Experimental study of nonlinear phenomena in an upright piano.

2011 ◽  
Vol 129 (4) ◽  
pp. 2542-2542
Author(s):  
Antoine Chaigne ◽  
Juliette Chabassier
Keyword(s):  
Experimental Study ◽  
Nonlinear Phenomena

Measuring Strain Distribution During Mesoscopic Domain Reorientation in a Ferroelectric Material

1998 ◽  
Vol 120 (1) ◽  
pp. 1-6 ◽  
Author(s):  
S. B. Park ◽  
S. S. Park ◽  
G. P. Carman ◽  
H. T. Hahn
Keyword(s):  
Experimental Study ◽  
Strain Distribution ◽  
Large Strain ◽  
Polarization Switching ◽  
Ferroelectric Material ◽  
Nonlinear Phenomena ◽  
Moire Interferometry ◽  
Microcrack Initiation ◽  
Shear Strains ◽  
Domain Reorientation

In this paper, we present the results of an experimental study focused on understanding the strain concentrations arising due to nonlinear phenomena associated with polarization switching. A moire interferometry technique is used to measure the normal and shear strains of a PZT-5H piezoceramic undergoing 180 and 90 deg switching. These results include the strain concentrations measured between polarized regions oriented 180 and 90 deg apart. The results show that very large strain mismatches (e.g., as large as 4500 microstrains) occur along the boundary of dissimilar oriented domains, suggesting a source of microcrack initiation and fatigue degradation.

scholarly journals Towards novel probes for valence charges via x-ray optical wave mixing

2020 ◽  
Author(s):  
Christina Boemer ◽  
Dietrich Krebs ◽  
Andrei Benediktovitch ◽  
Emanuele Rossi ◽  
Simo Huotari ◽  
...  
Keyword(s):  
Experimental Study ◽  
Nonlinear Phenomena ◽  
Spectroscopic Techniques ◽  
Wave Mixing ◽  
Optical Wave ◽  
X Ray ◽  
Optical Domain

We present a combined theoretical and experimental study of x-ray optical wave mixing. This class of nonlinear phenomena combines the strengths of spectroscopic techniques from the optical domain, with the...

Experimental study on the restoration from a tilt-azimuth series for improvement in resolution

1995 ◽  
Vol 53 ◽  
pp. 636-637
Author(s):  
Norio Baba ◽  
Norihiko Ichise ◽  
Syunya Watanabe
Keyword(s):  
Experimental Study ◽  
Spherical Aberration ◽  
Incident Beam ◽  
Optical Parameters ◽  
Beam Tilting ◽  
Illumination Method ◽  
Restoration Method ◽  
Illumination Mode

The tilted beam illumination method is used to improve the resolution comparing with the axial illumination mode. Using this advantage, a restoration method of several tilted beam images covering the full azimuthal range was proposed by Saxton, and experimentally examined. To make this technique more reliable it seems that some practical problems still remain. In this report the restoration was attempted and the problems were considered. In our study, four problems were pointed out for the experiment of the restoration. (1) Accurate beam tilt adjustment to fit the incident beam to the coma-free axis for the symmetrical beam tilting over the full azimuthal range. (2) Accurate measurements of the optical parameters which are necessary to design the restoration filter. Even if the spherical aberration coefficient Cs is known with accuracy and the axial astigmatism is sufficiently compensated, at least the defocus value must be measured. (3) Accurate alignment of the tilt-azimuth series images.

An Experimental Study of Some Properties of Stuttered Words

1962 ◽  
Vol 5 (4) ◽  
pp. 387-394 ◽  
Author(s):  
Bruce Quarrington ◽  
Jerome Conway ◽  
Nathan Siegel
Keyword(s):  
Experimental Study

Experimental study of total body washout employing extracorporeal circulation and hypothermia

1974 ◽  
Vol 126 (2) ◽  
pp. 243-248
Author(s):  
A WAKABAYASHI ◽  
T KUBO ◽  
K CHARNEY ◽  
Y NAKAMURA ◽  
J CONNOLLY
Keyword(s):  
Experimental Study ◽  
Extracorporeal Circulation ◽  
Total Body

Gastric Freezing: An Experimental Study

1963 ◽  
Vol 45 (3) ◽  
pp. 374-383 ◽  
Author(s):  
Donald C. McIlrath ◽  
George A. Hallenbeck ◽  
Hubert A. Allen ◽  
Charles V. Mann ◽  
Edward J. Baldes ◽  
...  
Keyword(s):  
Experimental Study

The Effect of Cortisone and Corticotropin on The Healing of Gastric Ulcer: An Experimental Study

1958 ◽  
Vol 34 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Henry D. Janowitz ◽  
Vernon A. Weinstein ◽  
Rhoda G. Shaer ◽  
James F. Cereghini ◽  
Franklin Hollander
Keyword(s):  
Experimental Study ◽  
Gastric Ulcer
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