To better meet the needs of crop growth and achieve energy savings and efficiency enhancements,constructing a reliable environmental model to optimize greenhouse decision parameters is an important problem to be solve...To better meet the needs of crop growth and achieve energy savings and efficiency enhancements,constructing a reliable environmental model to optimize greenhouse decision parameters is an important problem to be solved.In this work,a radial-basis function(RBF)neural network was used to mine the potential changes of a greenhouse environment,a temperature error model was established,a multi-objective optimization function of energy consumption was constructed and the corresponding decision parameters were optimized by using a non-dominated sorting genetic algorithm with an elite strategy(NSGA-Ⅱ).The simulation results showed that RBF could clarify the nonlinear relationship among the greenhouse environment variables and decision parameters and the greenhouse temperature.The NSGA-Ⅱ could well search for the Pareto solution for the objective functions.The experimental results showed that after 40 min of combined control of sunshades and sprays,the temperature was reduced from 31℃to 25℃,and the power consumption was 0.5 MJ.Compared with tire three days of July 24,July 25 and July 26,2017,the energy consumption of the controlled production greenhouse was reduced by 37.5%,9.1%and 28.5%,respectively.展开更多
Objective:To explore the effect of adjuvant tiotropium bromide therapy on the oxygenation function and inflammatory response in patients with COPD and type Ⅱ respiratory failure. Methods:a total of 58 patients with C...Objective:To explore the effect of adjuvant tiotropium bromide therapy on the oxygenation function and inflammatory response in patients with COPD and type Ⅱ respiratory failure. Methods:a total of 58 patients with COPD and type II respiratory failure treated in our hospital between August 2012 and January 2016 were collected and divided into observation group (n=29) and control group (n=29) according to the single blind randomized control method. Control group of patients received clinical routine treatment, and observation group of patients received adjuvant tiotropium bromide treatment on the basis of routine treatment. Before treatment and 30d after treatment, spirometer was used to determine pulmonary ventilation function;blood gas analyzer was used to test oxygenation function indexes;enzyme-linked immunosorbent assay (ELISA) was used to detect serum inflammatory factor levels.Results: Before treatment, differences in pulmonary ventilation function, oxygenation function and serum inflammatory factor levels were not statistically significant between two groups of patients. 30 d after treatment, FEV1, FEF75%, PEF, PaO2/FiO2, DO2 and O2ER levels of observation group were significantly higher than those of control group while VO2 level was significantly lower than that of control group;serum IL-1β, IL-18, IL-27 and CRP levels were significantly lower than those of control group.Conclusion:Adjuvant tiotropium bromide treatment can optimize the pulmonary ventilation and oxygenation function and reduce systemic inflammatory response in patients with COPD and type II respiratory failure.展开更多
基金Supported by the National"Thirteenth Five-year Plan"National Key Program(2016YFD0701301)the Heilongjiang Provincial Achievement Transformation Fund Project(NB08B-011)。
文摘To better meet the needs of crop growth and achieve energy savings and efficiency enhancements,constructing a reliable environmental model to optimize greenhouse decision parameters is an important problem to be solved.In this work,a radial-basis function(RBF)neural network was used to mine the potential changes of a greenhouse environment,a temperature error model was established,a multi-objective optimization function of energy consumption was constructed and the corresponding decision parameters were optimized by using a non-dominated sorting genetic algorithm with an elite strategy(NSGA-Ⅱ).The simulation results showed that RBF could clarify the nonlinear relationship among the greenhouse environment variables and decision parameters and the greenhouse temperature.The NSGA-Ⅱ could well search for the Pareto solution for the objective functions.The experimental results showed that after 40 min of combined control of sunshades and sprays,the temperature was reduced from 31℃to 25℃,and the power consumption was 0.5 MJ.Compared with tire three days of July 24,July 25 and July 26,2017,the energy consumption of the controlled production greenhouse was reduced by 37.5%,9.1%and 28.5%,respectively.
文摘Objective:To explore the effect of adjuvant tiotropium bromide therapy on the oxygenation function and inflammatory response in patients with COPD and type Ⅱ respiratory failure. Methods:a total of 58 patients with COPD and type II respiratory failure treated in our hospital between August 2012 and January 2016 were collected and divided into observation group (n=29) and control group (n=29) according to the single blind randomized control method. Control group of patients received clinical routine treatment, and observation group of patients received adjuvant tiotropium bromide treatment on the basis of routine treatment. Before treatment and 30d after treatment, spirometer was used to determine pulmonary ventilation function;blood gas analyzer was used to test oxygenation function indexes;enzyme-linked immunosorbent assay (ELISA) was used to detect serum inflammatory factor levels.Results: Before treatment, differences in pulmonary ventilation function, oxygenation function and serum inflammatory factor levels were not statistically significant between two groups of patients. 30 d after treatment, FEV1, FEF75%, PEF, PaO2/FiO2, DO2 and O2ER levels of observation group were significantly higher than those of control group while VO2 level was significantly lower than that of control group;serum IL-1β, IL-18, IL-27 and CRP levels were significantly lower than those of control group.Conclusion:Adjuvant tiotropium bromide treatment can optimize the pulmonary ventilation and oxygenation function and reduce systemic inflammatory response in patients with COPD and type II respiratory failure.
