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vertical dispersion Process of Oil Spills

Vertical Dispersion Process of Oil Spills

2011 2ND International Conference on Innovative Computing and Communication and 2011 Asia-Pacific Conference on Information Technology and Ocean Engineering(CICC-ITOE 2011)

作者： Hanifeh Imanian Morteza Kolahdoozan Amir Reza Zarrati Department of Civil and Environmental Engineering Amirkabir University of Technology

Oil spills in marine waters undergoes different processes including advection, surface spreading, evaporation,emulsion, dissolution, bio-degradation, photo-oxidation,hydrolysis and natural dispersion in the water column. Due to environmental effect on marine ecosystem and determining spilled oil lifetime, vertical dispersion has a great ***, the complexity of the process not much attention has been paid to this phenomenon till now. In the present article,analyses of experimental data cited in the literature have been carried out and variations of oil concentration distribution in water bodies have been investigated. According to the above analysis it can be concluded that oil concentration distributions follow a nearly parabolic curve both in time and space.

关键词： pollution oil spill vertical dispersion oil concentration distribution environment

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Coupling measurement and correction at the SSRF storage ring

Coupling measurement and correction at the SSRF storage ring

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第一届中国粒子加速器会议

作者： ZHANG ManZhou HOU Jie LI HaoHu Shanghai Institute of Applied Physics Chinese Academy of Sciences

Brightness is an important parameter for 3 generation light *** the emittance coupling is a realistic way to increase brightness without any additional equipment in a machine under *** main sources of emittance coupling are betatron coupling and vertical *** the SSRF storage ring,tune split and LOCO are used to measure the respective betatron and emittance *** of these sources can be corrected by skew *** measuring the skew quadrupole-coupling response matrix,betatron coupling can be changed from 0.014%to 2%.But the vertical dispersion changes at the same *** can find the suitable setting to correct simultaneously the betatron coupling and vertical *** emittance coupling can be reduced to 0.17%by this *** simulations show the potential for smaller emittance coupling if more skew quadrupoles are employed.

关键词： emittance coupling betatron coupling vertical dispersion tune split LOCO

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