Abstract:
The present invention provides to a gallium nitride (GaN) semiconductor and a method of manufacturing the same, capable of reducing crystal defects caused by a difference in lattice parameters, and minimizing internal residual stress. In particular, since a high-quality GaN thin film is formed on a silicon wafer, manufacturing costs can be reduced by securing high-quality wafers with a large diameter at a low price, and applicability to a variety of devices and circuit can also be improved.
Abstract:
Disclosed are a semiconductor device, a light emitting device, and a method of manufacturing the same. The semiconductor device includes a substrate, a plurality of rods aligned on the substrate, a metal layer disposed on the substrate between the rods, and a semiconductor layer disposed on and between the rods. Electrical and optical characteristics of the semiconductor device are improved due to the metal layer.
Abstract:
The present invention provides to a gallium nitride (GaN) semiconductor and a method of manufacturing the same, capable of reducing crystal defects caused by a difference in lattice parameters, and minimizing internal residual stress. In particular, since a high-quality GaN thin film is formed on a silicon wafer, manufacturing costs can be reduced by securing high-quality wafers with a large diameter at a low price, and applicability to a variety of devices and circuit can also be improved.
Abstract:
Disclosed are a semiconductor device, a light emitting device, and a method of manufacturing the same. The semiconductor device includes a substrate, a plurality of rods aligned on the substrate, a metal layer disposed on the substrate between the rods, and a semiconductor layer disposed on and between the rods. Electrical and optical characteristics of the semiconductor device are improved due to the metal layer.
Abstract:
The present invention relates to a wrinkle-removing apparatus. When the wrinkle removing apparatus of the present invention adopting a vacuum suction system is tightly applied to the shallow wrinkles on a forehead or to deep wrinkles, a vacuum is created by means of the elasticity of the wrinkle-removing apparatus, in order to strongly suck and pull wrinkles outwardly from the skin. Repeated use of the apparatus with the above-described condition enables a substance such as subcutaneous fat or collagen to replace the wrinkles at the back surface of the wrinkled skin when wrinkles are pulled outwardly from the skin, and finally, skin wrinkles are removed even when the apparatus is no longer used.
Abstract:
Disclosed is a guidance service method and an apparatus thereof. That is, the method provides a terminal device that connects to a voice call with a step-based service menu through voice information, receives selection information of the terminal device based on the step-based service menu, through the voice call, and displays, in the terminal, a service screen configured based on the selection information of the terminal device that is received through the voice call, in parallel with reception of the voice information, and thereby improving understanding and convenience of the guidance service for a user.
Abstract:
Disclosed herein are cationic polymer nanocapsules encapsulating an oil-soluble active ingredient, and a cosmetic composition containing the same. The cationic polymer nanocapsules have a molecular weight of 5,000-100,000, a surface potential of 5-100 mV and a particle size of 50-500 nm. Also, disclosed is a cosmetic composition containing said cationic polymer nanocapsules.
Abstract:
A structure of engine mounting for supporting a pitch axle in a vehicle may include a front roll mount and a rear roll mount arranged on the pitch axle passing through a powertrain's center of gravity; wherein the weight of an engine is shared by the front roll mount and the rear roll mount.
Abstract:
The present invention relates to a handle assembly for an airtight container. The handle assembly, intended for an airtight container including a main body on which a plurality of hooks protruding outwardly are disposed on a circumference of the upper end thereof, and a cover on which a plurality of protruding hooks having insertion projections on either end thereof are disposed on the circumference thereof, the cover protruding outwardly so as to correspond to the hooks and opening or closing an upper side of the main body, includes: a pair of side members, each having an insertion hole in which each of the insertion projections of the cover is inserted, and a coupling groove having a predetermined size and being positioned spaced apart from the insertion hole; a central member including fixed parts on either end thereof such that the central member is inserted and fixed to the coupling grooves between the pair of the coupling grooves between the pair of side members; and a separation prevention unit preventing the fixed parts from being separated from the coupling grooves.
Abstract:
The present invention relates to a method of producing biofuel, more specifically a method of producing biofuel comprising the steps of generating monosugars from marine algae, or from polysaccharides extracted from marine algae by treating the marine algae or the polysaccharides with a hydrolytic enzyme and/or a hydrolytic catalyst; and fermenting the monosugars using a microorganism to produce biofuel. The method of producing biofuel of the present invention solve the problem of raw material suppliance since it uses marine algae as a raw material for biomass, and reduce the production costs by excluding lignin eliminating process that has been required by the conventional method using wood-based raw materials, resulting in economic and environmental advantages.