@article{TurdumamatovBeldaHeuermann2024, author = {Turdumamatov, Samat and Belda, Aljoscha and Heuermann, Holger}, title = {Shaping a decoupled atmospheric pressure microwave plasma with antenna structures, Maxwell's equations, and boundary conditions}, series = {IEEE Transactions on Plasma Science}, journal = {IEEE Transactions on Plasma Science}, number = {Early Access}, publisher = {IEEE}, issn = {0093-3813 (Print)}, doi = {10.1109/TPS.2024.3383589}, pages = {1 -- 9}, year = {2024}, abstract = {This article addresses the need for an innovative technique in plasma shaping, utilizing antenna structures, Maxwell's laws, and boundary conditions within a shielded environment. The motivation lies in exploring a novel approach to efficiently generate high-energy density plasma with potential applications across various fields. Implemented in an E01 circular cavity resonator, the proposed method involves the use of an impedance and field matching device with a coaxial connector and a specially optimized monopole antenna. This setup feeds a low-loss cavity resonator, resulting in a high-energy density air plasma with a surface temperature exceeding 3500 o C, achieved with a minimal power input of 80 W. The argon plasma, resembling the shape of a simple monopole antenna with modeled complex dielectric values, offers a more energy-efficient alternative compared to traditional, power-intensive plasma shaping methods. Simulations using a commercial electromagnetic (EM) solver validate the design's effectiveness, while experimental validation underscores the method's feasibility and practical implementation. Analyzing various parameters in an argon atmosphere, including hot S -parameters and plasma beam images, the results demonstrate the successful application of this technique, suggesting its potential in coating, furnace technology, fusion, and spectroscopy applications.}, language = {en} } @masterthesis{Zeyen2024, type = {Bachelor Thesis}, author = {Zeyen, Kim}, title = {Seeds : Konzeption und Gestaltung eines Toolkits f{\"u}r die Entwicklung nachhaltiger Webdesigns}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {197 Seiten}, year = {2024}, abstract = {Die Menschheit lebt {\"u}ber ihre Verhältnisse: Permanent {\"u}bersteigt unser Verbrauch die uns j{\"a}hrlich zur Verf{\"u}gung stehenden Ressourcen. Der Energiebedarf digitaler Anwendungen wird dabei meist unterschätzt. Wie Interaction-Designer:innen einen Beitrag zur Entwicklung nachhaltiger Websites leisten können, ist aktuell nur durch aufwendige Recherche zu beantworten. Die Bachelorarbeit »Seeds« stellt einen Schritt im Prozess zu mehr Nachhaltigkeit dar. Sie umfasst ein Toolkit, bestehend aus einer Website und einem Plugin f{\"u}r g{\"a}ngige Designtools. Dieses b{\"u}ndelt alle Informationen, um das Internet barriereärmer, sozialer, ethischer und eben auch ökologisch verträglicher zu gestalten. W{\"a}hrend die Website eine Anlaufstelle f{\"u}r den Wissensaufbau darstellt, unterst{\"u}tzt das Plugin bei der Entwicklung eigener Designs, ohne dass Gestalter:innen den Designprozess verlassen m{\"u}ssen.}, language = {de} } @article{KohlKraemerFohryetal.2024, author = {Kohl, Philipp and Kr{\"a}mer, Yoka and Fohry, Claudia and Kraft, Bodo}, title = {Scoping review of active learning strategies and their evaluation environments for entity recognition tasks}, series = {Deep learning theory and applications}, journal = {Deep learning theory and applications}, editor = {Fred, Ana and Hadjali, Allel and Gusikhin, Oleg and Sansone, Carlo}, publisher = {Springer}, address = {Cham}, isbn = {978-3-031-66694-0 (online ISBN)}, doi = {10.1007/978-3-031-66694-0_6}, pages = {84 -- 106}, year = {2024}, abstract = {We conducted a scoping review for active