scholarly journals ACOUSTICS OF PROCESS AS A FACTOR OF FORMING IN THE COMBUSTION ZONE OF FORMATIONS WITH EXCESS CHARGE

Akustika ◽  
2019 ◽  
Vol 32 ◽  
pp. 88-91
Author(s):  
Anton Pinchuk ◽  
Vladimir Pinchuk
Keyword(s):  
Electric Charge ◽  
Combustion Zone ◽  
Electrical Charge ◽  
Excess Charge ◽  
Mechanism Of Formation ◽  
Burning Zone ◽  
Flame Region ◽  
Continuous Reproduction ◽  
Excitation Conditions

The nature and mechanism of formation and reproduction in time of macroscopic, fluctuational nature of formations with uncompensated electric charge (aquazineutral or AQN-formations) fixed by observations in the burning zone are investigated. With account of characteristic to combustion acoustic manifestations it is shown, that when burning in the reacting medium are necessarily developed instabilities in the distribution of electrical charge over the volume.It is substantiated, that the excitation conditions and the general features of charge instabilities in distribution of charge over volume really determine the mechanism under study as factor jointly providing of both the formation and continuous reproduction of AQN-formations in the combustion zone (in the pre-flame region, first of all).

scholarly journals MULTIDIMENSIONAL GEOMETRICAL MODEL OF THE RENORMALIZED ELECTRICAL CHARGE WITH SPLITTING OFF THE EXTRA COORDINATES

1998 ◽  
Vol 13 (27) ◽  
pp. 2179-2185 ◽  
Author(s):  
V. D. DZHUNUSHALIEV
Keyword(s):  
Black Holes ◽  
Electric Charge ◽  
Geometrical Model ◽  
Electrical Charge ◽  
Wormhole Solution ◽  
Flux Lines ◽  
Klein Theory ◽  
Real Relation ◽  
Null Surfaces ◽  
Kaluza Klein

A geometrical model of electric charge is proposed. This model has "naked" charge screened with a "fur-coat" consisting of virtual wormholes. The 5-D wormhole solution in the Kaluza–Klein theory is the "naked" charge. The splitting off of the 5-D happens on the two spheres (null surfaces) bonding this 5-D wormhole. This allows one to sew two Reissner–Nordström black holes onto it on both sides. The virtual wormholes entrap a part of the electrical flux lines coming into the "naked" charge. This effect essentially changes the charge visible at infinity so that it satisfies the real relation m2<e2.

A New Numerical Model for Electron-Probe Analysis at High Depth Resolution

1996 ◽  
Vol 54 ◽  
pp. 490-491
Author(s):  
P.-F. Staub ◽  
C. Bonnelle ◽  
F. Vergand ◽  
P. Jonnard
Keyword(s):  
Electron Probe ◽  
Surface Segregation ◽  
Depth Distribution ◽  
Computing Time ◽  
Depth Resolution ◽  
Physical Parameters ◽  
Electron Probe Analysis ◽  
Interface Phases ◽  
Excitation Conditions ◽  
High Depth

Characterizing dimensionally and chemically nanometric structures such as surface segregation or interface phases can be performed efficiently using electron probe (EP) techniques at very low excitation conditions, i.e. using small incident energies (0.5<E0<5 keV) and low incident overvoltages (1<U0<1.7). In such extreme conditions, classical analytical EP models are generally pushed to their validity limits in terms of accuracy and physical consistency, and Monte-Carlo simulations are not convenient solutions as routine tools, because of their cost in computing time. In this context, we have developed an intermediate procedure, called IntriX, in which the ionization depth distributions Φ(ρz) are numerically reconstructed by integration of basic macroscopic physical parameters describing the electron beam/matter interaction, all of them being available under pre-established analytical forms. IntriX’s procedure consists in dividing the ionization depth distribution into three separate contributions:

Regarding the mechanism of formation of nonmetallic inclusions conglomerates of system Al2O3-MgO

