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浏览/检索结果: 共16条，第1-10条 帮助

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Different Selection Levels of Mitogenomes: New Insights into Species Differentiation of the Triops longicaudatus (LeConte, 1846) Complex (Branchiopoda: Notostraca) 期刊论文  OAI收割
DIVERSITY-BASEL, 2024, 卷号: 16, 期号: 12, 页码: 15
作者:  Sun, Xiaoyan
  |  收藏  |  浏览/下载：4/0  |  提交时间：2025/03/28
Microstructure and Texture Variations in High Temperature Titanium Alloy Ti65 Sheets with Different Rolling Modes and Heat Treatments 期刊论文  OAI收割
MATERIALS, MATERIALS, 2020, 2020, 卷号: 13, 13, 期号: 11, 页码: 18, 18
作者:  Zhao, Ding;  Fan, Jiangkun;  Zhang, Zhixin;  Liu, Xudong;  Wang, Qingjiang
  |  收藏  |  浏览/下载：154/0  |  提交时间：2021/02/02
Microstructure and Texture Variations in High Temperature Titanium Alloy Ti65 Sheets with Different Rolling Modes and Heat Treatments 期刊论文  OAI收割
MATERIALS, 2020, 卷号: 13, 期号: 11, 页码: 18
作者:  Zhao, Ding;  Fan, Jiangkun;  Zhang, Zhixin;  Liu, Xudong;  Wang, Qingjiang
  |  收藏  |  浏览/下载：24/0  |  提交时间：2021/02/02
Comparative Plastome Analysis of Root- and Stem-Feeding Parasites of Santalales Untangle the Footprints of Feeding Mode and Lifestyle Transitions 期刊论文  OAI收割
GENOME BIOLOGY AND EVOLUTION, 2020, 卷号: 12, 期号: 1, 页码: 3663-3676
作者:  Chen, Xiaoli;  Fang, Dongming;  Wu, Chenyu;  Liu, Bing;  Liu, Yang
  |  收藏  |  浏览/下载：35/0  |  提交时间：2022/03/01
Low complexity encoder optimization for HEVC 期刊论文  OAI收割
JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION, 2016, 卷号: 35, 页码: 120-131
作者:  Wang, Shanshe;  Luo, Falei;  Ma, Siwei;  Zhang, Xiang;  Wang, Shiqi
  |  收藏  |  浏览/下载：41/0  |  提交时间：2019/12/13
Throughput-Optimal Multi-Mode Precoding MIMO System with Per-Substream AMC 期刊论文  OAI收割
WIRELESS PERSONAL COMMUNICATIONS, 2012, 卷号: 66, 期号: 2, 页码: 261-273
Yang, XM; Xiong, Y; Zhu, L
收藏  |  浏览/下载：20/0  |  提交时间：2013/04/25
Spatial mode selection by the phase modulation of subwavelength plasmonic grating 期刊论文  iSwitch采集
Plasmonics, 2010, 卷号: 5, 期号: 4, 页码: 423-428
作者:  Cai, Likang;  Zhang, Jing;  Bai, Wenli;  Wang, Qing;  Wei, Xin
收藏  |  浏览/下载：36/0  |  提交时间：2019/05/12
Optimization on motion estimation algorithm based on H. 264 (EI CONFERENCE) 会议论文  OAI收割
2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China
Wen X.; Li G.
收藏  |  浏览/下载：55/0  |  提交时间：2013/03/25
Motion estimation is a very important part of video compression. As a result of using precision of motion vector in H.264 encoder  the computational cost increases rapidly  and motion estimation is the most time-consuming stage. In this paper  based on the UMHexagonS algorithm  an optimized algorithm is proposed based on the dynamic search window selection  big hexagon and small hexagon search mode respectively  which saves motion estimation time effectively with a little quality loss. Experiments with some typical video sequences show that compared to the original UMHexagonS algorithm  this new algorithm can save about 17.851 % motion estimation time and reduce the complexity of original scheme as well as enhance the real time performance of encoder and almost has no changes in the reconstructed picture quality and bitrates. 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.  
Spatial Mode Selection by the Phase Modulation of Subwavelength Plasmonic Grating 期刊论文  OAI收割
plasmonics, 2010, 卷号: 5, 期号: 4, 页码: 423-428
Cai LK (Cai Likang); Zhang J (Zhang Jing); Bai WL (Bai Wenli); Wang Q (Wang Qing); Wei X (Wei Xin); Song GF (Song Guofeng)
收藏  |  浏览/下载：23/0  |  提交时间：2010/12/27