Investigating the Effect of Winding Structures in Dynamic Wireless Power Transmission in Electric Vehicle Applications by M. Rafinejad, A. Ghayebloo

“…In this paper, the winding function method is used for more accurate modeling of coils in terms of spatial harmonics and calculation of their self and mutual inductances by changing the location of the vehicle. …”
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Stator and Rotor Faults Diagnosis of Squirrel Cage Motor Based on Fundamental Component Extraction Method by Guoqing An, Hongru Li

“…However, in the case of interturn short circuit in stator, the traditional symmetrical component method has lost the precondition due to the harmonics and noise; the negative sequence component (NSC) is hard to be obtained accurately. …”
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Sliding-Mode Control of a Dc/Dc Postfilter for Ripple Reduction and Efficiency Improvement in POL Applications by S. I. Serna-Garcés, R. E. Jiménez, C. A. Ramos-Paja

“…Finally, the proposed solution significantly reduces the current harmonics injected into the load, and at the same time, it improves the overall electrical efficiency. …”
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Power Quality Improvement by Unified Power Quality Conditioner Based on CSC Topology Using Synchronous Reference Frame Theory by Rajasekaran Dharmalingam, Subhransu Sekhar Dash, Karthikrajan Senthilnathan, Arun Bhaskar Mayilvaganan, Subramani Chinnamuthu

“…UPQC is used to mitigate the power quality problems like harmonics and sag. The shunt and series active filter performs the simultaneous elimination of current and voltage problems. …”
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Model-Corrected Microwave Imaging through Periodic Wall Structures by Paul C. Chang, Robert J. Burkholder, John L. Volakis

“…In addition to propagation delays caused by the wall, it is shown that the structural periodicity induces high-order space harmonics leading to other ghost artifacts in the through-wall image. …”
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Failure Diagnosis for Demagnetization in Interior Permanent Magnet Synchronous Motors by Takeo Ishikawa, Naoto Igarashi, Nobuyuki Kurita

“…The back-EMF is proportional to permanent magnet volume, and there is no difference in the demagnetization in the radial direction and in the axial direction. Even harmonics and subharmonics of flux density at the teeth tip could be useful for diagnosis if a search coil is installed there. …”
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Experimental Study on the Vibration of an Overhung Rotor with a Propagating Transverse Crack by S.A. Adewusi, B.O. Al-Bedoor

“…The steady state results showed that the propagating crack produces changes in vibration amplitudes of 1X and 2X vibration harmonics and excites 3X harmonic just before fracture. …”
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Improved Power Control Using Optimal Adjustable Coefficients for Three-Phase Photovoltaic Inverter under Unbalanced Grid Voltage by Qianggang Wang, Niancheng Zhou, Xiaoxuan Lou, Xu Chen

“…Three coefficients are brought in to tune the output current reference within the required limits of the power quality (the current harmonic distortion, the AC current peak, the power fluctuation, and the DC voltage fluctuation). …”
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Design and analysis of electromagnetic and mechanical structure of ultra-high-speed slotted solid rotor induction motor by Jiawei Yi, Zhihao Zhu

“…Then, by constructing a two-dimensional finite element model, the slot matching scheme and coil pitch are optimized, and the influence of different slot matching scheme and coil pitch on the output torque and harmonics of the motor is compared. Then, the influence of rotor slot size on electromagnetic and mechanical properties of the motor is described in detail. …”
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Compensation of active filter using p-q theory in photovoltaic systems by Farzane Soleimani Rudi, Mohammad Naser Hashemnia

“…This work proposes an active shunt filter design for grid-connected solar systems, utilizing the p-q instantaneous power theory technique to minimize grid harmonics and reduce reactive power. As a result, the total harmonic distortion (THD) is decreased, and the power quality of the network is improved. …”
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Performance Analysis of Grid-Connected Distributed Generation System Integrating a Hybrid Wind-PV Farm Using UPQC by Tongfei Lei, Saleem Riaz, Noor Zanib, Munira Batool, Feng Pan, Shaoguo Zhang

