOCL ’25. Association for Computing Machinery; 2025. doi:10.1145/3731125.3731131","ieee":"C. Alt, C. Plessl, and T. Kenter, “Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs,” 2025, doi: 10.1145/3731125.3731131.","apa":"Alt, C., Plessl, C., & Kenter, T. (2025). Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs. Proceedings of the 13th International Workshop on OpenCL and SYCL. https://doi.org/10.1145/3731125.3731131","short":"C. Alt, C. Plessl, T. Kenter, in: Proceedings of the 13th International Workshop on OpenCL and SYCL, Association for Computing Machinery, New York, NY, USA, 2025.","chicago":"Alt, Christoph, Christian Plessl, and Tobias Kenter. “Evaluating OneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to Multiple FPGAs.” In Proceedings of the 13th International Workshop on OpenCL and SYCL. IWOCL ’25. New York, NY, USA: Association for Computing Machinery, 2025. https://doi.org/10.1145/3731125.3731131."},"project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"quality_controlled":"1","place":"New York, NY, USA","oa":"1","status":"public","_id":"62066","publisher":"Association for Computing Machinery","user_id":"3145","publication":"Proceedings of the 13th International Workshop on OpenCL and SYCL","abstract":[{"text":"In the context of high-performance computing (HPC) for distributed workloads, individual field-programmable gate arrays (FPGAs) need efficient ways to exchange data, which requires network infrastructure and software abstractions. Dedicated multi-FPGA clusters provide inter-FPGA networks for direct device to device communication. The oneAPI high-level synthesis toolchain offers I/O pipes to allow user kernels to interact with the networking ports of the FPGA board. In this work, we evaluate using oneAPI I/O pipes for direct FPGA-to-FPGA communication by scaling a SYCL implementation of a Jacobi solver on up to 25 FPGAs in the Noctua 2 cluster. We see good results in weak and strong scaling experiments.","lang":"eng"}],"date_created":"2025-11-04T09:45:23Z","department":[{"_id":"27"},{"_id":"518"}],"type":"conference","keyword":["Multi-FPGA","High-level Synthesis","oneAPI","FPGA"],"author":[{"id":"100625","full_name":"Alt, Christoph","first_name":"Christoph","last_name":"Alt"},{"id":"16153","full_name":"Plessl, Christian","last_name":"Plessl","orcid":"0000-0001-5728-9982","first_name":"Christian"},{"id":"3145","full_name":"Kenter, Tobias","last_name":"Kenter","first_name":"Tobias"}],"publication_identifier":{"isbn":["9798400713606"]},"year":"2025","title":"Evaluating oneAPI I/O Pipes in a Case Study of Scaling a SYCL Jacobi Solver to multiple FPGAs","date_updated":"2025-11-04T09:47:26Z","series_title":"IWOCL ’25","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}],"doi":"10.1145/3731125.3731131"},{"citation":{"mla":"Tischendorf, Ricardo, et al., editors. “Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS).” Applications in Energy and Combustion Science, Elsevier, 2024, doi:https://doi.org/10.1016/j.jaecs.2023.100235.","ama":"Tischendorf R, Massopo O, Schmid H-J, et al., eds. Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS). Elsevier; 2024. doi:https://doi.org/10.1016/j.jaecs.2023.100235","bibtex":"@book{Tischendorf_Massopo_Schmid_Pyrmak_Dupont_Fröde_Pitsch_Kneer_2024, title={Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS)}, DOI={https://doi.org/10.1016/j.jaecs.2023.100235}, journal={Applications in Energy and Combustion Science}, publisher={Elsevier}, year={2024} }","apa":"Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS). (2024). In R. Tischendorf, O. Massopo, H.-J. Schmid, O. Pyrmak, S. Dupont, F. Fröde, H. Pitsch, & R. Kneer (Eds.), Applications in Energy and Combustion Science. Elsevier. https://doi.org/10.1016/j.jaecs.2023.100235","ieee":"R. Tischendorf et al., Eds., Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS). Elsevier, 2024.","chicago":"Tischendorf, Ricardo, Orlando Massopo, Hans-Joachim Schmid, Olek Pyrmak, Sophie Dupont, Fabian Fröde, Heinz Pitsch, and Reinhold Kneer, eds. Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS). Applications in Energy and Combustion Science. Elsevier, 2024. https://doi.org/10.1016/j.jaecs.2023.100235.","short":"R. Tischendorf, O. Massopo, H.-J. Schmid, O. Pyrmak, S. Dupont, F. Fröde, H. Pitsch, R. Kneer, eds., Maghemite Nanoparticles Synthesis via Spray Flame Synthesis and Particle Characterization by Hole in a Tube Sampling and Scanning Mobility Particle Sizing (HIAT-SMPS), Elsevier, 2024."},"publisher":"Elsevier","_id":"51133","ddc":["660"],"user_id":"98419","editor":[{"full_name":"Tischendorf, Ricardo","last_name":"Tischendorf","first_name":"Ricardo","id":"67002"},{"full_name":"Massopo, Orlando","first_name":"Orlando","last_name":"Massopo","id":"98419"},{"first_name":"Hans-Joachim","last_name":"Schmid","orcid":"000-0001-8590-1921","full_name":"Schmid, Hans-Joachim","id":"464"},{"last_name":"Pyrmak","first_name":"Olek","full_name":"Pyrmak, Olek"},{"full_name":"Dupont, Sophie","first_name":"Sophie","last_name":"Dupont"},{"full_name":"Fröde, Fabian","last_name":"Fröde","first_name":"Fabian"},{"full_name":"Pitsch, Heinz","last_name":"Pitsch","first_name":"Heinz"},{"full_name":"Kneer, Reinhold","last_name":"Kneer","first_name":"Reinhold"}],"status":"public","has_accepted_license":"1","date_created":"2024-02-05T12:02:57Z","keyword":["Flame Spray Pyrolysis","SpraySyn2","Spray flame synthesis","Maghemite nanoparticles","Gas to particle-conversion","Hole in a tube sampling"],"type":"journal_editor","department":[{"_id":"150"}],"publication":"Applications in Energy and Combustion Science","abstract":[{"lang":"eng","text":"In order to standardize spray flame synthesis (SFS) studies, intensive work has been done in recent years on the design of burner types. Thus, in 2019, the so-called SpraySyn1 burner was introduced (SS1), which was subsequently characterized in numerical and experimental studies. Based on this research, a modification of the nozzle design was proposed, which has now been considered in the successor model, SpraySyn2 (SS2). As little is known about the effect of the nozzle adaptation on the particle formation, we operated both burners under identical operating conditions to produce maghemite. The final powder comparison showed that SS2 yielded considerable higher specific surface areas (associated with smaller primary particle sizes), lower polydispersity, and higher phase purity. To obtain further information on the size distributions of aggregates and agglomerates generated by SS2, aerosol samples were extracted by hole in a tube (HIAT) sampling and characterized by scanning mobility particle sizing (SMPS). Samples were extracted along the centerline at different heights above the burner (HAB) above the visible flame tip (>7 cm), and quenching experiments were performed to extract the aerosol samples at different dilution rates. Thereby, it was demonstrated that performing detailed quenching experiments is crucial for obtaining representative HIAT-SMPS data. In particular, agglomerates/aggregate sizes were overestimated by up to ~70 % if samples were not sufficiently diluted. If sufficient dilution was applied, distribution widths and mean particle mobility diameters were determined with high accuracy (sample standard derivation <5 %). Our data suggested the evolution of primary particle sizes was mostly completed <7 cm HAB and it was shown aggregates/agglomerates present above the visible flame were compact in structure (non- fractal). The mean diameter of the particle ensemble grew along the centerline from 6.9 nm (7 cm) to 11.4 nm (15 cm), while distribution widths grew from 1.42 to 1.52."