• 시스템엔지니어링학술지
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• 제5권2호
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• pp.27-34
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• 2009

This paper analyze technical review entry criteria and review process based on system property, and review checklist to conform technical review is also showed. The execution of review is determined according to the preparation of review item and identification for risk element. Risk level should be mitigated before technical review by appropriate plan. This paper described the entering condition of technical review for developmental phase, and tailoring consideration for technical review condition. Described technical review entry criteria, review process, and tailoring consideration is applied to development of test equipment for ground ant-air missile system. Applied system specific technical review process, tailored entry condition for test equipment for ground ant-air missile system and review check list is showed and the effectiveness of described system specific technical review process is presented.

• 인터넷정보학회논문지
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• 제17권2호
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• pp.39-47
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• 2016

일반적으로 소프트웨어 R&D 프로젝트에서는 프로그램 코드와 문서 산출물이 생성된다. 이러한 소프트웨어 R&D 산출물들은 두가지로 분류할 수 있다. 첫 번째 분류는 연차 실적 계획서, 연구개발과제계획서, 연구성과보고서, 연구 노트와 같은 소프트웨어 연구 산출물들이 포함된다. 그리고 다른 분류는 소프트웨어 요구사항 명세서, 소프트웨어 설계 명세서, 소프트웨어 테스트 계획서, 프로그램 코드와 같은 소프트웨어 개발 산출물들이다. 프로젝트의 진행 방향을 확인할 때 프로그램 코드를 테스트하고 문서 산출물을 검증하는 것이 중요하다. 또한 연구 문서와 개발 산출물 사이에 완전성, 일관성 등의 관계를 확인해야 한다. 그러한 검증과 테스트는 프로젝트 관리자와 연구자들이 프로젝트를 진행하는 동안 올바르게 진행하고 있다는 확신을 준다. 그러므로 본 연구에서는 소프트웨어 R&D에서 생성되는 문서와 프로그램을 검증하는 프로세스를 제안한다. 본 프로세스는 문서 산출물을 검토하고 프로그램 코드를 테스트하는 활동으로 구성되어 있으며, Essence를 사용하여 정의된다. 그리고 본 연구에서 제안하는 프로세스의 효율성을 사례 연구를 통해 보인다.

• 한국기계가공학회지
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• 제19권11호
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• pp.8-15
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• 2020

The government has announced its Hydrogen Economy Roadmap to strengthen global competitiveness on the hydrogen economy by focusing on hydrogen fuel cell electric vehicles and fuel cells. In this regard, the interest on the economics and safety of the infrastructure of hydrogen stations has also increased. In this study, a test bed similar to an actual hydrogen charging facility was built, and a prototype of a piston-type compressor was modeled. In this model, the piston was hydraulically compressed to progressively test leakage, leakage rate, and durability and to check for any malfunction. Moreover, the leakage rate, cylinder leak performance, and compressor operation durability were evaluated for safety; it was confirmed that there were no abnormalities. Nevertheless, an investigation of the long-term use and operating pressure of the compressor is necessary to verify the safety of developing a100-MPa domestic compressor in the future.

• 한국IT서비스학회지
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• 제12권2호
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• pp.373-386
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• 2013

The purpose of this research is to develop a model for efficient service R&D investment in government budgeting process. It is necessary to develop an efficient and effective investment model to improve competitiveness of the service industry and national economy. Various existing types of service R&D classification have been reviewed. And object-oriented service R&D request classification types have been derived. A tentative model for evaluating service R&D requests have been developed through extensive discussions on effective methodologies. The model has been refined and revised by four service budgeting experts. The revised and refined checklists and guidelines have been used for 40 real service R&D requests evaluations. As a result, a full model for service R&D evaluation and budgeting has been proved to be useful. Also, a need for more efficient and concise evaluation model has been raised through this evaluation process. A brief model with only 10 checklists has been developed and its usefulness has been proven by pilot test with 10 real service R&D requests. The results of this study can be used for evaluation of service R&D proposals and effective budgeting of R&D requests for improving global competitiveness. Further research is needed for refining the developed evaluation models.

• 한국군사과학기술학회지
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• 제20권6호
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• pp.844-852
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• 2017

Since guided weapon is high-cost and one-shot device which is non-reusable, it requires a lot of resources to prove required accuracy as a part of reliability demonstration. Once a test for proving accuracy rate of guided missile fails, it causes an additional cost and delay of schedule. This study introduces an equation for proper sample size and plan for guided-missile accuracy rate test in order to minimize the risk of test failure. Proper sample size for the test is derived by considering the reliability growth. Furthermore, each task for accuracy rate test is defined according to the development step. Therefore, this study can contribute to reduce sample size for accuracy rate test in order to meet the reliability requirement and assure transparency in the test process.

