Abstract: A peridynamic method having an added mirroring node according to embodiments of the present invention includes: a first step of calculating a shape tensor of a first node; a second step of calculating force state vectors of the first node and each of a plurality of second nodes by using the shape tensor; and a third step of calculating a peridynamic motion equation of the first node by using the force state vectors. The first node is a node located on a boundary of a structure and has a predetermined size horizon region, the plurality of second nodes is nodes in the horizon region, the plurality of second nodes includes one or more third nodes, and the third node is a second node having no node at a point which is origin-symmetrical based on the first node among the plurality of second nodes. In the first step, the shape tensor is calculated by using a position value in which the third node is origin-symmetrical based on the first node.

Abstract: Discussed is a cosmetic dispensing system including a terminal and a cosmetic dispenser in near field communication with the terminal, including a memory storing applications for dispensing the cosmetic, a display receiving a command for inputting a cosmetic provision amount and a command for selecting a cosmetic dispensing icon, and a controller processing the command for inputting the cosmetic provision amount and the command for selecting the cosmetic dispensing icon received form the display. The command for inputting the cosmetic provision amount is data determined based on a number of times of use of cosmetics inputted by a user.

Abstract: A peridynamic method having an added mirroring node according to embodiments of the present invention includes: a first step of calculating a shape tensor of a first node; a second step of calculating force state vectors of the first node and each of a plurality of second nodes by using the shape tensor; and a third step of calculating a peridynamic motion equation of the first node by using the force state vectors. The first node is a node located on a boundary of a structure and has a predetermined size horizon region, the plurality of second nodes is nodes in the horizon region, the plurality of second nodes includes one or more third nodes, and the third node is a second node having no node at a point which is origin-symmetrical based on the first node among the plurality of second nodes. In the first step, the shape tensor is calculated by using a position value in which the third node is origin-symmetrical based on the first node.

Abstract: A lighting installation assembly includes a first bracket directly or indirectly fixed to a ceiling or a wall surface, and a second bracket fastened to the first bracket in a state in which a lighting is fixed to the second bracket. One of the first bracket and the second bracket is formed with an interlocking wing part and the other is formed with an interlocking blade part configured to be caught on the interlocking wing part. When the second bracket is rotated in a forward direction in a state in which the interlocking wing part is caught on the interlocking blade part, the second bracket is fastened to the first bracket such that the rotation of the second bracket in the forward or backward direction is suppressed. One worker may easily install the lighting installation assembly on a ceiling or a wall surface and rigidly assembly the lighting installation assembly.