Abstract: A battery box and a battery pack are provided. The battery box includes: a bottom plate; a side plate, where the side plate surrounds a peripheral edge of the bottom plate and is combined with the bottom plate to form an accommodating cavity for accommodating a battery module; and a plurality of protrusions disposed in the accommodating cavity and disposed on the bottom plate, where the protrusions are protruded from the bottom plate in a first direction and arranged in an array in a second direction and a third direction, a top portion of each of the protrusions is configured to contact a bottom portion of the battery module to lift the battery module.

Abstract: The disclosure provides a battery pack including a box body, a battery module, a cells contact system, and multiple heat-conducting portions. The box body is provided with an accommodating cavity; the battery module is disposed in the accommodating cavity; the cells contact system is disposed in the accommodating cavity and connected to the battery module; the cells contact system includes multiple busbars and multiple insulating brackets, and the multiple insulating brackets are arranged at intervals; and each of the insulating brackets is provided with one or more snap slot portions recessed towards a first direction, and the busbars are disposed in the one or more snap slot portions; and the heat-conducting portions are disposed in the one or more snap slot portions and connected to a side of the busbars away from the battery module.

Abstract: Provided are a method for detecting a free rare tumor cell in a human biological fluid sample and assay kit. Specifically, the method of the invention determines the existence of an active tumor cell in a biological fluid sample of a cancer patient by detecting and confirming the existence of glucose absorption capability of a karyocyte and expression of a leukocyte marker (CD45).

Abstract: A technology is provided to form p-type regions and to effectively reduce a contact resistance between the p-type region and an electrode. One embodiment of a nitride semiconductor device manufacturing method may include a magnesium layer formation step of forming a magnesium layer that comprises magnesium as a major component on a surface of a nitride semiconductor substrate. The method may include an annealing step of annealing the nitride semiconductor substrate on which the magnesium layer is formed.

Abstract: Provided are a method for detecting a free rare tumor cell in a human biological fluid sample and assay kit. Specifically, the method of the invention determines the existence of an active tumor cell in a biological fluid sample of a cancer patient by detecting and confirming the existence of glucose absorption capability of a karyocyte and expression of a leukocyte marker (CD45).

Abstract: Provided are a method for detecting a free rare tumor cell in a human biological fluid sample and assay kit. Specifically, the method of the invention determines the existence of an active tumor cell in a biological fluid sample of a cancer patient by detecting and confirming the existence of glucose absorption capability of a karyocyte and expression of a leukocyte marker (CD45).

Abstract: Provided are a method for detecting a free rare tumor cell in a human biological fluid sample and assay kit. Specifically, the method of the invention determines the existence of an active tumor cell in a biological fluid sample of a cancer patient by detecting and confirming the existence of glucose absorption capability of a karyocyte and expression of a leukocyte marker (CD45).