• 한국기계가공학회지
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• 제14권5호
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• pp.120-125
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• 2015

This research aims to increase the reliability and reproducibility of the ambient cycling test by properly making corrections to the test procedure. The vessel (106 L) is initially filled with 70 L of water and horizontally placed on a balance. The pressure range inside the vessel varies from 2.5 to 25.9 MPa at the frequency of 6 cycles per minute. After reviewing the results, there was a temperature difference of approximately $10^{\circ}C$ between the air pocket and the water, and the upper part of the liner faced a repeated temperature change of $40^{\circ}C$. It is possible for the aluminum liner of the composite vessel to be damaged by such a sharp change in temperature. Additionally, as a result, no pass having anything to do with the purpose of the test would occur. Therefore, it is suggested that the air pocket be completely removed.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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• pp.1688-1691
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• 2007

This paper shows that the boundary image sticking can be prohibited completely by using the vacuum sealing process, which means that the residual impurities such as nitrogen or oxygen can be a critical factor inducing the boundary image sticking. The production of boundary image sticking was checked in the test panel fabricated by the $N_2$ or $O_2$ flow during the vacuum sealing process. As a result, the boundary image sticking did not appear in the case of $N_2flow$, whereas the boundary image sticking was observed in the case of $O_2$ flow even though the test panel was fabricated by the vacuum sealing process.

• 기술혁신학회지
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• 제15권4호
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• pp.815-836
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• 2012

기업부설연구소는 그동안 기술경쟁력 확보 등을 통해 우리나라 경제성장의 견인차 역할을 담당해 왔다. 본 연구는 R&D역량이 우수한 중소 중견기업 연구소를 발굴하여 육성하기 위한 연구라고 할 수 있다. 본 연구의 가장 큰 목적은 중소 중견기업 우수연구소를 선정하기 위한 논리를 수립하고, 이에 대한 적용방안을 제시하는 것이다. 본 논문에서는 우수연구소를 선정하기 위해 논리모형에 기반한 평가지표 체계를 제시하고, Pilot Test를 통해 지표의 타당성을 검증하고자 하였다. 연구결과로 도출된 평가지표는 우수연구소에 대한 R&D지원을 위한 참고자료로 유익하게 활용될 것으로 기대하였다. 특히 기업의 입장에서는 해당기업의 R&D역량에 대한 자가진단을 위한 목적으로도 활용할 수 있을 것이다. 마지막으로 본 연구에서는 우수연구소 선정의 효과를 극대화 하기 위해서 선정결과를 활용한 차별화된 정책적 지원방안을 함께 제시하고자 하였다.

• 융합보안논문지
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• 제20권4호
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• pp.3-12
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• 2020

국방 무기체계 연구개발 과정에서 관련 규정이나 지침에 명시되지 않았지만, 연구개발 주관기관 내부적으로도 합리적인 대안 선택의 문제가 많이 발생한다. 대안 선택에 있어서 합리적인 과정이 적용되지 않으면 사업진행에 차질을 초래할 수 있으며, 이로 인해 사업기간 연장이나 추가 자원이 투입되는 상황도 발생된다. 특히 국내 미사일 연구개발 시 시험평가를 위한 많은 의사결정 과제들이 도출되며, 대표적인 것 중의 하나가 시험장 선정의 문제이다. 대안이 되는 시험장의 우선순위만 판단해야 한다면 델파이 기법(Delphi Method)이나 분석적계층과정(Analytic Hirarchy Process)을 활용할 수 있지만, 비용의 투입요소가 고려된다면 자료포락분석(Data Envelopment Analysis) 더 적합하다. 본 연구에서는 미사일 시험 시 발생되는 다양한 의사결정의 문제들을 염출해 보고, 이를 합리적으로 해결할 수 있는 의사결정의 방법이 제시된다. 제시된 의사결정의 프레임워크(Framework)는 국외 시험장을 선정하는 문제와 연관하여 모의 사례연구(Simulated Case Study)로 적용 과정이 연구된다.

• Journal of Welding and Joining
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• 제31권1호
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• pp.21-25
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• 2013

Aluminum alloy, Al5083-O, is one of candidate materials for the LNG storage tank, because of its excellent weldability, cryogenic characteristics, and corrosion resistance. The good weldability of Al5083-O is very important in LNG storage tank manufacturing. In this study, high current metal inert gas(MIG) welding process was used to get one pass welding of thick plate aluminum alloy. Bead on plate(BOP) welding was performed to evaluate the effect of welding conditions on the height of bead and depth of penetration. The optimum welding conditions were derived to get one pass welding of the thickness of 14.5mm. The mechanical properties of the welded joint were evaluated. The cross-sectional macro test, tensile test, and bending test satisfied the class rule.