中国科学院机构知识库网格
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A Bounding Surface Plasticity Model Considering Spacing Ratio for Overconsolidated Jointed Soft Rocks 期刊论文  OAI收割
ROCK MECHANICS AND ROCK ENGINEERING, 2020, 卷号: 53, 期号: 1, 页码: 59-69
作者:  
Kang, Xiaosen;  Liao, Hongjian
  |  收藏  |  浏览/下载:19/0  |  提交时间:2021/05/25
Distribution characteristics and controlling factors of vertical joint spacing in sand-mud interbedded strata 期刊论文  OAI收割
JOURNAL OF STRUCTURAL GEOLOGY, 2019, 卷号: 128, 页码: 13
作者:  
Bao, Han;  Zhai, Yong;  Lan, Hengxing;  Zhang, Keke;  Qi, Qun
  |  收藏  |  浏览/下载:81/0  |  提交时间:2020/05/18
Preliminary study on determination of reasonable ratio of spacing to diameter of double tunnels under earthquake 会议论文  OAI收割
Zhuhai, PEOPLES R CHINA, MAR 11-12, 2017
作者:  
Zhou Yongqiang;  Sheng Qian;  Leng Xianlun;  Fu Xiaodong;  Li Nana
  |  收藏  |  浏览/下载:30/0  |  提交时间:2018/06/05
Adsorption of nitrate and nitrite from aqueous solution onto calcined (Mg-Al) hydrotalcite of different Mg/Al ratio 期刊论文  OAI收割
CHEMICAL ENGINEERING JOURNAL, 2012, 卷号: 195, 页码: 241-247
Wan, Dongjin; Liu, Huijuan; Liu, Ruiping; Qu, Jiuhui; Li, Shanshan; Zhang, Jian
收藏  |  浏览/下载:30/0  |  提交时间:2014/11/04
Characteristics of ZnMgO-based metal-semiconductor-metal photodetectors (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Photoelectronic Imaging and Detection, September 9, 2007 - September 12, 2007, Beijing, China
作者:  
Zhang J.;  Li B.;  Li B.;  Li B.;  Zhao Y.
收藏  |  浏览/下载:23/0  |  提交时间:2013/03/25
In recent years  ZnMgO semiconductor alloys  with a direct bandgap tunable between 3.37 eV and 7.8 eV  become one of the most suitable materials for the fabrication of ultraviolet detectors. In this paper  we have fabricated metal-semiconductor-metal photodetectors on 1-m thick Zn 0.8Mg0.2O films. The interdigital metal electrodes are 500 m long and 5 m wide with an interelectrode spacing 2 m  5 m and 10 m  respectively. Zn0.8Mg0.2O films were grown on quartz by ratio frequency magnetron sputtering at 500C. Dark current  spectral responsivity and pulse response were carried out for the devices with different finger pitches. All the photodetectors showed the peak responsivity at 330 nm and the ultraviolet-visible rejection ratio (R330 nm/R400 nm) is more than four orders of magnitude at 3 V bias. For the device with 2 m finger pitch  the detectivity was calculated as 4.21011 cm Hz 1/2/W at 330 nm. Furthermore  the transient response measurement for all devices revealed similar rise time of 10 ns. The 90%-10% fall times are 130 ns  170 ns and 230 ns for the devices with different finger pitches of 2 m  5 m and 10 m  respectively..