Integration of water, fertilizer and pesticide is the final stage of agricultural development, which improves the utilization efficiency of water, fertilizer and pesticide. Starting from the design and realization of ...Integration of water, fertilizer and pesticide is the final stage of agricultural development, which improves the utilization efficiency of water, fertilizer and pesticide. Starting from the design and realization of water, fertilizer and pesticide integrated automatic control device, the paper discusses selection and application of fertilizer pesticides, use procedure, water, fertilizer and pesticide saving effect and receptive crowd in the application process of modern planting industry, so as to provide the basis for promotion and popularization of water, fertilizer and pesticide integration.展开更多
Objective:To explore the clinical application effect of self-designed automatic constant temperature moxibustion box.Methods:From June 2016 to January 2017,150 patients with neck,shoulder,back and leg pain admitted to...Objective:To explore the clinical application effect of self-designed automatic constant temperature moxibustion box.Methods:From June 2016 to January 2017,150 patients with neck,shoulder,back and leg pain admitted to our hospital were treated with moxibustion under the informed consent of the patients.The patients were randomly divided into control group and observation group,75 cases each.The group used traditional moxibustion box for moxibustion treatment,and the observation group used automatic constant temperature moxibustion box for moxibustion treatment for 15 days.After the treatment,the patient's safety,comfort,satisfaction and adverse reactions were compared,and the results were analyzed using SPSS 20 statistical software.Results:The comfort and satisfaction in study group were all superior to that of control group,with statistically significant difference(P<0.01).For patient's safety,the ratio of patients suffered from scald in study and control groups was 5.3/100 and 0,respectively.Conclusions:It is of great significance for improving clinical efficacy and preventing medical risks.It is worthy of clinical application.展开更多
This paper uses a Grasshopper Optimization Algorithm (GOA) optimized PDF plus (1 + PI) controller for Automatic generation control (AGC) of a power system with Flexible AC Transmission system (FACTS) devices. Three di...This paper uses a Grasshopper Optimization Algorithm (GOA) optimized PDF plus (1 + PI) controller for Automatic generation control (AGC) of a power system with Flexible AC Transmission system (FACTS) devices. Three differently rated reheat turbine operated thermal units with appropriate generation rate constraint (GRC) are considered along with different FACTS devices. A new multistage controller design structure of a PDF plus (1 + PI) is introduced in the FACTS empowered power system for AGC while the controller gains are tuned by the GOA. The superiority of the proposed algorithm over the Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) algorithms is demonstrated. The dynamic responses of GOA optimized PDF plus (1 + PI) are compared with PIDF, PID and PI controllers on the same system. It is demonstrated that GOA optimized PDF plus (1 + PI) controller provides optimum responses in terms of settling time and peak deviations compared to other controllers. In addition, a GOA-tuned PDF plus (1 + PI) controller with Interline Power Flow Controller (IPFC) exhibits optimal results compared to other FACTS devices. The sturdiness of the projected controller is validated using sensitivity analysis with numerous load patterns and a wide variation of parameterization. To further validate the real-time feasibility of the proposed method, experiments using OPAL-RT OP5700 RCP/HIL and FPGA based real-time simulations are carried out.展开更多
基金Supported by Science and Technology Program of Guangxi Province(GK AD19245169,GK AD18281072,GK AA17202037,GK AB16380164)。
文摘Integration of water, fertilizer and pesticide is the final stage of agricultural development, which improves the utilization efficiency of water, fertilizer and pesticide. Starting from the design and realization of water, fertilizer and pesticide integrated automatic control device, the paper discusses selection and application of fertilizer pesticides, use procedure, water, fertilizer and pesticide saving effect and receptive crowd in the application process of modern planting industry, so as to provide the basis for promotion and popularization of water, fertilizer and pesticide integration.
文摘Objective:To explore the clinical application effect of self-designed automatic constant temperature moxibustion box.Methods:From June 2016 to January 2017,150 patients with neck,shoulder,back and leg pain admitted to our hospital were treated with moxibustion under the informed consent of the patients.The patients were randomly divided into control group and observation group,75 cases each.The group used traditional moxibustion box for moxibustion treatment,and the observation group used automatic constant temperature moxibustion box for moxibustion treatment for 15 days.After the treatment,the patient's safety,comfort,satisfaction and adverse reactions were compared,and the results were analyzed using SPSS 20 statistical software.Results:The comfort and satisfaction in study group were all superior to that of control group,with statistically significant difference(P<0.01).For patient's safety,the ratio of patients suffered from scald in study and control groups was 5.3/100 and 0,respectively.Conclusions:It is of great significance for improving clinical efficacy and preventing medical risks.It is worthy of clinical application.
文摘This paper uses a Grasshopper Optimization Algorithm (GOA) optimized PDF plus (1 + PI) controller for Automatic generation control (AGC) of a power system with Flexible AC Transmission system (FACTS) devices. Three differently rated reheat turbine operated thermal units with appropriate generation rate constraint (GRC) are considered along with different FACTS devices. A new multistage controller design structure of a PDF plus (1 + PI) is introduced in the FACTS empowered power system for AGC while the controller gains are tuned by the GOA. The superiority of the proposed algorithm over the Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) algorithms is demonstrated. The dynamic responses of GOA optimized PDF plus (1 + PI) are compared with PIDF, PID and PI controllers on the same system. It is demonstrated that GOA optimized PDF plus (1 + PI) controller provides optimum responses in terms of settling time and peak deviations compared to other controllers. In addition, a GOA-tuned PDF plus (1 + PI) controller with Interline Power Flow Controller (IPFC) exhibits optimal results compared to other FACTS devices. The sturdiness of the projected controller is validated using sensitivity analysis with numerous load patterns and a wide variation of parameterization. To further validate the real-time feasibility of the proposed method, experiments using OPAL-RT OP5700 RCP/HIL and FPGA based real-time simulations are carried out.