}],"main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S2666352X23001243?ref=cra_js_challenge&fr=RR-1"}],"language":[{"iso":"eng"}],"doi":"https://doi.org/10.1016/j.jaecs.2023.100235","title":"Maghemite nanoparticles synthesis via spray flame synthesis and particle characterization by hole in a tube sampling and scanning mobility particle sizing (HIAT-SMPS)","year":"2024","date_updated":"2024-02-05T12:25:00Z","publication_status":"published"},{"title":"Large eddy simulation of iron oxide formation in a laboratory spray flame","year":"2023","publication_status":"published","date_updated":"2024-02-05T12:38:43Z","main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S2666352X23000808"}],"language":[{"iso":"eng"}],"doi":"https://doi.org/10.1016/j.jaecs.2023.100191","publication":"Applications in Energy and Combustion Science","abstract":[{"lang":"eng","text":"Iron oxide nanoparticles are very interesting for many applications in different industrial sectors. A promising\r\nprocess to manufacture these nanoparticles is flame spray pyrolysis (FSP). A lack of understanding of the\r\nindividual sub-processes in FSP makes it challenging to tailor nanoparticle properties. This work provides\r\ninsights into the formation of iron oxide nanoparticles in a turbulent spray flame using Large Eddy Simulations\r\n(LES), which are based on a comprehensive model, including customized submodels. Highlights are the\r\nadaption of a turbulent combustion model and a bivariate hybrid method of moments for modeling nanoparticle\r\ndynamics. The work focuses on the SpraySyn burner, which is a standardized laboratory burner and was\r\noperated with a precursor-solvent mixture of ethanol and iron(III) nitrate nonahydrate. For studying the\r\nrelevance of precursor chemistry, LES using an evaporation-limited precursor chemistry model is compared\r\nwith a model that includes detailed iron chemistry. A further novelty is the inclusion of adsorption in the\r\nsimulation, which defines a third model for comparison. Sufficient validation is achieved for the undoped LES\r\nusing experimental data from the literature. A strong impact of the detailed iron chemistry and adsorption\r\nis found on the precursor consumption and the aggregate and primary particle formation. Comparing the\r\nparticle diameters with experimental measurements from the literature and data generated for this work is\r\nfound unsuitable to asses the precursor chemistry model and revealed an urgent need for future experimental\r\nand numerical research. This work serves as a step forward in realizing a reliable model."}],"date_created":"2024-02-05T12:17:35Z","keyword":["Flame spray pyrolysis","Iron oxide formation","Large eddy simulation","Method of moments","SpraySyn"],"type":"journal_editor","department":[{"_id":"150"}],"status":"public","has_accepted_license":"1","_id":"51136","publisher":"Elsevier","user_id":"98419","editor":[{"first_name":"Fabian ","last_name":"Fröde","full_name":"Fröde, Fabian "},{"last_name":"Grenga","first_name":"Temistocle ","full_name":"Grenga, Temistocle "},{"full_name":"Pitsch, Heinz ","last_name":"Pitsch","first_name":"Heinz "},{"last_name":"Dupont","first_name":"Sophie","full_name":"Dupont, Sophie"},{"first_name":"Reinhold","last_name":"Kneer","full_name":"Kneer, Reinhold"},{"id":"67002","full_name":"Tischendorf, Ricardo","first_name":"Ricardo","last_name":"Tischendorf"},{"id":"98419","full_name":"Massopo, Orlando","first_name":"Orlando","last_name":"Massopo"},{"orcid":"000-0001-8590-1921","first_name":"Hans-Joachim","last_name":"Schmid","full_name":"Schmid, Hans-Joachim","id":"464"}],"citation":{"ama":"Fröde F, Grenga T, Pitsch H, et al., eds. Large Eddy Simulation of Iron Oxide Formation in a Laboratory Spray Flame. Elsevier; 2023. doi:https://doi.org/10.1016/j.jaecs.2023.100191","bibtex":"@book{Fröde_Grenga_Pitsch_Dupont_Kneer_Tischendorf_Massopo_Schmid_2023, title={Large eddy simulation of iron oxide formation in a laboratory spray flame}, DOI={https://doi.org/10.1016/j.jaecs.2023.100191}, journal={Applications in Energy and Combustion Science}, publisher={Elsevier}, year={2023} }","mla":"Fröde, Fabian, et al., editors. “Large Eddy Simulation of Iron Oxide Formation in a Laboratory Spray Flame.” Applications in Energy and Combustion Science, Elsevier, 2023, doi:https://doi.org/10.1016/j.jaecs.2023.100191.","chicago":"Fröde, Fabian , Temistocle Grenga, Heinz Pitsch, Sophie Dupont, Reinhold Kneer, Ricardo Tischendorf, Orlando Massopo, and Hans-Joachim Schmid, eds. Large Eddy Simulation of Iron Oxide Formation in a Laboratory Spray Flame. Applications in Energy and Combustion Science. Elsevier, 2023. https://doi.org/10.1016/j.jaecs.2023.100191.","short":"F. Fröde, T. Grenga, H. Pitsch, S. Dupont, R. Kneer, R. Tischendorf, O. Massopo, H.-J. Schmid, eds., Large Eddy Simulation of Iron Oxide Formation in a Laboratory Spray Flame, Elsevier, 2023.","apa":"Large eddy simulation of iron oxide formation in a laboratory spray flame. (2023). In F. Fröde, T. Grenga, H. Pitsch, S. Dupont, R. Kneer, R. Tischendorf, O. Massopo, & H.-J. Schmid (Eds.), Applications in Energy and Combustion Science. Elsevier. https://doi.org/10.1016/j.jaecs.2023.100191","ieee":"F. Fröde et al., Eds., Large eddy simulation of iron oxide formation in a laboratory spray flame. Elsevier, 2023."}},{"department":[{"_id":"150"},{"_id":"728"}],"keyword":["Absolute particle concentration","Flame Spray Pyrolysis","SMPS","Mass Spectrometry"],"type":"conference_abstract","date_created":"2024-02-05T12:45:55Z","citation":{"chicago":"Massopo, Orlando, Hans-Joachim Schmid, Munko Gonchikzhapov, and Tina Kasper. “Nanoparticle Concentration Measurement in Flame Spray Pyrolysis (Poster),” 2023.","short":"O. Massopo, H.-J. Schmid, M. Gonchikzhapov, T. Kasper, in: 2023.","apa":"Massopo, O., Schmid, H.-J., Gonchikzhapov, M., & Kasper, T. (2023). Nanoparticle Concentration Measurement in Flame Spray Pyrolysis (Poster). European Aerosol Conference, Málaga, Spain .","ieee":"O. Massopo, H.-J. Schmid, M. Gonchikzhapov, and T. Kasper, “Nanoparticle Concentration Measurement in Flame Spray Pyrolysis (Poster),” presented at the European Aerosol Conference, Málaga, Spain , 2023.","ama":"Massopo O, Schmid H-J, Gonchikzhapov M, Kasper T. Nanoparticle Concentration Measurement in Flame Spray Pyrolysis (Poster). In: ; 2023.","bibtex":"@inproceedings{Massopo_Schmid_Gonchikzhapov_Kasper_2023, title={Nanoparticle Concentration Measurement in Flame Spray Pyrolysis (Poster)}, author={Massopo, Orlando and Schmid, Hans-Joachim and Gonchikzhapov, Munko and Kasper, Tina}, year={2023} }","mla":"Massopo, Orlando, et al. Nanoparticle Concentration Measurement in Flame Spray Pyrolysis (Poster). 2023."},"user_id":"98419","_id":"51145","language":[{"iso":"eng"}],"date_updated":"2024-02-05T12:46:11Z","author":[{"last_name":"Massopo","first_name":"Orlando","full_name":"Massopo, Orlando","id":"98419"},{"id":"464","full_name":"Schmid, Hans-Joachim","orcid":"000-0001-8590-1921","first_name":"Hans-Joachim","last_name":"Schmid"},{"id":"94996","full_name":"Gonchikzhapov, Munko","orcid":"https://orcid.org/0000-0002-7773-047X","first_name":"Munko","last_name":"Gonchikzhapov"},{"last_name":"Kasper","orcid":"0000-0003-3993-5316 ","first_name":"Tina","full_name":"Kasper, Tina","id":"94562"}],"conference":{"end_date":"2023-09-08","location":"Málaga, Spain ","start_date":"2023-09-03","name":"European Aerosol Conference"},"year":"2023","title":"Nanoparticle Concentration Measurement in Flame Spray Pyrolysis (Poster)","status":"public"},{"oa":"1","place":"Laboratory for Freeform Fabrication and University of Texas, Austin","quality_controlled":"1","citation":{"mla":"Neitzel, Fabian, et al. “Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis.” Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium, edited by Joseph Beaman, 2023, doi:https://doi.org/10.26153/tsw/50926.","ama":"Neitzel F, Kletetzka I, Schmid H-J. Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis. In: Beaman J, ed. Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium. ; 2023. doi:https://doi.org/10.26153/tsw/50926","bibtex":"@inproceedings{Neitzel_Kletetzka_Schmid_2023, place={Laboratory for Freeform Fabrication and University of Texas, Austin}, title={Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis}, DOI={https://doi.org/10.26153/tsw/50926}, booktitle={Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium}, author={Neitzel, Fabian and Kletetzka, Ivo and Schmid, Hans-Joachim}, editor={Beaman, Joseph}, year={2023} }","apa":"Neitzel, F., Kletetzka, I., & Schmid, H.-J. (2023). Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis. In J. Beaman (Ed.), Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium. https://doi.org/10.26153/tsw/50926","ieee":"F. Neitzel, I. Kletetzka, and H.-J. Schmid, “Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis,” in Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium, Austin, 2023, doi: https://doi.org/10.26153/tsw/50926.","chicago":"Neitzel, Fabian, Ivo Kletetzka, and Hans-Joachim Schmid. “Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis.” In Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium, edited by Joseph Beaman. Laboratory for Freeform Fabrication and University of Texas, Austin, 2023. https://doi.org/10.26153/tsw/50926.","short":"F. Neitzel, I. Kletetzka, H.-J. Schmid, in: J. Beaman (Ed.), Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium, Laboratory for Freeform Fabrication and University of Texas, Austin, 2023."