야생 설치류의 한타바이러스 감염에 대한 연구

백락주,송진원,송기준,박광숙,최영주,강주일,이용주 대한감염학회 1997 감염 Vol.29 No.6

목적:국내 야서중에 한타바이러스의 숙주는 등줄쥐와 집쥐로 알려져 있으나, 한국에 서식하고 있는 다양한 야생 설치류를 채집하여 한타바이러스에 대한 항체검사를 실시하여 새로운 혈청형의 한타바이러스가 있는지를 혈청학적으로 규명하고자 하였다. 방법:국내에 서식하고 있는 야생 설치류를 1995년 10월부터 1996년 10월까지 7종 551수의 야시와 4종 97수의 소형동물을 채집하여 한타바이러스에 대한 항체검사를 간접형광항체법으로 실시하였다. 결과: 1) 야서 7종 551수와 소형동물 4종 97수를 대상으로 한탄바이러스의 감염율은 등줄쥐 17.2%(29/162), 흰넓적다리붉은쥐 8.7%(2/23), 대륙밭쥐는 25%(2/8), 그리고 땃쥐는 7.1%(1/14)이었다. 그리고 야생토끼는 8.8%(7/80)가 서울바이러스에 대한 항체를 가지고 있었다. 등줄쥐의 양성혈청중 대부분은 서울바이러스와 일부는 푸말라바이러스, 프로스펙트힐바이러스, 뉴욕바이러스와도 교차반응이 있었다. 흰넓적다리붉은쥐 2수와 대륙밭쥐 2수는 5가지 한타바이러스 모두에 교차 반응이 있었다. 2) 다람쥐는 9.5%(28/283)가 채집지역에 관계없이 한탄바이러스에 대한 항체를 가지고 있었고 항체기는 1:16 내지 1:256으로 비교적 낮았으며 서울바이러스, 푸말라바이러스, 프로스켁트힐바이러스와 뉴욕바이러스에 각각 반응하는 것도 일부는 교차반응을 보이는것도 있다. 청설모는 10.3%(7/68)가 한탄바이서르에 대한 항체를 가지고 있었으며 항체가는 1:16 내지 1:1,024이었으며 일부는 교차반응이 있었다. 3) 야생토끼의 서울바이러스에대한 항체양성율은 8.8%(7/80)이었으며 이중에 2수는 한탄바이러스와 교차반응이 있었고, 푸말라바이러스, 프로스켁트힐바이러스, 뉴욕바이러스와는 교차반응이 없었다. 항체가는 1:16 내지 1:64로 비교적 낮았다. 결론:등줄쥐는 한탄바이러스에 의한 감염이지만 흰넓적다리붉은쥐, 대륙밭쥐, 다람쥐 그리고 청설모의 일부는 한탄바이러스가 보다 다른 한타바이러스에 대한 항체가가 높았고 특히 일부 다람쥐 혈청은 푸말라바이러스 혹은 프로스켁트힐바이러스에만 반응하였다. 그리고 야생토끼는 서울바이러스에 대한 감염율이 높은 것으로 보아 국내에 한탄바이러스와 서울 바이러스 이외에 새로운 혈청형의 한타바이러스가 있는 것을 사료된다. Background: Hantavirus are widley distributed in rodents populations even in geographical areas where hemorrhagic fever with renal syndrome(HFRS) has not been reported. Multiple species of Murid and Arvicolid rodents serve as the natural reserviors of hantaviruses. Serologic diagnosis using hantaviral antigens indicates that hantaviruses are widley distibuted in wild rodents. This study were designed to find the distribution of hantaviruses among wild rodents and small mammals in Korea, 1995-1996. Methods: Rodents were trapped alive in selected areas. A total of 551 wild rodents from 7 species and 97 small mammals from 4 species were captured in Korea. Serologic evidence for hantavirus infection were tested using five hantavirus antigens by indirect immunofluorescent antibody technique(IFA). Among 162 Apodemus agrarius, 23 Apodemus peninsulae, 8 Clethrionomys regulus, 6 Microtus fortis, 1 Mus musculus, 283 Tamias sibiricus, 68 Sciurus vulgaris, 14 Crocidura laciura, 80 Lepus sinensis, 2 Capereolus capereolus and 1 Nyctereutes procyonoides. Results: 29 A. agrarius, 2 A. peninsulae, 1 C. laciura, 2 C. regulus, 27 T. sibiricus and 7 S. vulgaris were sero positive agaist hantaan virus and 7 L. sinensis were IF antibody positive against Seoul virus. Some of Tamias sibiricus were only seropositive against puumala virus or prospect hill virus. Conclusion: This data suggests that new serotypes of hantavirus might distribute among rodents in Korea.

