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The neutron flux monitor (NFM), as a significant diagnostic system in the International Thermonuclear Experimental Reactor (ITER), will play an important role in the readings of a series of key parameters in the fusion reaction process. As the core of the main electronic system of the NFM, the neutron-gamma pulse shape discrimination (n-γ PSD) can distinguish the neutron pulse from the gamma pulse and other disturbing pulses according to the thresholds of the rising time and the amplitude pre-installed on the board, the double timing point CFD method is used to get the rising time of the pulse. The n-γ PSD can provide an accurate neutron count. 相似文献
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N-甲酰吗啉-烷烃-芳烃间汽液平衡的研究 总被引:12,自引:0,他引:12
近年,采用N-甲酰吗啉溶剂回收芳烃在焦化行业中受到极大重视,但可资利用的基础数据却极为贫乏。今用改进的Junghan's流动式鼓泡平衡釜测定了常压、三个温度(65.2,72.5,79.5℃)下苯-NFM二元体系的苯-环已烷-NFM、苯-正庚烷-NFM及苯-甲基环已烷-NFM三个三元体系共12组汽液平衡数据;对所有三元体系,分别以实测数据及苯-NFM的固定能量参数对,用NRTL和UNIQUAC模型进行了关联,结果均较为满意。研究结果填补了该项数据空白,完全能满足芳烃回收工程设计的需要。 相似文献
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N-甲酰吗啉芳烃抽提蒸馏的工艺模拟 总被引:9,自引:0,他引:9
介绍用于回收纯芳烃的N-甲酰吗啉芳烃抽提蒸馏工艺,用UNIFAC基团贡献法估算二元参数对,并用ASPENPLUS仿真模拟工艺过程,结果和专利商提供的数据较接近,分析讨论抽提蒸馏塔操作特性 相似文献