• Product Safety
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• s.21
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• pp.49-54
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• 1994

• Product Safety
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• s.23
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• pp.39-46
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• 1994

• Product Safety
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• s.20
• /
• pp.92-99
• /
• 1994

• Product Safety
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• s.19
• /
• pp.37-47
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• 1994

• Product Safety
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• s.22
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• pp.22-30
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• 1994

• Journal of Korean Electronics
• /
• v.5 no.4
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• pp.103-115
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• 1985

• Transactions of the Korean Society of Mechanical Engineers A
• /
• v.34 no.9
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• pp.1273-1279
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• 2010

Pressure tubes at the CANada Deuterium Uranium (CANDU) nuclear power plants are periodically inspected in accordance with the CSA N285.4 code. If flaws that do not satisfy the criteria given in CSA N285.4 are detected, the code permits a fitness-for-service assessment to determine the acceptability of the flawed pressure tubes. In this paper, the Wolsong In-service Evaluation System (WIES) is introduced; this system has been developed for the assessment of the flawed pressure tubes and is based on CSA N285.8. Since the system evaluates the integrity of flawed pressure tubes exactly and promptly during an in-service inspection, it will help in operating the Wolsong nuclear power plants without prolonging the outage period.

• Journal of the Korea Concrete Institute
• /
• v.18 no.3 s.93
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• pp.303-312
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• 2006

The main objective of this experimental study is to examine the feasibilities of each testing method with various kinds of grip systems for the analysis of tensile strength of GFRP(glass fiber reinforced polymer) reinforcing bars. Three types of grip systems were examined such as resin-sleeved pipe-type grip proposed by CSA(Canadian Standard Association), frictional resistance type metal grip by ASTM(American Standard for Testing and Materials) and wedge-inserted cone-type grip normally used in prestressing tendons. Also, mechanical properties of GFRP rebars with different surface deformations were investigated for each different type of testing grip used in this study. All testing procedures including specimens preparation, set-up of test equipments and measuring devices were made according to the CSA S806-02 recommendations. From the test results, it was found that the highest tensile strengths of GFRP rebars were observed when tested by resin-sleeved grip system regardless of their different surface deformations. But tensile strengths of GFRP rebars by ASTM grip system are only 10% less than those by CSA grip system. On the other hand, CSA grip is not only difficult to prepare but also not disposable. Therefore, ASTM grip system is recommended as a practical alternative to estimate the tensile strength of GFRP rebars.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.27 no.4
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• pp.305-312
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• 2014

The current American Concrete Institute(ACI), Canadian Standard Associate(CSA) and CEB-FIP Model Code 2010 provisions on the shear strength of a simply supported deep beam suggest that deep beams should be designed using the strut-and-tie model. Although this is a useful methodology to design members in disturbed regions, the quality of the design is highly dependent on the truss model that designers create. However, Hong et al. derived the shear strength equations of reinforced concrete deep beams. This thesis investigates the validity of the current ACI, CSA and CEB-FIP code provisions on the shear strength of simply supported reinforced concrete deep beams by comparing them with the shear strength equations proposed by Hong et al. The comparison shows that all of these code provisions provide reasonable estimates on the shear strength of concrete deep beam members and the selection of an internal truss model plays an important role on the estimation of shear strength.

• Aerospace Industry
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• s.104
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• pp.50-53
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• 2009

이번에 소개할 이스라엘 우주국(Israel Space Agency)은 이스라엘 정부 주도의 순수과학 및 상업적 목적의 우주 연구 프로그램을 총괄하는 정부 조직이다. 연간 1백만 U.S 달러의 예산을 집행하는 이스라엘 우주국은 1983년 설립되었으며 미국의 NASA, 프랑스의 CNES, 캐나다의 CSA, 인도의 ISRO, 독일의 DLR, 우크라이나의 NSAU, 러시아의 RKA, 네덜란드의 NIVR, 브라질의 AEB 등 다양한 우주 기관들과 연계하고 있다. 다른 국가의 우주기관들과 차이가 있다면 이스라엘 우주국은 이스라엘의 국가안보에 최우선 가치를 두고 있다는 점이다. 이스라엘의 모든 우주 개발 및 연구에 대한 업무를 총괄하는 국가기관인 이스라엘 우주국에 대해 알아본다.