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이장동(Jang Dong Lee),김성국(Sung Kuk Kim),손동석(Dong Seok Sohn),서정식(Jung Sik Seo),이철희(Cheel Hee Lee) 대한구강악안면외과학회 1996 대한구강악안면외과학회지 Vol.22 No.1
Solitary neurofibroma is not common in oral and Maxillofacial area The tumor is a benign, painless, slowly growing neoplasm originating in a nerve tissue and malignant changes are extremely rare. Solitary neurofibroma is radioresistant and recurrence rate seems to be low The treatment of Solitary neurofibroma is surgical excision In our hospital. Oe case showed a solitary neurofibroma in the mouth floor and the other case was solitary intraosseous neurofibroma. Intraosseous neurofibroma was being done biopsy and neurofibroma in the mouth floor was removed and showed good prognosis.
정사각 덕트 초임계 상태 이산화탄소 가스 냉각과정 중 2차 유동 특성 측정 연구
한성호(Seong-Ho Han),최영돈(Young-Don Choi),서정식(Jung-Sik Seo),김용찬(Young-Chan Kim),김민수(Min-Soo Kim) 대한기계학회 2008 大韓機械學會論文集B Vol.32 No.2
The carbon dioxide properties change sharply near the critical or pseudo-critical point in the heat transfer processes. The reduction in turbulent, convective heat transfer parameters observed in some supercritical data and in experiments with common gases can be due to property variation, acceleration, buoyancy or combinations of these phenomena, depending on the conditions of the applications. In this study, the measurement for the secondary flow driven by buoyancy was carried out on the supercritical carbon dioxide turbulent flows in the different boundary condition with the constant mass flow rate. The available measuring techniques were used to clarify the behaviour of any supercritical fluid. Laser Doppler Velocimeter (LDV) and a special device was used to measure the secondary velocity and turbulent characteristics of the supercritical flows.
임신 중기 원인불명 모체혈청 인간 융모성 성선자극호르몬이 상승된 임부에서의 임신 예후
박지용(Ji Yong Park),정진훈(Jin Hoon Chung),고수진(Su Jin Ko),박교훈(Kyo Hoon Park),서정식(Jung Sik Seo),유태한(Tae Hwan Yoo),조용균(Yong Kyoon Cho),최훈(Hoon Choi),김복린(Bok Rin Kim),이홍균(Hong Kyoon Lee) 대한산부인과학회 1998 Obstetrics & Gynecology Science Vol.41 No.11
Objective: Our purpose was to determine whether unexplained elevation in maternal serum human chorionic gonadotropin without abnormal elevation in matemal serum alpha-fetoprotein (MSAFP) in the second trimester may be associated with adverse pregnancy outcomes. Methods: Between January 1997 and December 1997, we evaluated 906 pregnant women undergoing second trimester triple marker screening tests who delivered at our hospital. Multiple pregnancy, fetal anomaly, intrauterine fetal death before 20 completed weeks of gestational age, insulin dependent diabetes mellitus and maternal serum alpha-fetoprotein level greater than 2.0 multiple of the median (MoM) were excluded fiom the study. Seventy-two women with hCG level greater than 2.0 MoM were included in the study group while 809 women with hCG level less than 2.0 MoM served as the control group. Adverse pregnancy outcomes were obtained from hospital delivery records and neonatal records. Statistical analysis were performed by students t-test and chi square test. Results: Women with unexplained elevation of human chorionic gonadotropin level showed increased risks for intrauterine growth retardation (P<0.01) and pregnancy induced hypertension (P<0.05). There were no significant differences between study and control groups with respect to preterm delivery, placental abruption, fetal anomaly and intrauterine fetal death. Conclusion: Unexplained elevation of human chorionic gonadotropin in the second trimester was associated with intrauterine growth retardation and pregnancy induced hypertension.
이철희,서정식,고말식,손동석,김성국 大韓顎顔面成形再建外科學會 1995 Maxillofacial Plastic Reconstructive Surgery Vol.17 No.3
With the use of antibiotics and improved dental care, osteomyelitis of the jaw is less common these days. But sometimes the management of osteomyelitis is more difficult because of appearance of resistant organisms to antibiotics. Treatment of the steomyelitis are incision and drainage, closed catheter irrigations, sequestrectomy, saucerization, hyperbaric ocygen therapy, and resection with or without bone graft. We experienced advanced osteomyelitis due to delayed treatment of left mandibular angle fracture. He have medical history of pschysoprenia. We decided to treat the patient with open reduction and closed cather irrigation. We achived reconsolidation of mandibular fracture accompanied by osteomyelitis by complete removal of inflammatory tissues, rigid fixation with miniplate and closed catheter irrigation.
최광수,임무혁,최종동,정현채,권광일,김영지,서정식 한국농화학회 1999 Applied Biological Chemistry (Appl Biol Chem) Vol.42 No.4
This study was carried out to clarify the microorganisms which participated in the fermentation of kanjang. The changes in the viable cell counts of total aerobic bacteria, lactic acid bacteria and yeasts for raw soybean, soybean during cooking, meju during cultivation, and kanjang mash during maturing were investigated along with the changes in components during those periods. Lactic acid bacteria that were found to be 6 × 10² CFU/g in raw soybean were disappeared after cooking process, but total aerobic bacteria were diminished from 1.9 × 10^6 CFU/g to 10² CFU/g. Aerobic bacteria of inner and outer parts of meju increased to more than 10^9 CFU/g. The higher viable cell counts of lactic acid bacteria in the inner parts of meju were observed than those in outer ones. On the contrary, significantly higher viable cell counts of yeasts in the outer parts of meju were found. Total nitrogen content and color density of kanjang increased by using meju with extended cultivation periods, No significant differences were observed in microbial counts between kanjang mash with aeration and non-aeration during kanajng mash maturing.
Bacillus subtilis var . globigii 종균접종 메주로 제조한 콩 품종별 간장의 품질 특성
최광수,최청,임무혁,최종동,정현채,권광일,김영지,서정식 한국농화학회 1999 Applied Biological Chemistry (Appl Biol Chem) Vol.42 No.4
This study was carried out to select the most suitable soybean cultivars for the quality kanjang preparation. Six cultivars of soybean, Taekwangkong, Kumjungkong #1, Sinpaldalkong #2, Hwangkeumkong, Danbaegkong and Danyeobkong, were used as the raw materials for kanjang preparations. Grain type meju was prepared by the inoculation of Bacillus subtilis var. globigii seed culture on the cooked soybean of respective cultivar and cultivation at 30℃ for 10 days. Two month matured respective kanjang mash, which was prepared by mixing meju and 20% salt brine in the ratio of 1 : 3, was separated and the liquid portions were used as kanjang samples for this work. The highest crude protein content of 47.5% was obtained from Danbaegkong cultivar among six soybean cultivars tested. High sugar soybean cultivars were found to be Kumjungkong l and Danbaegkong and the content 15.87% and 13.33% respectively. The highest total nitrogen(TN) content of 1.18% was shown from Danbaegkong kanjang. Although the major free organic acid in kanjang was found to be succinic acid, no significant differences in free organic acid and sugars content were observed among cultivars. The highest free total amino acids(TA) and glutamic acid(GA) content in kanjang was observed to be 3365 ㎎% and 734.44 ㎎% respectively from Danbaegkong kanjang. Danbaegkong cultivar soybean which was shown to contain the highest crude protein was found to be the most suitable one for the preparation of quality kanjang with high TN, GA content and GA/TA ratio.