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한국형 액체금속로에 대한 신뢰도 분석 방법에 관한 연구
정관성,이낙영 충남대학교 기초과학연구소 2002 忠南科學硏究誌 Vol.29 No.1
The reliability analysis methods for Korea Advanced Liquid Metal Reactors(KALIMA) are considered in this paper. KALIMA is a new type of reactors and different from the existing reactors. The methods of selecting and analysing the initiating failure events for a power inherently safety module in KALIMA are suggested. And the reliability physical methods for the passive system which is a chief safety system of KALIMA are also investigated.
토성에 따른 시호의 생육 및 Saikosaponin 함량
성낙술(Nak Sul Seong),김관수(Kwan Su Kim),소은희(Eun Hee Soh),채영암(Young Am Chae) 한국약용작물학회 1994 한국약용작물학회지 Vol.2 No.3
Bupleurum falcatum was cultivated in plots of different soil textures, which were sandy loam(SL), loam(L), and clay loam(CL). The growth characters of shoot and root parts in SL and L plots were better than CL one, and root yield was the most excellent in SL one. But the contents of total saikosaponins and methanol extract in its roots were the highest in CL plot. In any soil textures, one and two year old plants showed almost the same results in growth characters and saikosaponins contents. The growth and root yield of two year old plants were higher than those of one year old ones, but the contents of methanol extract and saikosaponins were lower. Plant characters were highly negative-correlated with the contents of saikosaponins and methanol extract.
Evaluation of risk factors of vaginal cuff dehiscence after hysterectomy
( Myung Ji Kim ),( Seong Min Kim ),( Hyo Sook Bae ),( Jae Kwan Lee ),( Nak Woo Lee ),( Jae Yun Song ) 대한산부인과학회 2014 Obstetrics & Gynecology Science Vol.57 No.2
Objective The purpose of this study was to evaluate risk factors of vaginal cuff dehiscence or evisceration according to the type of operation. Methods Medical records of 604 women who underwent hysterectomies at Korea University Anam Hospital between June 2007 and June 2011 were reviewed. They were allocated to six groups. The six types of hysterectomies included robotic hysterectomy (n = 7), robotic radical hysterectomy and node dissection (RRHND, n = 9), total laparoscopic hysterectomy (TLH, n = 274), laparoscopy assisted vaginal hysterectomy (LAVH, n = 238), laparoscopic radical hysterectomy and node dissection (n = 11), and abdominal radical hysterectomy (ARH, n = 63). The characteristics and outcomes of each groups were compared. Results There was no difference in the characteristics of patients between 6 groups. In total of 604 hysterectomies, 3 evisceration (0.49%) and 21 dehiscences (3.47%) occurred. Evisceration were found in RRHND (1/9, 11.1%), TLH (1/276, 0.36%), and ARH (1/63, 1.56%). Dehiscences occurred in TLH (15/274, 5.42%), LAVH (4/238, 1.68%), and ARH (2/63, 3.17%). In 169 cases of TLH with intra-corporeal continuous suture, 1 evisceration and 4 dehiscences occurred, whereas 11 dehiscences occurred in 105 TLH cases with vaginal continuous locking suture (2.96% vs. 10.47%, P = 0.02). Conclusion The incidence of vaginal cuff dehiscenceand eviscerationwas significantly higher in TLH than LAVH. The intra-corporeal cuff suture was superior to the vaginal suture to prevent the vaginal cuff complications in TLH.
송재윤 ( Jae Yun Song ),( Myung Ji Kim ),( Seong Min Kim ),( Hyo Sock Bae ),( Jae Kwan Lee ),( Nak Woo Lee ) 대한산부인과학회 2015 대한산부인과학회 학술대회 Vol.101 No.-
Objective: The purpose of this study was to evaluate risk factors of vaginal cuff dehiscence or evisceration according to the type of operation. Methods: Medical records of 604 women who underwent hysterectomies at Korea University Anam Hospital between June 2007 and June 2011 were reviewed. They were allocated to six groups. The six types of hysterectomies included robotic hysterectomy (n = 7), robotic radical hysterectomy and node dissection (RRHND. n = 9), totallaparoscopic hysterectomy (TLH, n = 274), laparoscopy assisted vaginal hysterectomy (LAVH. n = 238), laparoscopic radical hysterectomy and node dissection (n = 11), and abdominal radical hysterectomy (ARH. n = 63). The characteristics and outcomes of each groups were compared. Results: There was no difference in the characteristics of patients between 6 groups. In total of 604 hysterectomies, 3 evisceration (0.49%) and 21 dehiscences (3.47%) occurred. Evisceration were found in RRHND (1/9, 11 ,1%), TLH (1/276, 0,36%), and ARH (1/63, 1,56%), Dehiscences occurred in TLH (15/274, 5.42%), LAVH (4/238, 1.68%), and ARH (2163, 3.17%), In 169 cases of TLH with intra-corporeal continuous suture, 1 evisceration and 4 dehiscences occurred, whereas 11 dehiscences occurred in 105 TLH cases with vaginal continuous locking suture (2.96% vs. 10.47%, P= 0.02). Conclusion: The incidence of vaginal cuff dehiscenceand eviscerationwas significantly higher in TLH than LAVH. The intra-corporeal cuff suture was superior to the vaginal suture to prevent the vaginal cuff complications in TLH.