learning in the domain of natural language processing (NLP), which we summarize in accordance with the PRISMA-ScR guidelines as follows: Objective: Identify active learning strategies that were proposed for entity recognition and their evaluation environments (datasets, metrics, hardware, execution time). Design: We used Scopus and ACM as our search engines. We compared the results with two literature surveys to assess the search quality. We included peer-reviewed English publications introducing or comparing active learning strategies for entity recognition. Results: We analyzed 62 relevant papers and identified 106 active learning strategies. We grouped them into three categories: exploitation-based (60x), exploration-based (14x), and hybrid strategies (32x). We found that all studies used the F1-score as an evaluation metric. Information about hardware (6x) and execution time (13x) was only occasionally included. The 62 papers used 57 different datasets to evaluate their respective strategies. Most datasets contained newspaper articles or biomedical/medical data. Our analysis revealed that 26 out of 57 datasets are publicly accessible. Conclusion: Numerous active learning strategies have been identified, along with significant open questions that still need to be addressed. Researchers and practitioners face difficulties when making data-driven decisions about which active learning strategy to adopt. Conducting comprehensive empirical comparisons using the evaluation environment proposed in this study could help establish best practices in the domain.}, language = {en} } @book{ElsaesserKlebinggatKuhnetal.2024, author = {Elsaesser, Evelyn and Klebinggat, Michael and Kuhn, Wilfried and Michielsens, Constant and Pauels, Willibert and Popkes, Enno E. and Schneider, Elke and Laack, Walter van and Warven, Rinus van}, title = {Schnittstelle Tod - Ist die Menschheit zu retten ohne Vertrauen auf ein Danach}, editor = {Laack, Walter van}, publisher = {van Laack Buchverlag}, address = {Aachen}, isbn = {978-3-936624-58-8}, pages = {156 Seiten}, year = {2024}, language = {de} } @incollection{Krause2024, author = {Krause, Thomas}, title = {Schalung und Ger{\"u}ste}, series = {Zahlentafeln f{\"u}r den Baubetrieb}, booktitle = {Zahlentafeln f{\"u}r den Baubetrieb}, editor = {Krause, Thomas and Ulke, Bernd and Ferger, Martin}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-41329-3 (Print)}, doi = {10.1007/978-3-658-41330-9_10}, pages = {659 -- 705}, year = {2024}, abstract = {Systemschalungen und Systemger{\"u}ste haben den Baustellenbetrieb in vielen Bereichen sehr vereinfacht. Dennoch sind Kenntnisse in diesen Feldern f{\"u}r eine erfolgreiche und effektive Bauleitung unverzichtbar. In diesem Kapitel werden Hinweise und Empfehlungen f{\"u}r die Bemessung und Einsatz von Schalungen, Trag- und Arbeitsger{\"u}sten f{\"u}r den Baustellenbetrieb gegeben.}, language = {de} } @masterthesis{vanderBeek2024, type = {Bachelor Thesis}, author = {van der Beek, Lucas}, title = {PRO+SOUND : Kombinationsprodukt bestehend aus Lautsprecher und Projektor}, publisher = {FH Aachen}, address = {Aachen}, pages = {105 Seiten}, year = {2024}, abstract = {PRO+SOUND ist ein tragbares Kombinationsprodukt, bestehend aus Lautsprecher und Projektor, das sowohl privat zum streamen von Filmen, Serien, Musik und Videospielen als auch professionell als Pr{\"a}sentationsger{\"a}t in H{\"o}rs{\"a}len und Konferenzr{\"a}umen genutzt werden kann. Projektoren und Beamer sind groß, schwer, unhandlich und nicht mehr zeitgem{\"a}ß. Die Bedienung der meisten Beamer ist veraltet und kaum digitalisiert. PRO+SOUND l{\"o}st diese Schwachstellen in einem kompakten Produkt und macht das streamen von Inhalten m{\"u}helos und kabellos. Das geringe Gewicht und der kompakte Formfaktor macht die Mitnahme f{\"u}r unterwegs problemlos m{\"o}glich.