Experimental Studies of Helicon Double Layers for Future High Power Plasma Propulsion

2006 ◽  
Author(s):  
Roger Walker ◽  
Nicolas Plihon ◽  
Pascal Chabert ◽  
Jean-Luc Raimbault
Keyword(s):  
High Power ◽  
Experimental Studies ◽  
Double Layers ◽  
Plasma Propulsion

scholarly journals High power experimental studies of hybrid photonic band gap accelerator structures

2016 ◽  
Vol 19 (8) ◽  
Author(s):  
JieXi Zhang ◽  
Brian J. Munroe ◽  
Haoran Xu ◽  
Michael A. Shapiro ◽  
Richard J. Temkin
Keyword(s):  
Band Gap ◽  
High Power ◽  
Photonic Band Gap ◽  
Experimental Studies ◽  
Photonic Band

Advances in High Power Beamed Plasma Propulsion

2007 ◽  
Author(s):  
Robert Winglee ◽  
Tim Ziemba ◽  
Louis Giersch ◽  
James Prager ◽  
B Roberson ◽  
...  
Keyword(s):  
High Power ◽  
Plasma Propulsion

Comparative theoretical and experimental studies of two designs of high-power diode lasers

2014 ◽  
Vol 29 (4) ◽  
pp. 045010 ◽  
Author(s):  
K H Hasler ◽  
H Wenzel ◽  
P Crump ◽  
S Knigge ◽  
A Maasdorf ◽  
...  
Keyword(s):  
High Power ◽  
Diode Lasers ◽  
Experimental Studies ◽  
Power Diode

Acoustic experimental studies of high power modes in accelerating structure of Kurchatov SR source

2002 ◽  
Author(s):  
M. Gangeluk ◽  
A. Kadnikov ◽  
Yu. Krylov ◽  
S. Kuznetsov ◽  
V. Moisseev ◽  
...  
Keyword(s):  
High Power ◽  
Experimental Studies ◽  
Accelerating Structure

Tip potential of open-tip glass microelectrodes: theoretical and experimental studies

1983 ◽  
Vol 61 (8) ◽  
pp. 857-869 ◽  
Author(s):  
Simon Gagné ◽  
Réjean Plamondon
Keyword(s):  
Theoretical Model ◽  
Theoretical Analysis ◽  
Mathematical Analysis ◽  
Experimental Studies ◽  
Graphical Analysis ◽  
Double Layers ◽  
Glass Layer ◽  
Mathematical Expressions ◽  
Tip Potential ◽  
Bulk Solutions

A mathematical analysis of the tip potential based on the main physicochemical phenomena occurring at the tip of a glass microelectrode is presented. The factors considered in the theoretical analysis are the diffusion of ions through the open tip, the conduction in the bulk solutions, the longitudinal conduction in the double layers at the glass-electrolyte interfaces, and to some extent, in a hydrated glass layer. A graphical analysis of the mathematical expressions as a function of the resistivity of test solutions is done and the distribution of the source potentials giving rise to the tip potential is studied. The experimental results presented in the paper confirm the validity of the proposed theoretical model. Comments for an improved use of glass microelectrodes in electrophysiological experiments are given throughout the paper.

scholarly journals Switching Action of a Bistable Fluidic Amplifier for Ultrasonic Testing

Fluids ◽  
2021 ◽  
Vol 6 (5) ◽  
pp. 171
Author(s):  
Thorge Schweitzer ◽  
Marla Hörmann ◽  
Benjamin Bühling ◽  
Bernhard Bobusch
Keyword(s):  
High Power ◽  
Ultrasonic Testing ◽  
Experimental Studies ◽  
Theoretical Background ◽  
Control Flow ◽  
Destructive Testing ◽  
Civil Infrastructures ◽  
Switching Action ◽  
Proportional Relationship ◽  
Control Port

Air-coupled ultrasonic testing is widely used in the industry for the non-destructive testing of compound materials. It provides a fast and efficient way to inspect large concrete civil infrastructures for damage that might lead to catastrophic failure. Due to the large penetration depths required for concrete structures, the use of traditional piezoelectric transducer requires high power electric systems. In this study, a novel fluidic transducer based on a bistable fluidic amplifier is investigated. Previous experiments have shown that the switching action of the device produces a high-power broadband ultrasonic signal. This study will provide further insight into the switching behaviour of the fluidic switch. Therefore, parametric CFD simulations based on compressible supersonic RANS simulations were performed, varying the inlet pressure and velocity profiles for the control flow. Switching times are analyzed with different methods, and it was found that these are mostly independent of the slope of the velocity profile at the control port. Furthermore, it was found that an inversely proportional relationship exists between flow velocity in the throat and the switching time. The results agree with the theoretical background established by experimental studies that can be found in the literature.

scholarly journals Experimental studies of porous composites destruction under electron beam high power impact

2016 ◽  
Vol 774 ◽  
pp. 012129
Author(s):  
B A Demidov ◽  
V P Efremov ◽  
Yu G Kalinin ◽  
E D Kazakov ◽  
A A Kurilo ◽  
...  
Keyword(s):  
Electron Beam ◽  
High Power ◽  
Experimental Studies ◽  
Porous Composites
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