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pro vyhledávání: '"Zh, Zhang"'
Autor:
Zh. Zhang
Publikováno v:
Energies, Vol 15, Iss 16, p 5902 (2022)
This paper started with the explanation of the conditions for using the momentum equation and with the presentation of the actuator disc theory. Focusing on the flow model used in actuator disk theory, both the Froude-Rankine theorem and Betz’s law
Externí odkaz:
https://doaj.org/article/06792a8787504ef99a7e0311d72a0326
Publikováno v:
Journal of Applied Spectroscopy. 89:705-711
Publikováno v:
Nanotechnologies in Construction A Scientific Internet-Journal. 14:198-204
Publikováno v:
Journal of Applied Spectroscopy
Hepatitis infections represent a major health concern worldwide. Numerous computer-aided approaches have been devised for the early detection of hepatitis. In this study, we propose a method for the analysis and classification of cases of hepatitis-B
Autor:
Zh. Zhang
Publikováno v:
Journal of Hydrodynamics. 33:282-300
To make the Kaplan turbine technology comparable to both the Pelton and the Francis turbine, the master equation for the Kaplan turbine has been established by analyses similar to that for the Francis turbine. The analysis begins with the description
Publikováno v:
Physical Chemistry Chemical Physics. 22:1511-1524
The transcriptional regulator TtgR belongs to the TetR family of transcriptional repressors. It depresses the transcription of the TtgABC operon and itself and thus regulates the extrusion of noxious chemicals with efflux pumps in bacterial cells. As
Publikováno v:
Kinetics and Catalysis. 59:618-627
A Mo-promoted Zn/HZSM-5 catalyst was prepared by isometric impregnation method (IM). The physicochemical properties of catalysts were characterized by X-ray diffraction, registration of N2 adsorption-desorption isotherms, transmission electron micros
Autor:
Zh. Zhang
Publikováno v:
Journal of Hydrodynamics. 30:203-217
The master equation of the Francis turbine is derived based on the combination of the angular momentum (Euler) and the energy laws. It relates the geometrical design of the impeller and the regulation settings (guide vane angle and rotational speed)
Autor:
Zh. Zhang
Publikováno v:
Journal of Hydrodynamics. 30:140-152
An analytical method is presented, which enables the non-uniform velocity and pressure distributions at the impeller inlet of a pump to be accurately computed. The analyses are based on the potential flow theory and the geometrical similarity of the
Publikováno v:
Neurophysiology. 49:246-253
We examined the expression of vascular endothelial growth factor (VEGF) and characteristics of human neural stem cells after transfection with the lentiviral vector encoding the VEGF 165 gene. The latter gene was amplified from the human breast cance