Cyclic voltammetry and chronoamperometry were used to investigate the electrochemical behavior of Fe(Ⅱ) and Er(Ⅲ) in a LiClO 4 DMSO(dimethylsufoxide) system at Pt and Cu electrodes. Experimental results indicate t...Cyclic voltammetry and chronoamperometry were used to investigate the electrochemical behavior of Fe(Ⅱ) and Er(Ⅲ) in a LiClO 4 DMSO(dimethylsufoxide) system at Pt and Cu electrodes. Experimental results indicate that the reductions of Fe(Ⅱ) to Fe(0) and Er(Ⅲ) to Er(0) were irreversible at Pt and Cu electrodes. The diffusion coefficient and the electron transfer coefficient of Fe(Ⅱ) in a 0 01 mol/L FeCl 2 0 1 mol/L LiClO 4 DMSO system at 303 K were 1 70×10 -10 m 2/s and 0 08 respectively, the diffusion coefficient and the electron transfer coefficient of Er(Ⅲ) in a 0 01 mol/L ErCl 3 0 1mol/L LiClO 4 DMSO system at 303 K were 1 47×10 -10 m 2/s and 0 108 respectively. The homogeneous, strong adhesive Er Fe alloy films containing Er of 31 39%-42 12% in mass fraction with metallic lustre were prepared by potentiostatic electrolysis on a Cu electrode in a ErCl 3 FeCl 2 LiClO 4 DMSO system at -1 75--2 50 V( vs . SCE).展开更多
设计一套基于事件相关同步电位(Event related desynchron ization,ERD)和事件相关去同步电位(Event related synchronization,ERS)脑电信号反馈控制功能电刺激仪系统。当大脑想象残肢运动中,出现ERD/ERS脑电信号,经过特征提取和特征分...设计一套基于事件相关同步电位(Event related desynchron ization,ERD)和事件相关去同步电位(Event related synchronization,ERS)脑电信号反馈控制功能电刺激仪系统。当大脑想象残肢运动中,出现ERD/ERS脑电信号,经过特征提取和特征分类转换为控制命令去触发功能电刺激系统,实现对相应残肢的电刺激。实验结果成功实现了对残肢的电刺激。展开更多
基金Supported by the Thousand- Hundred- Ten Talent Project Foundation of Guangdong Province Education Office(No.0 0 - 0 79- 4 2 10 0 5 ) and State Key L ab of Rare Material Chem istry and Applications
文摘Cyclic voltammetry and chronoamperometry were used to investigate the electrochemical behavior of Fe(Ⅱ) and Er(Ⅲ) in a LiClO 4 DMSO(dimethylsufoxide) system at Pt and Cu electrodes. Experimental results indicate that the reductions of Fe(Ⅱ) to Fe(0) and Er(Ⅲ) to Er(0) were irreversible at Pt and Cu electrodes. The diffusion coefficient and the electron transfer coefficient of Fe(Ⅱ) in a 0 01 mol/L FeCl 2 0 1 mol/L LiClO 4 DMSO system at 303 K were 1 70×10 -10 m 2/s and 0 08 respectively, the diffusion coefficient and the electron transfer coefficient of Er(Ⅲ) in a 0 01 mol/L ErCl 3 0 1mol/L LiClO 4 DMSO system at 303 K were 1 47×10 -10 m 2/s and 0 108 respectively. The homogeneous, strong adhesive Er Fe alloy films containing Er of 31 39%-42 12% in mass fraction with metallic lustre were prepared by potentiostatic electrolysis on a Cu electrode in a ErCl 3 FeCl 2 LiClO 4 DMSO system at -1 75--2 50 V( vs . SCE).
文摘设计一套基于事件相关同步电位(Event related desynchron ization,ERD)和事件相关去同步电位(Event related synchronization,ERS)脑电信号反馈控制功能电刺激仪系统。当大脑想象残肢运动中,出现ERD/ERS脑电信号,经过特征提取和特征分类转换为控制命令去触发功能电刺激系统,实现对相应残肢的电刺激。实验结果成功实现了对残肢的电刺激。
