Ribosomal DNA의 ITS영역 염기서열 분석에 의한 기주특이적 독소 생성 Alternaria spp.의 계통분류학적 유연관계

高昇柱,洪承範,姜熙玩,劉勝憲,柳震彰 충남대학교 생물공학연구소 1998 생물공학연구지 Vol.6 No.-

기주특이적 독소 생성 Alternaria spp.와 비병원성 A. alternata의 계통분류학적 유연관계를 규명하기 위하여 기주특이적 독소 생성 Alternaria 6균, 비병원성인 A. alternata 그리고 비교균으로서 소형포자를 형성하는 A. brassicicola, 대형포자를 형성하는 A. solani의 ribosmal DNA의 5.8S를 포함한 ITS영역의 염기 서열을 분석하였던 바 다음과 같은 결과를 얻었다. 1. Alternaria spp.의 rDNA ITS영역의 염기서열 크기는 548∼562bp였으며 5.8S rDNA에서는 비교종간에 서로 일치하였고 ITS I에서는 종간 뚜렷한 차이를 보였다. 2. 기주특이적 독소 생성 Alternaria spp.의 rDNA의 ITS영역의 염기서열은 비병원성인 A. alternata의 염기서열과는 서로 일치하였으나 A. brassicicola와는 3%, A. solani와는 7%의 염기서열 차를 보였다. 3. 기주특이적 독소 생성 Alternaria spp.는 비병원성 A. alternata와 진화적으로 매우 가까운 유연관계를 나타내었다. The regions of internal transcribed spacer(ITS) including 5.8S ribosomal DNA(rDXA) from six host-specific toxin(HST) producing Alternaria spp. nonpathogenic A. alternata. A. solani and A. brassicicola were sequenced to assess their relationship in taxonomy. There was no difference in the sequences of ITS including 5.8S rDNA among the HST-producing Alternaria spp. and nonpathogenic A. alternata. However, the sequences of HST-producing Alternaria spp. were different from those of A. solani and A. brassicicola by about 7% and 3%, respectively. These results suggest that HST-producing Alternaria spp. are evolutionarily very close to non pathogenic A. alternata although they have host-specific pathogenecity.

여말선초 시학사의 구도를 위하여 -방법으로서의 전고(典故)-

김승룡 ( Kim Seung-ryong ),류재민 ( Ryu Jae-min ) 한국한문학회 2017 韓國漢文學硏究 Vol.0 No.65

이 글은 여말선초 시학사의 구도를 준비하기 위한 방법을 모색하고자 하였다. 기존 시학사의 구도는 하나의 線을 이루지만, 그것이 개별 작품을 통해 구체적으로 검증해 낼 수 있는지는 확실하지 않다. 더구나 여말선초는 일찍이 하나의 흐름으로 파악되어 본 적이 없는 바, 전철을 밟지 않고 새롭게 준비될 방법이 필요하다. 이에 여말선초 시인으로 꼽히는 유방선을 중심에 놓고, 시학전통의 계승과 단절을 읽는 방법으로 `典故`를 주목하였다. 유방선은 고려말의 이색ㆍ이숭인ㆍ권근ㆍ변계량(`선배`)의 계보를 이어 받아, 서거정ㆍ 이승소ㆍ성간(`후배`) 등 조선초를 대표하는 문인들을 길러내었다. 유방선은 창작에 있어 표절 혐의를 받을 정도로 앞선 이들의 시문을 적극 차용했는데, 이는 그가 선배들의 시적 성취를 계승해 자신의 창작의 근거로 삼았음을 보여준다. 실제 작품을 통해 검증한 결과, 유방선이 선배의 시적 성취를 차용하여 후배에까지 전수된 시적 표현이 있는 반면, 후배에게 선택받지 못한 표현도 있음을 확인할 수 있었다. 특정한 시적 표현이 계승되고 단절되는 사이에서 유방선이 연결고리 역할을 했던 것이다. 한시에 있어 전고를 관류하는 핵심원리는 `번역`이라고 할 수 있다. 고려들은 전고 를 번역함으로써 전고 출발지의 서사를 전유하였고, 이는 `또 하나의 전통`(`한국적 전고`)이 되어 그들의 창작을 풍요롭게 했다. 그 창작은 다시 `또 하나의 전고`가 되었고, 조선인들은 이 전고를 번역하여 그들의 시공간에서 창작하였다. 이처럼 전고의 계승과 단절은 새로운 전고의 창신과 파괴로 이어지면서 한반도의 시학사를 구성하고 있었던 것이다. 차후 `전고와 번역`을 화두로 하여 한국한시사의 맥락을 찾고, 그 시적 전통의 계승과 단절을 추적할 수 있기를 기대한다. The purpose of this study is to find a way to newly construct history of poetics in late Goryeo and early Joseon. In the event of understanding composition of the poetry history through the existing way, the big stream can be comprehended but it cannot be confirmed that it applies to individual works. Particularly, a new way is required for this since it has never been figured out as a single stream in late Goryeo and early Joseon. This study will try to grasp the meaning of the succession and discontinuity of the poetic tradition through the `authentic precedent` based on a model of the poet, Yu Bang-Sun in late Goryeo and early Joseon. Yu Bang-Sun inherited the genealogy of Lee Saek, Lee Sung-In, Kwon Geun, and Byeon Gye-Ryang in late Goryeo, and brought up the literary persons who are representing Seo Geo-Jeong, Lee Seung-So, Seong Gan in early Joseon. Yu Bang-Sun has actively borrowed the works of his predecessors, enough to be accused of plagiarism when creating poetry. This shows the basis of his own creation by succeeding in the poetic achievements of his predecessors. As a result of verifying through actual works, the poetic tradition borrowed by Yu Bang-Sun continued to the next generations and stopped at him. Yu Bang-Sun played the role of connecting link while the tradition of the poetry history was succeeded and discontinued. The core principle of the authentic precedent in terms of Chinese poem is "translation". Authentic precedent translated by Goryeo`s authors has become a `new tradition` (`Korean authentic precedent`) and enriched their creative work. The creations that were born in such way became `authentic precedent` again. The authors of Joseon made their own creations through translating this new authentic precedent. Thus, the history of Korean poetics was made up through succession and discontinuity of authentic precedent. It is desired that we will find out the context of history of Korean poetics and keep track of the succession and disconnection of the poetic tradition based on the keyword of `authentic precedent and translation` in the future.

