Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Hongqian Hu"'
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03777- (2024)
The highwall mining technique is the family member of green mining system, for which the development of the cost-effective backfill material is always the critical issues to be accounted for. In the present research, an innovative backfill material m
Externí odkaz:
https://doaj.org/article/0f237d327eca4d0c9f4b550d0a8d0976
Publikováno v:
Polymers, Vol 15, Iss 16, p 3351 (2023)
To further enrich the side-filling structure system of goaf-retaining roadways and explore the compression reaction mechanism of the composite in the support environment of underground mine roadways, this paper introduces a double-wall hollow composi
Externí odkaz:
https://doaj.org/article/b958182cee28479fb2c2b3152dff685b
Autor:
Hongqian Hu, Weifeng Shi
Publikováno v:
Journal of Computational Methods in Sciences and Engineering. 21:109-123
Marine electric propulsion system is a complex power chain of ship-engine-propeller composed by inverter, propulsion motor and propeller. Ship power system is an independent power grid, its propulsion motor and propeller are easily affected by comple
Publikováno v:
Journal of Computational Methods in Sciences and Engineering. 20:959-973
The stator winding inter-turn short fault of permanent magnet synchronous motor (PMSM) is a common motor fault with high probability. If this fault is not detected and handled in time, small initial fault will rapidly develop into other faults such a
Autor:
Weifeng Shi, Hongqian Hu
Publikováno v:
International Journal of Pattern Recognition and Artificial Intelligence. 36
In order to overcome the phenomenon of aliasing mode in empirical mode decomposition (EMD), an improved EMD method based on frequency rotation factor and vector operation is proposed. First, fast Fourier transform (FFT) is used to determine the frequ
Publikováno v:
2016 IEEE International Conference on Electronic Information and Communication Technology (ICEICT).
The paper presents a weak capacity measurement method with vector ratio based on phase sensitive detection (PSD). This method can separate the real weak signal from noise with high SNR (Signal Noise Ratio). In practical circuit achievement, the weak
Publikováno v:
环境与职业医学, Vol 39, Iss 5, Pp 545-549 (2022)
BackgroundThe key enzymes of serine synthesis pathway (SSP) play an important role in tumor growth, proliferation, and invasion, but their roles in arsenic carcinogenesis are unclear.ObjectiveTo observe the effects of NaAsO2 treatment on the expressi
Externí odkaz:
https://doaj.org/article/1ade335a595c40c48b7448b6c968ffd7