High-frequency EPR and ENDOR: Time-domain spectroscopy of ribonucleotide reductase

2001 ◽  
Vol 21 (3-4) ◽  
pp. 389-410 ◽  
Author(s):  
M. Bennati ◽  
J. Stubbe ◽  
R. G. Griffin
Keyword(s):  
Ribonucleotide Reductase ◽  
Time Domain ◽  
High Frequency ◽  
Time Domain Spectroscopy

scholarly journals High-frequency dielectric relaxation of liquid crystals: THz time-domain spectroscopy of liquid crystal colloids

2006 ◽  
Vol 14 (23) ◽  
pp. 11433 ◽  
Author(s):  
Masahito Oh-e ◽  
Hiroshi Yokoyama ◽  
Mattijs Koeberg ◽  
Euan Hendry ◽  
Mischa Bonn
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Dielectric Relaxation ◽  
Time Domain ◽  
High Frequency ◽  
Time Domain Spectroscopy

scholarly journals Nondestructive Tomographic Imaging of Rust with Rapid THz Time-Domain Spectroscopy

2021 ◽  
Vol 11 (22) ◽  
pp. 10594
Author(s):  
Hwan Sik Kim ◽  
Seung Yeob Baik ◽  
Joong Wook Lee ◽  
Jangsun Kim ◽  
Yeong Hwan Ahn
Keyword(s):  
Time Domain ◽  
High Frequency ◽  
Steel Plate ◽  
Low Frequency ◽  
Frequency Component ◽  
Paint Layer ◽  
Time Domain Spectroscopy ◽  
Frequency Components ◽  
Chemical Solutions ◽  
Time Of Flight Imaging

In this study, we developed a rapid nondestructive tool for testing rust spread in a metal covered by a paint layer by using a THz time-domain spectroscopy system at a speed of 100 Hz/pixel. Time-of-flight imaging helps identify rust formation by exclusively obtaining the reflection from the steel below the paint surface. The use of frequency-selective imaging allows us to manipulate the contrast in rust imaging. Higher contrast is generally obtained when monitoring using the higher frequency component. In addition, we monitored the spread of rust in a steel plate under the influence of two different chemical solutions: NaCl and acid. We found that in the early stages, the decrease in THz reflection was governed by the high-frequency components due to the formation of lepidocrocite, whereas the low-frequency component develops as the proportion of hematite increases with time.

High-Frequency (140-GHz) Time Domain EPR and ENDOR Spectroscopy:  The Tyrosyl Radical−Diiron Cofactor in Ribonucleotide Reductase from Yeast

2001 ◽  
Vol 123 (15) ◽  
pp. 3569-3576 ◽  
Author(s):  
Galit Bar ◽  
Marina Bennati ◽  
Hiep-Hoa T. Nguyen ◽  
Jie Ge ◽  
JoAnne Stubbe ◽  
...  
Keyword(s):  
Ribonucleotide Reductase ◽  
Time Domain ◽  
High Frequency ◽  
Tyrosyl Radical ◽  
Endor Spectroscopy ◽  
Time Domain Epr

High-Frequency Response in Ferroelectric BaSrTiO3Thin Films Studied by Terahertz Time-Domain Spectroscopy

2005 ◽  
Vol 44 (7A) ◽  
pp. 5058-5061 ◽  
Author(s):  
Patrick Mounaix ◽  
Marc Tondusson ◽  
Laurent Sarger ◽  
Dominique Michau ◽  
Vincent Reymond ◽  
...  
Keyword(s):  
Frequency Response ◽  
Time Domain ◽  
High Frequency ◽  
Terahertz Time Domain Spectroscopy ◽  
Time Domain Spectroscopy ◽  
High Frequency Response
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