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GOP 과학화 경계시스템에 대한 평가와 개선방안 : 지휘관 및 참모 대상 설문조사 결과를 중심으로
박태웅,김태호,한현진 한국국방경영분석학회 2020 한국국방경영분석학회지 Vol.46 No.2
GOP Scientific Guard System(SGS) has been operated 4-5 years by GOP unit from 2015-2016. However the media and the National Assembly's National Defense Committee used to raise great concerns about maintaining the security operation to the front line of North Korea due to frequent errors and failures. In order to check these concerns, the purpose of this study is to confirm the overall evaluation of the GOP SGS by the GOP unit commanders, staffs and system operators who are directly operating the GOP SGS, and suggest improvement plans through problem identification. According to the ISO 2941-11 standard, the evaluation was focused on three items: effectiveness, efficiency, and satisfaction. All the questions on the survey were designed as 5-point Likert-type Scale. A parametric t-test process is applied in order to calculate the survey result. The result shows that commanders and staffs of the GOP units understand that the GOP SGS is more effective and more efficient than human concentrated guarding system. However, it is also demonstrated that satisfaction scores to the maintenance system and usage facility are not high enough to enhance the GOP security operation. The results of this study will be basic insights of the system users for the future scientific guard system.
스크린 프린팅 공정에 의해 제조된 비데용 Ag-Pd 봉형 발열체의 내구성 및 물성 평가
박태웅,현다은,김익수,이성철,이연숙,김용남,이동원,오종민 한국전기전자재료학회 2023 전기전자재료학회논문지 Vol.36 No.1
Heaters using the resistance heating principle are used in various industrial fields that require heat and are also essentially used in bidet among small home appliances. A planar heater and a coil-inserted heater mounted on a conventional commercially used bidet have disadvantages and limitations of complicated manufacturing process and local heating. In this study, silver-palladium (Ag-Pd) powder material was used for a screen-printing process that is more advantageous in achieving simplification than the existing process, and a rod-type heater for bidet was manufactured. The on-off cycle test under actual conditions was conducted to confirm the durability and the capability of the fabricated heater, and the fabricated heater operated more than 2,600 on-off cycles, which means it could be applied for a commercial product. In addition, through the on-off cycles under harsh conditions, the cause of failure was identified after the test that the durability limit temperature of the heater was 850℃. Through Ag-Pd rod heater in this study, it is expected to contribute to the efficient development of electrode materials for heaters and the improvement of the durability of heaters in the future.
한국군 기반통신망 분석 및 발전 방향 : 지상군 중심으로
박태웅,한현진 국가안보전략연구원 2020 국가안보와 전략 Vol.20 No.2
Secure and seamless communications between the forces deployed in battlefield are utmost important for success of the military operation. Numerous back-up communication systems are prepared in military in order to enhance the communication requirement of the military. The basic military communication network is classified into two main categories in Korea; fixed communication network and mobile network system. The fixed network system includes M-BcN, Leased commercial communication network and Micro-Wave network, SPIDER, TICN, Satellite communication system, combat radio system are the elements of the mobile communication network system. In this research, the propriety of current communication system of ROK Army is studied. It is discovered that some elements of the system are needed to improve in order to enhance essential military command & control capability. Current military communication system is suitable for voice communication, but is not fulfill the demand for data communication in military. Moreover it is also required to prepare future communications system which will be used in the next generation scientific warfare. This paper demonstrates directions for developing future military communication system in order to maximize its operational capability. Since it is essential to provide DATA communication along with voice communication in military acquiring and fielding multi-purpose tactical radio system for all the operation units is the very first project need to be accomplished. For the military communication network system, it is required to construct All-IP based unified network system by integrating the fixed network system and the mobile network system. 군사작전의 성공을 위해 전장에 전개된 부대 간의 보안이 확보된 원활한통신은 가장 중요한 요소이다. 이에 우리 군(軍)은 통신능력을 강화하기 위해 여러 기반통신망을 상호보완적으로 운용하고 있다. 군(軍)의 기반통신망은 고정통신망과 기동통신망으로 분류된다. 고정통신망에는 국방광대역통합망(M-BcN), 임대정보통신회선, 마이크로웨이브(M/W)가 있고 기동통신망에는 전술통신체계(SPIDER), 전술정보통신망(TICN), 군(軍)위성통신체계, 전투무선망이 있다. 본 연구에서는 한국군 지상군을 중심으로 기반통신망을 분석하여 문제점을 식별하고 미래전장 환경에 대비하기 위한 발전 방향을 제시한다. 현(現) 기반통신망은 군(軍) 통신환경 변화 대비 대용량 데이터 전송 제한, 상호운용성 부족 등 문제점이 식별된다. 기반통신망의 능력을 향상하기 위해수용성, 생존성, 통합성, 신속성, 보안성, 신뢰성, 상호운용성 측면에서 개선 및 보완되어야 한다. 중기적으로 각각의 기반통신망은 공통의 IP 기술을 기반으로 발전되어야 하고, 장기적으로 고정통신망과 기동통신망은All-IP 기반 단일 통합형 네트워크 형태로 구축 발전시켜야 한다.
비접촉 생체신호 모니터링 응용을 위한 세라믹/메탈 할라이드 복합막 기반 습도센서 개발
박태웅,김익수,김민지,박철환,서의경,오종민 한국전기전자재료학회 2022 전기전자재료학회논문지 Vol.35 No.4
Capacitive-type humidity sensors with a high sensitivity and fast response/recovery times have attracted a great attention in non-contact respiration biological signal monitoring applications. However, complicated fabrication processes involving high-temperature heat treatment for the hygroscopic film is essential in the conventional ceramic-based humidity sensors. In this study, a non-toxic ceramic/metal halide (BaTiO3(BT)/NaCl) humidity sensor was prepared at room temperature using a solvent-free aerosol deposition process (AD) without any additional process. Currently prepared BT/NaCl humidity sensor shows an excellent sensitivity (245 pF/RH%) and superior response/recovery times (3s/4s) due to the NaCl ionization effect resulting in an immense interfacial polarization. Furthermore, the non-contact respiration signal variation using the BT/NaCl sensor was determined to be over 700% by maintaining the distance of 20 cm between the individual and the sensor. Through the AD-fabricated sensor in this study, we expect to develop a non-contact biological signal monitoring system that can be applied to various fields such as respiratory disease detection and management, infant respiratory signal observation, and touchless skin moisture sensing button.