Abstract: A robot control system and a method may be operated in a microservices architecture (MSA)-based control environment. The robot control system includes an application programming interface (API) gateway that connects an authentication server for authenticating a robot, a management server for managing the robot, and an operation server for operating the robot in a Hyper Text Transfer Protocol (HTTP) communication method and an administrator terminal that communicates with the robot through WebRTC (Web Real-Time Communication).

Abstract: A method of preparing a carbon fiber including: preparing a precursor fiber for preparing a carbon fiber; and stabilizing the precursor fiber. The stabilization of the precursor fiber includes a first stabilization phase, a second stabilization phase, a third stabilization phase, and a fourth stabilization phase, which are set at four different temperatures between a temperature at which heat starts to be generated from the stabilization reaction of the precursor fiber and a temperature at which the generation of heat is maximized. Ozone gas is input while at least one phase of the third stabilization phase and the fourth stabilization phase is carried out.

Abstract: Disclosed are an adhesive film and a display member including the same. The adhesive film includes a matrix including a (meth)acrylic copolymer containing hydroxyl group and nanoparticles dispersed in the matrix, wherein a difference in cohesive energy between the matrix and the nanoparticles is about 20,000 J/mol or less.

Abstract: A service identifying and processing method using a wireless terminal message according to an exemplary embodiment of the present invention includes (a) receiving a wireless terminal message by a first entity which is a mobile device; and (b) expressing, by a first agent which is an information processing application program installed on the first entity, entity information of second entity based on the wireless terminal message and service confirmation information related to service provided by the second entity, through an application screen by the first agent.

Abstract: A spiral phase plate, according to one embodiment, for generating a Laguerre Gaussian beam by reflecting an incident beam emitted from a light source, may comprise: a first quadrant area in which the step height increase rate per unit angle decreases progressively in one direction from the point with the lowest step height to the point with the highest step height; and a second quadrant area in which the step height increase rate per unit angle increases progressively in the one direction.

Abstract: A display device includes a base substrate including a first area, a second area, and a third area between the first and second areas and bendable to a degree, insulating layers on the base substrate, a signal line overlapping the first to third areas and including a first line portion in the first area, a second line portion in the first area, the second area, and the third area and on a layer different from the first line portion, and a first connection portion in the first area and on a layer different those of the first and second line portions, wherein the second line portion is connected to a second portion of the first connection portion via a single second contact hole defined in an insulating layer between the second line portion and the second portion of the first connection portion, the insulating layer being an organic layer.

Abstract: An ion beam generating device includes a liquid metal ion source configured to melt metal and emit an ion beam, and an extractor disposed under the liquid metal ion source and configured to extract the ion beam emitted from the liquid metal ion source. The liquid metal ion source includes a storage configured to accommodate the metal, an emitter configured to receive the metal from the storage and emit the ion beam, and a heater configured to heat the emitter or the storage. The heater is configured to directly heat the metal accommodated in the storage to melt the metal into a liquid state, and an amount of the ion beam to be extracted is controlled by a voltage difference that changes based on a distance between the emitter and the extractor.

Abstract: A roller blade of rotation type is disclosed. The present invention provides a roller blade of rotation type which can be used as general shoes by rotating wheel mounting members with the operation of a rotation lever when a user of the roller blade should go up/down the stairs, or go across a crosswalk or an unpaved street and can be used again as a roller blade by rotating the wheel mounting members in a reverse direction after crossing the street. The roller blade having a boot according to the present invention has a frame combined to a sole of the boot; a rotation axle formed at the lower portion of the frame; wheel mounting members combined to both ends of the rotation axle; and a frame supporting member combined to the lower surface of the frame with maintaining a predetermined distance from the lower portion of the rotation axle.

Abstract: By lifting the other end of a grip, one end of the grip presses down a can lid portion, and a can opening is formed in a can upper wall while a score line delimiting the can lid portion is torn. The can lid portion is moved into the beverage can, an edge of the can lid portion, which is opposed to the other end of the grip is moved and contacted to a connection piece thereby to bend the connection piece along its score line. Accordingly, the continuously moving can lid portion pulls the connection piece toward the center of the beverage can, and a rotating member integrally connected to the connection piece is rotated about the line connecting the centers of a pair of projections. As the rotating member is rotated, an upper end of the rotating member is moved toward the can opening, and a bellows part of a straw, which is prevented from upward expanding, projects through the can opening and beyond the can upper wall. Therefore, it is possible to drink beverage through the projected straw.