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1

A THEORETICAL INVESTIGATION OF OPTIMAL POWER ABSORPTION AS A NOISE CONTROL TECHNIQUE

S.J. SHARP, P.A. NELSON, G.H. KOOPMANN

Journal:

Journal of Sound and Vibration

Année:

2002

Langue:

english

Fichier:

PDF, 145 KB

english, 2002

2

The role of multinationals in the NIEO

Rolf Jungnickel, Georg Koopmann

Journal:

Année:

1976

Langue:

english

Fichier:

PDF, 379 KB

english, 1976

3

Neurobiological correlates of physical self-concept and self-identification with avatars in addicted players of Massively Multiplayer Online Role-Playing Games (MMORPGs)

Leménager, Tagrid, Dieter, Julia, Hill, Holger, Koopmann, Anne, Reinhard, Iris, Sell, Madlen, Kiefer, Falk, Vollstädt-Klein, Sabine, Mann, Karl

Journal:

Addictive Behaviors

Année:

2014

Langue:

english

Fichier:

PDF, 1.12 MB

english, 2014

4

Daily shifts in regulatory focus: The influence of work events and implications for employee well-being

Koopmann, Jaclyn, Lanaj, Klodiana, Bono, Joyce, Campana, Kristie

Journal:

Journal of Organizational Behavior

Année:

2016

Langue:

english

Fichier:

PDF, 303 KB

english, 2016

5

Compassion meditation increases optimism towards a transgressor

Koopmann-Holm, Birgit, Sze, Jocelyn, Jinpa, Thupten, Tsai, Jeanne L.

Journal:

Cognition & Emotion

Année:

2019

Fichier:

PDF, 969 KB

2019

6

AN INVERSE METHOD TO COMPUTE EQUIVALENT FORCES ON A STRUCTURE BASED ON SOUND POWER MEASUREMENTS

M.Y. YANG, G.H. KOOPMANN

Journal:

Journal of Sound and Vibration

Année:

2002

Langue:

english

Fichier:

PDF, 340 KB

english, 2002

7

Model studies of Helmholtz resonances in rooms with windows and doorways

G. Koopmann, H. Pollard

Journal:

Journal of Sound and Vibration

Année:

1971

Langue:

english

Fichier:

PDF, 1.28 MB

english, 1971

8

Reduction of centrifugal fan noise by use of resonators

W. Neise, G.H. Koopmann

Journal:

Journal of Sound and Vibration

Année:

1980

Langue:

english

Fichier:

PDF, 893 KB

english, 1980

9

A reduced eigenvalue method for broadband analysis of a structure with vibration absorbers possessing rotatory inertia

M.D. Grissom, A.D. Belegundu, G.H. Koopmann

Journal:

Journal of Sound and Vibration

Année:

2005

Langue:

english

Fichier:

PDF, 380 KB

english, 2005

10

Building vibrations and acoustics

G.H. Koopmann, M. Petyt

Journal:

Journal of Sound and Vibration

Année:

1973

Langue:

english

Fichier:

PDF, 2.00 MB

english, 1973

11

The vortex-excited resonant vibrations of circular cylinders

O.M. Griffin, R.A. Skop, G.H. Koopmann

Journal:

Journal of Sound and Vibration

Année:

1973

Langue:

english

Fichier:

PDF, 2.66 MB

english, 1973

12

Doha Round—Squaring the Triangles

Journal:

Année:

2006

Langue:

english

Fichier:

PDF, 53 KB

english, 2006

13

EU trade policy in the age of bilateralism

Georg Koopmann, Marco Wilhelm

Journal:

Année:

2010

Langue:

english

Fichier:

PDF, 195 KB

english, 2010

14

The use of resonators to silence centrifugal blowers

G.H. Koopmann, W. Neise

Journal:

Journal of Sound and Vibration

Année:

1982

Langue:

english

Fichier:

PDF, 722 KB

english, 1982

15

A method for computing acoustic fields based on the principle of wave superposition

Koopmann, Gary H.

Journal:

The Journal of the Acoustical Society of America

Année:

1989

Langue:

english

Fichier:

PDF, 771 KB

english, 1989

16

German foreign economic policy in the age of globalisation

Koopmann, Georg

Journal:

The International Spectator

Année:

1998

Langue:

english

Fichier:

PDF, 1.48 MB

english, 1998

17

Acoustic Design Sensitivity for Structural Radiators

Cunefare, K. A., Koopmann, G. H.

Journal:

Journal of Vibration Acoustics Stress and Reliability in Design

Année:

1992

Langue:

english

Fichier:

PDF, 1.36 MB

english, 1992

18

Donald A. Prater, Thomas Mann. Deutscher und Weltbürger. Eine Biographie. - Klaus Harpprecht, Thomas Mann. Eine Biographie.

