상복부 통증을 주소로 내원한 68세 여자환자

明承在,金明煥 대한의사협회 1998 대한의사협회지 Vol.41 No.3

방광요관 역류환아에서 항역류수술후 99mTc-DMSA 신주사 소견의 분석

오승준,고재준,이경철,임대정,이승배,이안기,김광명,최황 大韓泌尿器科學會 1998 Korean Journal of Urology Vol.39 No.9

급성 B형 간염의 회복 후 말초혈액 단핵구에서의 HBV DNA검출

명승재,이영상,김형건,이근찬,박능화,정영화,서동진 大韓消化器病學會 1997 大韓消化器病學會誌 Vol.29 No.1

흰쥐에서 염화비닐 폭로수준에 따른 소변내 thiodiglycolic acid 농도의 변화

왕승준,차봉석,노재훈,신동천,김명수,전근재 大韓産業醫學會 1999 대한직업환경의학회지 Vol.11 No.4

Objectives : It is the objective of this research to identify the variation of thiodiglycolic acid(TdGA) in urine with vinyl chloride monamer(VCM) exposure levels through methylation. Methods : After rats were exposed to vinyl chloride monomer of 4 levels, 0㎎/㎥, 50㎎/㎥, 150㎎/㎥, 500㎎/㎥, respectively, of which urine was sampled in each sampling time of 0 hour, 2 hours, 4 hours, 8 hours, 16 hours, 36 hours, 48 hours. After urine had been methylated with diazomethane in the preliminary experiment and the peak of 146 m/z had been verified, the main experiment was done. Results : In the variation of TdGA with sampling times, concentration of TdGA increased rapidly in 4 hours and then decreased after 8 hours. When the variation of urinary TdGA concentration in urine according to exposure level of VGM was verified through Kruskal-Wallis statistical method at each sampling time, the significant increment with the exposure levels at 2 hours, 4 hours, 8 hours after exposure was clarified. Conclusion : TdGA concentration in urine with increment of VCM exposure level increased, especially significantly at 2 hours, 4 hours, 8 hours of sampling time.

저선량 방사선 조사 시 종자수분함량이 채소류의 발아와 초기생장에 미치는 영향

백명화,김재성,이영근,이영복,양승균 한국환경농학회 2003 한국환경농학회지 Vol.22 No.3

채소종자의 발아와 초기생장에 대한 저선량 방사선과 종자수분함량의 영향을 알아보고자 배추, 무우, 고추, 호박, 참박 각각의 건조종자와 습윤종자에 저선량 감마선을 0~20Gy 수준으로 조사하였다. 수분함량을 상이하게 하여 관찰한 발아와 초기생장에 미치는 저선량 방사선 효과는 작물종에 따라 다르게 나타났다. 발아율의 경우는 건조종자보다 습윤종자에서 대체로 높았으며 저선량 효과는 배추와 호박의 습윤종자 4Gy와 2Gy에서 각각 33%와 13% 증가하여 뚜렷한 효과를 보였고, 참박은 건조종자 4~8Gy에서 높았다. 초기생장은 습윤종자에서 뚜렷한 효과를 보여 배추와 무는 10Gy, 호박은 2Gy, 참박은 8Gy에서 6~26% 정도 증가하였다. 이러한 초기생장 촉진효과는 저선량방사선과 수분함량 상호간에 유의적인 차이를 보였으며 특히 배추와 참박에서 가장 높았다. 즉, 채소 종자의 수분함량을 상이하게 하여 저선량 방사선의 효과를 조사한 결과 적정 수분함량에서 발아와 유묘생장이 촉진됨을 확인할 수 있었다. To investigate the effects of low dose gamma radiation and seed moisture content (SMC) on germination and early growth of vegetable crops, seeds of Chinese cabbage (Brassica camperstris L.), radish (Raphanus sativus L.), red pepper (Capcicum annuum L.), figleaf gourd (Cucurbita ficifolia Bouche) and bottle gourd (Lagenaria siceraria Stand), with different SMC were irradiated with different doses (0-20 ㏉) of gamma-ray by irradiator ^(60)Co, ca.150 TBq of capacity, AECL). Vegetable crops in which low dose gamma radiation was irradiated in seeds with different moisture content showed different response in seed germination and early growth to low dose gamma radiation. The germination rate of Chinese cabbage, figleaf ground and bottle gourd irradiated with 2-8 ㏉ showed interactive responses against relative SMC. Also, significant interactions occurred for the early growth between those factors. The stimulating effects of gamma radiation were more pronounced for hydrated seeds of Chinese cabbage, radish, figleaf gourd and bottle gourd showing prominent responses with 2-10 Gy irradiation, particularly for Chinese cabbage and bottle gourd. These results suggest that radiation may promote germination and early growth of vegetable crops through interaction with SMC.

과재하중 재하에 따른 역 T형 옹벽의 활동거동에 관한 수치해석

유남재,이명욱,박병수,이승주 江原大學校 産業技術硏究所 2001 産業技術硏究 Vol.21 No.B

This paper is experimental and numerical research about the sliding behavior of cantilever retaining walls resisting surcharge loads. In experimental research, centrifuge model tests at the 1g and 40g-level were performed by changing the location of model footing and its width. Bearing capacity of model footing and characteristics of load-settlement and load-lateral displacement of retaining wall were investigated. Test results of bearing capacity were compared with modified jarquio method, based on the limit equilibrium method with elasticity theory. For the numerical analysis, the commericially available program of FLAC was used by implementing the hyperbolic constitutive relationships to compare with test result about load-settlement and load-displacement of retaining wall, bearing capacity of strip footing.

