1. State Key Laboratory for Powder Metallurgy Central South University Changsha China
2. School of Chemistry and Materials Science Hunan Agricultural University Changsha Hunan China
3. State Key Laboratory of Utilization of Woody Oil Resource of China, Hunan Provincial Key Laboratory of Oils & Fats Molecular Structure and Function Hunan Academy of Forestry Changsha Hunan China
4. College of Electrical and Information Engineering Hunan University Changsha Hunan China