Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Hanwen Ren"'
Autor:
Chenming Huang, Li Zhang, Tong Tang, Haijiao Wang, Yingqian Jiang, Hanwen Ren, Yitian Zhang, Jiali Fang, Wenhe Zhang, Xian Jia, Song You, Bin Qin
Publikováno v:
JACS Au, Vol 4, Iss 7, Pp 2547-2556 (2024)
Externí odkaz:
https://doaj.org/article/09d2c8136773460b85b83d6494d8db05
Publikováno v:
High Voltage, Vol 9, Iss 3, Pp 659-673 (2024)
Abstract For the space charge measurement method with optical excitation for electrical insulation, the distortion of the excitation laser on the measurement signal and the accumulation of space charge have not been discussed before. Both experiment
Externí odkaz:
https://doaj.org/article/bc15f57a825949618eb8ca0e492ae27a
Publikováno v:
IET Science, Measurement & Technology, Vol 18, Iss 2, Pp 74-85 (2024)
Abstract This paper studies the equivalent transmission line model of the pulsed electro‐acoustic (PEA) method with its applications. Based on the consistency of acoustic wave behaviour inside lossy acoustic materials and voltage wave propagation i
Externí odkaz:
https://doaj.org/article/6a07cb8f2bc244f6a6bcfbc403a06255
Publikováno v:
CSEE Journal of Power and Energy Systems, Vol 10, Iss 2, Pp 746-755 (2024)
Accelerated insulation aging problems under high frequency repetitive impulses in power electronic transformers are drawing more and more attention in modern power systems. Partial discharge (PD) characteristics including discharge inception voltage,
Externí odkaz:
https://doaj.org/article/48294596e98044188b6fc5019d155736
Publikováno v:
Chemosensors, Vol 11, Iss 12, p 573 (2023)
The progression of Alzheimer’s disease (AD) is positively correlated with the phosphorylation damage of Tau-441 protein, which is the marker with the most potential for the early detection of AD. The low content of Tau-441 in human serum is a major
Externí odkaz:
https://doaj.org/article/011970cb68f0436e891b860da360a889
Autor:
Hanwen Ren, Yasuhiro Tanaka, Hiroaki Miyake, Qingmin Li, Haoyu Gao, Chengqian Li, Zhongdong Wang
Publikováno v:
High Voltage, Vol 6, Iss 5, Pp 760-769 (2021)
Abstract The charge phenomena under sine and half‐wave sine voltages within the frequency range of 500 Hz are studied here. Based on the pulsed electro‐acoustic method, the traditional circuit design under high‐frequency voltages is first analy
Externí odkaz:
https://doaj.org/article/362621f6658b40a2a07d19a783430756
Publikováno v:
Metrology and Measurement Systems, Vol vol. 28, Iss No 3, Pp 565-580 (2021)
This paper proposes an evaluation method for the observable trap depth range of space charge when using the pulsed electro-acoustic (PEA) method and its complementarity with the current integration charge (Q(t)) method. Based on the measurement proce
Externí odkaz:
https://doaj.org/article/3e1c4a3b9fc8499498dfb9fd1f84a2c5
Publikováno v:
Polymers, Vol 14, Iss 7, p 1374 (2022)
Metal contaminants can distort the surface electric field of the tri-post epoxy insulator and cause serious surface charge accumulation, significantly reducing the insulation performance of the insulator under the superimposed DC and lightning impuls
Externí odkaz:
https://doaj.org/article/439b2ed9a3a44b438e093d2de19d52d4
Publikováno v:
Polymers, Vol 13, Iss 19, p 3401 (2021)
In this paper, we studied the space charge phenomena of a solid polymer under thermal and electrical stresses with different frequencies and waveforms. By analyzing the parameter selection method of a protection capacitor and resistor, the newly buil
Externí odkaz:
https://doaj.org/article/616bbe40c22742bfb1f6b5ecf2421978
Autor:
Junling Liu, Hanwen Ren, Tong Tang, Jiaqi Wang, Jiali Fang, Chenming Huang, Zhendong Zheng, Bin Qin
Publikováno v:
ACS Catalysis. :7730-7755