Search

Your search keyword '"Xue, Chunhua"' showing total 120 results
Start Over Author "Xue, Chunhua" Publication Year Range Last 50 years
120 results on '"Xue, Chunhua"'

4. Prediction of interface states in liquid surface waves with one-dimensional modulation

Author

Shi, Xi, Sun, Yong, Xue, Chunhua, and Hu, Xinhua

Subjects
Physics - Classical Physics
Abstract

We theoretically studied the interface states of liquid surface waves propagating through the heterojunctions formed by a bottom with one-dimensional periodic undulations. Via considering the periodic structure as a homogeneous one, our systematic study shows that the signs of the effective depth and gravitational acceleration are opposite within the band gaps no matter the structure is symmetric or asymmetric. Those effective parameters can be used to predict the interface states which could amplify the amplitudes of liquid surface waves. These phenomena provide new opportunities to control the localization of water-wave energy., Comment: 5 pages, 4 figures

Published
2018
Full Text
View/download PDF

5. Significant enhancement of magneto-optical effect in one-dimensional photonic crystals with magnetized epsilon-near-zero defect

Author

Guo, Zhiwei, Wu, Feng, Xue, Chunhua, Jiang, Haitao, Sun, Yong, Li, Yunhui, and Chen, Hong

Subjects
Physics - Optics
Abstract

Nonreciprocal (NOR) transmission with magneto-optical materials plays a critical role in a broad range of applications, such as optical isolation, all-optical signal processing, and integrated photonic circuits. The underlying mechanism is that a static magnetic field can break the time-reversal symmetry in the presence of magneto-optical materials. However, the typical NOR devices usually need a large size because the weak magneto-optical activity of materials. Here, our theoretical investigations show that the NOR transmission can be obtained in the one-dimensional photonic crystal with a magnetized epsilon-near-zero (ENZ) defect due to strong field localization in the ENZ medium. The inherent weak magneto-optical activity is significantly enhanced in ENZ medium. In our configuration, the wavelength shift of transmission peaks along two opposite incident directions can be up to 100 times higher than that in the case that the defect layer is a normal bismuth iron garnet. Such results will provide a new degree to design novel magneto-optical devices with small size, and may open novel routes to exploit advanced materials for steering the electromagnetic waves in nano-scale structures.

Published
2018

6. Photonic Spin Hall Effect in Waveguides Composed of Two Types of Single-Negative Metamaterials

Author

Guo, Zhiwei, Jiang, Haitao, Long, Yang, Yu, Kun, Ren, Jie, Xue, Chunhua, and Chen, Hong

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Physics - Optics
Abstract

The polarization controlled optical signal routing has many important applications in photonics such as polarization beam splitter. By using two-dimensional transmission lines with lumped elements, we experimentally demonstrate the selective excitation of guided modes in waveguides composed of two kinds of single-negative metamaterials. A localized, circularly polarized emitter placed near the interface of the two kinds of single-negative metamaterials only couples with one guided mode with a specific propagating direction determined by the polarization handedness of the source. Moreover, this optical spin-orbit locking phenomenon, also called the photonic spin Hall effect, is robust against interface fluctuations, which may be very useful in the manipulation of electromagnetic signals., Comment: 6 figures, published in Scientific Reports, See https://www.nature.com/articles/s41598-017-08171-y

Published
2017
Full Text
View/download PDF

9. Microwave Metalens Antennas

Author

Chen, Zhi Ning, primary, Li, Teng, additional, Qing, Xianming, additional, Shi, Jin, additional, Li, Shunli, additional, Su, Yuanyan, additional, Liu, Wei E. I., additional, Xue, Chunhua, additional, Lou, Qun, additional, Jiang, Zhi Hao, additional, Xu, Ruolei, additional, Liu, Peiqin, additional, and Sheng, Huiwen, additional

Published
2023
Full Text
View/download PDF

10. Incidence of active tuberculosis in individuals with latent tuberculosis infection in rural China: follow-up results of a population-based, multicentre, prospective cohort study

