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Publikationen von Professorinnen und Professoren der HAW Hamburg

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2018

Tagungs-/Konferenz-/Katalogbeiträge:

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S. Ahmad Fazelzadeh, Dieter Scholz, Abbas Mazidi und Michael I. Friswell
Flutter Characteristics of Typical Wing Sections of a Box Wing Aircraft Configuration
Advanced Aircraft Efficient Global Air Transport System (AEGATS 2018)
Toulouse
23.-25.10.2018
Proceedings of the AEGATS Conference 2018
Association Aéronautique et Astronautique de France (3AF)

Schlüsselwörter: Flutter, BWA, Wing, Section, Aircraft, Boxwing, Configuration

Marker: TI-FF

Zusammenfassung: In this paper, the aeroelastic modeling and conceptual flutter analysis of a simple 2-D box wing is investigated. For each wing the torsion and bending elasticity is simulated by two torsional and longitudinal springs at its elastic axis. Furthermore, the connection winglet is simulated by a longitudinal spring. The aeroelastic governing equations are derived using Lagrange’s equations. Also, for aeroelastic loads simulation on the box wing, the Theodorsen aerodynamic model is used. The effects of various design parameters such as front and rear wing physical and geometrical properties, the connection winglet angle and stiffness, and aircraft altitude on the flutter of the system are investigated. Results show that the connection winglet stiffness and angle have significant influence on the box wing flutter boundary.

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Sebastian Szancer, Philipp Meyer und Franz Korf
Migration from SERCOS III to TSN - Simulation Based Comparison of TDMA and CBS Transportation
5th International OMNeT++ Community Summit
Proceedings of the 5th International OMNeT++ Community Summit , Seite 52-62.

Marker: TI-I

Technische Berichte:

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Cenk Gündogan, Thomas C. Schmidt, Matthias Wählisch, Christopher Scherb, Claudio Marxer und Christian Tschudin
ICN Adaptation to LowPAN Networks (ICN LoWPAN)
IRTF Internet Draft -- work in progress
Dokument Nummer: 01
IRTF,
November 2018

Marker: TI-I

Zusammenfassung: In this document, a convergence layer for CCNx and NDN over IEEE 802.15.4 LoWPAN networks is defined. A new frame format is specified to adapt CCNx and NDN packets to the small MTU size of IEEE 802.15.4. For that, syntactic and semantic changes to the TLV-based header formats are described. To support compatibility with other LoWPAN technologies that may coexist on a wireless medium, the dispatching scheme provided by 6LoWPAN is extended to include new dispatch types for CCNx and NDN. Additionally, the link fragmentation component of the 6LoWPAN dispatching framework is applied to ICN chunks. In its second part, the document defines stateless and stateful compression schemes to improve efficiency on constrained links. Stateless compression reduces TLV expressions to static header fields for common use cases. Stateful compression schemes elide state local to the LoWPAN and replace names in data packets by short local identifiers.

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Philipp Meyer, Franz Korf, Till Steinbach und Thomas C. Schmidt
Simulation of Mixed Critical In-vehicular Networks
Technical Report
Dokument Nummer: arXiv:1808.03081
Open Archive: arXiv.org,
August 2018

Marker: TI-I

Preise/Auszeichnungen:

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Jan Mietzner und Hannes Stahl
ARGUS Science Award 2016
Ulm
2018

Marker: DMI-M

Zusammenfassung: Stifter Airbus Defence & Space Ulm

Konferenz-/Workshop-/Podiumsdiskussionsbeiträge, Ausstellungs-/Modenschaubeteiligungen:

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Florian Albrecht, S. Baydoun, H. Panzer, S. Marburg und Thomas Kletschkowski
Numerische Untersuchungen zur Dynamik einer Antriebswelle im Kontakt mit einer PTFE-Wellendichtung, 44th German Annual Conference on Acoustics (DAGA) Munich, Germany
19 März 2018

Marker: TI-FF

Gutachtertätigkeiten:

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Jan Mietzner
13 unendgeltliche Gutachtertätigkeiten: Technical Program Committee (TPC) Member für IEEE Fachtagung
2018

Marker: DMI-M

Zusammenfassung: Technical Program Committee (TPC) Member für IEEE Fachtagungen 2016/17: - Wireless Communications & Networking Conference - International Conference on Communications (ICC) - Global Telecommunications Conference (Globecom) - Black Sea Communications Conference (BlackSeaCom)

2017

Zeitschriftenbeiträge:

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Debsankha Manik, Martin Rohden, Henrik Ronellenfitsch, Xiaozhu Zhang, Sarah Hallerberg, Dirk Witthaut und Marc Timme
Network susceptibilities: Theory and applications
Physical Review E,
23 Januar 2017

Marker: TI-MP

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Johanna Buchcik, Joachim Westenhöfer, Mick Fleming und Colin R. Martin
Is Health-Related Quality of Life the same for elderly Polish migrants, Turkish migrants and German natives? Testing the reliability and construct validity of the Sf-36 Health Survey in a cross-cultural comparison.
Cogent Psychology, 4:1280984
16 Januar 2017

Schlüsselwörter: Elderly Turkish and Polish migrants; Sf-36 health survey; structural equation modelling; confirmatory factor analysis; reliability; Cronbach’s ?

Marker: LS-GW

Zusammenfassung: Objective: The Sf-36 is the most widely used instrument to measure health-related quality of life (HRQoL) with the most convincing evidence of both internal consistency and test–retest reliability. In addition, it is appropriate for use among elderly and minority groups like migrants. The aim of this study is to investigate and compare the reliability and the factorial structure of the Sf-36 in a sample of elderly migrants and natives. The hypothesis is that the construct (the HRQoL consisting of eight dimensions correlated with two components) is the same for elderly Turkish migrants, Polish migrants and German natives. This means that the Sf- 36 model shows good psychometric properties and model invariance for the three groups investigated in this study. Methods: The Sf-36 v.2 was forward and backward translated to Turkish and Polish. In this cross-sectional study, interviews were conducted with a sample of elderly migrants from Turkey (n = 100), from Poland (n = 103) and a sample of elderly German natives (n = 101). All data were entered and analysed using SPSS version 21 and AMOS Graphics. Cronbach’s ? was used to analyse the reliability of the Sf-36. Multi-group confirmatory factor analysis (MGCFA)and structural equation modelling (SEM) were used for the Sf-36 model invariance testing. Results: The reliability of the Sf-36 was good to excellent for all Sf-36 dimensions (? > 0.7) except for General Health (0.55) in the Polish group. Multi-group confirmatory factor analysis (MGCFA) showed non-invariance between the three groups (CMIN: 180.172, df: 51, CMIN/df: 3.533, p < 0.001, CFI: 0.895, RMSEA: 0.092 for the unconstrained model). Model modifications resulted in a good model fit for the Polish group. However, an applicable common Sf-36 model for the three groups was not attained. Conclusion: This study doesn’t support the idea that the factorial structure of the Sf-36 with two components and eight dimensions is the same across three ethnically and culturally diverse groups of elderly subjects. Therefore, comparing subscale scores of the Sf-36 between different ethnic groups may be problematic.

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Jürgen Lorenz, M. Hauck, S. Schröder und G. Meyer-Hamme
Acupuncture analgesia involves modulation of pain-induced gamma oscillations and cortical network connectivity
Scientific reports 7,
2017

Marker: LS

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Letzte Änderung: 23.01.15

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