}, language = {de} } @incollection{Ulke2024, author = {Ulke, Bernd}, title = {Privates Baurecht und Nachtragsmanagement}, series = {Zahlentafeln f{\"u}r den Baubetrieb}, booktitle = {Zahlentafeln f{\"u}r den Baubetrieb}, editor = {Krause, Thomas and Ulke, Bernd and Ferger, Martin}, publisher = {Springer Vieweg}, address = {Wiesbaden}, isbn = {978-3-658-41329-3 (Print)}, doi = {10.1007/978-3-658-41330-9_3}, pages = {149 -- 216}, year = {2024}, abstract = {Kein Bauvorhaben sollte realisiert werden, ohne dass es auf einer vertraglichen Grundlage zwischen Auftraggeber und Auftragnehmer fußt. Diese vertragliche Grundlage zu kennen ist essenziell, um dementsprechend handeln zu k{\"o}nnen. Denn nur wer seine eigenen Rechte und auch Pflichten kennt, kann sich auf diese berufen.}, language = {de} } @unpublished{GriegerMehrkanoonBialonski2024, author = {Grieger, Niklas and Mehrkanoon, Siamak and Bialonski, Stephan}, title = {Preprint: Data-efficient sleep staging with synthetic time series pretraining}, series = {arXiv}, journal = {arXiv}, pages = {10 Seiten}, year = {2024}, abstract = {Analyzing electroencephalographic (EEG) time series can be challenging, especially with deep neural networks, due to the large variability among human subjects and often small datasets. To address these challenges, various strategies, such as self-supervised learning, have been suggested, but they typically rely on extensive empirical datasets. Inspired by recent advances in computer vision, we propose a pretraining task termed "frequency pretraining" to pretrain a neural network for sleep staging by predicting the frequency content of randomly generated synthetic time series. Our experiments demonstrate that our method surpasses fully supervised learning in scenarios with limited data and few subjects, and matches its performance in regimes with many subjects. Furthermore, our results underline the relevance of frequency information for sleep stage scoring, while also demonstrating that deep neural networks utilize information beyond frequencies to enhance sleep staging performance, which is consistent with previous research. We anticipate that our approach will be advantageous across a broad spectrum of applications where EEG data is limited or derived from a small number of subjects, including the domain of brain-computer interfaces.}, language = {en} } @misc{Huening2024, author = {H{\"u}ning, Felix}, title = {Positionssensorvorrichtung}, year = {2024}, abstract = {Die Erfindung betrifft eine Positionssensorvorrichtung zur Bestimmung einer Absolutposition eines beweglichen ersten Teils relativ zu einem ortsfesten zweiten Teil mit einem mit dem beweglichen ersten Teil gekoppelter Codek{\"o}rper, der dazu eingerichtet ist, eine Codespur mit einer Mehrzahl von in Spurrichtung aufeinanderfolgenden Codeelementen zu enthalten zur Bildung eines Codewortes, mit einer magnetischen Detektionseinrichtung zur Detektion der Codespur, wobei die Detektionseinrichtung zum einen an dem Codek{\"o}rper befestigte und entlang der Spurrichtung in einem solchen Abstand gegenpolig zueinander angeordnete Permanentmagneten aufweist, dass der Abstand mit einer vorgegebenen L{\"a}nge der jeweiligen Codeelemente {\"u}bereinstimmt, und zum anderen eine Anzahl von ortsfest und quer zu dem Codek{\"o}rper versetzt angeordnete Wiegandsensoren aufweist, wobei der Abstand des Wiegandsensors zu einer Erstreckungsebene der Permanentmagneten derart gew{\"a}hlt ist, dass bei {\"U}berdeckung des Wiegandsensors durch den Permanentmagneten ein Wiegandpuls in dem Wiegandsensor induziert wird.