Abstract: Disclosed are a clamping mechanism and an electric tool. The clamping mechanism includes a main body, a locking cap, a spring chuck and an outer sleeve which is sleeved on a periphery of the locking cap and is configured to drive the locking cap to rotate, wherein the spring chuck includes at least two spring claws; the locking cap is connected with the main body, and the locking cap is able to move in a direction close to the main body, or move in a direction away from the main body, so that the spring claws are loosened; a ring piece is arranged at an end, close to the main body, of the locking cap, and an elastic piece is arranged between the ring piece and the locking cap; a first groove is arranged on an inner wall of the outer sleeve, and a cam block.

Abstract: A component for a vehicle interior may comprise a display system comprising a light source and a composite structure comprising a base layer, an intermediate layer and a cover layer. The base layer may comprise a surface comprising a set of elements. The composite structure may present a composite visual effect contributed by the composite structure and/or a visual effect contributed by light from the light source. The visual effect contributed by the composite structure may comprise a visual effect without light from the light source and/or a visual effect with light from the light source transmitted through the composite structure. The composite visual effect of the display system may comprise a visual effect of the form/elements of the base layer and/or the form/visual object/pattern of the intermediate layer and/or the form/visual object/pattern of the cover layer.

Abstract: A component for a vehicle interior may comprise a display system comprising a light source and a composite structure comprising a base layer, an intermediate layer and a cover layer. The base layer may comprise a surface comprising a set of elements. The composite structure may present a composite visual effect contributed by the composite structure and/or a visual effect contributed by light from the light source. The visual effect contributed by the composite structure may comprise a visual effect without light from the light source and/or a visual effect with light from the light source transmitted through the composite structure. The composite visual effect of the display system may comprise a visual effect of the form/elements of the base layer and/or the form/visual object/pattern of the intermediate layer and/or the form/visual object/pattern of the cover layer.

Abstract: A component for a vehicle interior configured to be operated by an operator control is disclosed. The component may comprise a cover movable relative to a base between a closed position and an open position, a spring-actuated mechanism for the cover and a motor-actuated mechanism for the cover. The cover may be moved in a tension/spring-actuated mode under actuation of the spring-actuated mechanism and/or a motor-actuated mode under actuation by the motor-actuated mechanism. The cover may move on a track system comprising a gear track. The motor-actuated mechanism may comprise a cable-drive system. The spring-actuated mechanism may use spring/tension action to open the cover. The component may comprise a receptacle movable between a retracted position and an extended position. The component may comprise a latch mechanism for the cover actuated by an operator control and/or movement of the receptacle. The component may provide a manually-operated mode.

Abstract: A Saccharomyces cerevisiae expression system and a construction method and application thereof, including an expression vector which includes, from 5? to 3?, a YEplac195 plasmid backbone, an exogenous gene expression cassette, and a selective marker gene expression cassette. The exogenous gene expression cassette includes from upstream to downstream an rDNA promoter, an internal ribosome entry site (IRES) sequence, an exogenous gene expression cassette, a poly(T) sequence, and an rDNA terminator. The selective marker gene expression cassette includes a promoter, a selective marker gene, and a transcription terminator.