Abstract: A display device according to an embodiment includes: a substrate; a transistor that is disposed on the substrate; a light emitting diode that is disposed on the substrate, and connected to the transistor; and a passivation layer that is disposed between the transistor and the light emitting diode, wherein a surface step of the passivation layer is within a range of and including 1 nm to 30 nm.

Abstract: A cathode active material for a lithium secondary battery according to an embodiment includes lithium metal oxide particles containing lithium and nickel, and containing a small amount of cobalt or no cobalt. An average particle diameter, a modulus and a hardness of the lithium metal oxide particles are adjusted to satisfy a desired relation. A lithium secondary battery has improved high-temperature storage properties, structural stability and high power properties.

Abstract: According to various disclosed embodiments, a method for setting a date and time by an electronic device may include: displaying a user interface that includes a plurality of time points arranged at regular intervals along a circumferential direction in an edge area of a substantially circular dial and including a date change point, a first icon positioned at a first point among the plurality of time points, and a second icon positioned at a second point among the plurality of time points; receiving an input for at least one of the first icon and the second icon; displaying movement of the at least one of the first icon and the second icon on the plurality of time points based on the received input; and displaying a date and time corresponding to a movement direction and movement location of the at least one of the first icon and the second icon.

Abstract: According to various disclosed embodiments, a method for setting a date and time by an electronic device may include: displaying a user interface that includes a plurality of time points arranged at regular intervals along a circumferential direction in an edge area of a substantially circular dial and including a date change point, a first icon positioned at a first point among the plurality of time points, and a second icon positioned at a second point among the plurality of time points; receiving an input for at least one of the first icon and the second icon; displaying movement of the at least one of the first icon and the second icon on the plurality of time points based on the received input; and displaying a date and time corresponding to a movement direction and movement location of the at least one of the first icon and the second icon.

Abstract: According to various disclosed embodiments, a method for setting a date and time by an electronic device may include: displaying a user interface that includes a plurality of time points arranged at regular intervals along a circumferential direction in an edge area of a substantially circular dial and including a date change point, a first icon positioned at a first point among the plurality of time points, and a second icon positioned at a second point among the plurality of time points; receiving an input for at least one of the first icon and the second icon; displaying movement of the at least one of the first icon and the second icon on the plurality of time points based on the received input; and displaying a date and time corresponding to a movement direction and movement location of the at least one of the first icon and the second icon.

Abstract: According to various disclosed embodiments, a method for setting a date and time by an electronic device may include: displaying a user interface that includes a plurality of time points arranged at regular intervals along a circumferential direction in an edge area of a substantially circular dial and including a date change point, a first icon positioned at a first point among the plurality of time points, and a second icon positioned at a second point among the plurality of time points; receiving an input for at least one of the first icon and the second icon; displaying movement of the at least one of the first icon and the second icon on the plurality of time points based on the received input; and displaying a date and time corresponding to a movement direction and movement location of the at least one of the first icon and the second icon.

Abstract: According to various disclosed embodiments, a method for setting a date and time by an electronic device may include: displaying a user interface that includes a plurality of time points arranged at regular intervals along a circumferential direction in an edge area of a substantially circular dial and including a date change point, a first icon positioned at a first point among the plurality of time points, and a second icon positioned at a second point among the plurality of time points; receiving an input for at least one of the first icon and the second icon; displaying movement of the at least one of the first icon and the second icon on the plurality of time points based on the received input; and displaying a date and time corresponding to a movement direction and movement location of the at least one of the first icon and the second icon.

Abstract: According to various disclosed embodiments, a method for setting a date and time by an electronic device may include: displaying a user interface that includes a plurality of time points arranged at regular intervals along a circumferential direction in an edge area of a substantially circular dial and including a date change point, a first icon positioned at a first point among the plurality of time points, and a second icon positioned at a second point among the plurality of time points; receiving an input for at least one of the first icon and the second icon; displaying movement of the at least one of the first icon and the second icon on the plurality of time points based on the received input; and displaying a date and time corresponding to a movement direction and movement location of the at least one of the first icon and the second icon.

