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      • 韓國産 夜行性 맵시벌科(벌目: 벌亞目)의 分類學的 硏究

        이종욱,정종철,김기범,김정한,배지득,남상호 대전대학교 기초과학연구소 2002 自然科學 Vol.13 No.2

        영남대 생물학과에 소장되어 있는 표본과 2001년 4월~2002년 6월 사이에 채집한 표본을 대상으로 하여 한국산 야행성 맵시벌의 분류학적 연구와 출현 현황 및 숙주 관계의 분석을 실시하였다. 분류학적 연구 결과 Gauld(1970)가 영국산 야행성 맵시벌을 대상으로 한 연구에서 기록한 Mesochorinae아과, Tryphonin-ae아과, Ctenoplematinae아과, Ophioninae아과의 4아과외에 Metopinae (Metopius속)를 추가하여 한국산 야행성 맵시벌류는 총 5아과 13속을 기록하였다. 또한 한국산 야행성 맵시벌의 출현 현황을 분석한 결과 야행성으로 잘 알려진 Mesochorinae아과의 Mesochorus속, Tryphoninae아과의 Netelia속과 Ophioninae아과가 전체 야행성 맵시벌 증 95%를 차지하였다. 속별 출현현황을 살펴보면 Netelia속이 393개체가 출현하여 가장 많은 수를 나타내었으며 Ophi-on속, Mesochorus속, Enicopilus속도 전체 출현 분류군 중 높은 비중을 차지하였다. 월별 현황을 살펴보면 전반적으로 4월에서 11월 사이에 걸쳐 나타나는데, Op-hioninae아과는 5월과 7월에, Tryphoninae아과는 6월에 집중적인 출현 빈도를 보였다. 숙주의 분류군에 따른 야행성 맵시벌의 기생 양상을 살펴보면 대부분이 나비목을 대상 숙주로 하고 있으며 Mesochorinae아과와 Ctenopelmatinae아과는 벌목에도 많은 종이 기생하는 것으로 나타났다. 특히 Mesochorinae아과의 Cidaphus속은 위생 해충으로 분류되는 기생파리과(Tachinidae)에도 기생하는 것으로 나타나 위생 해충을 구제할 수 있는 천적 분류군으로 연구될 수 있는 가능성을 보였다. 숙주의 식성에 따라 살펴보면 부식성의 먹이를 섭식하는 부식성(saprophagus) 숙주, 곤충의 유충을 섭식하는 식충성(entomophagus)인 숙주가 소수 출현하였고 기생생활(parasite)을 하는 숙주도 다수 출현하였으나 대부분의 야행성 맵시벌의 기생 대상 숙주는 주로 식물을 해하는 식식성 곤충(phytophagus)으로 나타났다. Nocturnal Ichneumonidae, which was called yellow-brown ichneumonoid, included several subfamilies adapted for nocturnal activity. Taxonomic study of nocturnal ichneumonoid has been investigated by Gauld(1975) but examination of Korean nocturnal ichneumonoid has not been provided until now. This present study: the taxonomic revision, Appearance state and Host-parasite relation analysis of nocturnal ichneumonoid, were examined using Korean peninsula specimens. As the result. approximately 13 genera referable to 5 subfamilies appeared regularly in light trap. Genus MetopiudSubfamily Illetopinae) were newly recorded in nocturnal ichneumonoid. Tryphoninae and Ophioninae, which were dominant in appearance taxa! occupied 96% of total numbers of individuals, and majority of them were taken from May to November. Nocturnal ichneumonoid are parasitoids of part of immature holometabolous insects(Coleoptera, Diptera, Hymenoptera, Lepidoptera). Lepidoptera is the most common hosts of nocturnal group except Mesochorinae and Ctenopelmatine. In large number of Mesochorinae are koinobiont hyperparasitoids of ectoparasitic or endoparasitic BraconiddHymenoptera), and, less frequently, of Tachinidae(Diptera1. Also, Ctenopelmatinae are koinobiont endoparasitoids of Symphyta and, rarely, Lepidoptera. Majority of nocturnal ichneumonoid hosts are phytophagous, feeding plant taxa, and many host of Mesochorinae taxa are parastoids, and a few host are saprophagus or entomophagus.

      • PFA / Silica 유-무기 복합체의 제조 및 표면특성

        범정철,하종욱,박인준,이수복 한국공업화학회 2003 응용화학 Vol.7 No.1

        Poly(perfluoroalkyl acrylate)(PFA) / silica composites having different silica size were prepared by surface polymerization. In this study, surface characterizations of PFA/silica composites were done by HR-TEM(High Resolution Transmission Microscopy), contact angle measurement, sliding angle measurement, surface roughness measurement, and the relationships between the sliding angle and the contact angle were investigated. In the highly hydrophobic region, the sliding angles of water droplets decreased with increasing contact angle. Their surface free energies were calculated with contact angle data by geometric mean approximation. The composites with super water repellent and sliding could be obtained with contact angle of above 150。and sliding angle of below 10。to water droplets. The ultimate value of surface free energies of the composites reached below ca. ldyn/cm.

