Experimental characterisation of active and non‐active harmonic power flow of AC rolling stock and interaction with the supply network by Andrea Mariscotti

“…Abstract In AC electrified railways, there is a significant exchange of power at fundamental and harmonics in quite dynamic conditions. Harmonic patterns of AC rolling stock and railway networks are analysed in terms of active and non‐active power flow, relating it to the characteristic of the network and to operating conditions, synthesised in the fundamental current intensity and speed. …”
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Analytic Solution for Nonlinear Multimode Beam Vibration Using a Modified Harmonic Balance Approach and Vieta’s Substitution by Y. Y. Lee

“…This paper presents a modified harmonic balance solution method incorporated with Vieta’s substitution technique for nonlinear multimode damped beam vibration. …”
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The Elliptic Harmonic Balance Method for the Performance Analysis of a Two-Stage Vibration Isolation System with Geometric Nonlinearity by Weilei Wu, Bin Tang

“…This study develops a modified elliptic harmonic balance method (EHBM) and uses it to solve the force and displacement transmissibility of a two-stage geometrically nonlinear vibration isolation system. …”
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Carrier-envelope-phase characterization of ultrafast mid-infrared laser pulses through harmonic generation and interference in argon by Claudia Gollner, Valentina Shumakova, Jacob Barker, Audrius Pugžlys, Andrius Baltuška, Pavel Polynkin

“…We show that this seemingly irreversible loss of phase can be recovered, and that the complete information needed for the phase correction is contained in the harmonic spectra itself. The optical phases of the intense driver pulse and its harmonics, as fragile as they appear to be against even weak disturbances, evolve deterministically during highly nonlinear propagation through the extended ionization region.…”
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A New Grazing–Vegetation Tradeoff and Coordination Indicator: The Grazing Intensity and Vegetation Cover Harmonization Index (GVCI) by Qinyi Huang, Jianjun Chen, Xinhong Li, Hucheng Li, Zizhen Chen, Yanping Lan, Ming Ling, Haotian You, Xiaowen Han

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Simulation-based probabilistic-harmonic load flow for the study of DERs integration in a low-voltage distribution network by Cristian Cadena-Zarate, Juan Caballero-Peña, German Osma-Pinto

Subjects: “…harmonic…”
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Improved Switching Strategy for Selective Harmonic Elimination in DC-AC Signal Generation via Pulse-Width Modulation by Francisco Palacios-Quiñonero, Jesus Vicente-Rodrigo, Maria A. Molina-Hernández, Hamid Reza Karimi

“…This approach leads to particularly simple Walsh series representations, introduces a remarkable computational simplification, and achieves excellent results in reducing the harmonic distortion.…”
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A novel dynamic vibration absorber for vibration control of piping systems under multi-frequency harmonic excitations by Lihang Yin, Wei Xu, Zechao Hu, Liantao Xiao

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Second harmonic generation from bound-state in the continuum-hosted few-layers van der Waals metasurface by Muhammad Naseer, Begum Azra, Su Zhaoxian, Huang Lingling

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Investigation on steady-state temperature field by a novel laminated tooth for multi-tooth in harmonic gear drive by Wang Shuyan, Chen Hongwei, Zhang Xinyi, Guo Shuming, Lin Zebin, Chen Bingkui

Subjects: “…Harmonic gear…”
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A three-phase current source inverter with third harmonic injection for grid-connected renewable power sources by Ninković Predrag, Janda Žarko, Pejović Predrag

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Harmonization of the Long-term PM2.5 Carbon Data from the CSN Sites in New York State by Hesham Hassan, James Schwab, Jie Zhang

“…An adjustment criterion that harmonizes the data from the beginning of the sampling period to the present is obtained. …”
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Harmonic feature of 27.5 kV traction power system in a Chinese high‐speed railway by Yadong Fan, Ding Hu, Wen Chen, Liming Gao, Jianping Wang, Mi Zhou, Jianguo Wang, Chang He

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Design of Low-Cost Full W-Band 8th Harmonic Mixers for Frequency Extension of Spectrum Analyzer by Jian Guo, Kaiyi Zang, Zihan Zhang, Liang Zhao, Jie Xu, Zhengbin Xu

“…High-order harmonic mixer is popular for frequency extension of spectrum analyzer (SA) from microwave to millimeter-wave or even terahertz band. …”
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Terahertz Harmonic Operation of Microwave Fresnel Zone Plate Lens and Antenna: Frequency Filtering and Space Resolution Properties by Hristo D. Hristov

“…This paper examines the binary Fresnel zone plate (FZP) lens frequency-harmonic and space-resolution focusing, and its application as a FZP lens antenna. …”
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Virtual bronchoscopic navigation and guided radial endobronchial ultrasound for peripheral pulmonary lesions: harmonizing modalities to optimize accuracy by Parul Mrigpuri, Sidharth Raj Yadav, Divyendu Sharma, Sonam Spalgais, Vidushi Rathi, Nitin Goel, Balakrishnan Menon, Raj Kumar

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Spatial Tooth Profile Design of Triple-circular-arc Harmonic Gears and Finite Element Simulation of Torsional Stiffness by Xing Jingzhong, Chen Liang, Chen Xiaoxia, Yao Yunpeng

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Approximate Super- and Sub-harmonic Response of a Multi-DOFs System with Local Cubic Nonlinearities under Resonance by Yang CaiJin

“…The purpose of this paper is to approximate the nonlinear response of system at super/sub harmonic resonance. For many situations, single resonance mode is often observed to be leading as system enters into super/sub harmonic resonance. …”
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Design and Implementation of Hybrid GA-PSO-Based Harmonic Mitigation Technique for Modified Packed U-Cell Inverters by Hasan Iqbal, Arif Sarwat

“…Most of the available harmonic mitigation techniques, that is, passive filtering and individual optimization techniques, which include GA and PSO, are susceptible to a variety of shortcomings regarding their inherent complexity and inefficiency; hence, finding an appropriate convergence may be quite hard. …”
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A Cable Defect Assessment Method Based on a Mixed-Domain Multi-Feature Set of Overall Harmonic Signals by Ruidong Wang, Ruzheng Pan

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