Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Jianjie Zheng"'
Autor:
Fuqing Li, Fufeng Li, Rui Sun, Jianjie Zheng, Xiaozhao Li, Lan Shen, Qiang Sun, Ying Liu, Yukun Ji, Yinhang Duan
Publikováno v:
Energies, Vol 17, Iss 4, p 953 (2024)
This study focuses on the renovation and construction of compressed air energy storage chambers within abandoned coal mine roadways. The transient mechanical responses of underground gas storage chambers under a cycle are analyzed through thermal-sol
Externí odkaz:
https://doaj.org/article/e7cb5c25ea914ccf88868aa61eec1973
Autor:
Ming Li, Suochun Xu, Yang Yan, Haichen Wang, Jianjie Zheng, Yongxin Li, Yongjian Zhang, Junjun Hao, Chao Deng, Xinglong Zheng, Miaomiao Liu, Yang Gao, Xue Wang, Li Xue
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Abstract The aim of this study was to analyze the role of blood biomarkers regarding preoperative inflammation and coagulation in predicting the postoperative in-hospital mortality of patients with type A acute aortic dissection (AAD). A total of 206
Externí odkaz:
https://doaj.org/article/e7ed07b95d1d4dbc931b014dfe0ab09a
Autor:
Jie Chen, Wenyue Zhu, Qiang Liu, Xianmei Qian, Xiaowei Chen, Jianjie Zheng, Tao Yang, Qiuyi Xu, Tengfei Yang
Publikováno v:
Remote Sensing, Vol 15, Iss 2, p 501 (2023)
Aerosol robotic network (AERONET) data from Dongsha Island (20.699N, 116.729E) and Taiping Island (35.90N, 3.03W) over the South China Sea (SCS) from January 2018 to December 2020 were used to analyze and discuss the temporal evolution properties of
Externí odkaz:
https://doaj.org/article/fbb7dd8be7ec4796bd6a4bda4ff8d27e
Publikováno v:
IEEE Access, Vol 8, Pp 116756-116765 (2020)
Broad learning system (BLS) is an effective and efficient incremental learning system without the deep architecture. It has strong feature extraction ability and high computational efficiency. However, it is greatly limited in the applicability of su
Externí odkaz:
https://doaj.org/article/d98f10d73498451b90c87f7fb8496f6f
Publikováno v:
IEEE Access, Vol 7, Pp 99263-99272 (2019)
Traditional feature extraction methods are used to extract the features of signal to construct the fault feature matrix, which exists the complex structure, higher correlation, and redundancy. This will increase the complex fault classification and s
Externí odkaz:
https://doaj.org/article/03bb8bdd575d4d3ba9be9ddfdd17eb5d
Publikováno v:
Atmosphere, Vol 12, Iss 12, p 1553 (2021)
A two-month sampling campaign was carried out from 1 November to 30 December 2019, to investigate the light absorption of aerosols at coastal sites in Qingdao. The average values and standard deviations of the absorption coefficient (OAC) at λ = 106
Externí odkaz:
https://doaj.org/article/d7eb7ea5e26e4e5abc7a32a8425ad07f
Publikováno v:
Symmetry, Vol 11, Iss 8, p 965 (2019)
Vibration signals are used to diagnosis faults of the rolling bearing which is symmetric structure. Stochastic resonance (SR) has been widely applied in weak signal feature extraction in recent years. It can utilize noise and enhance weak signals. Ho
Externí odkaz:
https://doaj.org/article/4eae9ffb206a42c4a2b995f1bbb202b0
Publikováno v:
Symmetry, Vol 11, Iss 6, p 747 (2019)
The bearing system of an alternating current (AC) motor is a nonlinear dynamics system. The working state of rolling bearings directly determines whether the machine is in reliable operation. Therefore, it is very meaningful to study the fault diagno
Externí odkaz:
https://doaj.org/article/1a84ac54f4914c40b65d15f7239653b2
Autor:
Hui Zhang, Jianjie Zheng, Qiang Liu, Wenyue Zhu, Xianmei Qian, Guisheng Jiang, Shenlong Zha, Qilei Zhang, Hongliang Ma
Publikováno v:
Chinese Physics B.
The accurate spectroscopic data of H2 16O in the 1.1 μm region is particularly important for the study of Earth’s atmosphere. The pure water vapor molecular spectra were measured based on direct laser absorption spectroscopy using a narrow line-wi
Study of water vapor line parameters in the region around 1.1 µm by tunable diode laser spectroscopy
Autor:
Jianjie Zheng, Hongliang Ma, Qiang Liu, Xianmei Qian, Wenyue Zhu, Zhensong Cao, Jie Chen, Tao Yang, Qiuyi Xu
Publikováno v:
Microwave and Optical Technology Letters. 65:1152-1161