農村住宅改良에 關한 硏究

高凰京,李因敦,金三純,安容泰,朴性五 서울여자대학교 1976 서울여자대학논문집 Vol.- No.5

하악과두에 발생한 호산구육아종

최문경,허경회,이원진,오성욱,이삼선 대한구강악안면방사선학회 2008 Imaging Science in Dentistry Vol.38 No.1

The present study reports a case of eosinophilic granuloma of the mandibular condyle. Eosinophilic granulomas on the mandibular condyle are very rare, but there are several common clinical and radiographic presentations. The clinical presentations involve swelling on preauricular area, limitation of opening, TMJ pain, etc. The radiographic presentations involve radiolucent lytic condylar lesion with or without pathologic fracture. Sometimes new bone formations are observed. The purpose of the article is to add new cases to the literatures.

초피 추출물의 수율 및 항균활성

임상빈,좌미경,송대진,고정삼 濟州大學校 産業技術硏究所 1995 산업기술연구소논문집 Vol.6 No.-

Extraction yields of Zunthoxylum piperiturn by organic solvents and supercritical carbon dioxide(SC-CO_(2)) with and without ethanol as a cosolvent, and antimicrobial activities of the extracts against Hucillus cereus were determined. Extraction yield by distilled water was the highest, 20%, while those by ethanol, ethyl ether and hexane were less than 3%. Extraction yield by SC-CO_(2) Lvith ethanol was 1.42 times greater than that by only SC-CO_(2). Ethyl ether- and ethanol-extracts had potent antimicrobial activities against B. cereus. Extraction yield by SC-CO_(2) with ethanol showed almost the same degree of microbial growth inhibition as that by only SC-CO_(2).

초피 추출물의 수율 및 항균활성

임상빈,송대진,좌미경,고정삼 濟州大學校工科大學産業技術硏究所 1995 尖端技術硏究所論文集 Vol.6 No.-

초피를 유기용매 및 초임계이산화탄소와 보조용매로서 에탄올로 추출하여 각각의 추출수율을 측정하고, 이들 추출물들의 항균활성을 검색하였다. 유기용매별로 추출하여 각각의 추출수율을 측정한 결과, 증류수인 경우 20%로서 가장 높았고, 나머지 헥산, 에테르, 에탄올인 경우 3%이하로 매우 적었다. 또한 추출 용매로 초임계이산화탄소-에탄올을 병용했을 때 초피의 추출수율과 용해도는 초임계이산화탄소만을 사용했을 때보다 1.4배 이상 높았다. 용매별 추출물들의 항균성을 검색한 결과 모든 추출물들이 B.cereus에 대해 항균성을 나타내었는데, 특히 에탄올, 에테르 추출물들의 항균성이 더 큰 것으로 나타났다. 초임계이산화탄소-에탄올 추출물은 초임계이산화탄소만을 사용한 추출물과 거의 동일한 항균성을 나타내었다. Extraction yields of Zanthoxylum piperitum by organic solvents and supercritical carbon dioxide(SC-CO₂) with and without ethanol as a cosolvent, and antimicrobial activities of the extracts against Bacillus cereus were determined. Extraction yield by distilled water was the highest, 20%, while those by ethanol, ethyl ether and hexane were less than 3%. Extraction yield by SC-CO₂ with ethanol was 1.42 times greater than that by only SC-CO₂ Ethyl ether- and ethanol-extracts had potent antimicrobial activities against B.cereus. Extraction yield by SC-CO₂ with ethanol showed almost the same degree of microbial growth inhibition as that by only SC-CO₂.

아황산가스가 흰쥐 허파조직내 Laminin 활서에 미치는 영향에 대한 면역조직학적 연구

배성만,정호삼,서윤경,백두진,김원규,윤지희 한양대학교 의과대학 2000 한양의대 학술지 Vol.20 No.2

Sulfur dioxide (SO_2), a kind of air pollutant, causes harmful damage to human body. In particular, inhalation of sulfoxide dioxide has been demonstrated to result in the injury to the upper respiratory duct. However, mechanisms by which SO_2 affects these tissues remain to be clarified. In the present study, to investigate the mechanism of SO_2 effects, the influence of SO_2 exposure was examined in terms of the injury of lung and the expression pattern of laminin in the basal lamina. The basal lamina is an important tissue for the regulation of internal respiration by composing of air-blood barrier. Sprague-Dawley rats repetitively exposed to a mixture of O_2 gas and SO_2 gas (250 ppm) for 30 minutes a day were sacrificed to observe the distribution of laminin in the alveolar septum as well as the morphological alteration of alveoli using immunohistological methods. The resutls we observed were as follows: 1. Alveoli from SO_2-exposed rats (for 5 days) were strongly stained with anti-laminin antibody, suggesting laminin expressed at the high level, at week 1 to 3 upon exposure to SO_2 2. At week 1 to 3 after exposure of rats to SO_2, alveolar septa were collapsed, leading to the reduction of alveolar volume along with morphological changes to irregular shapes. 3. At week 4 to 6 after exposure of rats to SO_2, alveoli were weakly stained with anti-laminin antibody, suggesting laminin expression was decreased during this period. 4. Rats sacrificed at week 7 upon exposure to SO_2 exhibited the expansion of new alveoli and the expression of laminin was partially recovered up to the intermediate level. Taken together, these results demonstrate that the expression of laminin was enhanced in the early phase, followed by downregulation in the late phase. Moreover, lung injury and resolution were correlated with the level of laminin. Thus, these results suggest that SO_2 suppresses the expression of laminin, which may be associated with the neo-generation of lung tissue.

