维普中文期刊产品整合服务
3篇 您的检索式:作者名="Yongyang Su"
    题名 作者 年代 出处 被引量
1Microbial diversity in cold seep sediments from the northern South China Sea显示文摘华南海(SCS ) 是最大的西方的和平的边缘的海。然而,微生物引起的研究从来没在寒冷被执行过渗出在 SCS 的沉积。在 2004, SONNE 177 巡航发现二冷渗出有在北 SCS 的不同的水深度的区域。在水深度在 3000 m 附近的地方, Haiyang 4 区域已经为在 seafloor 上的活跃渗出被证实了,例如微生物引起的地席, authigenic 碳酸盐外壳和瓣鳃类。我们在从这感冒收集的一个 5.55-m 沉积核心调查了微生物引起的丰富和差异渗出区域。一条综合途径包括地球化学和 16S rRNA 基因被采用种系发生的分析。这里,我们证明与沉积核心的地球化学侧面一起的微生物引起的丰富和差异揭示了在硫酸盐减小和甲烷氧化之间的 a coupled 反应。直接计数结果显示出的氮蒽橘子那微生物引起的丰富从 105 ~ 106 cells/g 沉积(湿重量)。丰富的深度相关的变化显示出象甲烷集中侧面的一样的趋势。种系发生的分析显示了减少硫酸盐的细菌和厌氧的氧化甲烷的 archaea 的存在。差异在表面是高得多的,但是处于沉积的 geochemical 条件响应变化与深度严厉地减少了,例如甲烷,硫酸盐集中和全部的器官的碳。海洋的 Benthic 组 B, Chloroflexi 和 JS1 分别地是 archaeal 和细菌的图书馆的占优势的 phylotypes。Yong Zhang Xin Su Fang Chen Yuanyuan Wang Lu Jiao Hailiang Dong Yongyang Huang Hongchen Jiang 2012Geoscience Frontiers2012,3,3:9
2Preliminary study on aerosol particle addition calibration method for on-line quantitative analysis of airborne radioactive particles with ICP-MS显示文摘SU Yongyang LI Zhiming DONG Hongbo International Journal of Environmental Analytical Analysis0,,:1
3Leakage of nuclear material powder from pressure container through a small orifice显示文摘Because of the radioactivity and toxic nature of nuclear materials,their containment within oxide matrices,encased in sealed containers,has been proposed as a suitable means for storage and transportation.However,container failures because of cracks or small orifices present a major leakage risk for nuclear materials,consequently posing a significant hazard to the environment and human beings.In this study,terbium oxide powder was used as a nuclear material representative to examine the leakage of nuclear material powder through orifices located at the base of a pressure container.The dependence of the orifice diameter,the powder layer thickness,and the internal pressure of the container on the leakage mechanism and amount was examined.A simplified model correlating the dependence of the above-mentioned parameters to determine the utmost leakage amount was also developed based on the present results.The leakage of the nuclear material powder was assessed by measuring its concentration using an optical particle counter.The diameter of the orifice determined the powder leakage mechanism,which in turn influenced the amount of leakage produced.Comparison studies showed that unlike the changes in the differential pressure,the volume of the container has little effect on the leakage amount.Under sufficiently high internal pressures,the oxide powder can be released as a fine aerosol.The work is not only crucial from the nuclear safety aspect,but is also beneficial for the safe application of powder and nanoparticles.Longbo Liu Yanmin Wu Yongyang Su Hanbing Tang Zhihong Zhang Ping Huang Lili Zhang Lixing Zhang 2014Particuology2014,12,3:0
返回顶部 每页显示:
共1页 首页 上一页 第1页 下一页 末页 /1 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费