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      • KCI등재
      • KCI등재

        학교숲의 식재현황 및 인식 분석 -경상북도 지역을 대상으로-

        장정선 ( Jung Sun Jang ),정성관 ( Sung Gwan Jung ),이우성 ( Woo Sung Lee ),유주한 ( Ju Han You ),김경태 ( Kyung Tae Kim ) 한국환경복원기술학회 2011 한국환경복원기술학회지 Vol.14 No.3

        The purpose of this study is to establish the strategic direction of school forest based on the analysis of planting species and status and environmental consciousness of students on 9 elementary schools in Gyeongsangbuk-Do. According to the results of analysis of planting status, the green space area of Ahwa elementary school was increased as 2,300m2 and the green space area of most schools was increased more than 500m2 by the construction of school forest. The planting species were surveyed as 109 species in total and the deciduous broad-leaf trees and herbaceous plants were identified by each 29 species. As a result of analysis of elementary school students` awareness on school forest using surveys, the ratio of students that know school forests is 58.9% and the ratio of participation is 20.7%, that is very low. Finally, in the direction for the desirable construction of school forest, the students evaluated by preferring the evergreen broad-leaved trees, flowering trees and fruit trees and they required the development of teaching materials and program and the quantitative increase of forest.

      • KCI등재
      • KCI등재

        우유 첨가에 따른 증편의 품질 특성

        장정선(Jung Sun Jang),박영선(Young Sun Park) 동아시아식생활학회 2008 동아시아식생활학회지 Vol.18 No.3

        In order to improve the insufficient protein content of Jeung-Pyun with respect to sitology, as well as its fermentation process, this study prepared Jeung-Pyun doughs containing 0, 5, 10, 15, and 20 g of milk, respectively, and examined their mechanical and functional characteristics. The internal structure of the Jeung-Pyun was observed by SEM. With regard to color, the L-value increased with increasing amounts of added milk, and thehighest value (65.43) occurred in the group containing 20 g of added milk; however, there were no significant differences among groups. The group containing 20 g of added milk also presented the highest a-value, and the samples with added milk had higher b-values than the control. At 8 hours of fermentation, the 10 g- and 15 g-added milk groups had viscosities of 5726.67 and 6600 respectively; viscosity increased with increasing amounts of milk, and the added-milk groups had significantly higher values than the control group. Hardness also increased with increasing amounts of added milk. However, there were no significant differences in resilience and cohesive power among the groups. The groups containing 5 and 10 g of added milk had the lowest cohesion and break values. For appearance, the group without added milk had the whitest color. Pore size decreased and showed less uniformity as the amount of added milk increased. The unique tackju aroma of Jeung-Pyun decreased significantly as the level of added milk increased, and the 20 g addition presented the lowest value. The 10 g-added milk group had the highest level of sweetness, and sourness increased with increasing amounts of added milk. For softness, the control group was estimated as slightly softer than theadded-milk groups. The stickiest sample was generally preferred when considering taste, white color, and sweetness. Among the quality characteristics, having greater stickiness, resilience, moisture, and softness was better in terms of chewing. Overall, the size of the Jeung-Pyun containing 10 g of milk was even and well-developed.

      • 궤도시스템의 궤도링크와 노면과의 상호 접촉연구

        장정선(Jungsun Jang),류한식(Hansik Ryu),최진환(Jinhwan Choi),배대성(Daesung Bae) 한국자동차공학회 2002 한국자동차공학회 Symposium Vol.2002 No.11

        When the tracked vehicle is running on various types of terrain, the physical properties of the interacting ground<br/> can be different. In this paper, the interactions between track link and soft ground are investigated. Surfaces of a track<br/> link and triangular patches of ground are implemented for ground contact detection. Bekker’s model is applied for<br/> pressure-sinkage relationship and the shear stress-shear displacement relationship proposed by Janosi and Hanamoto<br/> is used for tangential shear forces. The repetitive normal loads of a terrain are considered because a terrain element is<br/> subject to the repetitive loading of the roadwheels of a tracked vehicle. The methods how to apply Bekker’s soil<br/> theory for multibody track system are proposed in this investigation. Contact force at each segment area of a track<br/> link is computed respectively by using virtual work concept.

