• Journal of the military operations research society of Korea
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• v.37 no.1
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• pp.11-25
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• 2011

This study analyzes the quantitaive effect of 155M artillery ammunition procurement from third party countries in the wartime using simulation. First, we study the concept of ammunition supply, procurement plan, transportation plan in the wartime and logistics support from third party countries. We then study the ammunition support possibility from third party countries. Secondly, we make a basic model on the sea-lift from Korea to U.S in the wartime using simulation followed by making comparative models on the sea-lift from Korea to U.S and third party countries. Finally, we analyze models on the completion date of ammunition transportation and the ammunition amount of each operation step. We then execute the sensitivity analysis on the ammunition amount from third party countries. In cocclusion, ammunition prcurement from third party countreis more supply 10% than basic model.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.2
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• pp.405-414
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• 2017

In this study, a survey for a satisfaction evaluation of the Test Report Information Service (TRIS) was conducted. A survey questionnaire on modified Information System Success Model(ISSM) of Delone and Mclean was carried out by 183 users in three groups, such as munition quality assurance agency, munition corporation, and test institute. As a survey result, training on the TRIS was in strong demand in all three groups. An understanding and proficiency of the overall system were different from the work process of each user group. In addition, the munition quality assurance agency needs to enhance the system function with its characteristics. Test institute has necessity of the linkage method with the TRIS depending on the authentication system. User groups are different in the operational method of TRIS between the contractor and cooperation. Accordingly, cooperation needs to be educated continually. This study can help in the construction of a Military Quality Integration Information System to secure the reliability of munitions.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.10
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• pp.386-393
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• 2018

The Korean military supplies industry tends to become limited in terms of its development to specific areas in line with strategic promotion policies of the local private direct industrial site. However, the relation between base and small cluster is getting lower of the local industrial site. In this study, information related to authorized test reports for munitions was collected through the military quality information system and subjected to social network analysis(SNA). SNA was performed through the relationships among defense quality assurance agencies, test institutions, contracts and cooperative firms through UCINET's Two-Mode Network. In the field of weapon systems, the median technology industry, and the test analysis dependent are high in Seoul, so the analysis revealed that strengthening the infrastructure for test analysis is needed. Also, it was deemed necessary for government-driven political support. Besides, the field support system was efficiently utilizing a relatively local test analysis. It was analyzed that they are overcoming the regional boundaries of small clusters by strategically changing their contract and cooperative firms' status. The research found some spatial inconsistencies between base and small clusters in the military supplies industry, and it was judged that a political suggestion was needed.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.4
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• pp.43-51
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• 2016

Preventing the forgery and alteration of test reports is important, in order to maintain the reliability of military supplies. Based on a survey of reports on testing institutions and a case study of established electronic document systems in the public sector, we propose a system architecture, which helps prevent the forgery and alteration of test reports with legal force. The proposed architecture takes advantage of both the time stamp that records the time a document is received and a server synchronized with the testing institution. Using the proposed system architecture, the user is able to request a test and receive reports from the testing institution without delay. Also, a defense agency is able to conveniently prove the authenticity of the test reports and utilize the statistical data collected by the architecture. Therefore, we expect that the proposed system architecture will help defense agencies to prevent the forgery and alteration of test reports and ensure their reliability and quality.

• Proceedings of the Korea Contents Association Conference
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• 2016.05a
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• pp.327-328
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• 2016

전력 증폭기 모듈 패키지 산업은 전방산업의 경기에 매우 큰 영향을 받고 종속성이 높은 산업이므로 수요처인 중계기, 기지국, 무선네트워크 구축 장비 업체의 수급 동향, 기술변화, 경영환경변화, 판매실적 등에 민감하게 반응하는 수요구조로 되어 있다. SWOT 분석결과 전력 증폭기 모듈설계 노하우와 하이브리드 전력 증폭기를 개발할 수 있는 강점과 군수용으로 응용 분야 확대 및 5G 상용화의 기회를 활용하여 사업 기회를 선점하는 사업전략 수립이 필요하다. 산업구조 분석결과 구매자의 교섭력이 높으므로 전방산업에 배치된 수요기업과의 전략적이고 긴밀한 협력관계를 유지하기 위한 전략을 추진해야 한다.

