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민지원 ( Ji Won Min ),박선영 ( Seon Young Park ),이가람 ( Ga Ram Lee ),전영도 ( Young Do Jeon ),정자영 ( Ja Young Jung ),조영중 ( Young Jung Cho ),남홍우 ( Hong Woo Nam ) 대한내과학회 2013 대한내과학회지 Vol.84 No.3
Nitrobenzene is a poisonous agent, not commonly encountered in clinical practice, which belongs to the aniline dyes. Ingestion of nitrobenzene may cause methemoglobinemia, a condition in which the iron in hemoglobin is oxidized from the ferrous state to the ferric state, resulting in the inability to transport oxygen. A 41-year-old man presented with the clinical features of methemoglobinemia after drinking nitrobenzene. The patient was treated conservatively with intravenous methylene blue. We report a case of acute methemoglobinemia due to ingestion of nitrobenzene. (Korean J Med 2013;84:442-445)
조영중,박종훈,김상윤,Jo, Young-Jung,Park, Jong-Hoon,Kim, Sang-Youn 대한소아외과학회 2001 소아외과 Vol.7 No.2
A 37-week gestation female neonatal infant presented with lower abdominal distension. Ultrasonography showed a hydrocolpos, measuring $8.3cm{\times}6.9cm{\times}6.1cm$ in size and on perineal examination, vaginal atresia was noticed. On a follow-up ultrasonography performed 41 days after aspiration, the hydrocolpos was enlarged to $10cm{\times}8cm{\times}7cm$ in size, and compressed adjacent small bowel significantly with concomitant bilateral hydronephrosis. Temporary tubed vaginostomy was carried out with the provision of excellent drainage and easy access for contrast studies to outline the pathologic anatomy. We are planning to perform vaginal reconstructive surgery on her age around 2 years, when her vaginal structure might grow sufficiently for reconstructive surgery.
전신성 홍반성 루푸스 양상으로 발현된 Human Adjuvant Disease
정자헌(Ja Hun Jung),정성수(Sung Soo Jung),문희식(Hee Sig Mun),송용호(Yong Ho Song),조영중(Young Jung Cho),오광택(Kwang Taek Oh),김태환(Tae Hwan Kim),전재범(Jae Bum Jun),이인홍(In Hong Lee),배상철(Sang Cheol Bae),유대현(Dae Hyun Yoo) 대한내과학회 1998 대한내과학회지 Vol.54 No.2
Human adjuvant disease means the autoimmune disease or autoimmune disease like syndrome developed after plastic surgery using foreign body implantation. After first report of l by Miyoshi at 1964, a number of cases have been reported especially from Japan. Silicone has been known as biologically inert material, but a couple of side reaction and experimental data argue against such conventional idea. It is impossible to identify the exact role of implanted substance in the occurrence of autoimmune disease, but there are a few indirect evidences for adjuvant effect of silicone. The spectrum of HAD are as follows: unclassifiable connective disease like syndrome, rheumatoid arthritis, SLE, polymyositis, adult Still's disease, ITP, Hashimoto's thyroiditis, ctc. We experienced two cases of HAD manifesting as SI.E who had been injected with silicone fluid with for augmentation mammoplasty and report this with a review of the literature.
CFD를 활용한 수소-천연가스 혼합연료에 대한 피해영향 분석
강승규(Seung-Kyu Kang),방효중(Hyo-Jung Bang),조영도(Young-Do Jo) 한국가스학회 2013 한국가스학회지 Vol.17 No.5
본 연구는 3차원 위험성평가 시뮬레이션 툴(FLACS)을 활용하여 연료의 종류에 따른 위험성을 비교 평가하였다. 일반적인 고압가스 충전소 레이아웃을 활용하여 연료를 CNG, 수소, 30%HCNG로 하였을 경우 충전소에서 가스누출에 의한 화재?폭발 상황을 모사하여 피해영향을 비교 분석하였다. 그리고 가스별 누출제트에 의한 피해영향을 평가하였다. 동일한 조건에서 수소, CNG, HCNG가 누출되어 화재폭발이 발생할 경우 수소는 최대과압이 30kPa, HCNG는 3.5kPa 그리고 CNG는 0.4kPa의 과압이 측정되었다. HCNG의 과압이 CNG에 비해 7.75배 높게 측정되었으나, 수소에 비해서는 11.7%에 불과했다. 화염 전파에 있어서 수소는 매우 빠른 화염전파 특성을 가지는 반면 HCNG와 CNG는 수소에 비해 전파속도 및 전파거리에서 비교적 안전한 경향을 보였다. 제트화염에 의한 화염경계거리는 수소가 5.5m, CNG가 3.4m이고 HCNG는 CNG보다 약간 확장된 3.9m로 예측되었다. This study evaluated comparison of the risk according to the type of fuel by three-dimensional simulation tool(FLACS). The consequence analysis of fire explosion and jet-fire was carried out in the layout of a typical high-pressure gas filling stations using CNG, hydrogen and 30%HCNG. Under the same conditions, hydrogen had a 30kPa maximum overpressure, CNG had a 0.4kPa and HCNG had a 3.5kPa. HCNG overpressure was 7.75 times higher than the CNG measurement, but HCNG overpressure was only 11.7% compared to hydrogen. In case of flame propagation, hydrogen had a very fast propagation characteristics. On the other hand, CNG and HCNG flame propagation velocity and distance tended to be relatively safe in comparison to hydrogen. The estimated flame boundary distance by jet-fire of hydrogen was a 5.5m, CNG was a 3.4m and HCNG was a 3.9m.