Abstract: A cogeneration system is disclosed, wherein a generator which generates electricity, a drive source which operates to drive the generator, and generates waste heat during the operation of the drive source, a waste heat recoverer which recovers the waste heat of the drive source, and a radiator which radiates the waste heat recovered by the waste heat recoverer are arranged in a single chassis. The cogeneration system has a compact and simple arrangement, and achieves simple control operations, and an enhancement in operability.

Abstract: Method and test structures for determining heating effects in a test semiconductor device (10) are provided. The test device may include a first conductive metal structure (151-156) for accepting a flow of electric current that causes a heating effect. The test device may further include a second conductive metal structure proximate (121-126) the first conductive structure for obtaining resistivity changes in response to the heating effect. The resistivity changes are indicative of temperature changes due to the heating effect.

Abstract: Disclosed herein is a cooling/heating apparatus using waste heat from a fuel cell. The cooling/heating apparatus comprises a fuel cell, a hydrogen modifying unit, a cooling/heating unit, and refrigerant heating units. The cooling/heating unit includes at least one compressor, a four-way valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, to establish a heat pump type refrigerant cycle. The refrigerant heating units provide waste heat recovered from the fuel cell and the hydrogen modifying unit to a suction-side refrigerant line connected to the suction side of the compressor included in the cooling/heating unit to raise the temperature of a refrigerant. During a heating operation, the cooling/heating apparatus can achieve an enhancement in heating performance and an enhancement in system efficiency.

Abstract: A cooling/heating apparatus using a cogeneration system is disclosed.

Abstract: Provided are a color electrophoretic display and a method of manufacturing the same. The color electrophoretic display includes: a plurality of lower electrodes arranged on a lower layer and disposed with a predetermined interval therebetween; a plurality of first to third photoresist chambers arranged on the plurality of lower electrodes; first to third electronic inks accommodated in the plurality of first to third photoresist chambers respectively, and discriminatively operating to an electric field to independently display red, green, and blue colors; and a plurality of upper electrodes disposed with a predetermined interval therebetween and facing the plurality of lower electrodes with the plurality of first to third photoresist chambers being held therebetween.

Abstract: An exhaust structure for an engine is disclosed. The exhaust structure includes an exhaust line, through which the exhaust gas discharged from the engine passes. The exhaust line has a double pipe structure capable of preventing the condensed water formed in the exhaust line from entering the engine, so that it is possible to prevent engine failure, and thus, to achieve an enhancement in the durability and reliability of the engine.

Abstract: Method and test structures for determining heating effects in a test semiconductor device (10) are provided. The test device may include a first conductive metal structure (151-156) for accepting a flow of electric current that causes a heating effect. The test device may further include a second conductive metal structure proximate (121-126) the first conductive structure for obtaining resistivity changes in response to the heating effect. The resistivity changes are indicative of temperature changes due to the heating effect.

Abstract: A semiconductor test device includes a test circuit having contacts for applying an electrical signal and measuring electrical parameters of the test circuit. The semiconductor test device also includes an integrally formed heating circuit comprising at least one circuit meander positioned adjacent the test circuit for raising a temperature within a portion of the test circuit.

Abstract: A cogeneration system and a method for controlling the cogeneration system in which waste heat of an engine is mainly used to prevent an outdoor heat exchanger from being frosted, or is used not only to prevent the outdoor heat exchanger from being frosted, but also to enhance the heating performance of an indoor heat exchanger, in accordance with ambient temperature conditions, so that the cogeneration system can positively cope with ambient temperature conditions, and can exhibit a high energy efficiency.

Abstract: An electricity generating and air conditioning system including a first generator coupled to the output shaft of the engine to generate electricity, a turbo charger to be operated by exhaust gas discharged from the engine, and thus, to enhance the power of the engine, and a second generator coupled to the turbo charger to generate electricity, so that it is possible to achieve an enhancement in energy efficiency.

Abstract: An electricity generating and air conditioning system with a dehumidifier. The system includes an engine, a generator connected to an output shaft of the engine to generate electricity, a dehumidifying agent body to dehumidify indoor air, a regeneration heater to regenerate the dehumidifying agent body, and a waste heat recovering means to supply waste heat of the engine to the regeneration heater, and thus, to allow the regeneration heater to use the supplied waste heat as a heat source for the regeneration of the dehumidifying agent body, so that the system exhibits a maximal efficiency.

Abstract: A cogeneration system including an engine, a generator connected to an output shaft of the engine to generate electricity, and a waste heat recoverer to recover waste heat of the generator and to transfer the recovered waste heat to a heat consumer. Since waste heat of the generator is supplied to the heat consumer, the cogeneration system exhibits a high energy efficiency while achieving release of heat from the generator.