Author

Kong, Wen, Chen, Cheng, Wang, Yuejin, Gong, Fengqiu, Guo, Lili, Huang, Zhonghui, Shao, Wenjuan, Sun, Ping, Xue, Chunhua, Zhu, Yiqing, Jiang, Weiping, Gui, Yaxiang, Wang, Hao, Yang, Ping, Yao, Ruiyong, Yin, Wenhua, Chao, Nong, Jiang, Tao, Qian, Baima village:Qinxiao, Shi, Hongqin, Tao, Yungen, Wu, Meiqin, Yang, Yuping, Zhang, Dongmei, Zhang, Guoxian, Wang, Jianguo, Chen, Xiaojun, Ding, Zhaosheng, Fu, Huajie, Hang, Li, Huang, Yu, Jiang, Huiping, Jiang, Huaxin, Li, Junlian, Liu, Baoxia, Pan, Lijun, Shao, Caiyun, Tan, Huixia, Tan, Qiuwei, Wang, Weizhong, Yang, Jianping, Yi, Meiqin, Yin, Qianlu, Yuan, Hua, Zhang, Weixing, Zhu, Hong, Fei, Haojun, Jiang, Liwei, Li, Wenhong, Shen, Zhaoer, Sun, Xiaomei, Tang, Wenjuan, Wang, Mingming, Wu, Jinlong, Zhang, Songqing, Zhang, Xiaozhong, Guan, Ling, Guan, Xueling, Liu, Wantong, Cui, Wei, Lei, Zhaokuan, Wang, Yongming, Yu, Yongmin, Song, Liucun, Wang, Tao, Li, Xiaolong, Luo, Jianrong, Wang, Hebin, Liu, Weiguo, Zhang, Fude, Zhang, Fang, Wang, Yongfu, Zhao, Qingna, Liu, Yinbiao, Li, Jianli, Dan, Liujie, Wang, Dakuan, Yan, Jiaoxia, Zhu, Guofu, Liu, Zisen, He, Zhoulun, Yan, Yongfen, Li, Ping, Shang, Huailiang, Heng, Baichao, Liu, Shuli, Ran, Zhe, Jiang, Kun, Zhu, Xin, Wu, Haibin, Liang, Liling, Yuan, Jianhui, Wang, Zhigang, Meng, Aijing, Wang, Jing, Guan, Xia, Yang, Jiannan, Li, Yan, Liu, Haixia, Wang, Wuying, Liu, Xinhao, Qiao, Fuke, Li, Xianmin, Zhao, Herong, Zhu, Chunyuan, Lu, Yanan, Liu, Ning, Peng, Yanan, Wan, Li, Chen, Hairui, Song, Xiaoming, Lou, Qingtao, Wang, Wei, Liu, Changshui, Zhang, Lijuan, Zhang, Zhanjiang, Yuan, Shijie, Yang, Yongxin, Chen, Suqin, Dong, Changjie, Ran, Jianguo, Wu, Weiling, Li, Zhen, Zhang, Hui, Duan, Liujia, Yang, Fan, Liu, Ying, Wang, Kun, Yan, Lina, Ma, Jiangli, Wan, Liuyan, Li, Yanfen, Wang, Han, Yuan, Bing, Du, Ruiling, Zhang, Jie, Zhang, Jingge, Li, Lin, Zhao, Aihua, Wei, Junhong, Zhao, Ning, Zhu, Yonghui, Mao, Wuyi, Luo, Qi, Huang, Zhongpu, Guo, Hongbin, Zheng, Na, Pan, Weiwei, Qin, Meng, Li, Ying, Xiao, Shanshan, Zhang, Yun, Wu, Weiying, Li, Jing, Song, Liusen, Tang, Yi, Yao, Qineng, Yang, Kunyun, Kuang, Meixiong, Bao, Changlin, Xiao, Tao, Wan, Yanping, Wan, Xiaojie, Liu, Binbin, Jiang, Tieliu, Zhang, Xiaoping, Tan, Zhen, Zhang, Xiaobing, Liu, Zhaoguo, Chen, Zhenhua, Wang, Yu, Yu, Yanyan, Dai, Saibo, Hu, PeiLei, Zhang, Chuanfang, Li, Yanhong, Gong, Dehua, Liu, Liqin, Li, Xiaohong, Ling, Jie, Shan, Xinhua, Zhang, Z huo, Deng, Haibing, Zeng, Zhengbiao, Li, Honghua, Zhou, Shuiping, Xu, Ying, Zhang, Can, Chen, Haifeng, Wang, Xiaoling, Chen, Yao, Yang, Sheng, Peng, Weiping, Sun, Huan, Liao, Hui, Xie, Xiping, Liang, Fang, Hu, Cheng, Hu, Siwei, Liu, Xinyu, Peng, Jun, Liu, Wenxin, Liu, Decheng, Liu, Wenbin, Li, Xiangmei, Guo, Hui, Wang, Wen, He, Yujue, Wang, Bo, Zhang, Yaping, Gao, Qiaofen, Zhao, Jianxi, Chen, Weitao, Li, Qing, Mu, Taojun, Liang, Qijun, Gu, Jixiu, Ma, Ling, An, Ning, Li, Junwen, Yao, Qinhua, Liang, Chengzhi, Ge, Xiuqun, Chen, Yalin, Luan, Shumao, Sun, Yanhong, Yang, Ruifang, Ma, Bin, Zhang, Suiqiang, Liang, Fusheng, Tian, Yuan, Zhang, Hongxia, Yang, Fanqin, Lu, Qifeng, Chen, Jun, Dong, Yan, Zhang, Shunsheng, Jin, Ziming, Wang, Jintao, Lan, Jianwei, Zhang, Zhanjun, Wu, Yumin, Shi, Jianlin, Shi, Zhaoping, Chen, Yan, Ding, Jianxin, An, Xiaofeng, Yang, Jun, Ling, Dongdong, Nie, Zhenzhou, Liu, Chunli, Mi, Guangyin, Ma, Jun, Guo, Jiyun, Gao, Lei, Li, Xiangwei, Liu, Jianmin, Wang, Xinhua, Lu, Wei, Bai, Liqiong, Xin, Henan, Zhang, Haoran, Li, Hengjing, Zhang, Zongde, Ma, Yu, Li, Mufei, Feng, Boxuan, Du, Jiang, Sui, Hongtao, Zhao, Rong, Su, Haoxiang, Pan, Shouguo, Shen, Fei, He, Jian, Yang, Shumin, Si, Hongyan, Cheng, Xu, Xu, Zuhui, Tan, Yunhong, Chen, Tianzhu, Xu, Weiguo, Peng, Hong, Wang, Zhijian, Zhu, Tao, Chen, Xiaoyou, Zhou, Xinhua, and Jin, Qi

