There are limited Vapor-Liquid Equilibrium（VLE） data in cluding N-formylmorpholine（NFM） for the design of the extractive distil lation process using NFM as solvent.The new interaction parameters of UNIFAC mo del w...There are limited Vapor-Liquid Equilibrium（VLE） data in cluding N-formylmorpholine（NFM） for the design of the extractive distil lation process using NFM as solvent.The new interaction parameters of UNIFAC mo del were fitted with experimental data between CH2,ACH and NFM which was rega rded as a main group.Comparison of the prediction results of VLE data and infin ite dilution activity coefficients with other published methods of group divisio n for NFM, indicated more satisfying results with the interaction parameters of this paper. The four methods of group division for NFM were discussed based on the group division for ring molecule and group charge distribution. The group c harge distribution at the minimum energy state was calculated by the AM1 method in Chem3D Pro. The good theoretical basis was presented for the group division of NFM.展开更多
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 f...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.展开更多
文摘There are limited Vapor-Liquid Equilibrium（VLE） data in cluding N-formylmorpholine（NFM） for the design of the extractive distil lation process using NFM as solvent.The new interaction parameters of UNIFAC mo del were fitted with experimental data between CH2,ACH and NFM which was rega rded as a main group.Comparison of the prediction results of VLE data and infin ite dilution activity coefficients with other published methods of group divisio n for NFM, indicated more satisfying results with the interaction parameters of this paper. The four methods of group division for NFM were discussed based on the group division for ring molecule and group charge distribution. The group c harge distribution at the minimum energy state was calculated by the AM1 method in Chem3D Pro. The good theoretical basis was presented for the group division of NFM.
基金supported by State Key Laboratory of Particle Detection & Electronics and ITER Plan National Major Project of China (No.2008GB109000)
文摘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.
