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이길재,고상모,장병욱,김통권,김용욱,Lee, Gill-Jae,Koh, Sang-Mo,Chang, Byung-Uck,Kim, Tong-Kwon,Kim, Young-Ug 대한자원환경지질학회 2011 자원환경지질 Vol.44 No.1
국내에서 유통되는 산업원료물질 중 모나자이트, 인회석, 저어콘, 보오크사이트, 티탄철석 등은 천연방사성핵종을 함유한 원료광물로서 '자연기원방사성물질 (NORM)'에 속한다. 이러한 원료광물을 사용하여 제조된 제품, 반제품, 부산물 또는 폐기물이 원료광물보다 천연방사성핵종의 농도가 증가된 물질은 '인위적으로 농축된 자연기원방사성물질 (TENORM)'로 분류한다. 인산비료를 제조하는 남해화학(주)에서 사용하는 인회석은 NORM에. 부산물로 생산되는 인산석고는 TENORM에 해당된다. 이와 같은 NORM을 대량 사용하는 사용시설인 남해화학(주) 내부 및 주변 지역 지질환경에 대한 영향평가가 필요하다. 이러한 배경에서 이 공장 내부 및 주변 지역의 지질특성, 토양에 대한 광물학적 및 지화학적 분석을 수행하여 향후 관리를 위한 과학적인 기초자료를 제공하고자 한다. 남해화학(주) 공장 내부 및 인근 지역 토양의 광물조성은 석영, 장석, 운모, $14{\AA}$광물, 고령토, 각섬석 등 모암으로부터 유래된 광물조성과 석고, 인회석 등 석고 야적장에서 유래된 광물조성으로 혼화되어 있다. 이 지역 토양의 평균 U 함량은 4.6 ppm, Th 함량은 10 ppm으로서 지각의 평균 함량과 거의 유사하다. 토양의 $^{40}K$의 농도는 191-1,166 Bq/kg, $^{226}Ra$의 농도는 15.6-710 Bq/kg이고 $^{232}Th$의 농도는 17.4-72.7 Bq/kg으로서 극히 높은 핵종 농도는 보이지 않으나 상대적으로 높은 $^{226}Ra$ 농도는 인산석고 적재장에서 뚜렷이 확인되며 $^{232}Th$ 농도가 높은 지점은 공장 동편 도로변 및 산체에서 잘 확인된다. 토양시료의 외부위해지수 범위는 0.24-2.01이며 평균 0.54로서 전체적으로는 위해 기준치로 제시되는 1.0 이하이지만 일부 지점에서는 1.0 이상이다. Some industrial minerals used in domestic industries such as monazite, apatite, bauxite, and ilmenite belong to NORM (Naturally Occurring Radioactive Materials) because they show a high radioactivity. Products, semi-products, wastes, and by-products which show higher radioactivity than NORM belong to TENORM (Technologically Enhanced Naturally Occurring Radioactive Materials). Apatite used for manufacturing phosphate fertilizer in Namhae Chemical company belongs to NORM, and its by-product, phospo-gypsum, belongs to TENORM. A geological investigation is needed for the future environmental impact assessment of the Namhae Chemical company's site. According to survey results of the Namhae Chemical company's site, soil mineral composition indicated the mixture of minerals derived from the country rock (quartz, feldspar, mica, $l4{\AA}$ mineral, kaolin and amphibole) and minerals from the gypsum open-air storage yard (gypsum and apatite). Soil samples showed average content of U 4.6 ppm and Th 10 ppm, which are similar to average crustal abundances. They also show average contents of $^{40}K$ 191-1,166 Bq/kg, $^{226}Ra$ 15.6-710 Bq/kg, and $^{232}Th$ 17.4-72.7 Bq/kg, which indicate moderate levels of radio nuclide. But $^{226}Ra$ anomaly in the gypsum open storage yard is clearly confirmed and $^{232}Th$ anomaly is also confirmed in the east road side of the factory and nearby mountain areas. Soil external hazard indices ranged 0.24-2.01 with the average 0.54. Although most external hazard indices were lower than 1, which means radiation hazard index to be negligible, 5 samples out of total 40 samples showed higher values than 1, and further detailed investigation is needed.
권칠수 ( Chil Soo Kwon ),김병직 ( Byung Jik Kim ),고한석 ( Han Suk Go ),김용욱 ( Young Uck Kim ),김응선 ( Eung Sun Kim ) 대한고관절학회 1991 Hip and Pelvis Vol.3 No.2
Through operative treatment by internal fixation, the mortality and complication in pertrochanteric fracture decreased markedly. After introduction of compression hip screw, it is accepted as a standard method in pertrochanteric fracture and contributed to decreaseing the mortality and complication. But it is pointed out that the compression hip screws have prolblems such as difficulty in reduction, cutting out and jamming. Also operation risk is very high in partient with poor general condition and old age. Gamma nail, a kind of interlocking nail was recently introduced. Since it is a closed intramedul- lary nail, it has an advantage such as low intraoperative blood loss, and less soft tissue injury. Also it has an advantage of a comprssion screw and biomechanical advantage such as short lever arm, low vertical force component and low axial torque component. In this paper, authors are reporting 8 cases of pertrochanteic fractures of femur treated by Gamma nailing from September, 1990 to June, 1991.
확장된 피판을 상하 Visor Flaps으로 이용한 안면 중앙부 재건 치험례
김용욱,박병윤,이영호 大韓成形外科學會 1990 Archives of Plastic Surgery Vol.17 No.6
Resurfacing the extensive midface scar is a real surgical challange. Many types of pedicled flaps as well as full thickness skin graft have been applied, but the results were not satisfactory : the heavy, terrible scar and poor color matching resulted from the course of the wound healing.For a girl presented postburn scar in the midface, forehead, and upper cervical region were expanded tissue by the concept of visor flap. The upper visor flap covered the midface from the level of lower eyelids to the level of caudal end of nose, and the lower visor flap covered the midface from the level of upper lip to the lower cheeck. The result was acceptable ; good color match, good texture,and minimal scar, especially the scamless face resurfacing on the midline.
흉요추 골절에서 Fixateur Interne를 이용한 치험 보고
김병직,안종국,김용욱,임영,강석 인제대학교 1988 仁濟醫學 Vol.9 No.2
흉요추부 골절 치료에서 종래에 사용해 오던 기구들의 단점을 보완하여 두세 추체만 고정하고 내고정물의 이탈 등의 합병증을 막을 수 있는 척추 내고정물들이 최근 많이 고안되었다. 이런 장점을 가진 내고정물 중에서 골절 정복이 용이하고 기술적으로 간편한 Fixateur Interne를 흉요추 골절 2례에서 적용하여 만족할만한 결과를 얻었기에 이를 문헌 고찰과 함께 보고하는 바이다. Several transpedicular fixation devices with short fixation area, of which the functional results regarding spine mobility and reliable stability are superior to those obtainable with long range fixation system, have been presented recently. Fixateur Interne fulfills this requirement and offers a further advantage : the initially long ends of the Schanz screws permit the reduction of a single vertebra by direct means. We treated two cases of thoracolumbar spine fractures using "Fixateur Interne" which proved to be not only a stabilizing system but also a useful tool for thoracolumbar fractures.