Abstract: A motor-driving apparatus for driving a motor having a plurality of windings respectively corresponding to a plurality of phases is provided. The motor-driving apparatus includes a first inverter having a plurality of first switching devices and connected to first ends of the plurality of windings and a second inverter having a plurality of second switching devices and connected to second ends of the plurality of windings. A third switching device is configured to selectively connect and disconnect points at which a number of turns of each of the windings is divided in a preset ratio. A controller is configured to adjust an on/off state of the first to third switching devices based on required output of the motor.

Abstract: An air purification module comprises a housing having an interior space provided with an air inlet and an air outlet, and an axial type blowing fan, mounted in the housing, for moving air from the air inlet to the air outlet. The air purification module further includes an air purifying unit, provided on a flow path of the air, for purifying the air and a guide for reducing the flow rate of the air between the blowing fan and the air purifying unit. The air purifying unit includes a filter provided between the blowing fan and the air outlet and a light source unit for providing light to the filter.

Abstract: An air purification module for purifying air includes a photocatalyst filter and a light source unit sequentially arranged in a selected direction. The light source unit is spaced apart from the photocatalyst filter to provide light to the photocatalyst filter and includes a substrate and a light source disposed on the substrate. The substrate includes at least one aperture to control a flow channel and a flow velocity of air so as to improve air purification effects through the photocatalyst filter when the air flows from the substrate towards the photocatalyst filter.

Abstract: A motor drive device includes: a first inverter including a plurality of first switching elements and connected to a plurality of coils; a second inverter including a plurality of second switching elements and connected to the plurality of coils; a plurality of transfer switching elements connected to the second ends; a capacitor disposed at one side of a casing of a motor; first and second cooling channels disposed at both sides of the capacitor; a plurality of first power modules including some of the plurality of first switching elements and some of the transfer switching elements; and a plurality of second power modules including some of the plurality of second switching elements.

Abstract: The present invention relates to a wireless mouse system. Particularly, the present invention relates to a wireless mouse system in which includes a controller, which controls a receiver and a flash memory device integrated into an interfacing device, can be performed function of the receiver and the flash memory device smoothly. A wireless mouse system comprises a wireless mouse and an interfacing device with a USB terminal, electrically communicated with a USB port of a information-displaying device. The interfacing device comprises a receiver receiving a signal data transferred wirelessly from the wireless mouse, and transferring the signal data to the information-displaying device, a flash memory device exchanging data with the information-displaying device through the USB terminal and a controller controlling the receiver and the flash memory device, and transferring optionally the signal of the receiver and the flash memory device to the information-displaying device.

Abstract: The present invention relates to a wireless mouse system. Particularly, the present invention relates to a wireless mouse system in which includes a controller, which controls a receiver and a flash memory device integrated into an interfacing device, can be performed function of the receiver and the flash memory device smoothly. A wireless mouse system comprises a wireless mouse and an interfacing device with a USB terminal, electrically communicated with a USB port of a information-displaying device. The interfacing device comprises a receiver receiving a signal data transferred wirelessly from the wireless mouse, and transferring the signal data to the information-displaying device, a flash memory device exchanging data with the information-displaying device through the USB terminal and a controller controlling the receiver and the flash memory device, and transferring optionally the signal of the receiver and the flash memory device to the information-displaying device.

Abstract: The present invention provides novel microorganisms, Brevibacterium lactofermentum CJJA21 (Accession No. KCCM-10222), which is resistant to sodium azide, and Brevibacterium lactofermentum CJJA22 (Accession No. KCCM-10223), which is resistant to ?-aminobutyric acid. These microorganisms are capable of producing L-glutamine in a higher yield than the known strains. The present invention further provides processes for producing L-glutamine using the microorganisms of the invention.

Abstract: The present invention provides novel microorganisms, Brevibacterium lactofermentum CJJA21 (Accession No. KCCM-10222), which is resistant to sodium azide, and Brevibacterium lactofermentum CJJA22 (Accession No. KCCM-10223), which is resistant to ?-aminobutyric acid. These microorganisms are capable of producing L-glutamine in a higher yield than the known strains. The present invention further provides processes for producing L-glutamine using the microorganisms of the invention.

Abstract: The present invention provides novel microorganisms, Brevibacterium lactofermentum CJJA21 (Accession No. KCCM-10222), which is resistant to sodium azide, and Brevibacterium lactofermentum CJJA22 (Accession No. KCCM-10223), which is resistant to ?-aminobutyric acid. These microorganisms are capable of producing L-glutamine in a higher yield than the known strains. The present invention further provides processes for producing L-glutamine using the microorganisms of the invention.

Abstract: The present invention provides novel microorganisms, Brevibacterium lactofermentum CJJA21 (Accession No. KCCM-10222), which is resistant to sodium azide, and Brevibacterium lactofermentum CJJA22 (Accession No. KCCM-10223), which is resistant to &agr;-aminobutyric acid. These microorganisms are capable of producing L-glutamine in a higher yield than the known strains. The present invention further provides processes for producing L-glutamine using the microorganisms of the invention.