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강병모,홍인식,Kang, Byung-Mo,Hong, In-Sik 한국정보처리학회 2004 정보처리학회논문지D Vol.11 No.6
인구증가와 발전으로 도시 집중화 현상에 따라 수도의 수요증가가 가속화되는 상태이다. 특히 물 부족현상 및 수질악화로 인한 수원확보도 어려워지고 있는 실정이다. 누수로 인한 막대한 손실을 줄이고자 컴퓨터와 인터넷을 이용하여 누수가 발생할 경우, 누수 여부를 판단하고 중앙 모니터링 센터에서 관리할 수 있는 시스템이 필요하다. 본 논문에서는 누수감지관과 TDR을 이용한 원격 상수도관망 누수 감지 시스템을 제안하였다. 유효성을 입증하기 위해 300mm 3-레이어 강관으로 파이로트 시스템을 구축하여 시뮬레이션 하였다. Demand of water is increased according to city centralism phenomenon in population and development. In this progress, guarantee of enough water is important factor for water supply policy. For the detection of exact water leakage point, an epochal sensing technique using computer and internet is required, so, the water pipe having sensing wire and sensing technology using TDR(Time Domain Reflectometer), is proposed in this paper. For the prove of effectiveness of this system, pilot system using 300mm 3-layer coated steel pipe is made and tested.
대장암의 근치적 절제술 후 발생한 복막 재발의 위험 인자
강병모(Byung Mo Kang),최규석(Gyu Seog Choi),임경훈(Kyoung Hoon Lim),박인자(In Ja Park),전수한(Soo Han Jun) 대한외과학회 2010 Annals of Surgical Treatment and Research(ASRT) Vol.79 No.5
Purpose: Peritoneal recurrence after curative resection of colorectal cancer has been considered to be a lethal condition and to be suitable for palliative chemotherapy. Recently, aggressive approaches such as cytoreductive surgery and perioperative intraperitoneal chemotherapy were introduced for peritoneal malignancies to improve survival. The aim of this study is to identify the risk factors of peritoneal recurrence after curative resection of colorectal cancer and to determine the indication of early postoperative intraperitoneal chemotherapy (EPIC). Methods: From January 1997 to December 2007, a total of 2,320 patients’ records with curative resection for colorectal cancer were collected through the prospective colorectal cancer registry protocol in Kyungpook National University Hospital, Korea. Of those, a total of 1,929 patients were included for analysis of the relationship between perioperative clinicopathologic variables and peritoneal recurrence. Results: The study group was composed of 1,086 men and 843 women with a mean age of 61.1. In multivariate analysis, preoperative level of serum CA19-9>37 U/㎖ (odd ratio [OR] 3.217; 95% confidence interval [95% CI] 1.525∼6.788), right colon cancer (OR 2.524; 95% CI 1.158∼5.502), pT4 tumor (OR 2.131; 95% CI 1.009∼4.502) and positive apical lymph node (OR 3.045; 95% CI 1.023∼9.066) were independent risk factors of peritoneal recurrence after curative resection of colorectal cancer. Conclusion: In colorectal cancer patients with increased preoperative serum levels of CA19-9, right-sided location, serosal exposure or invasion of adjacent organ, and positive apical lymph node, more scrupulous surveillance for peritoneal recurrence was necessary during the postoperative follow-up period. In selective patients with risk factors of peritoneal recurrence, more aggressive strategies for management, such as EPIC, were able to be considered under the acceptable general condition and life-expectancy.
상수도 관망시스템의 유지관리용 모니터링 프로그램을 위한 효율적 D/B 모델의 개발
강병모 ( Byung-mo Kang ),이현동 ( Hyun-dong Lee ),홍인식 ( In-sik Hong ) 한국인터넷정보학회 2008 인터넷정보학회논문지 Vol.9 No.4
지하 시설물인 상수도관망의 관리에 관한 몇몇 연구에서와 같이 최근 지하 시설물 관리에 대한 흥미가 대두되고 있다. 본 논문에서는 유비쿼터스 환경을 구현하기 위한 스마트태그를 적용한다. 또한 제안한 프로그램의 구현을 위하여 사용된 GPS 기술은 GPS와 RFID 혼합 비즈니스 모델을 사용하며 효과적으로 RFID 시스템으로 지하 매설물들의 데이터를 관리하고 GIS상에서 네트워크 통신과 GPS 수신모듈을 통하여 전체 시스템의 고품질의 실용적이고 효율적인 시스템을 제공한다. 본 논문에서 지역혼합 데이터베이스를 사용하는 관리 시스템을 제안하였고 제안한 데이터베이스와 인터페이스 기술은 시뮬레이션을 통하여 테스트 및 평가하였다. There has been a renewal of interest in management of underground facility in recent years. As several research have been made on management for underground facility of waterworks pipe. In this paper smart-tag is defined and applied to requiring ubiquitous environment. Also, GPS is essential technology for the implementation of proposed program, which has GPS and RFID mixed business model. And it manages data of underground facility with RFID system effectively and provides the high quality practical effectiveness of entire system through GPS receiving module and network communication on GIS. In conclusion, this paper proposed applications management system with location mixed database. Proposed database and interface skill is tested and evaluated through the simulation.
AIP법으로 형성된 TiAgN 코팅필름의 바이어스전압에 따른 표면 특성 분석
백민숙,윤동주,강병모,정운조,김병일,Baek, Min-Sook,Yoon, Dong-Joo,Kang, Byeong-Mo,Jeong, Woon-Jo,Kim, Byung-Il 한국재료학회 2015 한국재료학회지 Vol.25 No.5
The implanting of metal products is performed with numerous surface treatments because of toxicity and adhesion. Recently, the surface modification of metal products has been actively studied by coating the surface of the TiC or TiN film. We prepared a Ti(10%)Ag Target which may be used in dental oral material by, using the AIP(arc ion plating) system TiAgN coating layer that was deposited on Ti g.23. The purpose of this study was to establish the optimal bias voltage conditions of the coated TiAgN layer formed by the AIP process. The TiAgN coatings were prepared with different bias voltage parameters (0V to -500V) to investigate the effect of bias voltage on their mechanical and chemical properties. The SEM(scanning electron microscope), EDS(energy dispersive X-ray spectrometer), XRD(X-ray diffraction), micro-hardness, and potentiodynamic polarization were measured and the surface characteristics of the TiAgN coating layers were evaluated. The TiAgN coating layer had different mechanical characteristics based on the bias voltage, which also showed differences in thickness and composition.