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서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)
김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1
In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.
한의진단명과 진단요건의 표준화 연구 II (표준화 실례) : 2차년도 연구결과 중간 보고
양기상,최선미,최승훈,안규석,박경모,박종현,김성우,신승호,정우열,전병훈,고현,김정범,신상우,김성훈,김동희,권영규,엄현섭,장혜옥 한국한의학연구원 1996 한국한의학연구원논문집 Vol.2 No.1
The diagnostic requirements were suggested and explained regarding the systems of differentiation of symptoms and signs in the second year study of standardization and unification of the terms and conditions used for diagnosis in oriental medicine. The systems were as follows; - differential diagnosis according to condition of body fluid, differentiation of syndromes according to the state of qi and blood, differential diagnosis according to relative excessiveness or deficiency of yin and yang(氣血陰陽津液辨證) - differentiation of diseases according to pathological changes of the viscera and their interrelation - analyzing and differentiating of febrile diseases in accordance with the theory of the six channels(傷寒辨證) The individual diagnosis pattern was arranged by the diagnostic requirements in the following order : another name(異名), notion of diagnosis pattern, index of differentiation of symptoms and signs(辨證指標), the main point of diagnosis, analysis of diagnosis pattern(證候分析), discrimination of diagnosis pattern(證候鑑別), a way of curing a diseases(治法), prescription(處方), herb in common use(常用藥物), diseases appearing the diagnosis pattern(常見疾病), documents(文獻調査). This study was carried out on the basis of the Chinese documents and references.
산전 태아사망 환자에서의 Mycoplasma hominis와 Viridans streptococcus감염 1예
김윤숙,문성택,전섭,김종수,최승도,선우재근,배동한 순천향의학연구소 2007 Journal of Soonchunhyang Medical Science Vol.13 No.1
Mycoplasma hominis was isolated from a Bartholin's gland abscess 70 years ago, and ureaplasmas were isolated from the genital tract about 20 years later. Subsequently, reports incriminating mycoplasmas in the known adverse outcomes of pregnancy have been reported. Without doubt these genital mycoplasmas are able to invoke an inflammatory response and take part in the cascade of events that culminate in preterm birth. Amniotic fluid infection results in considerable pregnancy wastage in the pregnancy. In these cases Gram-positive organisms, especially group B streptococcus and Streptococcus viridans were the most common pathogens isolated. In our case, the patient has fever and vaginal discharge at 14+4 weeks gestation and two days after intrauterine fetal death was seen. The vaginal culture and sensitivity shown Mycoplasma hominis and Vihdans streptococcus. We experienced a case of Mycoplasma hominis and Viridans streptococcus infection in a patient with intrautehne fetal death and report with a brief review of literatures.
김영환,박정훈,김정섭,유현철,이봉섭,곽명화,우성훈,박승조 東亞大學校 環境問題硏究所 2005 硏究報告 Vol.27 No.1
This study was carried out to remove copper ion in case of activated carbon impregnated sulphur(ACS) dose and different pH using activated carbon impregnated sulphur that prepared from activated carbon at sulphur dioxide atmosphere. Removal copper ion concentration was increased as increasing the ACS dose when copper ion concentration was 10 mg/L. Optimum dose of ACS 13.3 g ACS/L and maximum removal efficiency was 93%. The results obtained from adsorption experiment in the condition of ACS optimum dose when the pH was 3, 4, 5 respectively was pH 5 was excellent.
김은정,박정훈,김정섭,유현철,이봉섭,곽명화,우성훈,박승조 東亞大學校 環境問題硏究所 2005 硏究報告 Vol.27 No.1
Spent pig bone was consist of hydroxyapatite. And then we thought that it have a possibility as a adsorbent. The preparation of bone char prepared from spent pig bone in this study. We study on the recycling possibility as a adsorbent is able to adsorb copper ion from their single aqueous solutions. The results are summarized as follows. Bone char that prepared from spent pig bone at 105, 400, 700℃. The adsorption removal efficiency of copper ion onto bone char as adsorbent was above 90% for 15 hours. Increase in the initial pH of the copper ion solution result in an increase in the copper ion uptake per unit weight of the adsorbent. Freundlich isotherm model was found to be applicable for the experiment data of copper ion. The results showed that spent pig bone can be used for the absorption of the copper ion.
