4篇
您的检索式：作者名="Sha Haijun"
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| 1 | Correlation Analysis of Gridding of Earthquakes in Datong and Its Surrounding Areas and Implication for Earthquake Prediction显示文摘On the basis of the earthquake ( M_L ≥3. 0 ) catalog in North China from 1970 to 2009,the pattern of temporal and spatial distribution of medium-small earthquakes in Datong and its surrounding areas is studied by correlation analysis with a focus on its anomaly before moderate and strong earthquakes. With different spatial scales,temporal scales and time steps, the spatial distribution of earthquakes is converted to a sequence, then the correlation coefficients between the spatial distribution of medium-small earthquakes in a long-term and a longer time are calculated for the analysis of anomalies before moderate and strong earthquakes. In the study region center on the epicenter of the 1989 Datong-Yanggao earthquake ( M_S 5. 9 ) within a radius of less than 0. 8°,with the time length of 3600 days,the longer time length of 3700 days,and the time step of 100 days, the correlation coefficient from 1980 to 2009 is steady between 0. 94 and 1. 00,but there were anomalies with values less than 0. 94 in the 2 years before the 1989 Datong-Yanggao earthquake ( M_S 5. 9 ) , the 1991 Datong earthquake ( M_S 5. 8 ) and 1999 Hunyuan earthquake ( M_S 5. 6 ) , which indicates the spatial distribution of a medium-small earthquake is very different from steady background seismicity. The implication for earthquake prediction from the anomaly of the correlation coefficient is also discussed with the three conclusions: ( 1 ) Before moderate and strong earthquakes in Datong and its surrounding areas,the obvious change of spatial distribution patterns of medium-small earthquake can be a kind of seismic precursor of the 2-year time scale for the prediction of an earthquake's time. ( 2 ) As the study region is restricted within a radius of less than 0. 8°,the result of correlation analysis is also good for the prediction of an earthquake's location. ( 3 ) The method of correlation analysis in this paper helps recognize the anomaly of spatial distribution of medium-small earthquake. | Sha Haijun Liu Dongying | 2012 | Earthquake Research in China2012，26，3： | 0 |
| 2 | Study on the Seismic Fortification Criteria of Offshore Platforms in the Bohai Sea显示文摘This paper analyzes the seismicity and seismic risk distribution in the Bohai Sea. Based on the seismic design parameters of 46 platforms in the Bohai Sea, a statistic analysis is made on the ratios of the peak accelerations for different probability levels. In accordance with the two-stage design method, a scheme of two design seismic levels is proposed, and two fortification goals are established respectively for strength level earthquakes and ductility level earthquakes. Through analogy and comparison to the Chinese seismic code for buildings, it is proposed that the probability level for the strength and ductility level earthquakes takes return periods of 200a and 1000~2500a respectively, and we further expounded on its rationality. Finally, the fortification parameters in the sub-regions of Bohai Sea area are given in the light of seismic risk zonation and ground motion division. This article is a summary of experiences from many years of offshore platform seismic fortification work, and an exploratory study on the seismic fortification standards of offshore platforms in China, which may provide some references for the establishment of the standard. | Lv Yuejun Peng Yanju Wang Junqin Sha Haijun | 2013 | Earthquake Research in China2013，27，1： | 0 |
| 3 | 全基因组关联研究发现中国人群前列腺癌两个新易感位点9q31.2和19q13.4显示文摘0前言在全球范围内,前列腺癌的发病率和病死率存在着巨大差异。该病在西方发达国家发病率最高,在非裔美国人群病死率最高,而在亚洲人群中发病率及病死率均为全球最低,提示不同人种在前列腺癌的遗传方面存在异质性。在欧美和日本人群中,全基因组关联研究(GWAS)技术已经被用于检测前列腺癌的遗传易感性位点,但至今尚无关于GWAS检测中国人群前列腺癌易感位点的报道。 | Jianfeng Xu Zengnan Mo Dingwei Ye Meilin Wang Fang Liu Guangfu Jin Chuanliang Xu Xiang Wang Qiang Shao Zhiwen Chen Zhihua Tao Jun Qi Fangjian Zhou Zhong Wang Yaowen Fu Dalin He Qiang Wei Jianming Guo Denglong Wu Xin Gao Jianlin Yuan Gongxian Wang Yong Xu Guozeng Wang Haijun Yao Pei Dong Yang Jiao Mo Shen Jin Yang Jun Ou-Yang Haowen Jiang Yao Zhu Shancheng Ren Zhengdong Zhang Changjun Yin Xu Gao Bo Dai Zhibin Hu Yajun Yang Qijun Wu Hongyan Chen Peng Peng Ying Zheng Xiaodong Zheng Yongbing Xiang Jirong Long Jian Gong Rong Na Xiaoling Lin Hongjie Yu Sha Tao Junjie Feng Jishan Sun Wennuan Liu Ann Hsing Jianyu Rao Qiang Ding Fredirik Wiklund Henrik Gronberg Xiao-Ou Shu Wei Zheng Hongbing Shen Li Jin Rong Shi Daru Lu Xuejun Zhang Jielin Sun S Lilly Zheng Yinghao Sun | 2013 | 第二军医大学学报2013，34，4： | 0 |
| 4 | Preparation of copper net-supported metal-organic framework-5 membranes for solid-state lasers显示文摘Continuous copper net-supported metal-organic framework (MOF-5) membranes of high quality are synthesized for the first time by vapor diffusion of an organic amine. The velocity of diffusion of the organic amine and reaction temperature directly affect the quality of the membranes formed. Furthermore, a laser dye is successfully encapsulated within such membranes in CHCl3. The dye-loaded MOF-5 membranes have potential applications in optics, especially in laser systems. | WANG HaiJun SHA ZiJian | 2011 | Science China Chemistry2011，54，6： | 0 |
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