Desulfurization and denitrification by using ozone has been widely used in recent years,but the technology for generating ozone at this stage has some shortcomings,which needs to be improved urgently.This paper advoca...Desulfurization and denitrification by using ozone has been widely used in recent years,but the technology for generating ozone at this stage has some shortcomings,which needs to be improved urgently.This paper advocates using mud-phosphorous slurry to produce ozone,which is environmentally friendly and economical.At the same time,SO_(2) and NO_(x) can be removed from mud-phosphorous slurry simultaneously.The amount of ozone generated during desulfurization and denitrification is particularly important,thus,this paper studies the effects of the temperature of reaction,oxygen content and solid-liquid ratio of mud-phosphorus slurry on the amount of ozone generated.The results showed that under the optimum conditions(the reaction temperature was 60℃,the solid-liquid ratio of mud-phosphorus slurry was 5.0 g/40 mL,the oxygen content was 30%),the amount of ozone was the largest,and the maximum generation amount was 573.8 mg/m^(3).Under these conditions,the removal rates of SO_(2) and NO_(x) can reach 99.5%and 99%respectively.This paper also analyzes the products of desulfurization and denitrification,and proposes the corresponding reaction mechanism.展开更多
The magnetoelastic anisotropy of Fe77.5Si7.5B15 glass-coated amorphous microwires is investigated by the law of approach to saturation magnetization in comparison with the ferromagnetic resonance technique.The anisotr...The magnetoelastic anisotropy of Fe77.5Si7.5B15 glass-coated amorphous microwires is investigated by the law of approach to saturation magnetization in comparison with the ferromagnetic resonance technique.The anisotropy field of the inner core determined by the former method is 7.6×10^(4) A/m,which is larger than the value 2.5×10^(4) A/m measured by the ferromagnetic resonance method.This difference is ascribed to the skin effect and the uneven distribution of the internal stresses.However,the anisotropy field of the outer shell has a negative value indicating that it has an easy basal plane.展开更多
The domain structure and magnetisation process in short glass-coated amorphous Fe45Co20Ni10Si9B16 microwires are investigated by analyzing the hysteresis loops measured by a vibrating sample magnetometer.Methods of ca...The domain structure and magnetisation process in short glass-coated amorphous Fe45Co20Ni10Si9B16 microwires are investigated by analyzing the hysteresis loops measured by a vibrating sample magnetometer.Methods of calculating the thickness of the outer shell and the critical length to observe magnetic bistability have been established.The thickness of the outer shell is 2.3μm and the critical length is 8.11 mm for a microwire with a metallic core diameter of 31.1μm and a glass coat thickness of 10.6μm.The experimental results demonstrate the reliability of this method to calculate the critical length.展开更多
基金Projects(51968075,51568067)supported by the National Natural Science Foundation of ChinaProject(2018FD054)supported by the Applied Basic Research Surface Project of Yunnan Province,ChinaProject(2020Y0259)supported by the Scientific Research Fund Project of Yunnan Provincial Department of Education,China。
文摘Desulfurization and denitrification by using ozone has been widely used in recent years,but the technology for generating ozone at this stage has some shortcomings,which needs to be improved urgently.This paper advocates using mud-phosphorous slurry to produce ozone,which is environmentally friendly and economical.At the same time,SO_(2) and NO_(x) can be removed from mud-phosphorous slurry simultaneously.The amount of ozone generated during desulfurization and denitrification is particularly important,thus,this paper studies the effects of the temperature of reaction,oxygen content and solid-liquid ratio of mud-phosphorus slurry on the amount of ozone generated.The results showed that under the optimum conditions(the reaction temperature was 60℃,the solid-liquid ratio of mud-phosphorus slurry was 5.0 g/40 mL,the oxygen content was 30%),the amount of ozone was the largest,and the maximum generation amount was 573.8 mg/m^(3).Under these conditions,the removal rates of SO_(2) and NO_(x) can reach 99.5%and 99%respectively.This paper also analyzes the products of desulfurization and denitrification,and proposes the corresponding reaction mechanism.
基金Supported by the National Natural Science Foundation of China under Grant No 50771034.
文摘The magnetoelastic anisotropy of Fe77.5Si7.5B15 glass-coated amorphous microwires is investigated by the law of approach to saturation magnetization in comparison with the ferromagnetic resonance technique.The anisotropy field of the inner core determined by the former method is 7.6×10^(4) A/m,which is larger than the value 2.5×10^(4) A/m measured by the ferromagnetic resonance method.This difference is ascribed to the skin effect and the uneven distribution of the internal stresses.However,the anisotropy field of the outer shell has a negative value indicating that it has an easy basal plane.
基金Supported by the National Natural Science Foundation of China under Grant No 50771034.
文摘The domain structure and magnetisation process in short glass-coated amorphous Fe45Co20Ni10Si9B16 microwires are investigated by analyzing the hysteresis loops measured by a vibrating sample magnetometer.Methods of calculating the thickness of the outer shell and the critical length to observe magnetic bistability have been established.The thickness of the outer shell is 2.3μm and the critical length is 8.11 mm for a microwire with a metallic core diameter of 31.1μm and a glass coat thickness of 10.6μm.The experimental results demonstrate the reliability of this method to calculate the critical length.
