Objective:To explore the effect of predictive diet guidance in radiotherapy nursing of esophageal cancer.Methods:96 patients with esophageal cancer in our hospital(from January 2019 to January 2021)were randomly divid...Objective:To explore the effect of predictive diet guidance in radiotherapy nursing of esophageal cancer.Methods:96 patients with esophageal cancer in our hospital(from January 2019 to January 2021)were randomly divided into group A and group B.Group A(48 cases)received routine nursing,and group B(48 cases)received predictive dietary guidance on the basis of group A.The incidence of adverse reactions,clinical indicators and quality of life were compared between the two groups.Results:After nursing,the incidence of adverse reactions of radiotherapy in group B was lower than that in group A,the clinical indexes in group B were higher than those in group A,and the quality of life in group B was higher than that in group A(P<0.05).Conclusion:For esophageal cancer patients undergoing radiotherapy,the implementation of predictive diet guidance can effectively reduce complications,improve the quality of life of patients,and improve nursing satisfaction.The effect is ideal,which is worthy of widespread application.展开更多
The design of optimal guidance law for intercepting a near-space hypersonic maneuvering target with bounded inputs is considered. Firstly, a maneuvering model for near-space hypersonic aircraft is given. Then, the air...The design of optimal guidance law for intercepting a near-space hypersonic maneuvering target with bounded inputs is considered. Firstly, a maneuvering model for near-space hypersonic aircraft is given. Then, the aircraft acceleration prediction can be obtained using this model with two neural networks. By using the target acceleration prediction, which is taken into account when calculating the Zero Effort Miss(ZEM), an optimal sliding-mode guidance law is proposed to fulfill the guidance task. An adaptive sliding-mode switch term is designed to deal with actuator saturation and prediction errors. Finally, numerical simulations show that the proposed guidance law can reduce the energy consumption and the terminal acceleration command of the interceptor effectively.展开更多
文摘Objective:To explore the effect of predictive diet guidance in radiotherapy nursing of esophageal cancer.Methods:96 patients with esophageal cancer in our hospital(from January 2019 to January 2021)were randomly divided into group A and group B.Group A(48 cases)received routine nursing,and group B(48 cases)received predictive dietary guidance on the basis of group A.The incidence of adverse reactions,clinical indicators and quality of life were compared between the two groups.Results:After nursing,the incidence of adverse reactions of radiotherapy in group B was lower than that in group A,the clinical indexes in group B were higher than those in group A,and the quality of life in group B was higher than that in group A(P<0.05).Conclusion:For esophageal cancer patients undergoing radiotherapy,the implementation of predictive diet guidance can effectively reduce complications,improve the quality of life of patients,and improve nursing satisfaction.The effect is ideal,which is worthy of widespread application.
基金supported by the National Natural Science Foundation of China(No.61773142)。
文摘The design of optimal guidance law for intercepting a near-space hypersonic maneuvering target with bounded inputs is considered. Firstly, a maneuvering model for near-space hypersonic aircraft is given. Then, the aircraft acceleration prediction can be obtained using this model with two neural networks. By using the target acceleration prediction, which is taken into account when calculating the Zero Effort Miss(ZEM), an optimal sliding-mode guidance law is proposed to fulfill the guidance task. An adaptive sliding-mode switch term is designed to deal with actuator saturation and prediction errors. Finally, numerical simulations show that the proposed guidance law can reduce the energy consumption and the terminal acceleration command of the interceptor effectively.
