Interferometric determination of the sound speed in magnetized plasma using time‐delayed correlation techniques

1981 ◽  
Vol 39 (10) ◽  
pp. 795-797 ◽  
Author(s):  
A. R. Jacobson
Keyword(s):  
Sound Speed ◽  
Magnetized Plasma ◽  
Correlation Techniques

Electromagnetic fluctuations from energetic particles in plasmas

1988 ◽  
Vol 40 (3) ◽  
pp. 407-417 ◽  
Author(s):  
Cheng Chu ◽  
J. L. Sperling
Keyword(s):  
Distribution Function ◽  
Velocity Distribution ◽  
Charged Particles ◽  
Velocity Distribution Function ◽  
Black Body ◽  
Black Body Radiation ◽  
Specific Model ◽  
Magnetized Plasma ◽  
Plasma Power ◽  
Correlation Techniques

Electromagnetic fluctuations, induced by energetic charged particles, are calculated using correlation techniques for a uniform magnetized plasma. Power emission in the ion-cyclotron range of frequencies (ICRF) is calculated for a specific model of velocity distribution function. The emissive spectra are distinct from that of the black-body radiation and have features that are consistent with experimental observation.

Determination of sound speed in biological tissues based on frequency analysis of pulse response

1992 ◽  
Vol 92 (3) ◽  
pp. 1564-1568 ◽  
Author(s):  
Hiroyuki Hachiya ◽  
Shigeo Ohtsuki ◽  
Motonao Tanaka ◽  
Floyd Dunn
Keyword(s):  
Frequency Analysis ◽  
Sound Speed ◽  
Biological Tissues ◽  
Pulse Response

scholarly journals Molecular surface recognition: determination of geometric fit between proteins and their ligands by correlation techniques.

1992 ◽  
Vol 89 (6) ◽  
pp. 2195-2199 ◽  
Author(s):  
E. Katchalski-Katzir ◽  
I. Shariv ◽  
M. Eisenstein ◽  
A. A. Friesem ◽  
C. Aflalo ◽  
...  
Keyword(s):  
Molecular Surface ◽  
Surface Recognition ◽  
Correlation Techniques

scholarly journals Determination of the averaged charge-to-mass ratio of the heavy charged constituents of a magnetoplasma using whistler wave measurements

2010 ◽  
Vol 28 (12) ◽  
pp. 2237-2247 ◽  
Author(s):  
C. Krafft ◽  
B. V. Lundin
Keyword(s):  
Plasma Frequency ◽  
Magnetized Plasma ◽  
Charged Dust ◽  
Mass Ratio ◽  
Cutoff Frequencies ◽  
Wave Measurements ◽  
Ion Plasma ◽  
Light Ions ◽  
Spectrometer Data

Abstract. In a cold magnetized plasma with two light ions of comparable gyrofrequencies and any species of heavy ions and/or charged dust particulates, a technique is developed to recover the relative charge density of the heavy plasma population and to estimate its effective averaged charge-to-mass ratio. Such results can be obtained without using mass spectrometer data but only the measurements of the ion plasma frequency, the electron gyro- and plasma frequencies as well as the two highest ion cutoff frequencies.

scholarly journals ЗОВНІШНЯ БАЛІСТИКА СНАРЯДУ БМ1 ВИПУЩЕНОГО З Т-12 (МТ-12)

World Science ◽  
2020 ◽  
Vol 1 (1(53)) ◽  
pp. 23-29
Author(s):  
Величко Лев Дмитрович ◽  
Горчинський Ігор Володимирович ◽  
Сорокатий Микола Іванович
Keyword(s):  
Atmospheric Pressure ◽  
Sound Speed ◽  
Functional Dependence ◽  
Resistance Force ◽  
Kinematic Parameters ◽  
Muzzle Velocity ◽  
Velocity Magnitude ◽  
Air Resistance ◽  
The Mathematical Model

The magnitudes of the kinematic parameters of projectiles motion in the air depends on deterministic (form of projectile, its mass, temperature of air and charge, atmospheric pressure, derivation) and nondeterministic (muzzle velocity, magnitude and direction of wind velocity) values. During the projectile movement, its weight and frontal air resistance force have a determining influence on its dynamics. In the article it is investigated proposed by authors the mathematical model of determination of the functional dependence of the magnitude of the frontal air resistance force of the projectile’s motion on its velocity, mass and caliber, geometric characteristics, temperature and density of air, atmospheric pressure, sound speed in air. Since the trajectory of movement of the BM1 projectile released from the T-12 (MT-12) is canopy, it is assumed that during the projectile’s flight the air temperature and atmospheric pressure are unchanged and equal to their value at the point of the gun.

Variational determination of the coefficient of sound dispersion in binary gas mixtures

1988 ◽  
Vol 188 ◽  
pp. 205-221 ◽  
Author(s):  
P. Riesco-Chueca ◽  
J. Fernandez De La Mora
Keyword(s):  
Sound Speed ◽  
Inert Gases ◽  
Enskog Theory ◽  
Boltzmann Equations ◽  
Jones Potential ◽  
Lennard Jones ◽  
Exact Determination ◽  
Sound Dispersion ◽  
Zero Frequency

The propagation of plane linear acoustic wave in a mixture of inert gases is considered by means of a variational formulation of the Boltzmann equations, through which the sound speed c is expressed with errors of order ε2 in terms of trial functions determined with errors of order ε. This feature allows the exact determination of the coefficient of sound dispersion d2 ≡ [dc/dω2] at zero frequency (ω = 0), in terms of trial functions known from the Chapman—Enskog theory. Explicit results for d2 are given for all combinations of noble gases from He to Xe, assumed to interact through the Lennard—Jones potential. Comparison with previous approximate descriptions and with experiments is made.

On the determination of the sound speed and a damping coefficient by two measurements

2005 ◽  
Vol 84 (10) ◽  
pp. 1025-1039 ◽  
Author(s):  
V. G. Romanov ◽  
M. Yamamoto
Keyword(s):  
Sound Speed ◽  
Damping Coefficient
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