Zobrazeno 1 - 10
of 3 093
pro vyhledávání: '"Shen Jia"'
Publikováno v:
Shipin yu jixie, Vol 39, Iss 10, Pp 42-48 (2023)
Objective: The purpose of this study was to investigate the drying characteristics and establish the kinetic model of Antarctic krill during spin-flash drying. The drying experiments were carried out at 120 ℃ to 180 ℃. Methods: Six common thin-la
Externí odkaz:
https://doaj.org/article/6667109ee7464b3ea558fbff83a2d992
Non-orthogonal Multiple Access and Multi-dimension Resource Optimization in EH Relay NB-IoT Networks
Publikováno v:
Jisuanji kexue, Vol 49, Iss 5, Pp 279-286 (2022)
With the rapid development of the narrow band Internet of things (NB-IoT) technology,more and more NB-IoT devices are deployed.However,due to the severe co-channel interference and signal attenuation,it is difficult to guarantee the quality of servic
Externí odkaz:
https://doaj.org/article/996ef4e00d51462cb7425c8f1a10f6bf
Intelligent metasurface with frequency recognition for adaptive manipulation of electromagnetic wave
Autor:
Wang Hai Peng, Li Yun Bo, Li He, Shen Jia Lin, Dong Shu Yue, Wang Shi Yu, Qi Kai Nan, Ma Qian, Jin Shi, Li Si Jia, Cui Tie Jun
Publikováno v:
Nanophotonics, Vol 11, Iss 7, Pp 1401-1411 (2022)
Due to the strong ability of recognizing electromagnetic (EM) environment and adaptively control of EM waves, the intelligent metasurfaces have received great attention recently. However, the intelligent metasurface with frequency recognition for ada
Externí odkaz:
https://doaj.org/article/319cfcead6a94889bf9c33df59799d8e
Autor:
Chenyu Zheng, Hongyan Zhao, Chunguang Qiu, Yaoyao Zou, Liang Wang, Bin Hu, Shen Jia, Chuanbo Shen
Publikováno v:
地质科技通报, Vol 40, Iss 5, Pp 162-172 (2021)
The Cenozoic East African Rift is a typical intracontinental rift at the germination stage of the Wilson cycle, which has long attracted the attention of geologists at home and overseas. The Albert Lake Depression is located at the northern most end
Externí odkaz:
https://doaj.org/article/52a06d2d24d14815b65a85f1ce866c0f
In this paper, we prove the global well-posedness of defocusing 3D quadratic nonlinear Schr\"odinger equation \begin{align*} i\partial_t u + \frac12\Delta u = |u| u, \end{align*} in its sharp critical weighted space $\mathcal F \dot H_x^{1/2}$ for ra
Externí odkaz:
http://arxiv.org/abs/2410.04337
In this paper, an interference cancellation based neural receiver for superimposed pilot (SIP) in multi-layer transmission is proposed, where the data and pilot are non-orthogonally superimposed in the same time-frequency resource. Specifically, to d
Externí odkaz:
http://arxiv.org/abs/2406.18993
Publikováno v:
Yankuang ceshi, Vol 39, Iss 6, Pp 856-865 (2020)
BACKGROUND Currently the analysis methods of organochlorine pesticides and pyrethroids in environment samples are gas chromatography and gas chromatography-mass spectrometry (GC-MS). Gas chromatography with electron capture detector has been widely u
Externí odkaz:
https://doaj.org/article/16b255521a1945bca346ad48e790db21
Publikováno v:
Yankuang ceshi, Vol 39, Iss 6, Pp 816-827 (2020)
BACKGROUND The quantification of trace elements in geological samples depends largely on the analytical methods that require complex chemical pretreatment. High-energy polarized energy-dispersive X-ray fluorescence spectrometry (HE-P-EDXRF) has a con
Externí odkaz:
https://doaj.org/article/7277d8e4e4b748d3af45c85d2e26ab40
Publikováno v:
Yankuang ceshi, Vol 39, Iss 4, Pp 555-565 (2020)
BACKGROUND The contents of silver, tin, boron, molybdenum, and lead in geological samples are extremely important for studying the metallogenic regularity and for geochemical prospecting. Current analytical methods rarely determine silver, tin, boron
Externí odkaz:
https://doaj.org/article/3e70747240dd471ba7edb54e7d890fab
Publikováno v:
Phys. Rev. D 110, no. 6 (2024): 066021
Junction conditions play a crucial role in constructing new gravity solutions. In this paper, we derive the junction condition for gluing together an arbitrary number of spacetimes along a common interface. We develop a geometric technique of reverse
Externí odkaz:
http://arxiv.org/abs/2402.00694