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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.
李富龍,田炳日,金有根 부산대학교 환경문제연구소 1991 環境硏究報 Vol.9 No.-
The temperature variations due to industrialization in Yangsan area are investigated using the 10 years(1980∼1989) temperature data and compared with those of Jinju. The major results are as follows: (1) The rates of increase of mean and minimum temperatures were more pronounced in Yangsan area than in Jinju area, and the increasing rates were always positive for every month. (2) There exists close correlation between the growth of population and increase of minimum temperature, and between the growth of population and the increase of mean temperature. Furtheromore, close correlations between the increase of those temperature and other industrial factors are also indentified.
0.1mm 급 우량계 개발에 관한 연구 : LOAD CELL 특성에 관하여 Characterictics of Load Cell
이부용,박병윤 대구효성가톨릭대학교 응용과학연구소 1997 응용과학연구논문집 Vol.5 No.-
The load cell was tested for development of 0.1mm raingage at room temperature for 13 days. Two kinds of load cell was tested. One has a capacity of 120gram with no load, the other has a capacity of 3000gram with 500gram loaded. The results are as follows. 1) The out put of load cell was effected mainly by temperature. 2) The load cell had good ability in measuring the amount of 0.1mm rainfall. 3) The load cell with a capacity of 3000gram didn't show the creep under 500gram loaded during 13 days.
중규모 바람장 해석을 위한 Fine Mesh Model의 구성
이화운,김유근,이부용,오은주 부산대학교 기초과학연구소 1995 부산대학교 기초과학연구소 연구논문집 Vol.15 No.-
To predict reasonably the movement and the concentration of the pollutants in the coastal area. A simulation model should be prepared considering detail topography with land-sea and the urban effects, and the resolution near the source. The explicit method can not be applied due to the unstability of the numerical calculation in high horizontal-grid resolution, while the ADI scheme satisfied with the high horizontal grid resolution and can be used in the fine mesh system which shows the detail topography, atmospheric flow. The ADI method which studied the high horizonal grid resolution was excellent. The two dimentional model used in the study using ADI method is proved as a reasonable model to predict the wind field in any small scale area including mountainous coastal urban area.
李富永,梁敏錫 慶尙大學校 1975 論文集 Vol.14 No.-
The roots of panax ginseng was first extracted with hot chloroform followed by hot methanol. The major of the methanol extracts of ginseng was fractionated by column chromatography and was identified by thin layer chromatography and infrared spectrophotometrically. It was realized that the isolated of methanol extracts is saponins. The saponins was hydrolysed in methanolic-hydrochloric acid solution at 60℃ and during 50 minitues contineously. The aglycone portions after hydrolysis was also identified by infrared spectrogram. Further, Chromatograms of the methanol-water phase of the hydrolysates showed that th~re was glucose by qualitative analysis and was identified the same quantity of the each growing district by quantitative analysis. These results suggests that the methanol extract contains several saponins.
이재영,서부일,황덕환,이인호,임용수 慶北大學校 師範大學 科學敎育硏究所 1999 科學敎育硏究誌 Vol.23 No.-
Talc has been used as mineral drugs in the oriental medicine to cure catharsis, dysentery, dry breast, poor micturition, chronic indigestion, etc. according to the 'Donguebogam' which had been published by Heo Jun in 1613. In the book there is a description of 'talc from Chungju is of good quality'. To investigate the description geologically and oriental medically, talc from Dongyang Talc Mine in the Chungju area was analysed and compared with that of Oriental Medical Hospital of Kyungsan University, which has MgO 31.65%, CaO 0.73%, SiO_(2) 60.04%, ignition loss 6.4% close to those of pure talc containing MgO 31.7%, SiO_(2) 63.5%, H_(2)O 4.8%. However, talc from Dongyang Mine with MgO 31.8%, CaO 0.51% and SiO_(2) 61.0% is closer to pure talc and contains less impurities (Fe_(2)O_(3) 0.8%). Ca and Fe may add medical effects to talc drug as in the case of actinolite. Formula (3) logα_(Mg)^(2+) = 11.89 - 2pH and (4) logα_(Mg^(2+)/α^(2)_(H)^(+)) = 6.6 - 1.33 logα_(H4SiO4) may be used as basic data to predict and examine soluble contents of talc drug for medical experiments.
