Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Zhiming Yi"'
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
Publikováno v:
Brazilian Journal of Medical and Biological Research, Vol 53, Iss 8 (2020)
The objective of this study was to compare the safety and efficacy of 0.2% hyaluronic acid (HA) topical gel and dexamethasone topical ointment in the treatment of recurrent aphthous ulcers (RAU) in children. This retrospective observational study inc
Externí odkaz:
https://doaj.org/article/b398a9c2a1c644b6a20566168f85780f
Publikováno v:
2022 IEEE International Students' Conference on Electrical, Electronics and Computer Science (SCEECS).
Publikováno v:
2021 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS).
A phased array antenna system with the beam scanning function for the Sub-6 outdoor CPE is presented. The antenna element consists of a pair of dipoles, and the operating frequency is 2.49-3.8 GHz. The gain of a single antenna unit is greater than 8.
Publikováno v:
2021 IEEE 4th International Conference on Electronics Technology (ICET).
A millimeter-wave hybrid beamforming-based (HBF) transceiver designed for small cell has been presented in this paper. A large-scale array for massive MIMO is divided into several subarrays. Every subarray has 16 active elements and adopts analog bea
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
Publikováno v:
2020 International Symposium on Antennas and Propagation (ISAP).
A dual-band antenna is proposed for the 5G millimeter-wave system. The proposed structure consists of two metallic layers and one dielectric substrate including a U-slot patch with additional slots. Dual-band characteristic is produced using slotted
Autor:
Hao Meng, Yusen Yang, Tianyao Shen, Zhiming Yin, Lei Wang, Wei Liu, Pan Yin, Zhen Ren, Lirong Zheng, Jian Zhang, Feng-Shou Xiao, Min Wei
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-12 (2023)
Abstract Copper-based catalysts serve as the predominant methanol steam reforming material although several fundamental issues remain ambiguous such as the identity of active center and the aspects of reaction mechanism. Herein, we prepare Cu/Cu(Al)O
Externí odkaz:
https://doaj.org/article/9709054c54394d979ed044e78d3bb368
Publikováno v:
2020 International Conference on Microwave and Millimeter Wave Technology (ICMMT).
A millimeter wave synthetic aperture radar imaging radar system is built, which is used to research on shallow surface imaging technology. The principle of near-field millimeter-wave imaging is analyzed. By detecting the hidden target under different
Publikováno v:
Brazilian Journal of Medical and Biological Research v.53 n.8 2020
Brazilian Journal of Medical and Biological Research
Associação Brasileira de Divulgação Científica (ABDC)
instacron:ABDC
Brazilian Journal of Medical and Biological Research, Vol 53, Iss 8 (2020)
Brazilian Journal of Medical and Biological Research, Volume: 53, Issue: 8, Article number: e9886, Published: 26 JUN 2020
Brazilian Journal of Medical and Biological Research
Associação Brasileira de Divulgação Científica (ABDC)
instacron:ABDC
Brazilian Journal of Medical and Biological Research, Vol 53, Iss 8 (2020)
Brazilian Journal of Medical and Biological Research, Volume: 53, Issue: 8, Article number: e9886, Published: 26 JUN 2020
The objective of this study was to compare the safety and efficacy of 0.2% hyaluronic acid (HA) topical gel and dexamethasone topical ointment in the treatment of recurrent aphthous ulcers (RAU) in children. This retrospective observational study inc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cc6777557727efcf2ef73f786f7383d
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000800609
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2020000800609