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Recognition of subjects with mild cognitive impairment (MCI) by the use of retinal arterial vessels.
(2019)
Rapid Tooling
(2019)
Recent Unmanned Aerial Vehicle (UAV) design procedures rely on full aircraft steady-state Reynolds-Averaged-Navier-Stokes (RANS) analyses in early design stages. Small sensor turrets are included in such simulations, even though their aerodynamic properties show highly unsteady behavior. Very little is known about the effects of this approach on the simulation outcomes of small turrets. Therefore, the flow around a model turret at a Reynolds number of 47,400 is simulated with a steady-state RANS approach and compared to experimental data. Lift, drag, and surface pressure show good agreement with the experiment. The RANS model predicts the separation location too far downstream and shows a larger recirculation region aft of the body. Both characteristic arch and horseshoe vortex structures are visualized and qualitatively match the ones found by the experiment. The Reynolds number dependence of the drag coefficient follows the trend of a sphere within a distinct range. The outcomes indicate that a steady-state RANS model of a small sensor turret is able to give results that are useful for UAV engineering purposes but might not be suited for detailed insight into flow properties.
Production and Characterization of Porous Fibroin Scaffolds for Regenerative Medical Application
(2019)
Praxistransfer in der tertiären Bildungsforschung: Modelle, Gelingensbedingungen und Nachhaltigkeit
(2019)
Postural and metabolic benefits of using a forearm support walker in older adults with impairments
(2019)
Optical Instruments require an extremely stable thermal surrounding to prevent loss of data quality by misalignments of the instrument components resulting from material deformation due to temperature f luctuations (e.g. from solar intrusion). Phase Change Material (PCM) can be applied as a thermal damper to achieve a more uniform temperature distribution. The challenge of this method is, among others, the integration of PCM into affected areas. If correctly designed, incoming heat is latently absorbed during phase change of the PCM, i.e. the temperature of a structure remains almost constant. In a cold phase, the heat during phase change is released again latently until the PCM returns to its original state of aggregation. Thus, the structure is thermally stabilized. At FH Aachen– University of Applied Sciences research is conducted to apply PCM directly into the structures of affected components (baffles, optical benches, electronic boxes, etc.). Through the application of Additive Manufacturing, the necessary voids are directly printed into these structures and filled later with PCM. Additive Manufacturing enables complex structures that would not have been possible with conservative manufacturing methods. A corresponding Breadboard was developed and manufactured by Selective Laser Melting (SLM). The current state of research includes the handling and analysis of the Breadboard, tests and a correlation of the thermal model. The results have shown analytically and practically that it is possible to use PCM as an integral part of the structure as a thermal damper. The results serve as a basis for the further development of the technology, which should maximize performance and enable the integration of PCM into much more complex structures.
Aufgrund des § 2 Absatz 4 Satz 1 in Verbindung mit § 64 des Gesetzes über die Hochschulen des Landes Nordrhein-Westfalen (Hochschulgesetz – HG) vom 16. September 2014 (GV. NRW. S. 547), zuletzt geändert durch Artikel 3 des Gesetzes
vom 17. Oktober 2017 (GV. NRW. S. 806), und der Rahmenprüfungsordnung (RPO) für die Bachelor- und Masterstudiengänge an der Fachhochschule Aachen vom 1. Februar 2018 (FH-Mitteilung Nr. 3/2018) hat der Fachbereich Architektur folgende
Änderung der Prüfungsordnung vom 5. Juli 2018 (FH-Mitteilung Nr. 105/2018) erlassen.
Aufgrund des § 2 Absatz 4 Satz 1 in Verbindung mit § 64 des Gesetzes über die Hochschulen des Landes Nordrhein-Westfalen (Hochschulgesetz – HG) vom 16. September 2014 (GV. NRW. S. 547), zuletzt geändert durch Artikel 3 des Gesetzes vom 17. Oktober 2017 (GV. NRW. S. 806), und der Rahmenprüfungsordnung (RPO) für die Bachelor- und Masterstudiengänge an der Fachhochschule Aachen vom 1. Februar 2018 (FH-Mitteilung Nr. 3/2018) hat der Fachbereich Architektur folgende Änderung der Prüfungsordnung vom 5. Juli 2018 (FH-Mitteilung Nr. 104/2018) erlassen.