Koopmann, Helmut

Journal:

Année:

1998

Langue:

german

Fichier:

PDF, 987 KB

german, 1998

19

[OSA Advanced Solid-State Photonics - Istanbul, Turkey (2011..-..)] Advances in Optical Materials - Long Wavelength Laser Operation of Tm:Sc_2O_3 at 2116 nm and Beyond

Koopmann, Philipp, Lamrini, Samir, Scholle, Karsten, Fuhrberg, Peter, Petermann, Klaus, Huber, Günter

Année:

2011

Langue:

english

Fichier:

PDF, 270 KB

english, 2011

20

Ullmann's Encyclopedia of Industrial Chemistry || Rubber, 11. Testing

Koopmann, Rüdiger

Année:

2000

Langue:

english

Fichier:

PDF, 108 KB

english, 2000

21

Buddhist-inspired meditation increases the value of calm.

Koopmann-Holm, Birgit, Sze, Jocelyn, Ochs, Camaron, Tsai, Jeanne L.

Journal:

Année:

2013

Langue:

english

Fichier:

PDF, 299 KB

english, 2013

22

Experimental and theoretical results of acoustic agglomeration at high pressures and high temperatures

Reethof, Gerhard, Song, Limin, Koopmann, Gary

Journal:

The Journal of the Acoustical Society of America

Année:

1990

Langue:

english

Fichier:

PDF, 252 KB

english, 1990

23

Additive Manufacturing of a Steel–Ceramic Multi-Material by Selective Laser Melting

Koopmann, J., Voigt, J., Niendorf, T.

Journal:

Metallurgical and Materials Transactions B

Année:

2019

Langue:

english

Fichier:

PDF, 3.25 MB

english, 2019

24

Hybrids between Brassica napus and B. nigra show frequent pairing between the B and A/C genomes and resistance to blackleg

Gaebelein, Roman, Alnajar, Dima, Koopmann, Birger, Mason, Annaliese S.

Journal:

Chromosome Research

Année:

2019

Langue:

english

Fichier:

PDF, 2.36 MB

english, 2019

25

Numerical errors of superposition solutions to the acoustic radiation of a vibrating structure

Song, Limin, Koopmann, Gary H.

Journal:

The Journal of the Acoustical Society of America

Année:

1990

Langue:

english

Fichier:

PDF, 551 KB

english, 1990

26

Active control for the acoustic radiation of a vibrating structure using a superposition formulation

Koopmann, Gary H.

Journal:

The Journal of the Acoustical Society of America

Année:

1990

Fichier:

PDF, 208 KB

1990

27

Did the General Population in Germany Drink More Alcohol during the COVID-19 Pandemic Lockdown?

Anne, Koopmann, Ekaterini, Georgiadou, Falk, Kiefer, Thomas, Hillemacher

Journal:

Alcohol and Alcoholism

Année:

2020

Fichier:

PDF, 84 KB

2020

28

VOLUME VELOCITY CONTROL OF SOUND TRANSMISSION THROUGH COMPOSITE PANELS

R.L. St. Pierre, Jr, G.H. Koopmann, W. Chen

Journal:

Journal of Sound and Vibration

Année:

1998

Langue:

english

Fichier:

PDF, 508 KB

english, 1998

29

THE USE OF MODAL TAILORING TO MINIMIZE THE RADIATED SOUND POWER OF VIBRATING SHELLS: THEORY AND EXPERIMENT

E.W. Constans, G.H. Koopmann, A.D. Belegundu

Journal:

Journal of Sound and Vibration

Année:

1998

Langue:

english

Fichier:

PDF, 268 KB

english, 1998

30

TUNING A WINE GLASS VIA MATERIAL TAILORING — AN APPLICATION OF A METHOD FOR OPTIMAL ACOUSTIC DESIGN

G.H. KOOPMANN, A.D. BELEGUNDU

Journal:

Journal of Sound and Vibration

Année:

2001

Langue:

english

Fichier:

PDF, 563 KB

english, 2001

31

An improved method for assigning a dynamic magnification factor to N-waves

G. Koopmann, R.M. Orris

Journal:

Journal of Sound and Vibration

Année:

1971

Langue:

english

Fichier:

PDF, 304 KB

english, 1971

32

A finite element method for determining the acoustic modes of irregular shaped cavities

M. Petyt, J. Lea, G.H. Koopmann

Journal:

Journal of Sound and Vibration

Année:

1976

Langue:

english

Fichier:

