Determination of Reflection Coefficients and Insertion Loss of a Wave‐Guide Junction

1953 ◽  
Vol 24 (8) ◽  
pp. 1046-1050 ◽  
Author(s):  
Georges A. Deschamps
Keyword(s):  
Insertion Loss ◽  
Wave Guide ◽  
Reflection Coefficients

Determination of Insertion Loss of noise barriers in Spanish roads

2022 ◽  
Vol 186 ◽  
pp. 108435
Author(s):  
Juan M. Martinez-Orozco ◽  
Antonio Barba
Keyword(s):  
Insertion Loss ◽  
Noise Barriers

A robust model developed by LCWR combined with uniform design for the determination of hydrogen peroxide in water used in a microgravity environment

2020 ◽  
Vol 12 (4) ◽  
pp. 514-519
Author(s):  
Hai-Sheng Dong ◽  
Wei Zhao ◽  
Ping Cao ◽  
Shu-Juan Li ◽  
Tong-Fang Liu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Space Exploration ◽  
Uniform Design ◽  
Liquid Core ◽  
Design Strategy ◽  
Wave Guide ◽  
Microgravity Environment ◽  
Robust Model ◽  
Manned Space

Hydrogen peroxide is widely used in manned space exploration missions. A liquid core wave guide Raman apparatus was developed for the determination of hydrogen peroxide concentration in water coupled with uniform design strategy.

On: “Special Report of the Subcommittee on Polarity Standards” by Ben B. Thigpen, A. E. Dalby, and Ralph Landrum (GEOPHYSICS, August 1975, p. 694–699)

Geophysics ◽  
1976 ◽  
Vol 41 (2) ◽  
pp. 324-324
Author(s):  
W. T. Valenta
Keyword(s):  
Reflection Coefficient ◽  
Compressional Wave ◽  
Velocity Versus ◽  
Reflection Coefficients ◽  
Special Report ◽  
Sonic Logs ◽  
The Relationship

In their report, the authors recommend that the arrival of a compressional wave at a geophone or hydrophone shall ultimately produce a trough (downward or leftward kick) on a seismogram; but they don’t say why. On sonic logs and displays of velocity versus time, velocity increases are up; likewise for density increases on density logs; likewise for positive reflection coefficients on reflection coefficient logs computed from the previously mentioned logs. Should not seismograms, which ideally are bandlimited reflection coefficient logs, conform to the same convention? The committee succeeded in the objectives of establishing the relationship between impulse‐source systems and vibratory‐source systems and of establishing tests for the determination of the polarity of a given system. I feel strongly that the committee should recommend that a compressional arrival shall produce a peak on a seismogram.

scholarly journals Determination of Insertion Loss of Acoustic Barriers under Specific Conditions

2017 ◽  
Vol 187 ◽  
pp. 289-294
Author(s):  
Aleksandras Jagniatinskis ◽  
Boris Fiks ◽  
Marius Mickaitis
Keyword(s):  
Insertion Loss
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