Improved prospective frequency correction for macromolecule‐suppressed GABA editing with metabolite cycling at 3T

2021 ◽  
Author(s):  
Kimberly L. Chan ◽  
Andreas Hock ◽  
Richard A. E. Edden ◽  
Erin L. MacMillan ◽  
Anke Henning
Keyword(s):  
Frequency Correction

Comb coherence-transfer and cavity ring-down saturation spectroscopy around 1.65μm: kHz-accurate frequencies of transitions in the 2ν3 band of 12CH4

2022 ◽  
Author(s):  
Ondrej Votava ◽  
Samir Kassi ◽  
Alain Campargue ◽  
Daniele Romanini
Keyword(s):  
Diode Laser ◽  
Frequency Comb ◽  
Coherence Transfer ◽  
Feed Forward ◽  
Saturation Spectroscopy ◽  
Optical Phase ◽  
Frequency Correction ◽  
Free Running ◽  
Cavity Ring Down

Comb Coherence Transfer (CCT) uses a feed-forward frequency correction to transfer the optical phase of a frequency comb to the beam of a free-running diode laser. This allows to amplify...

Frequency Effects in the Elevated Temperature Crack Growth Behavior of Austenitic Stainless Steels—A Design Approach

1979 ◽  
Vol 101 (2) ◽  
pp. 171-176 ◽  
Author(s):  
L. A. James
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Correction Factor ◽  
Stainless Steels ◽  
Growth Behavior ◽  
Crack Growth Behavior ◽  
Fatigue Crack Growth Behavior ◽  
Standard Frequency ◽  
Frequency Correction

The fatigue-crack growth behavior of annealed types 304 and 316 stainless steels is determined over a range of cyclic frequencies in an air environment at temperatures of 800°F (427°C), 1000°F (538°C) and 1200°F (649°C). A good portion of the experimental data supports the observation that the fatigue crack growth rates at a given value of ΔK increases with decreasing frequencies. The behavior ot each temperature is normalized relative to the behavior at a “standard” frequency of 40 cpm, and a simple frequency correction factor is derived. This frequency correction factor, more applicable to type 304 than to 316 stainless steels, is further coupled with temperature effects data taken at the “standard” frequency and combined with a stress ratio correction to furnish estimates of the fatigue crack growth behavior of those two steels over a fairly wide range of parameters.

Sign in / Sign up

Export Citation Format

Share Document