机构

• 长春光学精密机械与物... [2]
• 地球环境研究所 [1]

采集方式

• OAI收割 [3]

_filter

_filter

_filter

筛选

浏览/检索结果: 共3条，第1-3条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Research of ballistic missile early warning system (EI CONFERENCE) 会议论文  OAI收割 2nd International Conference on Advanced Engineering Materials and Technology, AEMT 2012, July 6, 2012 - July 8, 2012, Zhuhai, China Zhang M.-H.; Zhang Y.-Y. 收藏  |  浏览/下载：35/0  |  提交时间：2013/03/25 To develop a lift early warning infrared device  as a part of land or boat (ship) early warning system  the system has the ability to target pre-discovery and instructions invasion. Methods: In support of distant air situation  alerts the enemy aircraft  missiles and other long-range goals  obtain the target type and preliminary judgment of grade  deliver the alarm information to the command system. The infrared alarm device detects the target's own infrared radiation passively  alarms the incoming targets at low altitude and low altitude remote  when radar and other equipment is out of work. Results: The accuracy of entire system reached 20 according the analysis. Conclusions: The device has a full range of complex background  with high sensitivity  high resolution  anti-jamming  fast response time and other characteristics. (2012) Trans Tech Publications  Switzerland.   Effect of preservation on the δ13C value of dissolved inorganic carbon in different types of water samples 期刊论文  OAI收割 Isotopes in Environmental and Health Studies, 2011, 卷号: 47, 期号: 3, 页码: 379-389 作者:  Li,XZ(Li,Xiangzhong)[1];  Liu,WG(Liu,Weiguo)[1,2]   |  收藏  |  浏览/下载：15/0  |  提交时间：2018/12/19 Carbon-13  Dissolved Inorganic Carbon  Isotope Measurements  Methods And Equipment  Preservation Method  Storage Time   Study on medical X-ray coherent scatter imaging and processing based digital flat detector (EI CONFERENCE) 会议论文  OAI收割 3rd International Conference on BioMedical Engineering and Informatics, BMEI 2010, October 16, 2010 - October 18, 2010, Yantai, China 作者:  Li B.;  Zhao J.;  Li B.;  Li B.;  Liu J. 收藏  |  浏览/下载：32/0  |  提交时间：2013/03/25 It is introduced a novel imaging technique for medical diagnostic X-ray coherent scatter in this paper. A set of experimental equipment for X-ray coherent scatter imaging was set up with X-ray digital flat detector and medical diagnostic X-ray source. According to this equipment  the scatter images obtained are made of some circles with the same center. It is vital to calculate the energy template to classify the different samples. It is difficult to separate them using the traditional threshold method due to noise and overlapped shadow. In this paper  the image was transformed a binary image by using K-Means algorithm and Mathematical Morphology Methods. The effective region was extracted from the binary image inside the orthogonal energy projection space  then to calculate the centroid of rings. Consequently the curve of the energy distribution was built. The experiment results show that our method is reasonable and feasible. The technique will have wide foreground of application .Besides the imaging of human bone content  it can be used for various imaging of tissue and organs in biology. 2010 IEEE.