Abstract: In one example in accordance with the present disclosure, an electronic device is described. An example electronic device includes a processor and memory storing executable instructions that when executed cause the processor to receive an image of a polymer melt pool captured during crystallization of the polymer melt pool. The instructions also cause the processor to measure brightness of the polymer melt pool in the captured image. The instructions further cause the processor to determine crystallization information of the polymer melt pool based on the measured brightness of the polymer melt pool.

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: 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 an image forming apparatus and a photoreceptor cartridge usable in the image forming apparatus. The image forming apparatus comprises a chamber part, right and left side walls, a first guide groove, a second guide groove, an accessory plate that is a first operation unit, and a writing unit that is a second operation unit. The photoreceptor cartridge comprises a first guide axle, a second guide axle, a first surface and a second surface. A distance between a groove opening of the first guide groove and the accessory plate is shorter than a distance between the second guide axle and the first surface, and a distance between a groove opening of the second guide groove and the writing unit is shorter than a distance between the first guide axle and the second surface.

Abstract: The present invention provides an image forming apparatus and a photoreceptor cartridge usable in the image forming apparatus. The image forming apparatus comprises a chamber part, right and left side walls, a first guide groove, a second guide groove, an accessory plate that is a first operation unit, and a writing unit that is a second operation unit. The photoreceptor cartridge comprises a first guide axle, a second guide axle, a first surface and a second surface. A distance between a groove opening of the first guide groove and the accessory plate is shorter than a distance between the second guide axle and the first surface, and a distance between a groove opening of the second guide groove and the writing unit is shorter than a distance between the first guide axle and the second surface.