• Information and Communications Magazine
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• v.21 no.6
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• pp.22-38
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• 2004

미국은 이라크 전에서 운송되는 군수품의 체계적 관리 및 전장에서의 인명손실을 광범위하게 추적하기 위해 RFID 기술을 적용함으로써 세계를 놀라게 했다. 현재는 전쟁터의 적과 아군(피아)의 구분을 위해 RFID 기술을 연구하고 있는 실정이다. RFID에 대한 세계의 진행은 다음과 같다. 미국은 MIT(메사추세츠 공대)를 중심으로 북미지역코드관리기관(UCC, Uniform Code Council), 국방성, 업체 등의 협력을 통해 Auto-ID 센터를 설립(1998년)하여 기술개발 및 상용화를 적극 추진 중이며, 일본은 사카무라겐교수를 중심으로 U-ID 센터를 설립하여 일본 독자적인 노선을 밟고 있다. 유럽 역시 독일회사인 매트로(Metro)의 Future Store 프로젝트, MyGrocer 프로젝트 등 활발히 진행 중에 있다.(중략)

• Defense and Technology
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• no.1 s.155
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• pp.50-53
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• 1992

전시 접수국 지원(WHNS) 협정의 개념은 '80년대초 이후 미국이 NATO의 중.장기 방위증강을 추진하는 과정에서 발전,구체화된 것으로서 현재 미국은 벨기에, 서독등 10개의 NATO 회원국들과 WHNS 협정을 체결하고 있다. 우리나라와 미국간의 WHNS 협정은 지난해 서울에서 개최된 제23차 한.미 연례안보협의회의(SCM) 기간중(1991년 11월 21일) 체결되었다. 이 협정은 외부침략등 유사시 미국과의 연합전쟁 수행을 전제로 미국 증원부대의 전개를 보다 신속히 하고, 증원군이 필요로 하는 군수지원 사항을 사전에 규정해 둠으로써 유사시 대응태세를 강화하는데 목적이 있으며 주한미군의 단계적 감축에 대비한 보완책으로서 그 필요성이 크다고할 수 있다. 이 협정의 체결을 계기로 한.미 양국은 수평적 안보협력관계를 발전시켜 나가는 기반을 조성하였으며, 기존의 지원사항 및 협력체계의 재정비와 한.미 연합방위능력의 향상이 기대된다

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.11a
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• pp.149-150
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• 2022

In Korea, there is no clearly established technology for diagnosing and evaluating the damage depth of concrete structures created by fire. There have been cases of repairing, reinforcing, and demolishing degraded structures without diagnosing the damage depth. The commonly used phenolphthalein-based carbonate thickness measurement does not satisfy the complete disappearance condition of Ca(OH)₂ in the interval where the relatively stationary flow declines after exposure to high temperatures. Even a small amount of Portlandite[Ca(OH)₂] reacts with a red color, and the damage depth is misjudged. It was confirmed by X-ray diffraction and scanning electron microscope that Ca(OH)₂ existed from 300℃ to 500℃ where the residual compressive strength decreased.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.11a
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• pp.15-16
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• 2022

This study is to confirm the integration performance of joints according to the method of applying the super retarding agent. When the super-delay system was applied, the integration performance was found to decrease somewhat on the 7th day of age. In the case of the 28th of age, it was found that the integration performance is improved. When a diluent is injected and a super delay agent is sprayed, shear bond strength is the highest.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.04a
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• pp.37-38
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• 2022

This study is attempted to propose an appropriate number of measurements by checking and statistically analyzing the change in hardness according to the number of measurements. As a result, there was no significant difference between the 20th and 30th data, and in the 10th case, the effect on errors occurring during measurement was found to be dominant. Therefore, as the number of measurements, proposing 20 times in consideration of the convenience of use. In addition, in order to minimize the effect on the measurement error, it is proposed to remeasure the surface mane of the measurement surface and the test value in which the error occurs on the average of the test values.