      • KCI등재

        삼각퍼지수를 활용한 학교숲 만족도 분석

        이슬기,장정선,정성관,유주한,Lee, Seul-Gi,Jang, Jung-Sun,Jung, Sung-Gwan,You, Ju-Han 한국조경학회 2009 韓國造景學會誌 Vol.37 No.3

        학교숲은 도시숲의 유형중 하나이다. 도시학교는 적당한 거리에 적당한 면적을 유지하고 있어 학교숲의 조성은 도시에 많은 숲이 조성되는 효과를 준다. 또한, 학교는 학생들이 오랜 시간 머무르는 장소로 학생들의 환경교육의 장으로써의 역할을 수행할 수 있다. 그러나 현재 조성된 학교숲은 학생들의 요구나 참여가 배제된 채 결과 중심의 사업이 되고 있어 학생들의 환경교육에 큰 영향을 미치고 있지 못한 실정이다. 또한 설문조사를 바탕으로 분석하는 기존연구의 경우, 리커트척도를 활용하여 주관적 판단인 정성적 자료를 정량화 하였다는데 의의가 있으나, 인간의 주관적 판단은 모호한 경우가 많아 일반적으로 정량화하는데 문제가 있다. 이에 본 연구에서는 경상북도에 위치한 초등학교 학생들을 대상으로 학교숲에 대한 객관적인 만족도 평가를 위해 퍼지이론을 활용하여, 학교숲 만족도에 미치는 항목들을 알아보고자 하였다. 연구 결과, '학교 특색'과 '정서 함양' 항목의 산술평균값의 순위와 퍼지이론을 도입한 무게중심값의 순위가 변화됨을 알 수 있었다. 이는 퍼지이론이 인간의 사고와 같은 정성적 자료를 합리적으로 객관화 할 수 있다는 증거가 된다. 또한 학교숲 전체 만족도에 영향을 주는 요인은 '학교 특색' 항목의 회귀계수값이 0.159로 가장 높았으며, 다음으로 '수량 많음(0.142)', '자연 소중(0.136)', '정서 함양(0.120)'순으로 나타났다. 이 연구는 설문의 객관적 분석방법과 학교숲 조성을 위한 기초자료로 활용이 가능하리라 판단된다. Wooded areas that are a part of school campuses are one type of urban forest. Most schools located in an urban environment make an excellent setting for a forest in terms of location and area. These kinds of wooded spaces also make the city greener and healthier. As a place where students spend a great deal of time, schools can also be a venue for environmental education. The creation of wooded areas in schools currently has focused on the end result only; by ignoring student needs and participation, these areas have not had a significant influence on student environmental education. Previous studies based on questionnaire survey are significant in that they have quantified subjective qualitative data via Likert Scale. There has been, however, a problem in quantifying the more ambiguous subjective data. Therefore, this paper has attempted to investigate those factors that have an influence on student satisfaction with the wooded areas of their school campus using Fuzzy Theory with elementary school students in Gyeongsangbuk-do. A change was observed in terms of the ranking of arithmetic mean values of 'school peculiarity' and 'emotion evolution' and center of gravity, which has adopted Fuzzy Theory, proving that Fuzzy Theory could rationally objectify qualitative data such as human thoughts. In terms of the influential factors on the satisfaction with school forests(regression coefficient), 'school uniqueness(0.159)' was the highest, followed by 'many trees(0.142),' 'importance of nature(0.136)' and 'emotion evolution(0.130).' This paper may therefore be useful as basic data for objective questionnaire surveys and the development of school forests.

      • 韓國兒童의 血淸鐵 및 鐵結合能에 關하여

        曺準承,蔣貞仙,洪大一 대구보건대학 1977 대구보건대학 論文集 Vol.3 No.-

        韓國人 兒童(6才∼11才)의 血淸鐵, 不飽和鐵結合(UIBC) 및 總鐵結合能(TIBC)의 正常値를 調査하기 위하여 男兒34名과 女兒 34名을 對象으로하여 檢査한 結果는 다음과 같았다. 血淸鐵 : 男兒 135±30 (74-196)㎍/100㎖ 女兒115±34 (47-183)㎍/100㎖ UIBC 男兒 237±41 (155-319)㎍/100㎖ 女兒 225±46 (133±317)㎍/100㎖ TIBC : 男兒 366±32 (302-430)㎍/100㎖ 女兒 330±41 (248-412)㎍/100㎖ %Saturation : 男兒 37.1±8.0(21-53)% 女兒 34.6±11.9(21-59)% 以上의 値들은 成人의 그것과 比較해서 別 差異가 없었다. 그리고 大體的으로 女兒의 값이 男兒의 그것 보다 떨어지는 結果로 보였다. This paper has been caried out to determine the normal values for serum iron and iron binding capacity of Korean children, and to compare with that of adult men Non-festing blood specimens were collected from 34 males and 34 females in the morning (am. 9-10). Serum iron was estimated by the modified method of Barkan-Walker's, and the total iron binding capacity by Ramsay method. The results obtained were as follows: Serum iron: male 135-30ug 100ml (range; 74-196) female 115-34ug 100ml (range; 47-183) U.I.B.C. : male 237-41ug 100ml (range; 155-319) female 225-46ug 100ml (range; 133-317) T.I.B.C. : male 366-32ug 100ml (range; 302-412) female 330-41ug 100ml (range; 248-412) % Saturation:male 37.1-8.0% (range;21-53) gemale 34.6-11.9%(range;21-59) These normal values of children were no significant difference between that of adults which are reported by other investigators.

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