Compensation of parasitic elements of transistor in the class F amplifier with the tuning of impedances at harmonics by A. P. Yefymovych, V. G. Krizhanovski

“…The authors present a new method of construction and calculation of the output load circuit (OLC) for class F power amplifiers (PA) with the addition of the third harmonic of the voltage. This method allows compensating the negative influences of parasitic elements of transistor (output capacitance — COUT, and inductance — LOUT) on the drain efficiency of the amplifier. …”
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Harmonization of socioeconomic policy and institutional set-up for efficient operation on Nepal-India open border small business by Udaya Raj Paudel, Niranjan Devkota

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High Efficiency Class-F Rectifier Based on Harmonic-Controlled Voltage Doubler With Extended Input Power and Frequency Range by Jaemin Shin, Juntaek Oh

“…This paper presents a highly efficient class-F rectifier based on a harmonic-controlled voltage doubler (HCVD) structure. …”
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2W HBT Power Amplifier Module with Dual Second Harmonic Suppression Technique by Chul-Woo Byeon, Joon-Hyung Kim

“…Through the selection of an appropriate capacitor value at the transformer’s center tap, linearity is enhanced across a wide bandwidth without requiring additional second harmonic termination. When assembled with a low-pass filter and an antenna switch, the PA module achieves an output power of 36 dBm and a power-added efficiency (PAE) exceeding 40% in GSM mode. …”
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High-Efficiency Nanosecond Green Laser Based on Extra-Cavity Second-Harmonic Generation of a Nd:YAG MOPA System by Hua-Yu Liu, Zi-Han Zhou, Qi Bian, Yong Bo, Yang Kou, Lei Yuan, Da-Fu Cui, Qin-Jun Peng

“…A high infrared-to-green conversion efficiency laser is demonstrated by extra-cavity frequency-doubling of a master oscillator power amplifier (MOPA) laser. …”
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Design of a Compact 900 MHz Class-F Power Amplifier with Efficiency Improvement using Modified Harmonic Control Circuit by Rasoul Azadi, Saeed Roshani, Arez Nosratpour, Mohammad Hazhir Mozaffari

“…A Harmonic Control Circuit (HCC) is one of the most important blocks in the Class-F power amplifiers, which should pass the even harmonics and suppress the odd harmonics. …”
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Harmonics Monitoring Survey on LED Lamps by Abdelrahman Ahmed Akila, Kamelia Youssef, Ibrahim Yassin

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Enhancing High-Order Harmonic Generation Efficiency Through Molecular Size and Orientation Effects: A Pathway to Ultrafast Chemical Dynamics Studies by Shushan Zhou, Hao Wang, Dongming Yu, Nan Xu, Muhong Hu

“…However, enhancing the efficiency of harmonic emission remains a critical challenge in ultrafast science. …”
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Harmonic Path Integral Diffusion by Hamidreza Behjoo, Michael Chertkov

“…Mid Level: With quadratic potentials and affine force/gauge terms, the Green functions reduce to Gaussian forms, mirroring quantum harmonic oscillators in imaginary time. Bottom Level: For a uniform quadratic case, the optimal drift/control reduces to a convolution of the target distribution with a Gaussian kernel, enabling efficient sampling. …”
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Synchronized Measurement of the Fundamental Voltage and Harmonic, Interharmonic, and Subharmonic Components of the Electrical Grid Using an Adaptive Kalman Filter by Germán Martínez-Navarro, Salvador Orts-Grau, José Carlos Alfonso-Gil, Pedro Balaguer-Herrero

Subjects: “…harmonics…”
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Improving the Efficiency of Electric Rolling Stock Operation Through the Use of Adaptive Filtering Methods for High Harmonic Current Components in Traction Drive Systems by Goolak S.

Subjects: “…operational efficiency…”
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Investigation of Harmonic Losses to Reduce Rotor Copper Loss in Induction Motors for Traction Applications by Muhammad Salik Siddique, Hulusi Bülent Ertan, Muhammad Shahab Alam, Muhammad Umer Khan

Subjects: “…high-efficiency induction motor…”
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HARMONIZATION OF REGIONAL ADMINISTRATION MANAGEMENT STYLE by I. Drogobitsky

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Modeling of torsional vibration in harmonic drives by Ryszard LENIOWSKI

“…Harmonic Drives (HD) play a considerable role in industrial applications and precise medical equipments. …”
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Toward Efficient Land Cover Mapping: An Overview of the National Land Representation System and Land Cover Map 2015 of Bangladesh by Rashed Jalal, Zaheer Iqbal, Matieu Henry, Gianluca Franceschini, Mohammad S. Islam, Mariam Akhter, Zarin T. Khan, Mohammad A. Hadi, Mohammed A. Hossain, M. Golam Mahboob, Tasnuva S. Udita, Tariq Aziz, Syed M. Masum, Liam Costello, Champa R. Saha, Abdullah A. M. Chowdhury, Abdus Salam, Farzana Shahrin, Fazle R. Sumon, Mahbubur Rahman, Mohammad A. Siddique, Mohammad M. Rahman, Md N. Jahan, Mir F. Shaunak, Mohammad S. Rahman, Mohammad R. Islam, Nicola Mosca, Remi D'Annunzio, Shrabanti Hira, Antonio Di Gregorio

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System-Level Analysis of LED Retrofit Solutions for T8 Fluorescent Tubes: Harmonic Emissions, Photometric Impacts, and Compliance Considerations by Themistoklis L. Athanasiadis, Eleni P. Nicolopoulou, Evangelos-Nikolaos D. Madias, Aikaterini D. Polykrati, Christos A. Christodoulou, Lambros T. Doulos, Ioannis F. Gonos

Subjects: “…Harmonic emissions…”
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AN EFFICIENT SPEECH GENERATIVE MODEL BASED ON DETERMINISTIC/STOCHASTIC SEPARATION OF SPECTRAL ENVELOPES by M. Taha, E. S. Azarov, D. S. Likhachov, A. A. Petrovsky

“…The paper presents a speech generative model that provides an efficient way of generating speech waveform from its amplitude spectral envelopes. …”
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Effect of the Concentration of Bioethanol Mixed with Gasoline on the Energy and Environmental Performance of a Hybrid Vehicle in the Worldwide Harmonized Light Vehicles Test Cycle... by Alfredas Rimkus, Gabrielius Mejeras, Aleš Dittrich, Saugirdas Pukalskas, Dalibor Barta

“…A comprehensive evaluation using the WLTC indicates that increasing the bioethanol concentration up to 70% improves the energy efficiency of the hybrid vehicle’s internal combustion engine and reduces pollutant and CO₂ emissions.…”
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3.3-4.3 GHz efficient continuous class-F gallium nitride power amplifier based on simplified real frequency technique and harmonic tuning. by Md Golam Sadeque, Zubaida Yusoff, Mardeni Roslee, Shaiful Jahari Hashim, Azah Syafiah Mohd Marzuki, Jonathan Lees, Farid Zubir, Samir Salem Al-Bawri

“…According to experimental findings, the measured drain efficiency (DE) throughout the whole bandwidth ranged from 57.5 to 67.5% at the output power of 40 dBm. …”
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Effects of Grain Morphology on Nonlinear Conversion Efficiency of Random Quasi-Phase Matching in Polycrystalline Materials by Kefei Liu, Kai Zhong, Zhantao Lu, Degang Xu, Jianquan Yao

“…The effects of average grain size, standard deviation, and sphericity on SHG efficiency were figured out to conclude that the grain-size deviation plays the most important role in RQPM efficiency and the optimal grain size is smaller than the coherence length. …”
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