Results 1 to 10 of about 383,928 (179)
Altered low-frequency oscillation amplitude of resting state-fMRI in patients with discogenic low-back and leg pain [PDF]
Journal of Pain Research, 2018 Fuqing Zhou,1,2 Lili Gu,3 Shunda Hong,1,2 Jiaqi Liu,1,2 Jian Jiang,1,2 Muhua Huang,1,2 Yong Zhang,3 Honghan Gong1,2 1Department of Radiology, The First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi, People’s Republic of China ...
Zhou F +7 more
doaj +2 more sources
Gaoyuan qixiang, 2023 In order to study the characteristics of low frequency oscillation of summer precipitation over Qinghai-Xizang Plateau， based on the daily precipitation data of 62 meteorological stations over the Qinghai-Xizang Plateau from 1978 to 2017 and the high ...
Xizhao WANG +4 more
doaj +1 more source
Study on stability margin of ultra-low frequency oscillation in hydropower system
Energy Reports, 2023 In recent years, the ultra-low frequency oscillation of power system caused by hydropower units has occurred frequently. It is very important to study the ultra-low frequency oscillation characteristics of hydropower stations for the stable operation of ...
Fan Tang +8 more
doaj +1 more source
Modal Parameter Identification of Low Frequency Oscillation in Power System Based on Ambient Data
发电技术, 2022 Low frequency oscillation is one of the key problem affecting the safe and stable operation of interconnected power system, variational modal decomposition (VMD) was used to extract low-frequency oscillation signals from ambient data, and a method of low-
YAN Hongyan, HWANG Jin Kwon, GAO Yanfeng
doaj +1 more source
Extended-Range Forecast of Regional Persistent Extreme Cold Events Based on Deep Learning
Atmosphere, 2023 Regional persistent extreme cold events are meteorological disasters that cause serious harm to people’s lives and production; however, they are very difficult to predict. Low-temperature weather systems and their effects have a significant low-frequency
Weichen Wu +4 more
doaj +1 more source
Frontiers in Earth Science, 2023 Previous studies have pointed out that persistent abnormal precipitation is closely related to atmospheric low-frequency oscillation, and Southwest China can be affected by low-frequency oscillation in different latitudes and altitudes.
Tian-Gui Xiao +6 more
doaj +1 more source
Energies, 2023 This article addresses the problem of the contact voltage increase caused by the low-frequency oscillation of the train-grid system in the phase-separation process of EMUs.
Jixing Sun +6 more
doaj +1 more source
Applied Sciences, 2023 Aiming at the low-frequency oscillation problem of high-proportion wind power and energy storage connected to the power system, this paper establishes a system small signal model according to the matrix similarity theory, which lays a foundation for the ...
Yu Song, Shouyuan Wu
doaj +1 more source
Low Frequency Oscillation Mode Estimation Using Synchrophasor Data
IEEE Access, 2020 Deep learning techniques have been widely used for power system operations as a very hot topic in recent years. This paper proposed a spatiotemporal deep learning-based low frequency oscillation mode estimation method using synchrophasor data.
Jinhuan Zhang, Haixia An, Na Wu
doaj +1 more source
Sub-Seasonal Prediction of Sea-Gale Processes in the Yangtze River Estuary of China
Atmosphere, 2023 The sea-gale process (SGP) is a significant and disastrous weather event for the marine industry. However, the sub-seasonal predictability of SGP remains unclear.
Xiao Xie, Ping Liang, Qiwen Qian
doaj +1 more source