金井山 林道開設에 따르는 問題点에 관한 硏究

이경재,류창희,김승환,박승범 東亞大學校生命資源科學大學附設 農業資源硏究所 1993 農業生命資援硏究 Vol.2 No.1

Mt. Gum-Jung is a very important mountain of Pusan which is connected to the large branch of Mt. Baek-Du, range including Mt. Baek-Du, Mt. Un-Ju, Mt. Ka-Zi, Chui-Seo and Mt. Gum-Jung. It is also attached to Nak-Dong river linked to Mt. Baek-Yang and Mt. Seung-Hak. Regarding the Korean peninsula as one natural ecosystem, the large branch of Mt. Gum-Jung. Therefore, it is very important to primarily preserve it from ecological point of view. In case of constructing the forest road, the width of the road is 4 meters approximately, but the actual damaged width of the forest which includes the shoulder of both sides of the road, drainage ditches and the areas cutting the lower plants of trees, will be around 20∼28 meters. Since the forest road paved with concrete pavements and the gravel divides the ecosystem of the forests and thus destroys the ecological system, it should be paved with the natural materials, such as soils, herbals and so forth. The forests of Mt. Gum-Jung which have almost been in the 2nd transitional stage, have some areas showing active ecosystem restoration, such as Carpinus spp., so they should be preserved very thoroughly. The marshy ecosystem of about 27,720㎡ which is at the height of 600meters above sea level, west to North Gate of Mt. Gum-Jung Castle, has the high watertable formed naturally. The existence of the marshy at the near of the mountain top is a remarkably rare phenomenon, the preservation of as the marshy ecosystem is absolutely necessary. At present, this area is completely destroyed by the thoughtless use. Furthermore, the construction of the drainage due to the forest roads may cause the change of the waterable height of the marshy ecosystem. The construction of the forest road near to the to of the mountain, having th egood landscape and the historic relics, results in many problems with the landscape. Putting together, the construction of the forest roads should consider the totality of Mt. Gum-Jung instead of only considering forest preservation. Also the scientific method of a sustainable use should be sought, which fully incorporates the problems such as the width and size of the forest roads, the pavement methods and materials, and the choice of sites without ecological and landscape problems.

다중지능이론에 기초한 러닝 센터 연구

유승희 대구교육대학교 2004 論文集 Vol.39 No.-

立地論에 있어 去來費用理論과 垂直統合에 關한 論議

柳承翰 동국지리학회 1990 東國地理 Vol.- No.11

The attempt of this study is to review transaction cost theory, and to identify its applicability to industrial geography. Transaction cost theory, elaborated by economist, Oliver Williamson following early work of Ronald coase, is an attempt to explain the origin and growth of firm by the comparative efficiency of two economic insitutions, 'market and hierarchy'. To understand vertical integration from the point of the theory, most important are three factors-bounded rationality, opportunism and asset specificity-since by the conjunction of them, classical contract is transformed into small number bargaining, which make 'market transaction' less efficient than 'internal production'. However, without any one of the three factors, the reason for vertical intergration will disappear. Like other industrial organization theories, its main emphasis is given to the firm's internal structure, and consequently, little is directly linked to spatial analysis. Nevertheless, considering spatial linkage as geographical expression of firm's market transaction, some concepts of the theory can provide valuable insights into the analysis of production system and its change. Among them, such factors as asset-specificity and opportunism are considered most useful to industrial geography. However industrial system is too complex to be analysed by only one theory, and some assumptions of the theory are far from the reality. Thus, other complementary theories are needed to explain more correctly our industrial system, and among them 'strategic behavior theory' seems to be crucial for more realistic approach to firm's behavior, though not explicitly discussed here.