},"user_id":"72307","editor":[{"last_name":"Beaman","first_name":"Joseph","full_name":"Beaman, Joseph"}],"_id":"46862","status":"public","conference":{"location":"Austin","start_date":"2023-08-14","name":"34th Annual International Solid Freeform Fabrication Symposium","end_date":"2023-08-16"},"keyword":["Additive Manufacturing","Laser Sintering","Flame Retardant","Polyamide 12"],"type":"conference","department":[{"_id":"150"},{"_id":"219"},{"_id":"624"},{"_id":"9"}],"date_created":"2023-09-07T12:11:51Z","abstract":[{"text":"The high flammability of components manufactured by laser sintering (LS) using standard polyamide 12 (PA12) powder still severely restricts their use in industries such as electronics, aviation, and transportation. A key factor for the further establishment of LS is the expansion of the material portfolio with, for example, refreshable and halogen-free flame-retardant (FR) powder materials. Accordingly, various halogen-free FRs are investigated in this work and evaluated with respect to their use in LS. First, their decomposition behavior and mode of action are examined. Subsequently, the additives are dry blended with PA12 to investigate properties relevant for LS, such as particle morphology, thermal behavior and melt viscosity. Afterwards, test specimens for UL94 vertical flame-retardancy tests are produced by processing the dry blends on an EOS P3 LS system. Finally, the process stability of the process-aged powder blends is investigated by again examining the thermal behavior and melt viscosity.","lang":"eng"}],"publication":"Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium","doi":"https://doi.org/10.26153/tsw/50926","main_file_link":[{"url":"https://www.sffsymposium.org/","open_access":"1"}],"language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2024-04-02T12:43:51Z","title":"Halogen-Free Flame Retardant Powder Materials for Laser Sintering: Evaluation and Process Stability Analysis","year":"2023","author":[{"id":"72307","last_name":"Neitzel","orcid":"0009-0004-8412-3645 ","first_name":"Fabian","full_name":"Neitzel, Fabian"},{"last_name":"Kletetzka","first_name":"Ivo","full_name":"Kletetzka, Ivo","id":"50769"},{"id":"464","last_name":"Schmid","orcid":"000-0001-8590-1921","first_name":"Hans-Joachim","full_name":"Schmid, Hans-Joachim"}]},{"publication":"Applications in Energy and Combustion Science","date_created":"2023-08-22T13:26:37Z","type":"journal_article","keyword":["Nanoparticle synthesis","Flame spray pyrolysis","SpraySyn burner","Flame structure","Species distribution","Temperature distribution"],"department":[{"_id":"43"}],"year":"2023","title":"Thermal and chemical structure of ethanol and 2-ethylhexanoic acid/ethanol SpraySyn flames","author":[{"last_name":"Gonchikzhapov","orcid":"https://orcid.org/0000-0002-7773-047X","first_name":"Munko","full_name":"Gonchikzhapov, Munko","id":"94996"},{"id":"94562","last_name":"Kasper","first_name":"Tina","orcid":"0000-0003-3993-5316 ","full_name":"Kasper, Tina"}],"publication_identifier":{"issn":["2666-352X"]},"date_updated":"2023-08-24T08:55:26Z","publication_status":"published","intvolume":" 15","main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S2666352X23000638","open_access":"1"}],"article_number":"100174","language":[{"iso":"eng"}],"doi":"10.1016/j.jaecs.2023.100174","citation":{"bibtex":"@article{Gonchikzhapov_Kasper_2023, title={Thermal and chemical structure of ethanol and 2-ethylhexanoic acid/ethanol SpraySyn flames}, volume={15}, DOI={10.1016/j.jaecs.2023.100174}, number={100174}, journal={Applications in Energy and Combustion Science}, publisher={Elsevier BV}, author={Gonchikzhapov, Munko and Kasper, Tina}, year={2023} }","ama":"Gonchikzhapov M, Kasper T. Thermal and chemical structure of ethanol and 2-ethylhexanoic acid/ethanol SpraySyn flames. Applications in Energy and Combustion Science. 2023;15. doi:10.1016/j.jaecs.2023.100174","mla":"Gonchikzhapov, Munko, and Tina Kasper. “Thermal and Chemical Structure of Ethanol and 2-Ethylhexanoic Acid/Ethanol SpraySyn Flames.” Applications in Energy and Combustion Science, vol. 15, 100174, Elsevier BV, 2023, doi:10.1016/j.jaecs.2023.100174.","chicago":"Gonchikzhapov, Munko, and Tina Kasper. “Thermal and Chemical Structure of Ethanol and 2-Ethylhexanoic Acid/Ethanol SpraySyn Flames.” Applications in Energy and Combustion Science 15 (2023). https://doi.org/10.1016/j.jaecs.2023.100174.","short":"M. Gonchikzhapov, T. Kasper, Applications in Energy and Combustion Science 15 (2023).","ieee":"M. Gonchikzhapov and T. Kasper, “Thermal and chemical structure of ethanol and 2-ethylhexanoic acid/ethanol SpraySyn flames,” Applications in Energy and Combustion Science, vol. 15, Art. no. 100174, 2023, doi: 10.1016/j.jaecs.2023.100174.","apa":"Gonchikzhapov, M., & Kasper, T. (2023). Thermal and chemical structure of ethanol and 2-ethylhexanoic acid/ethanol SpraySyn flames. Applications in Energy and Combustion Science, 15, Article 100174. https://doi.org/10.1016/j.jaecs.2023.100174"},"oa":"1","status":"public","_id":"46637","publisher":"Elsevier BV","user_id":"94996","volume":15},{"date_created":"2024-02-05T12:59:39Z","place":"Nürnberg","keyword":["Flame Stability","Particle Sample Extraction","SMPS","Impurities"],"type":"conference_abstract","department":[{"_id":"150"}],"citation":{"apa":"Massopo, O., Tischendorf, R., Schmid, H.-J., Fröde, F., Grenga, T., Pitsch, H., Bieber, M., Reddemann, M., & Kneer, R. (2023). Influence of atomization on the particle formation in spray flame pyrolysis (Presentation). International Congress of Particle Technology, Nürnberg.","ieee":"O. Massopo et al., “Influence of atomization on the particle formation in spray flame pyrolysis (Presentation),” presented at the International Congress of Particle Technology, Nürnberg, 2023.","short":"O. Massopo, R. Tischendorf, H.-J. Schmid, F. Fröde, T. Grenga, H. Pitsch, M. Bieber, M. Reddemann, R. Kneer, in: International Congress of Particle Technology, Nürnberg, 2023.","chicago":"Massopo, Orlando, Ricardo Tischendorf, Hans-Joachim Schmid, Fabian Fröde, Temistocle Grenga, Heinz Pitsch, Malte Bieber, Manuel Reddemann, and Reinhold Kneer. “Influence of Atomization on the Particle Formation in Spray Flame Pyrolysis (Presentation).” Nürnberg: International Congress of Particle Technology, 2023.","mla":"Massopo, Orlando, et al. Influence of Atomization on the Particle Formation in Spray Flame Pyrolysis (Presentation). International Congress of Particle Technology, 2023.","ama":"Massopo O, Tischendorf R, Schmid H-J, et al. Influence of atomization on the particle formation in spray flame pyrolysis (Presentation). In: International Congress of Particle Technology; 2023.","bibtex":"@inproceedings{Massopo_Tischendorf_Schmid_Fröde_Grenga_Pitsch_Bieber_Reddemann_Kneer_2023, place={Nürnberg}, title={Influence of atomization on the particle formation in spray flame pyrolysis (Presentation)}, publisher={International Congress of Particle Technology}, author={Massopo, Orlando and Tischendorf, Ricardo and Schmid, Hans-Joachim and Fröde, Fabian and Grenga, Temistocle and Pitsch, Heinz and Bieber, Malte and Reddemann, Manuel and Kneer, Reinhold}, year={2023} }"},"publisher":"International Congress of Particle Technology","_id":"51147","language":[{"iso":"eng"}],"user_id":"98419","status":"public","title":"Influence of atomization on the particle formation in spray flame pyrolysis (Presentation)","year":"2023","author":[{"first_name":"Orlando","last_name":"Massopo","full_name":"Massopo, Orlando","id":"98419"},{"id":"67002","full_name":"Tischendorf, Ricardo","first_name":"Ricardo","last_name":"Tischendorf"},{"first_name":"Hans-Joachim","orcid":"000-0001-8590-1921","last_name":"Schmid","full_name":"Schmid, Hans-Joachim","id":"464"},{"full_name":"Fröde, Fabian","last_name":"Fröde","first_name":"Fabian"},{"full_name":"Grenga, Temistocle","first_name":"Temistocle","last_name":"Grenga"},{"first_name":"Heinz","last_name":"Pitsch","full_name":"Pitsch, Heinz"},{"full_name":"Bieber, Malte","first_name":"Malte","last_name":"Bieber"},{"full_name":"Reddemann, Manuel","first_name":"Manuel","last_name":"Reddemann"},{"full_name":"Kneer, Reinhold","last_name":"Kneer","first_name":"Reinhold"}],"conference":{"start_date":"2023-09-26","name":"International Congress of Particle Technology","location":"Nürnberg","end_date":"2023-09-28"},"date_updated":"2025-09-18T10:49:39Z"},{"department":[{"_id":"150"},{"_id":"9"}],"type":"conference_abstract","keyword":["clean air","harmful gas removal","denitrification","SCR","catalytic filtration","nanoparticles","flame-synthesis"],"date_created":"2023-01-18T14:42:17Z","file":[{"date_created":"2023-01-18T14:41:47Z","creator":"jludwig","file_id":"37425","success":1,"content_type":"application/pdf","relation":"main_file","date_updated":"2023-01-18T14:41:47Z","file_name":"Abstract_Particle_Gas.pdf","file_size":130697,"access_level":"closed"}],"citation":{"mla":"Beimdiek, Janis, and Hans-Joachim Schmid. A Combined Flue Gas Cleaning System with a Novel Entrained Flow SCR Using an Online Synthesized Catalyst (Poster). 