Abstract: A droplet-blocking air conditioning system inside a train compartment according to an exemplary embodiment may include an air conditioning system unit for regulating the temperature and humidity of the air inside the train compartment; an air supply regulation unit which uses downdraft air to supply the compartment with the air that has had the temperature and humidity regulated by the air conditioning system unit, thereby causing the droplets remaining in the compartment to flow below the compartment due to the downdraft air; mechanical and electronic motors which control a degree of rotation of the air adjustment member according to the degree of rotation of a rotary shaft inside the air supply regulation unit; and an air discharge unit for discharging the droplets and the downdraft air to the outside of the compartment.

Abstract: A droplet-blocking air conditioning system inside a train compartment according to an exemplary embodiment may include an air conditioning system unit for regulating the temperature and humidity of the air inside the train compartment; an air supply regulation unit which uses downdraft air to supply the compartment with the air that has had the temperature and humidity regulated by the air conditioning system unit, thereby causing the droplets remaining in the compartment to flow below the compartment due to the downdraft air; mechanical and electronic motors which control a degree of rotation of the air adjustment member according to the degree of rotation of a rotary shaft inside the air supply regulation unit; and an air discharge unit for discharging the droplets and the downdraft air to the outside of the compartment.

Abstract: A gate driving circuit that minimizes output characteristic deviation between a plurality of scan output buffer units, and a display device comprising the gate driving circuit, are discussed. An Nth stage of the gate driving circuit, N being a natural number, can include a node controller configured to control voltages of a first node and a second node according to a set signal and a reset signal, a carry pulse output unit configured to receive a carry clock and output the carry clock as a carry pulse according to voltages of the first node and the second node, and a plurality of scan pulse output units configured to receive a plurality of scan clocks and output each of the scan clocks as a scan pulse according to voltages of the first node and the second node.

Abstract: A gate driving circuit that minimizes output characteristic deviation between a plurality of scan output buffer units, and a display device comprising the gate driving circuit, are discussed. An Nth stage of the gate driving circuit, N being a natural number, can include a node controller configured to control voltages of a first node and a second node according to a set signal and a reset signal, a carry pulse output unit configured to receive a carry clock and output the carry clock as a carry pulse according to voltages of the first node and the second node, and a plurality of scan pulse output units configured to receive a plurality of scan clocks and output each of the scan clocks as a scan pulse according to voltages of the first node and the second node.

Abstract: A cooling apparatus for a hot stamping die is configured such that a refrigerant in a two-phase coexisting state of a liquid phase and a gas phase is supplied to a cooling channel formed in the hot stamping die to cool the hot stamping die using latent heat of the refrigerant. The refrigerant maintains a constant temperature in the cooling channel of the hot stamping die, which ensures uniform cooling of the hot stamping die.

Abstract: A cooling apparatus for a hot stamping die is configured such that a refrigerant in a two-phase coexisting state of a liquid phase and a gas phase is supplied to a cooling channel formed in the hot stamping die to cool the hot stamping die using latent heat of the refrigerant. The refrigerant maintains a constant temperature in the cooling channel of the hot stamping die, which ensures uniform cooling of the hot stamping die.

Abstract: Disclosed herein is a method for manufacturing SiC powders with a high purity, and more particularly, a method for manufacturing SiC powders with a high purity by reating a solid phase carbon source as raw materials with gas phase silicon sources generated from a starting material composed of metallic silicon and silicon dioxide powders and, in which it is easy to control the size and crystalline phase of the SiC powders by changing the compositions of the gas phase silicon source to the solid phase carbon source mole ratio, and the temperature and time for the heat treatment.

Abstract: Disclosed herein is a method for manufacturing SiC powders with a high purity, and more particularly, a method for manufacturing SiC powders with a high purity by reating a solid phase carbon source as raw materials with gas phase silicon sources generated from a starting material composed of metallic silicon and silicon dioxide powders and, in which it is easy to control the size and crystalline phase of the SiC powders by changing the compositions of the gas phase silicon source to the solid phase carbon source mole ratio, and the temperature and time for the heat treatment.

Abstract: A method for searching a digital broadcasting channel in a digital broadcasting reception device for receiving digital broadcasting signals from local-area broadcasting stations that provide broadcasting services for specific areas. A location information code of each area and a list of digital broadcasting channels through which a service is possible in each area are mapped and stored. When a user requests a digital broadcasting channel search, a determination is made as to whether a location information code of an area where the digital broadcasting reception device is located matches one of location information codes stored on an area-by-area basis. When the matched location information code is present as a result of the determination, only broadcasting channels of the stored digital broadcasting channel list mapped to the matched location information code are searched, and the broadcasting channels through which broadcasting can be received are displayed.