TY  - THES
A1  - Bung, Daniel Bernhard
T1  - Imaging techniques for investigation of free-surface flows in hydraulic laboratories
N2  - This thesis aims at the presentation and discussion of well-accepted and new
imaging techniques applied to different types of flow in common hydraulic
engineering environments. All studies are conducted in laboratory conditions and
focus on flow depth and velocity measurements. Investigated flows cover a wide
range of complexity, e.g. propagation of waves, dam-break flows, slightly and fully
aerated spillway flows as well as highly turbulent hydraulic jumps.
Newimagingmethods are compared to different types of sensorswhich are frequently
employed in contemporary laboratory studies. This classical instrumentation as well
as the general concept of hydraulic modeling is introduced to give an overview on
experimental methods.
Flow depths are commonly measured by means of ultrasonic sensors, also known as
acoustic displacement sensors. These sensors may provide accurate data with high
sample rates in case of simple flow conditions, e.g. low-turbulent clear water flows.
However, with increasing turbulence, higher uncertainty must be considered.
Moreover, ultrasonic sensors can provide point data only, while the relatively large
acoustic beam footprint may lead to another source of uncertainty in case of
relatively short, highly turbulent surface fluctuations (ripples) or free-surface
air-water flows. Analysis of turbulent length and time scales of surface fluctuations
from point measurements is also difficult. Imaging techniques with different
dimensionality, however, may close this gap. It is shown in this thesis that edge
detection methods (known from computer vision) may be used for two-dimensional
free-surface extraction (i.e. from images taken through transparant sidewalls in
laboratory flumes). Another opportunity in hydraulic laboratory studies comes with
the application of stereo vision. Low-cost RGB-D sensors can be used to gather
instantaneous, three-dimensional free-surface elevations, even in flows with very
high complexity (e.g. aerated hydraulic jumps). It will be shown that the uncertainty
of these methods is of similar order as for classical instruments.
Particle Image Velocimetry (PIV) is a well-accepted and widespread imaging
technique for velocity determination in laboratory conditions. In combination with
high-speed cameras, PIV can give time-resolved velocity fields in 2D/3D or even as
volumetric flow fields. PIV is based on a cross-correlation technique applied to small
subimages of seeded flows. The minimum size of these subimages defines the
maximum spatial resolution of resulting velocity fields. A derivative of PIV for
aerated flows is also available, i.e. the so-called Bubble Image Velocimetry (BIV). This
thesis emphasizes the capacities and limitations of both methods, using relatively
simple setups with halogen and LED illuminations. It will be demonstrated that
PIV/BIV images may also be processed by means of Optical Flow (OF) techniques.
OF is another method originating from the computer vision discipline, based on the
assumption of image brightness conservation within a sequence of images. The
Horn-Schunck approach, which has been first employed to hydraulic engineering
problems in the studies presented herein, yields dense velocity fields, i.e. pixelwise
velocity data. As discussed hereinafter, the accuracy of OF competes well with PIV
for clear-water flows and even improves results (compared to BIV) for aerated flow
conditions. In order to independently benchmark the OF approach, synthetic images
with defined turbulence intensitiy are used.
Computer vision offers new opportunities that may help to improve the
understanding of fluid mechanics and fluid-structure interactions in laboratory
investigations. In prototype environments, it can be employed for obstacle detection
(e.g. identification of potential fish migration corridors) and recognition (e.g. fish
species for monitoring in a fishway) or surface reconstruction (e.g. inspection of
hydraulic structures). It can thus be expected that applications to hydraulic
engineering problems will develop rapidly in near future. Current methods have not
been developed for fluids in motion. Systematic future developments are needed to
improve the results in such difficult conditions.
Y1  - 2023
U6  - https://doi.org/10.25926/BUW/0-172
ER  - 
TY  - JOUR
A1  - Mues genannt Koers, Lucas
A1  - McNeil, S. W.
A1  - Radchenko, V.
A1  - Paulßen, Elisabeth
A1  - Hoehr, Cornelia
T1  - Production of Co-58m in a siphon-style liquid target on a medical cyclotron
N2  - We present the production of 58mCo on a small, 13 MeV medical cyclotron utilizing a siphon style liquid target system. Different concentrated iron(III)-nitrate solutions of natural isotopic distribution were irradiated at varying initial pressures and subsequently separated by solid phase extraction chromatography. The radio cobalt (58m/gCo and 56Co) was successfully produced with saturation activities of (0.35 ± 0.03) MBq μA−1 for 58mCo with a separation recovery of (75 ± 2) % of cobalt after one separation step utilizing LN-resin.
