http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 장동수 ( Dong Su Jang ) (검색결과 39 건)
- 무료
- 기관 내 무료
- 유료
-
-
장동수,신광선,Jang, Dong-Su,Sin, Kwang-Sun 한국조경학회 2010 韓國造景學會誌 Vol.37 No.6
This study was carried out in order to propose a planning index for improved school forests in Gyeonggido. For the purpose of this study we selected 42 out of 75 school forests established during 2005 in Gyeonggido. All 42 school forests were surveyed and analyzed by frequency, cross tabulation, and group average analysis with SPSS 12.0 version. The present condition of the school forests was analyzed with in conjunction with items such as the surrounding environment, centralization, and locational characteristics as nominal points. Other items: trees, shrubs, pavement, fruit trees, transplantation, evergreen trees, and recreation facility content percentage were analyzed as a proportion point. After reviewing the literature and analyzing the present condition of school forests, we constructed a conceptual framework and formulated a hypothesis for this research. Data were obtained through a questionnaire, given to 98 students majoring in landscape architecture at Hankyong University in 2007. Results showed that the primary variables for tree health were soil compaction and the depth of soil filling. They were the most serious factors that deteriorate the health of trees. Based on the relationship between tree health and growing conditions, trees inside the school forest should be managed to provide more growing space and less abuse. The minimum area for trees inside the school forest for good growth conditions should be within the drip lines. We have found that the minimum percentage of tree content is 0.13, which means that more than 130 trees need to be planted over $1,000m^2$ green space. More than 3,580 shrubs need to be planted over $1,000m^2$ green space. The pavement area should be controlled to less than 19% of the total size of the school forest area. Finally, more than 39 trees out of 100 trees planted should be evergreen. The research results suggest that the construction planning index of Gyeonggido school forest be recommended in the planning and development process of the construction project carried out every year. 최근 서울시를 비롯해 지자체 중심으로 실시되어온 학교 옥외환경 개선사업은 학교구성원이 함께 참여하는 과정으로 진행되지 못하거나, 전시 행정적 측면이 강조되는 등의 문제점이 꾸준히 제기되어 왔다. 그 결과, 최종 결과물에 치중하기 보다는 과정을 중시하고, 학교구성원 스스로 함께 가꾸어 가는 학교숲 조성사업의 활성화가 요청되고 있다. 더욱이 조성 부지의 규모나 입지, 지역별 여건, 학교별 예산 등의 차이점을 고려하지 않고 균등하게 예산을 지원함으로써 시설물 위주로 계획되어 조성이후 울창한 숲의 형태를 이루지 못하고 그늘이 적은 녹지공간이 되는 문제점이 발생되고 있다. 따라서 본 연구는 2005년 학교숲이 조성된 경기도 한강이남 지역의 42개교를 대상으로 조성결과를 객관적으로 평가하여 학교숲 계획의 현황과 문제점을 파악하고 계획지표를 추정해 보고자 한다. 학교숲의 현황파악을 위해 비율로 산정한 변수는 녹지면적, 식재밀도, 교목, 관목, 상록수 등을 설정하였고, 여기에 각종 시설물의 종류와 배치, 관리상태 등을 설정하였다. 이러한 각 변수의 값은 학교숲 계획 및 설계도면과 현장답사를 통해 평가하여 작성한 후 SPSS Statistics 12.0(SPSS Inc., 2003)프로그램을 활용하여 분석하였고, 그 결과 경기도 학교숲의 현황과 문제점을 파악하였다. 본 연구는 이러한 결과를 바탕으로 경기도 학교숲의 개선방안을 모색하고 바람직한 학교숲 식재를 위한 지표를 제안하였다. 연구 결과, 학교숲 조성지표중 교목비율 0.13는 예를 들면 $1,000m^2$의 면적일 경우 교목 130주 이상이 식재되는 것이 바람직함을 시사해 주고 있다. 마찬가지로 관목비율 3.58는 3,580주의 최소기준을 갖는다고 볼 수 있는데, 이를 간략히하면 관목은 약 3,600주 정도가 적정한 것으로 산정되었다. 또한 포장비율의 경우에는 포장면적 대비 전체계획부지 면적의 비율을 말하므로 0.19이란 계획부지 면적에서 포장면적을 최대 19%까지만 확보하고 최소 녹지면적율이 81%가 되어야 함을 의미하므로 대략 학교숲의 포장율은 20% 미만으로 계획해야 함을 알 수 있다. 상록수 비율의 경우에는 약 100주의 교목을 식재할 경우 39주, 즉 40주 정도가 적정한 것으로 나왔다. 학교숲 조성지표를 보다 폭넓게 적용시키기 위해서는 경기도 전체 학교숲을 대상으로 한 설문조사가 필요하고, 학생만이 아니라 담당공무원, 학교당국자, 관련 산업 전문가 등을 대상으로 확대되어 실시되어야 할 것이다. 그리고 최종적으로 학교숲 조성지표가 완성되면 기존 연구에서 나타난 참여 활동 프로그램도 도입되어 더욱 지역주민들에게 사랑받는 학교숲으로 발전될 수 있을 것이다.
