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	Multi-scale spatiotemporal trends and corresponding disparities of PM2.5 exposure in China 期刊论文 OAI收割 ENVIRONMENTAL POLLUTION, 2024, 卷号: 340, 页码: 12 作者: Bai, Yu; Liu, Menghang \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2024/01/02 PM 2.5 exposure Turning point detection Multi -spatial scales Gini index
	Test for Dynamic Range of scientific CCD imaging system 会议论文 OAI收割 Hefei, PEOPLES R CHINA, JUL 25-27, 2018 作者: Liang, Shaolin; Wang, Yongmei; Mao, Jinghua; Jia, Nan; Shi, Entao \| 收藏 \| 浏览/下载：47/0 \| 提交时间：2019/01/31 scientific CCD Dynamic Range Linearity Error SNR linearity critical point minimum exposure point
	Heat transfer and fluid flow of molten pool during selective laser melting of AlSi10Mg powder: Simulation and experiment 期刊论文 OAI收割 JOURNAL OF MANUFACTURING PROCESSES, 2017, 卷号: 26, 页码: 280-289 作者: Ding, Xueping; Wang, Linzhi \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2018/03/15 Selective laser melting Point exposure Heat transfer Fluid flow Simulation
	Methods for separation, identification, characterization and quantification of silver nanoparticles 期刊论文 OAI收割 TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 2012, 卷号: 33, 页码: 95－106 Liu, Jing-fu; Yu, Su-juan; Yin, Yong-guang; Chao, Jing-bo 收藏 \| 浏览/下载：26/0 \| 提交时间：2014/11/04 Characterization Cloud-point extraction Environmental exposure Field-flow fractionation Human exposure Identification Nanomaterial Separation Silver nanoparticle Toxicity
	Modulation transfer function in seeker camera limits resulting from missile flutter caused by aerodynamic force (EI CONFERENCE) 会议论文 OAI收割 2010 2nd International Conference on Industrial Mechatronics and Automation, ICIMA 2010, May 30, 2010 - May 31, 2010, Wuhan, China 作者: Zhang X.; Zhang X.; Zhang X. 收藏 \| 浏览/下载：25/0 \| 提交时间：2013/03/25 The imaging quality of seeker in flight mode has been evaluated through analyzing the effects of missile flutter on optical modulation transfer function (MTF) of the optical system. Firstly the data of transverse vibration has been processed to eliminate the trend term caused by the trajectory then obtained the displacement with two times trapezoidal integration. For the side rotation the high frequency noise interference in the data has been filtered by using five-point moving average method. Took this model as the quivering rule between the object and the image and then analyzed the effects of the transverse vibration and the side rotation on imaging quality through MTF. By calculation the r.m.s value of the image motion caused by missile transverse vibration is 0.026mm and the side rotation angle is 0.0044 . Through the establishment of two modulation transfer functions (MTF) of image random vibration and linear vibration the results show that the image quality had declined and the effect of transverse vibration on image quality is obvious. Through improving the rigidity of the missile and selection of small focal length optical system and shorten the time of exposure can improve the imaging quality of the seeker. 2010 IEEE.
	The study of mapping relation of aeroplane complex motion and image movement and compensation technique (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer Application and System Modeling, ICCASM 2010, October 22, 2010 - October 24, 2010, Shanxi, Taiyuan, China Wei Z.; Wang Y.-Y.; Xue W.-Q.; Dai M. 收藏 \| 浏览/下载：20/0 \| 提交时间：2013/03/25 In order to solve the problem of image blurring due to the image motion which results from the aircraft's motion attitude changes and the relative motion of the camera and aircraft firstly we install linear displacement transducer on the four shock absorbers. By analyzing the displacement values the geometrical relationship between the camera and the aircraft is acquired then relative motion amount between the object and the aircraft is obtained according to the motion and attitude changes. After that making use of geometrical relationship we can calculate the displacement variation of pixels within the camera exposure time. Thereafter taking consider variable motion and non-linear motion as uniform motion in a straight line at the moment of imaging then the model of the blurring image can be established according to the displacement variation of pixels within the camera exposure time and fuzzy point spread function in the two-dimensional movement is built. By using Wiener filtering method with the optimal window the image blurring is eliminated in aerial imaging system. Practice proved that this method can effectively eliminate the image blurring in the aerial imaging system. 2010 IEEE.
	Development and radiance calibration of three-waveband camera (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photonics and Optoelectronics, SOPO 2010, June 19, 2010 - June 21, 2010, Chengdu, China 作者: Wang J.; Liu Y.; Liu Y.; Sun Q.; Liu Y. 收藏 \| 浏览/下载：28/0 \| 提交时间：2013/03/25 An imaging system with three-waveband sharing one lens and an area CCD was developed. By rotating different filters into the beam path the required waveband was selected. The optical system which can image in ultraviolet visible and near infrared region was designed and the signal collecting system was integrated. The optical design and system integration have some advantages such as low cost small size and light in weight. To obtain a high imaging quality the radiation calibration is carried out in order to establish the relation between the average grey level of output image and the input radiance from the integrating sphere. According to the calibration data in experiments the radiation dynamic range and the best working point of the system are determined. The experiment result shows that the dynamic range of the image system is maximal when the exposure time is 8ms in ultraviolet 0.5ms in visible and 0.125ms in near infrared region. 2010 IEEE.
	Interfacial fracture behavior of a thermal barrier coating system under four-point bend loading 期刊论文 OAI收割 Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing, 2008, 卷号: 483-84, 页码: 629-632 Z. X. Chen; Z. G. Wang; F. H. Yuan; S. J. Zhu 收藏 \| 浏览/下载：22/0 \| 提交时间：2012/04/13 thermal barrier coating four-point bend oxidation residual stress failure oxidation evolution stresses exposure layer air