Abstract: Provided is a combustion controller for a combustible gas of a pressurized water reactor nuclear power plant, and more particularly, to a combustion controller for a combustible gas installed in a rear end of a filtered vent system outside a containment vessel or an external chimney, configured to convert a combustible gas such as hydrogen, carbon monoxide, or the like, into steam, carbon dioxide, or the like, and simultaneously, operate by itself with no external power supply. Accordingly, the combustion controller for a combustible gas can perform stable combustion control with no probability of explosion of hydrogen through a recombining reaction of the combustible gas, prevent discharge of carbon monoxide, which is a toxic gas, and prevent backward flow of the flame through the quenching mesh.

Abstract: A nuclear power plant includes a nuclear reactor containment structure housing a nuclear reactor, a pressure vessel containing condensed water therein and having a receiving space located lower than a bottom of the containment structure, a release pipe connecting the containment structure to the pressure vessel such that water vapor and fission products generated in the containment structure in the event of an accident is capable of flowing into the pressure vessel, and a recovery pipe connecting the pressure vessel to the containment structure such that the condensed water received in the pressure vessel is capable of flowing into the containment structure. When a level of the condensed water received in the pressure vessel is higher than a water level in the containment structure, the condensed water flows from the pressure vessel toward the containment structure by a water head difference.

Abstract: A variable compression ratio apparatus of an exhaust gas brake in an engine, may include a piston reciprocally moving in a cylinder of the engine, and an exhaust control valve that selectively communicates a combustion chamber of the cylinder with an exhaust manifold in accordance with pressure generated by the piston in the cylinder to control operating pressure of the piston.

Abstract: A method of determining optimal parameters for measuring biological signals of a real body by using a virtual body model modeling a virtual body simulating the real body includes generating a plurality of virtual biological signals of the virtual body using the virtual body model by changing parameters that determine characteristics of the virtual biological signals; selecting at least one of the virtual biological signals based on a characteristic of one of the biological signals of the real body; and outputting at least one parameter used to generate the selected at least one virtual biological signal as at least one optimal parameter for measuring the one biological signal of the real body.

Abstract: Disclosed is an electromagnetic wave shielding heat-radiation sheet allowing electricity and heat to be transferred from one side surface to the other side surface of the sheet, in which conductive protrusions formed by partially cutting a conductive layer laminated on an elastic support layer are bent toward the rear surface of the elastic support layer to pass through the elastic support layer and come in contact with the rear surface of the elastic support layer.

Abstract: A data forwarding method and system is provided for avoiding data loss during a vertical handover by forwarding data through an IP tunnel established between a newly introduced network entity called a Data Forwarding Function of the serving network and a Forward Attachment Function of a target network. A data forwarding method of a data forwarding unit located in a serving network for a vertical handover according to the present invention includes receiving an address of a forwarding attachment unit located in a target network and a data forwarding preparation request that are transmitted by a user equipment; establishing an Internet Protocol (IP) tunnel to the forwarding attachment unit according to the data forwarding preparation request; and forwarding, when a vertical handover is initiated, handover packets to the forwarding attachment unit through the IP tunnel.

Abstract: A variable compression ratio apparatus of an exhaust gas brake in an engine, may include a piston reciprocally moving in a cylinder of the engine, and an exhaust control valve that selectively communicates a combustion chamber of the cylinder with an exhaust manifold in accordance with pressure generated by the piston in the cylinder to control operating pressure of the piston.

Abstract: An apparatus for passively cooling and retaining molten core material discharged from a damaged reactor vessel during a severe accident in the nuclear plant including: a molten core material retention tank to retain molten core material; a compressed gas tank storing high-pressure inert gas; a cooling water storage tank being installed higher than the molten core material retention tank; and a mixing means. The molten core material retention tank includes an outer retention vessel having at least one coolant hole, a porous protection vessel formed at an inside of the outer retention vessel, and a gravel layer formed between the outer retention vessel and the porous protection vessel. The apparatus can be installed in a reactor cavity without changing the compartment structure of a containment building, and makes it possible to prevent a steam explosion during the cooling process for the ultrahigh-temperature molten core material and to secure the reliability of the cooling process.

