• Journal of the Korean Society of Radiology
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• v.13 no.5
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• pp.779-783
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• 2019

Osteoporosis is a disease that increases the risk of fracture. In this study, dual energy X-ray absorptiometry (DXA) was used to compare bone density according to the lumbar spine rotation and inclination. The results of the showed that the bone density decreases with the rotation of the lumbar spine, but the result was not predicted in the inclination of the lumbar spine. This is due to the change of the inclusion of lumbar spine in the area of the bone and the bone density due to the overlap between the lumbar spine 1 and 4. In other words, the Radiogical technologists needs to make efforts to prevent the rotation of lumbar spine and the overlap according to the inclusion to obtain the accurate bone density results.

• The Journal of the Korean dental association
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• v.21 no.2 s.165
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• pp.131-140
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• 1983

• Nuclear industry
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• no.1112 s.10
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• pp.59-61
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• 1982

국제원자력기구(IAEA)의 아시아지역에서의 원자력과학기술협력협정(RCA)은 금년으로 10년을 맞이했다. 현재, 이 협정에 따라 동남아시아 여러 나라에서는 식품조사, 방사선계측기의 보수 등의 프로젝트와 UN개발계획 (UNDP)과의 협력에 의한 공업이용프로젝트가 활발하게 진행되고 있다.

• The Journal of the Korean dental association
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• v.37 no.5 s.360
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• pp.365-375
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• 1999

• Proceedings of the Korean Nuclear Society Conference
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• 2001.05a
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• pp.355.1-355
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• 2001

• 전기의세계
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• v.12
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• pp.24-29
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• 1963

펄스증폭기로는 radar를 비롯하여 T.V., 전자설계기 등에 광범위하게 이용되고 있는 한편 원자력의 연구 및 그의 응용부분에 있어서도 상당히 이용되고 있다. 여기서는 방사선계측장치중에서 없어서는 안될 펄스증폭기의 설계와 이에 관련된 사항에 관하여 고찰하였다.

• The Journal of the Korean dental association
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• v.17 no.1 s.116
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• pp.29-34
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• 1979

• Journal of the Korean Society for Precision Engineering
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• v.22 no.8 s.173
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• pp.7-16
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• 2005

• The Journal of the Korean dental association
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• v.43 no.12 s.439
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• pp.822-837
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• 2005

• Journal of Korean Foot and Ankle Society
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• v.1 no.2
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• pp.75-80
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• 1997

Radiographs were made of the feet of one hundred and twenty four normal children who were ranged in age from 1 to 13 years. On lateral radiographs that were made with the feet in standing, the talo-first metatarsal, calcaneal pitch and calcaneo-fifth metatarsal angles and arch ratio were measured. Most of the children in this study revealed flattened feet in earlier ages and the mean values were changed with age up to normal range later in the early school ages. These data might provide one of the standard for assessment of the flatfoot in children. However, the diagnosis and treatment of the flatfoot should be based on clinical assessment and radiographic values should not determine clinical management even if the values are beyond the normal range.