--- _id: '64114' author: - first_name: Qazi Arbab full_name: Ahmed, Qazi Arbab last_name: Ahmed - first_name: Muhammad full_name: Awais, Muhammad last_name: Awais - first_name: Marco full_name: Platzner, Marco last_name: Platzner citation: ama: 'Ahmed QA, Awais M, Platzner M. MAAS: Hiding Trojans in Approximate Circuits. In: 2023 24th International Symposium on Quality Electronic Design (ISQED). IEEE; 2023. doi:10.1109/isqed57927.2023.10129286' apa: 'Ahmed, Q. A., Awais, M., & Platzner, M. (2023). MAAS: Hiding Trojans in Approximate Circuits. 2023 24th International Symposium on Quality Electronic Design (ISQED). https://doi.org/10.1109/isqed57927.2023.10129286' bibtex: '@inproceedings{Ahmed_Awais_Platzner_2023, title={MAAS: Hiding Trojans in Approximate Circuits}, DOI={10.1109/isqed57927.2023.10129286}, booktitle={2023 24th International Symposium on Quality Electronic Design (ISQED)}, publisher={IEEE}, author={Ahmed, Qazi Arbab and Awais, Muhammad and Platzner, Marco}, year={2023} }' chicago: 'Ahmed, Qazi Arbab, Muhammad Awais, and Marco Platzner. “MAAS: Hiding Trojans in Approximate Circuits.” In 2023 24th International Symposium on Quality Electronic Design (ISQED). IEEE, 2023. https://doi.org/10.1109/isqed57927.2023.10129286.' ieee: 'Q. A. Ahmed, M. Awais, and M. Platzner, “MAAS: Hiding Trojans in Approximate Circuits,” 2023, doi: 10.1109/isqed57927.2023.10129286.' mla: 'Ahmed, Qazi Arbab, et al. “MAAS: Hiding Trojans in Approximate Circuits.” 2023 24th International Symposium on Quality Electronic Design (ISQED), IEEE, 2023, doi:10.1109/isqed57927.2023.10129286.' short: 'Q.A. Ahmed, M. Awais, M. Platzner, in: 2023 24th International Symposium on Quality Electronic Design (ISQED), IEEE, 2023.' date_created: 2026-02-11T10:19:40Z date_updated: 2026-02-11T10:20:32Z department: - _id: '78' doi: 10.1109/isqed57927.2023.10129286 publication: 2023 24th International Symposium on Quality Electronic Design (ISQED) publication_status: published publisher: IEEE status: public title: 'MAAS: Hiding Trojans in Approximate Circuits' type: conference user_id: '64665' year: '2023' ... --- _id: '47601' author: - first_name: Sabine full_name: Radtke, Sabine id: '58342' last_name: Radtke - first_name: Alina full_name: Vogel, Alina id: '62727' last_name: Vogel citation: ama: 'Radtke S, Vogel A. Talentsuche im paralympischen Sport (ParaTalent). In: ; 2023.' apa: Radtke, S., & Vogel, A. (2023). Talentsuche im paralympischen Sport (ParaTalent). bibtex: '@inproceedings{Radtke_Vogel_2023, title={Talentsuche im paralympischen Sport (ParaTalent)}, author={Radtke, Sabine and Vogel, Alina}, year={2023} }' chicago: Radtke, Sabine, and Alina Vogel. “Talentsuche im paralympischen Sport (ParaTalent),” 2023. ieee: S. Radtke and A. Vogel, “Talentsuche im paralympischen Sport (ParaTalent),” 2023. mla: Radtke, Sabine, and Alina Vogel. Talentsuche im paralympischen Sport (ParaTalent). 2023. short: 'S. Radtke, A. Vogel, in: 2023.' date_created: 2023-10-04T20:19:58Z date_updated: 2026-02-12T11:58:43Z keyword: - Para Sport - Talentmaßnahmen - Nachwuchs language: - iso: ger publication_status: published status: public title: Talentsuche im paralympischen Sport (ParaTalent) type: conference_abstract user_id: '58342' year: '2023' ... --- _id: '50975' author: - first_name: B. full_name: Alberternst, B. last_name: Alberternst - first_name: M. full_name: Giesler, M. last_name: Giesler - first_name: Lena full_name: Steinhoff, Lena id: '4336' last_name: Steinhoff - first_name: A. full_name: Eggert, A. last_name: Eggert citation: ama: 'Alberternst B, Giesler M, Steinhoff L, Eggert A. The Consumerization of Care: How Capitalism Is Co-Opting Solidarity. In: 2023 AMA Winter Academic Conference Proceedings; 2023.' apa: 'Alberternst, B., Giesler, M., Steinhoff, L., & Eggert, A. (2023). The Consumerization of Care: How Capitalism Is Co-Opting Solidarity.' bibtex: '@inproceedings{Alberternst_Giesler_Steinhoff_Eggert_2023, place={Nashville}, title={The Consumerization of Care: How Capitalism Is Co-Opting Solidarity}, publisher={2023 AMA Winter Academic Conference Proceedings}, author={Alberternst, B. and Giesler, M. and Steinhoff, Lena and Eggert, A.}, year={2023} }' chicago: 'Alberternst, B., M. Giesler, Lena Steinhoff, and A. Eggert. “The Consumerization of Care: How Capitalism Is Co-Opting Solidarity.” Nashville: 2023 AMA Winter Academic Conference Proceedings, 2023.' ieee: 'B. Alberternst, M. Giesler, L. Steinhoff, and A. Eggert, “The Consumerization of Care: How Capitalism Is Co-Opting Solidarity,” 2023.' mla: 'Alberternst, B., et al. The Consumerization of Care: How Capitalism Is Co-Opting Solidarity. 2023 AMA Winter Academic Conference Proceedings, 2023.' short: 'B. Alberternst, M. Giesler, L. Steinhoff, A. Eggert, in: 2023 AMA Winter Academic Conference Proceedings, Nashville, 2023.' date_created: 2024-01-29T13:08:21Z date_updated: 2026-02-13T11:47:19Z department: - _id: '733' language: - iso: eng place: Nashville publisher: 2023 AMA Winter Academic Conference Proceedings status: public title: 'The Consumerization of Care: How Capitalism Is Co-Opting Solidarity' type: conference user_id: '102525' year: '2023' ... --- _id: '29050' abstract: - lang: eng text: This study examines GAAP effective tax rate (ETR) visibility as a distinct disclosure choice in firms’ financial statements. By applying a game-theory disclosure model for the voluntary disclosure strategies of firms, in a tax setting, we argue that firms face a trade-off in their ETR disclosure decisions. On the one hand, firms have an incentive to enhance their ETR disclosure when the ratio offers shareholders ‘favourable conditions’, for example, higher expected after-tax cash flows. On the other hand, the disclosure of a favourable low ETR could attract the attention of tax auditors and the public and ultimately result in disclosure costs. We empirically test disclosure behaviour by examining the relation between disclosure visibility and different ETR conditions that reflect different stakeholder-specific costs and benefits. While we find that unfavourable ETR conditions are not highlighted, we observe higher disclosure visibility for favourable ETRs (smooth, close to the industry average, and decreasing ETRs). Additional analyses reveal that this high visibility is characteristic of firm years with only moderately decreasing ETRs at usual ETR levels, while extreme ETRs are not highlighted. Interestingly and in contrast to our main results, a subsample of family firms does not seem to highlight favourable ETRs. article_type: original author: - first_name: Vanessa full_name: Flagmeier, Vanessa last_name: Flagmeier - first_name: Jens full_name: Müller, Jens id: '1245' last_name: Müller - first_name: Caren full_name: Sureth-Sloane, Caren id: '530' last_name: Sureth-Sloane orcid: ' 0000-0002-8183-5901' citation: ama: Flagmeier V, Müller J, Sureth-Sloane C. When Do Firms Highlight Their Effective Tax Rate? Accounting and Business Research. 2023;53(1):1-37. doi:10.1080/00014788.2021.1958669 apa: Flagmeier, V., Müller, J., & Sureth-Sloane, C. (2023). When Do Firms Highlight Their Effective Tax Rate? Accounting and Business Research, 53(1), 1–37. https://doi.org/10.1080/00014788.2021.1958669 bibtex: '@article{Flagmeier_Müller_Sureth-Sloane_2023, title={When Do Firms Highlight Their Effective Tax Rate?}, volume={53}, DOI={10.1080/00014788.2021.1958669}, number={1}, journal={Accounting and Business Research}, author={Flagmeier, Vanessa and Müller, Jens and Sureth-Sloane, Caren}, year={2023}, pages={1–37} }' chicago: 'Flagmeier, Vanessa, Jens Müller, and Caren Sureth-Sloane. “When Do Firms Highlight Their Effective Tax Rate?” Accounting and Business Research 53, no. 1 (2023): 1–37. https://doi.org/10.1080/00014788.2021.1958669.' ieee: 'V. Flagmeier, J. Müller, and C. Sureth-Sloane, “When Do Firms Highlight Their Effective Tax Rate?,” Accounting and Business Research, vol. 53, no. 1, pp. 1–37, 2023, doi: 10.1080/00014788.2021.1958669.' mla: Flagmeier, Vanessa, et al. “When Do Firms Highlight Their Effective Tax Rate?” Accounting and Business Research, vol. 53, no. 1, 2023, pp. 1–37, doi:10.1080/00014788.2021.1958669. short: V. Flagmeier, J. Müller, C. Sureth-Sloane, Accounting and Business Research 53 (2023) 1–37. date_created: 2021-12-20T08:29:38Z date_updated: 2026-02-17T12:32:33Z department: - _id: '187' doi: 10.1080/00014788.2021.1958669 intvolume: ' 53' issue: '1' language: - iso: eng main_file_link: - open_access: '1' oa: '1' page: 1-37 publication: Accounting and Business Research publication_status: published quality_controlled: '1' status: public title: When Do Firms Highlight Their Effective Tax Rate? type: journal_article user_id: '40298' volume: 53 year: '2023' ... --- _id: '60905' author: - first_name: Moritz full_name: Ostermann, Moritz id: '44763' last_name: Ostermann orcid: https://orcid.org/0000-0003-1146-0443 - first_name: Eric full_name: Dierkes, Eric last_name: Dierkes - first_name: Thorsten full_name: Marten, Thorsten id: '338' last_name: Marten orcid: 0009-0001-6433-7839 - first_name: Thomas full_name: Tröster, Thomas id: '553' last_name: Tröster citation: ama: 'Ostermann M, Dierkes E, Marten T, Tröster T. Life Cycle Assessment of Lightweight Structures in Vehicles for New Mobility Concepts. In: Proceedings of the 18th Conference on Sustainable Development of Energy, Water and Environmental Systems, Dubrovnik, Croatia 2023. ; 2023.' apa: Ostermann, M., Dierkes, E., Marten, T., & Tröster, T. (2023). Life Cycle Assessment of Lightweight Structures in Vehicles for New Mobility Concepts. Proceedings of the 18th Conference on Sustainable Development of Energy, Water and Environmental Systems, Dubrovnik, Croatia 2023. 