지반-구조물 상호작용에서의 JOINT 요소에 대한 연구

최광순,손영호,김종주,최광규 동아대학교 건설기술연구소 1999 硏究報告 Vol.22 No.2

The direct boundary element method has been formulated In which the symmetry condition is introduced. The displacement approach of the finite element method has been reviewed where the joint stiffness formulation is included. The coupling of boundary and finite element methods is derived for both equivalent boundary and finite element approaches. A computer program based on the coupling of boundary and finite element methods was developed to analyze the elastic behavior of a structure. Another computer program based on the finite element method alone was developed to solve the same soil mass which were assumed to be linearly elastic, isotropic, and homogeneous. The characteristics of joint elements are that they will separate in response to tension, slide in response to shear, and transmit any force in response to compression. The limitation of no transfer of tensile stresses across soil/structure interface was ensured by employing iterative schemes on joint elements. The iterative solution to simulate real properties of joint elements is based on the so called "load transfer method" An example problem of soil-structure interaction problem has been analyzed using the two numerical methods indicated above. Comparison of the results of nodal displacements obtained from both techniques and the software CRISP demonstrates the accuracy and validity of the coupling of boundary and finite element methods. Due to the fact that the dimensionality of the boundary element region is reduced, the equations generated by the coupling of boundary and finite element methods are fewer than the equations generated by the finite element method alone in acquiring the same acruracy. Therefore, the coupling of boundary and finite element methods is more efficient than the finite element method alone in solving a complex soil-structure interaction problem.

유리단 국소의치 장착 후 M.K.G.에 의한 하악운동 형태 및 속도의 변화

최현미,조주온,이상돈,송광엽,박찬운 全北大學校 齒醫學硏究所 1992 전북치대논문집 Vol.10 No.1

The purpose of this study is to evaluate the effects of distal extension partial denture on the mandibular movement patterns and velocity. The subjects are 10 patients who have unilateral or bilateral distal extension edentulous area in maxillary and/or mandibular arches. Their mandibular movement patterns and velocity had been measured by Mandibular Kinesiograph(M.K.G.-K6 diagnostic system, Myo-tronics Inc. Seattle. WA. U.S.A.) once just before the treatment and 8 times every week since the dentures were placed. The data have been analyzed statistically by means of ANOVA and Tukey test. The results have been obtained as follows : 1. The placement of the dentures has reduced the amount of vertical and antero-posterior displacement in the habitual mandibular movement significantly(p<0.01). 2. The maximum opening and closing velocity and the mean opening and closing velocity showed no significant change with the placement of the partial dentures(p>0.01). 3. The velocity trace of maximum opening-closing movement has been more regularized and well-coordinated, and the number of clicks decreased continuously after placement of the dentures and showed stable patterns since the 5th week(p<0.01). 4. The left deviation has been decreased significantly after the placement of the dentures and showed no significant change since the 4th week. The right deviation has also been reduced, but there was shown no difference after the 1st week(p<0.01). 5. The crossover pattern has been most frequently observed in the frontal plane and the sagittal plane. It has not been changed with the denture placement and stabilized uniformly.

철근콘크리트 부재의 전단변형 해석에 관한 연구

최광진,장일영,권종주,송재호 金烏工科大學校 1994 論文集 Vol.15 No.-

The object of this study is to present an analytical method using superposition of displacement due to flexural crack and diagonal tension crack in reinforced concrete members. Flexural displacement caused by bending moment could be found by the double integration of curvature derived from the relationship between moment and curvature. The macro model of shear deformation from the viewpoint of diagonal tension crack occurrence and its development has been developed. The rotational angle due to diagonal tension crack could be evaluated by using strain compatibility, force equilibrium and moment equilibrium. Furthermore the bonding characteristics between concrete and steel as well as the characteristics of dowell have been taken into consideration. The theoretical values calculated using the analytical method developed in this study have been investigated in comparison with the experimental ones which were carried out earlier in order to prove it s validity. From the results it has been shown that theoretical values agree quite well with experimental ones, and it could be pointed out that presented analytical method is widely acceptable for the practical analysis of flexural displacement of reinforced concrete members.