2022.","ama":"Beimdiek J, Schmid H-J. A combined flue gas cleaning system with a novel entrained flow SCR using an online synthesized catalyst (Poster). In: ; 2022.","bibtex":"@inproceedings{Beimdiek_Schmid_2022, title={A combined flue gas cleaning system with a novel entrained flow SCR using an online synthesized catalyst (Poster)}, author={Beimdiek, Janis and Schmid, Hans-Joachim}, year={2022} }","apa":"Beimdiek, J., & Schmid, H.-J. (2022). A combined flue gas cleaning system with a novel entrained flow SCR using an online synthesized catalyst (Poster). 1st International Workshop on Reacting Particle-Gas Systems, Bochum.","ieee":"J. Beimdiek and H.-J. Schmid, “A combined flue gas cleaning system with a novel entrained flow SCR using an online synthesized catalyst (Poster),” presented at the 1st International Workshop on Reacting Particle-Gas Systems, Bochum, 2022.","short":"J. Beimdiek, H.-J. Schmid, in: 2022.","chicago":"Beimdiek, Janis, and Hans-Joachim Schmid. “A Combined Flue Gas Cleaning System with a Novel Entrained Flow SCR Using an Online Synthesized Catalyst (Poster),” 2022."},"file_date_updated":"2023-01-18T14:41:47Z","user_id":"45788","ddc":["660"],"_id":"37424","language":[{"iso":"eng"}],"has_accepted_license":"1","date_updated":"2023-03-14T08:26:40Z","author":[{"first_name":"Janis","last_name":"Beimdiek","full_name":"Beimdiek, Janis","id":"45788"},{"last_name":"Schmid","first_name":"Hans-Joachim","orcid":"000-0001-8590-1921","full_name":"Schmid, Hans-Joachim","id":"464"}],"conference":{"location":"Bochum","name":"1st International Workshop on Reacting Particle-Gas Systems","start_date":"2022-06-08","end_date":"2022-06-09"},"year":"2022","status":"public","title":"A combined flue gas cleaning system with a novel entrained flow SCR using an online synthesized catalyst (Poster)"},{"citation":{"ama":"Beimdiek J, Schmid H-J. Novel entrained flow SCR using online synthesized catalyst particles (Poster). In: ; 2022.","bibtex":"@inproceedings{Beimdiek_Schmid_2022, title={Novel entrained flow SCR using online synthesized catalyst particles (Poster)}, author={Beimdiek, Janis and Schmid, Hans-Joachim}, year={2022} }","mla":"Beimdiek, Janis, and Hans-Joachim Schmid. Novel Entrained Flow SCR Using Online Synthesized Catalyst Particles (Poster). 2022.","chicago":"Beimdiek, Janis, and Hans-Joachim Schmid. “Novel Entrained Flow SCR Using Online Synthesized Catalyst Particles (Poster),” 2022.","short":"J. Beimdiek, H.-J. Schmid, in: 2022.","apa":"Beimdiek, J., & Schmid, H.-J. (2022). Novel entrained flow SCR using online synthesized catalyst particles (Poster). 13th World Filtration Congress, San Diego.","ieee":"J. Beimdiek and H.-J. Schmid, “Novel entrained flow SCR using online synthesized catalyst particles (Poster),” presented at the 13th World Filtration Congress, San Diego, 2022."},"file_date_updated":"2023-02-01T09:25:32Z","date_created":"2023-01-18T15:10:06Z","file":[{"file_id":"41352","content_type":"application/pdf","success":1,"relation":"main_file","date_updated":"2023-02-01T09:25:32Z","file_name":"Abstract_Poster_WFC2022.pdf","access_level":"closed","file_size":98157,"date_created":"2023-02-01T09:25:32Z","creator":"jludwig"}],"department":[{"_id":"150"},{"_id":"9"}],"type":"conference_abstract","keyword":["clean air","harmful gas removal","denitrification","SCR","catalytic filtration","nanoparticles","flame-synthesis"],"author":[{"id":"45788","full_name":"Beimdiek, Janis","first_name":"Janis","last_name":"Beimdiek"},{"first_name":"Hans-Joachim","orcid":"000-0001-8590-1921","last_name":"Schmid","full_name":"Schmid, Hans-Joachim","id":"464"}],"conference":{"location":"San Diego","name":"13th World Filtration Congress","start_date":"2022-10-05","end_date":"2022-10-09"},"status":"public","year":"2022","title":"Novel entrained flow SCR using online synthesized catalyst particles (Poster)","has_accepted_license":"1","date_updated":"2023-03-14T08:28:49Z","_id":"37432","language":[{"iso":"eng"}],"user_id":"45788","ddc":["660"]},{"user_id":"64665","_id":"22309","language":[{"iso":"eng"}],"publisher":"IEEE","page":"384-389","date_updated":"2022-01-06T06:55:31Z","conference":{"end_date":"2021-07-09","name":"IEEE Computer Society Annual Symposium on VLSI","start_date":"2021-07-07","location":"Tampa, Florida USA (Virtual)"},"author":[{"full_name":"Awais, Muhammad","last_name":"Awais","orcid":"https://orcid.org/0000-0003-4148-2969","first_name":"Muhammad","id":"64665"},{"full_name":"Platzner, Marco","last_name":"Platzner","first_name":"Marco"}],"year":"2021","status":"public","title":"MCTS-Based Synthesis Towards Efficient Approximate Accelerators","department":[{"_id":"78"}],"keyword":["Approximate computing","Design space exploration","Accelerator synthesis"],"type":"conference","date_created":"2021-06-14T14:05:17Z","abstract":[{"text":"Approximate computing (AC) has acquired significant maturity in recent years as a promising approach to obtain energy and area-efficient hardware. Automated approximate accelerator synthesis involves a great deal of complexity on the size of design space which exponentially grows with the number of possible approximations. Design space exploration of approximate accelerator synthesis is usually targeted via heuristic-based search methods. The majority of existing frameworks prune a large part of the design space using a greedy-based approach to keep the problem tractable. Therefore, they result in inferior solutions since many potential solutions are neglected in the pruning process without the possibility of backtracking of removed approximate instances. In this paper, we address the aforementioned issue by adopting Monte Carlo Tree Search (MCTS), as an efficient stochastic learning-based search algorithm, in the context of automated synthesis of approximate accelerators. This enables the synthesis frameworks to deeply subsamples the design space of approximate accelerator synthesis toward most promising approximate instances based on the required performance goals, i.e., power consumption, area, or/and delay. We investigated the challenges of providing an efficient open-source framework that benefits analytical and search-based approximation techniques simultaneously to both speed up the synthesis runtime and improve the quality of obtained results. Besides, we studied the utilization of machine learning algorithms to improve the performance of several critical steps, i.e., accelerator quality testing, in the synthesis framework. The proposed framework can help the community to rapidly generate efficient approximate accelerators in a reasonable runtime.","lang":"eng"}],"citation":{"apa":"Awais, M., & Platzner, M. (2021). MCTS-Based Synthesis Towards Efficient Approximate Accelerators. Proceedings of IEEE Computer Society Annual Symposium on VLSI, 384–389.","ieee":"M. Awais and M. Platzner, “MCTS-Based Synthesis Towards Efficient Approximate Accelerators,” in Proceedings of IEEE Computer Society Annual Symposium on VLSI, Tampa, Florida USA (Virtual), 2021, pp. 384–389.","short":"M. Awais, M. Platzner, in: Proceedings of IEEE Computer Society Annual Symposium on VLSI, IEEE, 2021, pp. 384–389.","chicago":"Awais, Muhammad, and Marco Platzner. “MCTS-Based Synthesis Towards Efficient Approximate Accelerators.” In Proceedings of IEEE Computer Society Annual Symposium on VLSI, 384–89. IEEE, 2021.","mla":"Awais, Muhammad, and Marco Platzner. “MCTS-Based Synthesis Towards Efficient Approximate Accelerators.” Proceedings of IEEE Computer Society Annual Symposium on VLSI, IEEE, 2021, pp. 384–89.","ama":"Awais M, Platzner M. MCTS-Based Synthesis Towards Efficient Approximate Accelerators. In: Proceedings of IEEE Computer Society Annual Symposium on VLSI. IEEE; 2021:384-389.","bibtex":"@inproceedings{Awais_Platzner_2021, title={MCTS-Based Synthesis Towards Efficient Approximate Accelerators}, booktitle={Proceedings of IEEE Computer Society Annual Symposium on VLSI}, publisher={IEEE}, author={Awais, Muhammad