Zobrazeno 1 - 10
of 173
pro vyhledávání: '"Yuanqing Chen"'
Publikováno v:
Digital Communications and Networks, Vol 10, Iss 5, Pp 1471-1479 (2024)
To resist various types of jamming in wireless channels, appropriate constellation modulation is used in wireless communication to ensure a low bit error rate. Due to the complexity and variability of the channel environment, a simple preset constell
Externí odkaz:
https://doaj.org/article/f57df38e300243b0bd49c88794012f26
Autor:
Yuanqing Chen, Akelamjiang. maimait, Jianjun Cheng, Yanfu Duan, Dawei Yin, Hongguang Dong, Yupeng Li
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03503- (2024)
Against the backdrop of saline soil solidification and the resource utilization of solid waste and aeolian sand in cold and arid regions, this study employs locally accessible fly ash and aeolian sand to solidify saline soil. By combining unconfined
Externí odkaz:
https://doaj.org/article/8fe64fd5a12445d689b945336d31c1a5
Publikováno v:
Advances in Civil Engineering, Vol 2024 (2024)
As the weakest link in the shield segment, the reinforcement and repair technology of shield segment joint has received widespread attention. In this study, an finite element model utilizing a cohesive zone model (CZM) was constructed to simulate the
Externí odkaz:
https://doaj.org/article/680de75f38774e20921d0835005f2def
Autor:
Yuanqing Chen, Sinan Xu, Weining Liu, Zhen Zhang, Tianbang Yang, Xiao Xiao, Xiguang Deng, Jiangtao Li, Huiqiang Yao, Zijun Wu
Publikováno v:
Frontiers in Marine Science, Vol 10 (2024)
Quantitatively assessing the porewater dissolved inorganic carbon (DIC) cycling in methane-enriched marine sediments is crucial to understanding the contributions of different carbon sources to the global marine carbon pool. In this study, Makran acc
Externí odkaz:
https://doaj.org/article/f0fa5eb89c0e420290088da91aca4fef
Publikováno v:
Frontiers in Psychology, Vol 13 (2022)
BackgroundExisting research indicates that job satisfaction has effects on job performance, but little evidence exists about the mechanism through which the satisfaction-performance association operates. This study aims to examine the effect of job s
Externí odkaz:
https://doaj.org/article/cb83c42edef4483aaf224eefff2f9cd6
Publikováno v:
Frontiers in Public Health, Vol 10 (2022)
BackgroundThe COVID-19 pandemic has made many countries adopt restrictive measures like home quarantine. Children were required to study at home, which made parents worried about the rapid myopic progression of their children. To compare myopia progr
Externí odkaz:
https://doaj.org/article/91ceab3eb11345ff91152fcb0ca653cd
Publikováno v:
IEEE Access, Vol 7, Pp 177607-177615 (2019)
Millimeter-Wave (mmWave) antennas for 5G mobile terminals require a wide bandwidth, large-angle beam scanning, low-profile design, and multi-substrate compatibility for module-level integration. In this paper, we propose one candidate design employin
Externí odkaz:
https://doaj.org/article/6b1f326282fa465895ab1d849e8871a0
Publikováno v:
IEEE Access, Vol 7, Pp 167470-167480 (2019)
A dual-functional antenna array operating in the long term evolution (LTE) band 42 (3.4-3.6 GHz) and 5.8-GHz wireless wide area network (WLAN) band (5.725-5.875 GHz) for multiple-input multiple-output (MIMO) applications in 5G smartphones is proposed
Externí odkaz:
https://doaj.org/article/753c301c4e2e417eb2358a922fc1c950
Publikováno v:
IEEE Access, Vol 7, Pp 171684-171690 (2019)
In this paper, a K-band antenna with ±60° beam scanning is proposed for a mmWave (millimeter-Wave) radar sensor. Especially, we take advantages of the magnetic dipole principle, and design the antenna by employing via holes in three sides, so as to
Externí odkaz:
https://doaj.org/article/4c0d75eba3c441ddae4406897f6a1a49
Autor:
Dahiru M. Sanni, Yuanqing Chen, Aditya S. Yerramilli, Esidor Ntsoenzok, Joseph Asare, Sharafadeen A. Adeniji, Omolara V. Oyelade, Adebayo A. Fashina, T. L. Alford
Publikováno v:
Materials for Renewable and Sustainable Energy, Vol 8, Iss 1, Pp 1-10 (2018)
Abstract In this study, we reported a low-temperature, one-step solution process to fabricate perovskite solar cells using dehydrated lead acetate as the lead source. These perovskite films were aged at 200 s before thermal annealing at 90 °C for 5
Externí odkaz:
https://doaj.org/article/e761319fdf06479ebe73b2ff59977164