한반도 지진특성을 고려한 설계지진 결정에 관한 연구

최홍석,손영호,김종주,최광규 동아대학교 건설기술연구소 1999 硏究報告 Vol.22 No.2

Because of the frequent occurrence of the earthquakes In Korean Peninsula, it increases that the earthquake resistant design is necessary, and the design earthquake value should be estimated for the earthquake resistant design. Then, it is given in this study, the historical and instrumental earthquake data in Korean Peninsula, and those data are analyzed by applying the extreme probability distribution function and Weibull distribution function. In extreme probability distribution function, the modified first and the third asymptotic functions of the largest value theory are applied to obtain the return periods and probabilities of exceedance, and the least square method is used to estimate the parameter. In Weibull distribution function, the maximum likelihood estimate is used to estimate the parameter. The period-frequency spectrum, probability density spectrum, fourier spectrum and response spectrum analysis are peformed based on the measured seismic wave of Korean Peninsula, which are the basis of the design spectrum. It was investigated from the above performed results that the responses of the structures were influenced by the frequency contents of the data to a high degree.

地震波를 받는 基礎-地盤 相互作用계에서의 波消散 效課

金宗周,孫榮浩,崔鎭旭,崔光圭 東亞大學校 海洋資源硏究所 1992 硏究論文集 Vol.5 No.2

In this study , the dynamic analysis procedure of foundation -soil interaction system subjected to seisemic wave is presented . The foundation is placed on a linear elastic , isotropic and homogeneous half space representing the soil medium. The boundary element model of half space and the finit element model of foundtion are coupled together by enforcing compatibility condition of displacements and equilibrium condition of traction on the contact surface. The acuuracy of the proposed method si vertified throough the conparison studies with results reported method is that it provides directly the transient response unlike the frequency domain techniques.

國民學校 英語敎育(特活)의 實態分析과 그 改善 方案에 關한 硏究 : 江原道를 中心으로 Centered around Kangwon-do

金光守,崔銘周 春川敎育大學 1988 論文集 Vol.28 No.-

측모 두부방사선계측사진 분석과 측모 사진 분석의 비교

김광원,임성훈,조주영,최갑림 대한치과교정학회 2006 대한치과교정학회지 Vol.36 No.1

오래 전부터 교정진단 및 치료계획 수립 시 골격 및 치열 관계와 안모를 분석하기 위한 필수적인 진단 자료로 측모 두부방사선계측사진을 이용하였다. 하지만 최근 들어 심미적인 측면이 강조되면서 좀 더 정량화된 연조직 분석법이 필요하게 되었고 좀 더 사실적인 연조직 측모를 얻기 위해서는 측모 두부방사선계측사진보다는 측모 사진이 더 유용할 것이다. 아직까지 측모 사진을 계측, 분석하는 경우는 드물었기 때문에 이 연구에서는 측모 사진의 계측 분석을 측모 두부방사선계측사진 분석과 비교해 봄으로써 연조직과 경조직 분석이 서로 상관관계를 갖는지를 알아보고 그 대체 가능성을 시험 평가해 보고자 하였다. 교정과에 내원한 환자들 중 측모 두부방사선계측사진의 계측치인 ANB를 기준으로 Ⅰ급 부정교합(0˚~4°) 32명, Ⅱ급 부정교합(4°≤) 32명, Ⅲ급 부정교합(5°~0°) 31명을 선정하였다. 각 피험자들의 측모 두부방사선계측사진과 측모 사진을 각각 촬영하여 수평적, 수직적 계측 항목을 설정한 후 각 계측치들의 평균과 표준편차를 구하였고 통계적 유의성을 알아보기 위해 표준화 변수 Z를 이용한 t-test와 상관분석을 이용하였다. 분석 결과 측모 두부방사선계측사진 분석에서 세 그룹 간에 뚜렷한 차이를 보이는 계측치들이 측모 사진에서도 유사한 차이를 보이는 것을 확인할 수 있었다. 본 연구결과 측모사진은 Sn-N'-Pg'은 측모 두부방사선계측사진에서 상,하악골의 전후방적인 관계를 나타내는 ANB를 대신하여 사용될 수 있으며, 측모 사진의 N'-Sn/Sn-Pg'은 측모 두부방사선계측사진의 NA/APg (ficial convexity)을, 그리고 측모 사진의 N'-Tra-Me'는 측모 두부방사선계측사진의 FH-MP (mandibular plane)을 대신하여 사용될 수 있을 것으로 보인다. Alalysis of lateral cephalometric radiograph (cephalogram) has been used routinely to evaluate skeletal and dental relationships, but alalysis of the lateral facial photograph has not been used frequently for evaluation of skeletal relationships. As concerns about harm of X-ray irradiation increases, this study was planned to evaluate the possibility of substituting analysis of the lateral cephalogram with analysis of the lateral facial photograph by comparing these two analysis. According to the ANB values from cephalometric analysis, subjects were divided into three group: ClassⅠmalocclusion group (n = 32). Class Ⅱ malocclusion group (n = 32), and Class Ⅲ malocclusion group (n = 31). After measurements of angles indicating horizontal and vertical relationships of the maxilla and mandible on the lateral cephalograms and photographs, differences between ClassⅠ,Ⅱ and Ⅲ groups were evaluated. To evaluate the similarity between two similar values in the cephalograms and photographs, t-test using standardized variable Z and correlation analysis were performed in the Class Ⅰmalocclusion group. The results show that 1) SnN'Pg' on the photograph can be used to evaluate the antero-posterior relationship of the maxilla and mandible (ANB), 2) N'-Sn/Sn-Pg' on the photograph can be used to evaluate facial convexity (NA/APg), 3) Sn-Tra-Me' on the photograph can be used as a measurement similar to FMA, In conclusion, partly substituting lateral cephalogram analysis with lateral facial photograph analysis was possible in the evaluation of the maxilla and mandible.

