Abstract: Provided is a wireless power transmitting unit capable of auto-tuning according to impedance change. The wireless power transmitting unit according to an embodiment can stabilize the operation of the amplifier by changing the resonance frequency of the resonator without measuring the phase information about the resonator.

Abstract: Provided is a wireless power transmitting unit capable of auto-tuning according to impedance change. The wireless power transmitting unit according to an embodiment can stabilize the operation of the amplifier by changing the resonance frequency of the resonator without measuring the phase information about the resonator.

Abstract: Provided are an apparatus and method for monitoring a wireless power transmitter. The apparatus for monitoring the wireless power transmitter includes a magnitude information detector included in a resonator of the wireless power transmitter and configured to detect magnitude information of voltages at opposite ends of an impedance device connected to the resonator, a phase difference detector configured to detect phase difference information of the voltages at the opposite ends of the impedance device, and a controller configured to monitor a state of the resonator on the basis of the magnitude information of the voltages at the opposite ends of the impedance device and the phase difference information, which are detected by the magnitude information detector and the phase difference detector.

Abstract: An oviduct specific expression promoter and a recombinant expression vector including the same. A promoter of an AGR2 gene is expressed specifically in the chicken oviduct, and a recombinant expression vector includes the promoter and a desired gene for encoding a desired protein. The oviduct specific promoter and the recombinant expression vector including the promoter can induce the expression of a protein specifically in the oviduct, i.e., an organ that secrets proteins so as to accumulate with a large amount in the egg. Accordingly, the oviduct specific promoter and the recombinant expression vector of the present invention can be advantageously used to produce transformed chickens, which can massively yield useful elements of high added value, produce functional eggs, and improve the economic traits of the poultry.

Abstract: An oviduct specific expression promoter and a recombinant expression vector including the same. A promoter of an AGR2 gene is expressed specifically in the chicken oviduct, and a recombinant expression vector includes the promoter and a desired gene for encoding a desired protein. The oviduct specific promoter and the recombinant expression vector including the promoter can induce the expression of a protein specifically in the oviduct, i.e., an organ that secrets proteins so as to accumulate with a large amount in the egg. Accordingly, the oviduct specific promoter and the recombinant expression vector of the present invention can be advantageously used to produce transformed chickens, which can massively yield useful elements of high added value, produce functional eggs, and improve the economic traits of the poultry.