Helitron: Operation at High Frequency Orbital Harmonics and the Mode of Electron Phase Selection by A. A. Kurayev, V. V. Matveyenka

Subjects: Get full text

Efficiency increasing of a shipyard power supply system by Beley V. F., Korotkikh K. V.

“…The development of the shipbuilding industry involves increasing the competitiveness of manufactured products, replacing obsolete electrical equipment, and increasing the efficiency of power supply systems. The introduction of the latest technologies reduces the weight and size of equipment, expands their functionality, but these technologies are based on nonlinear and asymmetrical power consumers, which causes a negative impact on the power grid. …”
Get full text

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. …”
Get full text

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. …”
Get full text

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…”
Get full text

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. …”
Get full text

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. …”
Get full text

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. …”
Get full text

Improved Modulated Model Predictive Control: Reducing Total Harmonic Distortion, Computational Burden, and Parameter Sensitivity by Seyed Rasul Eftekhari, Ali Mosallanejad, Hamidreza Pairo, Jose Rodriguez

Subjects: Get full text

Advanced thyristor-based cycloconverter for efficient three-phase conversion with low THD by Mahbubur Rahman Tahmid, Md. Abdul Malek, Md. Rafiul Islam, Muhammad Abdul Goffar Khan

Get full text

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

“…Monte-Carlo simulations were performed on the efficiency of random quasi-phase matching (RQPM) nonlinear optical frequency conversion in polycrystalline materials to study the detailed effects of the statistical grain morphology. …”
Get full text

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. …”
Get full text

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

Get full text

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…”
Get full text

Analysis and Design of a Novel Broadband and High-Efficiency Class-E/FJ Power Amplifier by Parastoo Rostami, Akram Sheikhi, Alireza Alizadeh

Get full text

ENERGY EFFICIENT DESALINATOR by Nikolaj V. Bekrenev, Dmitriy Yu. Lukov

Get full text

Enhancing Solar Power Efficiency: Implementation of Smart Inverter EGS002 in Renewable Energy Systems by Noriel Bontoc, Simon Patangke

“…The method used in this study involves testing the performance of the EGS002 inverter under operational conditions of PLTS in Indonesia, including measuring power conversion efficiency and Total Harmonic Distortion (THD). The results show that the EGS002 inverter has a power conversion efficiency of 92.5% and a low THD of 4%, which meets the power quality standards required for integration with the electricity grid. …”
Get full text

Analysis of Efficiency and Noise, Vibration, and Hardness Characteristics of Inverter for Electric Vehicles According to Pulse Width Modulation Technique by Do-Yun Kim

Subjects: Get full text

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.…”
Get full text

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. …”
Get full text