Abstract: A genome-specific gene sequence fragment of female Acipenser Dabryanus and a method for identifying the sex of Acipenser Dabryanus are disclosed. The gene sequence fragment of Acipenser Dabryanus is used to identify the sex of Acipenser Dabryanus. The method includes: performing PCR amplification on the DNA of the Acipenser Dabryanus to be tested, and judging that the Acipenser Dabryanus to be tested is female when a resultant product from the amplification shows 3 bands on an agarose gel and the Acipenser Dabryanus to be tested is male when a resultant product from the amplification shows 2 bands on an agarose gel, alternatively, judging that the Acipenser Dabryanus to be tested is female when a resultant fragment from the amplification has a 1402 bp band and it is male if there is no 1402 bp band. The gene sequence fragment is used to quickly and efficiently identify the sex of Acipenser Dabryanus.

Abstract: The present invention provides a 2-pyridone derivative having a structure represented by formula I, or a stereoisomer or pharmaceutically acceptable salt thereof. Activity experiment results show that the 2-pyridone derivative provided in the present invention has higher activity and selectivity, and can be used to treat thyroid hormone receptor-related diseases.

Abstract: A blower for an airflow dyeing machine is provided. Each four nozzles of the airflow dyeing machine shares a blower, the blower being disposed at a central position of the four nozzles; wherein the blower comprises: a motor, a blowing machine, a primary air duct, a secondary air duct, an air inlet and an air outlet, the motor driving the blowing machine to rotate, the blowing machine comprising a blowing machine housing and impellers, the impellers being disposed inside the blowing machine housing, two air outlets of the blowing machine being oppositely arranged and are disposed on two sides of the blowing machine housing which respectively supply air to the two nozzles at the two sides, the air inlet of the blowing machine being on a side opposing the motor, the two air outlets of the blowing machine being respectively coupled to one ends of the two primary air ducts.

Abstract: A blower for an airflow dyeing machine is provided. Each four nozzles of the airflow dyeing machine shares a blower, the blower being disposed at a central position of the four nozzles; wherein the blower comprises: a motor, a blowing machine, a primary air duct, a secondary air duct, an air inlet and an air outlet, the motor driving the blowing machine to rotate, the blowing machine comprising a blowing machine housing and impellers, the impellers being disposed inside the blowing machine housing, two air outlets of the blowing machine being oppositely arranged and are disposed on two sides of the blowing machine housing which respectively supply air to the two nozzles at the two sides, the air inlet of the blowing machine being on a side opposing the motor, the two air outlets of the blowing machine being respectively coupled to one ends of the two primary air ducts.