Abstract: A high-flow and high-impact polyolefin resin composition comprises: about 5 to 96% by weight of an isotactic polypropylene-based resin; about 1 to 15% by weight of a low molecular weight atactic polypropylene resin having weight average molecular weight of about 10,000 to 100,000 g/mol; about 1 to 20% by weight of an ultra-high molecular weight atactic polypropylene resin having weight average molecular weight of about 1,000,000 to 2,500,000 g/mol; about 1 to 40% by weight of an inorganic filler; and about 1 to 20% by weight of a rubber.

Abstract: Disclosed is a rechargeable lithium battery that includes a positive electrode including a lithium nickel-based positive active material; a negative electrode including a negative active material; an electrolyte including a lithium salt and a non-aqueous organic solvent; and a separator including a polymer substrate and a hydroxide compound-containing coating layer disposed on the polymer substrate.

Abstract: An apparatus and method for monitoring a flow of liquid in a pipe are provided. The apparatus may include a temperature sensor attached to a pipe of a heat exchanger system to measure a temperature of the pipe, and a controller to determine whether a liquid is present in the pipe, based on a change in the measured temperature.

Abstract: Disclosed herein is a terrestrial broadcasting receiving module including: an antenna receiving a wireless signal; a distributing unit distributing and outputting the wireless signal into a wireless signal including a VHF band signal and a wireless signal including a UHF band signal; a VHF processing unit generating and outputting a VHF intermediate frequency signal from the wireless signal including the VHF band signal; a UHF processing unit generating and outputting a UHF intermediate frequency signal from the wireless signal including the UHF band signal; and a demodulating unit demodulating the VHF intermediate frequency signal output from the VHF processing unit and the UHF intermediate frequency signal output from the UHF processing unit. Therefore, a manufacturing cost may be reduced, switching loss may be prevented.

Abstract: An apparatus and method for monitoring a flow of liquid in a pipe are provided. The apparatus may include a temperature sensor attached to a pipe of a heat exchanger system to measure a temperature of the pipe, and a controller to determine whether a liquid is present in the pipe, based on a change in the measured temperature.

Abstract: Disclosed herein is a terrestrial broadcasting receiving module including: an antenna receiving a wireless signal; a distributing unit distributing and outputting the wireless signal into a wireless signal including a VHF band signal and a wireless signal including a UHF band signal; a VHF processing unit generating and outputting a VHF intermediate frequency signal from the wireless signal including the VHF band signal; a UHF processing unit generating and outputting a UHF intermediate frequency signal from the wireless signal including the UHF band signal; and a demodulating unit demodulating the VHF intermediate frequency signal output from the VHF processing unit and the UHF intermediate frequency signal output from the UHF processing unit. Therefore, a manufacturing cost may be reduced, switching loss may be prevented.

Abstract: Disclosed is a rechargeable lithium battery that includes a positive electrode including a lithium nickel-based positive active material; a negative electrode including a negative active material; an electrolyte including a lithium salt and a non-aqueous organic solvent; and a separator including a polymer substrate and a hydroxide compound-containing coating layer disposed on the polymer substrate.

Abstract: Disclosed herein is a decay heat removal system, including: a decay heat exchanger that absorbs decay heat generated by a nuclear reactor; a heat pipe heat exchanger that receives the decay heat from the decay heat exchanger through a sodium loop for heat removal and then discharges the decay heat to the outside; and a sodium-air heat exchanger that is connected to the heat pipe heat exchanger through the sodium loop and discharges the decay heat transferred thereto through the sodium loop to the outside. According to the decay heat removal system, a heat removal capability can be realized by the heat pipe heat exchanger at such a high temperature at which the safety of a nuclear reactor is under threat, and a cooling effect can be obtained through the sodium-air heat exchanger at a temperature lower than that temperature.

Abstract: Disclosed is a rechargeable lithium battery that includes a positive electrode including a lithium nickel-based positive active material; a negative electrode including a negative active material; an electrolyte including a lithium salt and a non-aqueous organic solvent; and a separator including a polymer substrate and a hydroxide compound-containing coating layer disposed on the polymer substrate.

Abstract: Disclosed is a rechargeable lithium battery that includes a positive electrode including a lithium nickel-based positive active material; a negative electrode including a negative active material; an electrolyte including a lithium salt and a non-aqueous organic solvent; and a separator including a polymer substrate and a hydroxide compound-containing coating layer disposed on the polymer substrate.

Abstract: Provided is a polypropylene resin composition for a cowl top cover of an automobile, which includes: an ethylene-propylene block copolymer containing 3 to 20 wt % of an ethylene monomer; an ethylene-propylene block copolymer containing 30 to 50 wt % of an ethylene monomer; an ethylene-?-olefin copolymer rubber; a magnesium compound; and an inorganic filler. The polypropylene resin composition has excellent rigidity, dimensional stability, and moldability, and thus is suitable for, e.g., a cowl top cover of an automobile.

