A NONLINEAR MODEL FOR OSCILLATIONS OF A DROPLET IMPACTING A SOLID SURFACE

2020 ◽  
Vol 30 (4) ◽  
pp. 267-286
Author(s):  
Ghobad Amini
Keyword(s):  
Nonlinear Model ◽  
Solid Surface

Microwave resonance method for measuring microliter volumes of free moisture in aviation fuels

2020 ◽  
pp. 49-56
Author(s):  
Vitaly V. Volkov ◽  
Michael A. Suslin ◽  
Jamil U. Dumbolov
Keyword(s):  
Solid Surface ◽  
Free Water ◽  
Resonance Method ◽  
Cavity Resonator ◽  
Maximum Error ◽  
Aviation Fuel ◽  
Fuel Quality ◽  
Microwave Resonance ◽  
Free Moisture ◽  
Microwave Losses

One of the conditions for ensuring the safety of air transport operation is the quality of aviation fuel refueled in aircraft. Fuel quality control is a multi-parameter task that includes monitoring the free moisture content. Regulatory documents establish the content of free water no more than 0.0015% by weight. It is developed a direct electrometric microwave resonance method for controlling free moisture in aviation fuels, which consists in changing the shape of the water drops by pressing them on a solid surface inside a cylindrical cavity resonator. This can dramatically increase dielectric losses. Analytical and experimental analysis of the proposed method is carried out. The control range from 0,5 to 30 μl of absolute volume of moisture in aviation fuels with a maximum error of not morethan 25 % is justified. The sensitivity of the proposed method for monitoring microwave losses in free moisture drops transformed into a thin layer by pressing is an order of magnitude greater than the sensitivity of the method for monitoring microwave losses in moisture drops on a solid surface in a resonator. The proposed method can be used as a basis for the development of devices for monitoring the free moisture of aviation fuels in the conditions of the airfield and laboratory. The direction of development of the method is shown.

Solid-surface electron spectroscopy

1982 ◽  
Vol 136 (1) ◽  
pp. 105 ◽  
Author(s):  
M.V. Gomoyunova
Keyword(s):  
Solid Surface ◽  
Electron Spectroscopy ◽  
Surface Electron

Method of Radiation Monitoring Measurement Adapted to Scanning Speed Using Nonlinear Model Estimation

2018 ◽  
Vol 138 (12) ◽  
pp. 1547-1553
Author(s):  
Yoshitsugu Nakagawa ◽  
Chisato Murakami ◽  
Kazuyuki Mori ◽  
Haruhiko Sato
Keyword(s):  
Nonlinear Model ◽  
Scanning Speed ◽  
Radiation Monitoring ◽  
Model Estimation

Nonlinear Model Reduction by Moment Matching

2017 ◽  
Author(s):  
Giordano Scarciotti ◽  
Alessandro Astolfi
Keyword(s):  
Model Reduction ◽  
Nonlinear Model ◽  
Moment Matching ◽  
Nonlinear Model Reduction
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