Y1  - 2023
U6  - https://doi.org/10.1016/j.apradiso.2023.110734
SN  - 0969-8043
VL  - 195
IS  - Art. 110734
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Mues genannt Koers, Lucas
A1  - Prevost, David
A1  - Paulßen, Elisabeth
A1  - Hoehr, Cornelia
T1  - Density reduction effects on the production of [11C]CO2 in Nb-body targets on a medical cyclotron
N2  - Medical isotope production of 11C is commonly performed in gaseous targets. The power deposition of the proton beam during the irradiation decreases the target density due to thermodynamic mixing and can cause an increase of penetration depth and divergence of the proton beam. In order to investigate the difference how the target-body length influences the operation conditions and the production yield, a 12 cm and a 22 cm Nb-target body containing N2/O2 gas were irradiated using a 13 MeV proton cyclotron. It was found that the density reduction has a large influence on the pressure rise during irradiation and the achievable radioactive yield. The saturation activity of [11C]CO2 for the long target (0.083 Ci/μA) is about 10% higher than in the short target geometry (0.075 Ci/μA).
Y1  - 2023
U6  - https://doi.org/10.1016/j.apradiso.2023.110911
VL  - 199
IS  - Art. 110911
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Droop, Philipp
A1  - Chen, Shaohuang
A1  - Radford, Melissa J.
A1  - Paulßen, Elisabeth
A1  - Gates, Byron D.
A1  - Reilly, Raymond M.
A1  - Radchenko, Valery
A1  - Hoehr, Cornelia
T1  - Synthesis of 197m/gHg labelled gold nanoparticles for targeted radionuclide therapy
JF  - Radiochimica Acta
N2  - Meitner-Auger-electron emitters have a promising potential for targeted radionuclide therapy of cancer because of their short range and the high linear energy transfer of Meitner-Auger-electrons (MAE). One promising MAE candidate is 197m/gHg with its half-life of 23.8 h and 64.1 h, respectively, and high MAE yield. Gold nanoparticles (AuNPs) that are labelled with 197m/gHg could be a helpful tool for radiation treatment of glioblastoma multiforme when infused into the surgical cavity after resection to prevent recurrence. To produce such AuNPs, 197m/gHg was embedded into pristine AuNPs. Two different syntheses were tested starting from irradiated gold containing trace amounts of 197m/gHg. When sodium citrate was used as reducing agent, no 197m/gHg labelled AuNPs were formed, but with tannic acid, 197m/gHg labeled AuNPs were produced. The method was optimized by neutralizing the pH (pH = 7) of the Au/197m/gHg solution, which led to labelled AuNPs with a size of 12.3 ± 2.0 nm as measured by transmission electron microscopy. The labelled AuNPs had a concentration of 50 μg (gold)/mL with an activity of 151 ± 93 kBq/mL (197gHg, time corrected to the end of bombardment).
KW  - 197m/gHg
KW  - Gold nanoparticle (AuNP)
KW  - Meitner-Auger-electron (MAE)
KW  - Targeted radionuclide therapy (TRT)
Y1  - 2023
U6  - https://doi.org/10.1515/ract-2023-0144
SN  - 2193-3405
VL  - 111
IS  - 10
SP  - 773
EP  - 779
PB  - De Gruyter
CY  - Berlin [u.a.]
ER  - 
TY  - CHAP
A1  - Bung, Daniel Bernhard
A1  - Langohr, Phillip
A1  - Waldenberger, Lisa
ED  - Habersack, Helmut
ED  - Tritthart, Michael
T1  - Influence of cycle number in CFD studies of labyrinth weirs
T2  - Proceedings of the 40th IAHR World Congress (Vienna, 2023)
N2  - The major advantage of labyrinth weirs over linear weirs is hydraulic efficiency. In hydraulic modeling efforts, this strength contrasts with limited pump capacity as well as limited computational power for CFD simulations. For the latter, reducing the number of investigated cycles can significantly reduce necessary computational time. In this study, a labyrinth weir with different cycle numbers was investigated. The simulations were conducted in FLOW-3D HYDRO as a Large Eddy Simulation. With a mean deviation of 1.75 % between simulated discharge coefficients and literature design equations, a reasonable agreement was found. For downstream conditions, overall consistent results were observed as well. However, the orientation of labyrinth weirs with a single cycle should be chosen carefully under consideration of the individual research purpose.