PDF, 500 KB

english, 1976

33

The acoustic modes of a rectangular cavity containing a rigid, incomplete partition

M. Petyt, G.H. Koopmann, R.J. Pinnington

Journal:

Journal of Sound and Vibration

Année:

1977

Langue:

english

Fichier:

PDF, 590 KB

english, 1977

34

The vortex-excited lift and reaction forces on resonantly vibrating cylinders

O.M. Griffin, G.H. Koopmann

Journal:

Journal of Sound and Vibration

Année:

1977

Langue:

english

Fichier:

PDF, 1.11 MB

english, 1977

35

Model studies of the effect of V-form ceilings on the acoustics of open plan offices

P.A. Nelson, G.H. Koopmann

Journal:

Journal of Sound and Vibration

Année:

1977

Langue:

english

Fichier:

PDF, 1.08 MB

english, 1977

36

A joint acceptance function for enclosed spaces

G.H. Koopmann, H.F. Pollard

Journal:

Journal of Sound and Vibration

Année:

1980

Langue:

english

Fichier:

PDF, 1.32 MB

english, 1980

37

Field observations and flume experiments on the nature of comet marks

F. Werner, G. Unsöld, B. Koopmann, A. Stefanon

Journal:

Sedimentary Geology

Année:

1980

Langue:

english

Fichier:

PDF, 5.02 MB

english, 1980

38

Monitoring the efficacy of ivermectin and albendazole against gastro intestinal nematodes of cattle in Northern Europe

J. Demeler, A.M.J. Van Zeveren, N. Kleinschmidt, J. Vercruysse, J. Höglund, R. Koopmann, J. Cabaret, E. Claerebout, M. Areskog, G. von Samson-Himmelstjerna

Journal:

Veterinary Parasitology

Année:

2009

Langue:

english

Fichier:

PDF, 152 KB

english, 2009

39

Modelling and characterization of a piezoceramic inertial actuator

G.A. Lesieutre, R. Rusovici, G.H. Koopmann, J.J. Dosch

Journal:

Journal of Sound and Vibration

Année:

2003

Langue:

english

Fichier:

PDF, 315 KB

english, 2003

40

Innovation in hygienic centrifugal pumps

Peter Koopmann, Ralf Stahlkopf

Journal:

Année:

1998

Langue:

english

Fichier:

PDF, 335 KB

english, 1998

41

MaRisk – Und noch lange nicht am Ziel!?

Jens Koopmann, Ingo Rauser

Journal:

Année:

2005

Langue:

german

Fichier:

PDF, 996 KB

german, 2005

42

Sexueller Symbolismus

Journal:

International Journal of Legal Medicine

Année:

1942

Langue:

german

Fichier:

PDF, 975 KB

german, 1942

43

Growing regionalism — A major challenge to the multilateral trading system

Journal:

Année:

2003

Langue:

english

Fichier:

PDF, 501 KB

english, 2003

44

Regionalism going global

Journal:

Année:

2003

Langue:

english

Fichier:

PDF, 160 KB

english, 2003

45

The WTO Compatibility of the Economic Partnership Agreements between the EU and the ACP Countries

Axel Borrmann, Harald Großmann, Georg Koopmann

Journal:

Année:

2006

Langue:

english

Fichier:

PDF, 104 KB

english, 2006

46

Competing Regionalism – Patterns, Economic Impact and Implications for the Multilateral Trading System

Stephen Woolcock, Claude Barfield, Donald MacLaren, Georg Koopmann

Journal:

Année:

2007

Langue:

english

Fichier:

PDF, 132 KB

english, 2007

47

Active source cancellation of the blade tone fundamental and harmonics in centrifugal fans

G.H. Koopmann, D.J. Fox, W. Neise

Journal:

Journal of Sound and Vibration

Année:

1988

Langue:

english

Fichier:

PDF, 823 KB

english, 1988

48

Foreign enterprises in Colombia

Journal:

Année:

1975

Langue:

english

Fichier:

PDF, 407 KB

english, 1975

49

Efficient diode-pumped laser operation of Tm:Lu_2O_3 around 2 μm

Petermann, Klaus, Huber, Günter, Koopmann, Philipp, Lamrini, Samir, Scholle, Karsten, Fuhrberg, Peter

Journal:

Année:

2011

Langue:

english

Fichier:

PDF, 527 KB

english, 2011

50

Between two poles: A dual currency board for Mercosur

Matthias Busse, Carsten Hefeker, Georg Koopmann

Journal:

The North American Journal of Economics and Finance

Année:

2006

Langue:

english

Fichier:

PDF, 371 KB

english, 2006