Abstract: A liquefied gas storage tank includes a corner block disposed on a corner portion, wherein the corner block includes a lower block, an upper block and an upper connecting block, the upper block includes a first inner fixing unit and a second inner fixing unit respectively provided inside a first surface and a second surface, bonded and connected to a secondary barrier, and each having a structure in which a primary inner plywood, a primary corner insulating material, and a primary outer plywood are stacked, and an inner bent portion installed at a corner spatial portion between the first inner fixing unit and the second inner fixing unit, and both side surfaces of the inner bent portion that are perpendicular to the secondary barrier each have a height reduced from a total height of each of the first and second inner fixing units.

Abstract: The present invention relates to a method and an apparatus for diagnosing low voltage of a secondary battery cell. The method for diagnosing low voltage of a secondary battery cell according to an embodiment of the present invention includes pre-aging a battery cell, charging the battery cell according to a preset charging condition, measuring a parameter for determining low voltage failure of the battery cell, comparing the measured parameter with a reference parameter, and performing formation when the battery cell is determined to be normal.

Abstract: The liquefied gas storage tank includes a primary barrier, a primary insulation wall, a secondary barrier, and a secondary insulation wall. In a state where unit elements are arranged adjacent to each other, each of the unit elements being formed by stacking the secondary insulation wall, the secondary barrier, and a fixed insulation wall which is a part of the primary insulation wall, the primary insulation wall may comprise: a connection insulation wall provided in the space between the adjacent fixed insulation walls; first slits formed between the fixed insulation walls and the connection insulation wall when the connection insulation wall is inserted and installed between the adjacent fixed insulation walls; a plurality of second slits formed in a lengthwise direction and a widthwise direction of the fixed insulation walls; and a first insulating filler material for filling the first slits.

Abstract: A secondary battery comprises an electrode assembly, a can, and an insulator. The electrode assembly includes a first electrode, a separator, and a second electrode alternately stacked and wound. The can has an accommodation part accommodating the electrode assembly therein, and the can comprises a first can and a second can having cylindrical shapes open in a direction facing each other. The insulator insulates an overlapping portion between the first can and the second can. The first can is electrically connected to the first electrode, and the second can is electrically connected to the second electrode. The insulator has a short-circuit induction through-part defined by a through-hole or a cutoff line, such that a short circuit occurs between the first can and the second can through the short-circuit induction through-part when it is deformed in shape as heat or a pressure is applied to contract or expand the insulator.

Abstract: A display device and method are provided. The display device includes a display, a first sensor, and a processor. The first sensor senses movement. The processor is operatively connected with the display, and the first sensor, and operates in one of a first mode and a second mode, the first mode being a mode in which a dynamic image is displayed in the display and the second mode being a mode in which a static image is displayed in the display. In response to a movement of a user being sensed by the first sensor, in the second mode within a first critical time, the processor controls the display to display the static image.

Abstract: A display device and method are provided. The display device includes a display, a first sensor, and a processor. The first sensor senses movement. The processor is operatively connected with the display, and the first sensor, and operates in one of a first mode and a second mode, the first mode being a mode in which a dynamic image is displayed in the display and the second mode being a mode in which a static image is displayed in the display. In response to a movement of a user being sensed by the first sensor, in the second mode within a first critical time, the processor controls the display to display the static image.

Abstract: A display device includes a display, a first sensor sensing movement, a second sensor sensing illuminance, and a processor operatively connected with the display, the first sensor, and the second sensor. The processor is configured to operate in a first mode or a second mode. The first mode is a mode in which a dynamic image is displayed in the display and the second mode is a mode in which a static image is displayed in the display. The processor sets a first critical time for sensing the movement based on the illuminance. If specified movement of a user is sensed in the second mode within the first critical time, the processor controls the display to display the static image.

Abstract: A display device includes a display, a first sensor sensing movement, a second sensor sensing illuminance, and a processor operatively connected with the display, the first sensor, and the second sensor. The processor is configured to operate in a first mode or a second mode. The first mode is a mode in which a dynamic image is displayed in the display and the second mode is a mode in which a static image is displayed in the display. The processor sets a first critical time for sensing the movement based on the illuminance. If specified movement of a user is sensed in the second mode within the first critical time, the processor controls the display to display the static image.

Abstract: A puzzle assembly which can be adjust the degree of difficulty is disclosed. The disclosed puzzle assembly comprises a rotation shaft, a plurality of rotation plate members having slide grooves on the outer circumference and inserted into the rotation shaft, a plurality of puzzle pieces engaged with the slide grooves movably, wherein at least two of the rotation plate members are coupled together and rotate simultaneously.

Abstract: A puzzle assembly which can be adjust the degree of difficulty is disclosed. The disclosed puzzle assembly comprises a rotation shaft, a plurality of rotation plate members having slide grooves on the outer circumference and inserted into the rotation shaft, a plurality of puzzle pieces engaged with the slide grooves movably, wherein at least two of the rotation plate members are coupled together and rotate simultaneously.