scholarly journals The oxidation study of N,N-diethyl-meta-toluamide in dual frequency ultrasonic reactor

2020 ◽  
Vol 3 (3) ◽  
Author(s):  
Zeynep EREN ◽  
Kevin O'SHEA
Keyword(s):  
Dual Frequency ◽  
Oxidation Study

A High Voltage Electron Microscopy Study of Sub-Oxide Formation in Vanadium

1971 ◽  
Vol 29 ◽  
pp. 212-213
Author(s):  
R. H. Geiss ◽  
R. L. Ladd ◽  
K. R. Lawless
Keyword(s):  
High Vacuum ◽  
Microscopy Study ◽  
Electron Microscopy Study ◽  
Ultra High Vacuum ◽  
Pure Oxygen ◽  
Pressure Oxidation ◽  
High Voltage Electron Microscopy ◽  
Oxidation Study ◽  
Voltage Electron ◽  
Good Agreement

Detailed electron microscope and diffraction studies of the sub-oxides of vanadium have been reported by Cambini and co-workers, and an oxidation study, possibly complicated by carbon and/or nitrogen, has been published by Edington and Smallman. The results reported by these different authors are not in good agreement. For this study, high purity polycrystalline vanadium samples were electrochemically thinned in a dual jet polisher using a solution of 20% H2SO4, 80% CH3OH, and then oxidized in an ion-pumped ultra-high vacuum reactor system using spectroscopically pure oxygen. Samples were oxidized at 350°C and 100μ oxygen pressure for periods of 30,60,90 and 160 minutes. Since our primary interest is in the mechanism of the low pressure oxidation process, the oxidized samples were cooled rapidly and not homogenized. The specimens were then examined in the HVEM at voltages up to 500 kV, the higher voltages being necessary to examine thick sections for which the oxidation behavior was more characteristic of the bulk.

Assessment of GNSS Performance on Dual-Frequency Smartphones

2019 ◽  
Author(s):  
Thorsten Jahn ◽  
Melanie Kaindl ◽  
Ignacio Viciano Semper ◽  
Sophie Damy ◽  
Moisés Navarro-Gallardo ◽  
...  
Keyword(s):  
Dual Frequency

A PORTABLE DUAL FREQUENCY COMB SPECTROMETER FOR ATMOSPHERIC APPLICATIONS

2016 ◽  
Author(s):  
Kevin Cossel ◽  
Nathan Newbury ◽  
Ian Coddington ◽  
Greg Rieker ◽  
Robert Wright ◽  
...  
Keyword(s):  
Frequency Comb ◽  
Dual Frequency
Sign in / Sign up

Export Citation Format

Share Document