Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Qiaowei Yuan"'
Publikováno v:
Geofluids, Vol 2022 (2022)
The chemical characteristics of groundwater in the gas coal seam section of the tunnel have rich geological significance. To study the chemical evolution process and controlling factors of groundwater in the gas-bearing coal seam section of the tunne
Externí odkaz:
https://doaj.org/article/d3ad2e32831148eea13d1e5812ce2486
Publikováno v:
Entropy, Vol 24, Iss 11, p 1650 (2022)
In this work, the freezing characteristics of double-droplet impact on three typical wettability surfaces were investigated by coupling the solidification and melting VOF models. Different temperature conditions were adopted to study the influence of
Externí odkaz:
https://doaj.org/article/62798b415b0644cbb0634222fb30e7c7
Publikováno v:
Geofluids, Vol 2021 (2021)
Following tunnel excavation, which is influenced by hydraulic fracturing and geological structure, a series of hydrochemical reactions occur in the karst aquifer, which has a significant impact on groundwater hydrology and the earth process. Based on
Externí odkaz:
https://doaj.org/article/1e9967665884446a93b95914ae029908
Autor:
Qiaowei YUAN
Publikováno v:
IEEE Microwave Magazine. 24:40-48
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2d7ddabe37435cd1ffe228616f3b4ea
https://doi.org/10.1109/mmm.2022.3233509
https://doi.org/10.1109/mmm.2022.3233509
Publikováno v:
IEEE Transactions on Antennas and Propagation. 68:8233-8237
A computationally efficient method which is based on the method of moments (MoM) for numerical analysis of antennas with variable load impedance is proposed. The proposed method deals with both of the variable load impedance and its current as equiva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b5070e5e5a3b84184f59795bbde7b81
https://doi.org/10.1109/tap.2020.2985979
https://doi.org/10.1109/tap.2020.2985979
Autor:
Yunchong Tang, Qiaowei Yuan
Publikováno v:
2022 7th International Conference on Business and Industrial Research (ICBIR).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8bbf4e9d86a07871438220eeb16a74f
https://doi.org/10.1109/icbir54589.2022.9786448
https://doi.org/10.1109/icbir54589.2022.9786448
Autor:
Qiaowei Yuan, Takumi Aoki
Publikováno v:
Wireless Power Transfer. 7:86-94
In this paper, a concise and universal method to calculate the maximum RF (radio frequency) power transfer efficiency between arbitrary multiple transmitters and multiple receivers wireless power transfer (MIMO-WPT) system is presented. The method is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::540d33d8879b15edc4d1e74316d5f2fd
https://doi.org/10.1017/wpt.2020.7
https://doi.org/10.1017/wpt.2020.7
Publikováno v:
2020 International Symposium on Antennas and Propagation (ISAP).
An efficient method of moments for numerical analysis of antennas with variable load impedance is presented. The presented method is a kind of domain decomposition method. A loaded full-matrix equation is decomposed into block matrix equations corres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78b25dac9e689b1ded893969f22ba067
https://doi.org/10.23919/isap47053.2021.9391406
https://doi.org/10.23919/isap47053.2021.9391406
Autor:
Qiaowei Yuan
Publikováno v:
2019 IEEE Asia-Pacific Microwave Conference (APMC).
The maximum power transfer efficiency (MPTE) between multiple transmitting elements and receiving elements (MIMO) has been formulated by using eigenvalues of the matrix based on either Z matrix or S matrix [1]. Now, in this paper, the method is appli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d9619ceb83bf07ffe1bb131bc1deb4b
https://doi.org/10.1109/apmc46564.2019.9038408
https://doi.org/10.1109/apmc46564.2019.9038408
Publikováno v:
Wireless Power Transfer. 5:64-74
Impedance matching is very important to improve transmission efficiency not only for wireless communication but also for wireless power transfer. Lumped reactive elements are usually used in the impedance matching circuit. These reactive components s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34045c762e3fb8eeba7df7804dbd097f
https://doi.org/10.1017/wpt.2017.21
https://doi.org/10.1017/wpt.2017.21