• 한국CDE학회논문집
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• 제18권6호
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• pp.407-416
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• 2013

Acting an important risk management tool for main contractors, pre-qualification has served a key marketing tool for subcontractors in various industries. Current industrial environment has required the time intensive pre-qualification ability to small and medium-size subcontractors as a matter of competitive business. In order to support the subcontractors, this paper proposes a database model for pre-qualification management system (PQMS) that automates the pre-qualification process by using information technologies. The modeling process consists of specifications for its requirements, functional modules, and a database model for the PQMS.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 하계학술대회 논문집 C
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• pp.1727-1729
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• 2002

To cope with increasing of electric power demand in metropolitan areas, large capacity underground power cables are needed. Under such situations, our company has developed 345kV XLPE insulated cable and accessories. As the final step of development of the 345kV XLPE cable and accessories, the pre-qualification test was carried out on the test line composed of cables, pre-fabricated joints, EB-Gs and EB-As. This paper sums up the pre-qualification test conditions and the results.

• 대한안전경영과학회지
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• 제10권3호
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• pp.29-33
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• 2008

According to statistics released by the Ministry of Labor for the past 6 years, work-related accidents in the construction industry have been on the continued increase, resulting in social and economic losses that are difficult to determine at an exact amount. However, the number will likely get much bigger if unreported cases are included, considering the fact that the aforementioned statistics are based soley on the applications filed with Korea Workers' Compensation and Welfare Service. The practice of businesses choosing not to report and dealing with industrial accidents in an unauthorized manner is defined as "concealment of industrial accident". The reason the employers tend to engage in the concealment practice even at their huge cost is a "pre-qualification" scheme for the applicants in the government procurement process. Under the pre-qualification scheme, the applicants with a high rate of industrial accidents receive a low grade and become less attractive candidates in the procurement process, thus losing an opportunity to win a contract. Such failure relates directly to the fate of business organizations, to survive or not. That is why they are making all-out efforts to obtain a high grade in the pre-qualification evaluation. With regard to the accident-concealment problem, the following can be mentioned as preventive measures: (1) To exclude a rate of industrial accidents from the pre-qualification scheme; (2) To strengthen the institution of imposing penalties on the occurrence of industrial accidents; (3) To introduce private insurance system to the current industrial accident compensation insurance; and (4) To give non-recognition treatment to industrial accidents that were not reported upon occurrence. In conclusion, the concealment problem can be resolved if the aforementioned measures are to be taken continuously along with corrective measures against institutional deficiencies.

• 한국신뢰성학회지:신뢰성응용연구
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• 제12권3호
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• pp.131-138
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• 2012

A design of reliability qualification test based on performance distribution is developed. In general, the performance of an item degrades as the time goes by and the failure of an item occurs when the performance degradation reaches the pre-determined critical level. This article considers the reliability qualification test based on a more tightened critical value at the earlier stage to reduce the evaluation testing time and cost. A numerical example is provided to illustrate how to use the developed reliability qualification test.

• 한국멀티미디어학회논문지
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• 제13권11호
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• pp.1677-1686
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• 2010

안전한 스마트폰 사용 환경을 위해 애플리케이션 콘텐츠의 검증 및 운영은 필수적이다. 기존 스마트폰 환경에서의 애플리케이션 콘텐츠 검증은 애플리케이션 마켓 업체에서만 수행되었으며 해당 애플리케이션은 사용자가 직접 관리해야했다. 하지만 이러한 애플리케이션 콘텐츠 검증 및 관리에는 다양한 보안 취약점이 발생할 수 있다. 따라서 본 논문에서는 기존 방식에서의 보안 취약점을 분석하고 이를 기반으로 사전 검증 방식을 활용한 스마트폰용 애플리케이션 콘텐츠 관리 기법을 제안한다.

• 한국신뢰성학회지:신뢰성응용연구
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• 제10권1호
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• pp.1-9
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• 2010

In general, the performance of a component degrades as time goes by and failure of a component occurs when the performance degradation reaches a pre-specified level. It is difficult to obtain the failure time distribution data or the necessary number of failure data especially for the metal or machine part. Thus, a design of reliability qualification test based on performance distribution is more effective than failure time distribution. In this study, a performance-based reliability qualification test is developed and a numerical example is provided to illustrate the use of the developed reliability qualification test. This approach could be applied to many kinds of metal or machine part whose magnitude of strength could not be evaluated during at any random points but judgement can be made by only failure of the part. Besides, it is also possible that any parts which have a similar failure characteristics could be applicable to the developed reliability qualification test.

• 전기학회논문지
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• 제60권5호
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• pp.1062-1067
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• 2011

As the expension of metropolis and increasing of housing site, GIL(Gas Insulated Line) comes to the fore as an alternative to overhead transmission line avoided by local resident. The certification and experimental test for the GIL is now in progress in under ground test lab, Go-chang. For the test, we propose a method of PQ(pre-qualification) test which is essential for development and field application in this paper. The test following this method take about 200 days or 300 days under the circumstances.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 춘계학술대회 논문집
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• pp.1067-1072
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• 2008

The objective of this project is to get the qualification for participation in any procurement conducted by NYCT by proving Hyundai-Rotem's capability of truck development according to NYCT Pre-Qualification program. The scope of the PQ program is to develop the new fabricated truck from NYCT's old-fashioned casting truck and to operate the new fabricated truck in normal NYCT passenger service during 1 year. In this paper, the characteristics of the new fabricated truck in terms of design, manufacture and tests criteria are mainly introduced comparing with the domestic and European-style trucks.

• 한국주거학회논문집
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• 제21권6호
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• pp.71-80
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• 2010

The purpose of this study is to classify defects of the residential building by analyzing the defect specified by prequalification of residential building reconstruction and to suggest the solution of the problem which can be arisen during each stage of plan, construction and maintenance. By sorting the main defects which is specified by pre-qualification of residential building reconstruction for three years from August 2006 to August 2009 into 4 catagories and analyzing the cause of the defects, we draw the way of maintenance to prevent the defects and make pleasant residential environment. The reason for the frequent defects from residential building is mainly deterioration. It occured on the finishing more than on the structure, which means that residents can find defects easier on the finishing than the structure and clear the demand for repair. The result of analyzing of pre-qualification of residential building reconstruction is that the defects mostly caused small, masonry constructed and lower apartment. The apartment which is not into legal right for maintenance naturally have more defects than the others. In conclusion, it is necessary to establish a law of obligation duty of the maintenance of small apartment.

• 한국항행학회논문지
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• 제13권5호
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• pp.763-772
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• 2009

정보화 사회가 추진됨에 따라 다양한 행정정보보호시스템의 개발이 이루어지고, 국가 및 공공기관에서도 안전한 서비스 제공을 위해 행정정보보호시스템의 도입이 증가하고 있다. 특히 행정정보보호시스템은 보안성에 대한 검증이 무엇보다 중요시 되므로 행정정보보호시스템의 보안성 평가 서비스에 대한 관심이 증가하고 있다. 이에 따라 국 내외적으로 다양한 보안성 평가 서비스에 대한 연구가 진행되고 있다. 이에 본 논문에서는 영국 및 캐나다의 보안성 평가 서비스를 분석하고, 이를 바탕으로 국내의 국가 및 공공기관의 사용자에게 신뢰성을 제공할 수 있는 행정정보보호시스템의 사전 검증 도입방안에 대해서 제안한다.