--- _id: '36800' abstract: - lang: eng text: "Abstract. The miniaturisation of components leads to new demands on measurement systems. One of these is the resolution. As a volumetric analysis method and method of non-destructive testing, industrial X-ray computed\r\ntomography (XCT) has the ability to measure geometrical features and their corresponding dimensions without destroying them and can therefore be used for quality assurance. However, the concept of resolution is not trivial for XCT and has not yet been finally clarified. In particular, the interface structural resolution, the detectability of two surfaces facing each other after surface segmentation, faces a lack of a test specimen, a corresponding\r\nmeasurand and a reliable method. Simulation-based XCT investigations of a method to determine this type of resolution are presented in this article using the geometry of a test specimen that contains several radially\r\narranged holes of the same size. The borehole diameters correspond to the distance between the holes to investigate the resolvability of surfaces and interfaces. The evaluation is based on mean and extreme values of grey value\r\nprofiles between the individual boreholes of the reconstructed volume. It is shown that the geometrical detectability of the test specimen surface and interface can be extended by a reasonable choice of the threshold value for\r\nsurface segmentation within a defined interval. With regard to the resolving capability, a distinction is made between assured detectability and possible detectability, as well as the threshold value used when using the ISO50\r\nthreshold for surface segmentation and measurement chain completion. " author: - first_name: Matthias full_name: Busch, Matthias last_name: Busch - first_name: Tino full_name: Hausotte, Tino last_name: Hausotte citation: ama: Busch M, Hausotte T. Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners. Journal of Sensors and Sensor Systems. 2023;12(1):1-8. doi:10.5194/jsss-12-1-2023 apa: Busch, M., & Hausotte, T. (2023). Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners. Journal of Sensors and Sensor Systems, 12(1), 1–8. https://doi.org/10.5194/jsss-12-1-2023 bibtex: '@article{Busch_Hausotte_2023, title={Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners}, volume={12}, DOI={10.5194/jsss-12-1-2023}, number={1}, journal={Journal of Sensors and Sensor Systems}, publisher={Copernicus GmbH}, author={Busch, Matthias and Hausotte, Tino}, year={2023}, pages={1–8} }' chicago: 'Busch, Matthias, and Tino Hausotte. “Simulation-Based Investigation of the Metrological Interface Structural Resolution Capability of X-Ray Computed Tomography Scanners.” Journal of Sensors and Sensor Systems 12, no. 1 (2023): 1–8. https://doi.org/10.5194/jsss-12-1-2023.' ieee: 'M. Busch and T. Hausotte, “Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners,” Journal of Sensors and Sensor Systems, vol. 12, no. 1, pp. 1–8, 2023, doi: 10.5194/jsss-12-1-2023.' mla: Busch, Matthias, and Tino Hausotte. “Simulation-Based Investigation of the Metrological Interface Structural Resolution Capability of X-Ray Computed Tomography Scanners.” Journal of Sensors and Sensor Systems, vol. 12, no. 1, Copernicus GmbH, 2023, pp. 1–8, doi:10.5194/jsss-12-1-2023. short: M. Busch, T. Hausotte, Journal of Sensors and Sensor Systems 12 (2023) 1–8. date_created: 2023-01-13T14:37:34Z date_updated: 2023-01-13T14:40:12Z department: - _id: '630' doi: 10.5194/jsss-12-1-2023 intvolume: ' 12' issue: '1' keyword: - Electrical and Electronic Engineering - Instrumentation language: - iso: eng main_file_link: - open_access: '1' url: https://jsss.copernicus.org/articles/12/1/2023/ oa: '1' page: 1-8 project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '149' name: 'TRR 285 – C05: TRR 285 - Subproject C05' publication: Journal of Sensors and Sensor Systems publication_identifier: issn: - 2194-878X publication_status: published publisher: Copernicus GmbH status: public title: Simulation-based investigation of the metrological interface structural resolution capability of X-ray computed tomography scanners type: journal_article user_id: '7850' volume: 12 year: '2023' ... --- _id: '43457' abstract: - lang: eng text: The production of hydrogen and the utilization of biomass for sustainable concepts of energy conversion and storage require gas sensors that discriminate between hydrogen (H2) and carbon monoxide (CO). Mesoporous copper–ceria (Cu–CeO2) materials with large specific surface areas and uniform porosity are prepared by nanocasting, and their textural properties are characterized by N2 physisorption, powder XRD, scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectroscopy. The oxidation states of copper (Cu+, Cu2+) and cerium (Ce3+, Ce4+) are investigated by XPS. The materials are used as resistive gas sensors for H2 and CO. The sensors show a stronger response to CO than to H2 and low cross-sensitivity to humidity. Copper turns out to be a necessary component; copper-free ceria materials prepared by the same method show only poor sensing performance. By measuring both gases (CO and H2) simultaneously, it is shown that this behavior can be utilized for selective sensing of CO in the presence of H2. author: - first_name: Dominik full_name: Baier, Dominik last_name: Baier - first_name: Tatiana full_name: Priamushko, Tatiana last_name: Priamushko - first_name: Christian full_name: Weinberger, Christian id: '11848' last_name: Weinberger - first_name: Freddy full_name: Kleitz, Freddy last_name: Kleitz - first_name: Michael full_name: Tiemann, Michael id: '23547' last_name: Tiemann orcid: 0000-0003-1711-2722 citation: ama: Baier D, Priamushko T, Weinberger C, Kleitz F, Tiemann M. Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors. ACS Sensors. 2023;8(4):1616-1623. doi:10.1021/acssensors.2c02739 apa: Baier, D., Priamushko, T., Weinberger, C., Kleitz, F., & Tiemann, M. (2023). Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors. ACS Sensors, 8(4), 1616–1623. https://doi.org/10.1021/acssensors.2c02739 bibtex: '@article{Baier_Priamushko_Weinberger_Kleitz_Tiemann_2023, title={Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors}, volume={8}, DOI={10.1021/acssensors.2c02739}, number={4}, journal={ACS Sensors}, publisher={American Chemical Society (ACS)}, author={Baier, Dominik and Priamushko, Tatiana and Weinberger, Christian and Kleitz, Freddy and Tiemann, Michael}, year={2023}, pages={1616–1623} }' chicago: 'Baier, Dominik, Tatiana Priamushko, Christian Weinberger, Freddy Kleitz, and Michael Tiemann. “Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors.” ACS Sensors 8, no. 4 (2023): 1616–23. https://doi.org/10.1021/acssensors.2c02739.' ieee: 'D. Baier, T. Priamushko, C. Weinberger, F. Kleitz, and M. Tiemann, “Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors,” ACS Sensors, vol. 8, no. 4, pp. 1616–1623, 2023, doi: 10.1021/acssensors.2c02739.' mla: Baier, Dominik, et al. “Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors.” ACS Sensors, vol. 8, no. 4, American Chemical Society (ACS), 2023, pp. 1616–23, doi:10.1021/acssensors.2c02739. short: D. Baier, T. Priamushko, C. Weinberger, F. Kleitz, M. Tiemann, ACS Sensors 8 (2023) 1616–1623. date_created: 2023-04-12T06:52:34Z date_updated: 2023-05-01T05:47:53Z department: - _id: '35' - _id: '2' - _id: '307' doi: 10.1021/acssensors.2c02739 intvolume: ' 8' issue: '4' keyword: - Fluid Flow and Transfer Processes - Process Chemistry and Technology - Instrumentation - Bioengineering language: - iso: eng page: 1616 - 1623 publication: ACS Sensors publication_identifier: issn: - 2379-3694 - 2379-3694 publication_status: published publisher: American Chemical Society (ACS) quality_controlled: '1' status: public title: Selective Discrimination between CO and H2 with Copper–Ceria-Resistive Gas Sensors type: journal_article user_id: '23547' volume: 8 year: '2023' ... --- _id: '45134' abstract: - lang: eng text: 'The aim of the present study was to investigate if the presence of anterior cruciate ligament (ACL) injury risk factors depicted in the laboratory would reflect at-risk patterns in football-specific field data. Twenty-four female footballers (14.9 ± 0.9 year) performed unanticipated cutting maneuvers in a laboratory setting and on the football pitch during football-specific exercises (F-EX) and games (F-GAME). Knee joint moments were collected in the laboratory and grouped using hierarchical agglomerative clustering. The clusters were used to investigate the kinematics collected on field through wearable sensors. Three clusters emerged: Cluster 1 presented the lowest knee moments; Cluster 2 presented high knee extension but low knee abduction and rotation moments; Cluster 3 presented the highest knee abduction, extension, and external rotation moments. In F-EX, greater knee abduction angles were found in Cluster 2 and 3 compared to Cluster 1 (p = 0.007). Cluster 2 showed the lowest knee and hip flexion angles (p < 0.013). Cluster 3 showed the greatest hip external rotation angles (p = 0.006). In F-GAME, Cluster 3 presented the greatest knee external rotation and lowest knee flexion angles (p = 0.003). Clinically relevant differences towards ACL injury identified in the laboratory reflected at-risk patterns only in part when cutting on the field: in the field, low-risk players exhibited similar kinematic patterns as the high-risk players. Therefore, in-lab injury risk screening may lack ecological validity.' article_number: '2176' author: - first_name: Stefano full_name: Di Paolo, Stefano last_name: Di Paolo - first_name: Eline M. full_name: Nijmeijer, Eline M. last_name: Nijmeijer - first_name: Laura full_name: Bragonzoni, Laura last_name: Bragonzoni - first_name: Alli full_name: Gokeler, Alli last_name: Gokeler - first_name: Anne full_name: Benjaminse, Anne last_name: Benjaminse citation: ama: 'Di Paolo S, Nijmeijer EM, Bragonzoni L, Gokeler A, Benjaminse A. Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach. Sensors. 2023;23(4). doi:10.3390/s23042176' apa: 'Di Paolo, S., Nijmeijer, E. M., Bragonzoni, L., Gokeler, A., & Benjaminse, A. (2023). Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach. Sensors, 23(4), Article 2176. https://doi.org/10.3390/s23042176' bibtex: '@article{Di Paolo_Nijmeijer_Bragonzoni_Gokeler_Benjaminse_2023, title={Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach}, volume={23}, DOI={10.3390/s23042176}, number={42176}, journal={Sensors}, publisher={MDPI AG}, author={Di Paolo, Stefano and Nijmeijer, Eline M. and Bragonzoni, Laura and Gokeler, Alli and Benjaminse, Anne}, year={2023} }' chicago: 'Di Paolo, Stefano, Eline M. Nijmeijer, Laura Bragonzoni, Alli Gokeler, and Anne Benjaminse. “Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach.” Sensors 23, no. 4 (2023). https://doi.org/10.3390/s23042176.' ieee: 'S. Di Paolo, E. M. Nijmeijer, L. Bragonzoni, A. Gokeler, and A. Benjaminse, “Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach,” Sensors, vol. 23, no. 4, Art. no. 2176, 2023, doi: 10.3390/s23042176.' mla: 'Di Paolo, Stefano, et al. “Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach.” Sensors, vol. 23, no. 4, 2176, MDPI AG, 2023, doi:10.3390/s23042176.' short: S. Di Paolo, E.M. Nijmeijer, L. Bragonzoni, A. Gokeler, A. Benjaminse, Sensors 23 (2023). date_created: 2023-05-19T09:09:49Z date_updated: 2023-05-19T09:13:42Z department: - _id: '17' doi: 10.3390/s23042176 intvolume: ' 23' issue: '4' keyword: - Electrical and Electronic Engineering - Biochemistry - Instrumentation - Atomic and Molecular Physics - and Optics - Analytical Chemistry language: - iso: eng publication: Sensors publication_identifier: issn: - 1424-8220 publication_status: published publisher: MDPI AG status: public title: 'Definition of High-Risk Motion Patterns for Female ACL Injury Based on Football-Specific Field Data: A Wearable Sensors Plus Data Mining Approach' type: journal_article user_id: '46' volume: 23 year: '2023' ... --- _id: '45859' abstract: - lang: eng text: Sport-related concussions (SRC) are characterized by impaired autonomic control. Heart rate variability (HRV) offers easily obtainable diagnostic approaches to SRC-associated dysautonomia, but studies investigating HRV during sleep, a crucial time for post-traumatic cerebral regeneration, are relatively sparse. The aim of this study was to assess nocturnal HRV in athletes during their return to sports (RTS) after SRC in their home environment using wireless wrist sensors (E4, Empatica, Milan, Italy) and to explore possible relations with clinical concussion-associated sleep symptoms. Eighteen SRC athletes wore a wrist sensor obtaining photoplethysmographic data at night during RTS as well as one night after full clinical recovery post RTS (>3 weeks). Nocturnal heart rate and parasympathetic activity of HRV (RMSSD) were calculated and compared using the Mann–Whitney U Test to values of eighteen; matched by sex, age, sport, and expertise, control athletes underwent the identical protocol. During RTS, nocturnal RMSSD of SRC athletes (Mdn = 77.74 ms) showed a trend compared to controls (Mdn = 95.68 ms, p = 0.021, r = −0.382, p adjusted using false discovery rate = 0.126) and positively correlated to “drowsiness” (r = 0.523, p = 0.023, p adjusted = 0.046). Post RTS, no differences in RMSSD between groups were detected. The presented findings in nocturnal cardiac parasympathetic activity during nights of RTS in SRC athletes might be a result of concussion, although its relation to recovery still needs to be elucidated. Utilization of wireless sensors and wearable technologies in home-based settings offer a possibility to obtain helpful objective data in the management of SRC. article_number: '4190' author: - first_name: Anne Carina full_name: Delling, Anne Carina last_name: Delling - first_name: Rasmus full_name: Jakobsmeyer, Rasmus last_name: Jakobsmeyer - first_name: Jessica full_name: Coenen, Jessica last_name: Coenen - first_name: Nele full_name: Christiansen, Nele last_name: Christiansen - first_name: Claus full_name: Reinsberger, Claus last_name: Reinsberger citation: ama: Delling AC, Jakobsmeyer R, Coenen J, Christiansen N, Reinsberger C. Home-Based Measurements of Nocturnal Cardiac Parasympathetic Activity in Athletes during Return to Sport after Sport-Related Concussion. Sensors. 2023;23(9). doi:10.3390/s23094190 apa: Delling, A. C., Jakobsmeyer, R., Coenen, J., Christiansen, N., & Reinsberger, C. (2023). Home-Based Measurements of Nocturnal Cardiac Parasympathetic Activity in Athletes during Return to Sport after Sport-Related Concussion. Sensors, 23(9), Article 4190. https://doi.org/10.3390/s23094190 bibtex: '@article{Delling_Jakobsmeyer_Coenen_Christiansen_Reinsberger_2023, title={Home-Based Measurements of Nocturnal Cardiac Parasympathetic Activity in Athletes during Return to Sport after Sport-Related Concussion}, volume={23}, DOI={10.3390/s23094190}, number={94190}, journal={Sensors}, publisher={MDPI AG}, author={Delling, Anne Carina and Jakobsmeyer, Rasmus and Coenen, Jessica and Christiansen, Nele and Reinsberger, Claus}, year={2023} }' chicago: Delling, Anne Carina, Rasmus Jakobsmeyer, Jessica Coenen, Nele Christiansen, and Claus Reinsberger. “Home-Based Measurements of Nocturnal Cardiac Parasympathetic Activity in Athletes during Return to Sport after Sport-Related Concussion.” Sensors 23, no. 9 (2023). https://doi.org/10.3390/s23094190. ieee: 'A. C. Delling, R. Jakobsmeyer, J. Coenen, N. Christiansen, and C. Reinsberger, “Home-Based Measurements of Nocturnal Cardiac Parasympathetic Activity in Athletes during Return to Sport after Sport-Related Concussion,” Sensors, vol. 23, no. 9, Art. no. 4190, 2023, doi: 10.3390/s23094190.' mla: Delling, Anne Carina, et al. “Home-Based Measurements of Nocturnal Cardiac Parasympathetic Activity in Athletes during Return to Sport after Sport-Related Concussion.” Sensors, vol. 23, no. 9, 4190, MDPI AG, 2023, doi:10.3390/s23094190. short: A.C. Delling, R. Jakobsmeyer, J. Coenen, N. Christiansen, C. Reinsberger, Sensors 23 (2023). date_created: 2023-07-04T11:30:24Z date_updated: 2023-07-25T09:23:53Z doi: 10.3390/s23094190 intvolume: ' 23' issue: '9' keyword: - Electrical and Electronic Engineering - Biochemistry - Instrumentation - Atomic and Molecular Physics - and Optics - Analytical Chemistry language: - iso: eng publication: Sensors publication_identifier: issn: - 1424-8220 publication_status: published publisher: MDPI AG status: public title: Home-Based Measurements of Nocturnal Cardiac Parasympathetic Activity in Athletes during Return to Sport after Sport-Related Concussion type: journal_article user_id: '9583' volume: 23 year: '2023' ... --- _id: '48053' alternative_title: - Signed tomographic reconstruction of ultrasonic fields using schlieren imaging author: - first_name: Tim full_name: Hetkämper, Tim id: '38123' last_name: Hetkämper - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning citation: ama: Hetkämper T, Claes L, Henning B. Vorzeichenrichtige tomographische Rekonstruktion von Ultraschallfeldern mit Hilfe der Schlierentechnik. tm - Technisches Messen. 2023;90(s1):49-54. doi:10.1515/teme-2023-0069 apa: Hetkämper, T., Claes, L., & Henning, B. (2023). Vorzeichenrichtige tomographische Rekonstruktion von Ultraschallfeldern mit Hilfe der Schlierentechnik. Tm - Technisches Messen, 90(s1), 49–54. https://doi.org/10.1515/teme-2023-0069 bibtex: '@article{Hetkämper_Claes_Henning_2023, title={Vorzeichenrichtige tomographische Rekonstruktion von Ultraschallfeldern mit Hilfe der Schlierentechnik}, volume={90}, DOI={10.1515/teme-2023-0069}, number={s1}, journal={tm - Technisches Messen}, publisher={Walter de Gruyter GmbH}, author={Hetkämper, Tim and Claes, Leander and Henning, Bernd}, year={2023}, pages={49–54} }' chicago: 'Hetkämper, Tim, Leander Claes, and Bernd Henning. “Vorzeichenrichtige Tomographische Rekonstruktion von Ultraschallfeldern Mit Hilfe Der Schlierentechnik.” Tm - Technisches Messen 90, no. s1 (2023): 49–54. https://doi.org/10.1515/teme-2023-0069.' ieee: 'T. Hetkämper, L. Claes, and B. Henning, “Vorzeichenrichtige tomographische Rekonstruktion von Ultraschallfeldern mit Hilfe der Schlierentechnik,” tm - Technisches Messen, vol. 90, no. s1, pp. 49–54, 2023, doi: 10.1515/teme-2023-0069.' mla: Hetkämper, Tim, et al. “Vorzeichenrichtige Tomographische Rekonstruktion von Ultraschallfeldern Mit Hilfe Der Schlierentechnik.” Tm - Technisches Messen, vol. 90, no. s1, Walter de Gruyter GmbH, 2023, pp. 49–54, doi:10.1515/teme-2023-0069. short: T. Hetkämper, L. Claes, B. Henning, Tm - Technisches Messen 90 (2023) 49–54. date_created: 2023-10-13T11:02:52Z date_updated: 2023-10-13T11:04:00Z department: - _id: '49' doi: 