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- 저자 : Ji Y. Jung(정지영) (검색결과 3 건)
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지평식(P. S. Ji),한운동(W. D. Han),임지혜(J. H. Lim),박은규(E. K. Park),정지영(J. Y. Jung),김기범(K. B. Kim) 한국조명·전기설비학회 2009 한국조명·전기설비학회 학술대회논문집 Vol.2009 No.5월
Earth parameters are essential to design and analysis of earth In this study, a algorithm to estimate earth parameter using artificial neural network(ANN) was proposed. Structures of the soil are grouped by using KSOM algorithm before estimation. Earth parameter is obtained by using BP algorithm. The effectiveness of the proposed algorithm was verified in the case study.
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녹차섭취와 운동에 의한 비만 청소년의 혈중 biochemical marker 함량 감소
Jae K. Yang(양재경),Ji Y. Jung(정지영),Seol J. Kang(강설중),Gang W. Cheong(정강원),Jong C. Kim(김종철),Seong K. Ko(고성경),So B. Jeong(정소봉) 한국생명과학회 2011 생명과학회지 Vol.21 No.2
녹차섭취와 유산소운동이 비만 남자중학생의 체중과 혈중 biochemical marker에 미치는 영향에 관하여 연구하였다. 체지방율이 25% 이상인 비만 남자중학생 36명을 대상으로 대조군(n=9), 녹차처리군(n=9), 운동군(n=9)과 녹차와 운동 병행군(n=9)으로 분류하여, 운동은 주 5회 60분씩 12주간 실시하였고, 녹차는 녹차열수출물을 음용(녹차건중 1.5-1.7 g/일) 하였다. 대조군은 녹차처리군이 섭취한 양의 물을 섭취하였다. 실험 시작전과 12주 후의 혈중 TNF-α, IL-6, leptin, TG 및 HDL-C 함량을 측정하였다. 대조군을 포함한 모든 처리군에서 체중 변화는 없었으나 병행군은 복부지방률이 감소하였다. 대조처리는 TNF-α, IL-6 및 leptin 함량에 아무런 영향을 미치지 않았다. 녹차처리는 leptin (p<0.05)을 감소시켰고, TG (p<0.01)는 증가시켰다. 운동은 TNF-α (p<0.05), IL-6 (p<0.01) 및 leptin (p<0.05) 함량을 감소시켰다. 또한 녹차처리와 운동 병행은 IL-6 (p<0.05), leptin (p<0.05) 및 HDL-C(p<0.01) 함량을 감소시켰다. 이 결과는 녹차섭취나 운동은 젊은 비만 중학생의 혈중 염증 cytokine인 TNF-α, IL-6 및 leptin 함량 감소에 효과가 있었으나, 녹차섭취와 운동의 병행에 의한 synergy 효과는 없었다. The effects of green tea consumption and/or exercise for 12weeks on body weight and select biochemical markers in plasma were evaluated in obese adolescents with a fat ratio of greater than 25%. The subjects were randomly divided into a control group (n=9), green tea consumption group (n=9), exercise group (n=9) and green tea consumption with exercise group (n=9). Subjects in both green tea consumption group and green tea consumption with exercise group were given more than five cups of green tea extract in hot water (90℃) daily, equivalent to 1.5-1.7 g dry green tea, for 12 weeks. Subjects in both the exercise group and green tea consumption with exercise group participated in a training program (HRmax 60-70%, 60 min/day) for 12 weeks. Control subjects were only given water equal to the quantity of green tea being given to the subjects of green tea consumption. No significant changes body weights were seen in any of these treatments, but the waist to hip ratio was reduced with treatments of both green tea and exercise. The control group showed no significant changes in TNF-α, IL-6 and leptin levels. Green tea consumption reduced leptin (p<0.05), TNF-α, and leptin levels. Exercise lowered TNF-α (p<0.05), IL-6 (p<0.01), and leptin (p<0.05) concentrations. Meanwhile, a combination of green tea consumption and exercise lowered TNF-α, IL-6 (p<0.05) and leptin (p<0.05) levels. These results indicate that green tea consumption and exercise both had a positive effect on the reduction of inflammatory cytokines, TNF-α, IL-6 and leptin, in obese adolescents, but no synergistic effect on the reduction of these cytokines.
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유산양 유즙으로부터 분리된 세균의 분포 및 항균제 감수성 검사
김혜라 ( Hye Ra Kim1 ),정지영 ( Ji Young Jung ),김선득 ( Seon Deuk Kim ),박준영 ( Jun Young Park ),조인영 ( In Young Cho ),신성식 ( Sung Shik Shin ),손창호 ( Chang Ho Son ),오기석 ( Ki Seok Ok ),허태영 ( Tai Young Hur ),정영훈 ( Y 한국동물위생학회 2012 韓國家畜衛生學會誌 Vol.35 No.4
The aim of this study was to isolate microorganisms from half milk samples of dairy goats by California mastitis test (CMT) during the lactation period and to further investigate the susceptibility of isolated organisms to antimicrobial drugs. From a total of 235 half milk samples with CMT scores of 2 or above from 366 dairy goats distributed throughout Jeonnam province, microorganisms were isolated from 198 (83.5%) samples either singly (99.0%) or in combination (1.0%). The most prevalent microorganism was the coagulase-negative Staphylococcus spp., (44.4%, n=88) followed by Staphylococcus aureus (24.2%, n=48), Escherichia coli (11.1%, n=22) and Streptococcus spp. (7.6%, n=15). Isolated bacteria also included Bacillus spp. (2.5%, n=5), Pseudomonas spp. (2.5%, n=5), Micrococcus spp. (1.5%, n=3), Corynebacterium spp. (1.5%, n=3), Enterococcus facium (1.0%, n=2), Morganella morganii (0.5%, n=1) and Streptococcus agalactiae (0.5%, n=1). During the summer season, a high prevalence of all micro-organisms were observed in which Staphylococcus spp. (30.8%), Escherichia coli (8.6%), and Streptococcus spp. (5.6%) were among the most prevalent bacteria isolated. Staphylococcus spp. was also shown to be high in the winter (21.7%). In most samples, the presence of bacterial pathogens in goat milk led to the increase in the total somatic cell count (SCC). Most of the half milk samples of dairy goats with bacterial contamination showed SCC of ≥1×10(6) cells/ml (90.4%). Minor pathogens (11.4%) were more detected from milk samples with SCC of <1×10(6) cells/ml than major pathogens (4.1%), while the major pathogens tended to be higher from samples with SCC of ≥3×10(6) cells/ml. Susceptibility of these bacteria to 12 antimicrobial agents was tested by the Kirby-Bauer disc diffusion method. Results indicated that more than 90% of bacteria isolated from CMT 2+ dairy goat half milk samples were susceptible to trimethoprim/sulfamethoxazole, amoxicillin/clavulanic, enrofloxacin and cephalothin while they were resistant to tetracycline (44.7%).
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