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강석구,강신철 성균관대학교 기초과학연구소 1992 論文集 Vol.43 No.1
(3S, 1E)-1-Cyano-1-octen-3-ol, the key intermediate in the synthesis of coriolic acid and. lipoxin A, was synthesized from (2S, 3S)- or (2R, 3S)-1-cyano-2, 3-octanediol derived from L-tartaric acid or 2-deoxy-D-ribose. The key reaction is deprotonation-elimination of the cyclic sulfite or carbonate of (2S, 3S)- or (2R, 3S)-1-cyano-2,3-octanediol. 코리오르산이나 리폭신 A 합성의 중요한 중간체인 (3S, 1E)-1-시아노-1-옥텐-3-올을 L-타타르산이나 2-데옥시-D-리보스에서 유도될 수 있는(2S, 3S)-나 (2R, 3S)-1-시아노-2,3-옥탄디올에서 합성하였다. 이 합성에서 중요한 반응은(2S, 3S)-혹은 (2R,3S)-1-시아노-2,3-옥탄디올의 고리 슬파이트나 카보네이트의 탈양성자성 제거반응이다.
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유봉환,사승윤,강신철 崇實大學校 生産技術硏究所 1995 論文集 Vol.25 No.1
The diagnosis and monitoring system of abnormal cutting condition is necessary to realize precision machining process and factory automation, which are final goal of metal cutting. In order to develop this system, the image processing technique has been investigated in machining process. In this paper, the measurement system of tool wear using computer vision is designed to detect the wear pattern by noncontact and direct method and get the reliable wear information about cutting tool. We measured the area of the side and front part of the diamond core drill which is used in 40kHz ultrasonic vibration machine.
유봉환,사승윤,이명재,김광래,강신철 한국공작기계학회 1995 한국생산제조학회지 Vol.4 No.2
The diagnosis and monitoring system of abnormal cutting condition is necessary to realize precision machining process and factory automation, which are final goal of metal cutting. In order to develop this system, the image processing technique has been investigated in machining process. In this paper, the measurement system of tool wear using computer vision is designed to detect the wear pattern by non-contact and direct method and get the realiable wear information about cutting tool. We measured the area of the side and front part of the diamond core drill which is used in 40 kHz ultrasonic vibration machine.
Synthesis of (S)-1-Octyn-3-ol, A Chiral Building Block for Natural Product Synthesis
Kang, Suk-Ku,Kang, Sin-Cheol 성균관대학교 기초과학연구소 1990 論文集 Vol.41 No.1
프로스타글란딘, 아라치돈산 대사물질들, 코리오르산의 중요한 키랄 중간체인 (S)-1-옥틴-3-올을 L-타타르산에서 10 단계에 걸쳐 합성하였다. (S)-1-Octyn-3-01(1), a chiral building block for the synthesis of prostaglandins, arachidonic acid metabolites, and coriolic acid, was synthesized from L-tartaric acid in ten steps.
신성철 ( Sin Seong Cheol ),김윤구 ( Kim Yun Gu ),백현정 ( Baeg Hyeon Jeong ),임영환 ( Im Yeong Hwan ),여호명 ( Yeo Ho Myeong ),김응호 ( Kim Eung Ho ),김정아 ( Kim Jeong A ),이방훈 ( Lee Bang Hun ),강우헌 ( Kang U Heon ),김범 ( Ki 대한신장학회 2003 Kidney Research and Clinical Practice Vol.22 No.3
A 21-year-old male was presented with sudden headache, fever, petechiae and neck stiffeness. The diagnosis of meningococcal meningitis was confirmed by examination of cerebrospinal fluid. The clinical symptoms of the illness were improved after treatment of antibiotics. However the paient developed generalized edema, oliguria, azoternia, and heavy proteinuria in the recovery phas of illness. Low serum C3 level was also noted. A kidney biopsy was perfromed and showed the features of postinfectious glomerulonephritis and typical subepithelial humps on electron-microscopic examination. His sysmptoms and laboratory findings were improved, and C3 level re turned to normal range after conservative treatment. We suggest that a complement deficiency should be reled out in patients of glomerulonephritis developed during the recovery phase of meningococcal men ingitis. C3 nephritic factor detection and renal biopsy should be carefully considered in these patients. (Korean J Nephrol 2003;23(3):321-325
β2 교감신경 수용체 다형성이 아토피 및 혈청 IgE에 미치는 영향
이신형 ( Sin Hyung Lee ),심재정 ( Jae Jeong Shim ),강용구 ( Yong Koo Kang ),정혜철 ( Hye Cheol Jeong ),김경규 ( Kyung Kyu Kim ),권영환 ( Young Hwan Kwon ),김제형 ( Je Hyeong Kim ),이승룡 ( Sung Yong Lee ),이소라 ( So Ra Lee ),이 대한결핵 및 호흡기학회 1999 Tuberculosis and Respiratory Diseases Vol.46 No.6
Dental Care Utilization for Examination and Regional Deprivation
Kim, Cheol-Sin,Han, Sun-Young,Lee, Seung Eun,Kang, Jeong-Hee,Kim, Chul-Woung The Korean Society for Preventive Medicine 2015 Journal of Preventive Medicine and Public Health Vol.48 No.4
Objectives: Receiving proper dental care plays a significant role in maintaining good oral health. We investigated the relationship between regional deprivation and dental care utilization. Methods: Multilevel logistic regression was used to identify the relationship between the regional deprivation level and dental care utilization purpose, adjusting for individual-level variables, in adults aged 19+ in the 2008 Korean Community Health Survey (n=220 258). Results: Among Korean adults, 12.8% used dental care to undergo examination and 21.0% visited a dentist for other reasons. In the final model, regional deprivation level was associated with significant variations in dental care utilization for examination (p<0.001). However, this relationship was not shown with dental care utilization for other reasons in the final model. Conclusions: This study's findings suggest that policy interventions should be considered to reduce regional variations in rates of dental care utilization for examination.