Steigerwald, Julian; Durst, Carolin (2025)
Stiehl, Annika; Weeger, Nicolas; Uhl, Christian (2025)
In: Aguiar, A.P., Rocha Malonek, P., Pinto, V.H., Fontes, F.A.C.C., Chertovskih, R. (eds) CONTROLO 2024. CONTROLO 2024. Lecture Notes in Electrical Engineering, vol 1325. Springer 2025.
DOI: 10.1007/978-3-031-81724-3_23
Dynamical Component Analysis (DyCA) and Dynamic Mode Decomposition (DMD), both data-driven dimension reduction methods, are introduced. After application to multivariate simulated signals the techniques of mode selection and the resulting amplitudes are compared with respect to noise robustness and sampling periods. The results indicate that DyCA is a useful alternative to DMD and outperforms DMD under certain conditions. These conditions are based on the underlying dynamics in the terms of differential equations and on the noise ratios of the signals.
Winkler, Jakob; Uhl, Christian; Geißelsöder, Stefan; Erdbrügger, Tim; Wolters, Carsten (2025)
Winkler, Jakob; Uhl, Christian; Geißelsöder, Stefan; Erdbrügger, Tim...
In: Aguiar, A.P., Rocha Malonek, P., Pinto, V.H., Fontes, F.A.C.C., Chertovskih, R. (eds) CONTROLO 2024. CONTROLO 2024. Lecture Notes in Electrical Engineering, vol 1325. Springer 2025.
DOI: 10.1007/978-3-031-81724-3_24
This paper discusses the challenges and methods for source reconstruction of evoked potentials using deep learning in the context of electroencephalography (EEG). We propose the use of deep learning to address known challenges and improve traditional approaches. We explain the creation of a suitable dataset for solving the inverse problem, including the simulation of neural activity and the use of lead field matrices for the forward solution. Furthermore, we undertake a comparative analysis of some initial deep learning models with similar classical methods.
Schlarb, Markus (2025)
In: Aguiar, A.P., Rocha Malonek, P., Pinto, V.H., Fontes, F.A.C.C., Chertovskih, R. (eds) CONTROLO 2024. CONTROLO 2024. Lecture Notes in Electrical Engineering, vol 1325. Springer, Cham 2025.
DOI: 10.1007/978-3-031-81724-3_16
The manifold of essential matrices is equipped with a one-parameter family of (pseudo-)Riemannian metrics. For the whole family, explicit formulas for geodesics are derived. Moreover, specific curves, so-called quasi-geodesics, are studied and a closed form expression for a quasi-geodesic connecting two given essential matrices is obtained.
Flammer, M (2025)
In: Aguiar, A.P., Rocha Malonek, P., Pinto, V.H., Fontes, F.A.C.C., Chertovskih, R. (eds) CONTROLO 2024. CONTROLO 2024. Lecture Notes in Electrical Engineering, vol 1325. Springer, Cham 2025.
DOI: 10.1007/978-3-031-81724- 3_28
In this paper, we show an application of spatiotemporal persistence landscapes to real world time series. Spatiotemporal persistence landscapes are a recent extension of persistence landscapes to time series that capture features of the data that are persistent with respect to time and space. We perform our analysis on EEG data to detect absence epileptic seizures. Further, we compare two dimension reduction techniques (DyCA and PCA) with no dimension reduction and show that the combination of DyCA and persistent landscapes yields the best results.
Durst, Carolin (2025)
, ISBN 978-3-658-45378-7.
Mit diesem Buch hältst Du den Kompass für das moderne B2B Marketing im digitalen Zeitalter in der Hand. Von der Marketingstrategie über Kanäle und Tools findest Du alles, was Du als CMO oder Marketingexperte in einem mittelständischen B2B-Unternehmen benötigst. Wir geben Dir Werkzeuge an die Hand, Silos aufzubrechen und abteilungsübergreifend eine wirksame Kommunikation aufzusetzen, die mehr leistet als nur kurzfristig Leads zu produzieren. Unser Playbook ist dabei hands-on und voller Best Practices, Checklisten und Erfahrungsberichten.
Das B2B Digital Marketing Playbook ist nichts, was Du von vorne bis hinten durchackern musst. Benutzt es wie ein Handbuch: Immer dann, wenn eine Frage oder ein Thema im Job auftaucht – nachschlagen, lesen, umsetzen.
Ein Buch aus der Praxis für die Praxis – ein Buch für B2B-Marketers, die Ihre Marketing-Performance für alle sichtbar steigern wollen. Diese zweite Auflage wurde vollständig aktualisiert und erweitert.
