Abstract: The present disclosure relates to an organic electric element for realizing high luminous efficiency, and high heat resistance of the element, improve the color purity of the element, and increase the lifetime of the element.

Abstract: Provided is a mining bit and a method for manufacturing the same wherein a plurality of cutting tips are provided in such a manner as to be easily made with a high concentration of abrasive particles, rounded on a cutting surface to induce optimal abrasion, and have a shape of an arch having the same width and rounded on inner and outer surfaces thereof. The mining bit includes: the layers have a shape of an arch with flat surfaces in such a manner as to be laminated onto each other in a horizontal direction with respect to a cutting surface of each cutting tip, and a distance (D2) between the abrasive particles on the adjacent layers is less than a distance (D1) between the abrasive particles on each layer.

Abstract: A mining bit includes: a shank; and cutting tips attached to the shank, each cutting tip having a plurality of layers and a plurality of abrasive particles, wherein the layers have a shape of an arch with flat surfaces in such a manner as to be laminated onto each other in a horizontal direction with respect to a cut surface of each cutting tip, and a distance (D2) between the abrasive particles on the adjacent layers is less than a distance (D1) between the abrasive particles on each layer.

Abstract: Disclosed are a drill bit for drilling and a method for manufacturing same, in which the hardness of a body part of a shank can be selectively improved by performing rapid cooling in a forced cooling method after performing rapid heating selectively only on the body part of the shank in a high-frequency induction heating method after completing infiltration.

Abstract: Disclosed herein are an apparatus and method for displaying an image on the surface of a jewel using a previously distorted image. The apparatus for displaying an image on a surface of a jewel using a previously distorted image includes a distorted image generation unit for generating a distorted image corresponding to an original image that is desired to be displayed on a table facet of a jewel in consideration of characteristics of the jewel and characteristics of the original image, and a display unit for outputting visible light corresponding to the distorted image to the jewel so that the original image is displayed on the table facet of the jewel.

Abstract: Disclosed are a drill bit for drilling and a method for manufacturing same, in which the hardness of a body part of a shank can be selectively improved by performing rapid cooling in a forced cooling method after performing rapid heating selectively only on the body part of the shank in a high-frequency induction heating method after completing infiltration.

Abstract: A display driving device is disclosed which includes a source driver that supplies voltages to source lines connected to pixels, detects a slew time of the voltages of the source lines, and outputs the slew time, and a timing controller that receives the slew time from the source driver and updates a way for the source driver to control the voltages depending on the slew time.

Abstract: Disclosed are a drill bit for drilling and a method for manufacturing same, in which the hardness of a body part of a shank can be selectively improved by performing rapid cooling in a forced cooling method after performing rapid heating selectively only on the body part of the shank in a high-frequency induction heating method after completing infiltration.

Abstract: A reflective sheet with a dot-cut pattern for preventing both bright line and bright spot, and a method of manufacturing the same, is provided. The reflective sheet and method of manufacturing the same may be capable of reducing a manufacturing cost and also improving a manufacturing efficiency. The reflective sheet may include a bottom part including a hole for exposing a light source, the bottom part provided on a bottom surface of a cover bottom; a lateral part extending from the bottom part, the lateral part provided at a lateral surface of the cover bottom; a half-cut pattern formed in the boundary between the bottom part and the lateral part; and a plurality of dot-cut patterns formed at the lateral part.

Abstract: A secure file-deletion function providing apparatus includes a request input unit configured to receive a file deletion request to delete a file stored in an apparatus from a user; a file deletion unit for deleting the file included in the file deletion request, and a secure file-deletion unit for overwriting a region including a region that stores the file with a dummy value in order to make it more difficult and/or impossible to recover the file deleted by the file deletion unit.

Abstract: Provided is a mining bit and a method for manufacturing the same wherein a plurality of cutting tips are provided in such a manner as to be easily made with a high concentration of abrasive particles, rounded on a cut surface to induce optimal abrasion, and have a shape of an arch having the same width and rounded on inner and outer surfaces thereof. The mining bit includes: a shank; and cutting tips attached to the shank, each cutting tip having a plurality of layers and a plurality of abrasive particles, wherein the layers have a shape of an arch with flat surfaces in such a manner as to be laminated onto each other in a horizontal direction with respect to a cut surface of each cutting tip, and a distance (D2) between the abrasive particles on the adjacent layers is less than a distance (D1) between the abrasive particles on each layer.

Abstract: Disclosed herein are an apparatus and method for displaying an image on the surface of a jewel using a previously distorted image. The apparatus for displaying an image on a surface of a jewel using a previously distorted image includes a distorted image generation unit for generating a distorted image corresponding to an original image that is desired to be displayed on a table facet of a jewel in consideration of characteristics of the jewel and characteristics of the original image, and a display unit for outputting visible light corresponding to the distorted image to the jewel so that the original image is displayed on the table facet of the jewel.

Abstract: Disclosed herein are an apparatus and method for displaying an image on the surface of a jewel using a previously distorted image. The apparatus for displaying an image on a surface of a jewel using a previously distorted image includes a distorted image generation unit for generating a distorted image corresponding to an original image that is desired to be displayed on a table facet of a jewel in consideration of characteristics of the jewel and characteristics of the original image, and a display unit for outputting visible light corresponding to the distorted image to the jewel so that the original image is displayed on the table facet of the jewel.

Abstract: A display driving device is disclosed which includes a source driver that supplies voltages to source lines connected to pixels, detects a slew time of the voltages of the source lines, and outputs the slew time, and a timing controller that receives the slew time from the source driver and updates a way for the source driver to control the voltages depending on the slew time.

Abstract: Disclosed herein are an apparatus and method for displaying an image on the surface of a jewel using a previously distorted image. The apparatus for displaying an image on a surface of a jewel using a previously distorted image includes a distorted image generation unit for generating a distorted image corresponding to an original image that is desired to be displayed on a table facet of a jewel in consideration of characteristics of the jewel and characteristics of the original image, and a display unit for outputting visible light corresponding to the distorted image to the jewel so that the original image is displayed on the table facet of the jewel.

Abstract: An abnormal pattern analysis method includes determining a service application associated with analysis data, selecting at least one abnormal pattern analysis module in an abnormal pattern analysis framework based on the determined service application and performing an analysis for the analysis data through the selected at least one abnormal pattern analysis module to detect an abnormal pattern.

Abstract: A secure file-deletion function providing apparatus includes a request input unit configured to receive a file deletion request to delete a file stored in an apparatus from a user; a file deletion unit for deleting the file included in the file deletion request, and a secure file-deletion unit for overwriting a region including a region that stores the file with a dummy value in order to make it more difficult and/or impossible to recover the file deleted by the file deletion unit.

Abstract: A secure file-deletion function providing apparatus includes a request input unit configured to receive a file deletion request to delete a file stored in an apparatus from a user; a file deletion unit for deleting the file included in the file deletion request, and a secure file-deletion unit for overwriting a region including a region that stores the file with a dummy value in order to make it more difficult and/or impossible to recover the file deleted by the file deletion unit.

Abstract: Disclosed are a drill bit for drilling and a method for manufacturing same, in which the hardness of a body part of a shank can be selectively improved by performing rapid cooling in a forced cooling method after performing rapid heating selectively only on the body part of the shank in a high-frequency induction heating method after completing infiltration.

Abstract: A printed circuit board includes an upper circuit layer including a circuit pattern embedded in an upper part of an insulating layer, the circuit pattern being made of electroconductive metal; and a metal bump formed on the circuit pattern and the insulating layer