KW  - CFD
KW  - Large Eddy Simulation
KW  - Labyfrinth weirs
Y1  - 2023
SN  - 978-90-833476-1-5
U6  - https://doi.org/10.3850/978-90-833476-1-5_iahr40wc-p0531-cd
SN  - L 2521-7119 (online)
N1  - Vienna, Austria, from August 21 to 25, 2023
PB  - International Association for Hydro-Environment Engineering and Research (IAHR)
CY  - Madrid
ER  - 
TY  - JOUR
A1  - Ulmer, Jessica
A1  - Braun, Sebastian
A1  - Cheng, Chi-Tsun
A1  - Dowey, Steve
A1  - Wollert, Jörg
T1  - A human factors-aware assistance system in manufacturing based on gamification and hardware modularisation
JF  - International Journal of Production Research
N2  - Assistance systems have been widely adopted in the manufacturing sector to facilitate various processes and tasks in production environments. However, existing systems are mostly equipped with rigid functional logic and do not provide individual user experiences or adapt to their capabilities. This work integrates human factors in assistance systems by adjusting the hardware and instruction presented to the workers’ cognitive and physical demands. A modular system architecture is designed accordingly, which allows a flexible component exchange according to the user and the work task. Gamification, the use of game elements in non-gaming contexts, has been further adopted in this work to provide level-based instructions and personalised feedback. The developed framework is validated by applying it to a manual workstation for industrial assembly routines.
KW  - Human factors
KW  - assistance system
KW  - gamification
KW  - adaptive systems
KW  - manufacturing
Y1  - 2023
U6  - https://doi.org/10.1080/00207543.2023.2166140
SN  - 0020-7543 (Print)
SN  - 1366-588X (Online)
PB  - Taylor & Francis
ER  - 
TY  - THES
A1  - Bunar, Moritz
T1  - Land Rover Symbiosis : Seegras erforschen und erleben
N2  - Seegras wird als „Rohstoff der Zukunft“ betitelt, da es helfen könnte, eine Reihe von globalen Problemen zu bekämpfen. Viele der erhofften Innovationen sind heute aber noch hypothetisch. Außerdem ist das Thema in der westlichen Welt trotz der Neigung zum Klimaschutz kaum bekannt. Die Idee von „Land Rover Symbiosis“ ist ein nachhaltiges Tourismuskonzept, das Forschung und Erlebnisreisen miteinander verknüpft. Auf einer 70m Katamaran Superyacht ist Platz für Forschungszwecke auf der einen und Raum für Expeditionsurlaub auf der anderen Seite. So entsteht ein Verhältnis an Bord, bei dem beide Parteien voneinander profitieren: Wissenschaftler:innen erhalten finanzielle Unterstützung und Kund:innen haben ein klimaneutrales Urlaubserlebnis, bei dem sie hautnah die Vorzüge und Potenziale von Seegras kennenlernen.
KW  - Seegras
KW  - Sanfter Tourismus
KW  - Nachhaltigkeit
KW  - Superyacht
KW  - Katamaran
Y1  - 2024
N1  - Für diese Arbeit steht kein Volltext zur Verfügung.
PB  - FH Aachen
CY  - Aachen
ER  - 
TY  - THES
A1  - Ernsing, Johanna
T1  - Kalle : der mitwachsende Kindertisch
N2  - KALLE ist ein mitwachsender Kindertisch, dessen Besonderheit, neben der Höhenverstellung, in der Vergrößerung der Tischplatte liegt. Hierdurch kann KALLE optimal an das Wachstum der Kinder und die sich ändernden Anforderungen angepasst werden.
Es ist ein Möbelstück, das die Entwicklung der Kinder begleitet und fördert. 
Im Gebrauch bezieht sich die Förderung besonders auf die kognitive Entwicklung, die Kreativität und das Sozialverhalten. Darüber hinaus sollen die Kinder mit KALLE aber auch den Umgang mit langlebigen Produkten erlernen, damit sie ein Verständnis für Nachhaltigkeit und ein umweltbewusstes Konsumverhalten entwickeln.
