Methanol adsorption in zeolite and phosphorus modified zeolite has been investigated within the-cluster model framework of quantum chemical calculation. Full optimization and frequency analysis of all cluster model ha...Methanol adsorption in zeolite and phosphorus modified zeolite has been investigated within the-cluster model framework of quantum chemical calculation. Full optimization and frequency analysis of all cluster model have been carried out using Gaussian 94 soft package with Hartree-Fock method and B3LYP, B3P86 hybrid methods of density functional theory at 3-21G, 6-31G basis set level for hydrogen atoms and 6-31G+(d) basis set level for the other atoms performed on small cluster model for CH3OH, H3Al(OH)SiH2(H2PO4), H3Al(OH)SiH2(H3SiO4), H3Al(OH-CH3OH)SiH2(H2PO4) and H3A1(OH-CH3OH)SiH2(H3SiO4). The results show that phosphorus grafting in the zeolite framework has modified the chemical environment in the vicinity of the zeolite bridging hydroxyl. Phosphorus modification can enhance the acid strength of zeolite bridging hydroxyl, which was suggested by the lengthening of zeolite bridging hydroxyl O-H bond and the increasing methanol adsorption energy. This may be favorable to the initial CH3 OCH3 formation in the methanol to gasoline (MTG) process.展开更多
Objective: The efficacy of methotrexate and mifepristone in ectopic pregnancy. Methods: Using the random number table method, 50 patients were divided into study group and control group. 25 patients in each group used...Objective: The efficacy of methotrexate and mifepristone in ectopic pregnancy. Methods: Using the random number table method, 50 patients were divided into study group and control group. 25 patients in each group used methylamine to chatter, and the study group took mifepristone respectively to compare the treatment effect, clinical treatment, hemodynamics of different medication periods and early quality of survival after treatment. Results: two groups of patients significantly better than the control group, pregnancy time, abdominal pain after medication, vaginal sweating after medication duration is shorter, vaginal bleeding after medication, 3 days later MAP and SVI are significantly higher, and SVI, and MAP value significantly higher than normal group, SVI is lower than normal group, 1 month after hospital review, the quality of survival index score significantly higher than the control group, and there is a significant difference between the two (P <0.05). Conclusion: To explore the therapeutic effect of methoutrexate and mifepristone in ectopic pregnancy patients, promote the control of vaginal bleeding and abdominal pain, and stabilize its early hemodynamics and improve its early survival quality.展开更多
Objective: this paper mainly analyzes the practical value of biochemical tests in the current diagnosis of liver cirrhosis diseases. Methods: 60 patients were diagnosed in January 2019-2-2020 and were divided into obs...Objective: this paper mainly analyzes the practical value of biochemical tests in the current diagnosis of liver cirrhosis diseases. Methods: 60 patients were diagnosed in January 2019-2-2020 and were divided into observation and control groups. Biochemical tests were performed for all patients, such as total cholesterol, cholinesterase, total bile acid, and serum albumin. Results: Chinesterase and total cholesterol and serum albumin were lower than control and higher total bile acid, with statistically significant P <0.05. Conclusion: the use of biochemical test items in patients with cirrhosis disease can improve diagnostic accuracy and promote promotion.展开更多
基金the Doctor’s Foundation of University of Petroleum
文摘Methanol adsorption in zeolite and phosphorus modified zeolite has been investigated within the-cluster model framework of quantum chemical calculation. Full optimization and frequency analysis of all cluster model have been carried out using Gaussian 94 soft package with Hartree-Fock method and B3LYP, B3P86 hybrid methods of density functional theory at 3-21G, 6-31G basis set level for hydrogen atoms and 6-31G+(d) basis set level for the other atoms performed on small cluster model for CH3OH, H3Al(OH)SiH2(H2PO4), H3Al(OH)SiH2(H3SiO4), H3Al(OH-CH3OH)SiH2(H2PO4) and H3A1(OH-CH3OH)SiH2(H3SiO4). The results show that phosphorus grafting in the zeolite framework has modified the chemical environment in the vicinity of the zeolite bridging hydroxyl. Phosphorus modification can enhance the acid strength of zeolite bridging hydroxyl, which was suggested by the lengthening of zeolite bridging hydroxyl O-H bond and the increasing methanol adsorption energy. This may be favorable to the initial CH3 OCH3 formation in the methanol to gasoline (MTG) process.
文摘Objective: The efficacy of methotrexate and mifepristone in ectopic pregnancy. Methods: Using the random number table method, 50 patients were divided into study group and control group. 25 patients in each group used methylamine to chatter, and the study group took mifepristone respectively to compare the treatment effect, clinical treatment, hemodynamics of different medication periods and early quality of survival after treatment. Results: two groups of patients significantly better than the control group, pregnancy time, abdominal pain after medication, vaginal sweating after medication duration is shorter, vaginal bleeding after medication, 3 days later MAP and SVI are significantly higher, and SVI, and MAP value significantly higher than normal group, SVI is lower than normal group, 1 month after hospital review, the quality of survival index score significantly higher than the control group, and there is a significant difference between the two (P <0.05). Conclusion: To explore the therapeutic effect of methoutrexate and mifepristone in ectopic pregnancy patients, promote the control of vaginal bleeding and abdominal pain, and stabilize its early hemodynamics and improve its early survival quality.
文摘Objective: this paper mainly analyzes the practical value of biochemical tests in the current diagnosis of liver cirrhosis diseases. Methods: 60 patients were diagnosed in January 2019-2-2020 and were divided into observation and control groups. Biochemical tests were performed for all patients, such as total cholesterol, cholinesterase, total bile acid, and serum albumin. Results: Chinesterase and total cholesterol and serum albumin were lower than control and higher total bile acid, with statistically significant P <0.05. Conclusion: the use of biochemical test items in patients with cirrhosis disease can improve diagnostic accuracy and promote promotion.