18th Conference on Sustainable Development of Energy, Water and Environmental Systems, Dubrovnik, Croatia. bibtex: '@inproceedings{Ostermann_Dierkes_Marten_Tröster_2023, title={Life Cycle Assessment of Lightweight Structures in Vehicles for New Mobility Concepts}, booktitle={Proceedings of the 18th Conference on Sustainable Development of Energy, Water and Environmental Systems, Dubrovnik, Croatia 2023}, author={Ostermann, Moritz and Dierkes, Eric and Marten, Thorsten and Tröster, Thomas}, year={2023} }' chicago: Ostermann, Moritz, Eric Dierkes, Thorsten Marten, and Thomas Tröster. “Life Cycle Assessment of Lightweight Structures in Vehicles for New Mobility Concepts.” In Proceedings of the 18th Conference on Sustainable Development of Energy, Water and Environmental Systems, Dubrovnik, Croatia 2023, 2023. ieee: M. Ostermann, E. Dierkes, T. Marten, and T. Tröster, “Life Cycle Assessment of Lightweight Structures in Vehicles for New Mobility Concepts,” presented at the 18th Conference on Sustainable Development of Energy, Water and Environmental Systems, Dubrovnik, Croatia, 2023. mla: Ostermann, Moritz, et al. “Life Cycle Assessment of Lightweight Structures in Vehicles for New Mobility Concepts.” Proceedings of the 18th Conference on Sustainable Development of Energy, Water and Environmental Systems, Dubrovnik, Croatia 2023, 2023. short: 'M. Ostermann, E. Dierkes, T. Marten, T. Tröster, in: Proceedings of the 18th Conference on Sustainable Development of Energy, Water and Environmental Systems, Dubrovnik, Croatia 2023, 2023.' conference: end_date: 2023-09-29 location: Dubrovnik, Croatia name: 18th Conference on Sustainable Development of Energy, Water and Environmental Systems start_date: 2023-09-24 date_created: 2025-08-07T06:56:09Z date_updated: 2026-02-17T10:36:25Z department: - _id: '9' - _id: '321' - _id: '149' language: - iso: eng publication: Proceedings of the 18th Conference on Sustainable Development of Energy, Water and Environmental Systems, Dubrovnik, Croatia 2023 publication_status: published status: public title: Life Cycle Assessment of Lightweight Structures in Vehicles for New Mobility Concepts type: conference_abstract user_id: '338' year: '2023' ... --- _id: '64045' abstract: - lang: eng text: Abstract In this work, we report on an improved cell assembly of cylindrical electrochemical cells for 23Na in-situ solid-state NMR (ssNMR) investigations. The cell set-up is suitable for using powder electrode materials. Reproducibility of our cell assembly is analyzed by preparing two cells containing hard carbon (HC) powder as working electrode and sodium metal as reference electrode. Electrochemical storage properties of HC powder electrode derived from carbonization of sustainable cellulose are studied by ssNMR. 23Na in-situ ssNMR monitors the sodiation/desodiation of a Na{\textbar}NaPF6{\textbar}HC cell (cell 1) over a period of 22?days, showing high cell stability. After the galvanostatic process, the HC powder material is investigated by high resolution 23Na ex-situ MAS NMR. The formation of ionic sodium species in different chemical environments is obtained. Subsequently, a second Na{\textbar}NaPF6{\textbar}HC cell (cell 2) is sodiated for 11?days achieving a capacity of 220?mAh/g. 23Na ex-situ MAS NMR measurements of the HC powder material extracted from this cell clearly indicate the presence of quasi-metallic sodium species next to ionic sodium species. This observation of quasi-metallic sodium species is discussed in terms of the achieved capacity of the cell as well as of side reactions of sodium in this electrode material. author: - first_name: Edina full_name: Šić, Edina last_name: Šić - first_name: Konstantin full_name: Schutjajew, Konstantin last_name: Schutjajew - first_name: Ulrich full_name: Haagen, Ulrich last_name: Haagen - first_name: Hergen full_name: Breitzke, Hergen last_name: Breitzke - first_name: Martin full_name: Oschatz, Martin last_name: Oschatz - first_name: Gerd full_name: Buntkowsky, Gerd last_name: Buntkowsky - first_name: Torsten full_name: Gutmann, Torsten id: '118165' last_name: Gutmann citation: ama: 'Šić E, Schutjajew K, Haagen U, et al. Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR. Chemsuschem. 2023;17:e202301300. doi:10.1002/cssc.202301300' apa: 'Šić, E., Schutjajew, K., Haagen, U., Breitzke, H., Oschatz, M., Buntkowsky, G., & Gutmann, T. (2023). Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR. Chemsuschem, 17, e202301300. https://doi.org/10.1002/cssc.202301300' bibtex: '@article{Šić_Schutjajew_Haagen_Breitzke_Oschatz_Buntkowsky_Gutmann_2023, title={Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR}, volume={17}, DOI={10.1002/cssc.202301300}, journal={Chemsuschem}, publisher={John Wiley & Sons, Ltd}, author={Šić, Edina and Schutjajew, Konstantin and Haagen, Ulrich and Breitzke, Hergen and Oschatz, Martin and Buntkowsky, Gerd and Gutmann, Torsten}, year={2023}, pages={e202301300} }' chicago: 'Šić, Edina, Konstantin Schutjajew, Ulrich Haagen, Hergen Breitzke, Martin Oschatz, Gerd Buntkowsky, and Torsten Gutmann. “Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR.” Chemsuschem 17 (2023): e202301300. https://doi.org/10.1002/cssc.202301300.' ieee: 'E. Šić et al., “Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR,” Chemsuschem, vol. 17, p. e202301300, 2023, doi: 10.1002/cssc.202301300.' mla: 'Šić, Edina, et al. “Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR.” Chemsuschem, vol. 17, John Wiley & Sons, Ltd, 2023, p. e202301300, doi:10.1002/cssc.202301300.' short: E. Šić, K. Schutjajew, U. Haagen, H. Breitzke, M. Oschatz, G. Buntkowsky, T. Gutmann, Chemsuschem 17 (2023) e202301300. date_created: 2026-02-07T16:12:13Z date_updated: 2026-02-17T16:13:10Z doi: 10.1002/cssc.202301300 extern: '1' intvolume: ' 17' keyword: - solid-state nmr - hard carbon - electrochemical cells - in-situ characterization - sodium language: - iso: eng page: e202301300 publication: Chemsuschem publication_identifier: issn: - 1864-5631 publisher: John Wiley & Sons, Ltd status: public title: 'Electrochemical Sodium Storage in Hard Carbon Powder Electrodes Implemented in an Improved Cell Assembly: Insights from In-Situ and Ex-Situ Solid-State NMR' type: journal_article user_id: '100715' volume: 17 year: '2023' ... --- _id: '64044' abstract: - lang: eng text: Abstract Polymer-derived silicon oxycarbide ceramics (SiCO) have been considered as potential anode materials for lithium- and sodium-ion batteries. To understand their electrochemical storage behavior, detailed insights into structural sites present in SiCO are required. In this work, the study of local structures in SiCO ceramics containing different amounts of carbon is presented. 13C and 29Si solid-state MAS?NMR spectroscopy combined with DFT calculations, atomistic modeling, and EPR investigations, suggest significant changes in the local structures of SiCO ceramics even by small changes in the material composition. The provided findings on SiCO structures will contribute to the research field of polymer-derived ceramics, especially to understand electrochemical storage processes of alkali metal/ions such as Na/Na+ inside such networks in the future. author: - first_name: Edina full_name: Šić, Edina last_name: Šić - first_name: Jochen full_name: Rohrer, Jochen last_name: Rohrer - first_name: Emmanuel full_name: Ricohermoso, Emmanuel last_name: Ricohermoso - first_name: Karsten full_name: Albe, Karsten last_name: Albe - first_name: Emmanuel full_name: Ionescu, Emmanuel last_name: Ionescu - first_name: Ralf full_name: Riedel, Ralf last_name: Riedel - first_name: Hergen full_name: Breitzke, Hergen last_name: Breitzke - first_name: Torsten full_name: Gutmann, Torsten id: '118165' last_name: Gutmann - first_name: Gerd full_name: Buntkowsky, Gerd last_name: Buntkowsky citation: ama: 'Šić E, Rohrer J, Ricohermoso E, et al. SiCO Ceramics as Storage Materials for Alkali Metals/Ions: Insights on Structure Moieties from Solid-State NMR and DFT Calculations. Chemsuschem. 2023;16:e202202241. doi:10.1002/cssc.202202241' apa: 'Šić, E., Rohrer, J., Ricohermoso, E., Albe, K., Ionescu, E., Riedel, R., Breitzke, H., Gutmann, T., & Buntkowsky, G. (2023). SiCO Ceramics as Storage Materials for Alkali Metals/Ions: Insights on Structure Moieties from Solid-State NMR and DFT Calculations. Chemsuschem, 16, e202202241. https://doi.org/10.1002/cssc.202202241' bibtex: '@article{Šić_Rohrer_Ricohermoso_Albe_Ionescu_Riedel_Breitzke_Gutmann_Buntkowsky_2023, title={SiCO Ceramics as Storage Materials for Alkali Metals/Ions: Insights on Structure Moieties from Solid-State NMR and DFT Calculations}, volume={16}, DOI={10.1002/cssc.202202241}, journal={Chemsuschem}, publisher={John Wiley & Sons, Ltd}, author={Šić, Edina and Rohrer, Jochen and Ricohermoso, Emmanuel and Albe, Karsten and Ionescu, Emmanuel and Riedel, Ralf and Breitzke, Hergen and Gutmann, Torsten and Buntkowsky, Gerd}, year={2023}, pages={e202202241} }' chicago: 'Šić, Edina, Jochen Rohrer, Emmanuel Ricohermoso, Karsten Albe, Emmanuel Ionescu, Ralf Riedel, Hergen Breitzke, Torsten Gutmann, and Gerd Buntkowsky. “SiCO Ceramics as Storage Materials for Alkali Metals/Ions: Insights on Structure Moieties from Solid-State NMR and DFT Calculations.” Chemsuschem 16 (2023): e202202241. https://doi.org/10.1002/cssc.202202241.' ieee: 'E. Šić et al., “SiCO Ceramics as Storage Materials for Alkali Metals/Ions: Insights on Structure Moieties from Solid-State NMR and DFT Calculations,” Chemsuschem, vol. 16, p. e202202241, 2023, doi: 10.1002/cssc.202202241.' mla: 'Šić, Edina, et al. “SiCO Ceramics as Storage Materials for Alkali Metals/Ions: Insights on Structure Moieties from Solid-State NMR and DFT Calculations.” Chemsuschem, vol. 16, John Wiley & Sons, Ltd, 2023, p. e202202241, doi:10.1002/cssc.202202241.' short: E. Šić, J. Rohrer, E. Ricohermoso, K. Albe, E. Ionescu, R. Riedel, H. Breitzke, T. Gutmann, G. Buntkowsky, Chemsuschem 16 (2023) e202202241. date_created: 2026-02-07T16:11:46Z date_updated: 2026-02-17T16:13:11Z doi: 10.1002/cssc.202202241 extern: '1' intvolume: ' 16' keyword: - NMR spectroscopy - Ceramics - defects - density functional calculations - EPR spectroscopy language: - iso: eng page: e202202241 publication: Chemsuschem publication_identifier: issn: - 1864-5631 publisher: John Wiley & Sons, Ltd status: public title: 'SiCO Ceramics as Storage Materials for Alkali Metals/Ions: Insights on Structure Moieties from Solid-State NMR and DFT Calculations' type: journal_article user_id: '100715' volume: 16 year: '2023' ... --- _id: '64040' abstract: - lang: eng text: The oxidative dehydrogenation (ODH) of propane is of great technical importance, and supported VOx catalysts have shown promising properties for the reaction. One of the most prominent and active supports is titania, which exhibits a high activity but many questions regarding the catalyst system are still in debate. In this study, we elucidate the mechanism of the propane ODH reaction over VOx/TiO2, using P25 and ALD (atomic layer deposition) synthesized TiO2/SBA-15 as a support, with X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), 51V solid-state (ss)NMR, operando multiwavelength Raman, operando UV–vis, and transient IR spectroscopies. Bare titania shows a small conversion, leading to carbon formation, and the reaction occurs at the interface between anatase and rutile. In comparison, in VOx/TiO2 catalysts, the activity shifts from titania to vanadia sites. UV-Raman spectroscopy and structural characterization data revealed the reaction to involve preferentially the V═O bonds of dimeric species rather than doubly bridged V–O–V bonds, which leads to higher propene selectivities. The active vanadium site shows a nuclearity-dependent behavior; that is, at higher loadings, when oligomeric vanadia is present, it shifts from V═O bonds to linear V–O–V bonds in oligomers, leading to less selective oxidation due to the better reducibility. Our operando/transient spectroscopic results demonstrate the direct participation of the titania support in the reaction by influencing the degree of vanadia oligomerization and enabling rapid hydrogen transfer from propane to vanadia via Ti–OH groups on anatase, accelerating the rate-determining step of the initial C–H bond breakage. The broader applicability of the results is confirmed by the behavior of the ALD-synthesized sample, which resembles that of P25. Our results highlight the detailed level of mechanistic understanding accessible from multiple spectroscopic approaches, which can be readily transferred to other materials and/or reactions. The oxidative dehydrogenation (ODH) of propane is of great technical importance, and supported VOx catalysts have shown promising properties for the reaction. One of the most prominent and active supports is titania, which exhibits a high activity but many questions regarding the catalyst system are still in debate. In this study, we elucidate the mechanism of the propane ODH reaction over VOx/TiO2, using P25 and ALD (atomic layer deposition) synthesized TiO2/SBA-15 as a support, with X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), 51V solid-state (ss)NMR, operando multiwavelength Raman, operando UV–vis, and transient IR spectroscopies. Bare titania shows a small conversion, leading to carbon formation, and the reaction occurs at the interface between anatase and rutile. In comparison, in VOx/TiO2 catalysts, the activity shifts from titania to vanadia sites. UV-Raman spectroscopy and structural characterization data revealed the reaction to involve preferentially the V═O bonds of dimeric species rather than doubly bridged V–O–V bonds, which leads to higher propene selectivities. The active vanadium site shows a nuclearity-dependent behavior; that is, at higher loadings, when oligomeric vanadia is present, it shifts from V═O bonds to linear V–O–V bonds in oligomers, leading to less selective oxidation due to the better reducibility. Our operando/transient spectroscopic results demonstrate the direct participation of the titania support in the reaction by influencing the degree of vanadia oligomerization and enabling rapid hydrogen transfer from propane to vanadia via Ti–OH groups on anatase, accelerating the rate-determining step of the initial C–H bond breakage. The broader applicability of the results is confirmed by the behavior of the ALD-synthesized sample, which resembles that of P25. Our results highlight the detailed level of mechanistic understanding accessible from multiple spectroscopic approaches, which can be readily transferred to other materials and/or reactions. author: - first_name: Leon full_name: Schumacher, Leon last_name: Schumacher - first_name: Johannes full_name: Pfeiffer, Johannes last_name: Pfeiffer - first_name: Jun full_name: Shen, Jun last_name: Shen - first_name: Torsten full_name: Gutmann, Torsten id: '118165' last_name: Gutmann - first_name: Hergen full_name: Breitzke, Hergen last_name: Breitzke - first_name: Gerd full_name: Buntkowsky, Gerd last_name: Buntkowsky - first_name: Kathrin full_name: Hofmann, Kathrin last_name: Hofmann - first_name: Christian full_name: Hess, Christian last_name: Hess citation: ama: Schumacher L, Pfeiffer J, Shen J, et al. Collaborative Mechanistic Effects between Vanadia and Titania during the Oxidative Dehydrogenation of Propane Investigated by Operando and Transient Spectroscopies. ACS Catalysis. 2023;13(12):8139–8160. doi:10.1021/acscatal.3c01404 apa: Schumacher, L., Pfeiffer, J., Shen, J., Gutmann, T., Breitzke, H., Buntkowsky, G., Hofmann, K., & Hess, C. (2023). Collaborative Mechanistic Effects between Vanadia and Titania during the Oxidative Dehydrogenation of Propane Investigated by Operando and Transient Spectroscopies. ACS Catalysis, 13(12), 8139–8160. https://doi.org/10.1021/acscatal.3c01404 bibtex: '@article{Schumacher_Pfeiffer_Shen_Gutmann_Breitzke_Buntkowsky_Hofmann_Hess_2023, title={Collaborative Mechanistic Effects between Vanadia and Titania during the Oxidative Dehydrogenation of Propane Investigated by Operando and Transient Spectroscopies}, volume={13}, DOI={10.1021/acscatal.3c01404}, number={12}, journal={ACS Catalysis}, publisher={American Chemical Society}, author={Schumacher, Leon and Pfeiffer, Johannes and Shen, Jun and Gutmann, Torsten and Breitzke, Hergen and Buntkowsky, Gerd and Hofmann, Kathrin and Hess, Christian}, year={2023}, pages={8139–8160} }' chicago: 'Schumacher, Leon, Johannes Pfeiffer, Jun Shen, Torsten Gutmann, Hergen Breitzke, Gerd Buntkowsky, Kathrin Hofmann, and Christian Hess. “Collaborative Mechanistic Effects between Vanadia and Titania during the Oxidative Dehydrogenation of Propane Investigated by Operando and Transient Spectroscopies.” ACS Catalysis 13, no. 12 (2023): 8139–8160. https://doi.org/10.1021/acscatal.3c01404.' ieee: 'L. Schumacher et al., “Collaborative Mechanistic Effects between Vanadia and Titania during the Oxidative Dehydrogenation of Propane Investigated by Operando and Transient Spectroscopies,” ACS Catalysis, vol. 13, no. 12, pp. 8139–8160, 2023, doi: 10.1021/acscatal.3c01404.' mla: Schumacher, Leon, et al. “Collaborative Mechanistic Effects between Vanadia and Titania during the Oxidative Dehydrogenation of Propane Investigated by Operando and Transient Spectroscopies.” ACS Catalysis, vol. 13, no. 12, American Chemical Society, 2023, pp. 8139–8160, doi:10.1021/acscatal.3c01404. short: L. Schumacher, J. Pfeiffer, J. Shen, T. Gutmann, H. Breitzke, G. Buntkowsky, K. Hofmann, C. Hess, ACS Catalysis 13 (2023) 8139–8160. date_created: 2026-02-07T16:09:39Z date_updated: 2026-02-17T16:13:23Z doi: 10.1021/acscatal.3c01404 extern: '1' intvolume: ' 13' issue: '12' language: - iso: eng page: 8139–8160 publication: ACS Catalysis publisher: American Chemical Society status: public title: Collaborative Mechanistic Effects between Vanadia and Titania during the Oxidative Dehydrogenation of Propane Investigated by Operando and Transient Spectroscopies type: journal_article user_id: '100715' volume: 13 year: '2023' ... --- _id: '64008' abstract: - lang: eng text: The tailored design of bioactive materials based on cellulose or paper is still a challenging task. It requires detailed knowledge of the structure and interaction of the biofunctionalization with the carrier material at the nanoscale. In this work, the small peptide sequence Acetyl-Pro-Ala-Phe-Gly-OH (peptide 1) that can serve as a model for biofunctionalization is synthesized via solid-phase peptide synthesis, purified, and characterized by high-performance liquid chromatography (HPLC) and mass spectrometry (MS). The as-obtained peptide is bound to microcrystalline cellulose (MCC) via a wet chemical approach. Quantification of the peptide on the MCC carrier is performed by replacing l-proline (Pro) in the peptide sequence by 4-fluoro-l-proline (Pro(19F)) (peptide 2) and applying 19F magic angle spinning nuclear magnetic resonance (MAS NMR). Detailed characterization of the model system is provided by using 1H → 13C cross-polarization magic angle spinning (CP MAS NMR) combined with dynamic nuclear polarization (DNP) to enhance sensitivity. Analysis of the binding of the peptide on MCC necessitates the replacement of l-glycine (Gly) in the sequence by 13C-labeled l-glycine (Gly(13C)) (peptide 3). DNP-enhanced 13C–13C correlation experiments carried out with dipolar assisted rotational resonance (DARR) are then used to analyze the proximity between the model peptide and the MCC carrier. The strength of the dipolar coupling is estimated from the DNP-enhanced 1H → 13C CP MAS double-quantum rotational resonance (DQrotres) experiment. The obtained dipolar coupling between the 13C═O carbon of peptide 3 and the C6 carbon of the cellulose is equal to a carbon–carbon distance of about two C–O bond lengths, which strongly suggests the binding of significant amounts of the peptide on MCC via an ester bond. The tailored design of bioactive materials based on cellulose or paper is still a challenging task. It requires detailed knowledge of the structure and interaction of the biofunctionalization with the carrier material at the nanoscale. In this work, the small peptide sequence Acetyl-Pro-Ala-Phe-Gly-OH (peptide 1) that can serve as a model for biofunctionalization is synthesized via solid-phase peptide synthesis, purified, and characterized by high-performance liquid chromatography (HPLC) and mass spectrometry (MS). The as-obtained peptide is bound to microcrystalline cellulose (MCC) via a wet chemical approach. Quantification of the peptide on the MCC carrier is performed by replacing l-proline (Pro) in the