Abstract: An outdoor unit for an air conditioner is disclosed. The outdoor unit according to the present invention comprises a housing which has an air inlet and an air outlet, a ventilation fan rotatably mounted in the housing, and a fan guard connected to the housing to cover the air outlet. Here, the fan guard comprises a plurality of closed ribs arranged sequentially and concentrically between a center and an outline thereof, and a plurality of radial ribs arranged in radial directions to interconnect the plurality of closed ribs, in such a manner that some of the closed ribs, which are disposed at intermediate positions near tips of the ventilation fan, are at a further distance from the ventilation fan than the other closed ribs, which are disposed near the center and the outline.

Abstract: The present invention relates to a preparation method of protein extracts from rice bran which is comprising a process of pre-treating rice bran; producing de-fatted rice bran by removing fat from the pellet; a process of extracting protein from the de-fatted rice bran, generating protein solution; and a process of precipitating protein from the protein solution to obtain final protein extracts from rice bran. The method of the present invention makes it possible to obtain lipid from rice bran, which has been wasted and used only as feed or compost due to fast rancidity and low stability, and to ultimately develop proteineous materials of high quality, non-GMO and no-allergy by extracting protein from the rice bran. In addition, the present invention provides a method of recycling rice bran, which is wasted as a by-product, by adding values to the rice bran.

Abstract: An apparatus continuously treats the surface of waste rubber powder by means of microwave thereby making it possible to treat the surface of waste rubber powder continuously and more efficiently. As a result, recycled rubber material has superior surface roughness and processability and the physical or chemical properties of the rubber articles are improved.

Abstract: Disclosed is a multilayer printed circuit board. The multilayer printed circuit board includes a power source surface to provide power to each component disposed on the power source surface, a ground surface having a reference voltage, a strip line which passes through the power source surface and/or the ground surface so as to transmit signals between components, an antenna installed in proximity to a sectional region of the power source surface and the ground surface, and an electromagnetic wave reduction member which is provided between the power source surface and the ground surface to effectively reduce an electromagnetic wave generated from the strip line.

Abstract: Storing parity information in an external storage with multiple disk drives by determining the number of the storage blocks used as data blocks and the number of the storage blocks used as parity blocks; forming a three-dimensional block matrix of virtual data blocks corresponding to the determined number of the storage blocks; allocating virtual parity blocks to the virtual data block planes; allocating the virtual data blocks and the virtual parity blocks to the storage blocks; calculating parity information based upon data bits respectively stored in the storage blocks corresponding to the virtual data blocks of every virtual data block plane; and storing the calculated parity information in the storage blocks corresponding to the virtual parity blocks. The stored parity information allows any number of error blocks to be recovered, and more particularly allow three or more error blocks per one parity group to be recovered.

Abstract: A turbo fan including backward-inclined blades that are inclined in a direction opposite to a rotating direction of a rotating plate. A positive pressure surface of each blade, facing the rotating direction of the rotating plate, takes the form of a flat surface, and a negative pressure surface of the blade, opposite to the rotating direction of the rotating plate, takes the form of a convexly-curved surface. A radius of curvature defined by the convexly-curved negative pressure surface is within a range of 2.5˜4 times of a radius of the turbo fan. The turbo fan can reduce noise and consumption of power together, and consequently, an air conditioner having the turbo fan can achieve an improvement in performance.

Abstract: The present invention relates to a structure of an antenna and its shielding structure for a mobile phone which may significantly reduce the hazardous electromagnetic wave transmitted to the user's body. The present invention arranges a monopole antenna inside of the mobile phone housing, and installs an electromagnetic wave absorber between the antenna and the circuit board. The electromagnetic wave absorber can absorb the electromagnetic wave reflected form conductive plate constituting the circuit board. Thus, the adverse effect of the reflected electromagnetic wave to the performance of antenna is prevented and the amount of the electromagnetic wave to which the users is exposed can be significantly reduced as well.

Abstract: Semiconductor devices are tested under actual operating conditions by interfacing the devices to an actual board-type product, for example, through a test board tat includes a mounting unit such as a socket or pattern of conductive lands that allows the devices being tested to be mounted to and removed from the test board with minimal effort and signal degradation. An interface circuit on the test board compensates for environmental differences between the board-type product and the mounting unit. For example, the interface circuit can include a clock distribution circuit, which utilizes a phase locked loop, and a register circuit to compensate for electrical loading caused by the device mounting unit, and to provide the proper timing margins between clock signals and control signals applied to the semiconductor devices. A power control circuit can be used to manipulate the supply voltage thereby providing a voltage margin screening function.

