• Proceedings of the Korean Vacuum Society Conference
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• 1995.06a
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• pp.100-100
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• 1995

• Tunnel and Underground Space
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• v.21 no.5
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• pp.359-369
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• 2011

In this study, physical, mechanical, and thermal properties of rock samples were investigated to estimate the Excavation Damaged Zone (EDZ) developed during the construction of the KAERI Underground Research Tunnel. The average porosity in the EDZ was increased by about 140%. The average wave velocity, Young's modulus, and uniaxial compressive strength in the EDZ were decreased by about 11, 37, and 16%, respectively. And the thermal conductivity in the EDZ was decreased by about 20%. From the laboratory tests, the EDZ size could be estimated to be around 1.1-2.4 m.

• The KIPS Transactions:PartD
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• v.15D no.4
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• pp.581-588
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• 2008

Old films or photographs usually have damages from physical or chemical effects, and the damage and digitalization make stain, scratch, scribbling, noise, and digital drop out in frames. Damages include global damage and local damage, and it is well known that local damage restoration is a main factor for improving image quality. Previous researches have focused on impairment localization (esp. for line scratch impairments) and restoration techniques for line scratch, dirt, blob, and intentional scratch. Inpainting is a key technique using partial derivatives to restore damages in images. It does not show good quality for the complex images because it is based on finite order for partial derivatives, and it takes much time complexity. In this paper, we present a modified inpainting scheme, where we use Sobel edge operator's and angle to compute isophotes, and compare our scheme with Bertalmio's scheme. We experiment our scheme with two old Korean films, and Simulation results show that our scheme requires smaller time complexity than Bertalmio's scheme with comparable reconstructed image quality.

• Korean Journal of Heritage: History & Science
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• v.48 no.4
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• pp.44-61
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• 2015

Mural tomb in Goa-ri(Goryeong) built in the 6th Century Gaya period investigated precisely by the scientific method. They were used to optical equipments for investigation and made a damage map according to the damaging types. The mortar layer was mostly exfoliated from the rest of the wall except for the burial chamber ceiling and corridor ceiling. Also painting layers rarely not observed. Most of the paintings were damaged except lotus painting in burial chamber ceiling. Various damage types that exfoliation, earthen dirt, film coating were found in murals. Damage factors of mural were the porous characteristics of mortar layer and the movement of moisture in the murals. They were caused physical damage such as crack, exfoliation. It was getting worse and causing to secondary damage like earthen dirt, film coating.

• Journal of Korean Physical Therapy Science
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• v.7 no.2
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• pp.427-437
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• 2000

편마비 환자의 물리치료는 장애 결과를 완화시키는 것에 초점을 두고 있다. 본 연구는 신경생리학적 개념을 기초로 한 중재 접근 방법 중 편마비 환자에게 신경 발달 치료와 신경근 균형 접근 기법의 중재 효과를 비교 하였다. 연구 대상은 서울특별시와 전라북도에 소재한 종합병원 및 정형외과 의원에 입원 및 통원하고 있는 47-71세의 연령 범위에 있는 편마비 환자 30명 이다. 중재 집단의 기능적 능력 향상을 평가하기 위해 편마비 환자를 위한 운동 평가 척도와 수정된 바델 척도를 평가도구로 사용하였다. 편마비 환자의 기능적 능력 향성을 평가도구에 의해 측정된 결과를 분석한 바 운동평가 척도 항목중 바로누운 자세에서 옆으로 눕기와 앉아서 균형 취하기 영역에서, 수정된 바델 척도 항목 중 식사하기 영역에서 통계적으로 유의한 차이를 보였다(P<.05). 편마비 환자의 손상 부위, 손상 형태, 마비 부위 등의 손상의 본질에 따른 대상의 선정과 운동 조절 형태에 관한 지식 그리고 신경학적 결함 정도를 심도있게 다루어 기능적 능력 향상의 임상적 효과를 검증하는 것이 중요하다.

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.29 no.3
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• pp.57-61
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• 2015

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.29 no.4
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• pp.69-73
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• 2015

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.29 no.2
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• pp.55-58
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• 2015

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.29 no.5
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• pp.70-73
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• 2015

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.1
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• pp.127-135
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• 2018

With the nation showing increasing concern for earthquakes, there have been several methods for the analysis of earthquakes and evaluation of damage. Nevertheless, there is no clear standard to assess the seismic damage to structures quantitatively. Accordingly, this study conducted seismic analysis of several forms of seismic waves and actual seismic load, targeting the cable stayed bridge, which is supported by a cable and proposes a method for evaluating the damage based on the results. The damage index was calculated based on the tilting of the pylon of the cable-stayed bridge and the characteristics of physical seismic damage was suggested with 4 levels, such as A, B, C, and D. In addition, it is not proper to simply judge that the seismic damage index is obtained as large or small at all times depending on the seismic analysis method. Although this study focused on the proposal seismic damage index and an evaluation of the damage targeting the cable stayed bridge, the result was applied to a structure with a similar maximum displacement response.