The fly ash from Jixi power plant was treated with various surface modifiers. The surface properties of the modified fly ash,including active index wetting angle,were measured in this paper. The modified fly ash was f...The fly ash from Jixi power plant was treated with various surface modifiers. The surface properties of the modified fly ash,including active index wetting angle,were measured in this paper. The modified fly ash was filled into rubber to improve the rubber properties. The results of rubber tests indicate that the type of the surface modifiers has a great influence on the rubber reinforcing properties. The fly ash modified by titanate coupling agents exhibits the best performance in respect to rubber reinforcing properties. The test results show that the fly ash can take place of some decomposition material so that the dosage of decomposition in rubber can be reduced,resulting in the low producing cost of rubber and the low pollution of fly ash.展开更多
β-glucans belong to a group of biologically active natural compounds called biological response modifiers.These substances represent highly conserved structural components of cell walls in fungi,yeast,grain and seawe...β-glucans belong to a group of biologically active natural compounds called biological response modifiers.These substances represent highly conserved structural components of cell walls in fungi,yeast,grain and seaweed.Despite almost 160 years of intensive research,the exact mechanisms of their action remain unsolved.The significant role of glucans in cancer treatment,infection immunity,stress reduction and restoration of damaged bone marrow has already been established.The present review focuses on the various less known but potentially significant roles glucans might play in medicine.In summary,glucan might represent the most important natural immunomodulator.展开更多
基金Project 2003AA4CS131 supported by the Key Projects for Tackling Scientific and Technological Problems of Harbin
文摘The fly ash from Jixi power plant was treated with various surface modifiers. The surface properties of the modified fly ash,including active index wetting angle,were measured in this paper. The modified fly ash was filled into rubber to improve the rubber properties. The results of rubber tests indicate that the type of the surface modifiers has a great influence on the rubber reinforcing properties. The fly ash modified by titanate coupling agents exhibits the best performance in respect to rubber reinforcing properties. The test results show that the fly ash can take place of some decomposition material so that the dosage of decomposition in rubber can be reduced,resulting in the low producing cost of rubber and the low pollution of fly ash.
文摘β-glucans belong to a group of biologically active natural compounds called biological response modifiers.These substances represent highly conserved structural components of cell walls in fungi,yeast,grain and seaweed.Despite almost 160 years of intensive research,the exact mechanisms of their action remain unsolved.The significant role of glucans in cancer treatment,infection immunity,stress reduction and restoration of damaged bone marrow has already been established.The present review focuses on the various less known but potentially significant roles glucans might play in medicine.In summary,glucan might represent the most important natural immunomodulator.
