摘要:
The embodiment relates to a Doherty amplifier, wherein in order to perform impedance matching. The embodiment comprises an impedance converter and a connector. The impedance converter includes a plurality of lines having different lengths and disposes between an output end of a carrier amplifier and an output end of a peaking amplifier. The connector connects a line selected from the plurality of lines having different lengths of the impedance converter to the output end of the carrier amplifier and to the output end of the peaking amplifier.
摘要:
The present invention relates to a cool air supply structure of a storage receptacle for a refrigerator. The present invention comprises one or more box casings detachably installed in a refrigerating chamber, each box casing having a mounting space and a channel through which cool air flows, the cool air being supplied from a cool air supply source through a cool air supply port formed in a side surface of the refrigerating chamber; and one or more storage receptacles, each storage receptacle being withdrawably installed in the mounting space, wherein food accommodated in an accommodation space provided in the storage receptacle is indirectly cooled by the cool air that flows through the channel. According to the present invention, there is an advantageous effect in that the food accommodated in a plurality of storage receptacles can be stored to be fresher by indirectly cooling the food and simultaneously the supply of cool air can be controlled depending on the use or not of the storage receptacles.
摘要:
Methods of fabricating a semiconductor device is provided. The methods include forming an interlayer insulating layer on a semiconductor substrate having a first region and a second region. First contact plugs may be formed on a portion of the second region to fill a plurality of first contact holes. A plurality of first contact mask layers and a plurality of first dummy mask layers may be formed on the interlayer insulating layer. The first contact mask layers may be formed in the first region. The first dummy mask layers may be formed in the second region. A plurality of second contact mask layers may be formed between two adjacent first contact mask layers. A plurality of second dummy mask layers may be formed between two adjacent first dummy mask layers. The interlayer insulating layer may be etched using the first contact mask layers and the second contact mask layers as etch stop layers to form a plurality of second contact holes through the interlayer insulating layer formed in the first region.
摘要:
The present invention relates to a cool air supply structure of a storage receptacle for a refrigerator. The present invention comprises one or more box casings detachably installed in a refrigerating chamber, each box casing having a mounting space and a channel through which cool air flows, the cool air being supplied from a cool air supply source through a cool air supply port formed in a side surface of the refrigerating chamber; and one or more storage receptacles, each storage receptacle being withdrawably installed in the mounting space, wherein food accommodated in an accommodation space provided in the storage receptacle is indirectly cooled by the cool air that flows through the channel. According to the present invention, there is an advantageous effect in that the food accommodated in a plurality of storage receptacles can be stored to be fresher by indirectly cooling the food and simultaneously the supply of cool air can be controlled depending on the use or not of the storage receptacles.
摘要:
The handover method includes the steps of the base stations of the synchronous mobile communication network transmitting dummy pilot signals for the asynchronous mobile communication network, the mobile communication terminal, for which call connection with the asynchronous mobile communication network is performed through the asynchronous wireless device, determining whether the dummy pilot signals for the asynchronous mobile communication network have been received through the asynchronous wireless device; the mobile communication terminal requesting handover from the asynchronous mobile communication network if it is determined that the dummy pilot signals for the asynchronous mobile communication network have been received; and the asynchronous mobile communication network determining that handover is possible, notifying the mobile communication terminal of the determination that handover is possible, and the asynchronous mobile communication network requesting handover to the synchronous mobile communication network, thus performing handover.
摘要:
Example embodiments are directed to a method of planarizing a semiconductor device. A first CMP process may be performed on an insulating layer to remove a stepped structure of the insulating layer. A second CMP process may be performed to planarize the insulating layer with the stepped structure removed until a given pattern is exposed. A process temperature of the first CMP process may be higher than that of the second CMP process. Accordingly, an initial stepped structure may be more readily removed in a planarization process of a surface of the semiconductor device, which may reduce the CMP process time and may increase the degree of planarization.
摘要:
A refrigerator includes a fresh food compartment, a freezer compartment defined by inner walls and an outer case respectively, an insulation barrier separating the compartments, and doors for providing access to the compartments. A passageway is formed in the barrier for providing refrigerated air to the fresh food compartment. A connecting duct diverges from the passageway and extends forwardly towards the front portion of the fresh food compartment. A door duct communicating with the connecting duct when the door is closed is coupled to the door. As a result, the fresh food compartment and door-adjacent portions of the fresh food compartment are promptly and uniformly cooled.
摘要:
A program execution and operation right management system capable of providing flexible and sufficient protection uniformly even for the thread operation instructions among the threads sharing the same virtual address space and/or for individual memory region. In the system, operation right data indicating which thread can be operated by which thread among a plurality of threads are stored, and whether a thread operation with respect to one thread requested by another thread among a plurality of threads is allowed by the operation right data is judged. Then, the processor is allowed to carry out said thread operation with respect to that one thread by that another thread only when it is judged that said thread operation is allowed by the operation right data.
摘要:
An LED lighting flood lamp having a double heat dissipation plate structure using nano spreaders are provided, in which the double heat dissipation plate structure is formed by installing the nano spreaders having high heat diffusion inside the lamp and forming heat dissipation plates on upper and lower parts of the nano spreaders, and heat dissipation pins are arranged in zigzag on the upper part of the upper heat dissipation plate, so that the heat dissipation efficiency is maximized, and the lamp has a slim external appearance without being limited in installation space. The LED lighting flood lamp includes LEDs, an LED mounting substrate on which the LEDs are mounted, nano spreaders mounted on an upper side of the LED mounting substrate, an upper heat dissipation plate fixed to an upper side of the nano spreaders and having a plurality of heat dissipation pins formed on an upper surface thereof, a lower heat dissipation plate fixed to a lower part of the LED mounting substrate, and a diffusion lens plate fixed to a lower part of the lower heat dissipation plate.
摘要:
A heat dissipation member having variable heat dissipation paths and an LED lighting flood lamp using the same are provided, which can maximize heat dissipation effect by widening an air contact area and making air flow rapidly, seek a waterproof effect and prevention of a scald due to contact with a high-temperature heat dissipation plate, and prevent the reduction of heat dissipation efficiency caused by foreign substances by keeping wings of the heat dissipation plate not exposed to an outside. The LED lighting flood lamp using a heat dissipation member having variable heat dissipation paths includes LEDs, an LED mounting substrate on which the LEDs are mounted, a heat dissipation member having a lower part to which the LED mounting substrate is fixed and provided with the variable heat dissipation paths formed thereon, an upper cap fixed to outer surfaces of heat dissipation plates of the heat dissipation member; a fixing ring member fixed to the lower part of the heat dissipation member to achieve inflow of outside air, and a lower lens fixed to a lower part of the cap.