Experimental study of acoustic reduction technique for H3 launch vehicle

2018 ◽  
Vol 144 (3) ◽  
pp. 1673-1673
Author(s):  
Wataru Sarae ◽  
Keita Terashima ◽  
Seiji Tsutsumi ◽  
Masao Takegoshi ◽  
Hiroaki Kobayashi
Keyword(s):  
Experimental Study ◽  
Launch Vehicle ◽  
Reduction Technique ◽  
Acoustic Reduction

Experimental Study on a 3D Printed Altitude-Compensating Expansion-Deflection Nozzle for a Launch Vehicle

2019 ◽  
Vol 43 (12) ◽  
pp. 859-869
Author(s):  
Ki Hwan Lee ◽  
Sang Hyeon Park ◽  
Jaye Koo ◽  
Hwanil Huh
Keyword(s):  
Experimental Study ◽  
Launch Vehicle ◽  
3D Printed

An experimental study on harmful pollution reduction technique in low heat rejection engine fuelled with blends of pre-heated linseed oil and nano additive

2021 ◽  
Vol 283 ◽  
pp. 124617 ◽  
Author(s):  
P.V. Elumalai ◽  
Dhinesh Balasubramanian ◽  
M. Parthasarathy ◽  
A.R. Pradeepkumar ◽  
S. Mohamed Iqbal ◽  
...  
Keyword(s):  
Experimental Study ◽  
Linseed Oil ◽  
Reduction Technique ◽  
Pollution Reduction ◽  
Heat Rejection ◽  
Low Heat Rejection Engine

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
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