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서울의 Penicillinase Producing Neisseria Gonorrhoeae 발생빈도(1996)
김재홍,황동규,전재홍,김윤석,김중환,김용준,이창균,임동진,김현수,조창근,김경문,박상훈,전우형,김희성,이호정,차명수,김갑형,김형석,김석우,황지환,박병순,권오상,이민수,송기훈,성소영,이인섭,부태성 대한화학요법학회 1999 대한화학요법학회지 Vol.17 No.2
Background : In recent years, gonorrhea has been panedemic and remains one of the most commom STDs in the world, especially in developing countries. Objective & Methods: For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the VD Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results: In 1996, 139 strains of N. gonorrhoeae were isolated, among which 53(39.0%) were PPNG. Conclusion: Our results suggests that after a peak of 74.3% in 1993, the prevalence of PPNG in Seoul is gradually declining.
고로슬래그시멘트를 사용한 다공성 황토콘크리트의 성능 평가
김황희,강수만,박종식,박상우,전지홍,이진형,차상선,박찬기,Kim, Hwang-Hee,Kang, Su-Man,Park, Jong-Sik,Park, Sang-Woo,Jeon, Ji-Hong,Lee, Jin-Hyung,Cha, Sang-Sun,Park, Chan-Gi 한국농공학회 2010 한국농공학회논문집 Vol.52 No.3
This study aims to evaluate a porous concrete using hwang-toh, blast furnace slag and blast furnace slag (BFS) cement instead of type I cement. The tests that were carried out to analysis the properties of porous hwang-toh BFS cement concrete included compressive strength, continuous void ratio, absorption rate, and pH value, repeated freezing and thawing test were conducted. Test results indicated that the performance in porous hwang-toh concrete are effective on the kaoline based binder materials. The pH value were shown in about 9.5 ~ 8.5. The compressive strength was increased and void ratio was decreased with increasing the kaoline based binder materials, respectively. The void ratio and compressive strength were in the range of about 21 ~ 30 %, 8 ~ 13 MPa, respectively. The increased in void ratio of more than 25 % is showed to reduce the resistance of repeated freezing and thawing. Also, the resistance of repeated freezing of thawing and the compressive strength of porous hwang-toh BFS cement concrete are independent with hwang-toh content and BFS cement amount. But, the void ratio was decreased with increasing the high volume hwang-toh contents (more than 15 %).
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.
황승국,우정열,강성수 경남대학교 공업기술연구소 2001 硏究論文集 Vol.19 No.-
본 논문의 목적은 ISO 9000 시리즈를 이용하여 대학평가시스템을 개발하는 것이다. 여기서는 품질 기능전개의 각 단계에서의 평가방법의 개념을 사용한다. 대학에서의 교육행정과 평가영역에 대한 가중치는 주어진다. 개발된 평가시스템을 사용하여 대학평가시스템 현재수준에 대한 평가점수를 얻을 수 있다. 이 방법은 대학평가시스템의 운영과 개선에 도움을 줄 것이다. 수치 예의 설명을 통하여 이 방법의 효과를 보인다. The purpose of this paper is to develop an university evaluation system using ISO 9000 Series. Here, we use the concept from the evaluation method in each stage of Quality Function Deployment. The weights for education and administration and the evaluation sector in university was given. Using the evaluation system developed, we can acquire the evaluated score for the present level of the university quality system. This method will help to manage and improve the university quality system. We show the efficiency of this method by illustrating numerical example.
황우신,황성주,박정숙,조정원 충남대학교 약학대학 의약품개발연구소 2012 藥學論文集 Vol.27 No.-
Nanotechnology affects on various aspects including medicine and pharmaceutics. This nanocrystal technology which transforms to nano-sized material is able to develop the innovational formulation strategy for poorly water-soluble drugs due to the change of physicochemical properties of drug. Scale-up methods using pearl milling or high pressure homogenizer was described and commercialized products based on nanotechnology were introduced in this manuscript.
황성래,곽재혁,김원기,박홍근,전상우 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)
Generally, shear wall system appears to resist the lateral loads, because high-rise buildings require satisfaction of building drift limit due to lateral loads. However shear wall system used mostly concrete, in this paper steel plate shear wall use to resist the lateral loads instead of reinforced concrete wall system. But, there is lack of research and understanding of steel plate shear wall system so that no real building of such system exists in Korea. This paper demonstrates stability and serviceability of steel plate shear wall by preliminary experimental test.