and Platzner, Marco}, year={2021}, pages={384–389} }"},"publication":"Proceedings of IEEE Computer Society Annual Symposium on VLSI"},{"status":"public","user_id":"49051","volume":28,"page":"2084 - 2088","_id":"17358","publisher":"IEEE","funded_apc":"1","quality_controlled":"1","project":[{"name":"SFB 901 - Subproject B4","_id":"12"},{"name":"SFB 901 - Project Area B","_id":"3"},{"_id":"1","name":"SFB 901"}],"citation":{"ieee":"L. M. Witschen, T. Wiersema, and M. Platzner, “Proof-carrying Approximate Circuits,” IEEE Transactions On Very Large Scale Integration Systems, vol. 28, no. 9, pp. 2084–2088, 2020.","apa":"Witschen, L. M., Wiersema, T., & Platzner, M. (2020). Proof-carrying Approximate Circuits. IEEE Transactions On Very Large Scale Integration Systems, 28(9), 2084–2088. https://doi.org/10.1109/TVLSI.2020.3008061","mla":"Witschen, Linus Matthias, et al. “Proof-Carrying Approximate Circuits.” IEEE Transactions On Very Large Scale Integration Systems, vol. 28, no. 9, IEEE, 2020, pp. 2084–88, doi:10.1109/TVLSI.2020.3008061.","bibtex":"@article{Witschen_Wiersema_Platzner_2020, title={Proof-carrying Approximate Circuits}, volume={28}, DOI={10.1109/TVLSI.2020.3008061}, number={9}, journal={IEEE Transactions On Very Large Scale Integration Systems}, publisher={IEEE}, author={Witschen, Linus Matthias and Wiersema, Tobias and Platzner, Marco}, year={2020}, pages={2084–2088} }","short":"L.M. Witschen, T. Wiersema, M. Platzner, IEEE Transactions On Very Large Scale Integration Systems 28 (2020) 2084–2088.","ama":"Witschen LM, Wiersema T, Platzner M. Proof-carrying Approximate Circuits. IEEE Transactions On Very Large Scale Integration Systems. 2020;28(9):2084-2088. doi:10.1109/TVLSI.2020.3008061","chicago":"Witschen, Linus Matthias, Tobias Wiersema, and Marco Platzner. “Proof-Carrying Approximate Circuits.” IEEE Transactions On Very Large Scale Integration Systems 28, no. 9 (2020): 2084–88. https://doi.org/10.1109/TVLSI.2020.3008061."},"publication_status":"published","date_updated":"2022-01-06T06:53:09Z","article_type":"original","intvolume":" 28","year":"2020","title":"Proof-carrying Approximate Circuits","author":[{"first_name":"Linus Matthias","last_name":"Witschen","full_name":"Witschen, Linus Matthias","id":"49051"},{"id":"3118","full_name":"Wiersema, Tobias","first_name":"Tobias","last_name":"Wiersema"},{"full_name":"Platzner, Marco","first_name":"Marco","last_name":"Platzner","id":"398"}],"publication_identifier":{"issn":["1063-8210"],"eissn":["1557-9999"]},"doi":"10.1109/TVLSI.2020.3008061","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Approximate circuits trade-off computational accuracy against improvements in hardware area, delay, or energy consumption. IP core vendors who wish to create such circuits need to convince consumers of the resulting approximation quality. As a solution we propose proof-carrying approximate circuits: The vendor creates an approximate IP core together with a certificate that proves the approximation quality. The proof certificate is bundled with the approximate IP core and sent off to the consumer. The consumer can formally verify the approximation quality of the IP core at a fraction of the typical computational cost for formal verification. In this paper, we first make the case for proof-carrying approximate circuits and then demonstrate the feasibility of the approach by a set of synthesis experiments using an exemplary approximation framework."}],"publication":"IEEE Transactions On Very Large Scale Integration Systems","issue":"9","keyword":["Approximate circuit synthesis","approximate computing","error metrics","formal verification","proof-carrying hardware"],"type":"journal_article","department":[{"_id":"78"}],"date_created":"2020-07-06T11:21:30Z"},{"status":"public","user_id":"15278","_id":"21632","quality_controlled":"1","project":[{"_id":"52","name":"Computing Resources Provided by the Paderborn Center for Parallel Computing"}],"citation":{"ieee":"M. Meyer, T. Kenter, and C. Plessl, “Evaluating FPGA Accelerator Performance with a Parameterized OpenCL Adaptation of Selected Benchmarks of the HPCChallenge Benchmark Suite,” 2020, doi: 10.1109/h2rc51942.2020.00007.","mla":"Meyer, Marius, et al. “Evaluating FPGA Accelerator Performance with a Parameterized OpenCL Adaptation of Selected Benchmarks of the HPCChallenge Benchmark Suite.” 2020 IEEE/ACM International Workshop on Heterogeneous High-Performance Reconfigurable Computing (H2RC), 2020, doi:10.1109/h2rc51942.2020.00007.","apa":"Meyer, M., Kenter, T., & Plessl, C. (2020). Evaluating FPGA Accelerator Performance with a Parameterized OpenCL Adaptation of Selected Benchmarks of the HPCChallenge Benchmark Suite. 2020 IEEE/ACM International Workshop on Heterogeneous High-Performance Reconfigurable Computing (H2RC). https://doi.org/10.1109/h2rc51942.2020.00007","bibtex":"@inproceedings{Meyer_Kenter_Plessl_2020, title={Evaluating FPGA Accelerator Performance with a Parameterized OpenCL Adaptation of Selected Benchmarks of the HPCChallenge Benchmark Suite}, DOI={10.1109/h2rc51942.2020.00007}, booktitle={2020 IEEE/ACM International Workshop on Heterogeneous High-performance Reconfigurable Computing (H2RC)}, author={Meyer, Marius and Kenter, Tobias and Plessl, Christian}, year={2020} }","ama":"Meyer M, Kenter T, Plessl C. Evaluating FPGA Accelerator Performance with a Parameterized OpenCL Adaptation of Selected Benchmarks of the HPCChallenge Benchmark Suite. In: 2020 IEEE/ACM International Workshop on Heterogeneous High-Performance Reconfigurable Computing (H2RC). ; 2020. doi:10.1109/h2rc51942.2020.00007","short":"M. Meyer, T. Kenter, C. Plessl, in: 2020 IEEE/ACM International Workshop on Heterogeneous High-Performance Reconfigurable Computing (H2RC), 2020.","chicago":"Meyer, Marius, Tobias Kenter, and Christian Plessl. “Evaluating FPGA Accelerator Performance with a Parameterized OpenCL Adaptation of Selected Benchmarks of the HPCChallenge Benchmark Suite.” In 2020 IEEE/ACM International Workshop on Heterogeneous High-Performance Reconfigurable Computing (H2RC), 2020. https://doi.org/10.1109/h2rc51942.2020.00007."},"publication_status":"published","date_updated":"2023-09-26T11:42:53Z","title":"Evaluating FPGA Accelerator Performance with a Parameterized OpenCL Adaptation of Selected Benchmarks of the HPCChallenge Benchmark Suite","year":"2020","author":[{"id":"40778","full_name":"Meyer, Marius","last_name":"Meyer","first_name":"Marius"},{"last_name":"Kenter","first_name":"Tobias","full_name":"Kenter, Tobias","id":"3145"},{"id":"16153","first_name":"Christian","orcid":"0000-0001-5728-9982","last_name":"Plessl","full_name":"Plessl, Christian"}],"publication_identifier":{"isbn":["9781665415927"]},"doi":"10.1109/h2rc51942.2020.00007","main_file_link":[{"url":"https://ieeexplore.ieee.org/document/9306963"}],"language":[{"iso":"eng"}],"related_material":{"link":[{"relation":"supplementary_material","url":"https://github.com/pc2/HPCC_FPGA","description":"Official repository of the benchmark suite on GitHub"}]},"abstract":[{"text":"FPGAs have found increasing adoption in data center applications since a new generation of high-level tools have become available which noticeably reduce development time for FPGA accelerators and still provide high-quality results. There is, however, no high-level benchmark suite available, which specifically enables a comparison of FPGA architectures, programming tools, and libraries for HPC applications. To fill this gap, we have developed an OpenCL-based open-source implementation of the HPCC benchmark suite for Xilinx and Intel FPGAs. This benchmark can serve to analyze the current capabilities of FPGA devices, cards, and development tool flows, track progress over time, and point out specific difficulties for FPGA acceleration in the HPC domain. Additionally, the benchmark documents proven performance optimization patterns. We will continue optimizing and porting the benchmark for new generations of FPGAs and design tools and encourage active participation to create a valuable tool for the community. To fill this gap, we have developed an OpenCL-based open-source implementation of the HPCC benchmark suite for Xilinx and Intel FPGAs. This benchmark can serve to analyze the current capabilities of FPGA devices, cards, and development tool flows, track progress over time, and point out specific difficulties for FPGA acceleration in the HPC domain. Additionally, the benchmark documents proven performance optimization patterns. We will continue optimizing and porting the benchmark for new generations of FPGAs and design tools and encourage active participation to create a valuable tool for the community.","lang":"eng"}],"publication":"2020 IEEE/ACM International Workshop on Heterogeneous High-performance Reconfigurable Computing (H2RC)","type":"conference","keyword":["FPGA","OpenCL","High Level Synthesis","HPC benchmarking"],"department":[{"_id":"27"},{"_id":"518"}],"date_created":"2021-04-16T10:17:22Z"},{"date_created":"2021-09-15T10:26:54Z","file":[{"date_created":"2021-09-28T08:39:12Z","creator":"ricardo","file_id":"25056","content_type":"application/pdf","success":1,"relation":"main_file","date_updated":"2021-09-28T08:39:12Z","file_name":"Influence of precursor concentration on spray and particle.pdf","file_size":2807339,"access_level":"closed"}],"type":"conference","keyword":["FSP","nanoparticle synthesis","in situ measurements"],"citation":{"short":"M. Bieber, R. Tischendorf, M. Reddemann, H.