}, language = {de} } @masterthesis{Jung2024, type = {Bachelor Thesis}, author = {Jung, Maximilian}, title = {Out of the Box : Cardistry Dokumentarfilm}, publisher = {FH Aachen}, address = {Aachen}, pages = {75 Seiten}, year = {2024}, abstract = {"Out of the Box" ist ein Dokumentarfilm und bietet einen Einblick in die Welt des "Cardistry". Der Schwerpunkt liegt auf dieser Nischenkunst und -kultur der visuell ansprechenden Kartenmanipulation. Der Film beleuchtet den Beginn, die Entwicklung und die lebendige Gemeinschaft hinter dieser einzigartigen Kunstform. Dar{\"u}ber hinaus werden Abgrenzungen, Urspr{\"u}nge und {\"A}hnlichkeiten zur Kartenmagie erforscht.}, language = {de} } @article{HoffstadtNikolauszKrafftetal.2024, author = {Hoffstadt, Kevin and Nikolausz, Marcell and Krafft, Simone and Bonatelli, Maria and Kumar, Vivekanantha and Harms, Hauke and Kuperjans, Isabel}, title = {Optimization of the ex situ biomethanation of hydrogen and carbon dioxide in a novel meandering plug flow reactor: start-up phase and flexible operation}, series = {Bioengineering}, volume = {11}, journal = {Bioengineering}, number = {2}, publisher = {MDPI}, address = {Basel}, issn = {2306-5354}, doi = {10.3390/bioengineering11020165}, pages = {18 Seiten}, year = {2024}, language = {en} } @masterthesis{Pilath2024, type = {Bachelor Thesis}, author = {Pilath, Dominik}, title = {Optimierte Schnittmuster in Kleinunternehmen : Konzept zur Branchenverschiebung in der Modeindustrie}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {55 Seiten}, year = {2024}, abstract = {Die vorliegende Arbeit widmet sich Herangehensweisen, die dem Fast-Fashion-Ph{\"a}nomen - einem Trend in der Bekleidungsindustrie, der sich durch immer schnellere Produktion, k{\"u}rzere Produktlebenszyklen und kosteng{\"u}nstigere Massenproduktion auszeichnet, entgegenstehen. Die alternative Herangehensweise orientiert sich am Berufsbild des Maßschneiders. Ein Lasercutter, der f{\"u}r den Arbeitsalltag von Kleinunternehmen in der Kleidungsbranche optimiert ist, {\"u}bernimmt das Ausschneiden von Schnittmustern auf Stoffen. Dies erm{\"o}glicht Unternehmen in der digitalisierten Welt konkurrenzf{\"a}hig zu bleiben, ohne große Aufr{\"u}stungsarbeiten.}, language = {de} } @masterthesis{Spindler2024, type = {Bachelor Thesis}, author = {Spindler, David}, title = {OneHold : mietbares modulares Produktsystem f{\"u}r Haushaltsger{\"a}te bei tempor{\"a}rem Wohnen}, publisher = {FH Aachen}, address = {Aachen}, school = {Fachhochschule Aachen}, pages = {129 Seiten}, year = {2024}, abstract = {OneHold ist ein kompaktes Produktsystem, welches durch die Nutzung von Modularit{\"a}t Multifunktionalit{\"a}t erreicht, und so Mehrwert bietet, indem es die grundlegenden Aufgaben im Haushalt mit weniger ben{\"o}tigten Komponenten bew{\"a}ltigt. So werden Teile, Raum, Kosten und Ressourcen gespart. OneHold kann in Form von mehreren Modulen flexibel gemietet werden, um die Bed{\"u}rfnisse tempor{\"a}r wohnender Menschen passgenau zu bedienen. Die Power-Einheit mit Elektromotor und Akku wird mit jeweils einem Modul f{\"u}r die zu bew{\"a}ltigende Haushaltsaufgabe verbunden. In dieser Bachelorarbeit wurden neben der Power-Einheit vier Module gestaltet: Staubsauger, Mixer, P{\"u}rierstab, und Akkuschrauber. Das Design von OneHold zelebriert die Achse mit rotierender Funktion als formgebenden Kern des Produkts. Die dynamisch gestreckte zylindrische Form verleiht jeder Modulkonfiguration des Produktsystems ein einheitliches Aussehen.