10.1515/teme-2023-0069 intvolume: ' 90' issue: s1 keyword: - Electrical and Electronic Engineering - Instrumentation language: - iso: eng page: 49-54 publication: tm - Technisches Messen publication_identifier: issn: - 2196-7113 - 0171-8096 publication_status: published publisher: Walter de Gruyter GmbH status: public title: Vorzeichenrichtige tomographische Rekonstruktion von Ultraschallfeldern mit Hilfe der Schlierentechnik type: journal_article user_id: '38123' volume: 90 year: '2023' ... --- _id: '34223' abstract: - lang: eng text: In this study, quasi-unidirectional continuous fiber reinforced thermoplastics (CFRTs) are joined with metal sheets via cold formed cylindrical, elliptical and polygonal pin structures which are directly pressed into the CFRT component after local infrared heating. In comparison to already available studies, the unique novelty is the use of non-rotational symmetric pin structures for the CFRT/metal hybrid joining. Thus, a variation in the fiber orientation in the CFRT component as well as a variation in the non-rotational symmetric pins’ orientation in relation to the sample orientation is conducted. The created samples are consequently mechanically tested via single lap shear experiments in a quasi-static state. Finally, the failure behavior of the single lap shear samples is investigated with the help of microscopic images and detailed photographs. In the single lap shear tests, it could be shown that non-rotational symmetric pin structures lead to an increase in maximum testing forces of up to 74% when compared to cylindrical pins. However, when normalized to the pin foot print related joint strength, only one polygonal pin variation showed increased joint strength in comparison to cylindrical pin structures. The investigation of the failure behavior showed two distinct failure modes. The first failure mode was failure of the CFRT component due to an exceedance of the maximum bearing strength of the pin-hole leading to significant damage in the CFRT component. The second failure mode was pin-deflection due to the applied testing load and a subsequent pin extraction from the CFRT component resulting in significantly less visible damage in the CFRT component. Generally, CFRT failure is more likely with a fiber orientation of 0° in relation to the load direction while pin extraction typically occurs with a fiber orientation of 90°. It is assumed that for future investigations, pin structures with an undercutting shape that creates an interlocking joint could counteract the tendency for pin-extraction and consequently lead to increased maximum joint strengths. article_number: '4962' author: - first_name: Julian full_name: Popp, Julian last_name: Popp - first_name: David full_name: Römisch, David last_name: Römisch - first_name: Marion full_name: Merklein, Marion last_name: Merklein - first_name: Dietmar full_name: Drummer, Dietmar last_name: Drummer citation: ama: Popp J, Römisch D, Merklein M, Drummer D. Joining of CFRT/Steel Hybrid Parts via Direct Pressing of Cold Formed Non-Rotational Symmetric Pin Structures. Applied Sciences. 2022;12(10). doi:10.3390/app12104962 apa: Popp, J., Römisch, D., Merklein, M., & Drummer, D. (2022). Joining of CFRT/Steel Hybrid Parts via Direct Pressing of Cold Formed Non-Rotational Symmetric Pin Structures. Applied Sciences, 12(10), Article 4962. https://doi.org/10.3390/app12104962 bibtex: '@article{Popp_Römisch_Merklein_Drummer_2022, title={Joining of CFRT/Steel Hybrid Parts via Direct Pressing of Cold Formed Non-Rotational Symmetric Pin Structures}, volume={12}, DOI={10.3390/app12104962}, number={104962}, journal={Applied Sciences}, publisher={MDPI AG}, author={Popp, Julian and Römisch, David and Merklein, Marion and Drummer, Dietmar}, year={2022} }' chicago: Popp, Julian, David Römisch, Marion Merklein, and Dietmar Drummer. “Joining of CFRT/Steel Hybrid Parts via Direct Pressing of Cold Formed Non-Rotational Symmetric Pin Structures.” Applied Sciences 12, no. 10 (2022). https://doi.org/10.3390/app12104962. ieee: 'J. Popp, D. Römisch, M. Merklein, and D. Drummer, “Joining of CFRT/Steel Hybrid Parts via Direct Pressing of Cold Formed Non-Rotational Symmetric Pin Structures,” Applied Sciences, vol. 12, no. 10, Art. no. 4962, 2022, doi: 10.3390/app12104962.' mla: Popp, Julian, et al. “Joining of CFRT/Steel Hybrid Parts via Direct Pressing of Cold Formed Non-Rotational Symmetric Pin Structures.” Applied Sciences, vol. 12, no. 10, 4962, MDPI AG, 2022, doi:10.3390/app12104962. short: J. Popp, D. Römisch, M. Merklein, D. Drummer, Applied Sciences 12 (2022). date_created: 2022-12-05T21:48:01Z date_updated: 2022-12-05T21:49:30Z doi: 10.3390/app12104962 intvolume: ' 12' issue: '10' keyword: - Fluid Flow and Transfer Processes - Computer Science Applications - Process Chemistry and Technology - General Engineering - Instrumentation - General Materials Science language: - iso: eng project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '145' name: 'TRR 285 – C01: TRR 285 - Subproject C01' publication: Applied Sciences publication_identifier: issn: - 2076-3417 publication_status: published publisher: MDPI AG status: public title: Joining of CFRT/Steel Hybrid Parts via Direct Pressing of Cold Formed Non-Rotational Symmetric Pin Structures type: journal_article user_id: '7850' volume: 12 year: '2022' ... --- _id: '34221' abstract: - lang: eng text: Unter dem Begriff der Auflösung wird für gewöhnlich das kleinste messbare Merkmal eines Messsystems verstanden. In der dimensionellen Computertomografie hingegen haben sich in den vergangenen Jahren mehrere Auflösungskonzepte etabliert, die aufgrund der fehlenden Normung zueinander im Kontrast stehen. In diesem Beitrag werden die drei häufigsten Konzepte, die Voxelgröße, die Ortsauflösung und die metrologische Strukturauflösung in Kürze vorgestellt. Anschließend wird eine Abgrenzung zwischen den Konzepten getroffen und ein Integration der bestehenden Konzepte in ein gemeinsames Amplituden-Wellenlängen Diagramm diskutiert. author: - first_name: Felix full_name: Binder, Felix last_name: Binder - first_name: Tino full_name: Hausotte, Tino last_name: Hausotte citation: ama: Binder F, Hausotte T. Über die Abgrenzung von Auflösungskonzepten in der industriellen Computertomografie. tm - Technisches Messen. 2022;89(s1):20-24. doi:10.1515/teme-2022-0065 apa: Binder, F., & Hausotte, T. (2022). Über die Abgrenzung von Auflösungskonzepten in der industriellen Computertomografie. Tm - Technisches Messen, 89(s1), 20–24. https://doi.org/10.1515/teme-2022-0065 bibtex: '@article{Binder_Hausotte_2022, title={Über die Abgrenzung von Auflösungskonzepten in der industriellen Computertomografie}, volume={89}, DOI={10.1515/teme-2022-0065}, number={s1}, journal={tm - Technisches Messen}, publisher={Walter de Gruyter GmbH}, author={Binder, Felix and Hausotte, Tino}, year={2022}, pages={20–24} }' chicago: 'Binder, Felix, and Tino Hausotte. “Über Die Abgrenzung von Auflösungskonzepten in Der Industriellen Computertomografie.” Tm - Technisches Messen 89, no. s1 (2022): 20–24. https://doi.org/10.1515/teme-2022-0065.' ieee: 'F. Binder and T. Hausotte, “Über die Abgrenzung von Auflösungskonzepten in der industriellen Computertomografie,” tm - Technisches Messen, vol. 89, no. s1, pp. 20–24, 2022, doi: 10.1515/teme-2022-0065.' mla: Binder, Felix, and Tino Hausotte. “Über Die Abgrenzung von Auflösungskonzepten in Der Industriellen Computertomografie.” Tm - Technisches Messen, vol. 89, no. s1, Walter de Gruyter GmbH, 2022, pp. 20–24, doi:10.1515/teme-2022-0065. short: F. Binder, T. Hausotte, Tm - Technisches Messen 89 (2022) 20–24. date_created: 2022-12-05T21:43:51Z date_updated: 2022-12-05T21:44:52Z doi: 10.1515/teme-2022-0065 intvolume: ' 89' issue: s1 keyword: - Electrical and Electronic Engineering - Instrumentation language: - iso: eng page: 20-24 project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '149' name: 'TRR 285 – C05: TRR 285 - Subproject C05' publication: tm - Technisches Messen publication_identifier: issn: - 2196-7113 - 0171-8096 publication_status: published publisher: Walter de Gruyter GmbH status: public title: Über die Abgrenzung von Auflösungskonzepten in der industriellen Computertomografie type: journal_article user_id: '7850' volume: 89 year: '2022' ... --- _id: '34220' abstract: - lang: eng text: Die Erkennbarkeit von Rissen und geometrischen Qualitätskennwerten von Fügeverbindungen mittels Computertomografie ist von der Interfacestrukturauflösung abhängig, welche mittels geeigneter Prüfkörper untersucht wird. Die Reduktion von Abbildungsartefakten im Bereich von Bauteilzwischenräumen und -oberflächen verbessert deren dimensionelle Erfassbarkeit. author: - first_name: Matthias full_name: Busch, Matthias last_name: Busch - first_name: Lorenz full_name: Butzhammer, Lorenz last_name: Butzhammer - first_name: Tino full_name: Hausotte, Tino last_name: Hausotte citation: ama: Busch M, Butzhammer L, Hausotte T. Herausforderungen bei computertomografischen Untersuchungen von Fügeverbindungen. tm - Technisches Messen. 