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	Microstructural evolution in the ultrafine-grained surface layer of Mg-Zn-Y-Ce-Zr alloy processed by sliding friction treatment 期刊论文 OAI收割 MATERIALS CHARACTERIZATION, 2020, 卷号: 166, 页码: 11 作者: Liu, Chunquan; Chen, Xianhua; Zhang, Wei; Zhang, Yusheng; Pan, Fusheng \| 收藏 \| 浏览/下载：73/0 \| 提交时间：2021/02/02 Magnesium alloy Surface nanocrystallization Gradient materials Grain refinement Sliding friction treatment Texture
	Strengthening mechanisms, deformation behavior, and anisotropic mechanical properties of Al-Li alloys: A review 期刊论文 OAI收割 JOURNAL OF ADVANCED RESEARCH, 2018, 卷号: 10, 页码: 49-67 作者: Abd El-Aty, A; Xu, Y; Guo, XZ; Zhang, SH; Ma, Y \| 收藏 \| 浏览/下载：28/0 \| 提交时间：2018/06/05 Aluminum-lithium Alloys Cu-zr Alloy Crystallographic Texture Gradient Fracture-behavior Mg Alloy Superplastic Behavior Microstructural Evolution Plastic Anisotropy Grain-structure Cavity Growth
	Global and Local Oriented Edge Magnitude Patterns for Texture Classification 期刊论文 OAI收割 INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE, 2017, 卷号: 31, 期号: 3, 页码: 1-13 作者: Dong, Jun; Yuan, Xue; Xiong, Fanlun 收藏 \| 浏览/下载：23/0 \| 提交时间：2018/07/04 Texture Classification Local Binary Pattern Histogram Of Gradient Rotation Invariant
	Dynamic mechanical response and microstructural evolution of extruded Mg AZ31B plate over a wide range of strain rates 期刊论文 OAI收割 JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 卷号: 696, 页码: 1067-1079 作者: Zhang WG; Ye YC; He LJ; Li PJ; Zhang HS(张虎生) 收藏 \| 浏览/下载：41/0 \| 提交时间：2017/02/24 Extruded AZ31B plate Gradient texture Dynamic mechanical behavior Deformation mechanism Microstructural evolution
	Vegetation and Soil N-15 Natural Abundance in Alpine Grasslands on the Tibetan Plateau: Patterns and Implications SCI/SSCI论文 OAI收割 2013 Yang Y. H.; Ji C. J.; Robinson D.; Zhu B.; Fang H. J.; Shen H. H.; Fang J. Y. 收藏 \| 浏览/下载：30/0 \| 提交时间：2014/12/24 carbon:nitrogen ratio climate isotope nitrogen cycle soil delta N-15 soil texture vegetation delta N-15 foliar nitrogen isotopes precipitation gradient global patterns rain-forest carbon availability plant delta-n-15 dynamics china
	Research on infrared dim-point target detection and tracking under sea-sky-line complex background (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China 作者: Dong Y.-X.; Zhang H.-B.; Li Y.; Li Y.; Li Y. 收藏 \| 浏览/下载：109/0 \| 提交时间：2013/03/25 Target detection and tracking technology in infrared image is an important part of modern military defense system. Infrared dim-point targets detection and recognition under complex background is a difficulty and important strategic value and challenging research topic. The main objects that carrier-borne infrared vigilance system detected are sea-skimming aircrafts and missiles. Due to the characteristics of wide field of view of vigilance system the target is usually under the sea clutter. Detection and recognition of the target will be taken great difficulties.There are some traditional point target detection algorithms such as adaptive background prediction detecting method. When background has dispersion-decreasing structure the traditional target detection algorithms would be more useful. But when the background has large gray gradient such as sea-sky-line sea waves etc.The bigger false-alarm rate will be taken in these local area.It could not obtain satisfactory results. Because dim-point target itself does not have obvious geometry or texture feature in our opinion from the perspective of mathematics the detection of dim-point targets in image is about singular function analysis.And from the perspective image processing analysis the judgment of isolated singularity in the image is key problem. The foregoing points for dim-point targets detection its essence is a separation of target and background of different singularity characteristics.The image from infrared sensor usually accompanied by different kinds of noise. These external noises could be caused by the complicated background or from the sensor itself. The noise might affect target detection and tracking. Therefore the purpose of the image preprocessing is to reduce the effects from noise also to raise the SNR of image and to increase the contrast of target and background. According to the low sea-skimming infrared flying small target characteristics the median filter is used to eliminate noise improve signal-to-noise ratio then the multi-point multi-storey vertical Sobel algorithm will be used to detect the sea-sky-line so that we can segment sea and sky in the image. Finally using centroid tracking method to capture and trace target. This method has been successfully used to trace target under the sea-sky complex background. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).
	Does strategy of resource acquisition in tropical woody species vary with life form, leaf texture, and canopy gradient? 期刊论文 OAI收割 EUROPEAN JOURNAL OF FOREST RESEARCH, 2010, 卷号: 129, 期号: 6, 页码: 1093-1108 作者: Liu, Fude; Yang, Wenjie; Zhang, Ming; Liu, Yuhong; Zheng, Jianwei 收藏 \| 浏览/下载：62/0 \| 提交时间：2016/04/22 Strategy of resource acquisition Life form Leaf texture Canopy gradient Tropical woody species
	Building Change Detection Based on Similarity Calibration 会议论文 OAI收割 Fifth International Conference on Fuzzy Systems and Knowledge Discovery, Vol 3, Proceedings, Los Alamitos Meng, Yu; Zha, Zhongming; Du, Xin; Peng, Shu 收藏 \| 浏览/下载：23/0 \| 提交时间：2014/12/07 building change detection gradient feature texture feature similarity calibration