Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Qingfeng Ji"'
Publikováno v:
Frontiers in Energy Research, Vol 12 (2024)
Relay protection rejection and misoperation exist in the existing distribution network, which will affect the fault diagnosis results. To diagnose faults in distribution networks, this paper presents a fault diagnosis method for the distribution netw
Externí odkaz:
https://doaj.org/article/c7048880a1e8411683d4cc4c2b400870
Publikováno v:
Heliyon, Vol 10, Iss 13, Pp e33695- (2024)
The water quality index (WQI) is a widely used tool for comprehensive assessment of river environments. However, its calculation involves numerous water quality parameters, making sample collection and laboratory analysis time-consuming and costly. T
Externí odkaz:
https://doaj.org/article/5d684f29740d4eccb86ef14a482bb01d
Publikováno v:
Results in Engineering, Vol 21, Iss , Pp 101832- (2024)
In order to avoid random risks in the power system and rationally allocate power to improve power consumption efficiency, this study designed a power system optimization model based on value-at-risk method, replaced the independent variables of parti
Externí odkaz:
https://doaj.org/article/d4ab53d861a94398ae048489608626ac
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 135-143 (2023)
This paper proposes a solution for the challenges faced in predicting the output of distributed solar power stations due to difficulties in obtaining and utilizing data. The proposed method is a multi-scale regional photovoltaic power generation fore
Externí odkaz:
https://doaj.org/article/914b8c5bab9048d1b6221e981b64a6c8
Publikováno v:
All Earth, Vol 34, Iss 1, Pp 27-38 (2022)
Sea surface temperature (SST) is an important indicator of marine system. In this study, the hybrid physically-statistically based air2water model was modified for the forecasting of SST. The hybrid model combines empiricism and theory, and balances
Externí odkaz:
https://doaj.org/article/86fb10c437194e5f806aab91f29c38a6
Autor:
Changming Chen, Xiaogang Wu, Jien Ma, Yuge Chen, Shengyuan Liu, Xinhua Wu, Qingfeng Ji, Jieyang Ye, Li Yang, Zhenzhi Lin
Publikováno v:
IET Renewable Power Generation, Vol 16, Iss 4, Pp 671-687 (2022)
Abstract Under the background of carbon neutrality and large‐scale penetration of renewable energy, the integrated local energy system (ILES) has been extensively recognized as an effective way to reduce carbon emissions and improve renewable energ
Externí odkaz:
https://doaj.org/article/496ed7d4d881409eaf87c36855be02bb
Autor:
Senlin Zhu, You Luo, Renata Graf, Dariusz Wrzesiński, Mariusz Sojka, Bowen Sun, Lingzhong Kong, Qingfeng Ji, Wenguang Luo
Publikováno v:
Journal of Hydrology: Regional Studies, Vol 44, Iss , Pp 101281- (2022)
Study region: The study region comprises 125 water gauges from 70 rivers covering the whole territory of Poland. Study focus: The air2stream model was used to reconstruct daily river water temperature (RWT) from 125 water gauges in 70 Polish rivers f
Externí odkaz:
https://doaj.org/article/e6f21e9646324ddebc84bc9a58af6e1d
Publikováno v:
Materials & Design, Vol 214, Iss , Pp 110376- (2022)
A multifactorial experimental research on erosion-corrosion behavior of liquid–solid swirling flow in pipeline was carried out by a circulating loop system in combination with a variety of test methods. The analysis of statistical significance reve
Externí odkaz:
https://doaj.org/article/aad4c832091f4682b9e3aa219f267372
Publikováno v:
Applied Sciences, Vol 12, Iss 23, p 11983 (2022)
The wandering reach of the lower Yellow River has undergone significant channel degradation since the Xiaolangdi Reservoir operation, with a cumulative channel scour volume of 14.1 × 108 m3 in 1999–2018, and severe channel scour has resulted in ra
Externí odkaz:
https://doaj.org/article/1325cb4a107041d2b2083c62ed96a96d
Publikováno v:
Energies, Vol 15, Iss 4, p 1548 (2022)
During the startup and shutdown processes of a reversible-pump turbine (RPT) working in pump mode, abnormal sounds and vibrations usually occur in the distributor when the guide vanes (GVs) are at a slight opening (max opening of about 6%). The objec
Externí odkaz:
https://doaj.org/article/ea7efab9a77e4a92a8761aef1bebc594