구기자나무의 엽절편체에서 유도된 재분화식물체의 포장생육 특성

김동찬,정해준,민변훈,양덕춘,김수동,이봉춘,Kim, Dong-Chan,Chung, Hae-Joon,Min, Byung-Hoon,Yang, Deok-Chun,Kim, Su-Dong,Lee, Bong-Chun 한국식물생명공학회 2002 식물생명공학회지 Vol.29 No.2

포장에서 자란 '청양'의 상부 잎 절편체 유래의 캘러스에서 200개체의 유식물체를 분화시켜 194개체를 포장에 정식한 후 2년 동안 특성을 조사하였다. 잎의 형태는 모본과 같은 타원형이 66.1%였고, 모본과 다른 난형 22.2%, 도란형 7.2%, 장타원형 2.6%그리고 피침형이 2.1%였다. 또한 재분화된 구기자의 포장생육특성을 검정한 후 열매의 크기가 커지고 수량이 증대된 계통군 5계통 (99741, 99781, 99854, 99870, 99886)과 열매가 커진 계통군 4계통 (99774, 99831, 99840, 99849), 잎이 두꺼운 특징을 보인 2계통 (99747, 99783), 그리고 액아에서 신초가 많이 발생되는 다분지성의 초형변이 계통군 2계통 (99797, 99892) 등 13계통을 선발하였다. 열매의 변이를 나타낸 체세포 변이체간의 생산성을 비교한 결과, 대과와 다수확 계통으로 선발한 5계통들은 '청양'에 비해 과장이 2.1∼2.7 mm 길었으며, 10a당 생산량은 15∼30%가 증수되었다. 초형변이를 나타낸 개체간의 엽수량을 비교한 결과 대소계통인 CL1-48에 비해 99892계통이 7.2% 증수되었고 가시가 발생되지 않았으며 잎이 유연한 특징을 보였다. 194 plantlets regenerated from leaf explants of boxthorn 'Cheonyang' were cultivated to investigate their morphological characteristics in the field for 2 years. Based on the morphology of leaves, 66.1% of them had elliptical type leaf, the same as that of mother plants, while 22.2% in oval type, 7.2% in obovate type, 2.6% in long-obvate type and 2.1% in lanceolate type. They were classified to 4 groups; group A was selected with both high fruit size and fruit yield, group B with only high fruit size, group C with larger or thicken leaf, and group D with multiple brenches. In comparision of production efficiency between the selected groups and mother plants, group A (99741, 99781, 99854, 99870 and 99886) were longer (2.1 to 2.7 mm) in length of fruits and higher in fruit production (15 to 30%) as compared to mother plants. Croup D (99797 and 99892) was higher in leaf production (7.2%) as compared to boxthorn 'CL1-48', which is the highest in leaf production among boxthorn veriaties.

가로 활성화를 위한 가로변 노천카페의 유형별 설계요소 평가

김동찬,최우영,Kim, Dong-Chan,Choi, Woo-Young 한국조경학회 2013 한국조경학회지 Vol.41 No.2

The purpose of this study is to categorize the types of sidewalk cafes, and to evaluate design factors with types of sidewalk cafes for street revitalization. Consequently, it may suggest efficient and systemic policies for the guidelines of sidewalk cafes. To ensure this end, the types of sidewalk cafes were categorized from the street relationship perspective by site investigation. A literature review and importance analysis were used to select the evaluation criteria, and the data were analyzed by statistic methods such as descriptive analysis and factor analysis. As a result, five main factors of the evaluation criteria were contracted: accessibility, aesthetics, identity, environmental, culturedness. Cumulative factor loading of these five factors was 68.731%, which was quite high. And the evaluation using the Likert scale was performed by 4 experts. Types of sidewalk cafes were categorized into 5 types: protruding, gating, blending stereoscopic, elevation angle, and sign provision from the street relationship perspective. On the evaluation by type, aesthetics and culturedness were the worst evaluated in the protruding type and the gating type, culturedness was the worst in the blending stereoscopic type, accessibility, aesthetics, culturedness were the worst in the elevation angle type, and accessibility, identity, culturedness were the worst in the sign provision type. On the evaluation by the indicators, culturedness was the worst evaluated, and on the evaluation by criteria, 'safety for impaired persons', 'interest of programs', 'openness of entrance' were the worst. It is recommended that a survey of importance-performance analysis focused on users be conducted.

