Potential of Glow-Discharge Flow Measurement in Hypersonic Low-Density Flows

AIAA Journal ◽  
2020 ◽  
Vol 58 (1) ◽  
pp. 291-303 ◽  
Author(s):  
H. Itoh ◽  
M. Mizoguchi
Keyword(s):  
Glow Discharge ◽  
Flow Measurement ◽  
Low Density ◽  
Discharge Flow

Glow-discharge flow visualization in low-density free jets

1973 ◽  
Vol 10 (10) ◽  
pp. 658-662 ◽  
Author(s):  
S. S. FISHER ◽  
D. BHARATHAN
Keyword(s):  
Glow Discharge ◽  
Flow Visualization ◽  
Low Density ◽  
Free Jets ◽  
Discharge Flow

Trapped ions and the shielding of dust particles in low-density non-equilibrium plasma of glow discharge

2009 ◽  
Vol 42 (21) ◽  
pp. 214027 ◽  
Author(s):  
Gennady Sukhinin ◽  
Alexander Fedoseev ◽  
Sergei Antipov ◽  
Oleg Petrov ◽  
Vladimir Fortov
Keyword(s):  
Glow Discharge ◽  
Trapped Ions ◽  
Dust Particles ◽  
Low Density ◽  
Equilibrium Plasma ◽  
Non Equilibrium

scholarly journals High frequency AC electric glow discharge visualization technology and application in big diameter hypersonic low-density wind tunnel

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Wanqiu Jiang ◽  
Huacheng Qiu ◽  
Yanguang Yang ◽  
Yilei Shi ◽  
Jie Wang ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Glow Discharge ◽  
Flow Field ◽  
High Frequency ◽  
Simulation Analysis ◽  
Low Density ◽  
Rarefied Flow ◽  
Element Simulation ◽  
Visualization Technology ◽  
High Frequency Ac

AbstractIn order to visualize the rarefied flow field in a Φ1m hypersonic low-density wind tunnel, an electric glow discharge technique based on high frequency excited power has been developed. Firstly, finite element simulation analysis has been carried out, and it is concluded that the breakdown voltage can be reduced by using high frequency power supply; then an electric glow discharge apparatus has been fabricated, and the discharge images were compared with simulations; besides, a clear flow field around HB-1 standard model has been observed using this technology; finally, the influence of glow discharge on the flow field, as well as the differences between direct current and high frequency electric glow discharges is discussed at the end of this paper.

A Laser Thomson Scattering System for Low Density Glow Discharge Plasmas

2001 ◽  
Vol 40 (Part 1, No. 3A) ◽  
pp. 1465-1466 ◽  
Author(s):  
Mansour A. Mansour ElSabbagh ◽  
Hiroki Koyama ◽  
Mark D. Bowden ◽  
Kiichiro Uchino ◽  
Katsunori Muraoka
Keyword(s):  
Glow Discharge ◽  
Thomson Scattering ◽  
Low Density ◽  
Scattering System ◽  
Discharge Plasmas

Spin trapping of radicals produced by glow discharge on low-density polyethylene

Polymer ◽  
1983 ◽  
Vol 24 (12) ◽  
pp. 1581-1584 ◽  
Author(s):  
S. Poulin-Dandurand ◽  
M.R. Wertheimer ◽  
A. Yelon
Keyword(s):  
Glow Discharge ◽  
Spin Trapping ◽  
Low Density Polyethylene ◽  
Low Density

Enhancement of wettability in low density polyethylene films using low pressure glow discharge N2 plasma

2007 ◽  
Vol 45 (17) ◽  
pp. 2390-2399 ◽  
Author(s):  
Rosa M. Sanchis ◽  
Oscar Calvo ◽  
Lourdes Sánchez ◽  
David García ◽  
Rafael Balart
Keyword(s):  
Glow Discharge ◽  
Low Pressure ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Polyethylene Films ◽  
Pressure Glow Discharge ◽  
N2 Plasma

Application of Improved Voltage Compensation in the SEM to Imaging of Organic Materials

1973 ◽  
Vol 31 ◽  
pp. 444-445
Author(s):  
P.J. Killingworth ◽  
M. Warren
Keyword(s):  
Electron Beam ◽  
Organic Materials ◽  
Operating Parameters ◽  
Low Density ◽  
Beam Diameter ◽  
Incident Electron Beam ◽  
Specimen Material ◽  
Voltage Compensation ◽  
Selection Of ◽  
Scanning Electron

Ultimate resolution in the scanning electron microscope is determined not only by the diameter of the incident electron beam, but by interaction of that beam with the specimen material. Generally, while minimum beam diameter diminishes with increasing voltage, due to the reduced effect of aberration component and magnetic interference, the excited volume within the sample increases with electron energy. Thus, for any given material and imaging signal, there is an optimum volt age to achieve best resolution.In the case of organic materials, which are in general of low density and electric ally non-conducting; and may in addition be susceptible to radiation and heat damage, the selection of correct operating parameters is extremely critical and is achiev ed by interative adjustment.

Quantitative defect studies in semiconductor TEM samples prepared by low angle ion milling

1995 ◽  
Vol 53 ◽  
pp. 512-513
Author(s):  
L. Mulestagno ◽  
J.C. Holzer ◽  
P. Fraundorf
Keyword(s):  
Sample Preparation ◽  
Milling Time ◽  
High Density ◽  
Low Density ◽  
Ion Milling ◽  
High Quality ◽  
Variable Angle ◽  
Major Disadvantage ◽  
Induced Defects

Due to the wealth of information, both analytical and structural that can be obtained from it TEM always has been a favorite tool for the analysis of process-induced defects in semiconductor wafers. The only major disadvantage has always been, that the volume under study in the TEM is relatively small, making it difficult to locate low density defects, and sample preparation is a somewhat lengthy procedure. This problem has been somewhat alleviated by the availability of efficient low angle milling.Using a PIPS® variable angle ion -mill, manufactured by Gatan, we have been consistently obtaining planar specimens with a high quality thin area in excess of 5 × 104 μm2 in about half an hour (milling time), which has made it possible to locate defects at lower densities, or, for defects of relatively high density, obtain information which is statistically more significant (table 1).

Intralysosomal Accumulation of Colloidal Gold-Low Density Lipoprotein Conjugates in Chloroquine-Treated Fibroblasts

1985 ◽  
Vol 43 ◽  
pp. 546-547 ◽  
Author(s):  
Dean A. Handley ◽  
Cynthia M. Arbeeny ◽  
Larry D. Witte
Keyword(s):  
Colloidal Gold ◽  
Cultured Cells ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Coated Vesicle ◽  
Low Density ◽  
Cholesterol Esters ◽  
Cultured Fibroblasts ◽  
Surface Receptors ◽  
Ldl Particles

Low density lipoproteins (LDL) are the major cholesterol carrying particles in the blood. Using cultured cells, it has been shown that LDL particles interact with specific surface receptors and are internalized via a coated pit-coated vesicle pathway for lysosomal catabolism. This (Pathway has been visualized using LDL labeled to ferritin or colloidal gold. It is now recognized that certain lysomotropic agents, such as chloroquine, inhibit lysosomal enzymes that degrade protein and cholesterol esters. By interrupting cholesterol ester hydrolysis, chloroquine treatment results in lysosomal accumulation of cholesterol esters from internalized LDL. Using LDL conjugated to colloidal gold, we have examined the ultrastructural effects of chloroquine on lipoprotein uptake by normal cultured fibroblasts.

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