peptide sequence by 4-fluoro-l-proline (Pro(19F)) (peptide 2) and applying 19F magic angle spinning nuclear magnetic resonance (MAS NMR). Detailed characterization of the model system is provided by using 1H → 13C cross-polarization magic angle spinning (CP MAS NMR) combined with dynamic nuclear polarization (DNP) to enhance sensitivity. Analysis of the binding of the peptide on MCC necessitates the replacement of l-glycine (Gly) in the sequence by 13C-labeled l-glycine (Gly(13C)) (peptide 3). DNP-enhanced 13C–13C correlation experiments carried out with dipolar assisted rotational resonance (DARR) are then used to analyze the proximity between the model peptide and the MCC carrier. The strength of the dipolar coupling is estimated from the DNP-enhanced 1H → 13C CP MAS double-quantum rotational resonance (DQrotres) experiment. The obtained dipolar coupling between the 13C═O carbon of peptide 3 and the C6 carbon of the cellulose is equal to a carbon–carbon distance of about two C–O bond lengths, which strongly suggests the binding of significant amounts of the peptide on MCC via an ester bond. author: - first_name: Waranya full_name: Limprasart, Waranya last_name: Limprasart - first_name: Mark Valentin full_name: Höfler, Mark Valentin last_name: Höfler - first_name: Nico full_name: Kunzmann, Nico last_name: Kunzmann - first_name: Lorenz full_name: Rösler, Lorenz last_name: Rösler - first_name: Kevin full_name: Herr, Kevin last_name: Herr - first_name: Hergen full_name: Breitzke, Hergen last_name: Breitzke - first_name: Torsten full_name: Gutmann, Torsten id: '118165' last_name: Gutmann citation: ama: Limprasart W, Höfler MV, Kunzmann N, et al. Peptides as Model Systems for Biofunctionalizations of Cellulose─Synthesis and Structural Characterization by Advanced Solid-State Nuclear Magnetic Resonance Techniques. The Journal of Physical Chemistry C. 2023;127(45):22129–22138. doi:10.1021/acs.jpcc.3c05068 apa: Limprasart, W., Höfler, M. V., Kunzmann, N., Rösler, L., Herr, K., Breitzke, H., & Gutmann, T. (2023). Peptides as Model Systems for Biofunctionalizations of Cellulose─Synthesis and Structural Characterization by Advanced Solid-State Nuclear Magnetic Resonance Techniques. The Journal of Physical Chemistry C, 127(45), 22129–22138. https://doi.org/10.1021/acs.jpcc.3c05068 bibtex: '@article{Limprasart_Höfler_Kunzmann_Rösler_Herr_Breitzke_Gutmann_2023, title={Peptides as Model Systems for Biofunctionalizations of Cellulose─Synthesis and Structural Characterization by Advanced Solid-State Nuclear Magnetic Resonance Techniques}, volume={127}, DOI={10.1021/acs.jpcc.3c05068}, number={45}, journal={The Journal of Physical Chemistry C}, publisher={American Chemical Society}, author={Limprasart, Waranya and Höfler, Mark Valentin and Kunzmann, Nico and Rösler, Lorenz and Herr, Kevin and Breitzke, Hergen and Gutmann, Torsten}, year={2023}, pages={22129–22138} }' chicago: 'Limprasart, Waranya, Mark Valentin Höfler, Nico Kunzmann, Lorenz Rösler, Kevin Herr, Hergen Breitzke, and Torsten Gutmann. “Peptides as Model Systems for Biofunctionalizations of Cellulose─Synthesis and Structural Characterization by Advanced Solid-State Nuclear Magnetic Resonance Techniques.” The Journal of Physical Chemistry C 127, no. 45 (2023): 22129–22138. https://doi.org/10.1021/acs.jpcc.3c05068.' ieee: 'W. Limprasart et al., “Peptides as Model Systems for Biofunctionalizations of Cellulose─Synthesis and Structural Characterization by Advanced Solid-State Nuclear Magnetic Resonance Techniques,” The Journal of Physical Chemistry C, vol. 127, no. 45, pp. 22129–22138, 2023, doi: 10.1021/acs.jpcc.3c05068.' mla: Limprasart, Waranya, et al. “Peptides as Model Systems for Biofunctionalizations of Cellulose─Synthesis and Structural Characterization by Advanced Solid-State Nuclear Magnetic Resonance Techniques.” The Journal of Physical Chemistry C, vol. 127, no. 45, American Chemical Society, 2023, pp. 22129–22138, doi:10.1021/acs.jpcc.3c05068. short: W. Limprasart, M.V. Höfler, N. Kunzmann, L. Rösler, K. Herr, H. Breitzke, T. Gutmann, The Journal of Physical Chemistry C 127 (2023) 22129–22138. date_created: 2026-02-07T15:56:43Z date_updated: 2026-02-17T16:15:27Z doi: 10.1021/acs.jpcc.3c05068 extern: '1' intvolume: ' 127' issue: '45' language: - iso: eng page: 22129–22138 publication: The Journal of Physical Chemistry C publication_identifier: issn: - 1932-7447 publisher: American Chemical Society status: public title: Peptides as Model Systems for Biofunctionalizations of Cellulose─Synthesis and Structural Characterization by Advanced Solid-State Nuclear Magnetic Resonance Techniques type: journal_article user_id: '100715' volume: 127 year: '2023' ... --- _id: '63998' abstract: - lang: eng text: Abstract The mechanochemical synthesis of porous covalent triazine networks (CTNs), exhibiting theoretically ideal C/N ratios and high specific surface areas, is presented. Employing this solvent-free approach allows to minimize the ecological impact of the synthesis by bypassing hazardous wastes, while simultaneously observing the reactions between the individual starting materials separately for the first time. Especially the role of dichloromethane needs to be reconsidered, functioning as a linker between the nitrogen-containing node cyanuric chloride and the aromatic monomer 1,3,5-triphenylbenzene, as proven by X-ray photoelectron spectroscopy and 1H → 13C Cross-Polarization magic-angle-spinning nuclear magnetic resonance spectroscopy. This results in a drastic enhancement of the reaction rate, reducing the synthesis time down to 1 minute. Additionally, this linkage over a C1 bridge enables the incorporation of nitrogen into already synthesized polymers by post polymerization functionalization. The variation of the synthesis building blocks, namely the linker, node, and monomer, results in a variety of nitrogen-containing polymers with specific surface areas of up to 1500 m2 g−1. Therefore, the presented approach is capable to target the synthesis of various CTNs with a minimal use of chlorinated linker, rendering the concept as a sustainable alternative to the classical solution-based synthesis. author: - first_name: Annika full_name: Krusenbaum, Annika last_name: Krusenbaum - first_name: Fabien Joel Leon full_name: Kraus, Fabien Joel Leon last_name: Kraus - first_name: Stefanie full_name: Hutsch, Stefanie last_name: Hutsch - first_name: Sven full_name: Grätz, Sven last_name: Grätz - first_name: Mark Valentin full_name: Höfler, Mark Valentin last_name: Höfler - first_name: Torsten full_name: Gutmann, Torsten id: '118165' last_name: Gutmann - first_name: Lars full_name: Borchardt, Lars last_name: Borchardt citation: ama: 'Krusenbaum A, Kraus FJL, Hutsch S, et al. The Rapid Mechanochemical Synthesis of Microporous Covalent Triazine Networks: Elucidating the Role of Chlorinated Linkers by a Solvent-Free Approach. Advanced Sustainable Systems. Published online 2023:2200477. doi:10.1002/adsu.202200477' apa: 'Krusenbaum, A., Kraus, F. J. L., Hutsch, S., Grätz, S., Höfler, M. V., Gutmann, T., & Borchardt, L. (2023). The Rapid Mechanochemical Synthesis of Microporous Covalent Triazine Networks: Elucidating the Role of Chlorinated Linkers by a Solvent-Free Approach. Advanced Sustainable Systems, 2200477. https://doi.org/10.1002/adsu.202200477' bibtex: '@article{Krusenbaum_Kraus_Hutsch_Grätz_Höfler_Gutmann_Borchardt_2023, title={The Rapid Mechanochemical Synthesis of Microporous Covalent Triazine Networks: Elucidating the Role of Chlorinated Linkers by a Solvent-Free Approach}, DOI={10.1002/adsu.202200477}, journal={Advanced Sustainable Systems}, author={Krusenbaum, Annika and Kraus, Fabien Joel Leon and Hutsch, Stefanie and Grätz, Sven and Höfler, Mark Valentin and Gutmann, Torsten and Borchardt, Lars}, year={2023}, pages={2200477} }' chicago: 'Krusenbaum, Annika, Fabien Joel Leon Kraus, Stefanie Hutsch, Sven Grätz, Mark Valentin Höfler, Torsten Gutmann, and Lars Borchardt. “The Rapid Mechanochemical Synthesis of Microporous Covalent Triazine Networks: Elucidating the Role of Chlorinated Linkers by a Solvent-Free Approach.” Advanced Sustainable Systems, 2023, 2200477. https://doi.org/10.1002/adsu.202200477.' ieee: 'A. Krusenbaum et al., “The Rapid Mechanochemical Synthesis of Microporous Covalent Triazine Networks: Elucidating the Role of Chlorinated Linkers by a Solvent-Free Approach,” Advanced Sustainable Systems, p. 2200477, 2023, doi: 10.1002/adsu.202200477.' mla: 'Krusenbaum, Annika, et al. “The Rapid Mechanochemical Synthesis of Microporous Covalent Triazine Networks: Elucidating the Role of Chlorinated Linkers by a Solvent-Free Approach.” Advanced Sustainable Systems, 2023, p. 2200477, doi:10.1002/adsu.202200477.' short: A. Krusenbaum, F.J.L. Kraus, S. Hutsch, S. Grätz, M.V. Höfler, T. Gutmann, L. Borchardt, Advanced Sustainable Systems (2023) 2200477. date_created: 2026-02-07T15:51:19Z date_updated: 2026-02-17T16:15:58Z doi: 10.1002/adsu.202200477 extern: '1' language: - iso: eng page: '2200477' publication: Advanced Sustainable Systems status: public title: 'The Rapid Mechanochemical Synthesis of Microporous Covalent Triazine Networks: Elucidating the Role of Chlorinated Linkers by a Solvent-Free Approach' type: journal_article user_id: '100715' year: '2023' ... --- _id: '63984' abstract: - lang: eng text: This study is seeking a better understanding of polyethylene glycol (PEG) as a solvent to promote its use in chemical synthesis. The effect of adding two solutes of interest, 2,2,6,6-tetramethylpiperidinyloxyl (TEMPO) and 5-tert-butylisophthalic acid (5-TBIPA) to PEG200 (average molar weight of 200 g·mol−1) on the solution density, viscosity, and self-diffusion coefficients is monitored in a temperature range of 298.15–358.15 K to deduce how these solutes interact with the PEG200 solvent. The effect of water, the most common impurity in PEGs, is also monitored and found to be nearly negligibly small. Addition of (5-TBIPA) increases solution density and viscosity. Combined with the observation that 5-TBIPA consistently self-diffuses at about half the rate as PEG200 at all investigated