Pd/ZrO₂系 촉매상에서 시클로 헥센 水素化에 미치는 CO 피독작용의 영향
李富永 慶尙大學校 1984 論文集 Vol.23 No.2
The CO poisoning effects for the catalytic activity of cyclohexene hydrogenation on ZrO2-supported palladium catalysts were carried out by kinetic study at temperature 283-323K. The poisoning due to preadsorbed coverage of CO, ?=0.40-0.45, drastically decreased about 80% the catalytic activities of 0.05, 0.3 and 1.0 wt% Pd/ZrO2 catalysts. In particular, the declination of the catalytic activity on 0.05 wt% Pd/ZrO2 was slow decreased at coverages greater than ?=0.45 and for the both regions of ?=0.06 and 0.56, the reaction order with respect to the hydrogen pressure shifted from 0.7 on the bare surface to 1.0 on the poisoned surface whereas the order with respect to cyclohexene showed a downward shift from 0.6 to 0, and the apparent activation energy was 28.5 kj/mol. Thus kinetic parameters are close to those observed in the reaction on Pd/a-Al2O3 catalysts. On the basic of such poisoning effects, the secondary effect was discussed from electronic viewpoint.
Pendant Crown Ethers 운반체를 이용한 에멀젼 액체막계에서의 Pb^2+ 분리
이종광,이부영,김종향,조문환 慶尙大學校 기초과학연구소 1992 基礎科學硏究所報 Vol.8 No.-
Acryloyl methyl benzo-18-crown-6 단위체는 '4-hydroxymethyl benzo-18-crown-6와 acryloyl chloride을 반응시켜 합성하였다. Poly(acryloyl methyl benzo-18-crown-6)는 벤젠용매하에서 AIBN을 개시제로하여 제조하였다. [0.001mole/L M(NO_3)_n(M^2+ =Na^+, Mg^2+, Ca^2+, Sr^2+, Ba^2+, Zn^2+, Cu^2+, Cd^2+, Mn^n+ 와 Pb^2+)]를 포함한 source phase와 거대고리 리간드 [acryloyl methyl benzo-18-crown-6와 poly(acryloyl methyl benzo-18-crown-6)]와 계면활성제 Span 80을 포함한 toluene 막 그리고 Li_4P_2O_7를 포함하는 receiving phase로 구성되어진 에멀젼 액체막계에서 source phase로 부터 금속이온들의 소멸속도를 연구하였다. 금속이온의 이동에 관한 실험에서, 각 혼합물로 부터 Pb^2+ 이온이 가장 높은 이동율을 나타내었다. Acryloyl methyl benzo-18-crown-6 was synthesized by reacting 4'-hydroxymethyl benzo-18-crown-6 with acryloyl chloride. Poly(acryolyl methyl benzo-18-crown-6) was prepared in benzene by using AIBN as an initiator. The disapperance of metal ions from source phase as a function of time was studied in emulsion liquid membrane systems comprised in an aqueous source phase [0.001mole/L M(NO_3)_n(M^n+ =Na^+, Mg^2+, Ca^2+, Sr^2+, Ba^2+, Zn^2+, Cu^2+, Cd^2+, Mn^2+ 와 Pb^2+)], a toluene membrane containing of the macrocyclic ligand[acryloyl methyl benzo-18-crown-6 and poly(acryloyl methyl benzo-18-crown-6)] and the surfactant Span 80, and an aqueous Li_4P_2O_7 receiving phase. In the experiment for metal ions transport using this emulsioning liquid membrane, the Pb^2+ ion transport was more higher than other metal ions.