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Keyword: Numerical calculation
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Open AccessArticle
12 Pages, 1,442 KB Download PDF

Design and Optimization of a Three Stage Electromechanical Power Unit using Numerical Methods

Advances in Science, Technology and Engineering Systems Journal, Volume 5, Issue 4, Page # 351–362, 2020; DOI: 10.25046/aj050441
Abstract:

The advent of electric vehicles has changed the face of the automobile industry. The drive system properties of vehicles such as eBikes or electric cars differ fundamentally from those of a diesel engine. The lack of a conventional internal combustion engine has made the vehicles considerably silent. Nevertheless, previously hidden sources of vibration and noise…

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(This article belongs to the SP9 (Special Issue on Multidisciplinary Innovation in Engineering Science & Technology 2020) & Section Acoustics (ACO))
Open AccessArticle
5 Pages, 629 KB Download PDF

Approximate method of analysis of log-periodic antennas with in-phase currents

Advances in Science, Technology and Engineering Systems Journal, Volume 3, Issue 1, Page # 239–243, 2018; DOI: 10.25046/aj030129
Abstract:

Log-periodic antennas have high electrical characteristics over a wide frequency range. The large length of the antennas is their significant disadvantage caused by the fact that each active region consisting of several radiators operates in a narrow frequency range. To extend this range, it is proposed to use radiators with concentrated capacitive loads, providing in-phase…

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(This article belongs to the SP4 (Special issue on Advancement in Engineering Technology 2017-18) & Section Telecommunications (TEL))

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