A novel technique combining electrophoretic deposition (EPD) and reaction bonding process (RBP) is developed to fabricate thick ZrO2/Al2O3 composite coatings. Mixed organic solvents are used here to make suspension co...A novel technique combining electrophoretic deposition (EPD) and reaction bonding process (RBP) is developed to fabricate thick ZrO2/Al2O3 composite coatings. Mixed organic solvents are used here to make suspension containing yttria stablised zirconia (YSZ) and aluminium (Al). The results show that densely packed green form coatings are deposited using a mixture of ethanol and acetylacetone as suspension medium and ball milling for 48 hours. On subsequent heat treatment, melting and oxidation of aluminium in the green forms promote densification during sintering. By these means, thick, uniform and crack-free ZrtVA^Oa composite coatings have been fabricated on metal substrate.展开更多
A two dimensional cold CFB test rig has been established, investigation on horizontal mixing of particles in dense bed has been carried out on this test rig. Mixing model has been used in data reduction,the horizontal...A two dimensional cold CFB test rig has been established, investigation on horizontal mixing of particles in dense bed has been carried out on this test rig. Mixing model has been used in data reduction,the horizontal miring coefficients of particles in different experimental conditions and in different structures of dense bed have been obtained and compared. By using dimensional analysis, non-dimensionalexpression of experimental condition and mixing coefficient have been obtained.展开更多
Of late, more and more studies are being carried out to explore theanti-tumour activity of mifepristone. As Rose and Barnea1 reported, mifepristone can inhibit thegrowth of cultured ovarian carcinoma cells. The role o...Of late, more and more studies are being carried out to explore theanti-tumour activity of mifepristone. As Rose and Barnea1 reported, mifepristone can inhibit thegrowth of cultured ovarian carcinoma cells. The role of mifepristone in cis-diamminedichloroplatinum( CDDP) and taxol resistant ovarian carcinoma was found in Rocereto and colleagues' study. Thepurpose of this study was to examine the effect of mifepristone on the growth and CDDP-sensitivityof CDDP-resistant human ovarian carcinoma cells and give an experimental basis for the treatmentwith mifepristone of refractory ovarian carcinoma.展开更多
文摘A novel technique combining electrophoretic deposition (EPD) and reaction bonding process (RBP) is developed to fabricate thick ZrO2/Al2O3 composite coatings. Mixed organic solvents are used here to make suspension containing yttria stablised zirconia (YSZ) and aluminium (Al). The results show that densely packed green form coatings are deposited using a mixture of ethanol and acetylacetone as suspension medium and ball milling for 48 hours. On subsequent heat treatment, melting and oxidation of aluminium in the green forms promote densification during sintering. By these means, thick, uniform and crack-free ZrtVA^Oa composite coatings have been fabricated on metal substrate.
文摘A two dimensional cold CFB test rig has been established, investigation on horizontal mixing of particles in dense bed has been carried out on this test rig. Mixing model has been used in data reduction,the horizontal miring coefficients of particles in different experimental conditions and in different structures of dense bed have been obtained and compared. By using dimensional analysis, non-dimensionalexpression of experimental condition and mixing coefficient have been obtained.
基金This study was supported by the Natural Science Foundation of Guangdong Province of China (No.021999).
文摘Of late, more and more studies are being carried out to explore theanti-tumour activity of mifepristone. As Rose and Barnea1 reported, mifepristone can inhibit thegrowth of cultured ovarian carcinoma cells. The role of mifepristone in cis-diamminedichloroplatinum( CDDP) and taxol resistant ovarian carcinoma was found in Rocereto and colleagues' study. Thepurpose of this study was to examine the effect of mifepristone on the growth and CDDP-sensitivityof CDDP-resistant human ovarian carcinoma cells and give an experimental basis for the treatmentwith mifepristone of refractory ovarian carcinoma.
