Abstract: Disclosed is a method for producing 3-fucosyllactose using a wild Corynebacterium glutamicum strain. In addition, using the Corynebacterium glutamicum strain, which is a GRAS strain, 3-fucosyllactose can be produced at a high concentration, high yield and high productivity.

Abstract: An electronic device according to an embodiment of the disclosure includes a first antenna element that includes at least a portion of a housing, a metal component that is disposed adjacent to the first antenna element within the housing, a second antenna element that is disposed adjacent to the metal component, and a communication circuit that supplies a power to the first antenna element and the second antenna element. The communication circuit may indirectly supply a power to the metal component through at least one of the first antenna element and the second antenna element, and the communication circuit may transmit/receive a signal in a specified frequency band through an electrical path that is formed by the first antenna element, the second antenna element, and the metal component. Moreover, various embodiment found through the disclosure are possible.

Abstract: Disclosed is a method for producing 3?-fucosyllactose using a wild Corynebacterium glutamicum strain. In addition, using the Corynebacterium glutamicum strain, which is a GRAS strain, 3?-fucosyllactose can be produced at a high concentration, high yield and high productivity.

Abstract: An electronic device according to an embodiment of the disclosure includes a first antenna element that includes at least a portion of a housing, a metal component that is disposed adjacent to the first antenna element within the housing, a second antenna element that is disposed adjacent to the metal component, and a communication circuit that supplies a power to the first antenna element and the second antenna element. The communication circuit may indirectly supply a power to the metal component through at least one of the first antenna element and the second antenna element, and the communication circuit may transmit/receive a signal in a specified frequency band through an electrical path that is formed by the first antenna element, the second antenna element, and the metal component. Moreover, various embodiment found through the disclosure are possible.

Abstract: An electronic device is provided. The electronic device includes an antenna radiator, a first feeding terminal configured to supply a first frequency band signal to the antenna radiator, a second feeding terminal configured to supply a second frequency band signal to the antenna radiator, and a plurality of grounds electrically connected with the antenna radiator. The first feeding terminal is connected with the antenna radiator and at least one of the plurality of grounds through a passive circuit including a plurality of electrical paths.

Abstract: Provided is a fault processing method of a microgrid having a plurality of distributed energy resources, a plurality of distributed loads, lines that connect the distributed energy resources and the distributed loads, and an energy storage system (ESS) that stores power supplied from a part or all of the distributed energy resources and supplies the stored power to a part or all of the distributed loads, the fault processing method comprising steps of: disconnecting the distributed energy resources and an ESS power conditioning system (ESS-PCS) responsible for the ESS when a fault is detected in the microgrid system; connecting the ESS-PCS to the microgrid; determining a location of the fault while gradually increasing a voltage output from the ESS-PCS; and disconnecting the location of the fault and boosting the voltage output from the ESS-PCS to a normal operation level.

Abstract: Provided is an apparatus and method for in-phase (I)/quadrature (Q) separated dual multicarrier transmission in a coherent optical transmission system. A multicarrier transmission apparatus includes a carrier generator configured to generate a plurality of multicarrier signals; and a modulator configured to independently modulate input data with respect to an I component and a Q component of an optical carrier using the generated plurality of multicarrier signals.

Abstract: An electronic device is provided. The electronic device includes an antenna radiator, a first feeding terminal configured to supply a first frequency band signal to the antenna radiator, a second feeding terminal configured to supply a second frequency band signal to the antenna radiator, and a plurality of grounds electrically connected with the antenna radiator. The first feeding terminal is connected with the antenna radiator and at least one of the plurality of grounds through a passive circuit including a plurality of electrical paths.

Abstract: Provided is an apparatus and method for in-phase (I)/quadrature (Q) separated dual multicarrier transmission in a coherent optical transmission system. A multicarrier transmission apparatus includes a carrier generator configured to generate a plurality of multicarrier signals; and a modulator configured to independently modulate input data with respect to an I component and a Q component of an optical carrier using the generated plurality of multicarrier signals.

Abstract: A deposition apparatus includes: a deposition chamber; a deposition source in the deposition chamber; a film fixing portion configured to fix a film, provided with a deposition surface to which the deposition material is deposited; and a protection plate in the deposition chamber to prevent the deposition material from being deposited to side and upper walls in the deposition chamber so as to control the deposition material to be deposited only to a valid film formation area. A first opening sized to correspond to the valid film formation area of the deposition surface and at least one second opening formed in an external area of the valid film formation area are formed in the protection plate, and, when the deposition material is deposited to the deposition surface by the deposition source, the deposition material passed through the second opening forms an alignment mark on the deposition surface.

Abstract: Disclosed is a method of producing a polyester fire-retardant core matrix for a prefabricated panel. The method includes adding a fire-retardant agent to a polyester floss to allow the fire-retardant agent to permeate into the polyester floss, rolling the polyester floss, drenched by the fire-retardant agent, using a roller to promote permeation of the fire-retardant agent into the polyester floss, drawing the excess fire-retardant agent from the polyester floss using a perforated roller, of which an air suction force is easily controlled, drying the semi-dried polyester floss using a microwave generating unit, and foaming the dried polyester floss using a heater. The polyester fire-retardant core matrix has advantages of excellent fire-retardancy, high strength, and low absorptivity.

Abstract: Disclosed is a fiber sheet having a heat-treated surface layer, comprising a polyester fiber applicable as heat insulating and sound absorbing materials. The fiber sheet is prepared by forming a surface layer at a particular level by continuously heat-treating a surface of the fiber sheet using 1 to 3 sets of hot press rollers at a post-process, where one set of the rollers consists of two rollers vertically arranged. Compared to the conventional products, the fiber sheet of the present invention has improved desurfacing property and bending strength, and good workability and interior property, as well as having improved texture, sound absorbing property and moisture resistance by regulating the size of surface pores.