Zobrazeno 1 - 10
of 293
pro vyhledávání: '"horizontal wind"'
Publikováno v:
Journal of Ecological Engineering, Vol 25, Iss 9, Pp 272-281 (2024)
Wind energy is a clean valuable source of renewable electricity when used with specific characteristically turbines because of its inexhaustibility as well as abating the use of fossil fuels. However, studies are still needed to design wind turbines
Externí odkaz:
https://doaj.org/article/27858cf78334420ca83dc2fd69831483
Publikováno v:
地球与行星物理论评, Vol 55, Iss 3, Pp 329-343 (2024)
All-sky meteor radars have become a reliable and widely used tool for observing horizontal winds in the mesosphere and lower thermosphere (MLT) region. This provides vital data support for the study of dynamics in this region. Currently, meteor radar
Externí odkaz:
https://doaj.org/article/31c2bb9099f54757a9bab9b171ea8489
Mesopause temperatures and relative densities at midlatitudes observed by the Mengcheng meteor radar
Publikováno v:
Earth and Planetary Physics, Vol 7, Iss 6, Pp 665-674 (2023)
The atmospheric temperatures and densities in the mesosphere and lower thermosphere (MLT) region are essential for studying the dynamics and climate of the middle and upper atmosphere. In this study, we present more than 9 years of mesopause temperat
Externí odkaz:
https://doaj.org/article/3b53f6b495d642b6892313719368e07f
Autor:
Lintong Li, Jose Escribano-Macias, Mingwei Zhang, Shenghao Fu, Mingyang Huang, Xiangmin Yang, Tianyu Zhao, Yuxiang Feng, Mireille Elhajj, Arnab Majumdar, Panagiotis Angeloudis, Washington Ochieng
Publikováno v:
Sensors, Vol 24, Iss 19, p 6254 (2024)
Wind speed affects aviation performance, clean energy production, and other applications. By accurately predicting wind speed, operational delays and accidents can be avoided, while the efficiency of wind energy production can also be increased. This
Externí odkaz:
https://doaj.org/article/c47879d4e0434cb28eba0590c20f5715
Publikováno v:
Earth and Space Science, Vol 11, Iss 4, Pp n/a-n/a (2024)
Abstract Large horizontal winds and shears across the mesopause region have been observed by sounding rockets and satellites but with limited simultaneous temperature profiles to date. This feature is critical to the diagnosis of the insitu dynamic c
Externí odkaz:
https://doaj.org/article/e124c97cd2c441b99c3f4c0c449cd44a
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 3, Pp n/a-n/a (2024)
Abstract Understanding the diurnal variation of horizontal wind in the atmospheric boundary layer is important for weather and climate research and wind energy applications. Here we analyze the hourly data from 91 wind profiler radar sites in China a
Externí odkaz:
https://doaj.org/article/f7b5e6f35d194fbf995f19f1d42507a3
Publikováno v:
International Journal of Technology, Vol 14, Iss 1, Pp 5-14 (2023)
Turbines are efficient power generators. Because wind energy is a clean fuel source, it is widely utilized in some regions. One of the major factors affecting wind turbine performance is the angle of attack of the blade. The aerodynamics and effic
Externí odkaz:
https://doaj.org/article/82258c5fd86b4ab1b041f5aad544cefb
Autor:
BaoZhu Zhou, XiangHui Xue, Wen Yi, HaiLun Ye, Jie Zeng, JinSong Chen, JianFei Wu, TingDi Chen, XianKang Dou
Publikováno v:
Earth and Planetary Physics, Vol 6, Iss 5, Pp 451-464 (2022)
A meteor radar chain located along the 120°E meridian in the Northern Hemisphere from low to middle latitudes provides long-term horizontal wind observations of the mesosphere and lower thermosphere (MLT) region. In this study, we report a seasonal
Externí odkaz:
https://doaj.org/article/81c97a543650447ab71595cacf86fa34
Publikováno v:
Aerospace, Vol 10, Iss 10, p 902 (2023)
This paper investigates the aerodynamic performance of an overlapping octocopter with the effect of horizontal wind ranging from 0 to 4 m/s using both low-speed wind tunnel tests and numerical simulations. The hovering efficiency and the potential co
Externí odkaz:
https://doaj.org/article/aaffdd2e079445bbb94205ed7644543f
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