관련법규 변천이 아파트단지 내 어린이놀이터 변화에 미치는 영향 연구 - 서울시 소재 현장을 중심으로 -

김동찬,서주환,박유정,Kim, Dong-Chan,Suh, Joo-Hwan,Park, You-Jeong 한국조경학회 2009 한국조경학회지 Vol.37 No.2

This study is an analysis of the design changes of children's play facilities and the related rules and regulations which causes these changes. Accordingly, it is noticed that a site's change of design by legislation and by yearly alternation influences playground design. First, after revising the provisions for the distance from roads and parking lots, the constructing of safety fences between play facilities and the using of durable materials, alterations of the designs have been made a reality. Second, the design changes after the period of regulation transitions were caused by provisions related to the shelter of evergreens and conditions of the sun. Third, the changes of the playgrounds were related to the substitution of exercise facilities for the local residents and in carrying out a hygiene exam more than twice a year. Because a lack of regulatory standards for the design of playgrounds resulted in compliance based on individual interpretation and because a substitution of exercise facilities is part of the way to alleviate these regulations, the conditions of the site under investigation could be projeced. By such changes of regulations and analysis of alterations of playground design, programs for improvement were suggested. It turned out that the composition of the concrete standard in conformity with regulations required closer observance. Moreover, design standards for children's playgrounds are needed, such as the provision of variation in external appearance, the creation of more flexible layouts and the outlining of spaces by themes.

고효율 연소촉진제 개발에 의한 중질유 연소시설의 Dust 발생 저감과 연료절감 효과 분석

김동찬,Kim, Dong-Chan 환경보전협회 2006 환경정보 Vol.28 No.365

'만병의 근원' 스트레스를 조절한다

김동찬,김경태,Kim, Dong-Chan,Kim, Gyeong-Tae 한국과학기술단체총연합회 2005 과학과 기술 Vol.38 No.7

투명반도체에서 나노구조의 응용

김동찬,조형균,Kim, Dong-Chan,Jo, Hyeong-Gyun 한국전기전자재료학회 2009 E²M-전기 전자와 첨단 소재 Vol.22 No.1

都市公園 利用者의 動線類型 및 그 發生要因에 關한 硏究

김동찬,Kim, Dong-Chan 한국조경학회 1990 韓國造景學會誌 Vol.18 No.3

The main purpose of this study is to suggest fundamental materials and a guideline for design through grouping of the users' use route patterns and analyzing determinants to choose those route patterns in urban parks. Study sites were Jungang, Dlseong, and Beomeo park, where located Taegu city-Key results obtained through a series of investigation were as follows : When Users come in and out urban parks, most orientations of their use routes were counterclockwise, and not in such cases, greatly affected by facilities arrangement. There were a large number of users in the main route placed the principal facilities. Users' use route patterns were grouped by their characteristics, which were circulation, semi-circulation, irregular, and piston type. And all the types except piston type can be subdivided into spoon and loope type. Factors analysis to the types produced five meaningful patterns of variables. Five factors were named as dimension of characteristics : Park composition factor, facilities use factor, users' personal factor, park use behavioral factor, routes choice factor.

울산신항 남방파제 대형케이슨 제작, 거치

김동찬,Kim, Dong-Chan 한국건설관리학회 2007 건설관리 : 한국건설관리학회 학회지 Vol.8 No.4

생태체험관광 활성화를 위한 어촌체험마을의 선택속성 연구 - 전문가 및 선감어촌체험마을 체험객을 대상으로 -

김동찬,최우영,Kim, Dong-Chan,Choi, Woo-Young 한국조경학회 2013 한국조경학회지 Vol.41 No.6

The purpose of this study was to derive selection attribute of fishing experience villages, and to analyze the importance and performance on targeting experts and experienced tourists. Consequently, it could suggest implications for the guideline and the evaluation criteria of making fishing experience villages for the revitalization of eco experience tourism. Therefore, in this study, literature investigation and IPA analysis were used by Microsoft Office Excel 2010, SPSS 20.0. As a result, the 'variety of local foods and specialties' was the most urgent attribute to require intensive management strategy. And it is recommended to improvement about 'attributes related residents' because it were insensitived on the recognition by users. Satisfaction of 'appropriateness of coast' was the lowest, but the efficiency was quite high. Finally, not only 'the area of control' but also 'the area of influence' should be reviewed as an important aspects on developing the fishing experience village. The significance of this study is to derive selection attributes of making fishing experience villages for revitalization of eco experience tourism, and to suggest strategy directions based on IPA analysis result by experts and experienced tourists. But in this study, the site was limited to Gyeonggi-do, so it is recommended to expand further.

기생충 박멸은 이렇게 하자

김동찬,Kim, Dong-Chan 한국건강관리협회 1976 건강소식 Vol.4 No.10