Abstract: Disclosed is an electromagnetic wave shielding heat-radiation sheet allowing electricity and heat to be transferred from one side surface to the other side surface of the sheet, in which conductive protrusions formed by partially cutting a conductive layer laminated on an elastic support layer are bent toward the rear surface of the elastic support layer to pass through the elastic support layer and come in contact with the rear surface of the elastic support layer.

Abstract: Disclosed is a laminate sheet including a polymer resin layer; and at least one metal foil layer laminated on one surface or both surfaces of the polymer resin layer, which is applied to shield electromagnetic waves, and/or to ground static electricity.

Abstract: An apparatus for passively cooling and retaining molten core material discharged from a damaged reactor vessel during a severe accident in the nuclear plant including: a molten core material retention tank to retain molten core material; a compressed gas tank storing high-pressure inert gas; a cooling water storage tank being installed higher than the molten core material retention tank; and a mixing means. The molten core material retention tank includes an outer retention vessel having at least one coolant hole, a porous protection vessel formed at an inside of the outer retention vessel, and a gravel layer formed between the outer retention vessel and the porous protection vessel. The apparatus can be installed in a reactor cavity without changing the compartment structure of a containment building, and makes it possible to prevent a steam explosion during the cooling process for the ultrahigh-temperature molten core material and to secure the reliability of the cooling process.

Abstract: Provided are a telematics transport gateway and an operating method thereof. The telematics transport gateway, includes: a message transporting/receiving unit for receiving service request messages, transmitting the service request messages to a service providing server, receiving a service response message and transporting the service response message to the telematics terminal; a message processing unit for analyzing whether a format of the service request messages is Short Message Service (SMS), Transmission Control Protocol (TCP), or Hypertext Transfer Protocol (HTTP); a controlling unit for extracting user information from the service request message, transmitting the user information to an authentication managing unit and a charging unit, and maintaining a session with the telematics terminal; the authentication managing unit for performing authentication and transporting an authentication result to the controlling unit; and the charging unit for charging for the service.

Abstract: Disclosed is an apparatus and method for automatic vehicle management using a wire/wireless communication network, the automatic vehicle management apparatus including: a vehicle data transmitter installed at an appropriate position on the inner or outer side of a motor vehicle for sending various data about the vehicle that is running; and a vehicle information control server for analyzing the vehicle data received from the vehicle data transmitter via the wire/wireless communication network to acquire information necessary for management of the vehicle, and providing the vehicle management information to a subscriber terminal in real time so as to perform vehicle management based on the information.

Abstract: Methods of fabricating a liquid crystal display element on a substrate includes forming a thin film transistor on the substrate, the thin film transistor including a gate electrode covered by a channel region and a gate pad conductively connected to the gate electrode. A pad electrode is formed on the substrate, spaced apart from the gate pad. A portion of the gate pad and a portion of the pad electrode are exposed, and the exposed portion of the gate pad selectively plated to thereby form a conductive barrier layer on the exposed portion of the gate pad. A pixel electrode is then formed contacting the conductive barrier layer and the exposed portion of the pad electrode to thereby connect the gate pad and the pad electrode. Preferably, the selective plating includes electroless plating the exposed portion of the gate pad to thereby form the conductive barrier layer.

Abstract: An apparatus for measuring loss of sound traveled in a muffler of an automobile comprises: a first and second pipe between which the muffler, to be tested, is inserted; a sound source connected to one end of the first pipe opposite to the muffler to create a sound into the first and second pipes; the first microphones mounted at the first pipe to measure the level of sound before the muffler; the second microphones mounted at the second pipe to measure the level of sound after the muffler; and a non-reflect means connected to the second pipe for the sound passing through the first and second pipes so as not to reflect into them.

Abstract: The effect of a TFT having a Ge--Si contact layer is that a stable etching of the contact layer, without excessive etching of the semiconductor layer can be made due to a good selectivity when etching. Consequently, a uniform channel after a backetch step is obtained and the device performance can be improved.