Dynamic Strains in a 60-mm Gun Tube - An Experimental Study

1992 ◽  
Author(s):  
T. E. Simkins ◽  
G. A. Pflegl ◽  
E. G. Stilson
Keyword(s):  
Experimental Study ◽  
Dynamic Strains

The Measurement of Dynamic Strains Using Birefringent Strips

1966 ◽  
Vol 33 (1) ◽  
pp. 173-181 ◽  
Author(s):  
J. T. Frasier ◽  
D. N. Robinson
Keyword(s):  
Experimental Study ◽  
Satisfactory Agreement ◽  
Explosive Charge ◽  
Reliable Method ◽  
Strain Gages ◽  
Wire Strain ◽  
Fringe Patterns ◽  
Strain Pulse ◽  
Dynamic Strains ◽  
Major Emphasis

An experimental study is presented of the bonded birefringent strip as a means of observing transient deformations on the surfaces of opaque bodies. The particular situation investigated consists of a birefringent sheet bonded to a metal rod in which a strain pulse is initiated by a small explosive charge. Major emphasis is placed upon the study of two problems associated with the use of the technique. The first is the development of a reliable method of interpreting the observed photoelastic fringe patterns. The second is an evaluation of the influence the sheet has on the strain pulse in the bar. Satisfactory agreement is obtained between the strain profile at the rod-sheet interface determined by using a birefringent strip and the profile given by resistance-wire strain gages.

Dynamic Strains in a 60 mm Gun Tube: An Experimental Study

1993 ◽  
Vol 168 (3) ◽  
pp. 549-557 ◽  
Author(s):  
T.E. Simkins ◽  
G.A. Pflegl ◽  
E.G. Stilson
Keyword(s):  
Experimental Study ◽  
Dynamic Strains

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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