2019 ◽  
Vol 75 (12) ◽  
pp. 1341-1351
Author(s):  
A. A. Safronov ◽  
V. S. Dub ◽  
V. V. Orlov ◽  
K. L. Kosyrev ◽  
A. S. Loskutov ◽  
...  
Keyword(s):  
Nonmetallic Inclusions ◽  
Mechanism Of Formation

Assessment of ability to varnish turbine oils

2020 ◽  
Vol 06 ◽  
pp. 28-33
Author(s):  
I.V. Mitin ◽  
◽  
I.R. Tatur ◽  
K.U. Smirnov ◽  
A.M. Suloev ◽  
...  
Keyword(s):  
Antioxidant Properties ◽  
Mechanism Of Formation ◽  
Critical Situation ◽  
Antioxidant Content ◽  
Turbine Equipment

The reasons for the formation of varnish deposits of turbine oils are determined. It is shown that the performance of turbine oils is determined by methods of ASTM D7843 (MPC) and ASTM D6971 (RUL) can be assessed, the process of formation of varnish deposits, the level of antioxidant properties, antioxidant content of, amend, and extend the oil change, and to predict critical situation in the operation of turbine equipment. The mechanism of formation of varnish deposits in turbine oils is proposed.

Self-electric field of the electron-photon shower excess charge and the technique for its detection at long distances

2005 ◽  
Vol 11 (3-4) ◽  
pp. 38-47
Author(s):  
I.I. Zalyubovsky ◽  
◽  
V.M. Kartashev ◽  
V.E. Kovtun ◽  
A.V. Lebedev ◽  
...  
Keyword(s):  
Electric Field ◽  
Excess Charge ◽  
Electron Photon

Molecular Characterization of the Surface Excess Charge Layer in Droplets

2020 ◽  
Author(s):  
Victor Kwan ◽  
Styliani Consta
Keyword(s):  
Hydrogen Bonds ◽  
Surface Charge ◽  
Droplet Size ◽  
Chloride Ions ◽  
Total Charge ◽  
Excess Charge ◽  
Surface Excess ◽  
High Concentration ◽  
Dipole Orientation ◽  
Charge Layer

<div>Charged droplets play a central role in native mass spectrometry, atmospheric aerosols and in serving as micro-reactors for accelerating chemical reactions. The surface excess charge layer in droplets has often been associated with distinct chemistry. Using molecular simulations for droplets with Na+ and Cl- ions we have found that this layer is ≈ 1.5−1.7 nm thick and depending on the droplet size it includes 33%-55% of the total number of ions. Here, we examine the effect of droplet size and nature of ions in the structure of the surface excess charge layer by using molecular dynamics. We find that in the presence of simple ions the thickness of the surface excess charge layer is invariant not only with respect to droplet size but also with respect to the nature of the simple ions and it is not sensitive to fine details of different force fields used in our simulations.</div><div> In the presence of macroions the excess surface charge layer may extend to 2.0. nm. For the same droplet size, iodide and model hydronium ions show considerably higher concentration than the sodium and chloride ions. <br></div><div>We also find that differences in the average water dipole orientation in the presence of cations and anions in this layer are reflected in the charge distributions. Within the surface charge layer, the number of hydrogen bonds reduces gradually relative to the droplet interior where the number of hydrogen bonds is on the average 2.9 for droplets of diameter < 4 nm and 3.5 for larger droplets. The decrease in the number of hydrogen bonds from the interior to the surface is less pronounced in larger droplets. In droplets with diameter < 4 nm and high concentration of ions the charge of the ions is not compensated only by the solvent polarization charge but by the total charge that also includes the other free charge. This finding shows exceptions to the commonly made assumption that the solvent compensates the charge of the ions in solvents with very high dielectric constant. The study provides molecular insight into the bi-layer droplet structure assumed in the equilibrium partitioning model of C. Enke and assesses critical assumptions of the Iribarne-Thomson model for the ion-evaporation mechanism. <br></div>

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