-
도시 주차장내 수목그늘의 경제적 이익 연구 -미국 캘리포니아 데이비스 대학 주차장을 사례로-
장동수,Jang Dong-Su,McPherson E. G. 한국조경학회 2006 韓國造景學會誌 Vol.33 No.6
The climate of urban area is an unstable type with considerable seasonal variation in precipitation wind speed, and temperature and it grows worse. Besides, ozone is a serious air pollutant in most of large cities. So worldwide, some of large cities are investing in forestry options to offset their climate problems, but lack of information has hindered comparisons of urban un cost effectiveness to other options. This research intends to study the economic benefits of tree shading of 19 parking lots in UCD campus. The economic benefits of tree shading are air conditioning savings, air quality, stormwater run-off, and other benefits. Especially, this study focuses how much the economic benefit of parking lot shading has been increased from 1995 to 2003 year by aerophoto. Some data on dimensions of parking lots and the number, size, tree species, and location of trees around each parking lot was inventoried. Two aerophotos(1995,2003) were used in order to analyze the increasement of tree canopy in 19 parking lots for 8 years. However, increasing coverage of trees and managing them for healthy growth would not be sufficient for avoiding adverse impacts by future climate change. Additional measures should be followed such as an increase of energy use efficiency and development of substitute energy. For example, coverage of trees help to save cooling energy by blocking solar radiation reaching parking cars and building structures through shading, and creating cool micro-climates through evapotranspiration. They also reduce heating demand by decreasing air infiltration and heat conduction out of the interior of buildings. Proper arrangement of vegetation over the parking lots can reduce cooling and heating costs. So proper planting design around hard space paving including species selection and location can significantly save cooling and heating energy. And a reduction in car and building's heating and cooling costs results in the reduction in energy demand which causes to emissions of air pollutants. Total increased tree canopy from 1995 to 2003 is $8,470.45m^2$ and the economic benefits is US$ 5,282.10. The economic benefit of one tree has been US$ 7.21 for 8 years. And an annually increased benefit is US$ 0.9 per a tree. If this kind of study is applied to studying the economic benefits of tree canopy in parking lots of Korea, it could result in guidelines of tree planting of parking lots. Because the trees selected for planting in parking lots were not suitable for an environment, the guidelines should contain a recommended list of trees. The guidelines should propose the shading percentage of parking lot when we plan a parking lot and contain the maintenance of trees in order to maximize the economic benefits of tree canopy.
-
-
-
-
스퍼터 전력에 따른 ITO/PET 전도막의 특성에 관한 연구
장동수(Dong-Su Jang) 산업기술교육훈련학회 2011 산업기술연구논문지 (JITR) Vol.16 No.4
ITO films on PET substrate were prepared by DC magnetron sputtering method using powdery target with different deposition conditions. In addition, the electrical and optical properties were investigated. As the sputtering power was higher, the resistivity of ITO films increased. The optical transmittance deteriorated with increasing sputtering power and thickness. From this results, we could deposited ITO films with 8×10-3 Ω-cm of resistivity and 80% of transmittance at optimal conditions.
-
-
고분자 전해질 연료전지 금속 분리판 적용을 위한 탄소 박막의 증착과 내식성 평가
장동수(Dong-Su Jang),이정중(Jung-Joong Lee) 한국표면공학회 2015 한국표면공학회지 Vol.48 No.3
Carbon thin films were deposited on STS 316L sheets by inductively coupled plasma enhanced magnetron sputtering with or without substrate bias voltage. Typical Raman spectrum for amorphous diamond-like carbon (DLC) was obtained, and the interfacial contact resistance (ICR) was measured to show its conductive nature. The electrochemical impedance spectroscopy (EIS) was used to investigate the corrosion mechanism of the carbon coating under the polymer electrolyte membrane fuel cell (PEMFC) condition. According to the porecorrosion mechanism, the electrolyte penetrates the carbon coating through the pores and reacts with the substrate. As the substrate corrosion proceeds, the pore enlargement occurs and the surface area of the substrate exposed to the electrolyte. Applicability of the carbon coating for the PEMFC bipolar plate was evaluated by potentiodynamic polarization experiments. Finally, an adhesion problem was briefly considered.
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