experimental conditions, this suggests strong attractive solute–solvent interactions likely through hydrogen bonding interactions. In contrast, addition of TEMPO causes lower solution densities and viscosities suggesting that the solute–solvent interactions of TEMPO lead to an overall weakening of the intermolecular interactions present compared to neat PEG200. Inspection of the viscosity and self-diffusion temperature dependence reveals slight deviations from the Arrhenius equation. Interestingly, the activation energies obtained from the viscosity and the self-diffusion data are essentially identical in values suggesting that the same dynamic processes and thus the same activation barriers govern translational motion and momentum transfer in these PEG200 solutions. author: - first_name: Markus M. full_name: Hoffmann, Markus M. last_name: Hoffmann - first_name: Nathaniel P. full_name: Randall, Nathaniel P. last_name: Randall - first_name: Miray H. full_name: Apak, Miray H. last_name: Apak - first_name: Nathaniel A. full_name: Paddock, Nathaniel A. last_name: Paddock - first_name: Torsten full_name: Gutmann, Torsten id: '118165' last_name: Gutmann - first_name: Gerd full_name: Buntkowsky, Gerd last_name: Buntkowsky citation: ama: Hoffmann MM, Randall NP, Apak MH, Paddock NA, Gutmann T, Buntkowsky G. Solute–Solvent Interactions of 2,2,6,6-Tetramethylpiperidinyloxyl and 5-Tert-Butylisophthalic Acid in Polyethylene Glycol as Observed by Measurements of Density, Viscosity, and Self-Diffusion Coefficient. Journal of Solution Chemistry. 2023;52(6):685–707. doi:10.1007/s10953-023-01265-4 apa: Hoffmann, M. M., Randall, N. P., Apak, M. H., Paddock, N. A., Gutmann, T., & Buntkowsky, G. (2023). Solute–Solvent Interactions of 2,2,6,6-Tetramethylpiperidinyloxyl and 5-Tert-Butylisophthalic Acid in Polyethylene Glycol as Observed by Measurements of Density, Viscosity, and Self-Diffusion Coefficient. Journal of Solution Chemistry, 52(6), 685–707. https://doi.org/10.1007/s10953-023-01265-4 bibtex: '@article{Hoffmann_Randall_Apak_Paddock_Gutmann_Buntkowsky_2023, title={Solute–Solvent Interactions of 2,2,6,6-Tetramethylpiperidinyloxyl and 5-Tert-Butylisophthalic Acid in Polyethylene Glycol as Observed by Measurements of Density, Viscosity, and Self-Diffusion Coefficient}, volume={52}, DOI={10.1007/s10953-023-01265-4}, number={6}, journal={Journal of Solution Chemistry}, author={Hoffmann, Markus M. and Randall, Nathaniel P. and Apak, Miray H. and Paddock, Nathaniel A. and Gutmann, Torsten and Buntkowsky, Gerd}, year={2023}, pages={685–707} }' chicago: 'Hoffmann, Markus M., Nathaniel P. Randall, Miray H. Apak, Nathaniel A. Paddock, Torsten Gutmann, and Gerd Buntkowsky. “Solute–Solvent Interactions of 2,2,6,6-Tetramethylpiperidinyloxyl and 5-Tert-Butylisophthalic Acid in Polyethylene Glycol as Observed by Measurements of Density, Viscosity, and Self-Diffusion Coefficient.” Journal of Solution Chemistry 52, no. 6 (2023): 685–707. https://doi.org/10.1007/s10953-023-01265-4.' ieee: 'M. M. Hoffmann, N. P. Randall, M. H. Apak, N. A. Paddock, T. Gutmann, and G. Buntkowsky, “Solute–Solvent Interactions of 2,2,6,6-Tetramethylpiperidinyloxyl and 5-Tert-Butylisophthalic Acid in Polyethylene Glycol as Observed by Measurements of Density, Viscosity, and Self-Diffusion Coefficient,” Journal of Solution Chemistry, vol. 52, no. 6, pp. 685–707, 2023, doi: 10.1007/s10953-023-01265-4.' mla: Hoffmann, Markus M., et al. “Solute–Solvent Interactions of 2,2,6,6-Tetramethylpiperidinyloxyl and 5-Tert-Butylisophthalic Acid in Polyethylene Glycol as Observed by Measurements of Density, Viscosity, and Self-Diffusion Coefficient.” Journal of Solution Chemistry, vol. 52, no. 6, 2023, pp. 685–707, doi:10.1007/s10953-023-01265-4. short: M.M. Hoffmann, N.P. Randall, M.H. Apak, N.A. Paddock, T. Gutmann, G. Buntkowsky, Journal of Solution Chemistry 52 (2023) 685–707. date_created: 2026-02-07T15:45:09Z date_updated: 2026-02-17T16:16:51Z doi: 10.1007/s10953-023-01265-4 extern: '1' intvolume: ' 52' issue: '6' language: - iso: eng page: 685–707 publication: Journal of Solution Chemistry status: public title: Solute–Solvent Interactions of 2,2,6,6-Tetramethylpiperidinyloxyl and 5-Tert-Butylisophthalic Acid in Polyethylene Glycol as Observed by Measurements of Density, Viscosity, and Self-Diffusion Coefficient type: journal_article user_id: '100715' volume: 52 year: '2023' ... --- _id: '63987' abstract: - lang: eng text: An efficient approach employing 4-dimethylaminopyridine and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride as the coupling reagent is presented, which enables the functionalization of cotton linter paper substrates with the 19F spin label N-boc-cis-4-fluoro-l-proline. This spin label can be easily quantified by 19F magic angle spinning (MAS) NMR experiments to determine its loading on paper substrates. During the functionalization, the spin label stays intact, as confirmed by the 1H–19F heterocorrelation (1H → 19F CP MAS FSLG HETCOR) experiments. In combination with dynamic nuclear polarization (19F MAS DNP), the N-boc-cis-4-fluoro-l-proline spin label allows us to inspect 1 μmol/g and even lower molecule loadings on paper substrates, providing a highly sensitive local probe to analyze the structure of biofunctionalizations at the nanoscale on paper substrates in the future. An efficient approach employing 4-dimethylaminopyridine and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride as the coupling reagent is presented, which enables the functionalization of cotton linter paper substrates with the 19F spin label N-boc-cis-4-fluoro-l-proline. This spin label can be easily quantified by 19F magic angle spinning (MAS) NMR experiments to determine its loading on paper substrates. During the functionalization, the spin label stays intact, as confirmed by the 1H–19F heterocorrelation (1H → 19F CP MAS FSLG HETCOR) experiments. In combination with dynamic nuclear polarization (19F MAS DNP), the N-boc-cis-4-fluoro-l-proline spin label allows us to inspect 1 μmol/g and even lower molecule loadings on paper substrates, providing a highly sensitive local probe to analyze the structure of biofunctionalizations at the nanoscale on paper substrates in the future. author: - first_name: Mark V. full_name: Höfler, Mark V. last_name: Höfler - first_name: Waranya full_name: Limprasart, Waranya last_name: Limprasart - first_name: Lorenz full_name: Rösler, Lorenz last_name: Rösler - first_name: Max full_name: Fleckenstein, Max last_name: Fleckenstein - first_name: Martin full_name: Brodrecht, Martin last_name: Brodrecht - first_name: Kevin full_name: Herr, Kevin last_name: Herr - first_name: Jan-Lukas full_name: Schäfer, Jan-Lukas last_name: Schäfer - first_name: Markus full_name: Biesalski, Markus last_name: Biesalski - first_name: Hergen full_name: Breitzke, Hergen last_name: Breitzke - first_name: Torsten full_name: Gutmann, Torsten id: '118165' last_name: Gutmann citation: ama: Höfler MV, Limprasart W, Rösler L, et al. Fluorine-Labeled N-Boc-l-proline as a Marker for Solid-State NMR Characterization of Biofunctionalizations on Paper Substrates. Journal of Physical Chemistry C. 2023;127(7):3570–3578. apa: Höfler, M. V., Limprasart, W., Rösler, L., Fleckenstein, M., Brodrecht, M., Herr, K., Schäfer, J.-L., Biesalski, M., Breitzke, H., & Gutmann, T. (2023). Fluorine-Labeled N-Boc-l-proline as a Marker for Solid-State NMR Characterization of Biofunctionalizations on Paper Substrates. Journal of Physical Chemistry C, 127(7), 3570–3578. bibtex: '@article{Höfler_Limprasart_Rösler_Fleckenstein_Brodrecht_Herr_Schäfer_Biesalski_Breitzke_Gutmann_2023, title={Fluorine-Labeled N-Boc-l-proline as a Marker for Solid-State NMR Characterization of Biofunctionalizations on Paper Substrates}, volume={127}, number={7}, journal={Journal of Physical Chemistry C}, publisher={American Chemical Society}, author={Höfler, Mark V. and Limprasart, Waranya and Rösler, Lorenz and Fleckenstein, Max and Brodrecht, Martin and Herr, Kevin and Schäfer, Jan-Lukas and Biesalski, Markus and Breitzke, Hergen and Gutmann, Torsten}, year={2023}, pages={3570–3578} }' chicago: 'Höfler, Mark V., Waranya Limprasart, Lorenz Rösler, Max Fleckenstein, Martin Brodrecht, Kevin Herr, Jan-Lukas Schäfer, Markus Biesalski, Hergen Breitzke, and Torsten Gutmann. “Fluorine-Labeled N-Boc-l-Proline as a Marker for Solid-State NMR Characterization of Biofunctionalizations on Paper Substrates.” Journal of Physical Chemistry C 127, no. 7 (2023): 3570–3578.' ieee: M. V. Höfler et al., “Fluorine-Labeled N-Boc-l-proline as a Marker for Solid-State NMR Characterization of Biofunctionalizations on Paper Substrates,” Journal of Physical Chemistry C, vol. 127, no. 7, pp. 3570–3578, 2023. mla: Höfler, Mark V., et al. “Fluorine-Labeled N-Boc-l-Proline as a Marker for Solid-State NMR Characterization of Biofunctionalizations on Paper Substrates.” Journal of Physical Chemistry C, vol. 127, no. 7, American Chemical Society, 2023, pp. 3570–3578. short: M.V. Höfler, W. Limprasart, L. Rösler, M. Fleckenstein, M. Brodrecht, K. Herr, J.