Dense Kondo 계인 CeTe의 광학적 성질

정명화,김재민,권용성 성균관대학교 기초과학연구소 1995 論文集 Vol.46 No.1

Dense Kondo계인 CeTe와 정상금속인 LaTe의 크기 양질인 단결정을 개선된 Bridgeman방법으로 성장시켰다. 이 단결정을 이용하여 0.05∼8eV의 광범위한 에너지 영역에서 반사율을 측정하여, Kramers-Kronig변환을 통해 광학전도도를 얻었다. 광학전도도의 스펙트럼을 분석한 결과, CeTe와 LaTe의 경우 모두 p-d 전이에 의한 두 개의 피크가 3.6eV와 5.1eV에서 발견되었다. 이 두 피크의 형성 mechanism은 5d-band의 입방결정장에 의한 것임을 알았다. 그리고 CeTe의 경우는 LaTe에 없었던 4f-5d전이에 의한 피크가 0.4eV에서 발견되었다. 이는 XPS 스펙트럼으로부터 얻은 bare 4f-전자의 binding 에너지(약 1.5eV)에 비해 매우 작은 값이다. 이 편차는 local field를 고려한 Lorentz모델을 적용함으로서 잘 설명되었다. 또한, localization의 정도로 약 0.4의 값을 얻었다. 끝으로, 띠내전이의 해석으로부터 LaTe의 경우보다 CeTe의 경우가 전도전자의 유효질량이 무겁다는 사실을 얻었다. 이것으로부터 CeTe의 여기상태인 Γ_8와 전도전자 간의 Kondo 교환상호작용의 에너지가 매우 크다는 것을 알았다. We had grown the high quality single crystals of dense Kondo system CeTe and normal metal LaTe by using the advanced Bridgeman method. The reflectivities of the single crystals were measured in wide energy range from 0.05 to 8eV, and their optical conductivities were obtained using Kramers-Kronig transformation. By the result of their optical conductivity spectra, two peaks due to p-d transition were discovered at about 3.6 and 5.1eV, respectively. The double peaks were explained by cubic crystalline electric field. And in case of CeTe, extraordinary peak due to f-d transition, which LaTe had not, was appeared around 0.4eV. This value was well explained by the Lorentz model considering the local field. The degree of screening due to conduction electrons was evaluated to be about 0.4. The effective mass of conduction electron of CeTe was large compared with that of LaTe. From this, we could obtain the fact that in CeTe, Kondo exchange energy between conduction electron and excited Γ_8 state was very large

光質이 채소作物의 種子發芽와 初期生育 및 除草劑의 活性에 미치는 效果

李政明,金侊來,權臣漢,曺哉銑,朴啓仁,全尙根,李承雨 경희대학교 부설 식량자원개발연구소 1987 硏究論文集 Vol.8 No.-

Studies were conducted to investigate the response of some horticultural plants to various light qualities provided by different kind of materials such as cellophane sheets, EVA, PVC(polyvinyl chloride,. and polyethylene (FE) films of different color. Major findings are summarized as follows. White fluorescence light and red light promoted seed germination of lettuce and inhibited that of radish seeds. Blue light inhibited the seed germination of both types of light-sensitive seeds. The light sensitivity varied considerably depending upon the kind of crops, cultivars, and the seed batches of the same cultivar. The blue light was equally or more strongly effective in inhibiting the seed germination as compared to the farred light. The growth of young seedlings developed from seeds was considerably promoted when grown under orange colored plastic film coverings The growth of larger seedlings was, however. not influenced by the color of plastic films Mulching pepper field with colored PVC film did not show further advantages over the commonly -used black PE film. Herbicidal activity of oxyfluorfen was very strong under natural light or red light conditions, and weak under blue or green light conditions The degree of oxyfluorfen-induced phytotoxicity varied considerably depending upon the light quality and the kind of vegetable crops.

개의 심장사상충증 발생례

김명철,이수진,이재일,박창식,전무형,김덕환,임승평 충남대학교 형질전환복제돼지연구센터 2004 논문집 Vol. No.8

A 5 year old, 13kg, Jindo dogs was presented with clinical signs of anorexia, weakness and exercise intolerance, and diagnosed as dirofilariasis by hematology, blood chemistry and ultrasonography. In hematology and blood chemistry, the presence of microfilariae in the blood. anemia, leukocytosis, hemoglobinuria and jaundice were revealed. In ultrasonography, heartworms were found in the right ventricle artery and pulmonary artery as structures of hyperechoic dots or streaks. Because of the dog's poor physical status, the owner requested euthanasia. In autopsy, fifty odd of heartworms were ascertained in the right ventricle and pulmonary artery. Tricuspid valve in the orifice of right ventricle and right atrium, and chordae tendineae were deliquesced.

개의 심장사상충증 발생례

김명철,이수진,이재일,박창식,전무형,김덕환,임승평 충남대학교 수의과대학 동물의과학연구소 2003 動物醫科學硏究誌 Vol.11 No.-

A 5 year old, 13kg, Jindo dogs was presented with clinical signs of anorexia, weakness and exercise intolerance, and diagnosed as dirofilariasis by hematology, blood chemistry and ultrasonography. In hematology and blood chemistry, the presence of microfilariae in the blood, anemia, leukocytosis, hemoglobinuria and jaundice were revealed. In ultrasonography, heartworms were found in the right ventricle artery and pulmonary artery as structures of hyperechoic dots or streaks. Because of the dog's poor physical status, the owner requested euthanasia. In autopsy, fifty odd of heartworms were ascertained in the right ventricle and pulmonary artery. Tricuspid valve in the orifice of right ventricle and right atrium, and chordae tendineae were deliquesced.