Tower impulse grounding resistance measurement based on multiple frequency impedance
Tower impulse grounding resistance is important for judging the lightning protection performance of transmission lines. Therefore, it is significant to accurately measure the tower impulse grounding resistance. Existing measurement methods mainly contain
Yihua Dan +5 more
doaj +1 more source
Delay Estimator and Improved Proportionate Multi-Delay Adaptive Filtering Algorithm [PDF]
This paper pertains to speech and acoustic signal processing, and particularly to a determination of echo path delay and operation of echo cancellers. To cancel long echoes, the number of weights in a conventional adaptive filter must be large.
Sakhnov, K. +2 more
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Paramagnetic magnetization signals and curious metastable behaviour in field-cooled magnetization of a single crystal of superconductor 2H-NbSe2 [PDF]
We present here some newer characteristics pertaining to paramagnetic Meissner effect like response in a single crystal of the low Tc superconducting compound 2H-NbSe2 via a detailed study of effects of perturbation on the field-cooled magnetization ...
Balakrishnan, G. +4 more
core +2 more sources
Impulse control disorders: updated review of clinical characteristics and pharmacological management
Impulse control disorders (ICDs) are characterized by urges and behaviors that are excessive and/or harmful to oneself or others and cause significant impairment in social and occupational functioning, as well as legal and financial difficulties.
Jon E Grant +2 more
doaj +1 more source
Air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse [PDF]
This report describes the air breakdown characteristics in plane-plane and sphere gap electrode configuration under lightning impulse. The breakdown in air (spark breakdown) is the transition of a non-sustaining discharge into a self sustaining ...
Rosdi, Hairierosniza
core
Characteristics of Impulse Discharges in Wet Soil
This paper presents the experimental results related to soil ionization and electrical breakdown in a concentric hemispherical electrode system under lightning impulse voltages. Dynamic voltage-current and impedance-time characteristics of soil ionization were measured and analyzed. Also the electrical breakdowns of the soil gap were investigated.
Hoe-Gu Kim, Bok-Hee Lee
openaire +2 more sources
Influence of Pulse Interval on Soil Dispersion Characteristics under Continuous Impulse
Under continuous lightning strikes, the impulse dispersion characteristics of grounding devices more effectively indicate the effectiveness of tower grounding for lightning protection.
CAO, W. +4 more
doaj +1 more source
The combined action of multiple particles and cavitation bubbles can severely damage hydraulic machinery. Combining the Kelvin impulse theory and the results of high-speed photography experiments, this paper researches the dynamic behaviors of a single ...
Xiaoyu Wang +4 more
doaj +1 more source
The observation of the air gap discharge process is the basis of revealing the physical mechanism of gas discharge and establishing the accurate numerical simulation model.
Yaqi Zhang +7 more
doaj +1 more source
Low-frequency phase diagram of irradiated graphene and periodically driven spin-1/2 $XY$ chain
We study the Floquet phase diagram of two-dimensional Dirac materials such as graphene and the one-dimensional (1D) spin-1/2 $XY$ model in a transverse field in the presence of periodic time-varying terms in their Hamiltonians in the low drive frequency (
Mohan, Priyanka +3 more
core +1 more source