Abstract: A method and apparatus for testing semiconductor devices allows devices to be tested under actual operating conditions by interfacing the devices to an actual board-type product. The semiconductor devices are interfaced to the board-type product with a test board that includes a mounting unit such as a socket or pattern of conductive lands that allows the devices being tested can be easily mounted to and removed from the test board with minimal effort and signal degradation. An interface circuit on the test board compensates for environmental differences between the board-type product and the mounting unit. For example, the interface circuit can include a clock distribution circuit, which utilizes a phase locked loop, and a register circuit to compensate for electrical loading caused by the device mounting unit, and to provide the proper timing margins between clock signals and control signals applied to the semiconductor devices.

Abstract: Embodiments of the invention allow semiconductor devices to be tested under actual operating conditions by interfacing the devices to an actual board-type product. The devices are interfaced to the board-type product with a test board that includes a mounting unit such as a socket or pattern of conductive lands that allows the devices to be easily mounted to and removed from the test board with minimal effort and signal degradation. An interface circuit on the test board compensates for environmental differences between the board-type product and the mounting unit. A power control circuit can be used to manipulate the supply voltage applied to the semiconductor devices, thereby providing a voltage margin screening function.

Abstract: A method and apparatus for testing memory devices under actual operating conditions can accommodate non-standard memory devices through the use of an interface board that adapts a non-standard pin configuration to a standard pin configuration on a test substrate. The interface board can include a first surface on which to mount the non-standard device, a pin matching circuit, and a second surface constructed and arranged to couple the pin matching circuit to a standard pin configuration. The interface board can be mounted directly on the test substrate, or coupled to the test substrate through various arrangements of sockets, connection boards, and supports.

Abstract: Storing parity information in an external storage with multiple disk drives by determining the number of the storage blocks used as data blocks and the number of the storage blocks used as parity blocks; forming a three-dimensional block matrix of virtual data blocks corresponding to the determined number of the storage blocks; allocating virtual parity blocks to the virtual data block planes; allocating the virtual data blocks and the virtual parity blocks to the storage blocks; calculating parity information based upon data bits respectively stored in the storage blocks corresponding to the virtual data blocks of every virtual data block plane; and storing the calculated parity information in the storage blocks corresponding to the virtual parity blocks. The stored parity information allows any number of error blocks to be recovered, and more particularly allow three or more error blocks per one parity group to be recovered.

Abstract: The present invention relates to a structure of an antenna and its shielding structure for a mobile phone which may significantly reduce the hazardous electromagnetic wave transmitted to the user's body. The present invention arranges a monopole antenna inside of the mobile phone housing, and installs an electromagnetic wave absorber between the antenna and the circuit board. The electromagnetic wave absorber can absorb the electromagnetic wave reflected form conductive plate constituting the circuit board. Thus, the adverse effect of the reflected electromagnetic wave to the performance of antenna is prevented and the amount of the electromagnetic wave to which the users is exposed can be significantly reduced as well.

Abstract: A method and apparatus for testing memory devices under actual operating conditions can accommodate non-standard memory devices through the use of an interface board that adapts a non-standard pin configuration to a standard pin configuration on a test substrate. The interface board can include a first surface on which to mount the non-standard device, a pin matching circuit, and a second surface constructed and arranged to couple the pin matching circuit to a standard pin configuration. The interface board can be mounted directly on the test substrate, or coupled to the test substrate through various arrangements of sockets, connection boards, and supports.

Abstract: A method and apparatus for testing semiconductor devices allows devices to be tested under actual operating conditions by interfacing the devices to an actual board-type product. The semiconductor devices are interfaced to the board-type product with a test board that includes a mounting unit such as a socket or pattern of conductive lands that allows the devices being tested can be easily mounted to and removed from the test board with minimal effort and signal degradation. An interface circuit on the test board compensates for environmental differences between the board-type product and the mounting unit. For example, the interface circuit can include a clock distribution circuit, which utilizes a phase locked loop, and a register circuit to compensate for electrical loading caused by the device mounting unit, and to provide the proper timing margins between clock signals and control signals applied to the semiconductor devices.