      • KCI등재
      • KCI등재

        항정신병 약물이 Cyclooxygenase-2 유전자 발현과 Prostaglandin E_2 농도에 미치는 영향

        김종우,조성욱,범재명,윤도준,장환일,송지영 대한생물치료정신의학회 2001 생물치료정신의학 Vol.7 No.2

        Objectives : Cyclooxygenase(COX) is the central enzyme in the biosynthetic pathway to prostaglandins from arachidonic acids. The action mechanism of nonsteroidal anti-inflammatory drugs is through inhibition of COX activity and prostanoid biosynthesis including prostaglandin E_2(PGE_2). The antipsychotic drugs are known having an analgesic effects, however its mechanisms of actions of action to pain control was not still clearly proved. In the present study, the effects of antipsychotic drugs(chlorpromazie and clozapine) on the production of PGE_2 and the expression of COX-2mRNA and protein in P815 cell line were studied. Methods : For that purpose, the methods of RT-PCR, western blot and prostagalndin E_2 enzymeimmunoassay were applied. Results : The results showed tha tin P815 cells treated with chlorpromazine, the level of COX2 mRNA was significantly decreased compared to the control cells. And total cellular PGE_2 levels were significantly decreased after treatment with chlorpromazine and clozapine. Conclusion : These results suggest that antipsychotic drugs have revealed their analgesic effect through the inhibition of COX-2 activity and PGE_2 production. And also, these results partly supports the excess theory of prostaglangdins in the pathogenesis of schizophrenia.

      • 백금 담지 카본블랙 촉매 제조 및 활성조사

        김종범,이무성,이완진,양갑승,서곤,김종호 全南大學校 觸媒硏究所 2002 觸媒硏究 論文集 Vol.23 No.-

        Platinum catalysts supported on carbon were prepared by using various method. The particle size distribution of loaded platinum was examined using transmission electron microscope, and that was discussed relatively to the oxidation treatment of carbon black and loading method of platinum. In addition, the relationship between its particle size distribution and catalytic activities in the deep oxidation reaction of carbon monoxide and the reduction removal of dissolved oxygen by hydrazine. The number of functional groups on carbon black largely increased by the oxidation treatment with nitric acid compared to that with air or hydrogen peroxide. The large number of functional groups were effective for homogeneous loading of platium, dispersing highly homogeneous platinum particles of 2∼3 nm in a diameter by the methanol reduction method. On the other hand, a large amount of platinum could be loaded on carbon balck using an impregnation method, but the particle size distribution of platinum was poor in homogeneity. Platinum could be dispersed with extremely small particles using on ion exchange method, but the loading amount of platinum was very small. The activities of Pt/VX catalysts in the oxidation reaction of carbon monoxide and the redution of dissolved oxygen strongly varied with the number of platinum atoms exposed, regardless of the particle size, indicating that the highest catalytic activity was obtained on the Pt/VX catalyst prepared using the methanol reduction method due to the high dispersion and large loading of platinum.

      • 冷凍 및 加熱處理가 牛肉蛋白質의 in vitro multienzyme 消化率에 미치는 影響

        梁宗範 건국대학교 1985 論文集 Vol.20 No.1

        This experiment was carried out to investigate the effect of freezing and heating on in vitro multienzyme digestibility of beef protein. The results obtained were as follows ; 1) The average digestibilities of beef protein heated at 75℃, 100℃ and 121℃ were 91.5%, 91.8% and 86.5% respectively. T7e average digestibilities of beef protein heated at 75℃ and 100℃ were higher than that of raw beef protein, and the average digestibility of beeF protein heated at 121℃ was lower than that of raw Beef protein. 2) The average digestibilities of beef protein heated at 75℃, 170℃ and 121℃ after cooling for 4 days at 3℃ were 89.8%, 89.0% and 84.5% respectively. These figures were lower than those of Beef protein healed without cooling. 3) The average digestibilities of beef protein heated at 75℃, 100℃ and 121℃ after cooling for 4 days at 17℃ were 91.0%, 91.0% and 86.7% respectively. These figures were higher than those of beef protein heated after cooling for 4 days at 3℃, and were similar to those of beef protein heated without cooling. 4) The average digestibilities of beef protein healed at 75℃, 100℃ and 121℃ after cooling for 4 days at 3℃ and freezing for 20 days at -25℃ were 87.2%, 87.0% and 83. 0% respectively. These figures were lower than those of beef protein heated after cooling for 4 days at 3℃. 5) The average digestibilities of beef protein heated at 75℃, 100℃ and 121℃ after cooling for 4 days at 10℃ and freezing for 20 days at -25℃ were 90.2%, 90.0% and 89.0% respectively. These figures were lower than those of beef protein heated after cooling for 4 days at 10℃, and were higher than those of beef protein heated after cooling for 4 days at 3℃ and fleezing for 20 days at -25℃. 6) The average digestibilities of beef protein heated at 75℃, 100℃ and 121℃ after freezing for 20 days at -25℃ were 86.7%, 86.3% and 82.7% respectively. These figures were lowest.

      • 차체 구조 설계를 위한 조인트 회전강성 기여도 인자 연구 및 최적설계

        이종선,이상범 대진대학교 1999 大眞論叢 Vol.7 No.-

        The rotational stiffness and vibration response characteristics of vehicles are influenced by the joint parts of body shell consisting of thin steel sheets with spot welding. In this paper, the rotational deformation and joint stiffness of center pillar to roof rail joint of vehicle are studied by finite element method. And, the joint rotational stiffness variations according to the design change of reinforcement panel size, flange width, and flange roundness are studied. Also, the optimal design technique for obtaining the required rotational stiffness of the joint structure is presented.

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