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	Elastic full waveform inversion on unstructured meshes by the finite element method 期刊论文 OAI收割 PHYSICA SCRIPTA, 2019, 卷号: 94, 期号: 11, 页码: 16 作者: Zhang, Wensheng \| 收藏 \| 浏览/下载：91/0 \| 提交时间：2019/10/28 unstructured triangular meshes elastic wave full waveform inversion finite element method iterative Tikhonov regularization irregular topography conjugate gradient method
	Superconvergence analysis of FEM for 2D multi-term time fractional diffusion-wave equations with variable coefficient 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS, 2019, 页码: 15 作者: Shi, Y. H.; Zhao, Y. M.; Wang, F. L.; Tang, Y. F. \| 收藏 \| 浏览/下载：64/0 \| 提交时间：2020/01/10 Multi-term time fractional diffusion-wave equations linear triangular finite element Crank-Nicolson approximation stability superclose and superconvergence
	Triangular temporal-distribution law for disintegrating internal solitons over a step 期刊论文 OAI收割 Theoretical and Applied Mechanics Letters, 2018, 卷号: 8, 期号: 3, 页码: 197-200 作者: Tan DL(檀大林); Zhou JF(周济福); Wang X(王旭) \| 收藏 \| 浏览/下载：21/0 \| 提交时间：2018/10/24 Internal Solitary Wave Fission Process Triangular Law
	Graph fitting test method for the interpolation error of Moire fringe (EI CONFERENCE) 会议论文 OAI收割 9th International Conference on Electronic Measurement and Instruments, ICEMI 2009, August 16, 2009 - August 19, 2009, Beijing, China 作者: Sun Y.; Sun Y. 收藏 \| 浏览/下载：44/0 \| 提交时间：2013/03/25 In order to realize the fast test for the interpolation error the graph fitting test method for the interpolation error of Moire fringe is put forward in this paper. Firstly the triangular wave Moire fringe photoelectric signal of the encoder whose phase difference is 90 are sampled to get the Lissajous graph of the two signals. Secondly the single wave represented by the founded subsection function is used to fit the practical Moire fringe Lissajous graph. Then the fitting result is tested to verify whether it satisfies the accuracy requirement. Lastly the founded subsection function instead of the practical wave function is used to calculate the interpolation error. Using the graph fitting method to sample the Moire fringe single of 15-bits photoelectric encoder to get the interpolation error curve the tested maximum interpolation error is 70" and the minimum error is - 69". Comparing with the interpolation error which is received from traditional test method the change trend of the interpolation error curve is similar and peak-peak value is almost equality. The results of experiment indicate that: the equipment is convenient and the examination method is efficient and feasible. The measure speed is fast and the manifestation result is intuitionistic. The system can be used in the working field. The method can avoid the speed influence and realize the dynamic interpolation error measure which is significant for the research of encoder's dynamic accuracy characteristics. 2009 IEEE.
	Design and implementation of n-scroll chaotic attractors from a general jerk circuit 期刊论文 OAI收割 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2005, 卷号: 52, 期号: 7, 页码: 1459-1476 作者: Yu, SM; Lu, JH; Leung, H; Chen, GR \| 收藏 \| 浏览/下载：16/0 \| 提交时间：2018/07/30 jerk circuit modulating function sawtooth wave triangular wave transconductor wave n-scroll chaotic attractor
	Electronic properties of a doped antiferromagnet on a kagome lattice 期刊论文 OAI收割 PHYSICAL REVIEW B, 1999, 卷号: 59, 期号: 21, 页码: 13546-13549 作者: Yu, WQ; Feng, SP; Yu, WQ , Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China. \| 收藏 \| 浏览/下载：17/0 \| 提交时间：2012/08/29 Copper-oxide Materials Superconducting Transition-temperature 2-dimensional Heisenberg-model Resonating-valence-bond Triangular-lattice Photoemission Order Separation States Wave