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柳友國,李起煥,權善鎬,盧興泰 충남대학교 의과대학 지역사회의학연구소 1985 충남의대잡지 Vol.12 No.1
Ovarian Dysgerminoma is a tumor purely of germ cells without any attempt to form teratomatous elements and is believed to arise from the primordial germ cells of the indifferent stage of gonadogenesis. We have had a Dysgerminoma of right ovary in 28 years old multigravida and report the case with review of literatures briefly.
유선국,허명준 순천향대학교 1991 논문집 Vol.14 No.3
The pseudo-plant contains a model whose order is determined by the controller order. The given plant is identified by a higher order identifier, and then reduced to the controller order by means of the singular perturbation concept. The plant, the chosen model, and a filter constitute the pseudo-plant. For the implementation of the adaptive controller, a design guideline of the filter is proposed. As the plant model is chosen by a reliable procedure, choosing the filter to have the same frequency characteristics of the chosen model might be a good policy. Simulation results show the effectiveness fo proposed method.
유선국,김창교 순천향대학교 1994 논문집 Vol.17 No.1
The surface information was extracted from the complete octree by using the geometric spatial structure of octree. Excluding the unnesassary inner structure, it reduced the computation time. Surface finding method was satisfied to the inner, outer border and multiple structure cases. Compared to the number of input voxels, the required memory size with surface data structure was reduced at all testing cases.
아동의 태권도 수련참여에 따른 생활태도 변화에 대한 모형적합성 검증
박종국,이선장,유재원 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.20 No.1
This research is about the effect of Taekwondo training on the children's behavior. The subjects of this study are the elementary school students who are now engaged in the Taekwondo exercise course. And they all are in the school grade of 3rd, 4th, and 5th, possessed of over 1pum in Taekwondo. The parents of those students are the subject of the survey. 500 papers were distributed and 467 of those were used for the analysis. The collected data were analyzed to test the causal relationships using prequency Analysis, descriptive statistics, correlation analysis of SPSS/PC+ 8.0 version and LISREL 8.12 for windows From the above analysis, the following conclusions were obtained: First, by way of Taekwondo training, mental attitude of the children improved, elevated the children's flexibility to the society and their living attitude. Second, Taekwondo training the relation among the training period and the change of flexibility to the society, adaption to the society, influence on the living attitude. Third, there exist causal relationships among Taekwondo training period and their change of flexibility to the society, adaption to the society, influence on the living attitude. This causal model fits well with empirical data.
중합효소연쇄반응법을 이용한 급성 치수 및 치근단 질환의 병원성 세균의 동정
김지훈,유소영,임선아,국중기,임상수,박슬희,황호길 大韓齒科保存學會 2003 Restorative Dentistry & Endodontics Vol.28 No.2
The purpose of this study was to investigate the frequency of 7 putative pathogens in endodontic infections. The specimens were collected from infected pulpal tissue of patients who were referred for root canal treatment to the department of conservative dentisty, Chosun University. Samples were collected aseptically using a barbed broach and a paper point. The cut barbed broaches and paper points were transferred to an eppendorf tube containing 500 ml of 1 X PBS. DNAs were extracted from the samples by direct DNA extraction method using lysis buffer (0.5% EDTA, 1% Triton X-100). Identification of 7 putative pathogens was performed by PCR based on 16S rDNA. The target species were as follows: Porphyromonas endodontalis, Porphyromonas gingivalis, Prevotella intermedia, Prevotella nigrescens, Bacteroides forsythus, Actinobacillus actinomycetemcomitans, and Treponema denticola. Our data revealed that the prevalence of P.endodontalis was found in 88.6% (39 / 54), P.gingivalis 52.3% (23 / 44), P.nigrescens 18.2%(8 / 44), P.intermedia 15.9% (7 / 44), B.forsythus 18.2% (8 / 44), A.actinomycetemcomitans 2.3% (1 / 44), T.denticola 25% (11 / 44) of the samples. The high prevalence of P. endodontalis and P.gingivalis suggests that they may play an important role in the etiology of endodontic infections.
백승화,유선국,윤태성 明知大學校 産業技術硏究所 1987 産業技術硏究所論文集 Vol.6 No.2
A neural tuning model is analyzed which is based on the phenomena for basilar membrane motion, and the responses of tuning curves. By assuming the cochlear fluied is incompressible and non-viscous, a pair of second order differential equations for basilar membrane motion is solved and the neural tuning response for hair cell excitation is analyzed by linearly combining the pressure across the basilar membrane with its displacement. The sharply tuning filter mechanism with different characteristic place being sensitive to different characteristic frequency is obtained. The differences between the mechanical properties for basilar membrane and the neural tuning reponses are explained.
李起煥,柳友國,權善鎬,盧興泰 충남대학교 의과대학 지역사회의학연구소 1985 충남의대잡지 Vol.12 No.1
Conjoined twins are known to be very rare. A case of thoracoventropagus, aborted on the 20^th weeks gestation, is reported with brief review of the related literatures
그림카드 이야기 꾸미기 활동에 따른 유아의 어휘력과 언어표현력
정금자,유국선 한국영유아보육학회 2002 한국영유아보육학 Vol.0 No.29
The purpose of this study is to illustrate the effects on vocabulary and language expressive abilities with postcard story making. Eighty five-years-old infant's are participated. Post-test utilized for this study. The statement of the specific purpose is to illustrate that (a) the effects of vocabulary development, and (b) language expressive abilities of the subject with postcard story making. The results of this study are that: (a) the infant's activities with postcard story making are effect to improve the vocabulary ability. The activities with postcard story making for the infant's vocabulary ability; and (b) infant's language expressive ability is influenced by the activities with postcard story making. The activities with postcard story making for the infant's language development are an excellent intervention material. Therefore, the conclusions of this study are (a) the natural play circumstances with peer interaction are important factor to develop the infant's language ability; and (b) infant's based activities, not teachers and/or adults is considered to develop the infant's creative knowledge and potential energy with language.