2022;89(s1):83-88. doi:10.1515/teme-2022-0061 apa: Busch, M., Butzhammer, L., & Hausotte, T. (2022). Herausforderungen bei computertomografischen Untersuchungen von Fügeverbindungen. Tm - Technisches Messen, 89(s1), 83–88. https://doi.org/10.1515/teme-2022-0061 bibtex: '@article{Busch_Butzhammer_Hausotte_2022, title={Herausforderungen bei computertomografischen Untersuchungen von Fügeverbindungen}, volume={89}, DOI={10.1515/teme-2022-0061}, number={s1}, journal={tm - Technisches Messen}, publisher={Walter de Gruyter GmbH}, author={Busch, Matthias and Butzhammer, Lorenz and Hausotte, Tino}, year={2022}, pages={83–88} }' chicago: 'Busch, Matthias, Lorenz Butzhammer, and Tino Hausotte. “Herausforderungen Bei Computertomografischen Untersuchungen von Fügeverbindungen.” Tm - Technisches Messen 89, no. s1 (2022): 83–88. https://doi.org/10.1515/teme-2022-0061.' ieee: 'M. Busch, L. Butzhammer, and T. Hausotte, “Herausforderungen bei computertomografischen Untersuchungen von Fügeverbindungen,” tm - Technisches Messen, vol. 89, no. s1, pp. 83–88, 2022, doi: 10.1515/teme-2022-0061.' mla: Busch, Matthias, et al. “Herausforderungen Bei Computertomografischen Untersuchungen von Fügeverbindungen.” Tm - Technisches Messen, vol. 89, no. s1, Walter de Gruyter GmbH, 2022, pp. 83–88, doi:10.1515/teme-2022-0061. short: M. Busch, L. Butzhammer, T. Hausotte, Tm - Technisches Messen 89 (2022) 83–88. date_created: 2022-12-05T21:42:07Z date_updated: 2022-12-05T21:43:30Z doi: 10.1515/teme-2022-0061 intvolume: ' 89' issue: s1 keyword: - Electrical and Electronic Engineering - Instrumentation language: - iso: eng page: 83-88 project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '149' name: 'TRR 285 – C05: TRR 285 - Subproject C05' publication: tm - Technisches Messen publication_identifier: issn: - 2196-7113 - 0171-8096 publication_status: published publisher: Walter de Gruyter GmbH status: public title: Herausforderungen bei computertomografischen Untersuchungen von Fügeverbindungen type: journal_article user_id: '7850' volume: 89 year: '2022' ... --- _id: '34264' abstract: - lang: eng text: In industrial x-ray computed tomography (CT), the application of more complex scan paths in comparison to the typical circular trajectory (${360}^{\circ}$ rotation of the measurement object) can extend the potential of CT. One way to enable such 3D scan trajectories is to use a 6-degrees-of-freedom (DOF) object manipulator system. In our case, a hexapod is mounted on top of the rotary table of a commercial CT scanner. This allows for adaptive tilting of the measurement object during the scan. For high accuracy, the geometry calibration of such setups is typically done using the x-ray projections of a calibrated multi-sphere object. Contrary to this, here, we demonstrate a procedure that is based on only a single sphere and can therefore experimentally be implemented with low effort. Using the intrinsic geometry parameters of the CT device as prior information, the hexapod coordinate system with respect to the CT machine coordinate system is determined by means of a one-step optimization approach. The resulting parameters are used to calculate projection matrices that enable the volume reconstruction for 3D scan trajectories. The method is validated using simulated x-ray images and experimental investigations including dimensional measurements. For the used setup, geometric measurement results for 3D scan trajectories that are calibrated with the presented method show in sum increased errors compared to the circular scans. A limited pose accuracy of the manipulator system is discussed as a potential cause. The results nevertheless indicate that the presented method is generally feasible for dimensional CT measurements provided that the pose accuracy is sufficient. The calibration procedure can therefore be a low-cost and easier to implement alternative compared to trajectory calibration methods based on multi-sphere objects, but with a tendency towards lower measurement accuracy. The methodology can in principle be transferred to different setups with 6-DOF manipulator systems, e.g. C-arm CT devices with a robot arm. article_number: '015403' author: - first_name: Lorenz full_name: Butzhammer, Lorenz last_name: Butzhammer - first_name: Andreas Michael full_name: Müller, Andreas Michael last_name: Müller - first_name: Tino full_name: Hausotte, Tino last_name: Hausotte citation: ama: Butzhammer L, Müller AM, Hausotte T. Calibration of 3D scan trajectories for an industrial computed tomography setup with 6-DOF object manipulator system using a single sphere. Measurement Science and Technology. 2022;34(1). doi:10.1088/1361-6501/ac9856 apa: Butzhammer, L., Müller, A. M., & Hausotte, T. (2022). Calibration of 3D scan trajectories for an industrial computed tomography setup with 6-DOF object manipulator system using a single sphere. Measurement Science and Technology, 34(1), Article 015403. https://doi.org/10.1088/1361-6501/ac9856 bibtex: '@article{Butzhammer_Müller_Hausotte_2022, title={Calibration of 3D scan trajectories for an industrial computed tomography setup with 6-DOF object manipulator system using a single sphere}, volume={34}, DOI={10.1088/1361-6501/ac9856}, number={1015403}, journal={Measurement Science and Technology}, publisher={IOP Publishing}, author={Butzhammer, Lorenz and Müller, Andreas Michael and Hausotte, Tino}, year={2022} }' chicago: Butzhammer, Lorenz, Andreas Michael Müller, and Tino Hausotte. “Calibration of 3D Scan Trajectories for an Industrial Computed Tomography Setup with 6-DOF Object Manipulator System Using a Single Sphere.” Measurement Science and Technology 34, no. 1 (2022). https://doi.org/10.1088/1361-6501/ac9856. ieee: 'L. Butzhammer, A. M. Müller, and T. Hausotte, “Calibration of 3D scan trajectories for an industrial computed tomography setup with 6-DOF object manipulator system using a single sphere,” Measurement Science and Technology, vol. 34, no. 1, Art. no. 015403, 2022, doi: 10.1088/1361-6501/ac9856.' mla: Butzhammer, Lorenz, et al. “Calibration of 3D Scan Trajectories for an Industrial Computed Tomography Setup with 6-DOF Object Manipulator System Using a Single Sphere.” Measurement Science and Technology, vol. 34, no. 1, 015403, IOP Publishing, 2022, doi:10.1088/1361-6501/ac9856. short: L. Butzhammer, A.M. Müller, T. Hausotte, Measurement Science and Technology 34 (2022). date_created: 2022-12-07T10:46:14Z date_updated: 2023-01-13T14:34:31Z department: - _id: '630' doi: 10.1088/1361-6501/ac9856 intvolume: ' 34' issue: '1' keyword: - Applied Mathematics - Instrumentation - Engineering (miscellaneous) language: - iso: eng main_file_link: - open_access: '1' url: https://iopscience.iop.org/article/10.1088/1361-6501/ac9856 oa: '1' project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '133' name: 'TRR 285 - C: TRR 285 - Project Area C' - _id: '149' name: 'TRR 285 – C05: TRR 285 - Subproject C05' publication: Measurement Science and Technology publication_identifier: issn: - 0957-0233 - 1361-6501 publication_status: published publisher: IOP Publishing status: public title: Calibration of 3D scan trajectories for an industrial computed tomography setup with 6-DOF object manipulator system using a single sphere type: journal_article user_id: '7850' volume: 34 year: '2022' ... --- _id: '34224' abstract: - lang: eng text: Crack growth in structures depends on the cyclic loads applied on it, such as mechanical, thermal and contact, as well as residual stresses, etc. To provide an accurate simulation of crack growth in structures, it is of high importance to integrate all kinds of loading situations in the simulations. Adapcrack3D is a simulation program that can accurately predict the propagation of cracks in real structures. However, until now, this three-dimensional program has only considered mechanical loads and static thermal loads. Therefore, the features of Adapcrack3D have been extended by including contact loading in crack growth simulations. The numerical simulation of crack propagation with Adapcrack3D is generally carried out using FE models of structures provided by the user. For simulating models with contact loading situations, Adapcrack3D has been updated to work with FE models containing multiple parts and necessary features such as coupling and surface interactions. Because Adapcrack3D uses the submodel technique for fracture mechanical evaluations, the architecture of the submodel is also modified to simulate models with contact definitions between the crack surfaces. This paper discusses the newly implemented attribute of the program with the help of illustrative examples. The results confirm that the contact simulation in Adapcrack3D is a major step in improving the functionality of the program. article_number: '7557' author: - first_name: Tintu David full_name: Joy, Tintu David id: '30821' last_name: Joy - first_name: Deborah full_name: Weiß, Deborah id: '45673' last_name: Weiß - first_name: Britta full_name: Schramm, Britta id: '4668' last_name: Schramm - first_name: Gunter full_name: Kullmer, Gunter id: '291' last_name: Kullmer citation: ama: Joy TD, Weiß D, Schramm B, Kullmer G. Further Development of 3D Crack Growth Simulation Program to Include Contact Loading Situations. Applied Sciences. 