• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 1994년도 춘계학술대회 and 제3회 신약개발 연구발표회
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• pp.315-315
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• 1994

Recently, it was reported that Pfaffia paniculata, known as Brazil ginseng, caused occupational asthma. To assess a potential relationship between Korean ginseng and allergic reactions, total IgE in serum, allergologic parameter, was investigated. Serum total IgE were measured in 8 takers of ginseng for more than 5 yr, 4 subjects of weak constitution, 10 workers participated in the washing of fresh ginseng in factory and 7 control subjects, Blood samples were taken before and after the scheduled exposure to Korean ginseng, sera were kept frozen until assay. Total IgE levels after the scheduled exposure to Korean ginseng were not significantly different in each group and total IgE levels were not significantly different in the control subjects compared with those of other groups at the start of experiment and at the end of experiment. These results suggest that the exposure to Korean ginseng dose not affect significantly the IgE immune response in volunteers. No changes of levels of IgE on the exposure of Korean ginseng may represent additional evidence of the lack of antigenic potential of Korean ginseng.

• 한국환경보건학회지
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• 제16권2호
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• pp.89-95
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• 1990

This study was investigated to the energy recovery by the pyrolysis of waste tyre. the pyrolysis of the waste tyre was made by using the pyrolysis chamber for the gasification and the combustion chamber for the combustion of the pyrolysis gas. In batch system, the amount of waste tyre was put 150kg in the pyrolysis chamber and the proper air flow rate for the stable production of the pyrolysis gas was 0.95Nm$^{3}$ /min. the production time of the pyrolysis gas was stable above 210minutes, and the stable production rate was above 3.8Nm$^{3}$ /min. The production temperature of pyrolysis gas was 170$^{\circ}$C and combustion temperature of pyrolysis gas was 1,000$^{\circ}$C. The combustible component of washing gas in pyrolysis gas of waste tyre was CO, CH$_{4}$, $C_{2}H_{6}$ and $C_{3}H_{8}$, and total amount was 22.7%. Heat value of condensed material was 9,804Kcal/kg. The average concentration of air pollutants between cyclone and scrubber was CO 420.4ppm, SO$_{x}$ 349.8ppm. NO$_{x}$ 68.Sppm, HCl 24.4ppm and Dust 240.0g / Nm$^{3}$, respectively.

• 한국가정과학회지
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• 제9권3호
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• pp.63-68
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• 2006

Walnut colorants were extracted from walnut hull and their dyeing properties on cotton were investigated. Effect of dyeing conditions on dye uptake and effect of mordanting on dye uptake, color change and colorfastness were explored. Walnut colorants showed low affinity to cotton compared with wool and its isotherm adsorption curve was Freundlich type. It was considered that hydrogen bonding and van der Waal's force were involved in the adsorption of walnut colorants onto cotton. The dyed cotton showed YR color and there was no significant color change as pH changed. The dyed cotton showed generally high colorfastness except fastness to washing and light. Mordanting did not improve dye uptake and colorfastness, and not affect color of the dyed cotton significantly.

• Journal of Chest Surgery
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• 제25권6호
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• pp.611-615
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• 1992

Between July 1988 and August 1991, 8 cases of pulmonary resection for pulmonary asp-ergilloma had been performed in the department of thoracic surgery, Korea Cancer Center Hospital. The patients were consisted of 4 males and 4 females and were evenly distributed from fourth decade to sixth decade. Hemoptysis was the most common chief compla int. In chest roentgenogram, patch infiltration was noted in 4 cases[50%] and intracavi-tary fungus ball was noted in only 2 cases[25%]. A. fumigatus was identified pre-operatively in 2 cases by bronchoscopic washing and in 1 case by culture of pleural effusion, Eight pulmonary resections were done by 5 lobectomies, 1 segmentectomy, 1 wedge resection and 1 pneumonectomy, Postoperative pathologic findings showed that 6 cases [75%] were combined with bronchiectasis, 1 case with tuberculosis and 1 case with pneumonia. We experinced 1 case of postoperative pulmonary edema but there was no mortality case.

• Journal of Microbiology
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• 제34권4호
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• pp.384-386
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• 1996

Application of polyacrylamide gel (PAG) instead of agar to solid cultures of Streptomyces spp. was studied. The improved media were prepared by 1) gelling 20 ml of 5% acrylamide in a glass petri dish at room temperature, 2) washing by running water for more than 8 hr to remove residual reaction reagents, 3) drying at 5$0^{\circ}C$ for 12 hr to make a gel film, 4) autoclaving at 121$^{\circ}C$ for 15 min, and 5) swelling gel for about 4 hr by adding sterile liquid medium. In PAG media there were no differences from the observation of morphological characteristics showing during the cellular differentiation on agar media, whereas the ability to utilize carbohydrates differed somewhat from agar media. Agar media thus were little favorable for biochemical tests which the growth was determined depending on the formation of colony, but washed PAG was superior to serve as a solidifying agent.

