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	Transient water and sediment storage of the decaying landslide dams induced by the 2008 Wenchuan earthquake, China 期刊论文 OAI收割 GEOMORPHOLOGY, 2012, 卷号: 171, 页码: 58-68 作者: Fan, Xuanmei; van Westen, Cees J.; Korup, Oliver; Gorum, Tolga; Xu, Qiang \| 收藏 \| 浏览/下载：43/0 \| 提交时间：2018/09/26 Landslide dam Earthquake Magnitude and frequency Sediment budget
	Bed load transport under different streambed conditions - a field experimental study in a mountain stream SCI/SSCI论文 OAI收割 2012 作者: Zhang K. 收藏 \| 浏览/下载：42/0 \| 提交时间：2014/12/24 Bed load transport Streambed structure Mountain stream Underwater observation and Video capturing system doppler current profiler gravel-bed sediment transport bedload transport flow velocity rivers morphology particles magnitude frequency
	Research on method of eliminating accurately mechanical resonance frequency of the theodolite by complex notch filter (EI CONFERENCE) 会议论文 OAI收割 2011 International Conference on System Science, Engineering Design and Manufacturing Informatization, ICSEM 2011, October 22, 2011 - October 23, 2011, Guiyang, China Cai L.-H.; Gao H.-B.; Zhang S.-M.; Ma Q.-K. 收藏 \| 浏览/下载：32/0 \| 提交时间：2013/03/25 In this paper We apply a complex notch filter to eliminate accurately influence of Mechanical resonance frequency on theodolite performance. By comparing magnitude-frequency characteristic of system and notch filter make two frequency characteristics counteract at the mechanical resonance frequency. Experiments show that the method can eliminate accurately mechanical resonance frequency and improve bandwidth and stability of the theodolite. 2011 IEEE.
	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：25/0 \| 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..
	On orbit MTF measurement of remote sensing camera based on wavelet transform (EI CONFERENCE) 会议论文 OAI收割 ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China 作者: Wang X.; Wang X.; Wang X. 收藏 \| 浏览/下载：28/0 \| 提交时间：2013/03/25 High resolution remote sensing images are often applied in many research fields. But there are less research on images quality for an orbit remote sensing camera. The magnitude of the OTF as the modulation transfer function (MTF) is a measure of the 2-D spatial frequency response of the remote sensing camera. In this paper knife-edge technique based on quadratic spline wavelet fast transform algorithm is proposed and applied to generate MTF with a greatly high resolution in horizontal or vertical direction. The result has fully demonstrate the potential applicability and good property of the method to estimate MTF for remote sensing camera.