Abstract: There are provided a method and a system for acquiring visual explanation information independent of the purpose, type, and structure of a visual intelligence model. The visual explanation information acquisition system of the visual intelligence model according to an embodiment may input N transformed images which are generated by diversifying an input image to a deep learning-based visual intelligence model and may acquire outputted results, may generate attributes of the visual intelligence model from the acquired results, may derive, from losses of the visual intelligence model which are calculated from the generated attributes, basic data for generating a visual explanation map for visually explaining a result derivation rationale of the visual intelligence model, and may generate a visual explanation map from the derived basic data.

Abstract: The present invention provides a novel promoter variant in which some nucleotides of the glyceraldehyde-3-phosphate dehydrogenase (gapA) gene promoter of Escherichia coli are deleted. The novel promoter variant according to the present invention can constitutively express a target protein at a high level, particularly an enzyme, in Escherichia coli. Therefore, a target protein, particularly an enzyme, can be economically mass-produced using a recombinant strain transformed with an expression vector containing the novel promoter variant according to the present invention. For example, allulose epimerase can be economically mass-produced or allulose can be economically mass-produced from fructose using a recombinant strain transformed with an expression vector containing the novel promoter variant according to the present invention.

Abstract: A battery container has improved energy density and can be used in an energy storage system. The battery container includes a container body, a coupling unit configured to couple different container bodies, and a load support unit configured to support a vertical load of the container body.

Abstract: The present invention provides a novel allulose epimerase variant in which an amino acid residue present at a specific position of an amino acid sequence of wild-type D-allulose 3-epimerase derived from Flavonifractor plautii is substituted with another amino acid residue, and various uses thereof. The novel allulose epimerase variant according to the present invention has a higher conversion activity of fructose to allulose than that of the wild-type D-allulose 3-epimerase derived from Flavonifractor plautii or a D-allulose epimerase variant W29K/G216S/M234I, and has excellent thermal stability especially under high temperature conditions of 60° C. or higher, thereby preventing contamination during an industrial-scale enzymatic conversion reaction for the mass production of allulose, shortening the production time, and reducing the production costs.

Abstract: An energy storage system according to the present disclosure includes at least one battery rack including a plurality of stacked battery modules; a container accommodating the at least one battery rack, wherein the container includes a bottom plate in which the at least one battery rack is disposed; and a fire fighting water collection chamber disposed lower than the bottom plate and having at least one side in communication with the bottom plate to allow a fire fighting water dropped from the at least one battery rack to enter.

Abstract: A battery rack according to the present disclosure includes a plurality of battery modules; a rack case having receiving portions, each receiving portion configured to and receive one of the plurality of battery modules at each predetermined height, and each receiving portion having a structure in which upper and lower sides and left and right sides are closed and front and rear sides are open; a fire fighting water supply pipe connected to each of the battery modules disposed in the receiving portions which supplies a fire fighting water when a fire occurs; and a drain guide disposed on an outer surface of the rack case including at least one surface of a front outer surface or a rear outer surface of the rack case, the drain guide being configured to guide drainage of the fire fighting water.

Abstract: A tennis trainer includes a generally L-shaped arm having a ball holder at one end and pivotally engaged to a support at the other. Impact against the ball in a direction axially along the ball-supporting section of the arm is initially absorbed by a resilient section of the other section of the arm. A housing on the support includes a slot through which the arm extends and a rotatable cylinder to which the arm is secured. Bias springs oppose rotation of the cylinder and hence the arm. The housing is mountable upside down to permit the trainer to be used for back hand practice or for left handed fore hand practice. Various bending of the arm and vertical positioning of the support permits the ball to be positioned at various heights and positions.