Zobrazeno 1 - 10
of 725
pro vyhledávání: '"Ruofu"'
Autor:
Yulong Li, Xianming Cao, Yunrong Chai, Ruofu Chen, Yinjuan Zhao, Rainer Borriss, Xiaolei Ding, Xiaoqin Wu, Jianren Ye, Dejun Hao, Jian He, Guibin Wang, Mingmin Cao, Chunliang Jiang, Zhengmin Han, Ben Fan
Publikováno v:
npj Biofilms and Microbiomes, Vol 10, Iss 1, Pp 1-12 (2024)
Abstract Currently, almost all known regulators involved in bacterial phosphorus metabolism are proteins. In this study, we identified a conserved new small regulatory RNA (sRNA), named PhoS, encoded in the 3’ untranslated region (UTR) of the phoPR
Externí odkaz:
https://doaj.org/article/603b666f05e3449ba1774033027c3a50
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 7, Pp 3088-3109 (2024)
Abstract Mixed‐flow pump is a typical pump using in low‐head cases of water lifting. The flow field pulsation is usually an important issue in the operation of mixed‐flow pumps and their pumping statins. Due to its large size, it is difficult t
Externí odkaz:
https://doaj.org/article/eb909b42771c4013b74985fde52006a0
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 18, Iss 1 (2024)
In this study, a detailed flow state analysis of a reversible pump turbine (RPT) under small guide vane opening conditions was conducted using both numerical simulation and experimental methods on three analysis planes at 0.5 span. The entropy produc
Externí odkaz:
https://doaj.org/article/851c0c31977b4b32bb328533175a3653
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 18, Iss 1 (2024)
Hydrofoil trailing edge shape directly influences its downstream flow state. Due to the non-streamlined shape, alternating vortices will form downstream, resulting in complex pressure pulsations. Different shapes of the trailing edge lead to varying
Externí odkaz:
https://doaj.org/article/424144a380344671ad586fda2aabf60f
Publikováno v:
Engineering Applications of Computational Fluid Mechanics, Vol 18, Iss 1 (2024)
Francis turbines, essential for stability in diverse operating conditions and variable-speed scenarios, encounter efficiency-compromising vortex rope formations in the draft tube, leading to substantial pressure fluctuations. This research delves int
Externí odkaz:
https://doaj.org/article/bc33800dc53348eda8990cd7e71afcf5
Autor:
Zilong Hu, Qiang Liu, Xiaohang Wang, Mingkun Fang, Taiping Chen, Ran Tao, Junfeng Ding, Di Zhu, Ruofu Xiao, Huanmao Wang
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 4, Pp 1569-1591 (2024)
Abstract The rotor blades of an axial‐flow turbine are cantilever structures, and there is inevitably a gap between them and the casing. Due to factors such as rotor wear and unit vibration, the eccentricity of the impeller will change during the o
Externí odkaz:
https://doaj.org/article/bce1b479072a45239f2cc4eef073b952
Publikováno v:
Energy Science & Engineering, Vol 12, Iss 1, Pp 102-116 (2024)
Abstract The reversible pump‐turbine plays an important role in hydropower stations, but pressure pulsation during their operation affects their performance and lifespan. Accurate prediction of pressure pulsation signals can provide an important ba
Externí odkaz:
https://doaj.org/article/2551adfddd2d4960998166d5f0f42b81
Autor:
Chunxia Ma, Ming Li, Hao Peng, Meiyi Lan, Li Tao, Changting Li, Cuilan Wu, Huili Bai, Yawen Zhong, Shuhong Zhong, Ruofu Qin, Fengsheng Li, Jun Li, Jiakang He
Publikováno v:
BMC Microbiology, Vol 23, Iss 1, Pp 1-11 (2023)
Abstract Background Mycoplasma ovipneumoniae is a critical pathogen that causes respiratory diseases that threaten Caprini health and cause economic damage. A genome-wide study of M. ovipneumoniae will help understand the pathogenic characteristics o
Externí odkaz:
https://doaj.org/article/e062bebe0f3d421784d754de45e5b290
Publikováno v:
Energy Science & Engineering, Vol 11, Iss 8, Pp 2710-2724 (2023)
Abstract The frequent switching of pump mode and turbine mode of the pump turbine leads to frequent transient phenomena. To ensure the safe and stable operation of the unit, a detailed study on the exhaust and pressurization process when the unit swi
Externí odkaz:
https://doaj.org/article/1045d9bb6afb41e5b308b00d0c38dff8
Publikováno v:
Frontiers in Energy Research, Vol 12 (2024)
Pumped storage is an important component of electrified wire netting. The safe and stable operation of pump turbines is extremely important. Among them, pressure pulsation is one of the main causes of pump turbine vibration. The characteristics of pr
Externí odkaz:
https://doaj.org/article/e73b920e51994cefa10aa0f0e453b192