Results 1 to 10 of about 20,817,051 (316)

Multi-physics coupled temperature rise in GIS equipment with built-in optical fiber bundles

Journal of Engineering and Applied Science
This study presents a novel multiphysics coupling analysis of a 220 kV gas-insulated switchgear(GIS)incorporating an embedded optical fiber bundle, with the key innovation lying in the systematic evaluation of the mutual compatibility between the ...
Jining Zhao, Zhilong Zhao, Zihui Yin, Zhanning Wang   +3 more
doaj   +1 more source

High power lasers

Encyclopedia
High-power lasers play an important role in modern science, industry, and medicine. A signifi-cant milestone was reached on December 5, 2022, when Inertial Confinement Nuclear Fusion (ICF) achieved scientific breakeven, releasing more energy than the input laser energy. Additionally, Extreme Ultraviolet Lithography (EUVL) has enabled the development of
openaire   +2 more sources

High-power, high-linearity photodiodes and high-power photodiodes as optoelectronic mixers [PDF]

, 2017
Even since fibers are proposed to replace conventional coaxial cables to transmit microwave signals, the applications for analog optical link have been rapidly increasing such as phased array antennas, radio over fiber, photonic analog-to-digital converters, etc.
openaire   +1 more source

Federated knowledge distillation for enhanced insulator defect detection in resource‐constrained environments

IET Computer Vision
Insulator defect detection is crucial for the stable operation of power systems. It has become a mainstream research direction to realise insulator defect detection based on the combination of line images captured by UAVs and deep learning techniques ...
Xiaohu Huang, Minghui Jia, Xianghua Tai, Wei Wang, Qi Hu, Dongping Liu, Peiheng Guo, Shengxiang Tian, Dequan Yan, Haishan Han   +9 more
doaj   +1 more source

Toeplitz-MUSIC algorithm-based optimization scheme for UHV/EHV acoustic source localization

Discover Applied Sciences
To address the problems of weak anti-interference and large positioning error of the traditional 2D-MUSIC algorithm under low signal-to-noise ratio (SNR) in partial discharge (PD) localization of power transformer bushings, this paper proposes an ...
Zihao Liu, Hongyuan Xu, Yanhui Meng, Zhilong Zhao   +3 more
doaj   +1 more source

Distribution Optimization Method for Power Environment-Friendly Mixed Insulation Gas

Zhongguo dianli
The state-of-art cost of environmental-friendly SF6/CF4 mixed insulating gas of GIS equipment in the power system is relatively high. In order to ensure its insulation and arc extinguishing performance, SF6 gas is overfilled on site, which is not in line
Jie DONG, Bo YANG, Guoxin YI, Haichuan HE, Le MA   +4 more
doaj   +1 more source

Neural Network-based CF4 and SF6/CF4 Detection in High Altitude and Extreme Cold Regions

Zhongguo dianli
In extreme cold regions, the need to carry multiple instruments to meet the demands for detecting varying concentration levels of CF4 gas within SF6 gas leads to inefficient field operations and high costs for instrument acquisition. To overcome this, an
Rukuo MA, Jie DONG, Yatian WANG, Guoxin YI, Xianghao DING, Le MA   +5 more
doaj   +1 more source

Infrared spectrum target recognition and positioning technology based on image segmentation algorithm

Discover Artificial Intelligence
In the era of rapid development of digitalization and science and technology, infrared images are widely used in security, industry and other fields, but their target recognition and positioning face many difficulties. The existing image segmentation and
Runming He, Yu Wang, Zhenzhong Yan, Xiaoli Lu   +3 more
doaj   +1 more source

Soil microbial community composition and nitrogen enrichment responses to the operation of electric power substation

Frontiers in Microbiology
The surge in global energy demand mandates a significant expansion of electric power substations. Nevertheless, the ecological consequences of electric power substation operation, particularly concerning the electromagnetic field, on soil microbial ...
Zhi-Xin Xu, Bo Zeng, Sheng Chen, Sa Xiao, Lin-Gao Jiang, Xiang Li, Yun-Fang Wu, Le-Xing You   +7 more
doaj   +1 more source

A megawatt-level surface wave oscillator in Y-band with large oversized structure driven by annular relativistic electron beam

Scientific Reports, 2018
High power vacuum electronic devices of millimeter wave to terahertz regime are attracting extensive interests due to their potential applications in science and technologies.
Jianguo Wang, Guangqiang Wang, Dongyang Wang, Shuang Li, Peng Zeng   +4 more
doaj   +1 more source