-J. Schmid, R. Kneer, in: ILASS (European Conference on Liquid Atomization and Spray Systems), 2019.","chicago":"Bieber, M., R. Tischendorf, M. Reddemann, H.-J. Schmid, and R. Kneer. “Influence of Precursor Concentration on Spray and Particle Formation in Flame Spray Pyrolysis.” ILASS (European Conference on Liquid Atomization and Spray Systems), 2019.","ieee":"M. Bieber, R. Tischendorf, M. Reddemann, H.-J. Schmid, and R. Kneer, “Influence of precursor concentration on spray and particle formation in flame spray pyrolysis,” presented at the ILASS (European Conference on Liquid Atomization and Spray Systems), Paris, 2019.","apa":"Bieber, M., Tischendorf, R., Reddemann, M., Schmid, H.-J., & Kneer, R. (2019). Influence of precursor concentration on spray and particle formation in flame spray pyrolysis. ILASS (European Conference on Liquid Atomization and Spray Systems), Paris.","bibtex":"@inproceedings{Bieber_Tischendorf_Reddemann_Schmid_Kneer_2019, title={Influence of precursor concentration on spray and particle formation in flame spray pyrolysis}, publisher={ILASS (European Conference on Liquid Atomization and Spray Systems)}, author={Bieber, M. and Tischendorf, R. and Reddemann, M. and Schmid, H.-J. and Kneer, R.}, year={2019} }","ama":"Bieber M, Tischendorf R, Reddemann M, Schmid H-J, Kneer R. Influence of precursor concentration on spray and particle formation in flame spray pyrolysis. In: ILASS (European Conference on Liquid Atomization and Spray Systems); 2019.","mla":"Bieber, M., et al. Influence of Precursor Concentration on Spray and Particle Formation in Flame Spray Pyrolysis. ILASS (European Conference on Liquid Atomization and Spray Systems), 2019."},"file_date_updated":"2021-09-28T08:39:12Z","abstract":[{"lang":"eng","text":"Liquid atomization is expected to be a key process in Flame Spray Pyrolysis, as it determines the primary droplet size and velocity distribution, which represent initial conditions for flame shape and temperature field. A well-defined manipulation of atomization may be achieved by variation of nozzle geometry, injection parameter or fluid properties. However, change of fluid properties, e.g. varying solvents or increasing the precursor concentration, also influences the final particle properties. In this work, the influence of precursor concentration on fluid properties, spray and particle formation in Flame Spray Pyrolysis is experimentally investigated. High-speed shadowgraphy and Phase-Doppler measurements are conducted in a semi-closed combustion chamber with a well-defined burner geometry (SpraySyn burner) that is based on a coaxial atomization principle. By adding precursor to the flammable solvent, resulting spray characteristics, flame shape and appearance are changed in color, shape and mean droplet size distribution. Compared to resulting mean droplet sizes of pure solvent mixtures (D32, 22 μm), mean droplet sizes in the center of the precursor flame at 30 mm above the burner are generally smaller (D32, 18 μm). Persisting high share of small droplets in the droplet size distribution are presented, that presumably origin from an accumulation of metal organic precursor at the droplet surface during combustion, that acts as a diffusive barrier for high volatility solvent and thus reduces droplet evaporation. Sufficiently high above the nozzle exit, increasing the precursor concentration does not affect the radial distribution of mean droplet sizes but leads to increased mean particle sizes. More precursor presumably leads to higher concentrations of prime particles in the flame, thus probability of particle collusion and agglomeration. High-speed imaging at nozzle exit revealed random fluctuations of initial jet diameter, paired with jet axis shifting around 1000 Hz. These superposed fluctuations determine the initial conditions for atomization, induce pulsations in the flame and thus initiate the entire chain of the particle synthesis process."}],"publisher":"ILASS (European Conference on Liquid Atomization and Spray Systems)","_id":"24502","language":[{"iso":"eng"}],"ddc":["620"],"user_id":"67002","conference":{"location":"Paris","name":"ILASS (European Conference on Liquid Atomization and Spray Systems)","start_date":"2019-09-02","end_date":"2019-09-04"},"author":[{"full_name":"Bieber, M.","first_name":"M.","last_name":"Bieber"},{"full_name":"Tischendorf, R.","last_name":"Tischendorf","first_name":"R."},{"first_name":"M.","last_name":"Reddemann","full_name":"Reddemann, M."},{"full_name":"Schmid, H.-J.","first_name":"H.-J.","last_name":"Schmid"},{"last_name":"Kneer","first_name":"R.","full_name":"Kneer, R."}],"year":"2019","title":"Influence of precursor concentration on spray and particle formation in flame spray pyrolysis","status":"public","has_accepted_license":"1","date_updated":"2022-01-06T06:56:26Z","publication_status":"published"},{"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"file_date_updated":"2020-04-25T08:00:35Z","citation":{"mla":"Witschen, Linus Matthias, et al. “Jump Search: A Fast Technique for the Synthesis of Approximate Circuits.” Fourth Workshop on Approximate Computing (AxC 2019).","apa":"Witschen, L. M., Ghasemzadeh Mohammadi, H., Artmann, M., & Platzner, M. (n.d.). Jump Search: A Fast Technique for the Synthesis of Approximate Circuits. Fourth Workshop on Approximate Computing (AxC 2019).","ieee":"L. M. Witschen, H. Ghasemzadeh Mohammadi, M. Artmann, and M. Platzner, “Jump Search: A Fast Technique for the Synthesis of Approximate Circuits,” Fourth Workshop on Approximate Computing (AxC 2019). .","ama":"Witschen LM, Ghasemzadeh Mohammadi H, Artmann M, Platzner M. Jump Search: A Fast Technique for the Synthesis of Approximate Circuits. Fourth Workshop on Approximate Computing (AxC 2019).","short":"L.M. Witschen, H. Ghasemzadeh Mohammadi, M. Artmann, M. Platzner, Fourth Workshop on Approximate Computing (AxC 2019) (n.d.).","chicago":"Witschen, Linus Matthias, Hassan Ghasemzadeh Mohammadi, Matthias Artmann, and Marco Platzner. “Jump Search: A Fast Technique for the Synthesis of Approximate Circuits.” Fourth Workshop on Approximate Computing (AxC 2019), n.d.","bibtex":"@article{Witschen_Ghasemzadeh Mohammadi_Artmann_Platzner, title={Jump Search: A Fast Technique for the Synthesis of Approximate Circuits}, journal={Fourth Workshop on Approximate Computing (AxC 2019)}, author={Witschen, Linus Matthias and Ghasemzadeh Mohammadi, Hassan and Artmann, Matthias and Platzner, Marco} }"},"has_accepted_license":"1","status":"public","ddc":["006"],"user_id":"49051","page":"2","_id":"16853","abstract":[{"lang":"eng","text":"State-of-the-art frameworks for generating approximate circuits usually rely on information gained through circuit synthesis and/or verification to explore the search space and to find an optimal solution. Throughout the process, a large number of circuits may be subject to processing, leading to considerable runtimes. In this work, we propose a search which takes error bounds and pre-computed impact factors into account to reduce the number of invoked synthesis and verification processes. In our experimental results, we achieved speed-ups of up to 76x while area savings remain comparable to the reference search method, simulated annealing."