Abstract: An embodiment structural battery for an electric vehicle includes an upper rail and a lower rail coupled with the upper rail, wherein the upper rail and the lower rail are electrically connected with each other by a terminal and a wiring, so that the upper rail and the lower rail electrically connected with each other serve as both the structural battery and a roof rail of a vehicle body.

Abstract: An embodiment structural battery for an electric vehicle includes a plurality of cells stacked on each other, each of the plurality of cells including a positive electrode layer, an electrolyte layer, and a negative electrode layer stacked with the electrolyte layer between the positive and negative electrodes, wherein the plurality of cells define a battery by electrical connection of a positive electrode terminal and a negative electrode terminal respectively provided in the plurality of cells, structure reinforcement layers stacked on each of an outermost upper layer and an outermost lower layer of the plurality of cells, and carbon fiber current collecting layers stacked between each of the structure reinforcement layers and the plurality of cells.

Abstract: A stealth antenna includes an electromagnetic wave absorbing structure and an antenna patch embedded in the electromagnetic wave absorbing structure. The electromagnetic wave absorbing structure includes an upper dielectric layer, a lower dielectric layer and a spacer disposed between the upper dielectric layer and the lower dielectric layer. The upper dielectric layer includes a dielectric fabric and a conductive coating layer combined with at least a portion of the dielectric fabric. The lower dielectric layer includes a dielectric fabric and has a dielectric constant lower than that of the upper dielectric layer. The antenna patch is disposed between the spacer and the lower dielectric layer.

Abstract: An electromagnetic wave absorber includes a first layer and a second layer disposed on the first layer. The first layer may include a first reinforcing fiber impregnated in a first matrix. The second layer may include a second reinforcing fiber impregnated in a second matrix. The second reinforcing fiber may be plated with a metal magnetic coating layer. The electromagnetic wave absorber may provide electromagnetic wave absorbing ability with a low uncertainty without reducing mechanical properties due to the metal magnetic coating layer.

Abstract: An electromagnetic wave absorber includes a first layer and a second layer disposed on the first layer. The first layer may include a first reinforcing fiber impregnated in a first matrix. The second layer may include a second reinforcing fiber impregnated in a second matrix. The second reinforcing fiber may be plated with a metal magnetic coating layer. The electromagnetic wave absorber may provide electromagnetic wave absorbing ability with a low uncertainty without reducing mechanical properties due to the metal magnetic coating layer.

Abstract: An electromagnetic wave absorber includes a metal-coated fabric layer including a metal-coated fiber, and a supporting layer combined with the metal-coated fabric layer. The electromagnetic wave absorber may be easily manufactured and easily adjusted to change an absorbing ability, and may have superior mechanical properties.

Abstract: A multiple language support system includes a server system and a client system, wherein the server system inserts a 2-dimensional barcode, including dialog text and narration text in multiple languages and position information of areas in which the text is to be written, into a webtoon image, and the client system interprets the 2-dimensional barcode, generates a text layer comprising dialog text and narration text in a language selected by a user, and displays the combination of the webtoon image and the text layer. The multiple language support system includes a text information generation unit for generating text information including text and position information about the text, a text code image generation unit for generating a text code image by converting the text information into a 2-dimensional barcode, and an image synthesis unit for generating multilingual webtoon content by combining the webtoon image with the text code image.

Abstract: Disclosed herein is a fiber optic sensor using a transmissive grating panel and a mirror, in which displacement resulting from a temperature change in the external environment or a behavioral change in an object to be measured is measured using a transmissive grating panel, a reflection mirror and an optical fiber, and then enables various measurements to be taken of the temperature change in the external environment and the behavioral change (displacement, pressure, vibration or acceleration, etc.) in the object on the basis of the measured displacement.

Abstract: Disclosed herein is a fiber optic sensor using a transmissive grating panel and a mirror, in which displacement resulting from a temperature change in the external environment or a behavioral change in an object to be measured is measured using a transmissive grating panel, a reflection mirror and an optical fiber, and then enables various measurements to be taken of the temperature change in the external environment and the behavioral change (displacement, pressure, vibration or acceleration, etc.) in the object on the basis of the measured displacement.

Abstract: An apparatus for winding, in the form of a quadrupole, an optical fiber used for forming a sensor coil of a fiber optic gyroscope. A center shaft is supported by a pair of support sections. A cylindrical spool is fitted around the center shaft. A pair of winding disks are arranged adjacent to both ends of the spool so that they can be rotated about the center shaft. A pair of reels are mounted to facing surfaces of the winding disks so that both halves of the optical fiber to be wound on the spool can be wound on the reels, respectively. The winding disks can be rotated at the same velocity in opposite directions. The cylindrical spool is installed to be reciprocated along an axis of the center shaft. The respective reels mounted to the winding disks are spaced apart from each other by a predetermined interval.

Abstract: Disclosed is a fiber optic sensor system for sensing strain of the structure by using a wavelength swept fiber laser as a light source and using a fiber Bragg grating sensor as a fiber optic sensor, comprising: a reference fiber Bragg grating sensor, a fiber Bragg grating sensor array being branched from the reference fiber Bragg grating sensor through a coupler; a strain rate measuring coordinate signal-outputting means adapted to output an optical signal having a certain wavelength, an optical detector being connected to the coupler from which the fiber Bragg grating sensor group and the strain measuring coordinate signal-outputting means are branched for detecting output signals generated from the strain measuring coordinate signal-outputting means.