Abstract: A heat dissipation system for a high-speed train running in a low-vacuum tube is provided. Component groups that provide power and resistance for the movement and stop of a train are provided at a periphery, close to the train, in a low-vacuum tube. The component group is provided with a group A cooling assembly. The group A cooling assembly includes a group A cooling-type heat exchanger and/or a group A nozzle assembly attached to the back of the component group. Since the friction between the train running at high speed and the air in the low-vacuum tube and the operation of the key equipment in the low-vacuum tube will generate a lot of heat, the group A cooling assembly in the component group in the low-vacuum tube exchanges the heat with the air in the low-vacuum tube.

Abstract: The present application provides a compound dry powder inhalant, comprising baicalin, ambroxol hydrochloride, L-leucine and phosphate, wherein based on a mass of the compound dry powder inhalant, L-leucine accounts for 0-50%, phosphate accounts for 15-35%, and a total mass of baicalin and ambroxol hydrochloride accounts for 15-85%, and wherein a mass ratio of baicalin to ambroxol hydrochloride is 1:0.2 to 2. The compound dry powder inhalant has a Dv90?5 ?m. The drug combination of baicalin and ambroxol hydrochloride can effectively reduce inflammation and oxidative damage in lung tissue, alleviate pulmonary edema and histopathological changes, and reduce pulmonary dysfunction and pulmonary fibrosis.

Abstract: The present disclosure discloses a universal aptamer-based colloidal gold lateral flow test strip for detecting small-molecule substances and belongs to the fields of analytical chemistry, medicine, environment, food safety detection, nano-biosensing and the like. An AuNPs@poly-DNA probe is used for rapidly and sensitively capturing an aptamer, streptavidin sprayed in a test zone and streptavidin-biotin-DNAc sprayed in a control zone do not need to be changed, and another substance can be detected only by changing a nucleic acid chain part of the AuNPs@poly-DNA probe. A universal colloidal gold lateral flow test strip, which is rapid, sensitive and low in cost, has been developed. The test strip method for detecting small-molecule substances is simple, convenient and rapid, and can be used for detection at any time.

Abstract: An electronic control unit (ECU) assembly is provided, which includes a covering part, one or more metal oxide semiconductor field effect transistors (MOSFETs) (1), a substrate and an ECU main body. The covering part includes a lid element (3) having latch parts (6); the lid element (3) is secured onto the ECU main body via the latch parts (6); and the MOSFETs (1) are arranged between the lid element (3) and the substrate (9). The covering part further includes a middle element, which is in tight contact with and is elastically pressed against the MOSFETs (1), such that the MOSFETs (1) are brought into tight contact with the substrate. Thereby, the MOSFETs (1) are reliably fixed in the ECU assembly. A vehicle including the ECU assembly is also provided.