-L. Schäfer, M. Biesalski, H. Breitzke, T. Gutmann, Journal of Physical Chemistry C 127 (2023) 3570–3578. date_created: 2026-02-07T15:46:14Z date_updated: 2026-02-17T16:16:46Z extern: '1' intvolume: ' 127' issue: '7' language: - iso: eng page: 3570–3578 publication: Journal of Physical Chemistry C publication_identifier: issn: - 1932-7447 publisher: American Chemical Society status: public title: Fluorine-Labeled N-Boc-l-proline as a Marker for Solid-State NMR Characterization of Biofunctionalizations on Paper Substrates type: journal_article user_id: '100715' volume: 127 year: '2023' ... --- _id: '63971' abstract: - lang: eng text: 'The physicochemical effects of decorating pore walls of high surface area materials with functional groups are not sufficiently understood, despite the use of these materials in a multitude of applications such as catalysis, separations, or drug delivery. In this study, the influence of 3-amino-propyl triethoxysilane (APTES)-modified SBA-15 on the dynamics of deuterated ethylene glycol (EG-d4) is inspected by comparing three systems: EG-d4 in the bulk phase (sample 1), EG-d4 confined in SBA-15 (sample 2), and EG-d4 confined in SBA-15 modified with APTES (sample 3). The phase behavior (i.e., melting, crystallization, glass formation, etc.) of EG-d4 in these three systems is studied by differential scanning calorimetry. Through line shape analysis of the 2H solid-state NMR (2H ssNMR) spectra of the three systems recorded at different temperatures, two signal patterns, (i) a Lorentzian (liquid-like) and (ii) a Pake pattern (solid-like), are identified from which the distribution of activation energies for the dynamic processes is calculated employing a two-phase model. The physicochemical effects of decorating pore walls of high surface area materials with functional groups are not sufficiently understood, despite the use of these materials in a multitude of applications such as catalysis, separations, or drug delivery. In this study, the influence of 3-amino-propyl triethoxysilane (APTES)-modified SBA-15 on the dynamics of deuterated ethylene glycol (EG-d4) is inspected by comparing three systems: EG-d4 in the bulk phase (sample 1), EG-d4 confined in SBA-15 (sample 2), and EG-d4 confined in SBA-15 modified with APTES (sample 3). The phase behavior (i.e., melting, crystallization, glass formation, etc.) of EG-d4 in these three systems is studied by differential scanning calorimetry. Through line shape analysis of the 2H solid-state NMR (2H ssNMR) spectra of the three systems recorded at different temperatures, two signal patterns, (i) a Lorentzian (liquid-like) and (ii) a Pake pattern (solid-like), are identified from which the distribution of activation energies for the dynamic processes is calculated employing a two-phase model.' author: - first_name: Nadia B. full_name: Haro Mares, Nadia B. last_name: Haro Mares - first_name: Martin full_name: Brodrecht, Martin last_name: Brodrecht - first_name: Till full_name: Wissel, Till last_name: Wissel - first_name: Sonja C. full_name: Döller, Sonja C. last_name: Döller - first_name: Lorenz full_name: Rösler, Lorenz last_name: Rösler - first_name: Hergen full_name: Breitzke, Hergen last_name: Breitzke - first_name: Markus M. full_name: Hoffmann, Markus M. last_name: Hoffmann - first_name: Torsten full_name: Gutmann, Torsten id: '118165' last_name: Gutmann - first_name: Gerd full_name: Buntkowsky, Gerd last_name: Buntkowsky citation: ama: Haro Mares NB, Brodrecht M, Wissel T, et al. Influence of APTES-Decorated Mesoporous Silica on the Dynamics of Ethylene Glycol Molecules─Insights from Variable Temperature 2H Solid-State NMR. The Journal of Physical Chemistry C. 2023;127(39):19735–19746. doi:10.1021/acs.jpcc.3c03671 apa: Haro Mares, N. B., Brodrecht, M., Wissel, T., Döller, S. C., Rösler, L., Breitzke, H., Hoffmann, M. M., Gutmann, T., & Buntkowsky, G. (2023). Influence of APTES-Decorated Mesoporous Silica on the Dynamics of Ethylene Glycol Molecules─Insights from Variable Temperature 2H Solid-State NMR. The Journal of Physical Chemistry C, 127(39), 19735–19746. https://doi.org/10.1021/acs.jpcc.3c03671 bibtex: '@article{Haro Mares_Brodrecht_Wissel_Döller_Rösler_Breitzke_Hoffmann_Gutmann_Buntkowsky_2023, title={Influence of APTES-Decorated Mesoporous Silica on the Dynamics of Ethylene Glycol Molecules─Insights from Variable Temperature 2H Solid-State NMR}, volume={127}, DOI={10.1021/acs.jpcc.3c03671}, number={39}, journal={The Journal of Physical Chemistry C}, publisher={American Chemical Society}, author={Haro Mares, Nadia B. and Brodrecht, Martin and Wissel, Till and Döller, Sonja C. and Rösler, Lorenz and Breitzke, Hergen and Hoffmann, Markus M. and Gutmann, Torsten and Buntkowsky, Gerd}, year={2023}, pages={19735–19746} }' chicago: 'Haro Mares, Nadia B., Martin Brodrecht, Till Wissel, Sonja C. Döller, Lorenz Rösler, Hergen Breitzke, Markus M. Hoffmann, Torsten Gutmann, and Gerd Buntkowsky. “Influence of APTES-Decorated Mesoporous Silica on the Dynamics of Ethylene Glycol Molecules─Insights from Variable Temperature 2H Solid-State NMR.” The Journal of Physical Chemistry C 127, no. 39 (2023): 19735–19746. https://doi.org/10.1021/acs.jpcc.3c03671.' ieee: 'N. B. Haro Mares et al., “Influence of APTES-Decorated Mesoporous Silica on the Dynamics of Ethylene Glycol Molecules─Insights from Variable Temperature 2H Solid-State NMR,” The Journal of Physical Chemistry C, vol. 127, no. 39, pp. 19735–19746, 2023, doi: 10.1021/acs.jpcc.3c03671.' mla: Haro Mares, Nadia B., et al. “Influence of APTES-Decorated Mesoporous Silica on the Dynamics of Ethylene Glycol Molecules─Insights from Variable Temperature 2H Solid-State NMR.” The Journal of Physical Chemistry C, vol. 127, no. 39, American Chemical Society, 2023, pp. 19735–19746, doi:10.1021/acs.jpcc.3c03671. short: N.B. Haro Mares, M. Brodrecht, T. Wissel, S.C. Döller, L. Rösler, H. Breitzke, M.M. Hoffmann, T. Gutmann, G. Buntkowsky, The Journal of Physical Chemistry C 127 (2023) 19735–19746. date_created: 2026-02-07T15:40:57Z date_updated: 2026-02-17T16:17:28Z doi: 10.1021/acs.jpcc.3c03671 extern: '1' intvolume: ' 127' issue: '39' language: - iso: eng page: 19735–19746 publication: The Journal of Physical Chemistry C publication_identifier: issn: - 1932-7447 publisher: American Chemical Society status: public title: Influence of APTES-Decorated Mesoporous Silica on the Dynamics of Ethylene Glycol Molecules─Insights from Variable Temperature 2H Solid-State NMR type: journal_article user_id: '100715' volume: 127 year: '2023' ... --- _id: '63946' abstract: - lang: eng text: Two different mesoporous silica materials (SBA-15 and MCM 41) were impregnated with four different, commercially available surfactants, namely, E5, PEG 200, C10E6, and Triton X-100. Differential scanning calorimetry was employed to confirm the confinement of the surfactants in the pores of their host materials. Dynamic nuclear polarization enhanced solid state 13C magic angle spinning (MAS) nuclear magnetic resonance (NMR) spectra were recorded for these materials, showing that both the direct as well as the indirect polarization transfer pathways are active for the carbons of the polyethylene glycol moieties of the surfactants. The presence of the indirect polarization pathway implies the presence of molecular motion with correlation times faster than the inverse Larmor frequency of the observed signals. The intensities of the signals were determined, and an approach based on relative intensities was employed to ensure comparability throughout the samples. From these data, the interactions of the surfactants with the pore walls could be determined. Additionally, a model describing the surfactants’ arrangement in the pores was developed. It was concluded that all carbons of the hydrophilic surfactants, E5 and PEG 200, interact with the silica walls in a similar fashion, leading to similar polarization transfer pathway patterns for all observed signals. For the amphiphilic surfactants C10E6 and Triton X-100, the terminal hydroxyl group mediates the majority of the interactions with the pore walls and the polarizing agent. Two different mesoporous silica materials (SBA-15 and MCM 41) were impregnated with four different, commercially available surfactants, namely, E5, PEG 200, C10E6, and Triton X-100. Differential scanning calorimetry was employed to confirm the confinement of the surfactants in the pores of their host materials. Dynamic nuclear polarization enhanced solid state 13C magic angle spinning (MAS) nuclear magnetic resonance (NMR) spectra were recorded for these materials, showing that both the direct as well as the indirect polarization transfer pathways are active for the carbons of the polyethylene glycol moieties of the surfactants. The presence of the indirect polarization pathway implies the presence of molecular motion with correlation times faster than the inverse Larmor frequency of the observed signals. The intensities of the signals were determined, and an approach based on relative intensities was employed to ensure comparability throughout the samples. From these data, the interactions of the surfactants with the pore walls could be determined. Additionally, a model describing the surfactants’ arrangement in the pores was developed. It was concluded that all carbons of the hydrophilic surfactants, E5 and PEG 200, interact with the silica walls in a similar fashion, leading to similar polarization transfer pathway patterns for all observed signals. For the amphiphilic surfactants C10E6 and Triton X-100, the terminal hydroxyl group mediates the majority of the interactions with the pore walls and the polarizing agent. author: - first_name: Sonja C. full_name: Döller, Sonja C. last_name: Döller - first_name: Martin full_name: Brodrecht, Martin last_name: Brodrecht - first_name: Torsten full_name: Gutmann, Torsten id: '118165' last_name: Gutmann - first_name: Markus full_name: Hoffmann, Markus last_name: Hoffmann - first_name: Gerd full_name: Buntkowsky, Gerd last_name: Buntkowsky citation: ama: Döller SC, Brodrecht M, Gutmann T, Hoffmann M, Buntkowsky G. Direct and Indirect DNP NMR Uncovers the Interplay of Surfactants with Their Mesoporous Host Material. The Journal of Physical Chemistry C. 2023;127(25):12125–12134. doi:10.1021/acs.jpcc.3c01946 apa: Döller, S. C., Brodrecht, M., Gutmann, T., Hoffmann, M., & Buntkowsky, G. (2023). Direct and Indirect DNP NMR Uncovers the Interplay of Surfactants with Their Mesoporous Host Material. The Journal of Physical Chemistry C, 127(25), 12125–12134. https://doi.org/10.1021/acs.jpcc.3c01946 bibtex: '@article{Döller_Brodrecht_Gutmann_Hoffmann_Buntkowsky_2023, title={Direct and Indirect DNP NMR Uncovers the Interplay of Surfactants with Their Mesoporous Host Material}, volume={127}, DOI={10.1021/acs.jpcc.3c01946}, number={25}, journal={The Journal of Physical Chemistry C}, publisher={American Chemical Society}, author={Döller, Sonja C. and Brodrecht, Martin and Gutmann, Torsten and Hoffmann, Markus and Buntkowsky, Gerd}, year={2023}, pages={12125–12134} }' chicago: 'Döller, Sonja C., Martin Brodrecht, Torsten