Zobrazeno 1 - 10
of 6 019
pro vyhledávání: '"WEI Kai"'
Publikováno v:
Hangkong gongcheng jinzhan, Vol 15, Iss 5, Pp 148-154 (2024)
The aerodynamic noise test of counter-rotating propellers in wind tunnels has the problems of difficult time coordination and high cost. The aerodynamic noise test system of counter-rotating propellers，which is capable of simulating the driving sta
Externí odkaz:
https://doaj.org/article/22269dd690c14de8a8e3775dfb0e2682
Publikováno v:
Hangkong gongcheng jinzhan, Vol 15, Iss 5, Pp 162-171 (2024)
The mechanism of contra-rotating propeller's aerodynamic noise is very complicated，and propeller-driven aircraft is not equipped passive noise reduction components such as nacelle liner to absorb noise during sound transmission，the noise generate
Externí odkaz:
https://doaj.org/article/9365e646437b484fa3ff618835c00cd0
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 8, Pp 151-160 (2024)
In the face of complex flotation site environments and issues such as unclear boundaries caused by the mutual adhesion of flotation froth, existing methods for extracting dynamic features (such as flow velocity and collapse rate) often fail to accura
Externí odkaz:
https://doaj.org/article/73816814b69e4c22b4e291debf526c92
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 5, Pp 60-66 (2024)
Due to the different positions of various sensors during the dense medium separation process, there is a time lag between the main process parameters of dense medium separation and ash content, which affects the results of clean coal ash content. The
Externí odkaz:
https://doaj.org/article/cee511ead40944d6a09284dca438fd7b
Publikováno v:
BMC Plant Biology, Vol 23, Iss 1, Pp 1-20 (2023)
Abstract Background Spring irrigation with freshwater is widely used to reduce soil salinity and increase the soil water content in arid areas. However, this approach requires a huge amount of freshwater, which is problematic given limited freshwater
Externí odkaz:
https://doaj.org/article/985a1823147b465f8a35f4a74b3c3d3a
Autor:
WEI Kai-xuan, FU Ying
Publikováno v:
Jisuanji kexue, Vol 49, Iss 8, Pp 120-126 (2022)
Practical low-light denoising/enhancement solutions often require fast computation,high memory efficiency,and can achieve visually high-quality restoration results.Most existing methods aim to restore quality but compromise on speed and memory requir
Externí odkaz:
https://doaj.org/article/41ae4b967d2342c88db000bdbe1a0863
We explore the potential of conducting an experiment on the Chinese Space Station (CSS) to constrain beyond-the-standard-model (BSM) long-range spin- and velocity-dependent interactions, which are mediated by the exchange of an ultralight $\left(m_{z
Externí odkaz:
http://arxiv.org/abs/2410.12469
Publikováno v:
Gong-kuang zidonghua, Vol 48, Iss 10, Pp 34-39, 54 (2022)
The local static characteristics of coal slime flotation foam image are similar. The dynamic characteristics of flotation foam image are needed for judging some complex working conditions. The existing extraction method for the dynamic features of th
Externí odkaz:
https://doaj.org/article/27341317e24547c795c0249adafd4197
Publikováno v:
Cailiao gongcheng, Vol 49, Iss 8, Pp 81-88 (2021)
The pre-bending specimens were obtained by stamping with complex phase steel CP800, and the effect of pre-bending deformation on microstructure, residual stress and mechanical properties of the steel were studied by using EBSD, X-ray residual stress
Externí odkaz:
https://doaj.org/article/6b3804f6c2b44f8fb5e40b5cc046ae4b
Publikováno v:
Chemical Thermodynamics and Thermal Analysis, Vol 6, Iss , Pp 100040- (2022)
The traditional thermodynamic equation based on heat flow balance without reflecting the variation characteristics of the reaction process. New thermodynamics equation based on energy conservation is established involving multiple complex factors wit
Externí odkaz:
https://doaj.org/article/a372efe78a32474393eb926640161dff