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Publikationen von Professorinnen und Professoren der HAW Hamburg

Jahr:  
Alle : 1983, ... , 2016, 2017, 2018, 2019
Autor:  
Alle : A, À, B, C, D, E, F, G, H, I, J, K, L, M, N, O, Ö, P, Q, R, S, T, U, V, W, Y, Z 
Alle : Haag, ... , Hensel, Hentschel, Henze, ... , Hösl-Kulike 
Präferenzen: 
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Referenzen

Zeitschriftenbeiträge:

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Bernd Baumann, Jörg Schwieger, Ulrich Stein, Sarah Hallerberg und Marcus Wolff
High-intensity discharge lamp and Duffing oscillator--Similarities and differences
Journal of Applied Physics, 122(21):16
6 Dezember 2017
E

Marker: TI-MP

Zusammenfassung: The processes inside the arc tube of high-intensity discharge lamps are investigated by finite element simulations. The behavior of the gas mixture inside the arc tube is governed by differential equations describing mass, energy and charge conservation as well as the Helmholtz equation for the acoustic pressure and the Reynolds equations for the flow driven by buoyancy and Reynolds stresses. The model is highly nonlinear and requires a recursion procedure to account for the impact of acoustic streaming on the temperature and other fields. The investigations reveal the presence of a hysteresis and the corresponding jump phenomenon, quite similar to a Duffing oscillator. The similarities and, in particular, the differences of the nonlinear behavior of the high-intensity discharge lamp to that of a Duffing oscillator are discussed. For large amplitudes the high-intensity discharge lamp exhibits a stiffening effect in contrast to the Duffing oscillator. It is speculated on how the stiffening might affect hysteresis suppression.

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Walter Leal Filho, A. Q. Al-Amin, N. M. Habib und A. H. Chowdhury
Assessing climate change mitigation proposals for Malaysia: Implications for emissions and abatement costs
Journal of Cleaner Production, Vol 167, :163-173
20 November 2017

Marker: LS

pdf
Birgit Haase
Footwear – Shoes and Boots from the Hopkins Collection. (Rezension)
netzwerk mode textil,
19 August 2017

Marker: DMI-D

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Bernd Baumann, Jörg Schwieger, Ulrich Stein, Sarah Hallerberg und Marcus Wolff
High-Intensity Discharge Lamp and Duffing Oscillator - Similarities and Differences
arXiv,
8 Mai 2017

Marker: TI-MP

Zusammenfassung: The processes inside the arc tube of high-intensity discharge lamps are inves- tigated by finite element simulations. The behavior of the gas mixture inside the arc tube is governed by differential equations describing mass, energy and charge conservation as well as the Helmholtz equation for the acoustic pressure and the Navier-Stokes equation for the flow driven by the buoyancy and the acous- tic streaming force. The model is highly nonlinear and requires a recursion proce- dure to account for the impact of acoustic streaming on the temperature and other fields. The investigations reveal the presence of a hysteresis and the correspond- ing jump phenomenon, quite similar to a Duffing oscillator. The similarities and, in particular, the differences of the nonlinear behavior of the high-intensity dis- charge lamp to that of a Duffing oscillator are discussed. For large amplitudes the high-intensity discharge lamp exhibits a stiffening effect in contrast to the Duffing oscillator.

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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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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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Kathrin Kirchner, Felix Reher, Rüdiger Weißbach und Robert Heinrich
Agilität in der Prozessmodellierung - Ein Beitrag zu gutem Requirements Engineering?
Sotwaretechnik-Trends, 37 (2017)(2 (Mai)):6-7
2017
ISSN: 0720-8928
deutsch

Marker: WS-W

Zusammenfassung: Beitrag zum Treffen der Fachgruppe Requirements Engineering der Gesellschafts für Informatik e.V, 25./26.11.2016, Stuttgart

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Ernst Sanders, Björn Beckmann, Dorothea Hohmann, Moritz Eickmeyer, Sarah Bolz, Corinna Brodhagen und Petra Derr
An improved high cell density cultivation - iHCDC - strategy for leucine auxotrophic Escherichia coli
K12 ER2507. Eng. Life Sci. 17, :857–864
2017

Marker: LS-Bt

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Nahal Sharafi, Marc Timme und Sarah Hallerberg
Critical transitions and perturbation growth directions
Phys. Rev. E, (96):032220
2017

Marker: TI-MP

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Christine Haas
Ein interdisziplinärer Blick auf Kinder und Familien – Erste Internationale Familienfachtagung an der HAW
standpunkt : sozial, Hamburg, 2/ 2017, :106-109
2017
ISSN: 0937-5791

Schlüsselwörter: Tagungsbericht, Interdisziplinarität, Familienwissenschaft, Kindheitswissenschaft

Marker: Soziale Arbeit

Zusammenfassung: Zusammenfassender Tagungsbericht über die Erste Internationale Fachtagung Kindheits- und Familienwissenschaften an der HAW Hamburg im Februar 2017.

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Letzte Änderung: 23.01.15

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