Published
2017
Full Text
View/download PDF

12. An Ultrathin, Dual-Band, and Dual-Polarized Metalens Antenna Based on Double-Resonant Huygens’ Metasurface

Author

Jiang, Xiaowen, Xue, Chunhua, Yan, Junjie, Li, Ruxue, Li, Teng, and Gao, Xi

Abstract

In this letter, we demonstrate a double-resonant Huygens’ metasurface. The double Huygens’ resonances serve as the bridges connecting several nonresonant passbands, achieving good transmission performance over an ultrawideband range and available transmission phase coverage far beyond 360°. Then, a dual-band dual-polarized 3-bit phase scheme is proposed to independently obtain sufficient phase coverages at 28/38 GHz. When used for planar lens antenna design, good dual-band radiation performance is achieved. In the 28 GHz band, the measured peak gain is 29.14 dBi at 28.5 GHz with an aperture efficiency of 44.87% and a 3 dB gain bandwidth of 18.2%. In the 38 GHz band, the measured peak gain is 32.03 dBi at 38 GHz with an aperture efficiency of 47.25% and a 3 dB gain bandwidth of 8.7%.

Published
2024
Full Text
View/download PDF

32. An Ultrathin Dual-Band Huygens’ Meta-Lens Antenna With Orthogonal Linear Polarization

Author

Xue, Chunhua, Cao, Shuo, Li, Teng, and Gao, Xi

Abstract

An ultrathin, dual-band, orthogonally linearly polarized Huygens’ metasurface has been proposed which can be used for 28/38 GHz dual-band lens antenna. It is composed of two types of linearly polarized Huygens' elements spatially interleaved along the orthogonal direction. They work in different frequency bands and have almost no interaction, achieving independent full-phase manipulation capabilities in their respective frequency bands. Then, a double-layer dual-band meta-lens antenna is designed, manufactured and measured. At 28/38 GHz, high gains of 30.61 and 31.99 dBi are achieved, respectively, which corresponds to antenna efficiencies of 54.2% and 40.7%. The 3-dB gain bandwidths are 7.5% and 8.6% in two band, respectively. The simulated and measured results consistently show good dual-band radiated performance of meta-lens. The proposed Huygens’ meta-lens antenna has important applications in the field of antenna engineering.

Published
2023
Full Text
View/download PDF

33. Significant enhancement of magneto-optical effect in one-dimensional photonic crystals with a magnetized epsilon-near-zero defect.

Author

Guo, Zhiwei, Wu, Feng, Xue, Chunhua, Jiang, Haitao, Sun, Yong, Li, Yunhui, and Chen, Hong

Subjects
MAGNETOOPTICS, PHOTONIC crystals, PHOTONIC band gap structures, ELECTROMAGNETIC waves, SIGNAL processing
Abstract

Optical nonreciprocal transmission possesses a broad range of applications such as optical isolation, all-optical signal processing, and integrated photonic circuits. The main underlying mechanism is that a static magnetic field can break the time-reversal symmetry in the presence of magneto-optical materials. However, the typical devices usually need a large size because the magneto-optical activity of materials is weak. In this paper, we realize strong nonreciprocal transmission in a one-dimensional photonic crystal with a magnetized epsilon-near-zero defect. The inherent weak magneto-optical activity is significantly enhanced in the magnetized epsilon-near-zero defect because of the field intensity enhancement mechanism. Our results show that the wavelength shift of transmission peaks along two opposite incident directions can be up to 100 times higher than that in the case of a bismuth-iron-garnet defect. These results provide a new perspective to design novel magneto-optical devices with a small size and open novel routes to exploit advanced materials for steering the electromagnetic waves in nano-scale structures. [ABSTRACT FROM AUTHOR]

Published
2018
Full Text
View/download PDF

37. Production Practice of Improving Copper-Sulfur Flotation System Indexes of a Copper-Tin Polymetallic Ore.

Author

XUE Chunhua and ZENG Yanyan

Abstract

A symbiotic and polymetallic ore containing copper and tin in Yunnan province is complex and the metallic copper and tin, and sulfur were mainly recovered. The oxidation rate of copper has increased and the recovery of copper has become difficult with continuous exploitation of the ore. Therefore, it was unsatisfactory that copper-sulfur flotation separation was carried out to obtain a qualified concentrate. The problems existing in the copper-sulfur flotation system were analyzed in detail according to the practical production. It was proposed to optimize the cyclone selection and operating parameters, to improve equipment configuration and reagent system in bulk roughers, to adjust reagent system in copper-sulfur separation roughers and the amount of grinding medium that were added into tower mill. The Cu grade and recovery in copper concentrate were improved by 3.34 and 3.76 percentage points, respectively. The copper-sulfur flotation system has reached the production standard and achieved good economic benefits for the mine. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

49. Incidence of active tuberculosis in individuals with latent tuberculosis infection in rural China: follow-up results of a population-based, multicentre, prospective cohort study