KW  - Mitwachsender Kindertisch
KW  - Kindertisch
KW  - Jugendtisch
KW  - Kreativitätsförderung
KW  - Konsumreduzierung
Y1  - 2024
N1  - Für diese Arbeit steht kein Volltext zur Verfügung.
PB  - FH Aachen
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Timme, Michael
T1  - Kaufvertrag: Das Zusammentreffen von Beschaffenheitsvereinbarung und Gewährleistungsausschluss – ein Spannungsverhältnis
JF  - Monatsschrift für Deutsches Recht
N2  - Wer A sagt, muss zumindest im Kaufrecht nicht immer B sagen: Es kommt nicht selten vor, dass sich in einem Kaufvertrag einerseits ein wirksamer Ausschluss der Gewährleistung des Verkäufers für Sachmängel findet, die Parteien aber andererseits gleichwohl eine Beschaffenheitsvereinbarung für bestimmte Eigenschaften vertraglich festlegen. In diesem Problemfeld führt eine aktuelle Entscheidung des BGH zu weiteren Klärungen für die Praxis (BGH, Urt. v. 10.4.2024 – VIII ZR 161/23, MDR 2024, 706). Der folgende Beitrag setzt sich mit den vielfältigen Aspekten der Entscheidung auseinander und erläutert, aus welchen Gründen der BGH dem Käufer einige goldene Brücken für einen Schadensersatzanspruch gebaut hat.
Y1  - 2024
U6  - https://doi.org/10.9785/mdtr-2024-781203
SN  - 2194-4202 (online)
SN  - 0340-1812 (print)
VL  - 78
IS  - 12
SP  - 745
EP  - 748
PB  - Verlag Dr. Otto Schmidt
CY  - Köln
ER  - 
TY  - THES
A1  - Brauweiler, Philipp
T1  - incontrare : Gestaltung eines Meeting Raumes durch Konzeptmöbel
N2  - Incontrare, was übersetzt Begegnung bedeutet, ist ein Konferenztischkonzept, der durch seinen modularen
Aufbau heraus sticht. Dem Kunden ist es möglich das Produkt mit einem einzigen Werkzeug - fünfer Imbusschlüssel - aufzubauen. Der modulare Aufbau bietet die Möglichkeit kundenorientiert ein Produkt zusammensetzen zu können. Incontrare bietet hierdurch eine Vielzahl an Variationen, die nicht nur die gestalterischen Aspekte anspricht, sondern auch verschiedene Preisklassen abdeckt. Incontrare ist ein Tischkonzept, das sowohl im niederpreisigen , sowie auch im HighEnd Bereich funktioniert.
KW  - Begegnung
KW  - Verschieben
KW  - Stimmung
KW  - Regalkonzept
KW  - Imbussschlüssel
Y1  - 2024
N1  - Für diese Arbeit steht kein Volltext zur Verfügung.
PB  - FH Aachen
CY  - Aachen
ER  - 
TY  - THES
A1  - Fohrer, Emil
T1  - ARCHER : become the Arrow
BT  - Ein Redesign des Freischwingers
N2  - „Archer“ ist ein Redesign des Freischwingers. Ein klassischer Freischwinger ist ein aus Rohr gebogener Stuhl ohne Hinterbeine. Das Konzept des Freischwingers macht sich die Elastizität des Stahlrohrs zunutze, um einen schwingenden Sitz zu produzieren. An dieses Konzept knüpft „Archer“ herstellungstechnisch an, ergänzt jedoch ein paar Features. Der erste „USP“ ist die Rückenlehne, welche aus Nylonschnur gewoben ist. Die Lehne rahmt mehrdimensional eine Sattelfläche ein, die sich überraschend ergonomisch dem Rücken anpasst. Sie wächst aus den Armlehnen von vorne hinter dem Rücken zusammen. Eine weitere Neuheit sind die Hinterbeine des Stuhls. Der Schwung soll nicht weg, sondern hin zu dem, was was vor den Nutzenden liegt. In Kombination mit der Lehne, die aus den Armlehnen wächst und hinter dem Rücken schließt, ist das Gewicht über den Beinen gut ausbalanciert. In seinem Aufbau vereint Er ein reduziertes klares Stahlgestell mit dramatisch gewobener Schnur. Die zwei sichtbaren Materialien im Spiel miteinander werden optisch nur noch ergänzt von einem aus Kupfer, Messing oder Edelstahl gedrehten Stopfen mit konischem InLay. Der völlig eigene Aufbau mit Hinterbeinen und Armlehnen erlaubt federleichtes Schwingen, einfaches Aufstehen, neutralisiert Nervosität und fängt den Nutzer / die Nutzerin sanft auf. Die ineinander verwobenen Schnüre teilen das Gewicht gleichmäßig unter sich auf. Industrielle Herstellungsmethoden in Kombination mit Handarbeit machen diesen Stuhl zu etwas besonderem und da dem Konzept farblich kein Ende gesetzt ist, hat jeder Stuhl das Potenzial, zu einem unverkennbaren Einzelstück zu werden.