한우거세우의 도체 육질등급과 쇠고기 이화학적 성질과의 상관관계

김대곤,성삼경,정근기 대구산업정보대학 2000 논문집 Vol.14 No.2

The study was conducted to investigate the effect of castration on the carcass grade of Hanwoo reared under the same feed and feeding condition. The carcass grading scores were measured by the Korean carcass grading standards. The results were compared with respect to Hanwoo by sex. Hanwoo steers showed significantly higher marbling degree than Hanwoo bulls. In Hanwoo steers, moisture content was lower while crude fat was higher than in Hanwoo bulls. Water holding capacity and L value of rib loin were higher in steers than in bulls. Collagen content was higher in bulls than in steers. The degree of hardness and chewiness in steers were significantly lower than those in bulls. Moisture contents and cooking loss of water were decreased where crude fat contents and water holding capacity were increased as marbling degree increased.

비가림 및 망사 시설재배가 참다래의 수체생육 및 과실품질에 미치는 영향

나양기,마경철,임동근,김병삼,임경호,김월수,이상현,박용서 全南大學校 農業科學技術硏究所 2001 農業科學技術硏究 Vol.36 No.-

This studies were conducted to investigate the effects of rain shelter and netting on the tree growth, fruit set fruit quality of kiwifruit (Actinidia deliciosa). In rain shelter and net house, shoot falling wasn't occurred by strong wind, and fruit set, fruit weight and also fruit malformation, side flowering increased at the same time. In rain shelter house the increment temperature forced blooming date and increased shoot length, leaf number and diameter but in net house these tendencies were not observed. Relative light intensity of rain shelter house was higher than that of net house with standard of field culture (relative light intensity: 100%). Soluble solid content was higher in rain shelter house, and acid content was higher in net house. With the effect of rain sheltering the occurrence of bacterial bloom rot and canker significantly decreased in both rain shelter and net house but insect injury increased. These data showed that rain shelter house is more suitable for kiwi fruit culture.

사격장 소음에 관한 연구

최형일,정경훈,정원삼,박싱일,김난희 조선대학교 환경공해연구소 2006 環境公害硏究 Vol.19 No.1

These days, the way of life and peoples' values have been changing in a developing society. The noise pollution in residential areas is a serious problem caused by the drift of population to cities, increased density, and heavy traffic. The firing ranges, which were built 20 or 30 years ago, are required facilities but are threatening to people. They are a source of anxiety as they jeopardize the residents' safety and destroy their living. Because of this, problems arise often. To reduce the problems between the residents and the military, the sound level around the firing range, the location of the range, and training times are investigated as the following 1. When a howitwer is fired, if there is no obstacle, at distances of 70m and 120m, the equivalent noise level is +116㏈(A)Leq and 98.6㏈(A)Leq, respectively. When the distance is 120m, the maximum sound pressure level is 123㏈(A)Leq for a period of one second. 2. When a 105mm howitwer is fired, if there is a hill as a natural sound barrier and the distance between the firing location and the target location is far more than 900m. the equivalent sound level is below 62㏈(A)Leq. 3. Upon firing, the sound pressure levels have equal range. The sound level is higher at 500Hz and lOOOHz. 4. The sound pressure level of the noise of explosive sound decreases between the shooting point and the target point. At distances of lOOOm, 1400m, and 1450m, the equivalent sound levels are 86.2㏈(A)Leq, 85.4㏈(A)Leq and 84.2㏈(A)Leq each, and the highest sound pressure levels are 121.4㏈(A)Leq, 116㏈(A)Leq and 114.3㏈(A)Leq for one second. 5. The explosive sound at the target point is similar to the noise at the firing point. The sound pressure level also has an equal range. Also. the sound level is higher at 500Hz and 1OOOHz than the others.