Pöpel, Cornelius; Edler, Bernd (2025)
Proceedings of DAS|DAGA 2025 2025, 1256 - 1259.
Since October 2017, 3D audio recordings have been
made every month at the Vogelinsel nature reserve on Lake Altmühlsee,
Germany. The recordings start one hour before and end one hour after
sunset. The microphone, position and recording device are identical for
all recordings. Each recording is analysed by hand using the same
analysis method, whereby the content of the recordings is annotated. The
weather data for the recording days is collected. The recording and
weather conditions at the recording location are documented
photographically. This data set is highly unique due to the 3D recording
technique and the long duration of the acoustic observation of nature
at one spot. In addition to collecting further data, the project aims to
compare the recordings with known algorithmic bioacoustic analysis
methods in order to better understand the changes in nature at the
recording site (possibly caused by climate/biodiversity change), to
develop further algorithmic methods of soundscape analysis and to use
the recordings and additional data for nature education,
medical-therapeutic and wellness contexts. The article describes the
data collection in detail, outlines the comparative results achieved so
far, presents our additional analysis methods and gives an outlook on
the future of the project.
Singer, Michael; Pöpel, Cornelius; Müller, Benjamin (2025)
Proceedings of DAS|DAGA 2025 2025, 1580 - 1583.
The possibilities and limitations of auralizing an acoustic
laboratory with the “WWISE Spatial Audio” are discussed
by 3d modeling and auralizing a door test laboratory in VR,
designed for sound reduction index measurements. The
simulated results are compared to real measurements with
the acoustic parameters: Reverberation Time [T30] and
Sound Reduction Index [R], with three binauralization
methods compared and further optimizations conducted
with Dolby Atmos for Headphones. The results showed a
deviation and partly a correlation within the “Just
Noticeable Differences [JND]” for T30 values and a precise
reproduction of the sound reduction index within WWISE
was possible for test components with the lowest real R
values. The frequency dependent Rw values were subtracted
from the audio file using bandpass filters - before using
“WWISE” for sound playback in VR. The results of this
work can be a seen as a technical analysis and fundament
for future research regarding realtime auralization
capabilities of audio middlewares.
Pöpel, Cornelius; Schnurpfeil, Roland (2025)
Proceedings of DAS|DAGA 2025 2025, 198 - 201.
The positive effects that bioacoustic environments
in nature can have on people raise the question of the extent to which
bioacoustic recordings can have positive effects as well when played
back via VR in the context of a hospital. This paper presents a study in
which the effect of a 3D soundscape recording including a 360° still
image on geriatric patients in a clinic was investigated. 28 test
subjects each spent 15 minutes in a 360° VR room, surrounded by six
projection screens and 14 loudspeakers. The study was conducted in a
geriatric rehabilitation ward. The recording location was chosen in a
nearby recreation and nature reserve. The subjects' state of mind was
measured at four points in time using a standardised psychological
measurement procedure. During the 15-minute stay in the virtual nature,
biosignals of various vital parameters were recorded. In addition, the
room was opened to patients and staff at defined times and their use was
recorded. The staff were asked about their experiences. The results
show that playback increased the well-being of most participants. The
therapeutic possibilities of using 3D bioacoustic recordings are
discussed and future research and application scenarios for the system
are presented.
Vogel, Pascal; Pöpel, Cornelius (2025)
Proceedings of DAS|DAGA 2025 2025, 404 - 407.
The interactive soundscape education project, Klangwelt-Entdecker, aims to raise awareness of the soundscape in a nature reserve. By scanning QR codes with their smartphones at six listening stations on a circular route along the bird island on Lake Altmühlsee, Germany, visitors can experience the diversity of the soundscape of the site throughout the year and obtain information about the bioacoustics of the local nature and birdlife via the project website. The initiative places a special focus on the effects of climate change on the soundscape and aims to convey a greater understanding of the acoustic facets of nature. Sounds are used from a database that has been fed with monthly 3D sound recordings of the bird island for more than 7 years. The impact of the project with regard to the soundscape educational objectives will be analysed by means of a study among participants of the circular walk. The results of the study will be presented and discussed in the context of existing similar projects. Based on this, well-founded demands are made on nature education and, in particular, bioacoustics and soundscape education.
Pöpel, Cornelius (2025)
Proceedings of DAS|DAGA 2025 2025, 187 - 190.
