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	A high expansion implicit finite-element prestack reverse time migration method 期刊论文 OAI收割 Exploration Geophysics, 2018, 卷号: 49, 期号: 6, 页码: 844-855 作者: Limin Liu; Yun Wang; Yong Wang; Jing Chen; Yanqiu Liu \| 收藏 \| 浏览/下载：41/0 \| 提交时间：2019/06/12 Cohesion Degree Finite Element Local Relaxation Multi-level Parallel Reverse Time Migration
	Application of multi-sensors parallel fusion system in photoelectric tracing (EI CONFERENCE) 会议论文 OAI收割 2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications, November 16, 2008 - November 19, 2008, Beijing, China Cheng G.-Y.; Cai S.; Gao H.-B.; Zhang S.-M.; Qiao Y.-F. 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/03/25 To solve the real-time and reliability problem of tracking servo-control system in optoelectronic theodolite a multisensors parallel processing system was proposed. Misdistances of three different wavebands were imported into system and then prediction was done in DSP1 to get the actual position information. Data fusion was accomplished in PPGA imported by multi channel buffer serial port. The compound position information was used to control the theodolite. The results were compared with external guide data in DSP2 to implement correction of above calculation and then were imported to epistemic machine through PXI interface. The simulation experiment of each calculation unit showed that this system could solve the real-time problem of feature level data fusion. The simulation result showed that the system can satisfy the real-time requirement with 1.25ms in theodolite with three imaging systems while sampling frequency of photoelectric encoder was 800 Hz. 2009 SPIE.
	Key techniques of laser direct writing of fine lines on the spherical surface (EI CONFERENCE) 会议论文 OAI收割 ICO20: Optical Design and Fabrication, August 21, 2005 - August 26, 2005, Changchun, China Liang F.; Hu J. 收藏 \| 浏览/下载：24/0 \| 提交时间：2013/03/25 The main principles of laser direct writing (LDW) system for lines on the spherical surface (SS) are discussed. It is pointed out that line profile is determined by the exposure dose distribution which lies on the light intensity distribution of focus plane and the scanning speed. To improve the quality of line profile on the SS several key techniques as follows are introduced. Firstly the unique system configuration four axes mutually intersecting at the center of the SS is adopted which ensures the shape of the focus be maintained circular during the writing period. Secondly an automatic focus system (AFS) with the function of automatic focus in a certain range is introduced. Thirdly to guarantee the linear velocity to accord with the exposure character of the photoresist all the time an efficient arithmetic that controls motors run at appropriate angular velocity in different latitude is developed. Finally to achieve a stable and well-behaved system so as to compensate the velocity instability resulting from unavoidable errors of mechanical and electronics factor a powerful programmable multi-axis controller (PMAC) is utilized as the kernel element of the servocontrol system and the curves of step response and parabolic response achieved by feedforward and PID loop tuning indicate that the location precision and velocity stability have reached a high level. The experimental results of LDW of lines on the SS work piece with a diameter 30 mm and a radius equal to 100 mm are given. The section analysis of the lines on the photoresist by the atomic force microscope (AFM) after exposure and development is performed. The results show that line width is about 3.0 m and the steep sides of the lines are parallel to each other.
	Parallelizing of macro-scale pseudo-particle modeling for particle-fluid systems 期刊论文 OAI收割 SCIENCE IN CHINA SERIES B-CHEMISTRY, 2004, 卷号: 47, 期号: 5, 页码: 434-442 作者: Tang, DX; Ge, W; Wang, XW; Ma, JS; Guo, L 收藏 \| 浏览/下载：20/0 \| 提交时间：2013/11/05 particle system parallel algorithm macro-scale pseudo-particle modeling multi-level cell-subdivision
	相变存储材料光学特性的超快多阶调制研究学位论文 OAI收割作者: 温帅 \| 收藏 \| 浏览/下载：178/0 \| 提交时间：2018/12/26 相变材料 phase-change material 皮秒激光 picosecond laser pulse 多阶编码 multi-level coding 并行调控 parallel modulation