2022;12(15). doi:10.3390/app12157557 apa: Joy, T. D., Weiß, D., Schramm, B., & Kullmer, G. (2022). Further Development of 3D Crack Growth Simulation Program to Include Contact Loading Situations. Applied Sciences, 12(15), Article 7557. https://doi.org/10.3390/app12157557 bibtex: '@article{Joy_Weiß_Schramm_Kullmer_2022, title={Further Development of 3D Crack Growth Simulation Program to Include Contact Loading Situations}, volume={12}, DOI={10.3390/app12157557}, number={157557}, journal={Applied Sciences}, publisher={MDPI AG}, author={Joy, Tintu David and Weiß, Deborah and Schramm, Britta and Kullmer, Gunter}, year={2022} }' chicago: Joy, Tintu David, Deborah Weiß, Britta Schramm, and Gunter Kullmer. “Further Development of 3D Crack Growth Simulation Program to Include Contact Loading Situations.” Applied Sciences 12, no. 15 (2022). https://doi.org/10.3390/app12157557. ieee: 'T. D. Joy, D. Weiß, B. Schramm, and G. Kullmer, “Further Development of 3D Crack Growth Simulation Program to Include Contact Loading Situations,” Applied Sciences, vol. 12, no. 15, Art. no. 7557, 2022, doi: 10.3390/app12157557.' mla: Joy, Tintu David, et al. “Further Development of 3D Crack Growth Simulation Program to Include Contact Loading Situations.” Applied Sciences, vol. 12, no. 15, 7557, MDPI AG, 2022, doi:10.3390/app12157557. short: T.D. Joy, D. Weiß, B. Schramm, G. Kullmer, Applied Sciences 12 (2022). date_created: 2022-12-05T21:49:48Z date_updated: 2023-04-27T10:13:44Z department: - _id: '143' doi: 10.3390/app12157557 intvolume: ' 12' issue: '15' keyword: - Fluid Flow and Transfer Processes - Computer Science Applications - Process Chemistry and Technology - General Engineering - Instrumentation - General Materials Science language: - iso: eng project: - _id: '130' grant_number: '418701707' name: 'TRR 285: TRR 285' - _id: '132' name: 'TRR 285 - B: TRR 285 - Project Area B' - _id: '143' name: 'TRR 285 – B04: TRR 285 - Subproject B04' publication: Applied Sciences publication_identifier: issn: - 2076-3417 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Further Development of 3D Crack Growth Simulation Program to Include Contact Loading Situations type: journal_article user_id: '45673' volume: 12 year: '2022' ... --- _id: '30213' abstract: - lang: eng text: Requirement changes and cascading effects of change propagation are major sources of inefficiencies in product development and increase the risk of project failure. Proactive change management of requirement changes yields the potential to handle such changes efficiently. A systematic approach is required for proactive change management to assess and reduce the risk of a requirement change with appropriate effort in industrial application. Within the paper at hand, a novel method for Proactive Management of Requirement Changes (ProMaRC) is presented. It is developed in close collaboration with industry experts and evaluated based on workshops, pilot users’ feedback, three industrial case studies from the automotive industry and five development projects from research. To limit the application effort, an automated approach for dependency analysis based on the machine learning technique BERT and semi-automated assessment of change likelihood and impact using a modified PageRank algorithm is developed. Applying the method, the risks of requirement changes are assessed systematically and reduced by means of proactive change measures. Evaluation shows high performance of dependency analysis and confirms the applicability and usefulness of the method. This contribution opens up the research space of proactive risk management for requirement changes which is currently almost unexploited. It enables more efficient product development. article_number: '1874' author: - first_name: Iris full_name: Gräßler, Iris id: '47565' last_name: Gräßler orcid: 0000-0001-5765-971X - first_name: Christian full_name: Oleff, Christian id: '41188' last_name: Oleff orcid: 0000-0002-0983-1850 - first_name: Daniel full_name: Preuß, Daniel id: '40253' last_name: Preuß citation: ama: Gräßler I, Oleff C, Preuß D. Proactive Management of Requirement Changes in the Development of Complex Technical Systems. Applied Sciences. 2022;12(4). doi:10.3390/app12041874 apa: Gräßler, I., Oleff, C., & Preuß, D. (2022). Proactive Management of Requirement Changes in the Development of Complex Technical Systems. Applied Sciences, 12(4), Article 1874. https://doi.org/10.3390/app12041874 bibtex: '@article{Gräßler_Oleff_Preuß_2022, title={Proactive Management of Requirement Changes in the Development of Complex Technical Systems}, volume={12}, DOI={10.3390/app12041874}, number={41874}, journal={Applied Sciences}, publisher={MDPI AG}, author={Gräßler, Iris and Oleff, Christian and Preuß, Daniel}, year={2022} }' chicago: Gräßler, Iris, Christian Oleff, and Daniel Preuß. “Proactive Management of Requirement Changes in the Development of Complex Technical Systems.” Applied Sciences 12, no. 4 (2022). https://doi.org/10.3390/app12041874. ieee: 'I. Gräßler, C. Oleff, and D. Preuß, “Proactive Management of Requirement Changes in the Development of Complex Technical Systems,” Applied Sciences, vol. 12, no. 4, Art. no. 1874, 2022, doi: 10.3390/app12041874.' mla: Gräßler, Iris, et al. “Proactive Management of Requirement Changes in the Development of Complex Technical Systems.” Applied Sciences, vol. 12, no. 4, 1874, MDPI AG, 2022, doi:10.3390/app12041874. short: I. Gräßler, C. Oleff, D. Preuß, Applied Sciences 12 (2022). date_created: 2022-03-08T12:37:42Z date_updated: 2023-05-03T08:40:30Z department: - _id: '152' doi: 10.3390/app12041874 intvolume: ' 12' issue: '4' keyword: - Fluid Flow and Transfer Processes - Computer Science Applications - Process Chemistry and Technology - General Engineering - Instrumentation - General Materials Science language: - iso: eng publication: Applied Sciences publication_identifier: issn: - 2076-3417 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Proactive Management of Requirement Changes in the Development of Complex Technical Systems type: journal_article user_id: '5905' volume: 12 year: '2022' ... --- _id: '30863' abstract: - lang: eng text: "Abstract\r\n In this paper a measurement procedure to identify viscoelastic material parameters of plate-like samples using broadband ultrasonic waves is presented. Ultrasonic Lamb waves are excited via the thermoelastic effect using laser radiation and detected by a piezoelectric transducer. The resulting measurement data is transformed to yield information about multiple propagating Lamb waves as well as their attenuation. These results are compared to simulation results in an inverse procedure to identify the parameters of an elastic and a viscoelastic material model." author: - first_name: Sarah full_name: Johannesmann, Sarah id: '29190' last_name: Johannesmann - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Nadine full_name: Feldmann, Nadine id: '23082' last_name: Feldmann - first_name: Henning full_name: Zeipert, Henning id: '32580' last_name: Zeipert - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning citation: ama: Johannesmann S, Claes L, Feldmann N, Zeipert H, Henning B. Lamb wave based approach to the determination of acoustic material parameters. tm - Technisches Messen. 2022;89(7-8):493-506. doi:10.1515/teme-2021-0134 apa: Johannesmann, S., Claes, L., Feldmann, N., Zeipert, H., & Henning, B. (2022). Lamb wave based approach to the determination of acoustic material parameters. Tm - Technisches Messen, 89(7–8), 493–506. https://doi.org/10.1515/teme-2021-0134 bibtex: '@article{Johannesmann_Claes_Feldmann_Zeipert_Henning_2022, title={Lamb wave based approach to the determination of acoustic material parameters}, volume={89}, DOI={10.1515/teme-2021-0134}, number={7–8}, journal={tm - Technisches Messen}, publisher={Walter de Gruyter GmbH}, author={Johannesmann, Sarah and Claes, Leander and Feldmann, Nadine and Zeipert, Henning and Henning, Bernd}, year={2022}, pages={493–506} }' chicago: 'Johannesmann, Sarah, Leander Claes, Nadine Feldmann, Henning Zeipert, and Bernd Henning. “Lamb Wave Based Approach to the Determination of Acoustic Material Parameters.” Tm - Technisches Messen 89, no. 7–8 (2022): 493–506. https://doi.org/10.1515/teme-2021-0134.' ieee: 'S. Johannesmann, L. Claes, N. Feldmann, H. Zeipert, and B. Henning, “Lamb wave based approach to the determination of acoustic material parameters,” tm - Technisches Messen, vol. 89, no. 7–8, pp. 493–506, 2022, doi: 10.1515/teme-2021-0134.' mla: Johannesmann, Sarah, et al. “Lamb Wave Based Approach to the Determination of Acoustic Material Parameters.” Tm - Technisches Messen, vol. 89, no. 7–8, Walter de Gruyter GmbH, 2022, pp. 493–506, doi:10.1515/teme-2021-0134. short: S. Johannesmann, L. Claes, N. Feldmann, H. Zeipert, B. Henning, Tm - Technisches Messen 89 (2022) 493–506. date_created: 2022-04-12T11:00:22Z date_updated: 2023-10-23T06:56:20Z department: - _id: '49' doi: 10.1515/teme-2021-0134 intvolume: ' 89' issue: 7 - 8 keyword: - Electrical and Electronic Engineering - Instrumentation language: - iso: eng page: 493 - 506 project: - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' - _id: '105' grant_number: '449607253' name: 'LaWaMoRe: Vermiedene Kreuzungen von Lamb-Wellenmoden in mehrlagigen Strukturen' - _id: '89' grant_number: '409779252' name: 'VaMP: Vollständige Bestimmung der akustischen Materialparameter von Polymeren' - _id: '157' grant_number: '495847374' name: 'FaMOUS: Ein ultraschallbasiertes Messverfahren unter Berücksichtigung viskoelastischer Eigenschaften zur Charakterisierung der Faser-Matrix-Haftung bei Organoblechen sowie deren realitätsnahe Modellierung' publication: tm - Technisches Messen publication_identifier: issn: - 2196-7113 - 0171-8096 publication_status: published publisher: Walter de Gruyter GmbH quality_controlled: '1' status: public title: Lamb wave based approach to the determination of acoustic material parameters type: journal_article user_id: '11829' volume: 89 year: '2022' ... --- _id: '34054' abstract: - lang: eng text: AbstractColloidal nanosphere monolayers—used as a lithography mask for site-controlled material deposition or removal—offer the possibility of cost-effective patterning of large surface areas. In the present study, an automated analysis of scanning electron microscopy (SEM) images is described, which enables the recognition of the individual nanospheres in densely packed monolayers in order to perform a statistical quantification of the sphere size, mask opening size, and sphere-sphere separation distributions. Search algorithms based on Fourier transformation, cross-correlation, multiple-angle intensity profiling, and sphere edge point detection techniques allow for a sphere detection efficiency of at least 99.8%, even in the case of considerable sphere size variations. While the sphere positions and diameters are determined by fitting circles to the spheres edge points, the openings between sphere triples are detected by intensity thresholding. For the analyzed polystyrene sphere monolayers with sphere sizes between 220 and 600 nm and a diameter spread of around 3% coefficients of variation of 6.8–8.1% for the opening size are found. By correlating the mentioned size distributions, it is shown that, in this case, the dominant contribution to the opening size variation stems from nanometer-scale positional variations of the spheres. author: - first_name: Thomas full_name: Riedl, Thomas id: '36950' last_name: Riedl - first_name: Jörg full_name: Lindner, Jörg id: '20797' last_name: Lindner citation: ama: Riedl T, Lindner J. Automated SEM Image Analysis of the Sphere Diameter, Sphere-Sphere Separation, and Opening Size Distributions of Nanosphere Lithography Masks. Microscopy and Microanalysis. 2021;28(1):185-195. doi:10.1017/s1431927621013866 apa: Riedl, T., & Lindner, J. (2021). Automated SEM Image Analysis of the Sphere Diameter, Sphere-Sphere Separation, and Opening Size Distributions of Nanosphere Lithography Masks. Microscopy and Microanalysis, 28(1), 185–195. https://doi.org/10.1017/s1431927621013866 bibtex: '@article{Riedl_Lindner_2021, title={Automated SEM Image Analysis of the Sphere Diameter, Sphere-Sphere Separation, and Opening Size Distributions of Nanosphere Lithography Masks}, volume={28}, DOI={10.1017/s1431927621013866}, number={1}, journal={Microscopy and Microanalysis}, publisher={Cambridge University Press (CUP)}, author={Riedl, Thomas and Lindner, Jörg}, year={2021}, pages={185–195} }' chicago: 'Riedl, Thomas, and Jörg Lindner. “Automated SEM Image Analysis of the Sphere Diameter, Sphere-Sphere Separation, and Opening Size Distributions of Nanosphere Lithography Masks.” Microscopy and Microanalysis 28, no. 1 (2021): 185–95. https://doi.org/10.1017/s1431927621013866.' ieee: 'T. Riedl and J. Lindner, “Automated SEM Image Analysis of the Sphere Diameter, Sphere-Sphere Separation, and Opening Size Distributions of Nanosphere Lithography Masks,” Microscopy and Microanalysis, vol. 28, no. 1, pp. 185–195, 2021, doi: 10.1017/s1431927621013866.' mla: Riedl, Thomas, and Jörg Lindner. “Automated SEM Image Analysis of the Sphere Diameter, Sphere-Sphere Separation, and Opening Size Distributions of Nanosphere Lithography Masks.” Microscopy and Microanalysis, vol. 28, no. 1, Cambridge University Press (CUP), 2021, pp. 185–95, doi:10.1017/s1431927621013866. short: T. Riedl, J. Lindner, Microscopy and Microanalysis 28 (2021) 185–195. date_created: 2022-11-10T14:13:19Z date_updated: 2023-01-10T12:11:24Z department: - _id: '15' - _id: '230' doi: 10.1017/s1431927621013866 intvolume: ' 28' issue: '1' keyword: - Instrumentation language: - iso: eng page: 185-195 publication: Microscopy and Microanalysis publication_identifier: issn: - 1431-9276 - 1435-8115 publication_status: published publisher: Cambridge University Press (CUP) status: public title: Automated SEM Image Analysis of the Sphere Diameter, Sphere-Sphere Separation, and Opening Size Distributions of Nanosphere Lithography Masks type: journal_article user_id: '77496' volume: 28 year: '2021' ... --- _id: '29813' author: - first_name: Miroslav full_name: Cieslar, Miroslav last_name: Cieslar - first_name: Rostislav full_name: Králík, Rostislav last_name: Králík - first_name: Lucia full_name: Bajtošová, Lucia last_name: Bajtošová - first_name: Barbora full_name: Křivská, Barbora last_name: Křivská - first_name: Michal full_name: Hájek, Michal last_name: Hájek - first_name: Sára full_name: Belejová, Sára last_name: Belejová - first_name: Olexandr full_name: Grydin, Olexandr id: '43822' last_name: Grydin - first_name: Mykhailo full_name: Stolbchenko, Mykhailo last_name: Stolbchenko - first_name: Mirko full_name: Schaper, Mirko id: '43720' last_name: Schaper citation: ama: Cieslar M, Králík R, Bajtošová L, et al. High Temperature Annealing of Twin-Roll Cast Al-Li-Based Alloy Studied by In-situ SEM and STEM. Microscopy and Microanalysis. 2021;27(S2):79-80. doi:10.1017/s1431927621013398 apa: Cieslar, M., Králík, R., Bajtošová, L., Křivská, B., Hájek, M., Belejová, S., Grydin, O., Stolbchenko, M., & Schaper, M. (2021). High Temperature Annealing of Twin-Roll Cast Al-Li-Based Alloy Studied by In-situ SEM and STEM. Microscopy and Microanalysis, 27(S2), 79–80. https://doi.org/10.1017/s1431927621013398 bibtex: '@article{Cieslar_Králík_Bajtošová_Křivská_Hájek_Belejová_Grydin_Stolbchenko_Schaper_2021, title={High Temperature Annealing of Twin-Roll Cast Al-Li-Based Alloy Studied by In-situ SEM and STEM}, volume={27}, DOI={10.1017/s1431927621013398}, number={S2}, journal={Microscopy and Microanalysis}, publisher={Cambridge University Press (CUP)}, author={Cieslar, Miroslav and Králík, Rostislav and Bajtošová, Lucia and Křivská, Barbora and Hájek, Michal and Belejová, Sára and Grydin, Olexandr and Stolbchenko, Mykhailo and Schaper, Mirko}, year={2021}, pages={79–80} }' chicago: 'Cieslar, Miroslav, Rostislav Králík, Lucia Bajtošová, Barbora Křivská, Michal Hájek, Sára Belejová, Olexandr Grydin, Mykhailo Stolbchenko, and Mirko Schaper. “High Temperature Annealing of Twin-Roll Cast Al-Li-Based Alloy Studied by In-Situ SEM and STEM.” Microscopy and Microanalysis 27, no. S2 (2021): 79–80. https://doi.org/10.1017/s1431927621013398.' ieee: 'M. Cieslar et al., “High Temperature Annealing of Twin-Roll Cast Al-Li-Based Alloy Studied by In-situ SEM and STEM,” Microscopy and Microanalysis, vol. 27, no. S2, pp. 79–80, 2021, doi: 10.1017/s1431927621013398.' mla: Cieslar, Miroslav, et al. “High Temperature Annealing of Twin-Roll Cast Al-Li-Based Alloy Studied by In-Situ SEM and STEM.” Microscopy and Microanalysis, vol. 27, no. S2, Cambridge University Press (CUP), 2021, pp. 79–80, doi:10.1017/s1431927621013398. short: M. Cieslar, R. Králík, L. Bajtošová, B. Křivská, M. Hájek, S. Belejová, O. Grydin, M. Stolbchenko, M. Schaper, Microscopy and Microanalysis 27 (2021) 79–80. date_created: 2022-02-11T17:33:29Z date_updated: 2023-06-01T14:38:37Z department: - _id: '158' doi: 10.1017/s1431927621013398 intvolume: ' 27' issue: S2 keyword: - Instrumentation language: - iso: eng page: 79-80 publication: Microscopy and Microanalysis publication_identifier: issn: - 1431-9276 - 1435-8115 publication_status: published publisher: Cambridge University Press (CUP) quality_controlled: '1' status: public title: High Temperature Annealing of Twin-Roll Cast Al-Li-Based Alloy Studied by In-situ SEM and STEM type: journal_article user_id: '43720' volume: 27 year: '2021' ... --- _id: '29814' author: - first_name: Barbora full_name: Křivská, Barbora last_name: Křivská - first_name: Michaela full_name: Šlapáková, Michaela last_name: Šlapáková - first_name: Peter full_name: Minárik, Peter last_name: Minárik - first_name: Klaudia full_name: Fekete, Klaudia last_name: Fekete - first_name: Rostislav full_name: Králík, Rostislav last_name: Králík - first_name: Mykhailo full_name: Stolbchenko, Mykhailo last_name: Stolbchenko - first_name: Mirko full_name: Schaper, Mirko id: '43720' last_name: Schaper - first_name: Olexandr full_name: Grydin, Olexandr id: '43822' last_name: Grydin citation: ama: Křivská B, Šlapáková M, Minárik P, et al. Intermetallic Phase Growth in Al-steel Clad Strip during In-situ Heating in TEM. Microscopy and Microanalysis. 