KW  - Freischwinger
KW  - Nylon
KW  - Stahlgestell
KW  - Schwung
KW  - Handarbeit
Y1  - 2024
N1  - Für diese Arbeit steht kein Volltext zur Verfügung.
PB  - FH Aachen
CY  - Aachen
ER  - 
TY  - CHAP
A1  - Eggert, Mathias
A1  - Schade, Maximilian
A1  - Bröhl, Florian
A1  - Moriz, Alexander
ED  - Mandviwalla, Munir
ED  - Söllner, Matthias
ED  - Tuunanen, Tuure
T1  - Generating synthetic LiDAR point cloud data for object detection using the Unreal Game Engine
T2  - Design Science Research for a Resilient Future (DESRIST 2024)
N2  - Object detection based on artificial intelligence is ubiquitous in today’s computer vision research and application. The training of the neural networks for object detection requires large and high-quality datasets. Besides datasets based on image data, datasets derived from point clouds offer several advantages. However, training datasets are sparse and their generation requires a lot of effort, especially in industrial domains. A solution to this issue offers the generation of synthetic point cloud data. Based on the design science research method, the work at hand proposes an approach and its instantiation for generating synthetic point cloud data based on the Unreal Engine. The point cloud quality is evaluated by comparing the synthetic cloud to a real-world point cloud. Within a practical example the applicability of the Unreal Game engine for synthetic point cloud generation could be successfully demonstrated.
Y1  - 2024
SN  - 978-3-031-61174-2 (Print)
SN  - 978-3-031-61175-9 (Online)
U6  - https://doi.org/10.1007/978-3-031-61175-9_20
N1  - 19th International Conference on Design Science Research in Information Systems and Technology, DESRIST 2024, Trollhättan, Sweden, June 3–5, 2024
SP  - 295
EP  - 309
PB  - Springer
CY  - Cham
ER  - 
TY  - JOUR
A1  - Koch, Christopher
A1  - Böhnisch, Nils
A1  - Verdonck, Hendrik
A1  - Hach, Oliver
A1  - Braun, Carsten
T1  - Comparison of unsteady low- and mid-fidelity propeller aerodynamic methods for whirl flutter applications
JF  - Applied Sciences
N2  - Aircraft configurations with propellers have been drawing more attention in recent times, partly due to new propulsion concepts based on hydrogen fuel cells and electric motors. These configurations are prone to whirl flutter, which is an aeroelastic instability affecting airframes with elastically supported propellers. It commonly needs to be mitigated already during the design phase of such configurations, requiring, among other things, unsteady aerodynamic transfer functions for the propeller. However, no comprehensive assessment of unsteady propeller aerodynamics for aeroelastic analysis is available in the literature. This paper provides a detailed comparison of nine different low- to mid-fidelity aerodynamic methods, demonstrating their impact on linear, unsteady aerodynamics, as well as whirl flutter stability prediction. Quasi-steady and unsteady methods for blade lift with or without coupling to blade element momentum theory are evaluated and compared to mid-fidelity potential flow solvers (UPM and DUST) and classical, derivative-based methods. Time-domain identification of frequency-domain transfer functions for the unsteady propeller hub loads is used to compare the different methods. Predictions of the minimum required pylon stiffness for stability show good agreement among the mid-fidelity methods. The differences in the stability predictions for the low-fidelity methods are higher. Most methods studied yield a more unstable system than classical, derivative-based whirl flutter analysis, indicating that the use of more sophisticated aerodynamic modeling techniques might be required for accurate whirl flutter prediction.