Abstract: An electricity generating and air conditioning system with a dehumidifier. The system includes an engine, a generator connected to an output shaft of the engine to generate electricity, a heat pump type air conditioner, through which a refrigerant is circulated, the heat pump type air conditioner comprising a compressor, a directional valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, an indoor dehumidifying agent body to dehumidify indoor air, an indoor regeneration heater to regenerate the indoor dehumidifying agent body, and a waste heat recovering means to supply waste heat of the engine to the indoor regeneration heater, and thus, to allow the indoor regeneration heater to use the supplied waste heat as a heat source for the regeneration of the indoor dehumidifying agent body, or to supply the waste heat of the engine to the refrigerant of the heat pump type air conditioner, so that the system exhibits maximal efficiency.

Abstract: A cogeneration system including an engine, which drives a generator to generate electricity, a cooling/heating unit using a heat pump type refrigerant cycle, in which a refrigerant is circulated through at least one compressor, a four-way valve, a first outdoor heat exchanger, a first expansion device, and an indoor heat exchanger, in this order, during a cooling operation of the cogeneration system, and a waste heat consuming heating unit using a refrigerant cycle, in which the refrigerant is circulated through the compressor, the four-way valve, the indoor heat exchanger, a second expansion device, and a second outdoor heat exchanger to be heated by waste heat of the engine, in this order, during a heating operation of the cogeneration system. In accordance with the cogeneration system, it is possible to maximize utilization of engine waste heat during the heating operation and to achieve an enhancement in heating performance.

Abstract: An electricity generating and air conditioning system including an engine, a generator connected to an output shaft of the engine to generate electricity, an air conditioner, which uses the electricity generated from the generator and includes a compressor, an indoor heat exchanger, an outdoor heat exchanger, and an expansion device, and an exhaust gas waste heat recovering device to recover heat of exhaust gas discharged from the engine and to transfer the recovered heat to a refrigerant passing through a discharge line of the compressor. The electricity generating and air conditioning system has an advantage in that an enhancement in heating performance is achieved.

Abstract: An electricity generating and air conditioning system with a water heater. The system includes an engine, a generator connected to an output shaft of the engine to generate electricity, a heat pump type air conditioner, which uses the electricity generated from the generator, and comprises a compressor, a directional valve, an outdoor heat exchanger, an expansion device, and an indoor heat exchanger, a water-heating heat exchanger to heat water, and a waste heat recovering means to supply waste heat of the engine to the heat pump type air conditioner or to the water-heating heat exchanger, so that the system exhibits a high energy efficiency.

Abstract: Disclosed herein is a method of controlling a linear expansion valve of a cooling cycle apparatus. The method comprises a first step of calculating a target opening level value according to suction overheat level of compressors to control a linear expansion valve based on the calculated target opening level value, and a second step of calculating a new target opening level value according to the suction overheat level of the compressors and discharge temperature of the compressors to control the linear expansion valve based on the calculated new target opening level value. Consequently, the discharge temperature of the compressors is prevented from being excessively increased, and therefore, the compressors are prevented from being overheated and damaged, and reliability of the cooling cycle apparatus is improved.

Abstract: Provided are an apparatus and method using large-area organic vapor phase deposition for formation of organic thin films and organic devices. The apparatus includes a deposition part and a source part. The deposition part includes a process chamber; a substrate holder installed in the process chamber for supporting a loaded substrate; a substrate temperature controller installed in the substrate holder for controlling the temperature of the substrate; and a shower head installed opposite the substrate holder in the process chamber for uniformly distributing onto the substrate organic source vapors to be used for a deposition reaction.

Abstract: In a method of manufacturing a nonvolatile semiconductor memory device, a preliminary floating gate is formed on a substrate having an active region and an inactive region that extend in a first direction. A dielectric layer and a control gate layer are formed on the substrate. A control gate, a dielectric layer, and a remaining pattern structure are formed by etching the control gate layer and the dielectric layer in a second direction until the preliminary floating gate is partially exposed. The floating gate is formed by etching the preliminary floating gate and the remaining pattern structure until the silicon substrate is exposed. The remaining pattern structure may prevent the isolation layer defining the inactive region from being damaged, thereby suppressing a leakage current in the nonvolatile semiconductor memory device.

Abstract: Disclosed is a device for metallizing uranium oxide and recovering uranium, which reacts uranium oxide with a lithium metal to product uranium metal powder, and filters the resulting product using a porous filter to separate the uranium metal powder from lithium chloride molten liquid to recover the uranium metal powder. The device includes a heating furnace including at least one first heating unit, and a reactor includes a reaction vessel having a discharging valve hole located at the center of a bottom thereof and a conical bottom tapered to the discharging valve hole, a sealing lid for sealing the reaction vessel airtight, an argon gas inlet port for feeding argon gas into the reactor therethrough, and an argon gas outlet port for venting argon gas from the reactor therethrough. A valve assembly controls the discharging valve hole of the reaction vessel, and a plurality of agitators mix a mixture in the reactor.