The development of digital musical instruments is
often pursued from a substance-ontological functional and physical
perspective. However, many musicians talk less about music from a
functional and physical perspective but more about the experienced
phenomena they encounter when making music. In this article,
instrumental playing and musical interaction will be considered from two
perspectives: the broadly used substance-ontological view and the
process-ontological approach as drafted by Alfred North Whitehead. The
instrumental focus here is on digital and traditional bowed stringed
instruments and varying descriptions of the interaction on the
instrument. Related works and these descriptions are looked at from the
two perspectives mentioned. It is shown why it often comes to a
bifurcation of nature into primary and secondary qualities of musical
interaction during the interface design process. Furthermore, it is
shown that musicians' requirements for digital musical instruments are
sometimes unfavourably excluded. These problems will be exemplified and
suggestions for a process-ontological perspective on the design of
musical interaction will be presented. Also an example of a highly
market relevant design principle of a musical sound synthesis system
fitting to the process-ontological understanding of musical interaction
is presented and discussed.
Müller, Michael; Milman, Jana; Wartzack, Thomas (2025)
Innovative Verwaltung 2025 (3), 16-19.
DOI: 10.1007/s35114-025-2170-4
Vendittoli, Valentina; Polini, Wilma; Walter, Michael S. J. (2025)
Progress in Additive Manufacturing 2025, ahead-of-print.
DOI: 10.1007/s40964-025-01013-8
Industrial parts often demand high dimensional accuracy and mechanical strength. This study introduces a method using Response Surface Methodology and composite desirability to simultaneously optimize these performances in components manufactured through additive processes. The approach was validated on Polylactic Acid parts fabricated through Fused Filament Fabrication. Optimized process parameters included a print speed of 80 mm/s, a layer height of 0.2 mm, a fan speed of 50%, and an extrusion temperature of 210 °C, yielding tensile strength of 53.27 MPa and dimensional deviations under 5%. Experimental validations showed less than a 5% deviation between predictions and outcomes. The findings provide valuable insights into improving the quality and performance of printed components in various industrial applications, such as gears, highlighting the significance of multi-response optimisation in 3D printing processes. This study ultimately contributes to more efficient and cost-effective manufacturing processes.
Wissler, J.; Häfner, Philipp; Reimann, Hans-Achim (2025)
Biophysical Journal 2024 (123), 3 | 419a.
DOI: 10.1016/j.bpj.2023.11.2551
Jensen, Thore ; Lang, Anton ; Händel, Marion (2025)
e-learning journal. Kategorie: Künstliche Intelligenz – Schwerpunkt: KI-basierte Prüfungsbewertung .
Wagner, Jan; Dudziak, Mateusz; Falkenhagen, Jana; Rockel, Daniel; Reimann, Hans-Achim; Schartel, Bernhard (2025)
Wagner, Jan; Dudziak, Mateusz; Falkenhagen, Jana; Rockel, Daniel; Reimann, Hans-Achim...
Polymer Degradation and Stability 2025 (234), 111242.
DOI: 10.1016/j.polymdegradstab.2025.111242
Jarosch, Dieter; Warren, John James; Kapischke, Jörg (2025)
Heliyon eCollection 2025 Jan 30.
DOI: 10.1016/j.heliyon.2025.e42075
This study explores the unique operating behavior of an alkaline water electrolysis cell equipped with an ion-solvating membrane, operated with a diluted alkaline electrolyte, specifically 1-M potassium hydroxide (1M KOH), in anode feed mode. Our investigations reveal several key insights.
Biller, Simon ; Groß-Mlynek, Lena; Bastian, Jasmin; Händel, Marion (2025)
12. Tagung der Gesellschaft für Empirische Bildungsforschung (GEBF) .
Händel, Marion; Nett, Ulrike; Bryce, Donna; Dresel, Markus (2025)
12. Tagung der Gesellschaft für Empirische Bildungsforschung (GEBF) .
Durst, Carolin; Lauhoff, Caroline (2025)
, https://archives.marketing-trends-congress.com/2025/pages/PDF/159.pdf.
This study examines the effectiveness of digital
nudging in enhancing email marketing strategies for non-profit organizations
(NPOs) involved in emergency and disaster relief (EDR). Specifically, it aims
to explore the potential of digital nudges to convert one-time and occasional donors into regular contributors. By investigating
whether, and to what extent, digital nudging can facilitate this conversion,
the research provides insights into optimizing donor engagement. Based on
literature, four digital nudges were developed and tested in a quantitative
field experiment conducted in partnership with the German emergency and
disaster relief organization, Caritas international. The findings reveal that
the phantom decoy and identity coherence nudges are particularly effective in
increasing click-through rates on recurring donation buttons in emails from
NPOs focused on EDR, highlighting their potential as tools for improving donor
retention.
Hochschule Ansbach
Residenzstr. 8
91522 Ansbach