• 한국표면공학회지
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• 제24권1호
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• pp.1.2-1.2
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• 1991

The formation of managanese ferrite has been performed to investigate some properties according to the variation of compositions, pH, current density by electrolysis. It has been found that the amount of oxidized weight of anode were increased with increasing current density. The amount of oxidized weight of anode were most in pH10. As the result of X-ray diffraction Mn Fe2O4 crystal composition in pH13. When the particles of Mnx Fe3-x O4 were heated at 30$0^{\circ}C$, it has been shown typical MnFe2O4(JCPDS Card No. 10-319) in X-1 composition. As the result of SEM observation, the size of MnFe2O4 particles were about 0.1$\mu\textrm{m}$, the shape of particles were spherical type. According to the above mentioned experimental condition, 0.1-0.5$\mu\textrm{m}$ sub-micron particles of manganese ferrite were formed from the wasted manganese dry cell, through washing longrightarrow reduction longrightarrow electrloysis.

• 한국표면공학회지
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• 제25권1호
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• pp.1-7
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• 1992

The formation of manganese ferrite has been performed to investigate some properties according to the variation of compositions, pH, current density by electrolysis. It has been found that the amount of oxidized weight of anode were increased with increasing current density. The amount of oxidized weight of anode were most in pH 10. As the result of X-ray diffraction Mn Fe₂O₄ crystal composition in pH13. When the particles of Mn/sub x/ Fe/sub 3-x/O₄ were heated at 300℃, it has been shown typical Mn Fe₂O₄(JCPDS Card No. 10-319) in X=1 composition. As the result of SEM observation, the size of MnFe₂O₄ particles were about 0.1㎛, the shape of particles were spherical type. According to the above mentioned experimental condition, 0.1-0.5㎛ sub-micron particles of manganese ferrite were formed from the wasted manganese dry cell, through washing → reduction → electrloysis.

• 한국식품조리과학회지
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• 제17권5호
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• pp.478-482
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• 2001

This experiment was carried out to clarify the effect of frying temperature and gelatinization method on the quality of popped rice for Salyeotgangjung. Frying at 220$^{\circ}C$ or 230$^{\circ}C$ gave a good expansion and score of sensory evaluation. But the frying oil began to smoke at 230$^{\circ}C$. There was no significant difference in the quality of popped rices between the treatments of minimum gelatinization after washing rice and moderate gelatinization after soaking for 80 minutes at 30$^{\circ}C$. In conclusion, frying washed rice with minimum gelatinization at 220$^{\circ}C$ would be considered as the best method for making Salyeotganagjung.

• 복식문화연구
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• 제10권6호
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• pp.781-792
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• 2002

Microorganisms living in clothing cause damage to fabric as well as unhygienic conditions with unpleasant odor fur wearers. Removal or growth of microorganisms are affected by the conditions during washing and storage. The purpose of this research was to study the consumer's knowledge and habits in laundering with respect to microorganisms in clothing. For survey method, questionnaires were administered to 580 housewives, age of 20∼60s living in Seoul. Employing 479 respondents, the data were analyzed by using descriptive statistics. The results are as follows: The level of knowledge about microorganisms of clothing was high in general, but wasn't expert level. Many people had experienced damages of textiles, clothing and unpleasant odor due to microorganisms. Fabric softeners and bleaches were rarely used for disinfection but usually used for antistatic, whitening or removal of stains. There was no relationship between laundering habits, the knowledge of microorganism, and experience of clothing damage by microorganism.

• 한국안전학회지
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• 제11권4호
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• pp.79-83
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• 1996

In this study, in attempt to develop a new application technique of discharge plasma, we employed a kind of discharging method called SPCP ( short for Surface discharge induced Plasma Chemical Process). Applications of SPCP have been widely used for years. Compact ozonizers to deodorize household equipments like refrigerators we a part of such applications. We took advantages of the compactness and durability of the SPCP electrode to set up an experimental apparatus for decompositing vapor of aromatic hydrocarbons such as toluene, benzene and xylenes, which are major substances given off In painting or washing processes and aggravate working conditions. Results obtained from this study are summarized as follows. 1) Aromatic hydrocarbon vapors of up to 2,000ppm were almost thoroughly decomposed at the flow rate of 4ℓ/min or lower under the discharge with electric power of 400 Watts. 2) In dry air, as the decomposition progresses, tar-like substance deposits on the discharging areas, which deteriorated the decomposition rate in the end. This substance, however, was almost thoroughly removed by keeping discharge in dry air containing no solvent vapor.