ZVS-LC 및 LCC형 부하병렬 공진 DC-DC 컨버터의 특성해석
오경섭,남승식,김동희,노채균 영남대학교 공업기술연구소 2000 工業技術硏究所論文集 Vol.28 No.1
The proposed converter connected by two capacitors in parallel with switching devices. The converter reduce the switching loss and switching noise and voltage stress at switching instants. This paper describes the operating principle of the proposed LC and LCC-Type Load Parallel Resonant DC-DC Converter Using ZVS capacitors. The analysis of the proposed circuit are described of using the normalized parameters to be required in all the design steps. Also, the principle of basic operating and the characteristics of driving were estimated switching frequency and the parameter. And, the data fur designing got by the characteristic values example of the design's method was proposed. And, this paper conform a rightfulness of theoretical analysis by comparing a theoretical values obtained from simulation results and experimental values obtained from experiment using MOSFET as switching device.
초임계 유체 CO₂를 이용한 강황에서의 Curcumin 추출의 최적화
정승현,장규섭,김영종 한국산업식품공학회 2004 산업 식품공학 Vol.8 No.1
강황의 색소성분 curcuminoid의 주성분인 curcumin은 많은 생리활성이 보고 되고 있으나, 현재 유기 용매를 이용한 추출에 의존하고 있어 안전성이 문제시 된다. 따라서 본 연구는 유기용매에 대한 위험성이 적은 초임계 유체 추출을 통한 강황 중 curcumin 추출의 최적화를 수행하였다. curcumin 추출의 최적 조건을 도출하기 위하여 중심합성법(central composite design)으로 설계된 실험방법으로 반응표면 분석을 실시하였다. 이때 독립변수를 추출온도(X₁), 보조용매유속(X₂), 추출압력(X₃)로 설정하고 curcumin 함량을 종속변수(Y)로 하여 Y=-8.581270+0.220770X₁+1.176731X₂+0.036873X₃+-0.0026816X₁²-0.0000825X₃X₂-0.000096554X₃² 와 같은 회귀식을 도출하였다. 반응표면 분석결과 curcumin 추출량의 최고점은 온도 40.31℃, 압력 231.59bar, 보조용매유속 3.07 ml/min 조건이었고, 이때 curcumin 추출량은 1.9228%였다. Curcumin, the major yellow-colord pigment in turmeric(Curcuma long L.), was extraced by using supercritical carbon dioxide. Opimum extraction conditions were determined. Overall experiments were plaaned by central composite design and result were analyzaed by response surface methodology to find efffect of three independent variables, temperature(X₁), co-solvent flow rate(X₂) and pressire(X₃) on the yield of curcumin extrat(Y). Regression model optimiaed by response surface analusis was as follows Y=-8.581270 + 0.220770X₁+1.176731X₂+0.03683X₃+ -0.0026816X¹₂-0.013010X₂X₁-0.103353X₂²+0.000198X₃X₁-0.0000825X₃X₂-0.000096554X32. Optimum temprature, pressure and so-solvent flow rate for exracting curcumin from turmeric were 40.31℃,3.07㎖/min and 231.59bar, respectively and statistical maximum yield of curcumm was 1.922%.
李升圭,金鎭燮 한국경영과학회 1996 經營 科學 Vol.13 No.1
The purpose of this paper is to study the links between manufacturing strategy and change programs of manufacturing firms in Korea. The nature of our analysis is more descriptive than normative or confirmative. First, we investigate the linkage between manufacturing strategy, manufacturing capability, change programs and performance measurement systems. Secondly, we intend to explore an empirical typology of manufacturing strategy and change programs. The initial findings of the study are as follows: Linkage between manufacturing strategy and change programs of manufacturing firms was not apparent. Flexibility as a strategic priority is positively related to the innovative change programs. There are two distinctive strategies of manufacturing firms in Korea, namely, quality strategy and balanced strategy. We identified three types of change programs, which are incremental change, administrative innovation, and process innovation. Incremental change group has represented low factor score in the change program dimensions. The firms in administrative innovation group mainly depend on information systems and business reengineering. Korean manufacturing firms seem to pursue process improvement by trying simultaneously incremental change in the process, managerial process improvement, and a little bit of innovative change. Performance variable utilization of the firms are not significantly different along with manufacturing strategies and change programs. We found, however, learning and improvement performance dimension is significantly related to flexibility variables. Process innovation group marked high score in usage of learning and improvement indices. The findings of his study seem to have various implications on realigning the manufacturing strategy, change programs, and performance systems in Korean firms.