2021;27(S2):91-92. doi:10.1017/s1431927621013453 apa: Křivská, B., Šlapáková, M., Minárik, P., Fekete, K., Králík, R., Stolbchenko, M., Schaper, M., & Grydin, O. (2021). Intermetallic Phase Growth in Al-steel Clad Strip during In-situ Heating in TEM. Microscopy and Microanalysis, 27(S2), 91–92. https://doi.org/10.1017/s1431927621013453 bibtex: '@article{Křivská_Šlapáková_Minárik_Fekete_Králík_Stolbchenko_Schaper_Grydin_2021, title={Intermetallic Phase Growth in Al-steel Clad Strip during In-situ Heating in TEM}, volume={27}, DOI={10.1017/s1431927621013453}, number={S2}, journal={Microscopy and Microanalysis}, publisher={Cambridge University Press (CUP)}, author={Křivská, Barbora and Šlapáková, Michaela and Minárik, Peter and Fekete, Klaudia and Králík, Rostislav and Stolbchenko, Mykhailo and Schaper, Mirko and Grydin, Olexandr}, year={2021}, pages={91–92} }' chicago: 'Křivská, Barbora, Michaela Šlapáková, Peter Minárik, Klaudia Fekete, Rostislav Králík, Mykhailo Stolbchenko, Mirko Schaper, and Olexandr Grydin. “Intermetallic Phase Growth in Al-Steel Clad Strip during In-Situ Heating in TEM.” Microscopy and Microanalysis 27, no. S2 (2021): 91–92. https://doi.org/10.1017/s1431927621013453.' ieee: 'B. Křivská et al., “Intermetallic Phase Growth in Al-steel Clad Strip during In-situ Heating in TEM,” Microscopy and Microanalysis, vol. 27, no. S2, pp. 91–92, 2021, doi: 10.1017/s1431927621013453.' mla: Křivská, Barbora, et al. “Intermetallic Phase Growth in Al-Steel Clad Strip during In-Situ Heating in TEM.” Microscopy and Microanalysis, vol. 27, no. S2, Cambridge University Press (CUP), 2021, pp. 91–92, doi:10.1017/s1431927621013453. short: B. Křivská, M. Šlapáková, P. Minárik, K. Fekete, R. Králík, M. Stolbchenko, M. Schaper, O. Grydin, Microscopy and Microanalysis 27 (2021) 91–92. date_created: 2022-02-11T17:39:16Z date_updated: 2023-06-01T14:38:28Z department: - _id: '158' doi: 10.1017/s1431927621013453 intvolume: ' 27' issue: S2 keyword: - Instrumentation language: - iso: eng page: 91-92 publication: Microscopy and Microanalysis publication_identifier: issn: - 1431-9276 - 1435-8115 publication_status: published publisher: Cambridge University Press (CUP) quality_controlled: '1' status: public title: Intermetallic Phase Growth in Al-steel Clad Strip during In-situ Heating in TEM type: journal_article user_id: '43720' volume: 27 year: '2021' ... --- _id: '35723' abstract: - lang: eng text: The development of renewable energies and smart mobility has profoundly impacted the future of the distribution grid. An increasing bidirectional energy flow stresses the assets of the distribution grid, especially medium voltage switchgear. This calls for improved maintenance strategies to prevent critical failures. Predictive maintenance, a maintenance strategy relying on current condition data of assets, serves as a guideline. Novel sensors covering thermal, mechanical, and partial discharge aspects of switchgear, enable continuous condition monitoring of some of the most critical assets of the distribution grid. Combined with machine learning algorithms, the demands put on the distribution grid by the energy and mobility revolutions can be handled. In this paper, we review the current state-of-the-art of all aspects of condition monitoring for medium voltage switchgear. Furthermore, we present an approach to develop a predictive maintenance system based on novel sensors and machine learning. We show how the existing medium voltage grid infrastructure can adapt these new needs on an economic scale. article_number: '2099' author: - first_name: Martin W. full_name: Hoffmann, Martin W. last_name: Hoffmann - first_name: Stephan full_name: Wildermuth, Stephan last_name: Wildermuth - first_name: Ralf full_name: Gitzel, Ralf last_name: Gitzel - first_name: Aydin full_name: Boyaci, Aydin last_name: Boyaci - first_name: Jörg full_name: Gebhardt, Jörg last_name: Gebhardt - first_name: Holger full_name: Kaul, Holger last_name: Kaul - first_name: Ido full_name: Amihai, Ido last_name: Amihai - first_name: Bodo full_name: Forg, Bodo last_name: Forg - first_name: Michael full_name: Suriyah, Michael last_name: Suriyah - first_name: Thomas full_name: Leibfried, Thomas last_name: Leibfried - first_name: Volker full_name: Stich, Volker last_name: Stich - first_name: Jan full_name: Hicking, Jan last_name: Hicking - first_name: Martin full_name: Bremer, Martin last_name: Bremer - first_name: Lars full_name: Kaminski, Lars last_name: Kaminski - first_name: Daniel full_name: Beverungen, Daniel id: '59677' last_name: Beverungen - first_name: Philipp full_name: zur Heiden, Philipp id: '64394' last_name: zur Heiden - first_name: Tanja full_name: Tornede, Tanja last_name: Tornede citation: ama: Hoffmann MW, Wildermuth S, Gitzel R, et al. Integration of Novel Sensors and Machine Learning for Predictive Maintenance in Medium Voltage Switchgear to Enable the Energy and Mobility Revolutions. Sensors. 2020;20(7). doi:10.3390/s20072099 apa: Hoffmann, M. W., Wildermuth, S., Gitzel, R., Boyaci, A., Gebhardt, J., Kaul, H., Amihai, I., Forg, B., Suriyah, M., Leibfried, T., Stich, V., Hicking, J., Bremer, M., Kaminski, L., Beverungen, D., zur Heiden, P., & Tornede, T. (2020). Integration of Novel Sensors and Machine Learning for Predictive Maintenance in Medium Voltage Switchgear to Enable the Energy and Mobility Revolutions. Sensors, 20(7), Article 2099. https://doi.org/10.3390/s20072099 bibtex: '@article{Hoffmann_Wildermuth_Gitzel_Boyaci_Gebhardt_Kaul_Amihai_Forg_Suriyah_Leibfried_et al._2020, title={Integration of Novel Sensors and Machine Learning for Predictive Maintenance in Medium Voltage Switchgear to Enable the Energy and Mobility Revolutions}, volume={20}, DOI={10.3390/s20072099}, number={72099}, journal={Sensors}, publisher={MDPI AG}, author={Hoffmann, Martin W. and Wildermuth, Stephan and Gitzel, Ralf and Boyaci, Aydin and Gebhardt, Jörg and Kaul, Holger and Amihai, Ido and Forg, Bodo and Suriyah, Michael and Leibfried, Thomas and et al.}, year={2020} }' chicago: Hoffmann, Martin W., Stephan Wildermuth, Ralf Gitzel, Aydin Boyaci, Jörg Gebhardt, Holger Kaul, Ido Amihai, et al. “Integration of Novel Sensors and Machine Learning for Predictive Maintenance in Medium Voltage Switchgear to Enable the Energy and Mobility Revolutions.” Sensors 20, no. 7 (2020). https://doi.org/10.3390/s20072099. ieee: 'M. W. Hoffmann et al., “Integration of Novel Sensors and Machine Learning for Predictive Maintenance in Medium Voltage Switchgear to Enable the Energy and Mobility Revolutions,” Sensors, vol. 20, no. 7, Art. no. 2099, 2020, doi: 10.3390/s20072099.' mla: Hoffmann, Martin W., et al. “Integration of Novel Sensors and Machine Learning for Predictive Maintenance in Medium Voltage Switchgear to Enable the Energy and Mobility Revolutions.” Sensors, vol. 20, no. 7, 2099, MDPI AG, 2020, doi:10.3390/s20072099. short: M.W. Hoffmann, S. Wildermuth, R. Gitzel, A. Boyaci, J. Gebhardt, H. Kaul, I. Amihai, B. Forg, M. Suriyah, T. Leibfried, V. Stich, J. Hicking, M. Bremer, L. Kaminski, D. Beverungen, P. zur Heiden, T. Tornede, Sensors 20 (2020). date_created: 2023-01-10T09:39:14Z date_updated: 2023-01-10T09:53:13Z department: - _id: '526' doi: 10.3390/s20072099 intvolume: ' 20' issue: '7' keyword: - Electrical and Electronic Engineering - Biochemistry - Instrumentation - Atomic and Molecular Physics - and Optics - Analytical Chemistry language: - iso: eng publication: Sensors publication_identifier: issn: - 1424-8220 publication_status: published publisher: MDPI AG status: public title: Integration of Novel Sensors and Machine Learning for Predictive Maintenance in Medium Voltage Switchgear to Enable the Energy and Mobility Revolutions type: journal_article user_id: '21671' volume: 20 year: '2020' ... --- _id: '34088' article_number: '113118' author: - first_name: Julius full_name: Bürger, Julius id: '46952' last_name: Bürger - first_name: Thomas full_name: Riedl, Thomas id: '36950' last_name: Riedl - first_name: Jörg full_name: Lindner, Jörg id: '20797' last_name: Lindner citation: ama: Bürger J, Riedl T, Lindner J. Influence of lens aberrations, specimen thickness and tilt on differential phase contrast STEM images. Ultramicroscopy. 2020;219. doi:10.1016/j.ultramic.2020.113118 apa: Bürger, J., Riedl, T., & Lindner, J. (2020). Influence of lens aberrations, specimen thickness and tilt on differential phase contrast STEM images. Ultramicroscopy, 219, Article 113118. https://doi.org/10.1016/j.ultramic.2020.113118 bibtex: '@article{Bürger_Riedl_Lindner_2020, title={Influence of lens aberrations, specimen thickness and tilt on differential phase contrast STEM images}, volume={219}, DOI={10.1016/j.ultramic.2020.113118}, number={113118}, journal={Ultramicroscopy}, publisher={Elsevier BV}, author={Bürger, Julius and Riedl, Thomas and Lindner, Jörg}, year={2020} }' chicago: Bürger, Julius, Thomas Riedl, and Jörg Lindner. “Influence of Lens Aberrations, Specimen Thickness and Tilt on Differential Phase Contrast STEM Images.” Ultramicroscopy 219 (2020). https://doi.org/10.1016/j.ultramic.2020.113118. ieee: 'J. Bürger, T. Riedl, and J. Lindner, “Influence of lens aberrations, specimen thickness and tilt on differential phase contrast STEM images,” Ultramicroscopy, vol. 219, Art. no. 113118, 2020, doi: 10.1016/j.ultramic.2020.113118.' mla: Bürger, Julius, et al. “Influence of Lens Aberrations, Specimen Thickness and Tilt on Differential Phase Contrast STEM Images.” Ultramicroscopy, vol. 219, 113118, Elsevier BV, 2020, doi:10.1016/j.ultramic.2020.113118. short: J. Bürger, T. Riedl, J. Lindner, Ultramicroscopy 219 (2020). date_created: 2022-11-15T14:15:16Z date_updated: 2023-01-10T12:12:40Z department: - _id: '15' - _id: '230' doi: 10.1016/j.ultramic.2020.113118 intvolume: ' 219' keyword: - Instrumentation - Atomic and Molecular Physics - and Optics - Electronic - Optical and Magnetic Materials language: - iso: eng publication: Ultramicroscopy publication_identifier: issn: - 0304-3991 publication_status: published publisher: Elsevier BV status: public title: Influence of lens aberrations, specimen thickness and tilt on differential phase contrast STEM images type: journal_article user_id: '77496' volume: 219 year: '2020' ... --- _id: '41024' article_number: '034101' author: - first_name: Jure full_name: Gujt, Jure last_name: Gujt - first_name: Peter full_name: Zimmer, Peter last_name: Zimmer - first_name: Frederik full_name: Zysk, Frederik id: '14757' last_name: Zysk - first_name: Vicky full_name: Süß, Vicky last_name: Süß - first_name: Claudia full_name: Felser, Claudia last_name: Felser - first_name: Matthias full_name: Bauer, Matthias id: '47241' last_name: Bauer orcid: 0000-0002-9294-6076 - first_name: Thomas full_name: Kühne, Thomas id: '49079' last_name: Kühne citation: ama: Gujt J, Zimmer P, Zysk F, et al. Water structure near the surface of Weyl semimetals as catalysts in photocatalytic proton reduction. Structural Dynamics. 