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	A Hybrid Framework for High-Performance Modeling of Three-Dimensional Pipe Networks 期刊论文 OAI收割 ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION, 2019, 卷号: 8, 期号: 10, 页码: 17 作者: Wang, Shaohua; Sun, Yeran; Sun, Yinle; Guan, Yong; Feng, Zhenhua \| 收藏 \| 浏览/下载：45/0 \| 提交时间：2020/05/19 three-dimensional (3D) pipe network building information models (BIM) spatial 3D model (S3M) parallel computing SuperMap GIS
	A Hybrid Framework for High-Performance Modeling of Three-Dimensional Pipe Networks 期刊论文 OAI收割 ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION, 2019, 卷号: 8, 期号: 10, 页码: 17 作者: Wang, Shaohua; Sun, Yeran; Sun, Yinle; Guan, Yong; Feng, Zhenhua \| 收藏 \| 浏览/下载：24/0 \| 提交时间：2020/05/19 three-dimensional (3D) pipe network building information models (BIM) spatial 3D model (S3M) parallel computing SuperMap GIS
	设施蔬菜种植中氮肥施用的环境效应研究学位论文 OAI收割北京: 中国科学院生态环境研究中心, 2019 作者: 赵慧 \| 收藏 \| 浏览/下载：35/0 \| 提交时间：2020/07/30 设施蔬菜氮肥施用环境效应 w Hcn s _veg 模型 MEta 分析 g Reenhouse v EgEtable, n Itrogen Fertilizer Application, Environmental Effect , wHcns_veg Model, m Eta Analysis
	The method on the measurement of the aircraft attitude by the spatial cosines relationship of the single station and planes to the intersection the multi-station of electro-optical theodolite (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Zhao L.-R.; Cao Y.-G. 收藏 \| 浏览/下载：16/0 \| 提交时间：2013/03/25 In order to realize the aircraft attitude measurement The paper advances electro-optical theodolite methods of measuring the aircraft attitude by using the spatial cosines relationship the single station theodolite and how to use intersection of the multi-station theodolite. The single station theodolite was introduced in a measured distance from the aircraft posture information. An exhaustive approach was used to access to the aircraft axis of the feature points and the location in the space was used to obtain space posture parameters. The multi-station theodolite was introduced to get the information of the aircraft flight attitude by method of using planes to the intersection. Two-dimensional image to obtain objective axis by fitting algorithm using Hough transform. And then Calculate the vertical distance of the origin to the target of the central axis and the origin to the target of the central axis of the angle between the normal and the X-axis obtaining the linear equation in the two-dimensional plane. Two-dimensional axis of the target image and the camera system's optical center only identified a space plane. The aircraft yaw axis angle and pitch angle can be obtained by getting the space axis using plains to the intersection method. Experimental results show that attitude angle error of the single station theodolite is less than 1 when its distance is less than 6000m and attitude angle error of the multi-station theodolite is less than 0.6 when its intersection angle is between 30 and 150. In this paper according to test result of precision comparing the mathematical model is correct and the algorithm is reasonable in extracting effective parameters of the aircraft's attitude. 2010 IEEE.
	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：26/0 \| 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.
	Accelerating moment release (amr) before strong earthquakes: a retrospective case study of a controversial precursor 期刊论文 iSwitch采集 Chinese journal of geophysics-chinese edition, 2009, 卷号: 52, 期号: 3, 页码: 691-702 作者: Jiang Chang-Sheng; Wu Zhong-Liang 收藏 \| 浏览/下载：23/0 \| 提交时间：2019/05/10 Yutian m(s)7.3 earthquake Accelerating moment release (amr) Critical-point-like model of earthquakes Seismic moment release mapping
	Boundary Detection Using Open Spline Curve Based on Mumford-Shah Model 期刊论文 OAI收割自动化学报, 2009, 卷号: 35, 期号: 2, 页码: 132-136 作者: Li XM(李小毛); Zhu LL(朱琳琳); Tang YD(唐延东) 收藏 \| 浏览/下载：28/0 \| 提交时间：2012/05/29 Open curve diffusion snake spline curve boundary detection M-S model
	Design of GPS/INS integrated navigation system based on multisensor information fusion (EI CONFERENCE) 会议论文 OAI收割 6th World Congress on Intelligent Control and Automation, WCICA 2006, June 21, 2006 - June 23, 2006, Dalian, China Chunmei H.; Yantao T.; Wanxin S.; Mao L. 收藏 \| 浏览/下载：38/0 \| 提交时间：2013/03/25 Two kinds of design methods of GPS/INS integrated navigation system are presented that is GPS/INS integrative system and integrated navigation system based on information fusion. By analyzing mathematics model of the first system error we found that inertia velocity error would cause code loop track error. Consequently the pseudo range meterage error is interrelated with inertia velocity error which is complex to calculate. If this relativity is ignored in the state equation and observation equation of this system it must affect the estimated precision of the kalman filter and maybe the system is unstable. Therefore the second integrated navigation method is introduced. It adopts information fusion federal kalman filter and covariance. And consider the above pertinence to analyze the navigation performance of the integration system. Then it gives the flow of federal kalman filter algorithm. By analyzing the conclusion is that velocity error of integrated navigation system drops from 0.5m/s to below 0.05m/s and improves the precision and reliability of the navigation system effectively well continuity and real-time capability. It provides an effective way for data analysis and process of fusion navigation system. 2006 IEEE.