中国开放科研知识云: 检索

STAW: An Audio Watermarking in Short Time DCT for Copyright Protection 会议论文
Beijing, China, October 30-31, 2020
作者: Shiqiang Wu; Hu Guan; Ying Huang; Shuwu Zhang

收藏 | 浏览/下载：23/0 | 提交时间：2022/04/08

Nano-Twisted Double Helix Carbon Debris Improves the Wear Resistance of Ultra-Thick Diamond-Like Carbon Coatings 会议论文
作者: Sui, Xudong; Wang, Xinyu; Zhang, Shuaituo; Yan, Mingming; Li, Wensheng

收藏 | 浏览/下载：26/0 | 提交时间：2020/12/18

Carbon Coatings Debris Friction Silicon Wear of materialsDiamond-like carbon coatings Double helix structure Friction coefficients Interface bearing capacities Low friction coefficients Transition layers Tribological properties Ultra-low friction

Cold Deformation Behavior and Mechanical Properties of Forged Pure Nickel N6 会议论文
Xiamen, China, July 12, 2018 - July 16, 2018
作者: Gao, Zexi; Jia, Zhi; Ji, Jinjin; Liu, Dexue; Ding, Yutian

收藏 | 浏览/下载：0/0 | 提交时间：2020/11/15

Brittle fracture Cold working Corrosion resistance Deformation Mechanical properties Nickel Scanning electron microscopy Strain hardening Strain rate Aerospace field Cold deformation Cold working process Deformation behavior Hardening index Pure nickels Strength coefficients Tensile fractures

Effect of the crack surface friction on the field strength of bi-material-interfacial crack 会议论文
Alicante, Spain, September 14, 2016 - September 16, 2016
作者: Li, Youtang; Liu, Lei

收藏 | 浏览/下载：0/0 | 提交时间：2020/11/15

Crack propagation Finite element method Friction Stress intensity factors Crack surface friction Crack tip displacement Displacement field Effective stress Friction coefficients Friction factors Interfacial cracks Practical engineering

Quantitative design of regulatory elements based on high-precision strength prediction using artificial neural network 会议论文
定量生物学发展前沿研究生论坛, 北京
作者: Hailin Meng

收藏 | 浏览/下载：11/0 | 提交时间：2016/02/01

A 3D grain based model for characterizing the geometric heterogeneity of brittle rock 会议论文
47th US Rock Mechanics / Geomechanics Symposium 2013, June 23, 2013 - June 26, 2013, San Francisco, CA, United states
作者: Lan Hengxing

收藏 | 浏览/下载：43/0 | 提交时间：2014/12/30

Three dimensional Geomechanics Geometry Grain size and shape Rock mechanics Rocks Stress concentration

The effect of LZB-GC antibacterial agent on mechanics and friction properties of dental composite resin 会议论文
Sanya, China, June 22, 2013 - June 24, 2013
作者: Che, Xiao Qiang; Zhang, Song Ying; Chen, Yun Ping; Liu, Bin,

收藏 | 浏览/下载：28/0 | 提交时间：2017/01/20

Resins Bending strength Dental composites Friction Information technology Wear of materials Anti-bacterial agents Composite resins Dental composite resins Friction and wear properties Friction coefficients Friction properties Surface hardness Ultrasonic methods

Multi-focus image fusion algorithm based on adaptive PCNN and wavelet transform (EI CONFERENCE) 会议论文
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Wu Z.-G.; Wang M.-J.; Han G.-L.

收藏 | 浏览/下载：32/0 | 提交时间：2013/03/25

Being an efficient method of information fusion image fusion has been used in many fields such as machine vision medical diagnosis military applications and remote sensing.In this paper Pulse Coupled Neural Network (PCNN) is introduced in this research field for its interesting properties in image processing including segmentation target recognition et al. and a novel algorithm based on PCNN and Wavelet Transform for Multi-focus image fusion is proposed. First the two original images are decomposed by wavelet transform. Then based on the PCNN a fusion rule in the Wavelet domain is given. This algorithm uses the wavelet coefficient in each frequency domain as the linking strength so that its value can be chosen adaptively. Wavelet coefficients map to the range of image gray-scale. The output threshold function attenuates to minimum gray over time. Then all pixels of image get the ignition. So the output of PCNN in each iteration time is ignition wavelet coefficients of threshold strength in different time. At this moment the sequences of ignition of wavelet coefficients represent ignition timing of each neuron. The ignition timing of PCNN in each neuron is mapped to corresponding image gray-scale range which is a picture of ignition timing mapping. Then it can judge the targets in the neuron are obvious features or not obvious. The fusion coefficients are decided by the compare-selection operator with the firing time gradient maps and the fusion image is reconstructed by wavelet inverse transform. Furthermore by this algorithm the threshold adjusting constant is estimated by appointed iteration number. Furthermore In order to sufficient reflect order of the firing time the threshold adjusting constant is estimated by appointed iteration number. So after the iteration achieved each of the wavelet coefficient is activated. In order to verify the effectiveness of proposed rules the experiments upon Multi-focus image are done. Moreover comparative results of evaluating fusion quality are listed. The experimental results show that the method can effectively enhance the edge details and improve the spatial resolution of the image. 2011 SPIE.

Mutual diffusion coefficients of concentrated 1 : 1 electrolyte from the modified mean spherical approximation 会议论文
FLUID PHASE EQUILIBRIA, 16th Symposium on Thermophysical Properties/19th International Conference on Chemical Thermodynamics/61st Calorimetry Conference, Boulder, CO, Web of Science
Gao, Guang-Hua; Shi, Hong-Bing; Yu, Yang-Xin

收藏 | 浏览/下载：6/0

Study on the machined surface topography and performances on electrochemical finishing 会议论文
St. Petersburg, Russia, May 20, 2005 - May 24, 2005
作者: Li, H.Y.; Liu, X.M.; Liu, H.J.; Fang, J.C.

收藏 | 浏览/下载：5/0 | 提交时间：2020/11/15

Adhesives Corrosion resistance Friction Surface topography Contact stiffness Electrochemical finishing Fatigue strength Finishing technology Friction coefficients Machined surface topography Mechanical performance Performances and lifetime

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