Results 21 to 30 of about 411,566 (265)

Application of knowledge graph in power system fault diagnosis and disposal: A critical review and perspectives

Frontiers in Energy Research, 2022
Knowledge graph (KG) has good knowledge expression ability and interpretation, and its application to power system fault diagnosis and disposal can effectively integrate data of the whole life cycle of equipment and form a novel knowledge-driven ...
Qian Chen, Qiang Li, Jiyang Wu, Chizu Mao, Guangqiang Peng, Dianchu Wang   +5 more
doaj   +1 more source

Single-carrier transmission scheme for extracting characteristic parameters of 32-Point 6PolSK-QPSK

EURASIP Journal on Advances in Signal Processing, 2022
Six polarization-shift keying quadrature phase shift keying (6PolSK-QPSK) signal modulation format is formed by different representations of QPSK. A variety of satisfactory single-carrier transmission schemes have been implemented in 24-Point 6PolSK-QPSK.
Yupeng Li, Yichao Zhang, Lei Li, Mingzhu Zhang, Du Wu, Qianqian Li, Xiaoming Ding, Xiaocheng Wang   +7 more
doaj   +1 more source

Replacing Construction Technology of Corroded Ground Wire of 500 kV Line Across Three 220 kV Transmission Lines in the Same Gear

南方能源建设, 2022
[Introduction] With the increase of operation time of overhead transmission lines and the aggravation of aging and corrosion of equipment, the rusted ground wire replacement is significantly increased. Due to the large cross span of overhead transmission
ZHAO Gang, HE Sen, WEI Peicai, SONG Yunhai, QU Zhiyu   +4 more
doaj   +1 more source

Fault case analysis and simulation research of neutral-bus arresters multi-column parallel connected in converter station

The Journal of Engineering, 2018
High-voltage DC arrester is one of the key equipment for overvoltage protection of ultra-high voltage DC (UHVDC) transmission system. This device plays a decisive role in the insulation level of the whole process.
Dianlang Wang, Guogen Li, Long Jiang, Xiaowei Yang, Tianman Pi, Zhongkang Huang, Dong Li, Jie Zhang, Xiangyu Yaoi, Rongyu Su, Lihui Zhang   +10 more
doaj   +1 more source

Mayfly Optimization Algorithm–Based PV Cell Triple-Diode Model Parameter Identification

Frontiers in Energy Research, 2022
The maximum power output and control optimization analysis of photovoltaic (PV) systems are based on accurate and reliable PV cell parameter identification. However, its difficult problems such as high nonlinearity and multimodality have become obstacles
Nuo Chen, Wei Bi, Gentang Xu, Zongshi Wu, Mingwei Wu, Ke Luo   +5 more
doaj   +1 more source

Influence of Si3N4 powder characteristics on the electrical and mechanical properties of pressureless sintered ceramics

Journal of Asian Ceramic Societies
Silicon nitride (Si3N4) ceramics, combining excellent resistivity and high-temperature stability, are widely used in SF6-insulated high-voltage DC electrical equipment.
Yiming Zhang, Dong Hou, Jingkai Nie, Zhixiang Zhu, Qiang He, Yu Han   +5 more
doaj   +1 more source

GCFR: graph contrastive fault representation for robust diagnosis in power communication networks

Scientific Reports
This work addresses fault diagnosis in power communication networks (PCNs) under three practical challenges–limited labels, evolving topology, and noisy alarms–by proposing GCFR, a graph-contrastive fault representation framework. GCFR learns robust node
Baohao Chen, Guosheng Lu, Yifeng Zhu, Chengyu Liu, Bingdong Qin, Jianxue Li   +5 more
doaj   +1 more source

Intelligent Equipment Scheduling Optimization Model for Transmission Lines Based on Improved BFO Algorithm

EAI Endorsed Transactions on Energy Web
INTRODUCTION: In modern power systems, the optimization of intelligent equipment scheduling for transmission lines is a key task. OBJECTIVES: To improve the effectiveness of scheduling optimization, this study introduces an intelligent equipment ...
Wulue Zheng, Xin Zhang, Fuchun Zhang, Ning Wang, Yangliang Zheng, Zhi Wang   +5 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source