Phosphate 유리들의 구조-물성-조성 상관에 대한 연구

류봉기,이승한,이병철 釜山大學校生産技術硏究所 1998 生産技術硏究所論文集 Vol.55 No.-

P₂O -Na₂O-MgO, P₂O-Na₂O 및 P₂O-MgO glass 계에서 조성에 따른 구조변화를 조사하기 위해 glass의 밀도와 물에 대한 안정성 그리고 Raman 과 적외선 흡수 스펙트럼이 측정되었다. 그 결과, P₂O가 60mol% 부근에서 밀도와 물에 대한 안정성의 급격한 증가를 나타내었다. 이러한 변화는 Mg²+ 이온을 중심으로 DBO(double-bonded oxygen)이 배위하면서 glass 구조의 강한 수축을 유발시켜 나타난 구조변화에 기인하는 것으로, Mg²+ 이온을 배위하고 있는 DBO은 이중결합의 성격을 잃어버리고, 다른 하나의 NBO(non-bridging oxygen)과 함께 공명을 일으킨다고 생각된다. Raman, infrared spectroscopy, dnesity, and water resistance in P₂O-Na₂O-MgO, P₂O-Na₂O and P₂O-MgO glass systems were measured to investigate the structural change depending on their composition. The density and water resistance showed an abrupt increase in the range of about 60mol% P₂O. These results can be explained by the structural changes owing to the strong shrinkage of glass network which is caused by the coordination of DBO(double-bonded oxygen) around Mg²+ cations i.e. it seems that the DBOs coordinating Mg²+ cations, losing their characteristics of double bonding, will resonate with other NBOs(non-bridging oxygen).

임신과 동반된 난소섬유난포막종 1례

류은석,김윤숙,전섭,김종수,최승도,선우재근,배동한,양승화 순천향의학연구소 2005 Journal of Soonchunhyang Medical Science Vol.11 No.1

Fibrothecoma are mesenchymal tumors deriving from the ovarian stroma and consisting of theca-like elements and fibrous tissues. The reported incidence is between 0.4 and 8.0% of all ovarian tumors and this side variability can be attributed to the difficulty in differentiation fibrothecoma from ovarian fibroma or hyperplastic stroma nodules. We experienced a rare case of ovarian fibrothecoma in woman at 38 weeks gestation with previous repeat cesarean section diagnosed after tertiary cesarean delivery and bilateral tubal ligation with a brief review of literature.

DES 알고리즘을 이용한 암호화 칩 설계

류승석,정연모 경희대학교 산학협력기술연구원 1996 산학협력기술연구논문집 Vol.2 No.-

The Data Encryption Standard(DES), known as the Data Encryption Algorithm, has been a worldwide standard for 20 years. Although it is showing signs of an old age, it has held up remarkably well against years of cryptanalysis and is still secure against all but possibly the most powerful of adversaries. In this paper, the DES is modeled in VHDL and simulated. Hardware implementation gives much better performance than software approaches.

Desdemona 사랑의 비극적 동인

류승희 대불대학교 1997 論文集 Vol.3 No.1

This paper aims to inquire into the tragic motives of Desdemona's love. She grows to love Othello because she pities the sufferings of his youth. She marries him ignoring of the big difference of his race, culture and age from hers and the objection of her father and the social convention in Venice. It is only based on their love and faith in each other. The primary tragic motive is her exceptional marriage. That's why white Desdemona marries to black Othello. It is unacceptable not only to her father, but also to the Venetian society. However, if Othello had much time to get to know his wife and adapt himself to Venice, he wouldn't fall into Iago's intrigue and result in strangling honest Desdemona. The second one is their characters, a part of which is their tragic flaws. Othello's is his credulousness, violent passion, extreme disposition and racial inferiority complex which has been resulted from the Venetian negative view on black men and gets to be a base of lago's intrigue later. Desdemona has a double-sided character. She is active and self-righteous. She is, on the other hand, innocent and passive. That's why in the first part, she is so active to speak out her opinion on her love and marriage even before the senators of Venice, but in the latter half she is hopelessly passive to protect herself from Othello's suspicion. The third motive is the fact that in their reality there is Iago as an evil element who continuously intrigues to break down their love and marriage because of his hatred and revenge on Othello. lago attacks Othello pertinently in accordance with the circumstances under the mask of honesty. He gets seized with jealousy, which is not his own quality but the result from his failure against lago's attack. In the end, Desdemona is strangled by her husband, Othello, who is a lover she has loved until her death at the sacrifice of everything she has. In conclusion, her love results in a tragic one by the interaction between the characters and flaws of Othello and Desdemona, and their tragic reality

共同不法行爲에 관한 小考

류승훈 한국외국어대학교 외국학종합연구센터 법학연구소 2003 외법논집 Vol.14 No.-