Results 21 to 30 of about 1,263,282 (314)

Two Kinds Hybrid Power Mean Involving Two-Term Exponential Sums and Dedekind Sums [PDF]

, 2023
The main purpose of this article is using the analytic mathods and the quadratic residual transformation technique, and properties of Dedekind sums to study the calculating problem of two kinds hybrid power mean involving the two-term exponential sums and Dedekind sums, and give two asymptotic formulas for it. This work is a generalization for existing
Jinmin Yu, Xue Han, Tingting Wang
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Optimal Power Allocation for Channel Estimation in MIMO-OFDM System with Per-Subcarrier Transmit Antenna Selection [PDF]

Radioengineering, 2015
A novel hybrid channel estimator is proposed for multiple-input multiple-output orthogonal frequency- division multiplexing (MIMO-OFDM) system with per-subcarrier transmit antenna selection having optimal power allocation among subcarriers.
K. Rajeswari, S. J. Thiruvengadam
doaj   +4 more sources

Hybrid Transceiver Design and Optimal Power Allocation for the Cognitive mmWave Multiuser MIMO Downlink Relying on Limited Feedback

IEEE Open Journal of Vehicular Technology, 2023
A hybrid transceiver architecture is conceived for a cognitive radio (CR) aided millimeter wave (mmWave) multiuser (MU) multiple-input multiple-output (MIMO) downlink system relying on multiple radio frequency (RF) chains both at the CR base station (CBS)
Jitendra Singh, Indranil Chatterjee, Suraj Srivastava, Abhishek Agrahari, Aditya K. Jagannatham, Lajos Hanzo   +5 more
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Active hybrid bearings as mean for improving stability and diagnostics of heavy rotors of power generating machinery

IOP Conference Series: Materials Science and Engineering, 2020
Abstract The article describes a theoretical study of basic features of active hybrid bearings used as supports for heavy energy-generating machines equipment, primarily turbine generators and their turbines. Due to the adjustable oil supply pressure and using a controller of a rotor position AHB reduces its vibration level.
Denis Shutin, Roman Polyakov
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Enhancing Power Generation Forecasting in Smart Grids Using Hybrid Autoencoder Long Short-Term Memory Machine Learning Model

IEEE Access, 2023
This study explores the implementation of advanced machine learning techniques to enhance the integration of renewable energy into smart grids, focusing specifically on predicting solar power generation for the upcoming year.
Ahsan Zafar, Yanbo Che, Muneer Ahmed, Muhammad Sarfraz, Ashfaq Ahmad, Mohammad Alibakhshikenari   +5 more
doaj   +2 more sources

Hybrid Power Supply System Monitoring And Control By Using Least Mean Square Algorithm [PDF]

Seventh International Conference on Advances in Computing, Communication and Information Technology - CCIT 2018, 2018
Gye Choon Park, Jin Lee, Na Kil Ju, Prakash Thapa, Sung Gi Kwon   +4 more
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Sizing, design, and installation of an isolated wind–photovoltaic hybrid power system with battery storage for laboratory general illumination in Afyonkarahisar, Turkey

Journal of Energy in Southern Africa, 2017
power generation system of a size able to meet the electric power requirement for general illumination of the electric laboratory at Afyon Kocatepe University was dimensioned and installed.
Yüksel Oğuz, M. Feyzi Özsoy
doaj   +2 more sources

Forecasting wind speed data by using a combination of ARIMA model with single exponential smoothing [PDF]

, 2021
Wind serves as natural resources as the solution to minimize global warming and has been commonly used to produce electricity. Because of their uncontrollable wind characteristics, wind speed forecasting is considered one of the best challenges in ...
A. Rahman, Nur H., Hassan, Siti F., Kamisan, Nur A., Lee, Muhammad H., Nor, Maria E., Norrulashikin, Siti M.   +5 more
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Hybrid model based on K-means++ algorithm, optimal similar day approach, and long short-term memory neural network for short-term photovoltaic power prediction

Global Energy Interconnection, 2023
Photovoltaic (PV) power generation is characterized by randomness and intermittency due to weather changes. Consequently, large-scale PV power connections to the grid can threaten the stable operation of the power system.
Ruxue Bai, Yuetao Shi, Meng Yue, Xiaonan Du   +3 more
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Power Distribution Control Framework for Renewable Energy Architecture with Battery-Supercapacitor Based Hybrid Energy Storage Systems

Energies, 2021
Due to the intermittence and randomness of the renewable energy, hybrid energy storage system is widely adopted to suppress the power fluctuation. Power distribution is crucial for the robust and efficient operation of hybrid energy system.
Weiyue Huo, Jihong Zhu, Jing Zhou
doaj   +1 more source