Results 271 to 280 of about 506,254 (285)

[Diurnal profile of impulse oscillometric impedance in healthy subjects].

Pneumologie (Stuttgart, Germany), 1997
Diurnal profiles of impulse oscillometry during 24 hours in 3 hour intervals in sitting and lateral lying position have been studied in 20 healthy female and male probands 10-67 years of age. Approximating the profiles by a sine-cosine-function the amplitude of resistance was found up to 3, that of reactance up to 1 hPa/l/s in single cases, preferably ...
J, Vogel, A, Wilke, D, Drews, H J, Smith, J, Arnold   +4 more
openaire   +1 more source

Study on Power Frequency Impedance and Impulse Impedance Characteristics of Grounding Grid Based on CDEGS

2023
Li Tang, Baoming Huang, Hai Jiang, Jiahao Huang, Liangshou Hao, Yinwu Xiong, Zexin Yan, Jiangtao Li   +7 more
openaire   +1 more source

General Formulas for Lightning Impulse Impedance of Horizontal and Vertical Grounding Electrodes

IEEE Transactions on Power Delivery, 2021
Mirko Todorovski, Blagoja Markovski, Leonid Grcev   +2 more
exaly  

Lightning Impulse Impedance and Surface Potential Distribution of 10 kV Distribution Line Tower: Field Test and Simulation

IEEE Transactions on Power Delivery, 2022
Yadong Fan, Huan Huang
exaly  

Analysis, Design, and Implementation of Impulse-Injection-Based Online Grid Impedance Identification With Grid-Tied Converters

IEEE Transactions on Power Electronics, 2020
Zipeng Liu, Jinjun Liu, Zeng Liu
exaly  

The Use of the Impulse Impedance as a Concise Representation of Grounding Electrodes in Lightning Protection Applications

IEEE Transactions on Electromagnetic Compatibility, 2018
Silverio Visacro
exaly  

Measurement of respiratory impedance in healthy calves using the impulse oscillation technique—Physiological and methodological aspects

Veterinary Journal, 1998
P Reinhold, A Langenberg
exaly  

An impulsive impedance meter for electric power systems

2007
LA ROSA MARIO, SACCO BRUNO
openaire   +1 more source

Impulse impedance of the horizontal grounding electrode: comparison of the theoretical antenna model approach and experimental analysis

Journal of Electromagnetic Waves and Applications, 2017
Silvestar Sesnic, Dragan Poljak
exaly  

Preparation of impedance gradients for coupling impulses and shockwaves into solids

2020
MOSER ALEX E, KNIES DAVID L, GRABOWSKI KENNETH S   +2 more
openaire   +1 more source