3results about How to "Increase resistance level" patented technology

The invention discloses a composite protective structure resistant to blast shock which is mainly a point truss honeycomb integral protective structure formed by a honeycomb tensile layer and a lattice truss-type compression resistance layer through welding spots and connecting keys, and a foam energy absorbing layer is added on the outer layer. According to the composite protective structure, theforce transmission path of a concrete protective structure under the action of blast is innovatively optimized, the resistance level of the protective structure can be greatly improved, and the structure ductility is improved; and the dispersion of concrete fragments in the structure can be restrained, and the phenomenon of blast and explosion-induced collapse of similar traditional concrete protective structures is eliminated.

This invention provides a recombinant acetyl-CoA carboxylase encoding gene and its applications. Mutations at positions 5374, 5229, 5335, 5336, and 5493 in the recombinant acetyl-CoA carboxylase encoding gene provided by this invention can induce more significant resistance in rice expressing this recombinant acetyl-CoA carboxylase. In particular, it shows a significant increase in resistance to seven ACCase inhibitors from three major chemically distinct classes: arbutin (APP), quizalofop-P-ethyl, quizalofop-P-ethyl, and flupyrflupyr; cyclohexenone (CHD), clethodim and clodinafop-P-ethyl; and neophenylpyrazoline (DEN), clodinafop-P-ethyl.

This utility model discloses a connection structure and device for precast concrete components. The connection structure includes a connector and at least one opening groove on the outer edge of an end plate on the precast concrete component. The opening groove penetrates the upper and lower surfaces of the end plate, and the connector is embedded in the opening groove. The connection device includes two end plates located at the ends of adjacent precast concrete components, and also includes the connection structure. The opening grooves on the outer edges of the two end plates of the two precast concrete components are vertically aligned, and the two end plates are connected together by the connector embedded in the two vertically aligned opening grooves. This utility model has a simple structural design, enabling rapid and reliable connection of multiple precast concrete components.