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	Experimental study of the influence of cold heat exchanger geometry on the performance of a co-axial pulse tube cooler 期刊论文 iSwitch采集 Cryogenics, 2016, 卷号: 78, 页码: 78-82 作者: Pang, Xiaomin; Dai, Wei; Wang, Xiaotao; Vanapalli, S.; Luo, Ercang 收藏 \| 浏览/下载：30/0 \| 提交时间：2019/05/09 Cold heat exchanger Co-axial Pulse tube cooler Slot number Slot width
	Feasibility of Pulse Combustion in Micro Gas Turbines 期刊论文 OAI收割 JOURNAL OF THERMAL SCIENCE, 2012, 卷号: 21, 页码: 466,473 Juha Honkatukia1; Esa Saari1; Timo Knuuttila2; Jaakko Larjola1; Jari Backman1 收藏 \| 浏览/下载：20/0 \| 提交时间：2013/01/31 Gas turbine pulse combustion micro size low Reynolds number
	Laser pulse coded signal frequency measuring device based on DSP and CPLD (EI CONFERENCE) 会议论文 OAI收割 International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, May 24, 2011 - May 26, 2011, Beijing, China 作者: Zhang H.-B.; Wang T.-F.; Guo R.-H.; Li Y.; Li Y. 收藏 \| 浏览/下载：44/0 \| 提交时间：2013/03/25 Laser pulse code is an anti-jamming measures used in semi-active laser guided weapons. On account of the laser-guided signals adopting pulse coding mode and the weak signal processing it need complex calculations in the frequency measurement process according to the laser pulse code signal time correlation to meet the request in optoelectronic countermeasures in semi-active laser guided weapons. To ensure accurately completing frequency measurement in a short time it needed to carry out self-related process with the pulse arrival time series composed of pulse arrival time calculate the signal repetition period and then identify the letter type to achieve signal decoding from determining the time value number and rank number in a signal cycle by Using CPLD and DSP for signal processing chip designing a laser-guided signal frequency measurement in the pulse frequency measurement device improving the signal processing capability through the appropriate software algorithms. In this article we introduced the principle of frequency measurement of the device described the hardware components of the device the system works and software analyzed the impact of some system factors on the accuracy of the measurement. The experimental results indicated that this system improve the accuracy of the measurement under the premise of volume real-time anti-interference low power of the laser pulse frequency measuring device. The practicality of the design reliability has been demonstrated from the experimental point of view.
	Multi-focus image fusion algorithm based on adaptive PCNN and wavelet transform (EI CONFERENCE) 会议论文 OAI收割 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：84/0 \| 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.
	Standing electron plasma wave mechanism of void array formation inside glass by femtosecond laser irradiation 期刊论文 OAI收割 appl. phys. a-mater. sci. process., 2007, 卷号: 88, 期号: 2, 页码: 285, 288 Sun Haiyi; Song Juan; Li Chengbin; Xu Jian; Wang Xinshun; 程亚; 徐至展; 邱建荣; 贾天卿收藏 \| 浏览/下载：1073/115 \| 提交时间：2009/09/18 Void array formation Laser propagation Pulse number Pulse energy Electron wave
	Repetitive nano second-pulse breakdown in tip-plane gaps of air 期刊论文 iSwitch采集 Ieee transactions on plasma science, 2006, 卷号: 34, 期号: 5, 页码: 1620-1625 作者: Shao, Tao; Sun, Guangsheng; Yan, Ping; Zhang, Shichang 收藏 \| 浏览/下载：30/0 \| 提交时间：2019/05/10 Gas breakdown Memory effect Nanosecond breakdown Number of applied pulses Repetitive pulse stress time Tip-plane geometry