Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Zheyu Shi"'
Publikováno v:
Ecological Indicators, Vol 153, Iss , Pp 110411- (2023)
Ecosystem services (ESs) are critical to human welfare and play an important role in supporting sustainable social and economic development. Climate change (CLC) and land use change (LUCC) are two of the most important factors influencing ESs. Howeve
Externí odkaz:
https://doaj.org/article/0ea09f2316c34263ae4486db664ebee8
Autor:
Renxiang ZHAI, Zheyu SHI
Publikováno v:
Haiyang Kaifa yu guanli, Vol 39, Iss 4, Pp 43-49 (2022)
In order to promote China′s energy conservation and emission reduction and advance high-quality economic development, this paper analyzed the relationship between green technology innovation and energy efficiency in China′s coastal areas, empiric
Externí odkaz:
https://doaj.org/article/66b97013f54849d78c1e3130c888d055
Publikováno v:
International Journal of Aerospace Engineering, Vol 2022 (2022)
When a helicopter rotor undergoes flow separation, the drag of the rotor increases substantially, as does the power demand, which seriously affects the aerodynamic performance and flight safety of the helicopter. Therefore, it is crucial to research
Externí odkaz:
https://doaj.org/article/44b53572c6a1438a9bfdf78b3fd63353
Publikováno v:
International Journal of Aerospace Engineering, Vol 2021 (2021)
This study presents a stereophotogrammetry approach to achieve full-field displacement measurements of helicopter rotor blades. The method is demonstrated in the wind tunnel test of a 2 m diameter rotor, conducted at the 5.5 m×4 m Aeroacoustic Wind
Externí odkaz:
https://doaj.org/article/c6e86c15175a41ac9419083a34d675e4
Publikováno v:
Actuators, Vol 11, Iss 2, p 46 (2022)
Dynamic stall is a critical limiting factor for airfoil aerodynamics and a challenging problem for active flow control. In this experimental study, dynamic stall was measured by high-frequency surface pressure tapes and pressure-sensitive paint (PSP)
Externí odkaz:
https://doaj.org/article/95515b18b9d54ab1baf58fcb8e3871a6
Publikováno v:
Journal of Visualization. 26:45-59
Publikováno v:
Environmental Engineering Research; Dec2023, Vol. 28 Issue 6, p1-10, 10p
Publikováno v:
Chinese Journal of Aeronautics. 35:169-184
The decrease in aerodynamic performance caused by the shock-induced dynamic stall of an advancing blade and the dynamic stall of a retreating blade at low speed and high angles of attack limits the flight speed of a helicopter. However, little resear
Publikováno v:
Environmental Engineering Research. 28:220681
Ozone injection is an effective way to oxidate Hg0 in flue gas. The reacting flow field for the oxidation of Hg0 by O3 is numerically studied in detail with a reduced chemical mechanism in this paper. Based on sensitivity analysis with detailed chemi
Publikováno v:
Plasma Science and Technology. 25:015506
An experimental system was established to explore the plasma flow control effect for helicopter rotors in hover mode. With the plasma actuator applied at the leading edge of the rotor blades, alternating current dielectric barrier discharge (AC-DBD)