韓國人 成人 男子에 나타난 非 正常的인 脾臟의 1例

김종중,문정석,정주현 順天鄕大學校 1980 의대논문집 Vol.5 No.-

Authors took an abnormal spleen from a korean male adult cadava aged about 52 years in the Anatomy department of medical College, Chosun University. After dissection, we report views on autopsy and discussion on references. Particular matters were as follows 1. Spleen weight : 3,760gm; Speen length: 32,50cm ; Spleen width : 17,25cm, Spleen thickness : 11,50cm. 2. Spleen type : tetraheadral type.

혐기성 소화의 동력학적 해석 : 有機酸 構成比에 따른 嫌氣性 消化 Anaerobic digestion with Component ratios of organic acids

노기현,장성호,안종수,전기일,김수생 동아대학교 환경문제연구소 1994 硏究報告 Vol.17 No.2

This research on organic acid and its component ratio (H_(AC) : H_(pt) : H_(Bu)) mainly produced in acid formation steps of anaerobic treatment process. From comparing the above experimental results with digestion efficiency of acetic acid used as substrates, I can find the conclusion as follows : 1. Removal efficiency for component ratios of organic acid is 64.3-98.6%, 59.6-98.2 %, respectively, varied with HRT of 3-20 days. 2. For l0days of HRT, in order to investigate the effects of component ratio of organic acid, when its component ratio(H_(ac) : H_(pt) : H_(bu)) is 100 : 0 : 0, 50 : 25 : 25, 28 : 38 : 34 and 0 : 50 : 50(as COD), respectively, effluent concentration is 464mg/l, 666mg/l, 832mg/l and 1,148mg/l, respectively. 3. Component ratio of menthane gas for organic acids represents 55-70%, with variation o: HRT, 3-20days. 4. When the component ratios of organic acid(H_(ac) : H_(pt) : H_(bu)) is 50 : 25 : 25 and 23 : 38 : 34(as COD), methane production per COD removal for HRT of 3-20days is 0.27~0. 32, 0.21~0.30. 5. From the mass balance relationship, when the component ratios of organic acid is 50 : 25 : 25 and 28 : 38 : 34(as COD), methane production ratio, varied with HRT of 3days, 5days, l0days, 15days and 20days in 49.6%, 66.4%, 77.5%. 85.1% and 89.7%, respectively and 39.1%, 56.3%, 68.3%, 76.3%, 83.9%, respectively.

김치가 청장년 및 노인의 유리기 생성 및 산화억제에 미치는 영향

김종현,류재두,송영옥 부산대학교 김치연구소 2002 김치의 과학과 기술 Vol.8 No.-

This study was performed to investigate the effect of kimchi intake on free radical and oxidative substance production in young adults and the elderly. Daily kimchi intake by people in their twenties (n = 93, 20 to 29 years old) and over sixty-five (n = 143, over 65 years old) in M city were surveyed and blood was drawn to analyze the free radicals in their plasma. The average amount of kimchi intake by the subjects was 115.8 ± 91.7 g. The amount of kimchi intake of those in their twenties (106.1 ± 80.6 g) was significantly lower than that of those over sixty-five (125.5 ± 102.9 g, p < 0.05). Concentrations of total free radicals and OH radicals were 27 and 33% greater respectively, in those over sixty-five than in those in their twenties, indicating that more free radicals were produced by the older group. The concentration of GSH was not signiacantly different in the two groups, but that of GSSG in the over sixty-five age group was 53% greater than in the twenties group, which resulted in a 35% reduction in GSH/GSSG in the elderly group. TBARS concentration in the over sixty-five group was 26% greater than that of the twenties group. In order to see the effect of kimchi intake on free radical production, subjects in same age group were divided into two sub groups-the mean over and the mean under groups-according to the average amount of kimchi intake, which was 115.8 g. The total free radicals, the OH radicals, the GSH, the GSSG, and the GSH/GSSG in the twenties group were not significantly different in the two kimchi intake groups. However, those in the over sixty-five group were significantly different. The concentration of total free radicals and OH radicals of the mean over group were 21 and 26% lower respectively, than those of the mean ova. group (p < 0.05). The GSH and GSH/GSSG of the mean ova. groups were higher by 8 and 12%, respectively. The correlation coefficient between the kimchi intake and the total free radicals was -0.1862 (p < 0.05) and that for GSH/GSSG was 0.1861 (p < 0.05). In conclusion, the production of free radicals and oxidative substances increased with age, and kimchi seemed to retard this phenomena.