}, language = {de} } @article{PieronekKleefeld2024, author = {Pieronek, Lukas and Kleefeld, Andreas}, title = {On trajectories of complex-valued interior transmission eigenvalues}, series = {Inverse problems and imaging : IPI}, volume = {18}, journal = {Inverse problems and imaging : IPI}, number = {2}, publisher = {AIMS}, address = {Springfield, Mo}, issn = {1930-8337 (Print)}, doi = {10.3934/ipi.2023041}, pages = {480 -- 516}, year = {2024}, abstract = {This paper investigates the interior transmission problem for homogeneous media via eigenvalue trajectories parameterized by the magnitude of the refractive index. In the case that the scatterer is the unit disk, we prove that there is a one-to-one correspondence between complex-valued interior transmission eigenvalue trajectories and Dirichlet eigenvalues of the Laplacian which turn out to be exactly the trajectorial limit points as the refractive index tends to infinity. For general simply-connected scatterers in two or three dimensions, a corresponding relation is still open, but further theoretical results and numerical studies indicate a similar connection.}, language = {en} } @article{HaegerJolmesOyenetal.2024, author = {Haeger, Gerrit and Jolmes, Tristan and Oyen, Sven and Jaeger, Karl-Erich and Bongaerts, Johannes and Sch{\"o}rken, Ulrich and Siegert, Petra}, title = {Novel recombinant aminoacylase from Paraburkholderia monticola capable of N-acyl-amino acid synthesis}, series = {Applied Microbiology and Biotechnology}, journal = {Applied Microbiology and Biotechnology}, number = {108}, publisher = {Springer}, address = {Berlin}, issn = {1432-0614}, doi = {10.1007/s00253-023-12868-8}, pages = {14 Seiten}, year = {2024}, abstract = {N-Acyl-amino acids can act as mild biobased surfactants, which are used, e.g., in baby shampoos. However, their chemical synthesis needs acyl chlorides and does not meet sustainability criteria. Thus, the identification of biocatalysts to develop greener synthesis routes is desirable. We describe a novel aminoacylase from Paraburkholderia monticola DSM 100849 (PmAcy) which was identified, cloned, and evaluated for its N-acyl-amino acid synthesis potential. Soluble protein was obtained by expression in lactose autoinduction medium and co-expression of molecular chaperones GroEL/S. Strep-tag affinity purification enriched the enzyme 16-fold and yielded 15 mg pure enzyme from 100 mL of culture. Biochemical characterization revealed that PmAcy possesses beneficial traits for industrial application like high temperature and pH-stability. A heat activation of PmAcy was observed upon incubation at temperatures up to 80 °C. Hydrolytic activity of PmAcy was detected with several N-acyl-amino acids as substrates and exhibited the highest conversion rate of 773 U/mg with N-lauroyl-L-alanine at 75 °C. The enzyme preferred long-chain acyl-amino-acids and displayed hardly any activity with acetyl-amino acids. PmAcy was also capable of N-acyl-amino acid synthesis with good conversion rates. The best synthesis results were obtained with the cationic L-amino acids L-arginine and L-lysine as well as with L-leucine and L-phenylalanine. Exemplarily, L-phenylalanine was acylated with fatty acids of chain lengths from C8 to C18 with conversion rates of up to 75\%. N-lauroyl-L-phenylalanine was purified by precipitation, and the structure of the reaction product was verified by LC-MS and NMR.}, language = {en} } @article{GollandSchroeer2024, author = {Golland, Alexander and Schr{\"o}er, Jan-Erik}, title = {No risk, no fun? Ber{\"u}cksichtigung datenschutzrechtlicher Risiken im Vergabeverfahren}, series = {DSB Datenschutz-Berater}, journal = {DSB Datenschutz-Berater}, number = {5}, publisher = {DFV Mediengruppe}, address = {Frankfurt a.M.