Abstract: A System in Package (SIP) module includes a printed circuit board with at least one cavity formed therein. The module also includes at least one first device mounted in the cavity and a circuit pattern formed on an undersurface of the cavity and electrically connected to the first device. The module further includes at least one second device mounted on a printed circuit board surface corresponding to the undersurface of the cavity.

Abstract: Disclosed herein is a decay heat removal system, including: a decay heat exchanger that absorbs decay heat generated by a nuclear reactor; a heat pipe heat exchanger that receives the decay heat from the decay heat exchanger through a sodium loop for heat removal and then discharges the decay heat to the outside; and a sodium-air heat exchanger that is connected to the heat pipe heat exchanger through the sodium loop and discharges the decay heat transferred thereto through the sodium loop to the outside. According to the decay heat removal system, a heat removal capability can be realized by the heat pipe heat exchanger at such a high temperature at which the safety of a nuclear reactor is under threat, and a cooling effect can be obtained through the sodium-air heat exchanger at a temperature lower than that temperature.

Abstract: A System in Package (SIP) module. The module includes a printed circuit board with at least one cavity formed therein. The module also includes at least one first device mounted in the cavity and a circuit pattern formed on an undersurface of the cavity and electrically connected to the first device. The module further includes at least one second device mounted on a printed circuit board surface corresponding to the undersurface of the cavity.

Abstract: In a tunable antenna apparatus, a dielectric block is mounted on a printed circuit board. A radiation pattern has a feeding part formed on the dielectric block and connected commonly to a feeding source and a variable DC power. Also, a connecting pattern extends from the radiation pattern onto the printed circuit board. In addition, at least one tuning pattern is formed on the printed circuit board and connected in series to the connecting pattern via at least one switching device.

Abstract: The invention relates to an electronic module with a plurality of IC chips staked densely. The electronic module includes a substrate with an electrode formed thereon and at least one spacer disposed on the substrate. The electronic module also includes an IC chip disposed on the spacer and electrically connected to the substrate. The IC chip has a size larger than the spacer. The substrate and the IC chip forms a space therebetween. The invention miniaturizes and minimizes circuit connections and configurations between the IC chips and chip components to minimize electric resistance and inductance, thereby enhancing product capabilities. Also, the invention achieves miniaturization and integration of mobile products such as mobile phones to improve product competitiveness.

Abstract: The invention relates to a tunable antenna installed inside a mobile communication terminal to process multiple bands according to selection of reception frequency of a signal, and a control unit therefor. The tunable antenna includes an antenna for processing at least two different RF signals and an RF processor for receiving the RF signal from the antenna through a data signal line to convert the signal to a baseband signal. The tunable antenna further includes an antenna controller for providing a direct-current control signal for converting a band processed by the antenna through the data signal line, and an antenna tuner for receiving the direct-current control signal to convert the band processed by the antenna.

Abstract: A quick coupler for an excavator includes a cylinder tube fixed to each lower end of an excavator arm and a link, and having fixing bolt holes formed on one side thereof; a piston housing fitted into the cylinder tube to be fixed by fixing bolts inserted into the fixing bolt holes, and joined with a rod cover at both ends thereof, respectively; a pair of pistons inserted into each side of the piston housing with a spring interposed therebetween, each piston having a mechanical seal formed at its inner end; the pair of rod covers inserted between an outer circumference of the piston and an inner circumference of the piston housing on each side of the piston housing for preventing leakage of hydraulic fluid; and a pair of coupler pins inserted between an outer circumference of the piston housing and an inner circumference of the cylinder tube on each side of the cylinder tube, each coupler pin formed in a cap-shape.

Abstract: A quick coupler for an excavator comprises a cylinder tube fixed to each lower end of an excavator arm and a link, and having fixing bolt holes formed on one side thereof; a piston housing fitted into the cylinder tube to be fixed by fixing bolts inserted into the fixing bolt holes, and joined with a rod cover at both ends thereof, respectively; a pair of pistons inserted into each side of the piston housing with a spring interposed therebetween, each piston having a mechanical seal formed at its inner end; a pair of rod covers inserted between an outer circumference of the piston and an inner circumference of the piston housing on each side of the piston housing for preventing leakage of hydraulic fluid; and a pair of coupler pins inserted between an outer circumference of the piston housing and an inner circumference of the cylinder tube on each side of the cylinder tube, each coupler pin formed in a cap-shape.

Abstract: Fluid distributing apparatus for radial piston-type hydraulic pumps or motors is disclosed. In the apparatus, a valve casing is mounted to a housing of the pump or motor. A plate valve is seated in the central portion of the valve casing and selectively rotates while maintaining a dynamic balance. A fluid distributing plate and a pressure plate are arranged in the valve casing and are brought into close contact with top and bottom surfaces of the plate valve, thereby allowing the plate valve to selectively rotate under the state of dynamic balance. A retaining ring is interposed between the fluid distributing plate and the pressure plate and surrounds the plate valve, thereby removing dynamic friction from relatively-moving portions of the plate valve, pressure plate and fluid distributing plate.