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5. Technological research on desulphurising flotation of pyrite cinder in Guangxi.

Author

Wang Quan-Liang, Di Yi-Hua., Zhou Hu-Qiang, Wang Quan-Liang, Di Yi-Hua., and Zhou Hu-Qiang

Abstract

Desulphurising flotation of a pyrite slag has been investigated in order to develop a process for the recovery of iron. Collectors JX, JA and LSN were used on unmilled and milled slags. Flotation of the slag with iron grade of 57.78%, sulphur 1.31% gave a concentrate of iron grade 61.18%, sulphur 0.48% and an iron recovery of 93.70% for the unmilled slag, and 60.04%, 0.29% and 88.15% respectively for the slag subjected to grinding and washing. The former gives inferior desulphurisation but is simpler and more practical., Desulphurising flotation of a pyrite slag has been investigated in order to develop a process for the recovery of iron. Collectors JX, JA and LSN were used on unmilled and milled slags. Flotation of the slag with iron grade of 57.78%, sulphur 1.31% gave a concentrate of iron grade 61.18%, sulphur 0.48% and an iron recovery of 93.70% for the unmilled slag, and 60.04%, 0.29% and 88.15% respectively for the slag subjected to grinding and washing. The former gives inferior desulphurisation but is simpler and more practical.

6. [Amplitude Changes of Low Frequency Fluctuation in Brain Spontaneous Nervous Activities Induced by Needling at Hand Taiyin Lung Channel].

Author

Zhou YL, Su CG, Liu SF, Jin XY, Duan YL, Chen XY, Zhao SH, Wang QL, and Dang CL

Subjects
Brain Mapping, Humans, Magnetic Resonance Imaging, Acupuncture Therapy, Brain physiology
Abstract

Objective: To observe amplitude changes of low frequency fluctuation in brain spontaneous nervous activities induced by needling at Hand Taiyin Lung Channel, and to preliminarily explore the possible brain function network of Hand Taiyin Lung Channel., Methods: By using functional magnetic resonance imaging (fMRI), 16 healthy volunteers underwent resting-state scanning (R1) and scanning with retained acupuncture at Hand Taiyin Lung Channel (acupuncture, AP). Data of fMRI collected were statistically calculated using amplitude of low frequency fluctuations (ALFF)., Results: Under R1 significantly enhanced ALFF occurred in right precuneus, left inferior parietal lobule, bilateral superior temporal gyrus, bilateral middle frontal gyrus, left superior frontal gyrus, left inferior frontal gyrus, left medial frontal gyrus. Under AP significantly enhanced ALFF occurred in right precuneus, bilateral superior frontal gyrus, cerebellum, bilateral middle frontal gyrus, right medial frontal gyrus, and so on. Compared with R1, needing at Hand Taiyin Lung Channel could significantly enhance ALFF in right gyrus subcallosum and right inferior frontal gyrus. Significant decreased ALFF appeared in right postcentral gyrus, left precuneus, left superior temporal gyrus, left middle temporal gyrus, and so on., Conclusion: Needing at Hand Taiyin Lung Channel could significantly change fixed activities of cerebral cortex, especially in right subcallosal gyrus, right inferior frontal gyrus, and so on.

Published
2016

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