간행물

대한안전경영과학회 학술대회

권호리스트/논문검색
이 간행물 논문 검색

권호

2015년 대한안전경영과학회 추계학술대회 (2015년 11월) 68

3.
2015.11 구독 인증기관 무료, 개인회원 유료
Because the lens is a tissue with the highest sensitivity, the lens shielding is very important in CT imaging. However, in clinical terms, there is a lack in the efforts in decreasing dosage on the lens, and the shielding of dosage and the effects on the imaging are researched using bismuth to evaluate the usefulness. As results of the dosage evaluation results, when there is no gantry angle when the thickness of the lens shielding material is 0mm, the dosage was 28.476mGy, and when there is gantry angle, the dosage was 20.852mGy that it was confirmed that the dosage was 27% lesser with gantry angle. It was confirmed that the dosage value decreased with the increase of thickness of lens shielding material when there is gantry angle, and when the lens shielding material was 1mm, the dosage decreased by approximately 39% compared to when it was 0mm. When there is gantry angle, the dosage values were respectively 12.788mGy and 12.776mGy for the crystalline lens shielding material thicknesses of 0.75mm and 1.0mm. In image analysis, the quantitative evaluation and the qualitative evaluation were almost constant regardless of the thickness of the lens shielding material. The optimal lens shielding material thickness to minimize the does of lens and increase the value of diagnosis in Brain CT examination is 0.75mm. Therefore, if this is utilized for easier use in clinical practices, it is considered to be able to contribute to not only the protection of the lens but the accurate diagnosis of diseases.
4,000원
10.
2015.11 구독 인증기관 무료, 개인회원 유료
Beam hardening artifact can be caused by metal material when performing PET exam. Therefore, we studied a solution decreasing artifact caused by metallic dental implant. The higher voltage, the lesser artifact in CT exam. But Higher voltage dosen't affect PET exam. The thicker silicon the lesser artifact in CT&PET exam. Both methods make less artifact in CT&PET exam. But considering safety of patient, the way of using Silicon is better.
4,000원
12.
2015.11 구독 인증기관 무료, 개인회원 유료
Weight training to prevent industrial accidents and make system at the base will be a industrial safety and health education systems. But listening to the education personnel joined in disaster prevention may not be easy to give a big effect on industry if you don't mind. Modern variety of sectors and complex operations are being made. This is industrial sites are various workers involved, and varied tasks are carried out, counselor.
4,000원
16.
2015.11 구독 인증기관 무료, 개인회원 유료
본 연구에서는 플랜트 공사 저장탱크 붕괴 사고사례 원인에 대한 연구를 수행하였다. 저장탱크란 기 름, 물, 가스 기타 약품등과 같은 유체를 효율적으로 저장하기 위하여 인공적으로 만들어진 지상의 저장 시설을 총칭해서 말하는데, 일부 업체들은 군집된 저장소(Tank Farm)를 보유하고도 있다. 저장탱크 시 공 방법을 보면 저장물의 성분 및 종류에 따라서 탱크 종류가 결정되는데 대부분 작업이 중량물을 건설 중장비를 동원하여 높은 곳에서 이루어지는 작업 형태를 갖추고 있어 일반 공종 작업에 비해 훨씬 많은 위험 요인을 내포하고 있는 실정이다. 최근에 들어 저장탱크 붕괴 등의 중대한 사고가 빈번하게 발생하 는 바, 구조물 특성상 자칫 대형 인명사고로 발전하는 경우가 많다. 본 발표에서는 최근 들어 발생한 저 장탱크 붕괴 사고사례을 통하여 이에 대한 원인을 파악 하고자 한다.
4,000원
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