KW  - Aeroelasticity
KW  - Flutter
KW  - Propeller whirl flutter
KW  - Unsteady aerodynamics
KW  - 1P hub loads
Y1  - 2024
U6  - https://doi.org/10.3390/app14020850
SN  - 2076-3417
VL  - 14
IS  - 2
SP  - 1
EP  - 28
PB  - MDPI
CY  - Basel
ER  - 
TY  - BOOK
A1  - Staat, Manfred
A1  - Digel, Ilya
A1  - Trzewik, Jürgen
A1  - Sielemann, Stefanie
A1  - Erni, Daniel
A1  - Zylka, Waldemar
T1  - Symposium Proceedings; 4th YRA MedTech Symposium 2024 : February 1 / 2024 / FH Aachen
Y1  - 2024
SN  - 978-3-940402-65-3
U6  - https://doi.org/10.17185/duepublico/81475
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Simsek, Beril
A1  - Krause, Hans-Joachim
A1  - Engelmann, Ulrich M.
ED  - Digel, Ilya
ED  - Staat, Manfred
ED  - Trzewik, Jürgen
ED  - Sielemann, Stefanie
ED  - Erni, Daniel
ED  - Zylka, Waldemar
T1  - Magnetic biosensing with magnetic nanoparticles: Simulative approach to predict signal intensity in frequency mixing magnetic detection
T2  - YRA MedTech Symposium (2024)
N2  - 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.
Y1  - 2024
SN  - 978-3-940402-65-3
U6  - https://doi.org/10.17185/duepublico/81475
N1  - 4th YRA MedTech Symposium, February 1, 2024. FH Aachen, Campus Jülich
SP  - 27
EP  - 28
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Schmitz, Annika
A1  - Apandi, Shah Eiman Amzar Shah
A1  - Spillner, Jan
A1  - Hima, Flutura
A1  - Behbahani, Mehdi
ED  - Digel, Ilya
ED  - Staat, Manfred
ED  - Trzewik, Jürgen
ED  - Sielemann, Stefanie
ED  - Erni, Daniel
ED  - Zylka, Waldemar
T1  - Effect of different cannula positions in the pulmonary artery on blood flow and gas exchange using computational fluid dynamics analysis
T2  - YRA MedTech Symposium (2024)
N2  - Pulmonary arterial cannulation is a common and effective method for percutaneous mechanical circulatory support for concurrent right heart and respiratory failure [1]. However, limited data exists to what effect the positioning of the cannula has on the oxygen perfusion throughout the pulmonary artery (PA). This study aims to evaluate, using computational fluid dynamics (CFD), the effect of different cannula positions in the PA with respect to the oxygenation of the different branching vessels in order for an optimal cannula position to be determined. The four chosen different positions (see Fig. 1) of the cannulas are, in the lower part of the main pulmonary artery (MPA), in the MPA at the junction between the right pulmonary artery (RPA) and the left pulmonary artery (LPA), in the RPA at the first branch of the RPA and in the LPA at the first branch of the LPA.
Y1  - 2024
SN  - 978-3-940402-65-3
U6  - https://doi.org/10.17185/duepublico/81475
N1  - 4th YRA MedTech Symposium, February 1, 2024. FH Aachen, Campus Jülich
SP  - 29
EP  - 30
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Sherelkhan, Dinara
A1  - Alibekova, Alina
ED  - Digel, Ilya
ED  - Staat, Manfred
ED  - Trzewik, Jürgen
ED  - Sielemann, Stefanie
ED  - Erni, Daniel
ED  - Zylka, Waldemar
T1  - EEM spectroscopy characterization of humic substances of biomedical importance
T2  - YRA MedTech Symposium (2024)
N2  - Humic substances possess distinctive chemical features enabling their use in many advanced applications, including biomedical fields. No chemicals in nature have the same combination of specific chemical and biological properties as humic substances. Traditional medicine and modern research have demonstrated that humic substances from different sources possess immunomodulatory and anti-inflammatory properties, which makes them suitable for the prevention and treatment of chronic dermatoses, allergic rhinitis, atopic dermatitis, and other conditions characterized by inflammatory and allergic responses [1-4]. The use of humic compounds as agentswith antifungal and antiviral properties shows great potential [5-7].
