Prediction of the stability and electronic properties of carbon nanotori synthesized by a high-voltage pulsed discharge in ethanol vapor

2016 ◽  
Vol 50 (4) ◽  
pp. 502-507 ◽  
Author(s):  
O. E. Glukhova ◽  
V. A. Kondrashov ◽  
V. K. Nevolin ◽  
I. I. Bobrinetsky ◽  
G. V. Savostyanov ◽  
...  
Keyword(s):  
Electronic Properties ◽  
High Voltage ◽  
Ethanol Vapor ◽  
Pulsed Discharge ◽  
The Stability

Study on Selective Leakage Protection System of Mine High Voltage Grid Based on Harmonic Phase Comparison

2015 ◽  
Vol 9 (1) ◽  
pp. 253-262
Author(s):  
Liu Zhongfu ◽  
Zhang Junxing ◽  
Shi Lixin ◽  
Yang Yaning
Keyword(s):  
High Voltage ◽  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Neutral Point ◽  
Arc Suppression Coil ◽  
Zero Sequence ◽  
Harmonic Extraction ◽  
Power Direction ◽  
The Stability

As for the wide application of arc suppression coil to the grounding in neutral point of mine high voltage grid, grid leakage fault rules and harmonic characteristics of the neutral point grounding system through arc suppression coil are analyzed, the selective leakage protection program “zero-sequence voltage starts, fifth harmonics of grid zerosequence voltage and zero-sequence current are extracted for phase comparison” is proposed, and corresponding fifth harmonic extraction circuit and power direction discrimination circuit are designed. The experimental results show that the protective principle applies not only to the neutral point insulated power supply system, but also to the power supply system in which neutral point passes arc suppression coil, which can solve selective leakage protection problems under different neutral grounding ways, improving the reliability of selective leakage and guaranteeing the stability of the action value.

scholarly journals Demulsification of Liquid Membrane Emulsion using High Voltage Glass Coated Electrode in Batch System

2017 ◽  
Vol 10 (1) ◽  
Author(s):  
N. Othman ◽  
A. Ahmad ◽  
M. A. Piramali
Keyword(s):  
High Voltage ◽  
Liquid Membrane ◽  
Alternate Current ◽  
Cost Effective ◽  
Electrical Field ◽  
Electrical Field Strength ◽  
Oil Emulsion ◽  
Internal Phase ◽  
The Stability ◽  
Time Required

Demulsification is one of the key processes in emulsion liquid membrane application. This study involved the effect of electrical field on demulsification of water in oil using batch high voltage demulsifier system. This technique widely used because of its advantages of easy manipulation of applied field direction and strength, offers cost–effective separation and minimal environmental impact combined with mechanical simplicity. Influence of various values of frequency (400–1500 Hz) and voltage was studied experimentally using Alternate Current (AC) High Voltage Demulsifier with insulated electrode. The emulsion consists of kerosene as organic phase, sulfuric acid as internal phase and span 80 (3 and 5 w/v %) as a surfactant. The effect of emulsion preparation such as homogenizer speed, internal phase and surfactant concentrations on the stability of water–in–oil emulsion was also investigated. The results showed that the attractive forces between the water droplets under an electrical field increase by raising the applied electrical field strength. Meanwhile, the time required for the emulsion to separate and coalescence under electrical field increased when the stability of emulsion increased.

scholarly journals Synthesis, stability, and reactivity of mesoionic carbene iridium dihydride complexes

2020 ◽  
Author(s):  
Marta Olivares ◽  
Martin Albrecht
Keyword(s):  
Electronic Properties ◽  
Functional Groups ◽  
Pyridine Ring ◽  
Spectroscopic Analysis ◽  
Pka Values ◽  
Trans Effect ◽  
Structural Assignment ◽  
Wide Range ◽  
Hydride Metal ◽  
The Stability

Pyridyl-triazolylidene ligands with variable donor properties were used as tunable ligands at a dihydride iridium(III) center. The straightforward synthesis of this type of ligand allows for an easy incorporation of electron donating substituents in different positions of the pyridine ring or different functional groups such as esters, alkoxy or aliphatic chains on the C4 position of the triazole heterocycle. The stability of these hydride metal systems allowed these complexes to be used as models for studying the influence of the ligand modifications on hydride reactivity. Spectroscopic analysis provided unambiguous structural assignment of the dihydride system. Modulation of the electronic properties of the wingtip substituents did not appreciably alter the reactivity of the hydrides. Reactivity studies using acids with a wide range of pKa values indicated a correlation between hydride reactivity and acidity and showed exclusive reactivity towards the less shielded hydride trans to the carbene carbon rather than the more shielded hydride trans to the pyridine ring, suggesting that the trans effect is more relevant in these reactions than the NMR spectroscopically deduced hydridic character.

A genomic approach to the stability, elastic, and electronic properties of the MAX phases (Phys. Status Solidi B 8/2014)

2014 ◽  
Vol 251 (8) ◽  
pp. n/a-n/a
Author(s):  
Sitaram Aryal ◽  
Ridwan Sakidja ◽  
Michel W. Barsoum ◽  
Wai-Yim Ching
Keyword(s):  
Electronic Properties ◽  
Max Phases ◽  
Genomic Approach ◽  
The Stability

Defects of monolayer PbI2: a computational study

2021 ◽  
Vol 23 (36) ◽  
pp. 20553-20559
Author(s):  
Han Wang ◽  
Xiao Wang ◽  
Da Li
Keyword(s):  
Dft Calculations ◽  
Electronic Properties ◽  
Systematic Study ◽  
Computational Study ◽  
The Stability ◽  
The Impact

We performed a systematic study on the defects in PbI2 of both 1T and 1H phases by DFT calculations. The stability at the neutral and charged states was calculated. The impact of the defects on the electronic properties was also discussed.

Study of the stability and electronic properties of h-BN nanoribbons with reconstructed edges

2019 ◽  
Vol 727 ◽  
pp. 126-132 ◽  
Author(s):  
Juliana A. Gonçalves ◽  
Ronaldo J.C. Batista ◽  
Raphael Tromer ◽  
Sérgio Azevedo
Keyword(s):  
Electronic Properties ◽  
The Stability

STRUCTURAL AND ELECTRONIC PROPERTIES OF Sr(N3)2 UNDER PRESSURE

2007 ◽  
Vol 06 (03) ◽  
pp. 487-494 ◽  
Author(s):  
FANGFANG DONG ◽  
XINLU CHENG ◽  
SUHONG GE
Keyword(s):  
Electronic Properties ◽  
Polymorphic Transformation ◽  
Structural Changes ◽  
Pressure Variation ◽  
The Other ◽  
Energy Band Gap ◽  
Cell Parameters ◽  
Structural And Electronic Properties ◽  
The Stability ◽  
Ionic Configuration

Structural and electronic properties of Sr ( N 3)2 under pressure up to 120 GPa are studied by means of SIESTA calculation. The pressure–angle as well as the cell parameters relation respect to pressure is employed to study the structural changes under pressure. The obtained N–N bond length at zero pressure is in agreement with the other works. The energy band gap takes on the trend of decreasing below 20 GPa and this trend could result in the reduction of the stability for Sr ( N 3)2 crystal, but at 30 GPa it increases suddenly. And polymorphic transformation is observed. The ionic configuration for Sr ( N 3)2 in the fundamental state is estimated to be Sr +1.200 N -0.200. The charge density of N atom is more sensitive to pressure variation than that of Sr atom.

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