• Magazine of the Korea Concrete Institute
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• v.4 no.2
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• pp.29-38
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• 1992

• Explosives and Blasting
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• v.13 no.4
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• pp.73-81
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• 1995

Explosives demolition mothod is allowed for more efficient time-saving and safer demolitioni operations as compared to conventional / mechanical demolition methods. CDI has to minimize the effects of noise, dust and various demolition hazards to the public areas, and residences that are located adjacent to the project site. CDI's explosives demolition work on the Nam san Foreigner's Apartment Complex and chosun trading Co's factory are backed by over 45 years of explosives experience in the demolition of over 6,000 structures worldwide, many of these structures are similar to the Nam san Foreigner's Apt. and Chosun trading's factory in construction and proximity to sensitive adjacent exposures. Recoginized worldwide as the founder of the leader in explosives demolitioni technology, CDI always will applied "State-of-the-Art" explosives techniques to safely and successfully achieve the desired demolition results on these project. CDI has never injured, much less caused any fatality, to either a worker on one of our sites or to a third party during the implosion of high-rise structure.

• Journal of architectural history
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• v.29 no.2
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• pp.19-30
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• 2020

In the early of Joseon Dynasty, Royal Tomb developed from stone chamber tomb to lime chamber tomb through precedents. The lime chamber tomb consists of main-chamber(JeongGwang) and sub-chamber(ToeGwang). This separation makes character to construct tumulus of the Royal Tomb half and half. By this character, the Royal Tomb are not constructed by separate structure but constructed by coadjustment. The underground structure and tumulus of the Royal Tomb affect each other in the size and method of construction. The selecting type of Royal Tomb is generally made decision through terrain and politics. This study prove the architectural structure is also one of the major cause the that select type of Royal Tomb.

• Journal of Korean Academy of Nursing
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• v.35 no.3
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• pp.631-640
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• 2005

Purpose: The present study purposed to investigate and analyze domestic websites providing information about dementia and to suggest future directions for the development of dementia-related websites. Mothod: For this purpose, the researcher selected 13 domestic websites that were available in November and December 2004, and evaluated them in terms of construction, operation, accessibility and contents on a scale 4 point (0$\~$3). Result: The construction of dementia-related websites got 6$\~$13 out of 18 points, which suggests that management policies for the operation of dementia-related web sites are inadequate. The operation of dementia-related web sites got 7$\~$15 out of 24 points. In particular, all 13 sites got a low score in the aspect of continuance. With regard to accessibility, the sites were evaluated on how easily users could access the sites and they got 2$\~$8 out of 15 points. In evaluating contents, the sites got 9$\~$18 out of 21 points with regard to the purpose and appropriateness of the contents. Conclusion: This shows that most sites did not provide diverse types of dementia-related information. Because it is highly advantageous to perform primary dementia-preventing management through websites, this study proposes to develop a website evaluation system in order to provide high quality dementia-related information.

• Journal of Korean Society of Steel Construction
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• v.19 no.3
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• pp.259-270
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• 2007

This paper presents an analytical method of evaluating the flexural behavior of RC (reinforced concrete) beams strengthened with high-strengh bars. The former experimental results were used to compare with the analytical results. The experimental results also outline the advantages of externally strengtheng method with high-strenght bars. To evaluate the flexural behavior of RC beams strenghtend with unbonded high-strength bars, this paper proposes a method involving a simple strength-summation method. This method basically assumes that the total strength of RC beams strengthened with high-strength bars is equal to the sum of the strengths of the RC beams and the high-strength bars. This analytical method also includes the effects of compressive force due to the tension from high-strength bars. A comparison of the analytical and experimental results leads to the conclusion that the simple strength-summation mothod can simulate the flexural behavior of RC beams strengthened with high-strength bars with a good level of accuracy.