Results 1 to 10 of about 457,205 (201)

Performance of Practical Grounding Systems under High Impulse Conditions [PDF]

open access: yesEnergies, 2018
This paper investigates the factors affecting the impulse characteristics of purposely built grounding systems. We installed 2 m × 2 m grounding systems in four different sites with different soil resistivity values.
Muhd Shahirad Reffin   +3 more
doaj   +3 more sources

Design of protected circuit models for nonlinear dielectric conductivity measurement system under high-energy impulse breakdown conditions [PDF]

open access: yesAIP Advances, 2019
During high voltage tests for nonlinear dielectric samples, accidental breakdown may occur due to the influence of some objective factors (such as material defectiveness, ambient temperature, air humidity, etc.). Under the high voltage conditions, a high
Chenyang Liu   +5 more
doaj   +2 more sources

Investigative Study of Vertical Electrodes Encased in Concrete/Mortar with Various Sizes of Air Voids

open access: yesEnergies, 2021
Ionisation can occur in the soil when high impulse currents are subjected to grounding systems. This occurrence is generated by a difference in the dielectric strength value between the soil and air voids.
Hanis Hamizah Hizamul-Din   +3 more
doaj   +1 more source

Investigations on the Performance of Various Horizontal Ground Electrodes

open access: yesEnergies, 2021
Experimental work on grounding systems has shown that the characteristics of grounding systems under high impulse conditions are different than those obtained at steady-state conditions.
Hanis Hamizah Hizamul-Din   +4 more
doaj   +1 more source

Effectiveness of Large Soil Grain Sizes in Studying Impulse Characteristics of Soil

open access: yesEnergies, 2022
There have been many published studies analysing the impulse characteristics of soil and various soil properties. Some of these published results are found to be largely different and inconsistent from one study to another. Soil properties may be complex
Muhd Shahirad Reffin   +5 more
doaj   +1 more source

High impulsivity in rats predicts amphetamine conditioned place preference [PDF]

open access: yesPharmacology Biochemistry and Behavior, 2012
Stimulants such as d-amphetamine (AMPH) are used commonly to treat attention-deficit hyperactivity disorder (ADHD), but concerns have been raised regarding the use of AMPH due to its reinforcing and potentially addictive properties. The current study examined if individual differences in impulsive choice predict AMPH-induced hyperactivity and ...
Justin R, Yates   +4 more
openaire   +2 more sources

Examining the effects of productivity shock on nominal prices of the economy in the conditions of banking crisis [PDF]

open access: yesمدلسازی اقتصادسنجی, 2023
According to the conditions of the banking system in recent years, signs of a banking crisis have been observed in Iran's economy, and considering the high share of the banking system in financing Iran's economic activities, in this article, the effects ...
Hossein Abbasi nejad   +2 more
doaj   +1 more source

Higher Impulse Electromyostimulation Contributes to Psychological Satisfaction and Physical Development in Healthy Men

open access: yesMedicina, 2021
Background and Objectives: This study investigated the various impulse effects of whole-body electromyostimulation (WB-EMS) on psychophysiological responses and adaptations.
Kangho Kim, Denny Eun, Yong-Seok Jee
doaj   +1 more source

Impulse Characteristics of Highly Wetted Soils [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2023
It has been well accepted that under high impulse conditions, ionisation process in soil would occur, causing the ground resistance value to fall to a lower value than that obtained at low voltage low current, RDC.
REFFIN Muhd Shahirad   +4 more
doaj  

Investigation of Spherical Electrode Grounding System Under High Impulse Conditions with Different Polarities

open access: yesJournal of Physics: Conference Series, 2021
Abstract There have been many studies in the pasts, which showed that under high impulse conditions, soil ionization process around the electrode would occur, which results in lower resistance and lower transient voltage on the electrode.
HA Hamid   +7 more
openaire   +1 more source

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