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您的检索式：作者名="Changyong Dou"
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| 1 | Ultrasonic preparation of nano-nickel/activated carbon composite using spent electroless nickel plating bath and application in degradation of 2,6-dichlorophenol显示文摘Ni was effectively recovered from spent electroless nickel(EN) plating baths by forming a nano-nickel coated activated carbon composite. With the aid of ultrasonication, melamine–formaldehyde–tetraoxalyl-ethylenediamine chelating resins were grafted on activated carbon(MFT/AC). Pd Cl2 sol was adsorbed on MFT/AC, which was then immersed in spent electroless nickel plating bath; then nano-nickel could be reduced by ascorbic acid to form a nano-nickel coating on the activated carbon composite(Ni/AC) in situ. The materials present were carefully examined by Fourier transform infrared spectroscopy, X-ray diffraction, field emission scanning electron microscopy, X-ray photoelectron spectroscopy and electrochemistry techniques. The resins were well distributed on the inside and outside surfaces of activated carbon with a size of 120 ± 30 nm in MFT/AC, and a great deal of nano-nickel particles were evenly deposited with a size of 3.8 ± 1.1 nm in Ni/MFT. Moreover, Ni/AC was successfully used as a catalyst for ultrasonic degradation of 2,6-dichlorophenol. | Jingyu Su Guanping Jin Changyong Li Xiaohui Zhu Yan Dou Yong Li Xin Wang Kunwei Wang Qianqian Gu | 2014 | Journal of Environmental Sciences2014，26，11： | 2 |
| 2 | Error analysis of exterior orientation elements on geolocation for a Moon-based Earth observation optical sensor显示文摘The Moon is a potential new platform for Earth observation.The advantages of its large-scale observational scope,long temporal duration,and multi-layer detecting of the Earth will undoubtedly advance our understanding of the Earth system.To carry out the observations from a Moon-based optical sensor,the geolocation error caused by exterior orientation elements need to be investigated.This paper analyses the error effects of exterior orientation elements on geolocation for an optical sensor.To estimate the error,we present a geometric image model and utilise some parameters to measure the image offsets.Through a large number of numerical simulations,the results demonstrate that the image offsets are not obvious influenced by the distance and observation angle at mid-high latitude of the Moon and have linear correlation with the increasing errors of the exterior orientation elements.Further,the relationship between the spatial resolution and errors of exterior orientation elements are revealed.Finally,the error characteristics for Moon-based Earth observation are discussed.It is expected that the conclusion drawn in this paper could support the study of a Moon-based Earth observation optical sensor. | Huadong Guo Hanlin Ye Guang Liu Changyong Dou Jing Huang | 2020 | International Journal of Digital Earth2020，13，3： | 0 |
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