Superfine composite powders of CeO2-ZrO2 (CZ) and CeO2-ZrO2-La2O3 (CZL) were prepared by hydrothermal method. The effects of pH?temperature and time for hydrothermal process on the performance of the resulting powders...Superfine composite powders of CeO2-ZrO2 (CZ) and CeO2-ZrO2-La2O3 (CZL) were prepared by hydrothermal method. The effects of pH?temperature and time for hydrothermal process on the performance of the resulting powders were studied. The optimized reaction parameters were on follows: the precursor′s pH≈9.0, hydrothermal temperature of 200 ℃ holding for 2 h. Thermal stable powders with average particle size smaller than 10 nm and specific surface area of 171 m2·g-1 were obtained. A BET specific surface area was still at 44 m2·g-1 after calcination at 1 000 ℃ for 6 hours.展开更多
The crystal structure of {[Cd(sulfadiazine)2]n[Cd(sulfadiazine)2·H2O]n} (1) comprises of two different Cd centers in which sulfadiazine is used as a quadridentate and bidentate ligand to coordinate to Cd1 center,...The crystal structure of {[Cd(sulfadiazine)2]n[Cd(sulfadiazine)2·H2O]n} (1) comprises of two different Cd centers in which sulfadiazine is used as a quadridentate and bidentate ligand to coordinate to Cd1 center, while it acts as a tridentate and bidentate ligand to bridge to Cd2 center, and the oxygen atom from water also coordinates to Cd2 center. As a result, the title compound bears two different 1D chain. CCDC: 274945.展开更多
A novel one-dimensional coordination polymer, [Cd( μ-DPIA)2(H2O)]n (HDPIA=4,5-Diphenylimidazole-1-acetic acid), was synthesized and characterized by the element analysis, IR and single crystal X-ray diffraction. It c...A novel one-dimensional coordination polymer, [Cd( μ-DPIA)2(H2O)]n (HDPIA=4,5-Diphenylimidazole-1-acetic acid), was synthesized and characterized by the element analysis, IR and single crystal X-ray diffraction. It crystallizes in the orthogonal space group Pca21 with unit cell parameters: a=1.509 6(3) nm, b=0.611 1(1) nm, c=3.216 4(6) nm, and V=2.967 1(10) nm3, Z=4, R=0.032 7, wR=0.086 7. The Cd atom is seven-coordinated by four O atoms and two N atoms from two chelating DPIA- ligands and one water molecule, and displays a distorted pentagonal bipyramid coordination geometry. Each DPIA- ligand bridges two adjacent Cd atoms, forming a infinite chain along the a axis direction. The Cd...Cd separation within the polymer is 0.765 0(3) nm. A layer structure which parallels to the ab plane is further constructed by hydrogen bonding interactions. CCDC: 254247.展开更多
By describing the technique of port connection and flow chart ofR/W operation between 24LC01, serial E2PROM, and EM78P447A, features of EM78P447 and its connection with I2C serial bus are introduced. In the end, the p...By describing the technique of port connection and flow chart ofR/W operation between 24LC01, serial E2PROM, and EM78P447A, features of EM78P447 and its connection with I2C serial bus are introduced. In the end, the programe of writing operation is given.展开更多
Objective To elucidate the expression and clinical significance or C-erbB-2 in the tissue of lung cancer. Method Immunohistochemistry method was used to detect the protein expression or C-erbB-2 in lung can- cer tissu...Objective To elucidate the expression and clinical significance or C-erbB-2 in the tissue of lung cancer. Method Immunohistochemistry method was used to detect the protein expression or C-erbB-2 in lung can- cer tissue. Results The positive expression rate of C-erbB-2 protein in 38 cases or lung cancer was 53. 3% (21/38), which was higher than those in lung benign control group (P<0.001). The significant correlation were found between the protein level and tumor stage(r= +0. 64,P<0.02). The order was stage IV>stage Ⅲ>stage,Ⅱ>stage I. There was no correlation among protein expression or C-erhB-2 in various histological types of lung cancer (P>0.05 for all). Conclusion The positive expression rates of C-erbB-2 were significantly higher in lung cancer group than those in benign control group. There is significant correlation between C-erbB-2 expression and lung cancer stage. There is no correlation among protein expression of C-erbB-2 and histological types or lung cancer.展开更多
文摘Superfine composite powders of CeO2-ZrO2 (CZ) and CeO2-ZrO2-La2O3 (CZL) were prepared by hydrothermal method. The effects of pH?temperature and time for hydrothermal process on the performance of the resulting powders were studied. The optimized reaction parameters were on follows: the precursor′s pH≈9.0, hydrothermal temperature of 200 ℃ holding for 2 h. Thermal stable powders with average particle size smaller than 10 nm and specific surface area of 171 m2·g-1 were obtained. A BET specific surface area was still at 44 m2·g-1 after calcination at 1 000 ℃ for 6 hours.
文摘The crystal structure of {[Cd(sulfadiazine)2]n[Cd(sulfadiazine)2·H2O]n} (1) comprises of two different Cd centers in which sulfadiazine is used as a quadridentate and bidentate ligand to coordinate to Cd1 center, while it acts as a tridentate and bidentate ligand to bridge to Cd2 center, and the oxygen atom from water also coordinates to Cd2 center. As a result, the title compound bears two different 1D chain. CCDC: 274945.
文摘A novel one-dimensional coordination polymer, [Cd( μ-DPIA)2(H2O)]n (HDPIA=4,5-Diphenylimidazole-1-acetic acid), was synthesized and characterized by the element analysis, IR and single crystal X-ray diffraction. It crystallizes in the orthogonal space group Pca21 with unit cell parameters: a=1.509 6(3) nm, b=0.611 1(1) nm, c=3.216 4(6) nm, and V=2.967 1(10) nm3, Z=4, R=0.032 7, wR=0.086 7. The Cd atom is seven-coordinated by four O atoms and two N atoms from two chelating DPIA- ligands and one water molecule, and displays a distorted pentagonal bipyramid coordination geometry. Each DPIA- ligand bridges two adjacent Cd atoms, forming a infinite chain along the a axis direction. The Cd...Cd separation within the polymer is 0.765 0(3) nm. A layer structure which parallels to the ab plane is further constructed by hydrogen bonding interactions. CCDC: 254247.
基金Research on Electromagnetic Scatter Character of very Complicate Object(69571021)
文摘By describing the technique of port connection and flow chart ofR/W operation between 24LC01, serial E2PROM, and EM78P447A, features of EM78P447 and its connection with I2C serial bus are introduced. In the end, the programe of writing operation is given.
文摘Objective To elucidate the expression and clinical significance or C-erbB-2 in the tissue of lung cancer. Method Immunohistochemistry method was used to detect the protein expression or C-erbB-2 in lung can- cer tissue. Results The positive expression rate of C-erbB-2 protein in 38 cases or lung cancer was 53. 3% (21/38), which was higher than those in lung benign control group (P<0.001). The significant correlation were found between the protein level and tumor stage(r= +0. 64,P<0.02). The order was stage IV>stage Ⅲ>stage,Ⅱ>stage I. There was no correlation among protein expression or C-erhB-2 in various histological types of lung cancer (P>0.05 for all). Conclusion The positive expression rates of C-erbB-2 were significantly higher in lung cancer group than those in benign control group. There is significant correlation between C-erbB-2 expression and lung cancer stage. There is no correlation among protein expression of C-erbB-2 and histological types or lung cancer.
