• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.37 no.3
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• pp.110-116
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• 2024

Objectives : The purpose of this study is to report the case of olfactory disorder treated with Mahwanggachul-tang. Methods : A 58-year-old female patient began to smell the odor of swimming pool water during daily life at the October 2023. Symptoms get worse over time, all smells in daily life felt like bad odors from around January 2024. A brain CT scan was performed to identify other causative diseases, but no abnormal findings were diagnosed. The patient visited the clinic on April 1, 2024, and the patient received Korean medical treatment, including herbal medicine(Mahwanggachul-tang) and acupuncture. The severity of olfactory disorder was evaluated by NRS before and after administration of each treatment term. Results : The patient's symptoms improved and NRS changed 10 to 0. Conclusions : This case study showed an effectiveness of Mahwanggachul-tang treated on Olfactory disorder.

• 한국산학경영학회:학술대회논문집
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• 2006.06a
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• pp.147-170
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• 2006

Landfill gas is a mixture of methane and carbon dioxide produced by the bacterial decomposition of organic wastes, and it is considered to produce bad smells and pollute the environment. Economic trials and the developments of landfill gas, as an alternative energy resource, become known at the recent years, Resource development of landfill gas, which is managed by Korea up to now, is for the most part generation using gas engine. Medium BTU and High BTU are considered for the power generation as well. Most income of generation using gas engine is selling charge through a power plant. Expecting to manage the power plant for up to 10 years, the analysis based on revenue and expenditure shows when the unit price is 65.2 Won and the operating rate reaches 90%, it is possible to be into the black in 2012 without considering additional financial expense, It was also analyzed that the profit at a unit price of 85 Won under the anticipated rising unit price by the operating rate of 71% is larger than at the operating rate of 90% under limited unit price of 65.2 Won. It means to manage the power plant at a unit price of 65.2 Won and the operating rate must be higher than 90% for economic logicality. If we assume that the operating rate is 90% and it increases the unit price, the unit price must be higher than 85 Won for the management of a power plant. Analysis of changing a unit price, however, might be expected to have a gradual rise of prices. If there is no price rising and additional income related to CDM(Clean Development Mechanism) and emission trading upon Kyoto protocol, the management of a power plant using gas engine will get financial difficulties because of many operating expenses. However, since landfill gas is considered as a worthy energy resource for the guarantee of sustainable development and for the equity between recent generation and future generation, the development of it must be accomplished by the government's additional supporting and efforts under the interest of all stakeholder who are involved.

• Fire Science and Engineering
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• v.31 no.3
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• pp.97-105
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• 2017

Because asphalt is a solid at normal temperature and is not a hazardous material as stipulated in the Safety Management Act on Hazardous Materials, it is often recognized as having no risk of fire or explosion. On the other hand, it is as dangerous as flammable liquid because it is heated to $170-180^{\circ}C$ and stored in a storage tank. This study analyzed the risk of fire and explosion during the storage and handling of asphalt and the actual conditions of asphalt regulations by fire service organizations. Moreover, this study analyzed the domestic case of explosions in the production process of asphalt concrete (ASCON) and domestic and foreign cases of asphalt storage tank explosions. The analysis suggested that unlike Japan, Korea has no asphalt regulations in fire service organizations. Explosions can occur when ignition is delayed after fuel is sprayed on the dryer drum burner of the aggregates during the production of ASCON. A physical explosion can occur in the storage tank when environmental purification facilities suddenly work strongly to remove air pollutants or bad smells during the heating of asphalt in an asphalt storage tank. In addition, explosions can occur when fires such as welding is performed in the asphalt storage tank.

• Journal of Life Science
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• v.20 no.12
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• pp.1882-1888
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• 2010

To develop probiotics, a kind of Lactobacillus sp. was isolated from infant feces. The bacterium was identified as Lactobacillus rhamnosus through 16S rDNA sequence analysis. The strain was a facultative anaerobe which grew better in aerobic conditions. The bacterium lowered the pH of the culture solution down to 2.4 during 48 hr in the MRS medium. The strain inhibited the growth of 6 pathogens - S. aureus, L. monocytogens, S. typhimurium, E. coli O-157, V. parahaemolyticus and P. aeruginosa. When the Lactobacillus were fed to chickens, along with commercial feed, for one month, amounts of $H_2S$ and $NH_3$ in the feces of the chicken decreased to 50% and 70%, respectively, compared to those of control group chickens. Amounts of other bad smells such as $(CH_3)SH$, $(CH_3)_2S$ and $(CH_3)_2S_2$ were not much different in the Lactobacillus-fed chickens compared to the control group. On the other hand, egg weights of the chickens fed Lactobacillus were higher by about $5{\pm}1\;g$ than those in the control group.

