Zobrazeno 1 - 10
of 3 028
pro vyhledávání: '"large aperture"'
Publikováno v:
Light: Advanced Manufacturing, Vol 5, Pp 1-9 (2024)
Interferometry with computer-generated holograms (CGHs) is a unique solution for the highly accurate testing of large-aperture aspheric mirrors. However, no direct testing method for quantifying the measurement accuracy of CGHs has been developed. In
Externí odkaz:
https://doaj.org/article/eb0ba64c46154464b367fb59c9632e39
Autor:
ABHISHEK DANODIA, N.R. PATEL, SURESH KUMAR, R.P. SINGH, ANURAG SATPATHI, PRAKASH CHAUHAN, A. S. NAIN
Publikováno v:
Journal of Agrometeorology, Vol 26, Iss 3 (2024)
Accurate evapotranspiration (ET) assessment is crucial for agricultural water management, encompassing crop water requirements, irrigation scheduling, water budgeting and drought monitoring. This study integrates remote sensing-based surface energy b
Externí odkaz:
https://doaj.org/article/2869d883108c470f85b2618ad76f0bdc
Autor:
Sicong Ye, Ming Xiao, Man-Wai Kwan, Zheng Ma, Yongming Huang, George Karagiannidis, Pingzhi Fan
Publikováno v:
IEEE Open Journal of the Communications Society, Vol 5, Pp 7075-7120 (2024)
Extremely large aperture array (ELAA) represents a paradigm shift in wireless antenna systems, poised to redefine the capabilities of future networks, particularly in the era of the sixth generation (6G) networks. The integration of multiple-input mu
Externí odkaz:
https://doaj.org/article/4d455bb0eae64bef92efb882868367ac
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
Glass-metal hetero-bonding through optical epoxy adhesive is frequently used in opto-mechanics and requires high stability. However, the bonding stability is difficult to achieve and predict in massive use cases, where dozens to thousands of metal pa
Externí odkaz:
https://doaj.org/article/7bfb84604f104539b9a2cd1558a3d213
Publikováno v:
EAI Endorsed Transactions on Industrial Networks and Intelligent Systems, Vol 11, Iss 3 (2024)
This paper aims to develop a distributed channel estimation (CE) algorithm for spatially non-stationary (SNS) channels in extremely large aperture array systems, addressing the issues of high communication cost and computational complexity associated
Externí odkaz:
https://doaj.org/article/c50fafd2021d4e17a6c88888c28077cb
Autor:
Yingli Ha, Yu Luo, Mingbo Pu, Fei Zhang, Qiong He, Jinjin Jin, Mingfeng Xu, Yinghui Guo, Xiaogang Li, Xiong Li, Xiaoliang Ma, Xiangang Luo
Publikováno v:
Opto-Electronic Advances, Vol 6, Iss 11, Pp 1-11 (2023)
Metalenses have gained significant attention and have been widely utilized in optical systems for focusing and imaging, owing to their lightweight, high-integration, and exceptional-flexibility capabilities. Traditional design methods neglect the cou
Externí odkaz:
https://doaj.org/article/a912527ec4934210a7cdceade32b0b81
Autor:
Vicenţiu Iancu, Anda-Maria Talpoşi, Cristina Gheorghiu, Răzvan Ungureanu, Ioan Dăncuş, Dan-Gheorghiţă Matei, Daniel Ursescu
Publikováno v:
High Power Laser Science and Engineering, Vol 12 (2024)
Achieving complex pulses with high-power lasers necessitates rigorous testing of specially designed optical components. The qualification of these components using complementary devices to access both the high-resolution and the large-aperture proper
Externí odkaz:
https://doaj.org/article/dc8ff70e62904b4ba6d6ceef33aa70c8
Publikováno v:
High Power Laser Science and Engineering, Vol 12 (2024)
Large-aperture gratings have significant applications in inertial confinement fusion, immersion lithography manufacturing and astronomical observation. Currently, it is challenging and expensive to manufacture sizable monolithic gratings. Therefore,
Externí odkaz:
https://doaj.org/article/38c3ff38db244c319ad977ae3ce15145
Publikováno v:
Machines, Vol 12, Iss 7, p 448 (2024)
Pointing accuracy is a crucial performance index for a fully steerable large-aperture radio telescope and is subject to external and internal disturbances. Improvement of the antenna’s servo control performance is meaningful for pointing, especiall
Externí odkaz:
https://doaj.org/article/a028f6dd4d0d4f8b9945a0b3951dc48c