scholarly journals Velocity derivative skewness and its budget in non-equilibrium time-reversed turbulence

AIP Advances ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 035207
Author(s):  
Feng Liu ◽  
Yangwei Liu
Keyword(s):  
Equilibrium Time ◽  
Velocity Derivative ◽  
Non Equilibrium

Plasma activation of N2, CH4 and CO2: an assessment of the vibrational non-equilibrium time window

2020 ◽  
Vol 29 (11) ◽  
pp. 115001
Author(s):  
A W van de Steeg ◽  
T Butterworth ◽  
D C M van den Bekerom ◽  
A F Silva ◽  
M C M van de Sanden ◽  
...  
Keyword(s):  
Time Window ◽  
Equilibrium Time ◽  
Plasma Activation ◽  
Non Equilibrium

scholarly journals The role of velocity derivative skewness in understanding non-equilibrium turbulence

2020 ◽  
Vol 29 (11) ◽  
pp. 114702
Author(s):  
Feng Liu ◽  
Le Fang ◽  
Liang Shao
Keyword(s):  
Velocity Derivative ◽  
Non Equilibrium

Application of analytical electron microscopy to studies of equilibrium and non-equilibrium segregation in materials

1992 ◽  
Vol 50 (2) ◽  
pp. 1214-1215
Author(s):  
Edward A Kenik
Keyword(s):  
Electron Microscopy ◽  
Analytical Electron Microscopy ◽  
Extended Defects ◽  
Probe Diameter ◽  
Specimen Holder ◽  
Analytical Electron ◽  
Scanning Transmission ◽  
Solute Atoms ◽  
Equilibrium Segregation ◽  
Non Equilibrium

Segregation of solute atoms to grain boundaries, dislocations, and other extended defects can occur under thermal equilibrium or non-equilibrium conditions, such as quenching, irradiation, or precipitation. Generally, equilibrium segregation is narrow (near monolayer coverage at planar defects), whereas non-equilibrium segregation exhibits profiles of larger spatial extent, associated with diffusion of point defects or solute atoms. Analytical electron microscopy provides tools both to measure the segregation and to characterize the defect at which the segregation occurs. This is especially true of instruments that can achieve fine (<2 nm width), high current probes and as such, provide high spatial resolution analysis and characterization capability. Analysis was performed in a Philips EM400T/FEG operated in the scanning transmission mode with a probe diameter of <2 nm (FWTM). The instrument is equipped with EDAX 9100/70 energy dispersive X-ray spectrometry (EDXS) and Gatan 666 parallel detection electron energy loss spectrometry (PEELS) systems. A double-tilt, liquid-nitrogen-cooled specimen holder was employed for microanalysis in order to minimize contamination under the focussed spot.

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