Harmonic Index and Harmonic Polynomial on Graph Operations [PDF]
Symmetry, 2018 Some years ago, the harmonic polynomial was introduced to study the harmonic topological index. Here, using this polynomial, we obtain several properties of the harmonic index of many classical symmetric operations of graphs: Cartesian product, corona product, join, Cartesian sum and lexicographic product.
Juan Carlos Hernández-Gómez +3 more
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Harmonic analysis of harmonic functions in the plane [PDF]
Proceedings of the American Mathematical Society, 1976 A continuous function on the complex plane is harmonic if and only if the span of its compositions with entire functions is not dense in the space of continuous functions in the topology of uniform convergence on compact sets.
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Harmonic conjugation in harmonic matroids
Discrete Mathematics, 2009 This paper was finished in 2008.
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The Approximation of Harmonic Functions by Harmonic Polynomials and by Harmonic Rational Functions [PDF]
Bulletin of the American Mathematical Society, 1929 which converges uniformly f or all values of 6. This is of course a general fact, tha t if a given function can be uniformly approximated as closely as desired by a linear combination of other functions, then that function can be expanded in a uniformly convergent series of which each term is a linear combination of those other functions, and ...
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Future work on harmonics : some expert opinions : part II : supraharmonics, standards and measurements [PDF]
, 2014 A workshop on power system harmonics was organized in Stockholm in January 2014. On the agenda was among others a discussion on what are the main issues on harmonics at the moment and in the near future.
Desmet, Jan +29 more
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Future work on harmonics : some expert opinions part I : wind and solar power [PDF]
, 2014 A workshop on power system harmonics was organized in Stockholm in January 2014. On the agenda was among others a discussion on what are the main issues on harmonics at the moment and in the near future.
Desmet, Jan +29 more
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Voltage harmonic reduction for randomly time-varying source characteristics and voltage harmonics
, 2006 This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Brunel University's products or services. Internal or personal use of this material is permitted.
Zobaa, AF
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Design, analysis and implementation of real-time harmonics elimination: A generalised approach
, 2014 © The Institution of Engineering and Technology 2014. It is not a secret that the problem of harmonics and switching frequency can have a dreadful impact on switching power converters.
Nibouche, Mokhtar +2 more
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Magnetic field evaluation around 400 KV underground power cable under harmonics effects [PDF]
, 2022 Power lines or underground power cables generate electromagnetic interaction with other objects near to them. This study evaluates the magnetic field emitted by underground extra high voltage cables. The presented work aims to show a numerical simulation
Ghoneim, Sherif +19 more
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IEEE AccessDecaying DC offset frequently emerges as a major issue in power systems, especially under fault conditions. This leads to a distortion in the current waveform associated with the fault, which could significantly challenge protective and control ...
Mohanraj Bellie Subramani +3 more
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