Zobrazeno 1 - 10
of 235
pro vyhledávání: '"RongLin Li"'
Publikováno v:
Food Production, Processing and Nutrition, Vol 6, Iss 1, Pp 1-13 (2024)
Abstract As a natural product with health benefits, tea powder (TP) is widely used in food processing field. In order to explore sensory evaluation, quality components and antioxidant activities among different types of TP, matcha TP, Huangjinya gree
Externí odkaz:
https://doaj.org/article/8f19c67ee75c4b2797e409f35e564a0e
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 17, Iss 5, Pp 361-368 (2023)
Abstract A simple method is proposed for the realisation of compact dual‐polarised antennas. The aperture area of a dual‐polarised dipole antenna can be reduced by half by surrounding the antenna with a square loop. Based on the method, a broadba
Externí odkaz:
https://doaj.org/article/3f6f7a183c92471f80f0ba6035a5a75c
Autor:
Xinchao ZANG, Ronglin LI
Publikováno v:
Dianxin kexue, Vol 38, Pp 177-186 (2022)
There are two 5G voice solutions, EPS Fallback and VoNR.In the early stage of 5G network construction, 5G base station coverage rate and terminal penetration rate were not high, so EPS Fallback was used as a 5G voice transition solution.At present, w
Externí odkaz:
https://doaj.org/article/63e26acb54e1413fa26007d9f57b0694
Publikováno v:
Frontiers in Marine Science, Vol 10 (2023)
Warm blobs are persistently warmer-than-normal seawaters over the Northeast Pacific (NEP), which cause substantial impacts on marine ecosystems and climate. Recently, the warm blobs occurred consecutively in spring and summer of 2021 and 2022. The wa
Externí odkaz:
https://doaj.org/article/1469d6f214384d9cb9639e6b43768cf9
Publikováno v:
Electronics Letters, Vol 58, Iss 21, Pp 783-785 (2022)
Abstract An ultra‐wideband dual‐polarized antenna with a low profile is proposed for base‐station applications. The dual‐polarized antenna consists of two crossed dipoles, a square patch, and a square meta‐surface. The ultra‐wideband oper
Externí odkaz:
https://doaj.org/article/dbd843bda7484031a850178c7d71e5a5
Publikováno v:
IEEE Access, Vol 8, Pp 195102-195112 (2020)
An embeddable decoupling structure is proposed for massive multiple-input-multiple-output (M-MIMO) antennas in this paper. The embeddable decoupling structure is made up of an end-folded metal strip and a pair of C-shaped metal strips. By introducing
Externí odkaz:
https://doaj.org/article/bb17868235dc4a62acc84c289b20eea5
Publikováno v:
IET Microwaves, Antennas & Propagation, Vol 13, Iss 3, Pp 326-333 (2019)
A novel artificial magnetic conductor (AMC) surface based on spiral strips is proposed, which consists of 9 × 9 AMC cells. Each AMC cell includes a spiral strip to increase its inductance, thus featuring a wide bandwidth of 42% for ±90° reflection
Externí odkaz:
https://doaj.org/article/231fb014e57c4a208aa7bb75dd5ec718
Publikováno v:
Agronomy, Vol 12, Iss 9, p 2168 (2022)
Overuse of chemical fertilizers to maintain tea production has caused many adverse effects in tea plantations and largely hampers the sustainable development of the tea industry. Applying bio-organic fertilizer (BOF) to achieve the goal of sustainabl
Externí odkaz:
https://doaj.org/article/447b85a55a564015b8a1b689923357e7
Publikováno v:
Frontiers in Neuroscience, Vol 14 (2020)
Electroencephalogram (EEG) signals contain valuable information about the different physiological states of the brain, with a variety of linear and nonlinear features that can be used to investigate brain activity. Monitoring the depth of anesthesia
Externí odkaz:
https://doaj.org/article/137be52d00214eeea4d5823ef628e5e3
Publikováno v:
International Journal of Antennas and Propagation, Vol 2017 (2017)
A broadband vertically/horizontally (V/H) dual-polarized antenna is proposed for mobile communication base stations. The antenna consists of two perpendicularly placed broadband planar antenna elements. By shaping the reflector for V/H dual-polarized
Externí odkaz:
https://doaj.org/article/e72cdcc4997c4a40b02637f0a2a2664b