}],"publication":"Fourth Workshop on Approximate Computing (AxC 2019)","keyword":["Approximate computing","parameter selection","search space exploration","verification","circuit synthesis"],"type":"preprint","department":[{"_id":"78"}],"file":[{"date_created":"2020-04-25T08:00:35Z","creator":"witschen","file_id":"16854","success":1,"content_type":"application/pdf","file_name":"AxC19_paper_3.pdf","access_level":"closed","file_size":152806,"relation":"main_file","date_updated":"2020-04-25T08:00:35Z"}],"date_created":"2020-04-25T08:02:07Z","date_updated":"2022-01-06T06:52:57Z","publication_status":"accepted","year":"2019","title":"Jump Search: A Fast Technique for the Synthesis of Approximate Circuits","author":[{"id":"49051","full_name":"Witschen, Linus Matthias","last_name":"Witschen","first_name":"Linus Matthias"},{"id":"61186","last_name":"Ghasemzadeh Mohammadi","first_name":"Hassan","full_name":"Ghasemzadeh Mohammadi, Hassan"},{"full_name":"Artmann, Matthias","last_name":"Artmann","first_name":"Matthias"},{"full_name":"Platzner, Marco","first_name":"Marco","last_name":"Platzner","id":"398"}],"language":[{"iso":"eng"}]},{"place":"New York, NY, USA","citation":{"chicago":"Witschen, Linus Matthias, Hassan Ghasemzadeh Mohammadi, Matthias Artmann, and Marco Platzner. “Jump Search: A Fast Technique for the Synthesis of Approximate Circuits.” In Proceedings of the 2019 on Great Lakes Symposium on VLSI - GLSVLSI ’19. New York, NY, USA: ACM, 2019. https://doi.org/10.1145/3299874.3317998.","short":"L.M. Witschen, H. Ghasemzadeh Mohammadi, M. Artmann, M. Platzner, in: Proceedings of the 2019 on Great Lakes Symposium on VLSI - GLSVLSI ’19, ACM, New York, NY, USA, 2019.","ieee":"L. M. Witschen, H. Ghasemzadeh Mohammadi, M. Artmann, and M. Platzner, “Jump Search: A Fast Technique for the Synthesis of Approximate Circuits,” in Proceedings of the 2019 on Great Lakes Symposium on VLSI - GLSVLSI ’19, Tysons Corner, VA, USA, 2019.","apa":"Witschen, L. M., Ghasemzadeh Mohammadi, H., Artmann, M., & Platzner, M. (2019). Jump Search: A Fast Technique for the Synthesis of Approximate Circuits. In Proceedings of the 2019 on Great Lakes Symposium on VLSI - GLSVLSI ’19. New York, NY, USA: ACM. https://doi.org/10.1145/3299874.3317998","bibtex":"@inproceedings{Witschen_Ghasemzadeh Mohammadi_Artmann_Platzner_2019, place={New York, NY, USA}, title={Jump Search: A Fast Technique for the Synthesis of Approximate Circuits}, DOI={10.1145/3299874.3317998}, booktitle={Proceedings of the 2019 on Great Lakes Symposium on VLSI - GLSVLSI ’19}, publisher={ACM}, author={Witschen, Linus Matthias and Ghasemzadeh Mohammadi, Hassan and Artmann, Matthias and Platzner, Marco}, year={2019} }","ama":"Witschen LM, Ghasemzadeh Mohammadi H, Artmann M, Platzner M. Jump Search: A Fast Technique for the Synthesis of Approximate Circuits. In: Proceedings of the 2019 on Great Lakes Symposium on VLSI - GLSVLSI ’19. New York, NY, USA: ACM; 2019. doi:10.1145/3299874.3317998","mla":"Witschen, Linus Matthias, et al. “Jump Search: A Fast Technique for the Synthesis of Approximate Circuits.” Proceedings of the 2019 on Great Lakes Symposium on VLSI - GLSVLSI ’19, ACM, 2019, doi:10.1145/3299874.3317998."},"project":[{"name":"Computing Resources Provided by the Paderborn Center for Parallel Computing","_id":"52"}],"_id":"10577","publisher":"ACM","user_id":"49051","conference":{"location":"Tysons Corner, VA, USA","start_date":"2019-05-09","name":"ACM Great Lakes Symposium on VLSI (GLSVLSI)","end_date":"2019-05-11"},"status":"public","date_created":"2019-07-08T15:13:10Z","department":[{"_id":"78"}],"keyword":["Approximate computing","design automation","parameter selection","circuit synthesis"],"type":"conference","publication":"Proceedings of the 2019 on Great Lakes Symposium on VLSI - GLSVLSI '19","abstract":[{"lang":"eng","text":"State-of-the-art frameworks for generating approximate circuits automatically explore the search space in an iterative process - often greedily. Synthesis and verification processes are invoked in each iteration to evaluate the found solutions and to guide the search algorithm. As a result, a large number of approximate circuits is subjected to analysis - leading to long runtimes - but only a few approximate circuits might form an acceptable solution.\r\n\r\nIn this paper, we present our Jump Search (JS) method which seeks to reduce the runtime of an approximation process by reducing the number of expensive synthesis and verification steps. To reduce the runtime, JS computes impact factors for each approximation candidate in the circuit to create a selection of approximate circuits without invoking synthesis or verification processes. We denote the selection as path from which JS determines the final solution. In our experimental results, JS achieved speed-ups of up to 57x while area savings remain comparable to the reference search method, Simulated Annealing."}],"language":[{"iso":"eng"}],"doi":"10.1145/3299874.3317998","author":[{"first_name":"Linus Matthias","last_name":"Witschen","full_name":"Witschen, Linus Matthias","id":"49051"},{"full_name":"Ghasemzadeh Mohammadi, Hassan","last_name":"Ghasemzadeh Mohammadi","first_name":"Hassan","id":"61186"},{"first_name":"Matthias","last_name":"Artmann","full_name":"Artmann, Matthias"},{"first_name":"Marco","last_name":"Platzner","full_name":"Platzner, Marco","id":"398"}],"publication_identifier":{"isbn":["9781450362528"]},"title":"Jump Search: A Fast Technique for the Synthesis of Approximate Circuits","year":"2019","date_updated":"2022-01-06T06:50:45Z","publication_status":"published"},{"language":[{"iso":"eng"}],"_id":"24515","publisher":"PARTEC 2019 International Congress on Particle Technology","ddc":["620"],"user_id":"67002","title":"Representative Sample Extraction from Spray Flames for SMPS and HR-TEM Measurements","year":"2019","status":"public","conference":{"name":"PARTEC 2019 International Congress on Particle Technology","start_date":"2019-09-04","location":"Nürnberg","end_date":"2019-04-11"},"author":[{"first_name":"Ricardo","last_name":"Tischendorf","full_name":"Tischendorf, Ricardo","id":"67002"},{"last_name":"Bieber","first_name":"M.","full_name":"Bieber, M."},{"full_name":"Kneer, R.","first_name":"R.","last_name":"Kneer"},{"id":"464","full_name":"Schmid, Hans-Joachim","first_name":"Hans-Joachim","last_name":"Schmid"}],"date_updated":"2022-03-16T21:35:09Z","publication_status":"published","has_accepted_license":"1","file":[{"success":1,"content_type":"application/pdf","file_id":"25054","date_updated":"2021-09-28T08:35:36Z","relation":"main_file","file_size":319929,"access_level":"closed","file_name":"46.3_Tischendorf.pdf","date_created":"2021-09-28T08:35:36Z","creator":"ricardo"}],"date_created":"2021-09-15T10:46:51Z","keyword":["FSP","nanoparticle synthesis","in situ measurements"],"type":"conference_abstract","file_date_updated":"2021-09-28T08:35:36Z","citation":{"short":"R. Tischendorf, M. Bieber, R. Kneer, H.-J. Schmid, in: PARTEC 2019 International Congress on Particle Technology, 2019.","ama":"Tischendorf R, Bieber M, Kneer R, Schmid H-J. Representative Sample Extraction from Spray Flames for SMPS and HR-TEM Measurements. In: PARTEC 2019 International Congress on Particle Technology; 2019.","chicago":"Tischendorf, Ricardo, M. Bieber, R. Kneer, and Hans-Joachim Schmid. “Representative Sample Extraction from Spray Flames for SMPS and HR-TEM Measurements.” PARTEC 2019 International Congress on Particle Technology, 2019.","bibtex":"@inproceedings{Tischendorf_Bieber_Kneer_Schmid_2019, title={Representative Sample Extraction from Spray Flames for SMPS and HR-TEM Measurements}, publisher={PARTEC 2019 International Congress on Particle Technology}, author={Tischendorf, Ricardo and Bieber, M. and Kneer, R. and Schmid, Hans-Joachim}, year={2019} }","mla":"Tischendorf, Ricardo, et al. Representative Sample Extraction from Spray Flames for SMPS and HR-TEM Measurements. PARTEC 2019 International Congress on Particle Technology, 2019.","apa":"Tischendorf, R., Bieber, M., Kneer, R., & Schmid, H.-J. (2019). Representative Sample Extraction from Spray Flames for SMPS and HR-TEM Measurements. PARTEC 2019 International Congress on Particle Technology, Nürnberg.","ieee":"R. Tischendorf, M. Bieber, R. Kneer, and H.-J. Schmid, “Representative Sample Extraction from Spray Flames for SMPS and HR-TEM Measurements,” presented at the PARTEC 2019 International Congress on Particle Technology, Nürnberg, 2019."