Propagation of high‐intensity impulsive sounds in air generated by the wire explosion. (Transition of wave form and frequency spectrum.)

1978 ◽  
Vol 64 (S1) ◽  
pp. S13-S14
Author(s):  
Y. Watanabe ◽  
Y. Urabe
Keyword(s):  
Frequency Spectrum ◽  
High Intensity ◽  
Wave Form ◽  
Wire Explosion ◽  
The Wire

Copper Nanoparticle Synthesis By The Wire Explosion Technique

2009 ◽  
Author(s):  
Y. S. Lee ◽  
W. H. Tay ◽  
S. L. Yap ◽  
C. S. Wong ◽  
Z. Ahmad ◽  
...  
Keyword(s):  
Nanoparticle Synthesis ◽  
Copper Nanoparticle ◽  
Wire Explosion ◽  
The Wire

Effect of Ambient Gas on the Particle Size of Copper Nanopowder Prepared By the Wire Explosion Technique

2010 ◽  
Author(s):  
Y. S. Lee ◽  
S. L. Yap ◽  
C. S. Wong ◽  
A. K. Yahya ◽  
Shah Alam
Keyword(s):  
Particle Size ◽  
Wire Explosion ◽  
Ambient Gas ◽  
The Wire

Stratification dynamics and the development of electrothermal instability at the wire explosion

2013 ◽  
Vol 58 (8) ◽  
pp. 1129-1137 ◽  
Author(s):  
R. B. Baksht ◽  
S. I. Tkachenko ◽  
V. M. Romanova ◽  
A. R. Mingaleev ◽  
V. I. Oreshkin ◽  
...  
Keyword(s):  
Wire Explosion ◽  
The Wire

Observation of the partial reheating of the metallic vapor during the wire explosion process for nanoparticle synthesis

2014 ◽  
Vol 104 (22) ◽  
pp. 223108 ◽  
Author(s):  
B. Bora ◽  
S. S. Kausik ◽  
C. S. Wong ◽  
O. H. Chin ◽  
S. L. Yap ◽  
...  
Keyword(s):  
Nanoparticle Synthesis ◽  
Wire Explosion ◽  
Explosion Process ◽  
The Wire ◽  
Metallic Vapor

Characteristics of Temporal Wave-form and Frequency Spectrum of Broad-band Laser Pulse Stacked by Chirped Pulses

2010 ◽  
Vol 39 (6) ◽  
pp. 1070-1077
Author(s):  
王友文 WANG You-wen ◽  
陈列尊 CHEN Lie-zun ◽  
游开明 YOU Kai-ming ◽  
陆世专 LU Shi-zhuan
Keyword(s):  
Laser Pulse ◽  
Frequency Spectrum ◽  
Broad Band ◽  
Wave Form ◽  
Chirped Pulses

scholarly journals ELECTRICAL STUDIES ON THE COMPOUND EYE OF LIGIA OCCIDENTALIS DANA (CRUSTACEA: ISOPODA)

1954 ◽  
Vol 37 (6) ◽  
pp. 825-49 ◽  
Author(s):  
Philip Ruck ◽  
Theodore L. Jahn
Keyword(s):  
High Intensity ◽  
Light Adaptation ◽  
Compound Eye ◽  
Light Stimulus ◽  
Reference Electrode ◽  
Cell Types ◽  
Wave Form ◽  
Active Electrode ◽  
Flicker Fusion Frequency ◽  
High Intensity Light

The ERG of the compound eye in freshly collected Ligia occidentalis, in response to high intensity light flashes of ⅛ second or longer duration, begins with a negative on-effect quickly followed by an early positive deflection, rapidly returns to the baseline during illumination, and ends with a positive off-effect. As the stimulus intensity is decreased the early positivity progressively decreases and the rapid return to the baseline is replaced by a slowing decline of the negative on-effect. Responses were recorded with one active electrode subcorneally situated in the illuminated eye, the reference electrode in the dark eye. The dark-adapted eye shows a facilitation of the amplitude and rates of rise and fall of the on-effect to a brief, high intensity light stimulus. This facilitation may persist for more than 2 minutes. Following light adaptation under conditions in which the human eye loses sensitivity by a factor of almost 40,000 the Ligia eye loses sensitivity by a factor of only 3. The flicker fusion frequency of the ERG may be as high as 120/second with a corneal illumination of 15,000 foot-candles. Bleeding an otherwise intact animal very rapidly results in a decline of amplitude, change of wave form, and loss of facilitation in the ERG. When the eye is deganglionated without bleeding the animal the isolated retina responds in the same manner as the intact eye. Histological examination of the Ligia receptor layer showed that each ommatidium contains three different retinula cell types, each of which may be responsible for a different aspect of the ERG.

A New High Intensity Grid Cap for RCA-EMU-3 Electron Microscopes

1968 ◽  
Vol 26 ◽  
pp. 316-317
Author(s):  
George Christov ◽  
Bolivar J. Lloyd
Keyword(s):  
Electron Beam ◽  
Electron Microscope ◽  
High Voltage ◽  
High Intensity ◽  
Electron Gun ◽  
Tungsten Filament ◽  
Fluorescent Screen ◽  
Electron Microscopes ◽  
Pass Through ◽  
Ground Potential

A new high intensity grid cap has been designed for the RCA-EMU-3 electron microscope. Various parameters of the new grid cap were investigated to determine its characteristics. The increase in illumination produced provides ease of focusing on the fluorescent screen at magnifications from 1500 to 50,000 times using an accelerating voltage of 50 KV.The EMU-3 type electron gun assembly consists of a V-shaped tungsten filament for a cathode with a thin metal threaded cathode shield and an anode with a central aperture to permit the beam to course the length of the column. The cathode shield is negatively biased at a potential of several hundred volts with respect to the filament. The electron beam is formed by electrons emitted from the tip of the filament which pass through an aperture of 0.1 inch diameter in the cap and then it is accelerated by the negative high voltage through a 0.625 inch diameter aperture in the anode which is at ground potential.

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