Streptozotocin-당뇨병 백서에서 당뇨병 이환기간에 따른 대동맥의 이완능 저하 및 Oxygen-Free Radical에 의한 이완능의 손상정도

김정국,김신우,김수동,서예경,하승우,김보완,백운이,권삼,강승완 경북대학교 병원 1997 경북대학교병원의학연구소논문집 Vol.1 No.1

목적: 당뇨병의 이환기간이 혈관의 내피세포 의존성 및 비의존성 이완능의 저하에 미치는 영향과 이환기간에 따라 oxygen-free radical(OFR)에 의한 동맥이완능의 손상정도에 차이가 있는지를 알아보고자 하였다. 방법: Streptozotocin(STZ)으로 당뇨병이 유도된 3 주 및 10주째의 백서군과 연령이 비슷한 정상 대조백서군의 적출 대동맥환을 norepinephrine으로 수축시킨 상태에서 내피세포 의존성 이완제인 acetylcholine(ACh) 및 비의존성 이완제인 nitroglycerine(NTG)에 대한 이완능을 즉정하여 비교 관찬하였다. 또한 xanthine과 xanthine oxidase의 혼합으로 생성된 H₂O₂에 대동맥환을 노출시킨뒤 역시 ACh과 NTG에 대한 이완능의 손상정도를 비교하였다. 결과: 3주및 10주째 당뇨병 백서의 대동맥환은 모두 대조군 백서의 대동맥환에 비해 ACh에 대한 이완능이 유의하게 감소하였으며 10주째 당뇨병 백서군에서의 ACh에대한 이완능의 저하는 3 주째 당뇨병 백서군에 비해 유의하게 심하였다.H₂O₂에 노출시킨 뒤 ACh에대한 이완능은 3주 및 10주 째 당뇨병 백서군에서 모두 대조군에 비해 유의하게 심한 손상을 보였으나 3주와 10주째 당뇨병 백서군 사이의 손상정도의 차이가 통계학적으로 유의하지는 않았다. 한편 3주 및 10주째 당뇨병 백서군 모두 NTH에 대한 대동맥환의 이완능은 대조 백서군과 별다른 차이가 없었으며 또 H₂O₂에 노출시킨 뒤에도 NTG에 대한 이완능의 손상은 관찰되지 않았다. 결론: STZ-당뇨병백서에서 대동맥의 이완능은 당뇨병에 이환된지 3 주째에 이미 ACh에 대한 내피세포 의존성 이완능이 선택적으로 저하되며 당뇨병의 이환기간이 길수록 이완능의 저하가 심하였고, OFR에 의한 동맥 이완능의 손상도 내피세포 의존성 이완능에만 선택적으로 나타나나 이환기간에 따라 OFR에 의한 이완능 손상정도에는 뚜렷한 차이가 없음을 시사하고 있다. Objectives: Diabetes mellitus produces histological evidence of endothelial as well as changes in vascular function in experimental animal. Oxygen free radicals interfere with of destroy endothelium-dependent relaxation in normal and diabetic blood vessels. The present study was investigated whether the duration of diabetic state can affect the severity of impairment in endothelium-dependent and/or independent relaxation and the sensitivity to oxygen free fadical (OFR)-induced damage in diabetic rat vasculature. Methods: The relaxative responses of aortic ring precontracted with norepinephrine in vitro to cumulative concentrations of acetylcholine (ACh) and nitroglycerine (NTG) were conducted in 3- and 10- week streptozotocin (STZ)-diabetic rats and agematched controls. After exposure to H₂O₂generated by mixing xanthine and xanthine oxidase, the degree of impairment in relaxative responses to ACh and NTG were also compared between 3- and 10-week diabetic rats. Results: The relaxative responses of aortic rings produced by cumulative concentrations of ACh were significantly lower in both 3- and 10-week diabetic rats than in the age-matched controls. The impairments of relaxative responses to ACh in 10-week diabetic rats were significantly greater than those in 3-week ones. After H₂O₂ exposure, the impairments of relaxative responses to ACh in 3- and 10-week diabetic aortas was also significantly greater than those in the control in the control ones. However, the severity of H₂O₂-induced damage in 10-week diabetic aortas was not significantly different than that in 3-week ones. In contrast, aortic rings of 3- and 10-week diabetic rats could still be fully relaxed by NTG, even after exposure to H₂O₂. Conclusion: These findings suggest that in SRZ-diabetic rat aortas selective impairment of endothelium-dependent relaxation to Ach can be found early even over a 3-week period after the induction of diabetes and the impairment may be greater in those with the longer duration of the diabetic state and that the impairment of the vascular relaxation by OFR is also selective to endothelium-dependent response but the sensitivity of OFR-induced damage may not be related to the duration of the diabetic state.

품종 및 성별에 따른 쇠고기의 지방산조성 비교

김대곤,성삼경,정근기,최창본 대구산업정보대학 1995 논문집 Vol.9 No.2

Dae Gon The study was conducted to investigate the effect of breed, sex on fatty acid compostition. Hanwoo and Holstein used, in the study were classified by sex. The results are summarized as follows ; Oleic acid and unsaturated fatty acids(UFA) percentages of total fatty acids in Hanwoo were higher than in Holstein, but palmitic acid and saturated fatty acids(SFA) were lower in Hanwoo. Oleic acid in steers of Hanwoo and Holstein tended to increase compared with bulls. Oleic acid in rib loin and top round were considerably higher in Hanwoo steers than in Holstein steers. In Hanwoosteers, oleic acid and UFA tended to increased while stearic acid and SFA decreased as marbling degree increased.