Gutmann, Markus Hoffmann, and Gerd Buntkowsky. “Direct and Indirect DNP NMR Uncovers the Interplay of Surfactants with Their Mesoporous Host Material.” The Journal of Physical Chemistry C 127, no. 25 (2023): 12125–12134. https://doi.org/10.1021/acs.jpcc.3c01946.' ieee: 'S. C. Döller, M. Brodrecht, T. Gutmann, M. Hoffmann, and G. Buntkowsky, “Direct and Indirect DNP NMR Uncovers the Interplay of Surfactants with Their Mesoporous Host Material,” The Journal of Physical Chemistry C, vol. 127, no. 25, pp. 12125–12134, 2023, doi: 10.1021/acs.jpcc.3c01946.' mla: Döller, Sonja C., et al. “Direct and Indirect DNP NMR Uncovers the Interplay of Surfactants with Their Mesoporous Host Material.” The Journal of Physical Chemistry C, vol. 127, no. 25, American Chemical Society, 2023, pp. 12125–12134, doi:10.1021/acs.jpcc.3c01946. short: S.C. Döller, M. Brodrecht, T. Gutmann, M. Hoffmann, G. Buntkowsky, The Journal of Physical Chemistry C 127 (2023) 12125–12134. date_created: 2026-02-07T09:12:13Z date_updated: 2026-02-17T16:18:30Z doi: 10.1021/acs.jpcc.3c01946 extern: '1' intvolume: ' 127' issue: '25' language: - iso: eng page: 12125–12134 publication: The Journal of Physical Chemistry C publication_identifier: issn: - 1932-7447 publisher: American Chemical Society status: public title: Direct and Indirect DNP NMR Uncovers the Interplay of Surfactants with Their Mesoporous Host Material type: journal_article user_id: '100715' volume: 127 year: '2023' ... --- _id: '31190' abstract: - lang: eng text: "For a compact Riemannian locally symmetric space $\\Gamma\\backslash G/K$ of\r\narbitrary rank we determine the location of certain Ruelle-Taylor resonances\r\nfor the Weyl chamber action. We provide a Weyl-lower bound on an appropriate\r\ncounting function for the Ruelle-Taylor resonances and establish a spectral gap\r\nwhich is uniform in $\\Gamma$ if $G/K$ is irreducible of higher rank. This is\r\nachieved by proving a quantum-classical correspondence, i.e. a\r\n1:1-correspondence between horocyclically invariant Ruelle-Taylor resonant\r\nstates and joint eigenfunctions of the algebra of invariant differential\r\noperators on $G/K$." author: - first_name: Joachim full_name: Hilgert, Joachim id: '220' last_name: Hilgert - first_name: Tobias full_name: Weich, Tobias id: '49178' last_name: Weich orcid: 0000-0002-9648-6919 - first_name: Lasse Lennart full_name: Wolf, Lasse Lennart id: '45027' last_name: Wolf orcid: 0000-0001-8893-2045 citation: ama: Hilgert J, Weich T, Wolf LL. Higher rank quantum-classical correspondence. Analysis & PDE. 2023;16(10):2241–2265. doi:https://doi.org/10.2140/apde.2023.16.2241 apa: Hilgert, J., Weich, T., & Wolf, L. L. (2023). Higher rank quantum-classical correspondence. Analysis & PDE, 16(10), 2241–2265. https://doi.org/10.2140/apde.2023.16.2241 bibtex: '@article{Hilgert_Weich_Wolf_2023, title={Higher rank quantum-classical correspondence}, volume={16}, DOI={https://doi.org/10.2140/apde.2023.16.2241}, number={10}, journal={Analysis & PDE}, publisher={MSP}, author={Hilgert, Joachim and Weich, Tobias and Wolf, Lasse Lennart}, year={2023}, pages={2241–2265} }' chicago: 'Hilgert, Joachim, Tobias Weich, and Lasse Lennart Wolf. “Higher Rank Quantum-Classical Correspondence.” Analysis & PDE 16, no. 10 (2023): 2241–2265. https://doi.org/10.2140/apde.2023.16.2241.' ieee: 'J. Hilgert, T. Weich, and L. L. Wolf, “Higher rank quantum-classical correspondence,” Analysis & PDE, vol. 16, no. 10, pp. 2241–2265, 2023, doi: https://doi.org/10.2140/apde.2023.16.2241.' mla: Hilgert, Joachim, et al. “Higher Rank Quantum-Classical Correspondence.” Analysis & PDE, vol. 16, no. 10, MSP, 2023, pp. 2241–2265, doi:https://doi.org/10.2140/apde.2023.16.2241. short: J. Hilgert, T. Weich, L.L. Wolf, Analysis & PDE 16 (2023) 2241–2265. date_created: 2022-05-11T10:41:35Z date_updated: 2026-02-18T10:39:36Z department: - _id: '10' - _id: '548' - _id: '91' doi: https://doi.org/10.2140/apde.2023.16.2241 external_id: arxiv: - '2103.05667' intvolume: ' 16' issue: '10' language: - iso: eng page: 2241–2265 publication: Analysis & PDE publisher: MSP status: public title: Higher rank quantum-classical correspondence type: journal_article user_id: '49178' volume: 16 year: '2023' ... --- _id: '31059' abstract: - lang: eng text: In this article we prove meromorphic continuation of weighted zeta functions in the framework of open hyperbolic systems by using the meromorphically continued restricted resolvent of Dyatlov and Guillarmou (2016). We obtain a residue formula proving equality between residues of weighted zetas and invariant Ruelle distributions. We combine this equality with results of Guillarmou, Hilgert and Weich (2021) in order to relate the residues to Patterson-Sullivan distributions. Finally we provide proof-of-principle results concerning the numerical calculation of invariant Ruelle distributions for 3-disc scattering systems. author: - first_name: Philipp full_name: Schütte, Philipp id: '50168' last_name: Schütte - first_name: Tobias full_name: Weich, Tobias id: '49178' last_name: Weich orcid: 0000-0002-9648-6919 - first_name: Sonja full_name: Barkhofen, Sonja id: '48188' last_name: Barkhofen citation: ama: Schütte P, Weich T, Barkhofen S. Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems. Communications in Mathematical Physics. 2023;398:655-678. doi:https://doi.org/10.1007/s00220-022-04538-z apa: Schütte, P., Weich, T., & Barkhofen, S. (2023). Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems. Communications in Mathematical Physics, 398, 655–678. https://doi.org/10.1007/s00220-022-04538-z bibtex: '@article{Schütte_Weich_Barkhofen_2023, title={Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems}, volume={398}, DOI={https://doi.org/10.1007/s00220-022-04538-z}, journal={Communications in Mathematical Physics}, author={Schütte, Philipp and Weich, Tobias and Barkhofen, Sonja}, year={2023}, pages={655–678} }' chicago: 'Schütte, Philipp, Tobias Weich, and Sonja Barkhofen. “Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems.” Communications in Mathematical Physics 398 (2023): 655–78. https://doi.org/10.1007/s00220-022-04538-z.' ieee: 'P. Schütte, T. Weich, and S. Barkhofen, “Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems,” Communications in Mathematical Physics, vol. 398, pp. 655–678, 2023, doi: https://doi.org/10.1007/s00220-022-04538-z.' mla: Schütte, Philipp, et al. “Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems.” Communications in Mathematical Physics, vol. 398, 2023, pp. 655–78, doi:https://doi.org/10.1007/s00220-022-04538-z. short: P. Schütte, T. Weich, S. Barkhofen, Communications in Mathematical Physics 398 (2023) 655–678. date_created: 2022-05-04T12:27:46Z date_updated: 2026-02-18T10:41:07Z department: - _id: '10' - _id: '548' - _id: '623' - _id: '15' doi: https://doi.org/10.1007/s00220-022-04538-z external_id: arxiv: - '2112.05791' intvolume: ' 398' language: - iso: eng page: 655-678 publication: Communications in Mathematical Physics status: public title: Meromorphic Continuation of Weighted Zeta Functions on Open Hyperbolic Systems type: journal_article user_id: '49178' volume: 398 year: '2023' ... --- _id: '53353' author: - first_name: Clara full_name: Biagi, Clara last_name: Biagi - first_name: Louis full_name: Rethfeld, Louis last_name: Rethfeld - first_name: Arjan full_name: Kuijper, Arjan last_name: Kuijper - first_name: Philipp full_name: Terhörst, Philipp id: '97123' last_name: Terhörst citation: ama: 'Biagi C, Rethfeld L, Kuijper A, Terhörst P. Explaining Face Recognition Through SHAP-Based Pixel-Level Face Image Quality Assessment. In: 2023 IEEE International Joint Conference on Biometrics (IJCB). IEEE; 2023. doi:10.1109/ijcb57857.2023.10448905' apa: Biagi, C., Rethfeld, L., Kuijper, A., & Terhörst, P. (2023). Explaining Face Recognition Through SHAP-Based Pixel-Level Face Image Quality Assessment. 2023 IEEE International Joint Conference on Biometrics (IJCB). https://doi.org/10.1109/ijcb57857.2023.10448905 bibtex: '@inproceedings{Biagi_Rethfeld_Kuijper_Terhörst_2023, title={Explaining Face Recognition Through SHAP-Based Pixel-Level Face Image Quality Assessment}, DOI={10.1109/ijcb57857.2023.10448905}, booktitle={2023 IEEE International Joint Conference on Biometrics (IJCB)}, publisher={IEEE}, author={Biagi, Clara and Rethfeld, Louis and Kuijper, Arjan and Terhörst, Philipp}, year={2023} }' chicago: Biagi, Clara, Louis Rethfeld, Arjan Kuijper, and Philipp Terhörst. “Explaining Face Recognition Through SHAP-Based Pixel-Level Face Image Quality Assessment.” In 2023 IEEE International Joint Conference on Biometrics (IJCB). IEEE, 2023. https://doi.org/10.1109/ijcb57857.2023.10448905. ieee: 'C. Biagi, L. Rethfeld, A. Kuijper, and P. Terhörst, “Explaining Face Recognition Through SHAP-Based Pixel-Level Face Image Quality Assessment,” 2023, doi: 10.1109/ijcb57857.2023.10448905.' mla: Biagi, Clara, et al. “Explaining Face Recognition Through SHAP-Based Pixel-Level Face Image Quality Assessment.” 2023 IEEE International Joint Conference on Biometrics (IJCB), IEEE, 2023, doi:10.1109/ijcb57857.2023.10448905. short: 'C. Biagi, L. Rethfeld, A. Kuijper, P. Terhörst, in: 2023 IEEE International Joint Conference on Biometrics (IJCB), IEEE, 2023.' date_created: 2024-04-08T09:29:19Z date_updated: 2026-02-18T09:49:09Z doi: 10.1109/ijcb57857.2023.10448905 language: - iso: eng publication: 2023 IEEE International Joint Conference on Biometrics (IJCB) publication_status: published publisher: IEEE status: public title: Explaining Face Recognition Through SHAP-Based Pixel-Level Face Image Quality Assessment type: conference user_id: '97123' year: '2023' ... --- _id: '64194' article_number: '200320' author: - first_name: Javad full_name: Khodadoust, Javad last_name: Khodadoust - first_name: Raúl full_name: Monroy, Raúl last_name: Monroy - first_name: Miguel Angel full_name: Medina-Pérez, Miguel Angel last_name: Medina-Pérez - first_name: Octavio full_name: Loyola-González, Octavio last_name: Loyola-González - first_name: Worapan full_name: Kusakunniran, Worapan last_name: Kusakunniran - first_name: André full_name: Boller, André last_name: Boller - first_name: Philipp full_name: Terhörst, Philipp id: '97123' last_name: Terhörst citation: ama: Khodadoust J, Monroy R, Medina-Pérez MA, et al. A novel indexing algorithm for latent palmprints leveraging minutiae and orientation field. Intelligent Systems with Applications. 