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甲狀腺홀몬-處置 마우스에서 스트레스에 의한 腦 Noradrenaline代謝 및 血漿 Corticosterone値의 變動에 關한 硏究
洪起堵,金炯健,全普權 고려대학교 의과대학 1988 고려대 의대 잡지 Vol.25 No.3
The role of brain noradrenergic neurons in the suppressive activity of clonidine and bromazepam on the swim stress-induced increase of plasma corticosterone level was investigated in male mice pretreated with thyroxine, The obtained results were summarized as follows; 1. The plasma corticosterone level (P-CS) was significantly increased after the pretreatment with thyroxine, 4mg/kg/day for 3 days (T4-3d). And the P-CS was moderately increased by clonidine, 500ug/kg(CD) but markedly decreased by bromazepam, 10mg/kg (BA). 2. The increase of P-CS induced by swim stress at 20℃ (20-SS) was markedly suppressed by CD and BA, respectively. The 20-SS induced increase of P-CS in mice pretreated with T4-3d was not affected by CD but significantly suppressed by BA. 3. The increase of P-CS induced by swim stress at 4℃ (4-SS) was not affected by CD but markedly suppressed by BA. And the suppressive effect of BA was significantly attenuated by the pretreatment with 74-3d. 4. The decorticated brain contents of tyrosine (T), noradrenaline (NA), and 3-methoxy-4-hydroxy-phenylglycol (MHPG) were not significantly affected by 74-3d, 20-SS, and 4-SS, respectively. 5. CD significantly decreased brain MHPG and MHPG/NA ratio in normal and T4-3d pretreated mice. However, CD did net decrease brain MHPG and significantly increased brain NA in mice exposed to20-SS and 4-SS, respectively. 6. BA moderately decreased brain T in normal and T4-3d pretreated mice. But the brain content of T in mice exposed to 20-55 and 4-55, respectively, was not affected by BA.These results suggest that the suppressive effect of clonidine and bromazepam on the swim stressinduced increase of plasma corticosterone level may not be mediated by presynaptic regulation via alpha-2adrenoceptors of brain noradrenergic neurons.
洪起,福田 敎,金夆洙,梁根榮 한국브랜드디자인학회 2007 브랜드디자인학연구 Vol.5 No.1
The cluster analysis has been applied as a practical method to classify similarities of various designs, including package design, where the distance among the two coordinates evaluated numerically, from the image level of design factors, provides the criterion to classify the similarity. The coordinates have definite values. However, from the view-point of Kansei Engineering, it is more rational to define it on fuzzy logic on account of the fuzziness implicated in the image level of design factors. This paper proposes a new approach to classify the similarity of design, using the coordinates expressed with the expectation and standard deviation of the image level of design factors obtained from fuzzy logic.
Kiss & Ride Zone 설치에 따른 교통망 영향 분석
홍기만,백바름,김현명 한국도로학회 2013 한국도로학회논문집 Vol.15 No.5
PURPOSES: This research is a study on the changes in the road network of the surrounding area is installed according to the Kiss & Ride Zone. METHODS: Estimating the transportation mode of students by using the Metropolitan household Surveys(2006) and estimating the O/D by Kiss & Ride ratio with the estimated data, then being applied to a method of reducing the number of lanes for certain sections of the road which would be installed with Kiss & Ride Zone. RESULTS : The reason why it is different for delay resolving time and the affected roads as the Kiss & Ride percentage change, was the impact of the Kiss & Ride Zone’s installation position. CONCLUSIONS : The purpose of the study was to analyze the impact of the road network in accordance with the installation of Kiss &Ride Zone by using speed and queue delay resolving time, and it is a need to develop a quantitative evaluation technique which was using various indicators in impact analysis according to the installation of the traffic safety facilities in the future.