Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Xiumei Shen"'
Publikováno v:
Heliyon, Vol 9, Iss 10, Pp e20681- (2023)
During the global pandemic, COVID-19 patients' activity trajectories and actions emerge as revelatory conduits elucidating their spatiotemporal behavior and transmission dynamics. This study analyzes COVID-19 patients' behavior in Nanjing and Yangzho
Externí odkaz:
https://doaj.org/article/1e9fc2da806a40708e6359e54fc4c38d
Publikováno v:
International Journal of Antennas and Propagation, Vol 2022 (2022)
This article presents a miniaturized wide-angle scanning phased array for fifth-generation (5G) application. A subarray of two closely packed patch antennas on electromagnetic bandgap structure (EBG) ground with the operating bandwidth of 26–29 GHz
Externí odkaz:
https://doaj.org/article/9c10685800ae405997d41ca0645262d6
Autor:
Xiumei Shen
Publikováno v:
PLoS ONE, Vol 17, Iss 8, p e0272458 (2022)
Medical facility equality is a critical metric for determining equal access to medical care. Their spatial distribution is important for effective pandemic treatment and daily prevention in cities. This paper used the Kernel Density Two-Step Floating
Externí odkaz:
https://doaj.org/article/71e49ab628e84ccd9698b23cceda635b
Publikováno v:
IEEE Access, Vol 7, Pp 2759-2768 (2019)
In this paper, an extremely compact two-element linear polarized multiple-input-multiple-output (MIMO) antenna array with a metasurface superstrate is proposed. Instead of using periodic square split-ring resonators which occupy larger space and whic
Externí odkaz:
https://doaj.org/article/254a3d1ad6dc422aac49ff93d25b87b1
Publikováno v:
IEEE Access, Vol 7, Pp 154672-154682 (2019)
An efficient antenna mutual coupling reduction (decoupling) technique using reactively loaded dummy element array for two dual-band closely coupled MIMO antennas is proposed in this paper. This dummy element array comprises three dummy elements, incl
Externí odkaz:
https://doaj.org/article/faf2c2eb284f4b47b7d20292e79b8a7d
Publikováno v:
Buildings, Vol 12, Iss 4, p 470 (2022)
Poor indoor air quality reduces the comfort experienced in the environment and can also harm our physical health. Mechanical ventilation design plays an important role in improving the indoor environment and the safety of public toilets. Therefore, i
Externí odkaz:
https://doaj.org/article/1c0902aab8924c51916949bef3bd2b58
Publikováno v:
IEEE Access, Vol 6, Pp 38097-38105 (2018)
In this paper, an antenna interference cancellation chip (AICC) with a high-pass response is proposed to mitigate the mutual coupling of two antennas resonating in contiguous frequency bands. Using the most up-to-date low temperature co-fired ceramic
Externí odkaz:
https://doaj.org/article/e097b1df778542128b6a4f5d5206a8a9
Publikováno v:
SSRN Electronic Journal.
Publikováno v:
Building and Environment. 228:109861
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 18:1671-1675
A miniaturized two-element microstrip antenna array is proposed for the millimeter-wave band of fifth generation (5G) wireless communication systems. A surface of electromagnetic bandgap structures (EBG) is applied as the ground for two closely packe