}, isbn = {0170-7256}, issn = {No risk, no fun? Ber{\"u}cksichtigung datenschutzrechtlicher Risiken im Vergabeverfahren}, pages = {114 -- 117}, year = {2024}, language = {de} } @article{OehlenschlaegerVolkmarStiefelmaieretal.2024, author = {Oehlenschl{\"a}ger, Katharina and Volkmar, Marianne and Stiefelmaier, Judith and Langsdorf, Alexander and Holtmann, Dirk and Tippk{\"o}tter, Nils and Ulber, Roland}, title = {New insights into the influence of pre-culture on robust solvent production of C. acetobutylicum}, series = {Applied Microbiology and Biotechnology}, volume = {108}, journal = {Applied Microbiology and Biotechnology}, publisher = {Springer}, address = {Berlin, Heidelberg}, issn = {1432-0614}, doi = {10.1007/s00253-023-12981-8}, pages = {10 Seiten}, year = {2024}, abstract = {Clostridia are known for their solvent production, especially the production of butanol. Concerning the projected depletion of fossil fuels, this is of great interest. The cultivation of clostridia is known to be challenging, and it is difficult to achieve reproducible results and robust processes. However, existing publications usually concentrate on the cultivation conditions of the main culture. In this paper, the influence of cryo-conservation and pre-culture on growth and solvent production in the resulting main cultivation are examined. A protocol was developed that leads to reproducible cultivations of Clostridium acetobutylicum. Detailed investigation of the cell conservation in cryo-cultures ensured reliable cell growth in the pre-culture. Moreover, a reason for the acid crash in the main culture was found, based on the cultivation conditions of the pre-culture. The critical parameter to avoid the acid crash and accomplish the shift to the solventogenesis of clostridia is the metabolic phase in which the cells of the pre-culture were at the time of inoculation of the main culture; this depends on the cultivation time of the pre-culture. Using cells from the exponential growth phase to inoculate the main culture leads to an acid crash. To achieve the solventogenic phase with butanol production, the inoculum should consist of older cells which are in the stationary growth phase. Considering these parameters, which affect the entire cultivation process, reproducible results and reliable solvent production are ensured.}, language = {en} } @article{SchoenrockMuckeltHastermannetal.2024, author = {Schoenrock, Britt and Muckelt, Paul E. and Hastermann, Maria and Albracht, Kirsten and MacGregor, Robert and Martin, David and Gunga, Hans-Christian and Salanova, Michele and Stokes, Maria J. and Warner, Martin B. and Blottner, Dieter}, title = {Muscle stiffness indicating mission crew health in space}, series = {Scientific Reports}, volume = {14}, journal = {Scientific Reports}, number = {Article number: 4196}, publisher = {Springer Nature}, address = {London}, issn = {2045-2322}, doi = {10.1038/s41598-024-54759-6}, pages = {13 Seiten}, year = {2024}, abstract = {Muscle function is compromised by gravitational unloading in space affecting overall musculoskeletal health. Astronauts perform daily exercise programmes to mitigate these effects but knowing which muscles to target would optimise effectiveness. Accurate inflight assessment to inform exercise programmes is critical due to lack of technologies suitable for spaceflight. Changes in mechanical properties indicate muscle health status and can be measured rapidly and non-invasively using novel technology. A hand-held MyotonPRO device enabled monitoring of muscle health for the first time in spaceflight (> 180 days). Greater/maintained stiffness indicated countermeasures were effective. Tissue stiffness was preserved in the majority of muscles (neck, shoulder, back, thigh) but Tibialis Anterior (foot lever muscle) stiffness decreased inflight vs. preflight (p < 0.0001; mean difference 149 N/m) in all 12 crewmembers. The calf muscles showed opposing effects, Gastrocnemius increasing in stiffness Soleus decreasing. Selective stiffness decrements indicate lack of preservation despite daily inflight countermeasures. This calls for more targeted exercises for lower leg muscles with vital roles as ankle joint stabilizers and in gait. Muscle stiffness is a digital biomarker for risk monitoring during future planetary explorations (Moon, Mars), for healthcare management in challenging environments or clinical disorders in people on Earth, to enable effective tailored exercise programmes.