2020;7(3). doi:10.1063/4.0000008 apa: Gujt, J., Zimmer, P., Zysk, F., Süß, V., Felser, C., Bauer, M., & Kühne, T. (2020). Water structure near the surface of Weyl semimetals as catalysts in photocatalytic proton reduction. Structural Dynamics, 7(3), Article 034101. https://doi.org/10.1063/4.0000008 bibtex: '@article{Gujt_Zimmer_Zysk_Süß_Felser_Bauer_Kühne_2020, title={Water structure near the surface of Weyl semimetals as catalysts in photocatalytic proton reduction}, volume={7}, DOI={10.1063/4.0000008}, number={3034101}, journal={Structural Dynamics}, publisher={AIP Publishing}, author={Gujt, Jure and Zimmer, Peter and Zysk, Frederik and Süß, Vicky and Felser, Claudia and Bauer, Matthias and Kühne, Thomas}, year={2020} }' chicago: Gujt, Jure, Peter Zimmer, Frederik Zysk, Vicky Süß, Claudia Felser, Matthias Bauer, and Thomas Kühne. “Water Structure near the Surface of Weyl Semimetals as Catalysts in Photocatalytic Proton Reduction.” Structural Dynamics 7, no. 3 (2020). https://doi.org/10.1063/4.0000008. ieee: 'J. Gujt et al., “Water structure near the surface of Weyl semimetals as catalysts in photocatalytic proton reduction,” Structural Dynamics, vol. 7, no. 3, Art. no. 034101, 2020, doi: 10.1063/4.0000008.' mla: Gujt, Jure, et al. “Water Structure near the Surface of Weyl Semimetals as Catalysts in Photocatalytic Proton Reduction.” Structural Dynamics, vol. 7, no. 3, 034101, AIP Publishing, 2020, doi:10.1063/4.0000008. short: J. Gujt, P. Zimmer, F. Zysk, V. Süß, C. Felser, M. Bauer, T. Kühne, Structural Dynamics 7 (2020). date_created: 2023-01-30T17:40:53Z date_updated: 2023-01-31T08:23:35Z department: - _id: '35' - _id: '306' doi: 10.1063/4.0000008 intvolume: ' 7' issue: '3' keyword: - Spectroscopy - Condensed Matter Physics - Instrumentation - Radiation language: - iso: eng publication: Structural Dynamics publication_identifier: issn: - 2329-7778 publication_status: published publisher: AIP Publishing status: public title: Water structure near the surface of Weyl semimetals as catalysts in photocatalytic proton reduction type: journal_article user_id: '27611' volume: 7 year: '2020' ... --- _id: '37935' article_number: '041101' author: - first_name: Evan full_name: Meyer-Scott, Evan last_name: Meyer-Scott - first_name: Christine full_name: Silberhorn, Christine id: '26263' last_name: Silberhorn - first_name: Alan full_name: Migdall, Alan last_name: Migdall citation: ama: 'Meyer-Scott E, Silberhorn C, Migdall A. Single-photon sources: Approaching the ideal through          multiplexing. Review of Scientific Instruments. 2020;91(4). doi:10.1063/5.0003320' apa: 'Meyer-Scott, E., Silberhorn, C., & Migdall, A. (2020). Single-photon sources: Approaching the ideal through          multiplexing. Review of Scientific Instruments, 91(4), Article 041101. https://doi.org/10.1063/5.0003320' bibtex: '@article{Meyer-Scott_Silberhorn_Migdall_2020, title={Single-photon sources: Approaching the ideal through          multiplexing}, volume={91}, DOI={10.1063/5.0003320}, number={4041101}, journal={Review of Scientific Instruments}, publisher={AIP Publishing}, author={Meyer-Scott, Evan and Silberhorn, Christine and Migdall, Alan}, year={2020} }' chicago: 'Meyer-Scott, Evan, Christine Silberhorn, and Alan Migdall. “Single-Photon Sources: Approaching the Ideal through          Multiplexing.” Review of Scientific Instruments 91, no. 4 (2020). https://doi.org/10.1063/5.0003320.' ieee: 'E. Meyer-Scott, C. Silberhorn, and A. Migdall, “Single-photon sources: Approaching the ideal through          multiplexing,” Review of Scientific Instruments, vol. 91, no. 4, Art. no. 041101, 2020, doi: 10.1063/5.0003320.' mla: 'Meyer-Scott, Evan, et al. “Single-Photon Sources: Approaching the Ideal through          Multiplexing.” Review of Scientific Instruments, vol. 91, no. 4, 041101, AIP Publishing, 2020, doi:10.1063/5.0003320.' short: E. Meyer-Scott, C. Silberhorn, A. Migdall, Review of Scientific Instruments 91 (2020). date_created: 2023-01-22T17:43:25Z date_updated: 2023-01-30T11:12:47Z department: - _id: '288' - _id: '15' - _id: '623' - _id: '230' doi: 10.1063/5.0003320 intvolume: ' 91' issue: '4' keyword: - Instrumentation language: - iso: eng publication: Review of Scientific Instruments publication_identifier: issn: - 0034-6748 - 1089-7623 publication_status: published publisher: AIP Publishing status: public title: 'Single-photon sources: Approaching the ideal through multiplexing' type: journal_article user_id: '26263' volume: 91 year: '2020' ... --- _id: '32489' abstract: - lang: eng text: |- Abstract The stagnation point heat fluxes of methane/air flames impinging normal on a cylindrical surface were determined experimentally. Light induced phosphorescence from thermographic phosphors was used to investigate surface temperatures at the stagnation point from a nearly 1D laminar premixed flame burning against a water-cooled ceramic tube. The ceramic tube was coated with 1.1% chromium-doped alumina (ruby) at the impingement area and excited with a green light-emitting diode (LED) to measure the surface temperature. The flame temperature profiles were also measured with a thermocouple of type R (Pt/Pt  +  13% Rh). Effects on variations in cold gas velocity (0.1 m s−1–0.5 m s−1) relative to the flame speed, equivalence ratio (Ф  =  0.85–1.2), burner to impingement surface spacing (H/d  =  0.5–2) and surface curvature are reported. The stagnation point heat fluxes are strongly influenced by the flame stabilization mechanism, which changes from burner to wall stabilization, which also is seen from the measured flame temperature profiles. Increasing the cold gas velocity of the reactants leads to higher stagnation point heat fluxes. In addition, decreasing the distance between the burner and impingement surface increases the heat flux, with higher heat fluxes recorded for a tube compared to a flat plate. article_number: '094003' author: - first_name: Peter Obara full_name: Oketch, Peter Obara last_name: Oketch - first_name: Munko full_name: Gonchikzhapov, Munko last_name: Gonchikzhapov - first_name: Ulf full_name: Bergmann, Ulf last_name: Bergmann - first_name: Burak full_name: Atakan, Burak last_name: Atakan citation: ama: Oketch PO, Gonchikzhapov M, Bergmann U, Atakan B. Thermographic phosphor heat flux measurements of laminar methane/air flame impinging on a cylindrical surface. Measurement Science and Technology. 2019;30(9). doi:10.1088/1361-6501/ab217e apa: Oketch, P. O., Gonchikzhapov, M., Bergmann, U., & Atakan, B. (2019). Thermographic phosphor heat flux measurements of laminar methane/air flame impinging on a cylindrical surface. Measurement Science and Technology, 30(9), Article 094003. https://doi.org/10.1088/1361-6501/ab217e bibtex: '@article{Oketch_Gonchikzhapov_Bergmann_Atakan_2019, title={Thermographic phosphor heat flux measurements of laminar methane/air flame impinging on a cylindrical surface}, volume={30}, DOI={10.1088/1361-6501/ab217e}, number={9094003}, journal={Measurement Science and Technology}, publisher={IOP Publishing}, author={Oketch, Peter Obara and Gonchikzhapov, Munko and Bergmann, Ulf and Atakan, Burak}, year={2019} }' chicago: Oketch, Peter Obara, Munko Gonchikzhapov, Ulf Bergmann, and Burak Atakan. “Thermographic Phosphor Heat Flux Measurements of Laminar Methane/Air Flame Impinging on a Cylindrical Surface.” Measurement Science and Technology 30, no. 9 (2019). https://doi.org/10.1088/1361-6501/ab217e. ieee: 'P. O. Oketch, M. Gonchikzhapov, U. Bergmann, and B. Atakan, “Thermographic phosphor heat flux measurements of laminar methane/air flame impinging on a cylindrical surface,” Measurement Science and Technology, vol. 30, no. 9, Art. no. 094003, 2019, doi: 10.1088/1361-6501/ab217e.' mla: Oketch, Peter Obara, et al. “Thermographic Phosphor Heat Flux Measurements of Laminar Methane/Air Flame Impinging on a Cylindrical Surface.” Measurement Science and Technology, vol. 30, no. 9, 094003, IOP Publishing, 2019, doi:10.1088/1361-6501/ab217e. short: P.O. Oketch, M. Gonchikzhapov, U. Bergmann, B. Atakan, Measurement Science and Technology 30 (2019). date_created: 2022-08-02T10:21:24Z date_updated: 2022-08-15T13:53:14Z doi: 10.1088/1361-6501/ab217e intvolume: ' 30' issue: '9' keyword: - Applied Mathematics - Instrumentation - Engineering (miscellaneous) publication: Measurement Science and Technology publication_identifier: issn: - 0957-0233 - 1361-6501 publication_status: published publisher: IOP Publishing status: public title: Thermographic phosphor heat flux measurements of laminar methane/air flame impinging on a cylindrical surface type: journal_article user_id: '94996' volume: 30 year: '2019' ...