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长江特枯水情下青草沙水库供水潜能分析研究 被引量:3
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作者 乐勤 《给水排水》 CSCD 北大核心 2012年第9期123-127,共5页
根据长江流域新水情和长江北支新地形等有利条件,依据长江口咸潮严重入侵期氯化物过程线进行水量平衡精细化调算,提出以满足水库输水氯化物不超过250mg/L为前提,利用青草沙水域氯化物过程的低谷低盐区域取水调度技术,解决长江特枯水情... 根据长江流域新水情和长江北支新地形等有利条件,依据长江口咸潮严重入侵期氯化物过程线进行水量平衡精细化调算,提出以满足水库输水氯化物不超过250mg/L为前提,利用青草沙水域氯化物过程的低谷低盐区域取水调度技术,解决长江特枯水情下的青草沙水库库容不能满足供水需求的难题。结合陈行水库实际运行经验,同时经数值模拟计算验证,采用该调度技术,可以解决目前青草沙水库有效库容不能满足设计供水规模要求的问题,进一步扩大青草沙水库的供水能力,有效提高水库利用效益和保证水源地安全运行,同时可以为国内外同类河口水库供水潜能的开发利用提供借鉴。 展开更多
关键词 氯化物过程线 低谷低盐取水 长江特枯水情 供水潜能 青草沙水库
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The Role of the Dipole Interaction of Molecules with Charged Particles in the Polar Stratosphere
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作者 Yury Belikov Sergey Nikolayshvili 《Journal of Earth Science and Engineering》 2016年第3期115-149,共35页
Our analysis of published results of experiments in the Polar Regions substantiates and further develops our new approach to the photochemical processes in the polar stratosphere involving the charged particles. The d... Our analysis of published results of experiments in the Polar Regions substantiates and further develops our new approach to the photochemical processes in the polar stratosphere involving the charged particles. The dipole interaction of molecules with charged particles, primarily with ions, leads to the adhesion and disintegration of a number of molecules including ozone. Molecules acquire additional energy on the surface of the charged particles, enabling reactions that are not possible in space. Galactic cosmic rays are the main source of ions in the polar stratosphere, their equilibrium concentration at altitudes of 15 to 25 km can reach up ~ (1-5) ~ 103 ions/cm3. Estimations show that if the ozone destruction in the regime of"collision" with ions then the lifetime of ozone will vary from 10 days to 2 months. We suppose that alongside with the chlorine mechanism of ozone destruction there is a mechanism of ozone decay on a charged particle which can act also at those latitudes and altitudes where chlorine oxide CIO is absent, as well as in the night conditions. Here, we demonstrated the close connection of photochemical processes with the dynamic, electrical and condensational phenomena in the stratosphere, in particular, with the accumulation of unipolar charged particles on the upper and lower boundaries of the polar stratospheric clouds and aerosol layers as a result of the activity of the global electric circuit. 展开更多
关键词 Polar stratosphere OZONE charged particles dipole interaction global electric circuit photochemistry.
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