( Yung-taek Ouh ),( Hyun Woong Cho ),( Seong Min Kim ),( Kyung-jin Min ),( Sang-hoon Lee ),( Jae-yun Song ),( Jae-kwan Lee ),( Nak Woo Lee ),( Jin Hwa Hong ) 대한산부인과학회 2020 Obstetrics & Gynecology Science Vol.63 No.5
Objective This study aimed to investigate the clinicopathologic risk factors for type-specific persistence of high-risk human papillomavirus (hrHPV) and residual/recurrent cervical intraepithelial neoplasia (CIN) after surgical treatment. Methods Patients with CIN-2/3 who underwent conization or loop electrosurgical excision procedure (LEEP) at Korea University Hospital were enrolled. All patients underwent hrHPV testing and genotyping before conization or LEEP followed by both hrHPV genotyping and cytology. The significance of associations between patient characteristics and persistence of infection were assessed by multivariate logistic regression analyses. Results Among 398 women with pathologically confirmed CIN-2/3, 154 (38.7%) patients showed hrHPV persistence after surgical treatment. In multivariate analysis, high preoperative hrHPV load (P<0.05; odds ratio [OR], 2.063), presence of CIN-2 at treatment (P<0.01; OR, 2.732), and multiple hrHPV infections (P<0.001; OR, 4.752) were associated with hrHPV persistence. HPV 53 was the most likely to persist after treatment (24/43, 55.8%). The risk of residual/recurrent CIN-2/3 was higher in persistent infection with HPV 16 than other types (P<0.05). Menopause (P<0.001; OR, 3.969), preoperative and postoperative hrHPV load (P<0.05; OR, 2.430; P<0.05; OR, 5.351), and infection with multiple hrHPV types (P<0.05; OR, 2.345) were significantly related to residual/recurrent CIN following surgical treatment. Conclusion HPV load before treatment and infection with multiple hrHPV types were predictors of postoperative hrHPV persistence. HPV 53 was the type most likely to persist, but HPV 16 was the type that was most closely associated with residual/recurrent CIN-2/3.
제초성 Benzenesulfonyl urea계 화합물의 형태와 반응성
유성재,이상호,고영관,성낙도,Yu, Seong-Jae,Lee, Sang-Ho,Ko, Young-Kwan,Sung, Nak-Do 한국응용생명화학회 1996 Applied Biological Chemistry (Appl Biol Chem) Vol.44 No.1
The most stable stereo conformer in non substituted benzenesulfonyl urea, 1 was the II-keto form, which the molecule was intramolecular associated(H-bond) coformer between imide group and N atom on the Pyrimidine ring. The hydrolytic degradation of 2 derivatives were proceeds by nucleophilic addition reaction(p<0) with orbital controlled intermolecular interaction between LUMO with electron donating$(\sigma<0)$ groups of 2 and HOMO of water molecule. N-(4,6-disub. pyrimid ine-2-yl)aminocarbonyl-2-(1,1-dimethoxy-2-fluoro)ethylbenze nesulfonamides,3 and N-(4,6-disub. triazine-2-yl)aminocarbonyl-2-(1,1-d imethoxy-2-fluoro)ethylbenzenesulfonamides,4 we re synthesized and their herbicidal activities in vivo against bulrush (Scirpus juncoides.) were measured by the pot test under the paddy conditions And the structure activity relationships(SAR) were analyzed by the multiple regression technique. The results of the SAR suggested that the 3 and 4 derivatives indicated dependent on the hydrophobicity of the 4,6-disubstituents and the heterocyclo group, where the optimal value $((log\;P)_{opt.}=0.89)$ of hydrophobicity was 0.89. The pyrimidine substituents, 3 showed higher herbicidal activity than the triazine substituents, 4. Among them, 4,6-dimethoxypyrimidine substituent, 3a showed the best herbicidal activity. 제초성 비치환(H) benzenesulfonyl urea 분자, 1은 sulfonyl group 인접의 amino group과 pyrimidinyl group의 N원자 사이에 회합(H-결합)된 형태(II-keto)가 제일 안정하였으며 phenyl 치환$(R_2$ 및 $R_3)$유도체, 2는 전자를 밀수록$(\sigma<0)$ LUMO(ev.)는 음의 값으로 증가하여 물 분자의 HOMO(ev.)사이에 궤도 조절반응(p<0)에따른 전형적인 친핵 반응성을 나타낸다. N-(4,6-이치환-pyrimidine-2-yl)aminocarbonyl-2-(1,1-dimethoxy-2-fluoro)ethylbenzenesulfonamides, 3 및 N-(4,6-이치환-triazine-2-yl)aminocarbonyl-2-(1,1-dimethoxy-2-리uoro)ethylbenzenesulfonamide, 4 유도체의 4,6-이치환기(X 및 Y) 와 헤테로 고리의 변화에 따른 올챙이고랭이(Scirpus juncodies.) 에 대한 제초활성은 소수성$((log\;P)_{opt.}=0.89)$이 가장 큰 영향을 미치는 요인이었다. 또한, pyrimidine-치환체, 3이 triazine-치환체, 4보다 양호한 제초활성을 나타내었으며 dimethoxypyrimidine-치환체, 3a가 가장 큰 제초활성을 보였다.