Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Zhengxiong Zhang"'
Publikováno v:
You-qi chuyun, Vol 41, Iss 1, Pp 21-28 (2022)
Gas pipelines in China have gradually entered the stage of frequent accidents, and gas leakage will increase the safety risk of pipeline operation, even resulting in personnel casualties. By investigating and survey, the progress of researches on the
Externí odkaz:
https://doaj.org/article/3e38c50ce04441469121f847a493af23
Publikováno v:
You-qi chuyun, Vol 40, Iss 7, Pp 834-840 (2021)
The performance of the filter elements configured at the gas station and the user entrance changes dynamically with the service conditions. If the filter element is not cleaned and replaced in time, the gas passing efficiency will be affected serious
Externí odkaz:
https://doaj.org/article/f57ae496980b46b286300737dcb1e3d2
Publikováno v:
Canadian Journal of Forest Research. 50:203-214
To assess the impacts of uncertainty and environmental objectives on the configuration of timber supply networks, we develop a generic multi-period, mixed-integer fuzzy linear programming model with demand uncertainty and two objectives of minimizing
Autor:
Yong Zhou, Panyun Gao, Zhengxiong Zhang, Weiqing Gao, Wei Zhang, Xiu Zhang, Yasutake Ohishi, Wenhui Jiang, Liang Chen, Meisong Liao, Takenobu Suzuki, Peng Wang
Publikováno v:
Optics Communications. 444:63-67
In this work, we demonstrate a wide-spectrum multi-wavelength fiber laser generated by Brillouin-comb assisted four-wave mixing (FWM). The mechanism of the laser is based on the combination of stimulated Brillouin scattering in cavity and multiple FW
Autor:
Hou Xiuying, Jinguo Lin, Xinnian Zhou, Xisheng Hu, Zhengxiong Zhang, Yuying Lin, Xiaoxue Zheng, Rongzu Qiu
Publikováno v:
Ecological Indicators. 96:392-403
The road network is one of the most ubiquitous and significant long-term legacies of all types of human disturbances on the landscape. Taking the upper reaches of the Minjiang River in Fujian Province of southeast China as a case, the spatiotemporal
Autor:
Wei Zhang, Yong Zhou, Weiqing Gao, Shaoqing Liu, Wenwen Dai, Zhengxiong Zhang, Jihong Qiu, Meisong Liao, Wu Chen, Wenhui Jiang, Xiaohui Ma, Liang Tong
Publikováno v:
Optics & Laser Technology. 138:106870
In this paper, tin selenide (SnSe) nanoparticles (NPs) are employed as a saturable absorber (SA) in a passively mode-locked thulium (Tm)-doped fiber laser for the first time. The mode-locked pulse has a central wavelength of 1963 nm and a 3-dB bandwi
Autor:
Xiu Zhang, Meisong Liao, Peng Wang, Wenhui Jiang, Wei Zhang, Panyun Gao, Zhengxiong Zhang, Yasutake Ohishi, Liang Chen, Yong Zhou, Takenobu Suzuki, Weiqing Gao
Publikováno v:
Quantum and Nonlinear Optics VI.
Characteristics of vector beams in mid-infrared waveband are analyzed numerically in an As2Se3 photonic crystal fiber (PCF) with small central hollow core (SCHH), including the mode fields, confinement loss, effective refractive index and chromatic d
Autor:
Yong Zhou, Zhengxiong Zhang, Yasutake Ohishi, Peng Wang, Meisong Liao, Wenhui Jiang, Wei Zhang, Weiqing Gao, Xiu Zhang, Panyun Gao, Liang Chen, Takenobu Suzuki
Publikováno v:
Optical and Quantum Electronics. 51
We investigate the characteristics of optical modes in a new designed hollow-core photonic crystal fiber (PCF) with large modal separation. The large effective refractive index difference between the adjacent second-order vector modes can be maintain
Autor:
Weiqing Gao, Zhengxiong Zhang, Wei Zhang, Yong Zhou, Panyun Gao, Liang Chen, Xiu Zhang, Peng Wang, Wenhui Jiang
Publikováno v:
2019 18th International Conference on Optical Communications and Networks (ICOCN).
We demonstrate a multi-wavelength Brillouin fiber laser based on a dual-ring structure to take advantage of the forward and backward Brillouin gain simultaneously with an injected tunable scanning lasing. We used two erbium-doped fiber amplifiers for