Y1  - 2024
SN  - 978-3-940402-65-3
U6  - https://doi.org/10.17185/duepublico/81475
N1  - 4th YRA MedTech Symposium, February 1, 2024. FH Aachen, Campus Jülich
SP  - 31
EP  - 32
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - CHAP
A1  - Tepecik, Atakan
ED  - Digel, Ilya
ED  - Staat, Manfred
ED  - Trzewik, Jürgen
ED  - Sielemann, Stefanie
ED  - Erni, Daniel
ED  - Zylka, Waldemar
T1  - AstroBioLab: Review of technical and bioanalytical approaches
T2  - YRA MedTech Symposium (2024)
N2  - This study presents the concept of AstroBioLab, an autonomous astrobiological field laboratory tailored for the exploration of (sub)glacial habitats. AstroBioLab is an integral component of the TRIPLE (Technologies for Rapid Ice Penetration and subglacial Lake Exploration) DLR-funded project, aimed at advancing astrobiology research through the development and deployment of innovative technologies. AstroBioLab integrates diverse measurement techniques such as fluorescence microscopy, DNA sequencing and fluorescence spectrometry, while leveraging microfluidics for efficient sample delivery and preparation.
Y1  - 2024
SN  - 978-3-940402-65-3
U6  - https://doi.org/10.17185/duepublico/81475
N1  - 4th YRA MedTech Symposium, February 1, 2024. FH Aachen, Campus Jülich
SP  - 33
EP  - 34
PB  - Universität Duisburg-Essen
CY  - Duisburg
ER  - 
TY  - BOOK
A1  - Drumm, Christian
A1  - Scheuermann, Bernd
A1  - Weidner, Stefan
T1  - Introduction to SAP S/4HANA® : The official companion book based on model company Global Bike–for learning, teaching, and training
N2  - This easy-to-understand introduction to SAP S/4HANA guides you through the central processes in sales, purchasing and procurement, finance, production, and warehouse management using the model company Global Bike. Familiarize yourself with the basics of business administration, the relevant organizational data, master data, and transactional data, as well as a selection of core business processes in SAP. Using practical examples and tutorials, you will soon become an SAP S/4HANA professional!

Tutorials and exercises for beginners, advanced users, and experts make it easy for you to practice your new knowledge. The prerequisite for this book is access to an SAP S/4HANA client with Global Bike version 4.1. 

- Business fundamentals and processes in the SAP system
- Sales, purchasing and procurement, production, finance, and warehouse management
- Tutorials at different qualification levels, exercises, and recap of case studies
- Includes extensive download material for students, lecturers, and professors
Y1  - 2024
SN  - 9783960122685
PB  - Espresso Tutorials
CY  - Gleichen
ER  - 
TY  - THES
A1  - Albrecht, Dustin
T1  - „ARRK Journeys“ Filmformat-Konzept
N2  - Das Projekt "ARRK Journeys" entwickelt ein neues Dokumentarfilm-Format, das darauf abzielt, potenzielle Mitarbeiter für die ARRK Engineering GmbH zu gewinnen

Das Ziel des Projekts ist es, die Vielfalt an Karrieremöglichkeiten bei der ARRK Engineering GmbH aufzuzeigen und die Attraktivität des Unternehmens als Arbeitgeber zu betonen. Durch individuelle Mitarbeitergeschichten werden die Fragen beantwortet, warum eine berufliche Laufbahn bei ARRK erstrebenswert ist, ob jeder die Möglichkeit hat, bei ARRK zu arbeiten, und welche Entwicklungsmöglichkeiten das Unternehmen bietet. "ARRK Journeys" betont das Wohlbefinden der Mitarbeiter und ihre persönliche Bindung zum Unternehmen, um eine positive Arbeitgebermarke zu schaffen.

"ARRK Journeys" präsentiert die ARRK Engineering GmbH als attraktiven Arbeitgeber und inspiriert potenzielle Mitarbeiter dazu, ihren eigenen Weg zu finden.
KW  - Employer Branding
KW  - Filmkonzept
KW  - Marketing
KW  - Film
KW  - Dokumentarfilm
Y1  - 2024
N1  - Für diese Arbeit steht kein Volltext zur Verfügung.
PB  - FH Aachen
CY  - Aachen
ER  -