The rapidity and accuracy of the initial alignment influence the performance of the strapdown inertial navigation system(SINS),compass alignment is one of the most important methods for initial alignment.The selection...The rapidity and accuracy of the initial alignment influence the performance of the strapdown inertial navigation system(SINS),compass alignment is one of the most important methods for initial alignment.The selection of the parameters of the compass alignment loop directly affects the result of alignment.Nevertheless,the optimal parameters of the compass loop of different SINS are also different Traditionally,the alignment parameters are determined by experience and trial-and-error,thus it cannot ensure that the parameters are optimal.In this paper,the Genetic Algorithm-Particle Swarm Optimization(GA-PSO) algorithm is proposed to optimize the compass alignment parameters so as to improve the performance of the initial alignment of strapdown gyrocompass.The experiment results showed that the GA-PSO algorithm can find out the optimal parameters of the compass alignment circuit quickly and accurately and proved the effectiveness of the proposed method.展开更多
In recent years,it has been shown that the late development of severe acute pancreatitis is often accompanied by gut microbiota dysbiosis,leading to an increase of pancreatic necrosis and peripancreatic infection.Basi...In recent years,it has been shown that the late development of severe acute pancreatitis is often accompanied by gut microbiota dysbiosis,leading to an increase of pancreatic necrosis and peripancreatic infection.Basic western medicine such as antibiotics can prevent infection but may disrupt the balance of gut microbiota.1As a treasure of traditional Chinese medicine,which has become one of the complementary and alternative therapy for gut microbiota disorder in severe acute pancreatitis.This article reviews the treatment of severe acute pancreatitis by regulating gut microbiota in multiple ways with traditional Chinese medicine,which would provide new approaches and ideas for clinical treatment of severe acute pancreatitis.展开更多
基金Research supported by the National Natural Science Foundation of China(Nos.4157069,41404002 and 61503404)the National Key Research and Development Program(2016YFB0501700,2016YFB0501701)。
文摘The rapidity and accuracy of the initial alignment influence the performance of the strapdown inertial navigation system(SINS),compass alignment is one of the most important methods for initial alignment.The selection of the parameters of the compass alignment loop directly affects the result of alignment.Nevertheless,the optimal parameters of the compass loop of different SINS are also different Traditionally,the alignment parameters are determined by experience and trial-and-error,thus it cannot ensure that the parameters are optimal.In this paper,the Genetic Algorithm-Particle Swarm Optimization(GA-PSO) algorithm is proposed to optimize the compass alignment parameters so as to improve the performance of the initial alignment of strapdown gyrocompass.The experiment results showed that the GA-PSO algorithm can find out the optimal parameters of the compass alignment circuit quickly and accurately and proved the effectiveness of the proposed method.
基金2019 Key postgraduate Innovation Project of Guangxi University of Traditional Chinese Medicine(No.YCSZ20190030).
文摘In recent years,it has been shown that the late development of severe acute pancreatitis is often accompanied by gut microbiota dysbiosis,leading to an increase of pancreatic necrosis and peripancreatic infection.Basic western medicine such as antibiotics can prevent infection but may disrupt the balance of gut microbiota.1As a treasure of traditional Chinese medicine,which has become one of the complementary and alternative therapy for gut microbiota disorder in severe acute pancreatitis.This article reviews the treatment of severe acute pancreatitis by regulating gut microbiota in multiple ways with traditional Chinese medicine,which would provide new approaches and ideas for clinical treatment of severe acute pancreatitis.