Author

Gao, Lei, primary, Li, Xiangwei, additional, Liu, Jianmin, additional, Wang, Xinhua, additional, Lu, Wei, additional, Bai, Liqiong, additional, Xin, Henan, additional, Zhang, Haoran, additional, Li, Hengjing, additional, Zhang, Zongde, additional, Ma, Yu, additional, Li, Mufei, additional, Feng, Boxuan, additional, Du, Jiang, additional, Sui, Hongtao, additional, Zhao, Rong, additional, Su, Haoxiang, additional, Pan, Shouguo, additional, Guan, Ling, additional, Shen, Fei, additional, He, Jian, additional, Yang, Shumin, additional, Si, Hongyan, additional, Cheng, Xu, additional, Xu, Zuhui, additional, Tan, Yunhong, additional, Chen, Tianzhu, additional, Xu, Weiguo, additional, Peng, Hong, additional, Wang, Zhijian, additional, Zhu, Tao, additional, Chen, Xiaoyou, additional, Zhou, Xinhua, additional, Guan, Xueling, additional, Jin, Qi, additional, Kong, Wen, additional, Chen, Cheng, additional, Wang, Yuejin, additional, Gong, Fengqiu, additional, Guo, Lili, additional, Huang, Zhonghui, additional, Shao, Wenjuan, additional, Sun, Ping, additional, Xue, Chunhua, additional, Zhu, Yiqing, additional, Jiang, Weiping, additional, Gui, Yaxiang, additional, Wang, Hao, additional, Yang, Ping, additional, Yao, Ruiyong, additional, Yin, Wenhua, additional, Chao, Nong, additional, Jiang, Tao, additional, Qian, Baima village:Qinxiao, additional, Shi, Hongqin, additional, Tao, Yungen, additional, Wu, Meiqin, additional, Yang, Yuping, additional, Zhang, Dongmei, additional, Zhang, Guoxian, additional, Wang, Jianguo, additional, Chen, Xiaojun, additional, Ding, Zhaosheng, additional, Fu, Huajie, additional, Hang, Li, additional, Huang, Yu, additional, Jiang, Huiping, additional, Jiang, Huaxin, additional, Li, Junlian, additional, Liu, Baoxia, additional, Pan, Lijun, additional, Shao, Caiyun, additional, Tan, Huixia, additional, Tan, Qiuwei, additional, Wang, Weizhong, additional, Yang, Jianping, additional, Yi, Meiqin, additional, Yin, Qianlu, additional, Yuan, Hua, additional, Zhang, Weixing, additional, Zhu, Hong, additional, Fei, Haojun, additional, Jiang, Liwei, additional, Li, Wenhong, additional, Shen, Zhaoer, additional, Sun, Xiaomei, additional, Tang, Wenjuan, additional, Wang, Mingming, additional, Wu, Jinlong, additional, Zhang, Songqing, additional, Zhang, Xiaozhong, additional, Liu, Wantong, additional, Cui, Wei, additional, Lei, Zhaokuan, additional, Wang, Yongming, additional, Yu, Yongmin, additional, Song, Liucun, additional, Wang, Tao, additional, Li, Xiaolong, additional, Luo, Jianrong, additional, Wang, Hebin, additional, Liu, Weiguo, additional, Zhang, Fude, additional, Zhang, Fang, additional, Wang, Yongfu, additional, Zhao, Qingna, additional, Liu, Yinbiao, additional, Li, Jianli, additional, Dan, Liujie, additional, Wang, Dakuan, additional, Yan, Jiaoxia, additional, Zhu, Guofu, additional, Liu, Zisen, additional, He, Zhoulun, additional, Yan, Yongfen, additional, Li, Ping, additional, Shang, Huailiang, additional, Heng, Baichao, additional, Liu, Shuli, additional, Ran, Zhe, additional, Jiang, Kun, additional, Zhu, Xin, additional, Wu, Haibin, additional, Liang, Liling, additional, Yuan, Jianhui, additional, Wang, Zhigang, additional, Meng, Aijing, additional, Wang, Jing, additional, Guan, Xia, additional, Yang, Jiannan, additional, Li, Yan, additional, Liu, Haixia, additional, Wang, Wuying, additional, Liu, Xinhao, additional, Qiao, Fuke, additional, Li, Xianmin, additional, Zhao, Herong, additional, Zhu, Chunyuan, additional, Lu, Yanan, additional, Liu, Ning, additional, Peng, Yanan, additional, Wan, Li, additional, Chen, Hairui, additional, Song, Xiaoming, additional, Lou, Qingtao, additional, Wang, Wei, additional, Liu, Changshui, additional, Zhang, Lijuan, additional, Zhang, Zhanjiang, additional, Yuan, Shijie, additional, Yang, Yongxin, additional, Chen, Suqin, additional, Dong, Changjie, additional, Ran, Jianguo, additional, Wu, Weiling, additional, Li, Zhen, additional, Zhang, Hui, additional, Duan, Liujia, additional, Yang, Fan, additional, Liu, Ying, additional, Wang, Kun, additional, Yan, Lina, additional, Ma, Jiangli, additional, Wan, Liuyan, additional, Li, Yanfen, additional, Wang, Han, additional, Yuan, Bing, additional, Du, Ruiling, additional, Zhang, Jie, additional, Zhang, Jingge, additional, Li, Lin, additional, Zhao, Aihua, additional, Wei, Junhong, additional, Zhao, Ning, additional, Zhu, Yonghui, additional, Mao, Wuyi, additional, Luo, Qi, additional, Huang, Zhongpu, additional, Guo, Hongbin, additional, Zheng, Na, additional, Pan, Weiwei, additional, Qin, Meng, additional, Li, Ying, additional, Xiao, Shanshan, additional, Zhang, Yun, additional, Wu, Weiying, additional, Li, Jing, additional, Song, Liusen, additional, Tang, Yi, additional, Yao, Qineng, additional, Yang, Kunyun, additional, Kuang, Meixiong, additional, Bao, Changlin, additional, Xiao, Tao, additional, Wan, Yanping, additional, Wan, Xiaojie, additional, Liu, Binbin, additional, Jiang, Tieliu, additional, Zhang, Xiaoping, additional, Tan, Zhen, additional, Zhang, Xiaobing, additional, Liu, Zhaoguo, additional, Chen, Zhenhua, additional, Wang, Yu, additional, Yu, Yanyan, additional, Dai, Saibo, additional, Hu, PeiLei, additional, Zhang, Chuanfang, additional, Li, Yanhong, additional, Gong, Dehua, additional, Liu, Liqin, additional, Li, Xiaohong, additional, Ling, Jie, additional, Shan, Xinhua, additional, Zhang, Z huo, additional, Deng, Haibing, additional, Zeng, Zhengbiao, additional, Li, Honghua, additional, Zhou, Shuiping, additional, Xu, Ying, additional, Zhang, Can, additional, Chen, Haifeng, additional, Wang, Xiaoling, additional, Chen, Yao, additional, Yang, Sheng, additional, Peng, Weiping, additional, Sun, Huan, additional, Liao, Hui, additional, Xie, Xiping, additional, Liang, Fang, additional, Hu, Cheng, additional, Hu, Siwei, additional, Liu, Xinyu, additional, Peng, Jun, additional, Liu, Wenxin, additional, Liu, Decheng, additional, Liu, Wenbin, additional, Li, Xiangmei, additional, Guo, Hui, additional, Wang, Wen, additional, He, Yujue, additional, Wang, Bo, additional, Zhang, Yaping, additional, Gao, Qiaofen, additional, Zhao, Jianxi, additional, Chen, Weitao, additional, Li, Qing, additional, Mu, Taojun, additional, Liang, Qijun, additional, Gu, Jixiu, additional, Ma, Ling, additional, An, Ning, additional, Li, Junwen, additional, Yao, Qinhua, additional, Liang, Chengzhi, additional, Ge, Xiuqun, additional, Chen, Yalin, additional, Luan, Shumao, additional, Sun, Yanhong, additional, Yang, Ruifang, additional, Ma, Bin, additional, Zhang, Suiqiang, additional, Liang, Fusheng, additional, Tian, Yuan, additional, Zhang, Hongxia, additional, Yang, Fanqin, additional, Lu, Qifeng, additional, Chen, Jun, additional, Dong, Yan, additional, Zhang, Shunsheng, additional, Jin, Ziming, additional, Wang, Jintao, additional, Lan, Jianwei, additional, Zhang, Zhanjun, additional, Wu, Yumin, additional, Shi, Jianlin, additional, Shi, Zhaoping, additional, Chen, Yan, additional, Ding, Jianxin, additional, An, Xiaofeng, additional, Yang, Jun, additional, Ling, Dongdong, additional, Nie, Zhenzhou, additional, Liu, Chunli, additional, Mi, Guangyin, additional, Ma, Jun, additional, and Guo, Jiyun, additional

Published
2017
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results