2023;21. doi:10.1016/j.iswa.2023.200320 apa: Khodadoust, J., Monroy, R., Medina-Pérez, M. A., Loyola-González, O., Kusakunniran, W., Boller, A., & Terhörst, P. (2023). A novel indexing algorithm for latent palmprints leveraging minutiae and orientation field. Intelligent Systems with Applications, 21, Article 200320. https://doi.org/10.1016/j.iswa.2023.200320 bibtex: '@article{Khodadoust_Monroy_Medina-Pérez_Loyola-González_Kusakunniran_Boller_Terhörst_2023, title={A novel indexing algorithm for latent palmprints leveraging minutiae and orientation field}, volume={21}, DOI={10.1016/j.iswa.2023.200320}, number={200320}, journal={Intelligent Systems with Applications}, publisher={Elsevier BV}, author={Khodadoust, Javad and Monroy, Raúl and Medina-Pérez, Miguel Angel and Loyola-González, Octavio and Kusakunniran, Worapan and Boller, André and Terhörst, Philipp}, year={2023} }' chicago: Khodadoust, Javad, Raúl Monroy, Miguel Angel Medina-Pérez, Octavio Loyola-González, Worapan Kusakunniran, André Boller, and Philipp Terhörst. “A Novel Indexing Algorithm for Latent Palmprints Leveraging Minutiae and Orientation Field.” Intelligent Systems with Applications 21 (2023). https://doi.org/10.1016/j.iswa.2023.200320. ieee: 'J. Khodadoust et al., “A novel indexing algorithm for latent palmprints leveraging minutiae and orientation field,” Intelligent Systems with Applications, vol. 21, Art. no. 200320, 2023, doi: 10.1016/j.iswa.2023.200320.' mla: Khodadoust, Javad, et al. “A Novel Indexing Algorithm for Latent Palmprints Leveraging Minutiae and Orientation Field.” Intelligent Systems with Applications, vol. 21, 200320, Elsevier BV, 2023, doi:10.1016/j.iswa.2023.200320. short: J. Khodadoust, R. Monroy, M.A. Medina-Pérez, O. Loyola-González, W. Kusakunniran, A. Boller, P. Terhörst, Intelligent Systems with Applications 21 (2023). date_created: 2026-02-18T09:33:15Z date_updated: 2026-02-19T07:50:54Z doi: 10.1016/j.iswa.2023.200320 intvolume: ' 21' language: - iso: eng publication: Intelligent Systems with Applications publication_identifier: issn: - 2667-3053 publication_status: published publisher: Elsevier BV status: public title: A novel indexing algorithm for latent palmprints leveraging minutiae and orientation field type: journal_article user_id: '97123' volume: 21 year: '2023' ... --- _id: '63922' author: - first_name: Nargiz B. full_name: Asanbaeva, Nargiz B. last_name: Asanbaeva - first_name: Sergey A. full_name: Dobrynin, Sergey A. last_name: Dobrynin - first_name: Denis A. full_name: Morozov, Denis A. last_name: Morozov - first_name: Nadia full_name: Haro-Mares, Nadia last_name: Haro-Mares - first_name: Torsten full_name: Gutmann, Torsten id: '118165' last_name: Gutmann - first_name: Gerd full_name: Buntkowsky, Gerd last_name: Buntkowsky - first_name: Elena G. full_name: Bagryanskaya, Elena G. last_name: Bagryanskaya citation: ama: Asanbaeva NB, Dobrynin SA, Morozov DA, et al. An EPR Study on Highly Stable Nitroxyl-Nitroxyl Biradicals for Dynamic Nuclear Polarization Applications at High Magnetic Fields. Molecules. 2023;28(4):1926. doi:10.3390/molecules28041926 apa: Asanbaeva, N. B., Dobrynin, S. A., Morozov, D. A., Haro-Mares, N., Gutmann, T., Buntkowsky, G., & Bagryanskaya, E. G. (2023). An EPR Study on Highly Stable Nitroxyl-Nitroxyl Biradicals for Dynamic Nuclear Polarization Applications at High Magnetic Fields. Molecules, 28(4), 1926. https://doi.org/10.3390/molecules28041926 bibtex: '@article{Asanbaeva_Dobrynin_Morozov_Haro-Mares_Gutmann_Buntkowsky_Bagryanskaya_2023, title={An EPR Study on Highly Stable Nitroxyl-Nitroxyl Biradicals for Dynamic Nuclear Polarization Applications at High Magnetic Fields}, volume={28}, DOI={10.3390/molecules28041926}, number={4}, journal={Molecules}, author={Asanbaeva, Nargiz B. and Dobrynin, Sergey A. and Morozov, Denis A. and Haro-Mares, Nadia and Gutmann, Torsten and Buntkowsky, Gerd and Bagryanskaya, Elena G.}, year={2023}, pages={1926} }' chicago: 'Asanbaeva, Nargiz B., Sergey A. Dobrynin, Denis A. Morozov, Nadia Haro-Mares, Torsten Gutmann, Gerd Buntkowsky, and Elena G. Bagryanskaya. “An EPR Study on Highly Stable Nitroxyl-Nitroxyl Biradicals for Dynamic Nuclear Polarization Applications at High Magnetic Fields.” Molecules 28, no. 4 (2023): 1926. https://doi.org/10.3390/molecules28041926.' ieee: 'N. B. Asanbaeva et al., “An EPR Study on Highly Stable Nitroxyl-Nitroxyl Biradicals for Dynamic Nuclear Polarization Applications at High Magnetic Fields,” Molecules, vol. 28, no. 4, p. 1926, 2023, doi: 10.3390/molecules28041926.' mla: Asanbaeva, Nargiz B., et al. “An EPR Study on Highly Stable Nitroxyl-Nitroxyl Biradicals for Dynamic Nuclear Polarization Applications at High Magnetic Fields.” Molecules, vol. 28, no. 4, 2023, p. 1926, doi:10.3390/molecules28041926. short: N.B. Asanbaeva, S.A. Dobrynin, D.A. Morozov, N. Haro-Mares, T. Gutmann, G. Buntkowsky, E.G. Bagryanskaya, Molecules 28 (2023) 1926. date_created: 2026-02-07T08:57:19Z date_updated: 2026-02-20T08:12:12Z doi: 10.3390/molecules28041926 extern: '1' intvolume: ' 28' issue: '4' language: - iso: eng page: '1926' publication: Molecules publication_identifier: issn: - 1420-3049 status: public title: An EPR Study on Highly Stable Nitroxyl-Nitroxyl Biradicals for Dynamic Nuclear Polarization Applications at High Magnetic Fields type: journal_article user_id: '100715' volume: 28 year: '2023' ... --- _id: '52679' abstract: - lang: eng text: Progressive digitization throughout the entire product data life cycle requires a more sensitive handling and understanding of data within engineering processes. Regarding engineering research data, the aim is to implement the FAIR data principles (Findable, Accessible, Interoperable, Reusable) to guarantee the post-usability of research data. To ensure the quality of data throughout the entire research process a methodical approach had been developed. Based on the quality categories Intrinsic, Representative, Contextual and Available, the related quality dimensions are considered differentiated along the research data life cycle and presented in a concept. As a use case, this concept is carried out on a tensile test with documentation of results in a research data management system. author: - first_name: Laura full_name: Müller, Laura id: '44605' last_name: Müller - first_name: Max Leo full_name: Wawer, Max Leo last_name: Wawer - first_name: Norman full_name: Heimes, Norman last_name: Heimes - first_name: Johanna full_name: Uhe, Johanna last_name: Uhe - first_name: Oliver full_name: Koepler, Oliver last_name: Koepler - first_name: Sören full_name: Auer, Sören last_name: Auer - first_name: Roland full_name: Lachmayer, Roland last_name: Lachmayer - first_name: Iryna full_name: Mozgova, Iryna id: '95903' last_name: Mozgova citation: ama: 'Müller L, Wawer ML, Heimes N, et al. Datenqualitätssicherung im Forschungsprozess am Beispiel von Zugversuchen. In: DS 125: Proceedings of the 34th Symposium Design for X (DFX2023). Erlangen : Ehemaligennetzwerk des Lehrstuhls für Konstruktionstechnik (KTmfk) Erlangen e.V.; 2023:143-152. doi: https://doi.org/10.35199/dfx2023.15' apa: 'Müller, L., Wawer, M. L., Heimes, N., Uhe, J., Koepler, O., Auer, S., Lachmayer, R., & Mozgova, I. (2023). Datenqualitätssicherung im Forschungsprozess am Beispiel von Zugversuchen. DS 125: Proceedings of the 34th Symposium Design for X (DFX2023), 143–152. https://doi.org/ https://doi.org/10.35199/dfx2023.15' bibtex: '@inproceedings{Müller_Wawer_Heimes_Uhe_Koepler_Auer_Lachmayer_Mozgova_2023, title={Datenqualitätssicherung im Forschungsprozess am Beispiel von Zugversuchen}, DOI={ https://doi.org/10.35199/dfx2023.15}, booktitle={DS 125: Proceedings of the 34th Symposium Design for X (DFX2023)}, publisher={Erlangen : Ehemaligennetzwerk des Lehrstuhls für Konstruktionstechnik (KTmfk) Erlangen e.V.}, author={Müller, Laura and Wawer, Max Leo and Heimes, Norman and Uhe, Johanna and Koepler, Oliver and Auer, Sören and Lachmayer, Roland and Mozgova, Iryna}, year={2023}, pages={143–152} }' chicago: 'Müller, Laura, Max Leo Wawer, Norman Heimes, Johanna Uhe, Oliver Koepler, Sören Auer, Roland Lachmayer, and Iryna Mozgova. “Datenqualitätssicherung Im Forschungsprozess Am Beispiel von Zugversuchen.” In DS 125: Proceedings of the 34th Symposium Design for X (DFX2023), 143–52. Erlangen : Ehemaligennetzwerk des Lehrstuhls für Konstruktionstechnik (KTmfk) Erlangen e.V., 2023. https://doi.org/ https://doi.org/10.35199/dfx2023.15.' ieee: 'L. Müller et al., “Datenqualitätssicherung im Forschungsprozess am Beispiel von Zugversuchen,” in DS 125: Proceedings of the 34th Symposium Design for X (DFX2023), 2023, pp. 143–152, doi: https://doi.org/10.35199/dfx2023.15.' mla: 'Müller, Laura, et al. “Datenqualitätssicherung Im Forschungsprozess Am Beispiel von Zugversuchen.” DS 125: Proceedings of the 34th Symposium Design for X (DFX2023), Erlangen : Ehemaligennetzwerk des Lehrstuhls für Konstruktionstechnik (KTmfk) Erlangen e.V., 2023, pp. 143–52, doi: https://doi.org/10.35199/dfx2023.15.' short: 'L. Müller, M.L. Wawer, N. Heimes, J. Uhe, O. Koepler, S. Auer, R. Lachmayer, I. Mozgova, in: DS 125: Proceedings of the 34th Symposium Design for X (DFX2023), Erlangen : Ehemaligennetzwerk des Lehrstuhls für Konstruktionstechnik (KTmfk) Erlangen e.V., 2023, pp. 143–152.' date_created: 2024-03-20T11:21:43Z date_updated: 2026-02-20T13:00:21Z department: - _id: '741' doi: ' https://doi.org/10.35199/dfx2023.15' language: - iso: eng page: 143-152 publication: 'DS 125: Proceedings of the 34th Symposium Design for X (DFX2023)' publisher: 'Erlangen : Ehemaligennetzwerk des Lehrstuhls für Konstruktionstechnik (KTmfk) Erlangen e.V.' quality_controlled: '1' status: public title: Datenqualitätssicherung im Forschungsprozess am Beispiel von Zugversuchen type: conference user_id: '44605' year: '2023' ...