김치가 노화촉진쥐 간의 유리기 생성 및 항산화효소 활성에 미치는 영향

김종현,권명자,이소영,류재두,문갑순,최홍식,송영옥 부산대학교 김치연구소 2002 김치의 과학과 기술 Vol.8 No.-

본 연구는 김치가 노화 억제에 미치는 영향을 살펴보기 위하여 AIN-76마우스 식이에 배추, 갓김치, 갓배추김치를 각 동결건조 김치를 5%씩 첨가하여 만든 후 김치식이를 노화촉진쥐인 SAMP8에게 1년간 섭취시키면서 간의 노화관련 특성인 유리기 농도와 항산화효소계의 효소활성 변화를 살펴 보았다. 노화촉진쥐 간의 총유리기, OH radical, H_2O_2 그리고 TBARS모두 가령에 따라 증가되었으며, 간에서 생성된 유리기 농도와 TBARS 농도는 대조군에 비해 김치섭취시 유의적으로 감소되었다(p<0.05). 그러나 생성된 유리기를 제거하기 위한 SOD활성은 오히려 김치섭취군에서 유의적으로 증가되었으며(p<0.05), catalase와 GSH-px, GSH/GSSG의 비율도 김치섭취군에서 유의적으로 증가하였다(p<0.05). 따라서 김치섭취는 노화에 따라 발생되는 간의 유리기 및 TBARS 생성은 억제시키면서, 이를 제거하는 항산화계 효소는 활성화시켜 노화를 억제한 것으로 생각된다. 김치종류 중에서는 배추김치보다 배추갓김치와 갓김치가 유리기 생성 억제 및 항산화 효소 활성을 더욱 증진시킨 것으로 관찰되어 이는 첨가된 갓의 항산화물질 때문인 것으로 생각된다. This study was performed to investigate the effect of kimchi intake on antiaging characteristics in the brain of senescence-accelerated mouse (SAM) in terms of free radical production and anti-oxidative enzymes. Two hundreds twenty SAM (20 mice) were divided into four groups and fed kimchi diet for 12 months. Experimental groups were kimchi free AIN-76 diet (control) group, Korean cabbage kimchi diet (KCK)group, 30% mustard leaf added Korean cabbage kimchi diet (MKCK) group, and mustard leaf kimchi diet (MLK) group. Concentrations of total free radical, OH radical and H_2O_2 of control group increased up to 123%, 262% and 174% of initial value (p<0.05) after one year. Increase in free radical production in kimchi groups due to aging was decreased by kimchi feeding. Among kimchi groups. MKCK and MLK groups showed greater inhibiting effect against free radical production than KCK. The concentration of TBARS in the bruin of control group also significantly increased up to 362% of initial value as aged (p<0.05) and production of TBARS in kimchi groups were decreased. When the activities of Cu, Zn-SOD, Mn-SOD, GSH-px and catalase of kimchi groups were compared to those of control at the same experimental period, anti-oxidative enzyme activities of kimchi groups were lower than those of control (p<0.05). But GSH/GSSG in kimchi groups were higher compared to control. In conclusion, decrease in free radical production and increase in anti-oxidative enzyme activities were observed from kimchi groups suggesting that kimchi might have important role on retarding aging. Among kimchi variety tested in this experiment, MKCK and MLK seem to have greater effect on inhibiting free radical production and increasing anti-oxidative enzyme activities than KCK. Further study is needed to find out the mechanism of kimchi on retarding aging.

