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육가공용 향신료의 위생화를 위한 감마선 및 전자선 조사 효과 비교
김병희,김현주,윤요한,신명곤,이주운,Kim, Byung-Hee,Kim, Hyun-Joo,Yoon, Yo-Han,Shin, Myung-Gon,Lee, Ju-Woon 한국축산식품학회 2010 한국축산식품학회지 Vol.30 No.1
This study evaluated the effects of gamma ray and electron beam (E-beam) to improve the safety of spices for meat processing. The spices (garlic powder, curry powder, turmeric powder, black pepper, white pepper, oregano, parsley, laurel leaf powder, basil, and rosemary) were irradiated by gamma ray and E-beam at 0, 2, 4, 6, 8, and 10 kGy. Total bacterial populations were then enumerated on total plate count agar, and bacteria isolated from the samples were identified by polymerase chain reaction (PCR). In addition, $D_{10}$ values for Bacillus cereus and Staphylococcus aureus inoculated in spices was determined, and the Ames test was conducted for genotoxicity analysis. The contaminated total bacterial populations in spices ranged from 1.5 to 3.8 Log CFU/g, and most of identified bacteria were Bacillus spp., and Staphylococcus spp. However, the bacterial populations decreased below the detection limit (2 Log CFU/g) after irradiation at 4 kGy except for parsley, which required 6 kGy in gamma ray and 8 kGy in E-beam to decrease total bacterial populations below detection limit. $D_{10}$ values were also higher (p<0.05) in E-beam treated samples than gamma-ray treated samples. No genotoxicity was observed in both conditions with and without metabolic activation. These results indicate that gamma ray (>4 kGy and <6 kGy) could be more useful to improve food safety of meat processing spices compared to E-beam.
일부 농촌지역에서의 Carbamate 농약 폭로도의 추정 - 개인용 포집기와 Gas Chromatography 분석을 이용한 예비조사 -
김병희,김용식,최진수,Kim, Byung-Hee,Kim, Yong-Sik,Choi, Jin-Su 대한예방의학회 1990 Journal of Preventive Medicine and Public Health Vol.23 No.2
The exposures to carbamate pesticides (BPMC specifically) of agricultural workers were estimated by collecting pesticide in air by personal sampler and by analyzing with gas chromatography. Data revealed that the highest BPMC concentration in the aspirated air was $7.7mg/m^3$. Concentrations were generally higher in the group whose spray conditions were controlled than the group uncontrolled. Actual concentations were relatively lower than the values predicted theoretically. These findings suggest that personal sampler be useful in the estimation of pesticide exposure.
꽃을 이용한 천연염색 연구(I) - 괴화의 염색성 및 항균성 -
김병희,송화순,Kim, Byung Hee,Song, Wha Soon 한국의류산업학회 2000 한국의류산업학회지 Vol.2 No.2
The extracts drawn out from Sophora japonica by methanol was concentrated. Using this concentrate the silk was dyed, 400% conc. of dyeing material, $80^{\circ}C$ temperature of dyeing, 30 min time of dyeing. The K/S value of silk fabric was the most efficient for the simmordanting method. On the other hand, the amount of absorbed mordant the Cu-mordant was largest mordants. The surface colors on the dyed fabric depended heavily upon mordants or mordanting methods. For all cases, the value of the dyed fabric was dark. for the mordanting, color difference was distinct when using the Fe-mordant. Lightfastness of the color fastness was best in Cu-mordant. The Fe-, Cu- mordant showed the greatest antimicrobial activity.
김병희(Kim Byung Hee),엄철(Uhm Chul),최영석(Choi Young Suk) 강원대학교 산업기술연구소 2002 産業技術硏究 Vol.22 No.1
Optical fiber is indispensable for optical communication systems that transmit large volumes of data at high speed, but super-precision technology in sub-micron units is required for optical axis adjustment. We developed the automatic optical fiber by image processing and automatic loading system. we have developed 6-axis micro stage system for I/O optical fiber arrays, the initial automatic aligning system software for a input optical array by the image processing technique, fast I/O-synchronous aligning strategy, the automatic loading/unloading system and the automatic UV bonding mechanism. In order to adjust the alignment it used on PC based motion controller, a 10㎛ repeat-detailed drawing of automatic loading system is developed by a primary line up for high detailed drawing. Also, at this researches used the image processing system and algorithm instead of the existing a primary hand-line up and fiber input array and waveguide chip formed in line by automatic.