Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Fangwei Xu"'
Publikováno v:
Frontiers in Immunology, Vol 14 (2024)
BackgroundPrimary biliary cirrhosis (PBC) and psoriasis are frequently observed to co-occur in clinical settings. However, the causal associations and underlying mechanisms between PBC and psoriasis remain poorly defined.MethodsIn this study, we cond
Externí odkaz:
https://doaj.org/article/aba0e472daf2401893fa60ba970faba4
Autor:
Juexuan Chen, Huanjie Li, Dayuan Zhong, Fangwei Xu, Lu Ding, Chunzhi Tang, Chunguang Guan, Liming Lu, Jian Deng
Publikováno v:
Heliyon, Vol 9, Iss 12, Pp e22799- (2023)
Objective: To perform a bibliometric analysis of published research on acupuncture for neurodevelopmental disorders and to provide new insights for future studies. Methods: Web of Science Core Collection was used to search for articles on acupuncture
Externí odkaz:
https://doaj.org/article/c6ec8913700d4629bcb3b5e7c24de433
Publikováno v:
Journal of Modern Power Systems and Clean Energy, Vol 11, Iss 6, Pp 1804-1813 (2023)
Harmonic amplification phenomena could appear at the point of common connection (PCC) of the cable line terminal. However, the distributed parameter model of the cable line contains hyperbolic functions with plural variables, which makes it challengi
Externí odkaz:
https://doaj.org/article/592898fa288943f48933cf3e033b19ae
Autor:
Xin Tang, Fangwei Xu, Wenyu Wang, Chuan Wang, Chao Chen, Jinghui Fang, Liwu Gong, Chuangxin Guo
Publikováno v:
IEEE Access, Vol 11, Pp 87409-87419 (2023)
The background harmonic fluctuation has a significant impact on the results of harmonic contribution quantification. However, the existing methods, especially those applied for multiple harmonic sources scenario, usually assume that the background ha
Externí odkaz:
https://doaj.org/article/8492262cc20142b8b57fd1c38b134f3c
Publikováno v:
IET Generation, Transmission & Distribution, Vol 17, Iss 1, Pp 200-208 (2023)
Abstract Estimation of harmonic impedances and harmonic contributions is beneficial to harmonic control, and harmonic phasors data is necessary for the existing estimation methods. However, the phase angles of harmonic phasors are not recorded in som
Externí odkaz:
https://doaj.org/article/ebe48c262bb04edf84a043781ccc6aa8
Publikováno v:
IET Generation, Transmission & Distribution, Vol 14, Iss 13, Pp 2573-2580 (2020)
The accurate estimation of harmonic impedance on the utility side of a point of common coupling (PCC) is much important to harmonic control, harmonic emission level, and harmonic responsibility analysis. In this study, a novel estimation method for t
Externí odkaz:
https://doaj.org/article/de654435cdf04336a83159a6ae5fb237
Publikováno v:
IEEE Access, Vol 8, Pp 75409-75418 (2020)
The verifications of the calculated harmonic impedances are necessary for harmonic impedance estimation. Among the existing methods of the verifications, the method, by matching the calculated background harmonic voltage with the measured voltage whe
Externí odkaz:
https://doaj.org/article/1180843f1a3b4700807db1699e5eace9
Publikováno v:
IEEE Access, Vol 8, Pp 207389-207396 (2020)
The existing methods for estimating harmonic impedance usually assume that harmonic impedance is constant in a measurement period. However, for a variety of practical reasons, such as the load change of power grid, utility harmonic impedance may be c
Externí odkaz:
https://doaj.org/article/7da9cc7cdff14201a35c00e281e8f82f
Publikováno v:
IEEE Access, Vol 8, Pp 152611-152619 (2020)
With the large increase of the wide-frequency and high-order harmonic in power electronic based systems as well as the wide use of cables with large distributed capacitance in modern power grids especially renewable energy generations, the harmonic a
Externí odkaz:
https://doaj.org/article/5ea057e5a83d4cc3b11ec0d04d86b9b3
Publikováno v:
Entropy, Vol 22, Iss 3, p 323 (2020)
Evaluating the harmonic contributions of each nonlinear customer is important for harmonic mitigation in a power system with diverse and complex harmonic sources. The existing evaluation methods have two shortcomings: (1) the calculation accuracy is
Externí odkaz:
https://doaj.org/article/8d70f0bb7a2d469681bf12da8570769b