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Infectious haematopoietic necrosis virus (IHNV) is a serious pathogenic threat to rainbow trout (Oncorhynchus mykiss) and other salmonids. Major histocompatibility complex (MHC) polymorphisms have been closely linked to disease susceptibility. In this study, polymerase chain reaction‐single‐strand conformation polymorphism, cloning and sequencing were used to examine MHC class II β chain gene (DAB...
In this work, the shock survivability of MEMS gyroscopes under different shock conditions are investigated. Both shock experiments and numerical simulations are carried out to study the influences of the shock load level, duration and damping conditions. The simulation results are consistent with the experimental results. The results indicate that the selections of natural frequencies and air-damping...
Mine ventilation resistance is decided to coefficient of frictional resistance. and it is very vital to airflow distribution of using air place, With the special conditions of roadways of I-beam supporting in the article, the coefficient of frictional resistance is calculated through an improved BP artificial neural network model, and the article analyses the difference between BP neural network calculation...
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