Agency for Defense Development

Wonik Ips Co., Ltd.

Jeong Min Lee

Byung Hwa Lee

Seung Han Lee

Myeong Jun Choi

Jin Pil Heo

Tae Ho Jeon

Byoung Guk Son

Won Kyo Han

Grace Choi

Mi Jin Yim

Sang Jip Nam

Young Jun Park

Su Jin Kim

The present invention provides asp. SNC087 strain (KCCM12505P) that is isolated from seawater and produces staurosporine, a method for producing staurosporine using the same, a method for culturing the same, and a pure culture medium of the same.

sp. SNC087 strain isolated from seawater, method for producing staurosporine using same, method of culturing same, and pure culture medium of same

Provided are a substrate processing apparatus and a substrate processing method using the same and, more particularly, a substrate processing apparatus capable of controlling deposition of a reactive-metal-containing precursor in an exhaust line, and a substrate processing method using the same.

Substrate processing apparatus and substrate processing method using the same

The present disclosure relates to an active sonar system including a transmitter; a transducer; and an impedance matching circuit, and a method of estimating an equivalent model parameter of a multi-mode transducer, wherein an electrical equivalent model parameter having a plurality of stages corresponding to each mode is estimated by estimating an individual mode impedance and a total mode impedance from multi-mode impedance data and obtaining an interference amount of adjacent modes, and an equivalent model modeled thereby for which an interference effect by a multi-mode is taken into consideration is used for the design of an impedance matching circuit to minimize actual model fabrication and effectively derive detailed design elements and the like, thereby allowing an integrated circuit design with peripheral electronic units for interfacing the sonar system.

Method for an equivalent circuit parameter estimation of a transducer and a sonar system using thereof

This specification relates to an active SONAR system comprising a transmitter, a transducer and an impedance matching circuit for expanding bandwidth and increasing a power factor value in sound and ultrasonic wave bands by mutually matching resonant frequencies of the transducer and the impedance matching circuit or a resonant frequency between the transducer and the impedance matching circuit using an electrical equivalent model corresponding to actual impedance data of the transducer and controlling the positions and the intervals of the frequencies at which reactance components of the transducer including the impedance matching circuit become zero, and an impedance matching method thereof. This allows for efficient driving in a broadband between the transmitter and the transducer in the active SONAR system, contributing to output power performance and detection performance of the active SONAR system.

Sonar system and impedance matching method thereof

Growing community of inventors

Gyeongsangnam-do, South Korea

Jeong Min Lee