Abstract: According to various disclosed embodiments, a method for setting a date and time by an electronic device may include: displaying a user interface that includes a plurality of time points arranged at regular intervals along a circumferential direction in an edge area of a substantially circular dial and including a date change point, a first icon positioned at a first point among the plurality of time points, and a second icon positioned at a second point among the plurality of time points; receiving an input for at least one of the first icon and the second icon; displaying movement of the at least one of the first icon and the second icon on the plurality of time points based on the received input; and displaying a date and time corresponding to a movement direction and movement location of the at least one of the first icon and the second icon.

Abstract: The present invention relates to a portable neck pillow comprising a neck pillow main body part of a “U” shape to accommodate a user's neck therein and a pair of arm holder parts extending from both opposite end parts of the neck pillow main body part to insert and support the user's arms therein, so that the user's arms as well as the user's neck can be supported and the user can take a rest more comfortably.

Abstract: The present invention relates to a vertical furnace for fabricating an artificially lightweight fine-aggregates in that the aggregates can be fired in the vertical furnace in a floating state, so that the contacting time between the aggregates can be minimized, thereby preventing the adhesion between the aggregates and manufacturing the artificially lightweight fine-aggregates as an insulating concrete for building material, sound-absorbing materials, and lagging material.

Abstract: The present invention relates to the method of manufacturing crystallized glass composition stable in an acid solution from electric arc furnace dust wasted as an industrial waste in the course of melting and recycling steel scrap in an iron work, the method of manufacturing crystallized glass composition stable in an acid solution using steel dust wasted from an electric furnace, comprising steps of (1) mixing a silicate type glass frit and steel dust wasted from an electric furnace; (2) heating the mixed mixture and melting it to form the melted product; (3) rapidly chilling the melted product in air to form parent glass; (4) thermally treating the parent glass.

Abstract: The present invention relates to a vertical furnace for fabricating an artificially lightweight fine-aggregates in that the aggregate,; can he fired in the vertical furnace in a floating state, so that the contacting time between the aggregates can he minimized, thereby preventing the adhesion between the aggregates and manufacturing the artificially lightweight fine-aggregates as an insulating concrete for building material, sound-absorbing materials, and lagging material.

Abstract: This invention relates to a method for manufacturing an artificial ultra-lightweight aggregate having a specific gravity of 0.8-0.9 using raw sewage sludge. According to the invention, raw sewage sludge and water-free waste are mixed into a blend having a water content that allows the optimal extrusion, whereby excellent ultra-lightweight aggregate which has low water absorption rate and, low slump loss can be produced. In addition, the collective treatment of waste and the mass production of recycled products are possible without addition of a drying process for raw sewage sludge, and thus excellent ultra-lightweight aggregate can be supplied at low cost.

Abstract: This invention relates to a method for manufacturing an artificial ultra-lightweight aggregate having a specific gravity of 0.8-0.9 using raw sewage sludge. According to the invention, raw sewage sludge and water-free waste are mixed into a blend having a water content that allows the optimal extrusion, whereby excellent ultra-lightweight aggregate which has low water absorption rate and, low slump loss can be produced. In addition, the collective treatment of waste and the mass production of recycled products are possible without addition of a drying process for raw sewage sludge, and thus excellent ultra-lightweight aggregate can be supplied at low cost.

Abstract: A voice announcement technique of an electronic exchange system having a main processor for controlling a voice announcement function and a time switch which switches a voice announcement message to a subscriber interface unit includes a voice memory for storing coded data corresponding to words and pauses; a processor interface unit connected to the main processor, for interfacing a voice announcement command output from the main processor; a buffer unit connected to the processor interface unit, for buffering information for performing a voice announcement with the main processor; a digital signal processing unit connected to the buffer unit, for controlling the voice memory to access corresponding words and pauses if the voice announcement command has been received, thereby reproducing a voice announcement message; and an output device connected to the time switch via a sub highway, for outputting the voice announcement message to the sub highway under the control of the digital signal processing unit.