• 시스템엔지니어링학술지
• /
• 제17권2호
• /
• pp.114-121
• /
• 2021

Today, it is a time when self-help efforts are being made to increase the demand for international certification by domestic and foreign railway orderers and develop excellent railway systems for railway system and railway construction projects. Since 2011, cases of obtaining international certification related to the domestic railway system/products have been collected and analyzed through literature and Internet data and based on the analysis results, evaluation results on the acquisition of international certification in Korea are presented. Through these results, the government, research institutes, and industries will be practical reference materials for international certification-related work.

• 전기학회논문지
• /
• 제66권9호
• /
• pp.1379-1384
• /
• 2017

To guarantee safety and reliability, RAMS(Reliability Availability Maintainability and Safety) activity for a communication software in train communication network is studied. In this paper, preliminary hazard analysis in RAMS activities is studied for the communication software. Preliminary hazard analysis is done through library for communication software that the specification is defined by IEC 61375. The hazards are defined, then causes and consequence for each hazard are defined. The total 36 preliminary hazards are classified. For high severity hazards are changed to acceptable level by upgrading of system requirement specification.

• 무역학회지
• /
• 제44권2호
• /
• pp.287-305
• /
• 2019

The export of agricultural, fisheries, and food products acts as an engine of growth for developing countries in particular. However, exporting these items is easier said than done since issues of certification and inspection, so-called technical barriers to trade (TBT) and sanitary and phytosanitary measures (SPS), in developed markets have worked as major obstacles for exports. This paper examines the institutional aspects and recent trends of South Korea's TBT/SPS-related cases against exporting firms of the developing countries. We suggest a win-win partnership model that can promote cooperative synergies between Korea and developing employing trade-related technical cooperation or ODA (Official Development Aid). Technical cooperation such as the provision of on-spot field consulting services on TBT/SPS-related issues for exporting firms and Korean OEM firms of developing countries can lead to mutual gains. This cooperative partnership can create gains from "the trade-development nexus" for both sides while promoting sustainable trade and investment relationships between Korea and developing countries.

• 지역사회간호학회지
• /
• 제15권3호
• /
• pp.376-384
• /
• 2004

Purpose: The CHP program has been evaluated as one of the most successful program in the public health area in Korea. The objects of this study were as follows: 1) to evaluate the job activities of the CHP program, using service contents analysis. 2) to figure out personal factors and the outcome of CHP's activities. Method: Data were collected by sending questionnaires to 130 subjects through the mail from May to December 2003. The response rate was 48.0%. The Data were analyzed by the SPSS WIN program with t test and Pearson correlation coefficient. In using these methods. independent variables are CHP's personal factors (age, experience, certification of specialty) and regional factors (geographical classification, aged population, village workers, cooperation of community leaders, work-conditions), and a dependent variable is the outcome of CHP's job activities. Result: The results of t test analysis show that regional differences between factors are influential in the welfare service, the routine job, and the consultation. As a whole, this is shown that CHPs represent experience, the number of village workers and CHPs living condition of work and most of the categories of jobs that influenced over statistical meaning of differences (t=2.417, p=1.043, t=6.123, p=.004, t=4.309, p=.000). There is a significant positive relation between the routine job and the consultation(r=.455, p=.000), the consultation and the education(r=.461, p=.000). Conclusion: Finally, according to the results of this study, the CHP program should be developed and continue to meet the basic health care needs of the residents in accordance with the philosophy of their own primary health care.

• 한국컴퓨터정보학회논문지
• /
• 제29권9호
• /
• pp.25-37
• /
• 2024

본 연구는 ESG 서류 검토 과정의 효율성 향상을 위해, 광학 문자 인식(OCR)과 검색 증강 생성(RAG) 기술을 융합한 새로운 자동화 시스템을 제안한다. 제안된 시스템은 OCR 프로세스에 앙상블 모델 기반의 이미지 전처리 알고리즘과 하이브리드 정보 추출 모델을 적용하여 텍스트 인식의 정확도를 향상시키며, RAG 파이프라인에 레이아웃 분석 알고리즘과 재순위화 알고리즘, 앙상블 검색기 등을 적용하여 정보 검색과 답변 생성의 신뢰성을 최적화한다. 시스템의 성능을 평가하기 위해 온라인 포털에 게시된 인증서 이미지와 기업 웹사이트 등에 공개된 회사 내규를 사용하여 테스트를 진행한 결과, 인증서 검토에서 93.8%, 회사 내규 검토에서 92.2%의 정확도를 달성하며, 제안된 시스템이 ESG 평가 과정에서 인간 평가자를 효과적으로 보조할 수 있음을 보여주었다.

• 한국산학기술학회논문지
• /
• 제15권8호
• /
• pp.5294-5302
• /
• 2014

공개키 기반 기술의 발전은 전자정부, 전자금융, 전자결제 등 다양한 서비스를 가능하게 하였으며, 완벽한 안전성을 가지고 있는 것으로 평가된다. 하지만, 최근 허트블리드 버그 등 공개키 기반 이용 기술에 대한 취약점이 지속적으로 발견되고 있다. 본 논문에서는 공개키 기반구조의 안전성 및 신뢰성을 검증하기 위해, OpenSSL을 이용하여 키쌍의 충돌율을 분석하였다. 실험은 OpenSSL을 이용하여 5개의 사설인증기관을 생성하고, 각 사설인증기관에서 200만개의 인증서를 생성해 총 1,000만개의 인증서를 생성하여 키쌍 충돌 여부를 분석하였다. 실험은 다음과 같은 과정으로 수행되었다. Openssl을 이용하여 5개의 사설인증기관 생성, 각 사설인증기관에서 200만개의 인증서를 생성, 총 1,000만개의 인증서를 생성하여 키쌍 충돌 여부를 분석하였다. 실험 결과 1,000만건 중 35,000건, 즉 0.35%의 확률로 공개키 개인키가 충돌을 발생하였다. 이는 전자상거래, 보안서버 등 다양한 분야에서 충분한 위협이 될 수 있는 요소이다. 향후에는 공개키 기반기술의 위협요소를 제거하기 위해 난수생성기, 큰 소수 선택 문제 등 깊이 있는 연구를 진행할 것이다.