}, language = {en} } @inproceedings{SimsekKrauseEngelmann2024, author = {Simsek, Beril and Krause, Hans-Joachim and Engelmann, Ulrich M.}, title = {Magnetic biosensing with magnetic nanoparticles: Simulative approach to predict signal intensity in frequency mixing magnetic detection}, series = {YRA MedTech Symposium (2024)}, booktitle = {YRA MedTech Symposium (2024)}, editor = {Digel, Ilya and Staat, Manfred and Trzewik, J{\"u}rgen and Sielemann, Stefanie and Erni, Daniel and Zylka, Waldemar}, publisher = {Universit{\"a}t Duisburg-Essen}, address = {Duisburg}, organization = {MedTech Symposium}, isbn = {978-3-940402-65-3}, doi = {10.17185/duepublico/81475}, pages = {27 -- 28}, year = {2024}, abstract = {Magnetic nanoparticles (MNP) are investigated with great interest for biomedical applications in diagnostics (e.g. imaging: magnetic particle imaging (MPI)), therapeutics (e.g. hyperthermia: magnetic fluid hyperthermia (MFH)) and multi-purpose biosensing (e.g. magnetic immunoassays (MIA)). What all of these applications have in common is that they are based on the unique magnetic relaxation mechanisms of MNP in an alternating magnetic field (AMF). While MFH and MPI are currently the most prominent examples of biomedical applications, here we present results on the relatively new biosensing application of frequency mixing magnetic detection (FMMD) from a simulation perspective. In general, we ask how the key parameters of MNP (core size and magnetic anisotropy) affect the FMMD signal: by varying the core size, we investigate the effect of the magnetic volume per MNP; and by changing the effective magnetic anisotropy, we study the MNPs' flexibility to leave its preferred magnetization direction. From this, we predict the most effective combination of MNP core size and magnetic anisotropy for maximum signal generation.}, language = {en} } @inproceedings{BeckerBragard2024, author = {Becker, Tim and Bragard, Michael}, title = {Low-Voltage DC Training Lab for Electric Drives - Optimizing the Balancing Act Between High Student Throughput and Individual Learning Speed}, series = {2024 IEEE Global Engineering Education Conference (EDUCON)}, booktitle = {2024 IEEE Global Engineering Education Conference (EDUCON)}, publisher = {IEEE}, address = {New York, NY}, issn = {2165-9559}, doi = {10.1109/EDUCON60312.2024.10578902}, pages = {8 Seiten}, year = {2024}, abstract = {After a brief introduction of conventional laboratory structures, this work focuses on an innovative and universal approach for a setup of a training laboratory for electric machines and drive systems. The novel approach employs a central 48 V DC bus, which forms the backbone of the structure. Several sets of DC machine, asynchronous machine and synchronous machine are connected to this bus. The advantages of the novel system structure are manifold, both from a didactic and a technical point of view: Student groups can work on their own performance level in a highly parallelized and at the same time individualized way. Additional training setups (similar or different) can easily be added. Only the total power dissipation has to be provided, i.e. the DC bus balances the power flow between the student groups. Comparative results of course evaluations of several cohorts of students are shown.}, language = {en} }