서울 강서지역 1개 대학병원에서 성인 급성 신우신염의 원인균과 항생제 감수성
황병연,이재갑,박대원,이연주,김성범,엄중식,손장욱,정희진,김우주,김민자,박승철 대한감염학회 2003 감염과 화학요법 Vol.35 No.5
목적 : 3년간 서울시 강서지역의 1개 대학병원에서 입원치료를 받은 성인 급성 신우신염 환자를 대상으로 원인균과 항생제 감수성을 조사하고, 향후 급성 신우신염의 초기 경험적 치료 항생제를 제안하고자 하였다. 방법 : 1999년 1월부터 2001년 12월까지 3년간 고려대학교 의과대학 구로병원에 상부요로감염으로 내원한 16세 이상 환자 229명의 의무 기록을 검토를 통하여, 인구학적 특성, 원인균, 항생제 감수성, 초기 항생제 사용 양상과 입원기간을 조사하였다. 결과 : 연구에 포함된 229명을 118명의 단순 신우신염군과 111명의 복잡 신우신염군으로 구분 하였다. 단수 신우신염의 평균 발생 연령은 38.2세와 복잡 신우신염 56.1세로 복잡 신우신염 환자의 연령이 유의하게 높았다(P<0.001). 양군 모두에서 원인균 중 E. coli의 분리율이 가장 높았으며 항생제 감수성 결과 ampicillin, trimethoprim-sulfame-thoxazole에는 높은 내성률을 보였고, ciprofloxacin, gentamicin, cefotaxime에 대한 감수성은 비교적 높았으나 복잡 신우신염의 경우 단순 신우신염에 비하여 ciprofloxacin, gentamicin에 대한 감수성이 다소 낮은 것을 확인할 수 있었다. 평균 입원 기간, 항생제 투여 기간에 있어서도 복잡 신우신염군에서 유의하게 길었다. 결과 : 본 연구의 결과 서울의 강서 지역에서 대학병원급에 치료 의뢰되는 단순 급성 신우신염의 치료에 있어 1차 항생제로 3세대 cephalosporin, aminoglycoside, quinolone 중 한가지를 초기 경험적 치료제로 사용을 고려하여야 할 것으로 사료된다. Background : The purpose of this study is to recommend the initial therapeutic regimen for adult patients with acute pyelonephritis (APN) according to the changes of antimicrobial susceptibility patterns of causative microorganisms isolated from patients with APN. Methods : We reviewed medical charts of 229 APN patients, who had been treated at Korea University Guro Hospital from 1st of January. 1999 to 31st of December, 2001. We investigated the demographic data, clinical findings, durations of hospital treatment, antimicrobial susceptibility patterns of the causative microorganisms and initial antibiotic regimens in patients with APN. Results : In this study, 229 adult patients with APN were classified into simple APN patients (118 patients, 51.5%) and complicated APN patients (111 patients, 48.4%). Mean age of patients with simple APN was 38.2±14.1 years old and that of patients with complicated APN was 56.1±14.9 years old. Mean age of patients with complicated APN was significantly higher than that of simple APN patients (P<0.0001). Escherichia coli was the most common microorganism both in simple APN (96.7%) group and in complicated APN (90.6%) group. Antimicrobial susceptibility of E. coli was at the low level of ampicillin (31%/20%) and trimethoprim-sulfamethoxazole (42.6%/34.2%) in each group. In contrast, ciprofloxacin (11.5%/22.7%), gentamicin (16.4%/22%) and cefotaxime (0%/8.2%) resistance remained at relatively lower level. In comparison of simple APN with complicated APN, ciprofloxacin and gentamicin resistances were higher in complicted APN group. Average duration of hospitalization (5.9±2.3 days/8.2±4.6 days) and duration of antibiotic use (12.1±3.9 days/15.3±10.0 days) were significantly longer in complicated APN. Conclusions: The results of this study suggests that 3rd cephalosporin, aminoglycoside or quinolone antibiotic would considered as one of the initial therapeutic regimen for patients with simple APN in southwestern Seoul.
황우석,이상용 한국경영과학회 2003 한국경영과학회 학술대회논문집 Vol.- No.1(1)
ERP 시스템을 이미 보유한 기업이 비즈니스 확대와 전자상거래가 이루어지는 외적인 여건에 의해 인터넷으로 시스템을 확장할 경우 웹 기반의 ERP을 다시 구축하는 것은 시간적 경제적으로 합리적이라고 할 수 없다. 본 연구에서는 협력업체 혹은 고객 등 기업외부와 연결되는 접점 부분만을 웹 기술을 이용하여 시스템을 확장함으로서 주문관리, 전자구매 등의 필요한 기능을 수해하는 사례를 보여준다.
주축 런아웃이 절삭흔과 표면거칠기에 미치는 영향에 관한 연구
황영국,이춘만,임경진,하재용,신성우 한국공작기계학회 2006 한국공작기계학회 추계학술대회논문집 Vol.2006 No.-
The radial error motion of a machine tool cutter/spindle system is critical to the dimensional accuracy of the parts to be machined. This paper presents an investigation into spindle run-out effects on cutting mark and surface roughness. We experimented the effects of spindle run-out on surface roughness in flat-end milling by cutting AL 7075 workpiece in various cutting conditions. In order to analyze the effects of run-out on the surface roughness, the spindle's radial error motions was measured by mounting a sphere target onto the spindle as a reference. From the experimental results, it was found that spindle run-out makes a directive effects on surface roughness in flat-end milling.