김치가 노화촉진쥐 뇌의 유리기 생성 및 항산화효소 활성에 미치는 영향

김종현,류재두,이한기,박정희,문갑순,최홍식,송영옥 부산대학교 김치연구소 2002 김치의 과학과 기술 Vol.8 No.-

본 연구는 김치가 노화와 직접적인 관련이 있는 유리기 생성 및 항산화 효소활성에 미치는 영향을 살펴보기 위하여 배추김치, 배추갓김치 그리고 갓김치를 식이중량의 5% 첨가하여 실험식이를 제조하여 이를 노화촉진쥐인 SAMP8에게 1년간 섭취시켰다. 총유리기, OH radical, H_2O_2농도 그리고 TBARS 농도 모두 가령에 따라 증가하였으며, 김치섭취시 유의적으로 감소되었다(p<0.05), 김치군에 있어서 생성된 유리기를 제거하기 위해 항산화계 효소인 SOD, catalase, GSH-px 그리고 GSH/GSSG는 모든 김치군에서 유의적으로 증가 하였다(P<0.05). 따라서 김치섭취는 먼저 가령에 의해 생성되는 유리기의 생성은 억제시키면서, 둘째 이를 제거하기 위한 항산화계 효소 활성은 더욱 활성화시키므로써 항노화 기능을 발휘한다고 생각된다. 김치종류 중에서는 배추갓김치와 갓김치가 배추김치보다 유리기 생성을 억제하고, 항산화계 활성을 증진시킨 것으로 보아 이들의 항노화 효과가 클것으로 생각된다. This study was performed to investigate the effect of kimchi intake on antiaging characteristics in the brain of senescence-accelerated mouse (SAM) in terms of free radical production and anti-oxidative enzymes. Two hundreds twenty SAM (20 mice) were divided into four groups and fed kimchi diet for 12 months. Experimental groups were kimchi free AIN-76 diet (control) group, Korean cabbage kimchi diet (KCK)group, 30% mustard leaf added Korean cabbage kimchi diet (MKCK) group, and mustard leaf kimchi diet (MLK) group. Concentrations of total free radical, OH radical and H_2O_2 of control group increased up to 123%, 262% and 174% of initial value (p<0.05) after one year. Increase in free radical production in kimchi groups due to aging was decreased by kimchi feeding. Among kimchi groups. MKCK and MLK groups showed greater inhibiting effect against free radical production than KCK. The concentration of TBARS in the bruin of control group also significantly increased up to 362% of initial value as aged (p<0.05) and production of TBARS in kimchi groups were decreased. When the activities of Cu, Zn-SOD, Mn-SOD, GSH-px and catalase of kimchi groups were compared to those of control at the same experimental period, anti-oxidative enzyme activities of kimchi groups were lower than those of control (p<0.05). But GSH/GSSG in kimchi groups were higher compared to control. In conclusion, decrease in free radical production and increase in anti-oxidative enzyme activities were observed from kimchi groups suggesting that kimchi might have important role on retarding aging. Among kimchi variety tested in this experiment, MKCK and MLK seem to have greater effect on inhibiting free radical production and increasing anti-oxidative enzyme activities than KCK.

CeO₂을 첨가한 PZT-PMN-PMT계 세라믹스의 특성

이종헌,박순태 동아대학교 공과대학 부설 한국자원개발연구소 1994 硏究報告 Vol.18 No.1

Addition effects of CeO₂ on physical characteristics of Pb(Mn, Nb, Mg, Te)-PZT system ceramics were investigated. The grain size decreased and the shapes of particles were more uniform with the addition of CeO₂. The coercive electric field(9500V/m), mechanical quality factor(2600) and bonding strength(1065㎏/㎠) were improved by addition of CeO₂ 0.2wt%. After repetition of a number of stress cycles, the degradation of k₃₃ was not found in this sample.

산도가 장관의 운동성에 미치는 영향

장석종,박해근,김광진,임현재 충남대학교 의과대학 지역사회의학연구소 1982 충남의대잡지 Vol.9 No.2

The effects of hydrogen ion concentration changes on the motility as well as patterns of motility to autonomic drugs was investigated in the isolated duodenum and ileum of rabbits. Motility was recorded on a Physiograph with force transducer by means of Magnus method in sodium lactate Ringer's solution at 37℃ The pH of the Ringer's solution used were nornal (pH 7.4), acidic (7.4-5.5), and alkaline(7.4-9.5), titrated by 0.01 N BCI or 0.01 N NaOH solution respectively. Acetylcholine and norepinephrine as autonomic drugs was treated at normal, acidic, and alkaline Ringer's solution. Obtained results may be summarized as follows. 1. Increased hydrogen ion concentration (or decreased pH) inhibited tie motility of duodenum and ileum and that was proportional to increment of hydrogen ion concentration. 2. Decreased hydrogen ion concentration(or increased pH) enhanced the motility of duodenum and ileum and that at was proportional to decrement of h drocen ion concentration. 3. Effect of acetvlcholine on the patterns of motility in duodenum and ileum was not altered by hydrogen ion concentration changes. 4. Effect of norepinephrine on the patterns of motility in duodenum and ileum was not altered by hydrogen ion concentration changes.

이종연료 층상분사를 이용한 디젤엔진을 NOx와 soot동시 저감에 관한 연구(제2보)

하종률,강병무,안현찬,이태원,윤수한 東亞大學校 2001 東亞論叢 Vol.38 No.-

To investigate the method of the simultaneous reduction of Soot and NOx, we developed a new conception for dual fuel stratified injection system in a Diesel Engine. Some parts of the injection system, ie. nozzle holder, delivery vale, were remodeled to inject diesel and methanol in order from one injector. The quantity of diesel and methanol was controled precisely by micrometers that were mounted at control lack of injection pump. The real injection quantity ratio of dual fuel was certificated by volumetric ratio at injection Quantity experiment. We could confirm the capability that soot and NOx simultaneously were reduced by diesel-methanol stratified injection from the results of combustion and exhaust characteristic.

保健事業 實態에 關한 調査硏究 : 忠南 瑞山郡 雲山面, 海美面 一部 Seu San Gun, Choong Chung Nam Do

李貞子,金顯光,洪鍾寬 순천향의과대학 1979 Journal of Soonchunhyang Medical Science Vol.2 No.4

保健事業 實態에 關한 調査硏究

李貞子,金顯光,洪鐘寬 순천향대학교 1996 Journal of Soonchunhyang Medical Science Vol.2 No.4