全南地域의 水稻作 害忠調査

尹柱敬,崔福衍,金光秀 全南大學校 農漁村開發硏究所 1975 農業科學技術硏究 Vol.10 No.-

1975年 7月 4日~ 9月 25日에 和順과 光山의 水畓作地帶에서 發生되고 있는 昆蟲을 1週日 間隔으로 25回 往覆으로 採集하였던 바 다음과 같은 結果를 얻었다. 1) 採集된 害蟲은 4目 12科 13種이며 여기에 寄生하는 天敵으로는 3目 3科 4種과 거미류 및 청개구리로 나타났다. 2. 優占種으로는 光山에서는 벼멸구, 흑명나방, 끝동매미충이며, 和順에서는 끝동매미충애멸구, 흰등멸구, 벼잎벌레였다. 3. 綜合防除區는 一般農家防除區에 比하여 天敵 活動이 活發하였으며 그 結果도 뚜렷한 것으로 나타났다. 4. 光山과 和順에서의 收量調査를 하여 본 결과 二個地域 모두다 無防除區에 比하여 防除區는 20%의 內外의 增收를 가져왔다. Injurious insects dwelling in paddy growing zones of Hwasoon and Kwangsan in Chonnam were collected over 25 times with a 7-day interval from July 4 to September 25, 1975. The results were as follows: 1. Collected insects were 13 species in 12 families of 4 orders. In addition to these insects, 4 species in 3 families of 3 orders and Anura and Araneae were as their natural enemies. 2. Dominant species found in Kwangsan area were Nilaparvata Iugens Stal, Cnaphalocrocis medinalis Guenee, Nophotettix bipunctatus cinctiops Uhler and in Hwasoon area were Nephotettix bipunctatus cinctiops Uhler, Delphacodes striatella Fallen, Sogota furcifera Horvath, and Lema oryzae Kuwayama. 3. Since the natural enemies were more active in the integrated control plots compared with the ordinary farmers control plots, It can be concluded that the integrated control was more effective. 4. Grain yield per hectare was increased by about 20% in the control plots compared with that of the decontrol plots in both of Kwangsan and Hwasoon.

지역문화정책 집행과정에 영향을 미치는 요인에 관한 인식도 평가 : 대구 광역시를 중심으로

박광국,최상일,주효진 서울대학교 행정대학원 2000 行政論叢 Vol.38 No.2

본 연구는 지역문화정책 집행과정에 영향을 미치는 다양한 요인들을 이론적 고찰을 통해 밝혀내고 요인분석을 통해 이들이 어떻게 범주화될 수 있는지를 살펴 보았다. 분석결과 첫째, 지역문화정책 집행과정에 영향을 미치는 요인군으로는 문화행정의 전문성, 문화관련 조직들간의 협력, 문화인프라의 구축, 지역문화사업의 경쟁력, 문화행사의 다양성, 문화발전의지 등 6가지 요인으로 분류된다는 것을 요인분석을 통해 알 수 있었으며, 둘째, 지역문화정책 집행과정에 영향을 미치는 요인들에 대해 공무원과 문화예술인의 인지도가 상이한 것도 있었으나 대체로 두 집단 모두 부정적인 인지도를 나타내는 경우가 많았다. 특히, 단체장의 문화발전의지와 문화행정 담당공무원의 전문성에서는 두 집단간의 인식이 상이하였으며, 문화인프라와 문화행사의 다양성에 대해서는 두 집단 모두 부정적으로 인지하고 있는 것으로 나타났다.