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손동환,진호철,정미진,이준호,( Ratna Dewi Maduwu ),( Sabrina Aufar Salma ),김주현 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.1
Indacenodithieno[3,2-b]thiophene(IDTT) and chromone derivatives, SMD1(without fluorine) and SMD2(with fluorine), based on conjugated small-molecule-donor materials were designed for organic solar cells. In this research, we synthesized materials which consist of the chromone derivatives as an electron-accepting group combined with IDTT, which has the effective form of push-pull structure in order to enhace the intramolecular charge transfer and the optical absorption of materials. The device performance of the materials end-capped with chromone derivatives containing fluorine shows higher efficiency than the one without fluorine. The HOMO/LUMO energy levels of the SMD1 and SMD2 were -5.33/-3.56 and -5.39/-3.50 eV. The power conversion efficiencies of SMD1/PC<sub>71</sub>BM and SMD<sub>2</sub>/ PC<sub>71</sub>BM in inverted organic solar cells were 1.03% and 2.23%, respectively.
수중 센서 어레이에서 고 신뢰성을 고려한 신호 전송 시스템 설계
손동환,정현주,Son Dong-Hwan,Chung Hyun-Ju 한국군사과학기술학회 2004 한국군사과학기술학회지 Vol.7 No.4
A system for detecting underwater target demands a high operational reliability because of the difficulty of maintenance and repair when the system has a few troubles during long operating period. Therefore, in this paper, we have proposed a signal transport system with a high reliability in an underwater sensor array system composed of magnetic and acoustic sensors. In this system, the nodes for signal transport are connected dually each other with single-hop construction and a magnetic sensor is connected to a couple of neighboring nodes. This enables the output signal to transport from a node to the next node and the next but one node. Also, the signal from a magnetic sensor can be transported to two nodes at the same time. Thus, the system with this construction makes possible to transport sensor data to another node which works normally when a transport node or cable have some faults and will operate normally although it happens some problems in a few signal transport nodes and connection cables.
손동환 한국경쟁법학회 2022 競爭法硏究 Vol.45 No.-
The attitude of Korean supreme court in 2021 verdict is characterized as placing emphasis on competition law regulation which is the exception of private autonomy. Ceo’s duty to monitor against cartel in the shareholder’s representative lawsuits, margin squeeze as the abuse of dominant position, the extension of statute of limitation in the Korean FTC’s fine and strict unfairness test in the cartel are all supported by the supreme court. The purpose of Large retail business act and franchise business act are supported when balancing the purpose of making the equal position between the supplier and the large business entity, franchiser and franchisee with the private autonomy. These tendencies show the awareness to economic reality and the direction of interpretation in the Korean supreme court.