Results 71 to 80 of about 44,850 (204)

Wide-band modelling of tower-footing grounding systems based on the impulse response measurement [PDF]

Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2019
The tower footing grounding system is of major importance for analysis of the lightning overvoltages on an overhead transmission line during backflashover and shielding failure.
Jasika Ranko, Mrvić Jovan, Obradović Stefan, Simić Ninoslav   +3 more
doaj  

The characteristics of electronic training collars for dogs [PDF]

, 2013
A wide range of electronic dog training collars (e-collars) is available in the UK, yet there is no means by which purchasers can meaningfully compare their electrical characteristics at the point of sale.
Cooper, J. J., Lines, J. A., van Driel, K.   +2 more
core   +1 more source

Validation of frequency-varying characteristics of soil electrical parameters and their applicability in impulse response

电力工程技术
There is a great difference between the transient response characteristics and the power frequency response characteristics of the grounding device under lightning strike. Its grounding impedance decreases under the action of soil impulse characteristics.
Qirui WANG, Chun LI, Fengrun WANG, Zhihui ZHENG, Tian WU, Hailiang LU   +5 more
doaj   +1 more source

Impulse Generation by an Open Shock Tube [PDF]

, 2008
We perform experimental and numerical studies of a shock tube with an open end. The purpose is to investigate the impulse due to the exhaust of gases through the open end of the tube as a model for a partially filled detonation tube as used in pulse ...
Browne, S. T., Kasahara, J., Liang, Z., Shepherd, J. E.   +3 more
core   +1 more source

Online estimation of wideband output impedance and control parameters of single-phase inverters using pseudo-random perturbation

e-Prime: Advances in Electrical Engineering, Electronics and Energy
The growing deployment of single-phase inverters in residential low-voltage distribution networks poses new challenges to system stability and power quality.
Ian Paul Gerber, Fredrick Mukundi Mwaniki, Hendrik Johannes Vermeulen   +2 more
doaj   +1 more source

Bayesian Time-Domain Ringing Suppression Approach in Impulse Ultrawideband Synthetic Aperture Radar

Remote Sensing
Impulse ultrawideband (UWB) synthetic aperture radar (SAR) combines high-azimuth-range resolution with robust penetration capabilities, making it ideal for applications such as through-wall detection and subsurface imaging.
Xinhao Xu, Wenjie Li, Haibo Tang, Longyong Chen, Chengwei Zhang, Tao Jiang, Jie Liu, Xingdong Liang   +7 more
doaj   +1 more source

VISUALIZATION OF BIOLOGICAL TISSUE IMPEDANCE PARAMETERS

Бюллетень сибирской медицины, 2016
Objective. Investigation the opportunity for measurement of biological tissue impedance to visualize its parameters.Materials and methods. Studies were undertook on the experimental facility, consists of registrating measuring cell, constructed from flat
V. I. Bankov
doaj   +1 more source

A Rapid Impedance Measurement Method Based on Superposed Modulated Square Pulse

Kongzhi Yu Xinxi Jishu, 2013
A new current injection method was presented for impedance measurement to solve the problems in traditional methods, such as long measuring time and inaccuracy of high frequency.
YUE Xiaolong, ZHANG Zhenghua, SHI Hongtao, ZHANG Dong, ZHUO Fang   +4 more
doaj  

Technical and vocational skills (TVS): a means of preventing violence among youth in Nigeria [PDF]

, 2017
Technical and vocational skills are an important tool for reducing violence among youth, especially in Nigeria, who face security challenges due to different kinds of violence.
Ibrahim, Mohammed, Wan Mohamed, Wan Azlinda   +1 more
core  

LED receiver impedance and its effects on LED-LED visible light communications

, 2017
This paper experimentally demonstrates that the AC impedance spectrum of the LED as a photodetector heavily depends on the received optical power, which may cause the impedance mismatch between the LED and the post trans-impedance amplifier.
Huang, Boyang, Li, Shangbin, Xu, Zhengyuan   +2 more
core   +1 more source