}},{"publication":"26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC)","citation":{"chicago":"Awais, Muhammad, Hassan Ghasemzadeh Mohammadi, and Marco Platzner. “An MCTS-Based Framework for Synthesis of Approximate Circuits.” In 26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC), 219–24, 2018. https://doi.org/10.1109/VLSI-SoC.2018.8645026.","short":"M. Awais, H. Ghasemzadeh Mohammadi, M. Platzner, in: 26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC), 2018, pp. 219–224.","ama":"Awais M, Ghasemzadeh Mohammadi H, Platzner M. An MCTS-based Framework for Synthesis of Approximate Circuits. In: 26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC). ; 2018:219-224. doi:10.1109/VLSI-SoC.2018.8645026","bibtex":"@inproceedings{Awais_Ghasemzadeh Mohammadi_Platzner_2018, title={An MCTS-based Framework for Synthesis of Approximate Circuits}, DOI={10.1109/VLSI-SoC.2018.8645026}, booktitle={26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC)}, author={Awais, Muhammad and Ghasemzadeh Mohammadi, Hassan and Platzner, Marco}, year={2018}, pages={219–224} }","apa":"Awais, M., Ghasemzadeh Mohammadi, H., & Platzner, M. (2018). An MCTS-based Framework for Synthesis of Approximate Circuits. In 26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC) (pp. 219–224). https://doi.org/10.1109/VLSI-SoC.2018.8645026","mla":"Awais, Muhammad, et al. “An MCTS-Based Framework for Synthesis of Approximate Circuits.” 26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC), 2018, pp. 219–24, doi:10.1109/VLSI-SoC.2018.8645026.","ieee":"M. Awais, H. Ghasemzadeh Mohammadi, and M. Platzner, “An MCTS-based Framework for Synthesis of Approximate Circuits,” in 26th IFIP/IEEE International Conference on Very Large Scale Integration (VLSI-SoC), 2018, pp. 219–224."},"abstract":[{"lang":"eng","text":"Approximate computing has become a very popular design\r\nstrategy that exploits error resilient computations to achieve higher\r\nperformance and energy efficiency. Automated synthesis of approximate\r\ncircuits is performed via functional approximation, in which various\r\nparts of the target circuit are extensively examined with a library\r\nof approximate components/transformations to trade off the functional\r\naccuracy and computational budget (i.e., power). However, as the number\r\nof possible approximate transformations increases, traditional search\r\ntechniques suffer from a combinatorial explosion due to the large\r\nbranching factor. In this work, we present a comprehensive framework\r\nfor automated synthesis of approximate circuits from either structural\r\nor behavioral descriptions. We adapt the Monte Carlo Tree Search\r\n(MCTS), as a stochastic search technique, to deal with the large design\r\nspace exploration, which enables a broader range of potential possible\r\napproximations through lightweight random simulations. The proposed\r\nframework is able to recognize the design Pareto set even with low\r\ncomputational budgets. Experimental results highlight the capabilities of\r\nthe proposed synthesis framework by resulting in up to 61.69% energy\r\nsaving while maintaining the predefined quality constraints."}],"date_created":"2019-07-10T09:21:38Z","type":"conference","keyword":["Approximate computing","High-level synthesis","Accuracy","Monte-Carlo tree search","Circuit simulation"],"department":[{"_id":"78"}],"year":"2018","title":"An MCTS-based Framework for Synthesis of Approximate Circuits","status":"public","author":[{"id":"64665","last_name":"Awais","first_name":"Muhammad","orcid":"https://orcid.org/0000-0003-4148-2969","full_name":"Awais, Muhammad"},{"first_name":"Hassan","last_name":"Ghasemzadeh Mohammadi","full_name":"Ghasemzadeh Mohammadi, Hassan","id":"61186"},{"full_name":"Platzner, Marco","last_name":"Platzner","first_name":"Marco","id":"398"}],"date_updated":"2022-01-06T06:50:46Z","page":"219-224","language":[{"iso":"eng"}],"_id":"10598","user_id":"64665","doi":"10.1109/VLSI-SoC.2018.8645026"},{"type":"journal_article","keyword":["Aluminophosphates","Ionic liquids","Ionothermal synthesis","Microporous materials","Zeolite analogous"],"date_created":"2026-02-07T08:58:23Z","abstract":[{"text":"In a systematic study on the synthesis of aluminophosphates (AlPOs) under ionothermal conditions, initially using 1-butyl-3-methylimidazolium bromide ([C4mim]Br) as ionic liquid solvent and structure-directing agent, the effect of the reaction conditions (i.e. molar P/Al, F/Al and ionic liquid/Al ratios, alternative fluoride sources, influence of the ionic liquid’s cation or anion, temperature, reaction time) on the framework type was studied in detail. In [C4mim]Br, the formation of the more thermodynamically stable AEL framework type proceeds via AFI. The framework type can be changed by choosing another anion or cation of the ionic liquid. Hence, the successful ionothermal synthesis of the AFI framework AlPO is reported by using either N-ethylpyridinium bromide ([C2py]Br) or 1-butyl-3-methylimidazolium chloride ([C4mim]Cl). The mineraliser [Me4N]F, rather than HF, has been used for the first time as an alternative fluoride source in ionothermal synthesis, which can also affect the framework type. Hence, a very efficient synthesis of the LTA framework type is reported in [C4mim]Br using [Me4N]F. Ab initio molecular dynamics (AIMD) studies showed that the anion bridges between the aluminium atoms of the framework and the cation. The interaction is more favoured in the presence of the bromide than the chloride, which may be a clue to the question why the AEL framework is not formed in the chloride-based ionic liquid. This study opens several routes to pursue in the future as numerous ionic liquids are available which can be used in ionothermal synthesis.","lang":"eng"}],"extern":"1","publication":"Microporous and Mesoporous Materials","citation":{"ama":"Azim MM, Pensado A, Kirchner B, et al. Ionothermal synthesis of crystalline microporous aluminophosphates: Systematic study on the conditions affecting the framework type. Microporous and Mesoporous Materials. 2018;266:204–213. doi:10.1016/j.micromeso.2018.02.053","bibtex":"@article{Azim_Pensado_Kirchner_Gutmann_Groszewicz_Buntkowsky_Stark_2018, title={Ionothermal synthesis of crystalline microporous aluminophosphates: Systematic study on the conditions affecting the framework type}, volume={266}, DOI={10.1016/j.micromeso.2018.02.053}, journal={Microporous and Mesoporous Materials}, author={Azim, Muhammad Mohsin and Pensado, Alfonso and Kirchner, Barbara and Gutmann, Torsten and Groszewicz, Pedro B. and Buntkowsky, Gerd and Stark, Annegret}, year={2018}, pages={204–213} }","mla":"Azim, Muhammad Mohsin, et al. “Ionothermal Synthesis of Crystalline Microporous Aluminophosphates: Systematic Study on the Conditions Affecting the Framework Type.” Microporous and Mesoporous Materials, vol. 266, 2018, pp. 204–213, doi:10.1016/j.micromeso.2018.02.053.","chicago":"Azim, Muhammad Mohsin, Alfonso Pensado, Barbara Kirchner, Torsten Gutmann, Pedro B. Groszewicz, Gerd Buntkowsky, and Annegret Stark. “Ionothermal Synthesis of Crystalline Microporous Aluminophosphates: Systematic Study on the Conditions Affecting the Framework Type.” Microporous and Mesoporous Materials 266 (2018): 204–213. https://doi.org/10.1016/j.micromeso.2018.02.053.","short":"M.M. Azim, A. Pensado, B. Kirchner, T. Gutmann, P.B. Groszewicz, G. Buntkowsky, A. Stark, Microporous and Mesoporous Materials 266 (2018) 204–213.","apa":"Azim, M. M., Pensado, A., Kirchner, B., Gutmann, T., Groszewicz, P. B., Buntkowsky, G., & Stark, A. (2018). Ionothermal synthesis of crystalline microporous aluminophosphates: Systematic study on the conditions affecting the framework type. Microporous and Mesoporous Materials, 266, 204–213. https://doi.org/10.1016/j.micromeso.2018.02.053","ieee":"M. M. Azim et al., “Ionothermal synthesis of crystalline microporous aluminophosphates: Systematic study on the conditions affecting the framework type,” Microporous and Mesoporous Materials, vol. 266, pp. 204–213, 2018, doi: 10.1016/j.micromeso.2018.02.053."},"doi":"10.1016/j.micromeso.2018.02.053","user_id":"100715","volume":266,"page":"204–213","language":[{"iso":"eng"}],"_id":"63924","date_updated":"2026-02-17T16:19:17Z","intvolume":" 266","status":"public","year":"2018","title":"Ionothermal synthesis of crystalline microporous aluminophosphates: Systematic study on the conditions affecting the framework type","author":[{"full_name":"Azim, Muhammad Mohsin","last_name":"Azim","first_name":"Muhammad Mohsin"},{"first_name":"Alfonso","last_name":"Pensado","full_name":"Pensado, Alfonso"},{"first_name":"Barbara","last_name":"Kirchner","full_name":"Kirchner, Barbara"},{"id":"118165","last_name":"Gutmann","first_name":"Torsten","full_name":"Gutmann, Torsten"},{"full_name":"Groszewicz, Pedro B.","last_name":"Groszewicz","first_name":"Pedro B."},{"full_name":"Buntkowsky, Gerd","last_name":"Buntkowsky","first_name":"Gerd"},{"full_name":"Stark, Annegret","last_name":"Stark","first_name":"Annegret"}]}]