“…Along with providing active power (AP) to the utility grid, Wind-PV-UPQC improves PQ indicators, for example, voltage drops/surges, harmonics of grid voltages, and PF. Since Wind-PV-UPQC depends on dual compensation scheme, the parallel converter works as a sinusoidal voltage source, while the series converter works as a sinusoidal current source. …”
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Effect of Impeller Inlet Geometry on Cavitation Performance of Centrifugal Pumps Based on Radial Basis Function by Shuwei Zhang, Renhui Zhang, Sidai Zhang, Junhu Yang

“…The lower the pressure pulsation for blade passing frequency and the second harmonics of the samples is, the better the cavitation performance is. …”
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Numerical Studies of Propeller Exciting Bearing Forces under Nonuniform Ship’s Nominal Wake and the Influence of Cross Flows by Huilan Yao, Huaixin Zhang

“…Numerical results were widely validated by measured data, especially the velocity field at the propeller plane. Harmonic characteristics of the nonuniform ship’s wake were studied. …”
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Gear Defect Modeling of a Multiple-Stage Gear Train by Andrew Sommer, Jim Meagher, Xi Wu

“…Frequency analysis shows the appearance of side band modulations as well as harmonics of the gear mesh frequency. A joint time-frequency response analysis during startup illustrates the manner in which contact forces increase during acceleration.…”
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Compact Quadband Bandstop Filter Based on Concentric Split Ring Resonators with Perturbation for Multifunctional Wireless Systems by Pierre Moukala Mpele

“…Bandstop filters play an essential role in many radio frequency (RF) and microwave communication systems to block undesired signals or reject spurious harmonics. This paper presents the design and experiment of a compact quadband bandstop filter centered at 1.2/1.97/2.96/4.78 GHz with a passband insertion loss ranging from 1.07 to 2.9 dB. …”
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Analysis of the Spatial-Frequency Characteristics of the Photo-Assisted Method of a Quartz Rough Surface Nano-Polishing by Vasyl Kanevskii, Serhii Kolienov, Valerii Grygoruk, Oleksandr Stelmakh, Hao Zhang

“…In particular, when the standard deviation is less than 1 nm, all surface protrusions, for which the spatial spectrum harmonics of the profile are located in the region of the maximum slope of the spectral function, are most actively etched. …”
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A New Design of Vibration Absorber for Periodic Excitation by Shyh-Chin Huang, Kao-An Lin

“…Since the periodic rather than single harmonic excitation is themost occurring case in mechanical systems, the design of PVA is hence of engineering significance. …”
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Modeling Femtosecond Beam Propagation in Dielectric Hollow-Core Waveguides by Valer Tosa, Ana Maria Mihaela Gherman, Katalin Kovacs, István Tóth

“…In particular, hollow-core waveguides (HCWs) filled with a gas medium are fabricated and used as devices for the generation of attosecond pulses from high-order harmonics. In this process, the configuration of the laser field (intensity and phase) inside the waveguide is of crucial importance for enhancing the (well-known, low) efficiency of high-order harmonic generation (HHG). …”
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Wave Attenuation and Dispersion in a 6 mm Diameter Viscoelastic Split Hopkinson Pressure Bar and Its Correction Method by Haotian Zhang, Linjian Ma, Zongmu Luo, Ning Zhang

“…The results indicate that the high-frequency harmonics attenuate faster in a higher phase velocity. …”
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The earth-fill dam state express investigation using mechanical vibrations produced by HPP by Galina Antonovskaya, Natalia Kapustyan

“…Such vibrations are monochromatic oscillations on main frequencies and their harmonics produced by turbine. Seismic sensors installed on the dam's crest and inside it, if it possible, and in the area of abutment contacts register microseisms include HPP turbine operation vibrations which may be extracted by seismic data processing, i.e., filtering. …”
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