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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.
안재우,마창익,안종관 대진대학교 1999 大眞論叢 Vol.7 No.-
Electrodeposition experiments of gradually composite alloys were conducted using rotating disc geometry. Effects of rotating speed and potential on the composition of alloys were studied. Mechanical properties and corrosion resistance of the gradually composite alloys were compared with those of the normally deposited alloys. Zinc content of Zn-Ni alloys increased as increasing disc rotation speed and voltage. Corrosion resistance and adhesion of the gradually composite alloys for all the tested alloys were better than the normally deposited ones.
안성훈,조명수,송재수,도진우,김종성,손인철 한국전통의학연구소 2002 한국전통의학지 Vol.12 No.1
This study was designed to investigate the location of Sin-Guel(CV_(8), 神闕) through literature research. We extracted the part about the location of Sin-Guel(CV_(8), 神闕) from ancient and modern oriental medical literature which were used commonly in clinic. The results were summarized as follows; 1. The location of Sin-Guel(CV_(8), 神闕) were generally recorded DangJeJung. 2. Sin-Guel(CV_(8), 神闕) placed in middle of linea alba. 3. Treatment effect of moxibustion on Sin-Guel(CV_(8), 神闕) were recorded as diarrhea, dropsy, prolapse of the anus, stomachache, paralysis etc.. 4. Acupuncture therapy on Sin-Guel(CV_(8), 神闕) is dangerous because of inflammation, it is suggested that acupuncture therapy may be possible if acupuncture therapy do not induce inflammation on Sin-Guel(CV_(8), 神闕).
Mixer-Settler를 이용한 연속공정에 의한 니켈과 코발트의 추출
안재우,안종관,이만승 대진대학교 첨단소재연구소 2001 첨단소재연구소논문집 Vol.4 No.-
Extraction behaviors of Co and Ni in hydrochloric acid solutions by Alamine336(Teritary amine) have been investigated in mixer-settler. The feeding aqueous solution contained 5.0g/L nickel and 0.7g/I, Co in 5.0M hydrochliric acid solution. The organic phase being used for extractant comprised 20 vol. % Alamine336(Teritary amine) in Xylene. The 10 mixer-settler units of count current type consist of 3 extraction, 2 scrubbing, 3 stripping and 2 washing sections. The extraction percent of Co was 99 % but Ni was not extracted during 3 steps. Ni co-extracted with co was removed in 2 steps of scrubbing section by 6M hydrochloric acid solution from organic phase. Over 92% of Co from organic phase was stripped by 0.1M hydrochloric acid solution in 2 volume ratio of organic and aqueous phase. After stripping, the organic phase that was washed by 3.0 M hydrochloric acid solution in 2 volume ratio of organic and aqueous phase could be recycled for the organic solution.
안종필,박주원,서재우 朝鮮大學校 建設技術硏究所 2007 建設技術硏究 Vol.27 No.2
Development of design method based on probability theory sublating discrepancy of definitive design standards in designing foundation structure is needed. This study develops uncertainties of resistance and load effect of foundation structures in order to introduce the concept of probabilistic design based on reliability into foundation structures, estimate reliability index suitable to foundation structures, compares and analyzes safety and durability performance and the results of research can be summarized as follows. Optimum safety radio of bearing power of pile foundation was estimated as 2.9613 according to interpretation of reliability and it was analyzed in a rational way compared to uniform safety ratio value based on conventional allowable stress design methods, and as a result of analyzing life cycle cost of foundation structures, it was confirmed that execution of maintenance and management strategy in repair and maintenance condition of safety evaluation grade B was most economical. In addition, prevention LCC/post LCC ratios of foundation structures for life cycle of 80 years were 60.54%, 54.58%, 52.27% and 49.29% at maintenance, repair, reinforcement and replacement respectively and prevention and maintenance strategy was more economical than post maintenance strategy. It is expected that the results of this study will be used as basic materials to build analysis techniques of reliability and economy of foundation structures through expansion of statistical data of foundation structures.
통계적 기법을 이용한 마이크로 스피커 다이아프램의 최적형상설계에 관한 연구
안찬우,홍도관,최재기,박진우 東亞大學校附設 生産技術硏究所 2007 生産技術硏究所硏究論文集 Vol.12 No.-
This study uses response surface methodology to explain correlations between the objective function and design variables, fractional factorial design and central composite design were carried out. The change of shape of diaphragm, thickness of diaphragm and voice coil weight based on fractional factorial design and central composite design are made. Therefore this study carried to decide design variables for minimizing 1st natural frequency and maximizing 2nd natural frequency of diaphragm using response surface methodology and screening(fractional factorial design), we showed improved design variables.
안재민,유헌우,장동식 한국경영과학회 2002 한국경영과학회 학술대회논문집 Vol.- No.1(1)
In this paper, a new semi-automated cyber character generating method is presented. Local edge detection tools extract face contour from graphic image files. Some graphic manipulation process detailed touch to obtain neat face contour. This method shortens the making process dramatically while maintaining the good quality similar to real face image. Some of the processed images are illustrated for clear explanation.
함구리 황산폐액으로부터 LIX84-Kerosene-Span80-H₂SO₄계 유화형 액막법에 의한 구리의 분리 농축
안종관,안재우,신선명,김동진 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.4
The separation and extraction of copper from waste water solutions by the liquid surfactant membrane process using LM84 as an extractant and Span 80 as a surfactant were investigated . In extraction, the extraction rate of copper was greatly accelerated by the presence of sodium acetate and with the increase of pH in the aqueous feed solution. The optimum concentrations of LIX84 and Span 80 in the membrane phase were 7-10 vol. % and 2.5-3vol. %, respectively. Experiments also showed that the concentration ratio of copper was greatly enhanced with the decrease of the ratio of V_(e) and V_(w) and with the decreasing of A/O ratio. After the extraction process, the concentration of copper in the raffinate solution reduced to 1-2 ppm, and the concentration of copper in the internal aqueous solution increased to 20 gll. (Received February 11, 2004)
안재우,전채홍,안종관 대진대학교 1997 大眞論叢 Vol.5 No.-
In the fracture of materials, the art of fractography is well established. However there are few quantitative rules that related the morphology of the fracture surface to the properties of the material, particularly its resistance to fracture, or to the circumstances of the fracture, sudden and catastrophic, or gradual by fatigue, etc. Fractal geometry is used in order to these quantitative relation. Fracture surface is expressed by the fractal. The fractal dimension is related to the special feature of microstructure. And fracture profiles that are generated by midpoint displacement method are in aggrement with the measured profiles.
Ni-Zn-P 및 Fe-Zn-P 3원계 합금도금에 관한 헐셀 실험 연구
안재우,안종관 대진대학교 1995 大眞論叢 Vol.3 No.-
A experimental study on the electrodeposition of Ni-Zn-P and Fe-Zn-P alloy onto a steel has been carried out using a Hull-cell apparatus. The results show that the optinum current efficency of Ni-Zn-P and Fe-Zn-P alloy was 80mA/cm^(2), 120mA/cm^(2) respectively. And the desirable cell distance of Ni-Zn-P and Fe-Zn-P alloy was 6cm, 6.5cm. For the alloying of P, it was obtained that the optimum concentration of NaH_(2)PO_(2) was 20 g/ℓ.