• Journal of Nutrition and Health
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• v.34 no.2
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• pp.188-197
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• 2001

The nutritional status is important for the physical and mental development of children. Children should have sufficient nutrient intake, specially for the developmentally disabled children. In spite of the importance not much research has been done for their food habit and nutritional status. In this study, nutritional status of the disabled children were examined, the number of children studied is 50 children in Seoul between 5 to 6 years old, of whom 11 were austism, 5 were mentally retarded children and 8 were down\\`s syndrome. In order to get the data questionnaires about the food habit and other related factors, and two days food records were used. Their mean height was 108.8$\pm$21.0cm and their average weight was 19.5$\pm$4.6kg. The proportion of study subject with problems of the food habits was 36%, without keeping the regular meal time was 16%, and having snacks 2-4 time daily was 56%. They chose confectionery and fruits as their favorite snacks. The proportion of study subject with the sensitivity to the food colors and smells when they ate was 54%, unskilled using spoon and fork was 58%, and having medications was 20%. When we asked them whether their parents used the food as compensation means or not, 32% of them said that they did it often or sometimes. For the nutrient intake, energy was 1,703 $\pm$ 511kcal, carbohydrate was 242.5 $\pm$ 69.3g, protein was 61.3 $\pm$ 17.5g, lipid was 50.0 $\pm$ 24.4g. As the nutrient intake, it was compared with RDA. The intake of vitamin A and calcium were below RDA. Intake of protein was more than 150% of RDA. The proportion of subject with more than 125% of RDA was 72% for the phosphorus, 62% for the protein, 60% for the Vitamin A and calcium were below 0.75 and that of the others was above 0.75. The mean adequacy ratio(MAR) was 0.88. As we sum up the results of the research, the developmentally disabled children were shorter and lighter than the reference, were having medications, had excessive appetites, and had unbalanced diets. Also they had the bad food habit. As for the nutritional intake, vitamin A and calcium intake were a little less than RDA, and protein and phosphorus intake were too much. With the results of the above research for the disabled children, we can conclude that there are need to take some necessary measures for those children. To establish some programs measures for their better food environment, it is thought that much more research should be done in the future. (Korean J Nutrition 34(2) : 188-197, 2001)

• Korean Business Review
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• v.19 no.2
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• pp.69-94
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• 2006

Landfill gas is a mixture of methane and carbon dioxide produced by the bacterial decomposition of organic wastes, and it is considered to produce bad smells and pollute the environment. Economic trials and the developments of landfill gas, as an alternative energy resource, become known at the recent years. Resource development of landfill gas, which is managed by Korea up to now, is for the most part generation using gas engine. Medium BTU and High BTU are considered for the power generation as well. I\10st income of generation using gas engine is selling charge through a power plant. Expecting to manage the power plant for up to 10 years, the analysis based on revenue and expenditure shows when the unit price is 65.2 Won and the operating rate reaches 90%, it is possible to be into the black in 2012 without considering additional financial expense. It was also analyzed that the profit at a unit price of 85 Won under the anticipated rising unit price by the operating rate of 71% is larger than at the operating rate of 90% under limited unit price of 65.2 Won. It means to manage the power plant at a unit price of 65.2 Won and the operating rate must be higher than 90% for economic logicality. If we assume that the operating rate is 90% and it increases the unit price, the unit price must be higher than 85 Won for the management of a power plant. Analysis of changing a unit price, however, might be expected to have a gradual rise of prices. If there is no price rising and additional income related to CDM(Clean Development Mechanism) and emission trading upon Kyoto protocol, the management of a power plant using gas engine will get financial difficulties because of many operating expenses. However, since landfill gas is considered as a worthy energy resource for the guarantee of sustainable development and for the equity between recent generation and future generation, the development of it must be accomplished by the government's additional supporting and efforts under the interest of all stakeholder who are involved.