• Title/Summary/Keyword: Ecological concept

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Analysis on the Mitigation Effects of Urban Heat Island through Creation of Water Space - A case study of Yeol-Mae village Apt in Daejeon's Noeun District - (수공간 조성을 통한 도시의 열섬현상 저감효과 분석 - 대전시 노은지구 열매마을아파트를 중심으로 -)

  • Park, Ki-Yong;Lee, Sun-Woo;Shim, Young-Ju;Hwang, Hee-Yun
    • KIEAE Journal
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    • v.11 no.5
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    • pp.13-18
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    • 2011
  • The overall aim of this study is to mitigate urban environmental problems. In particular, to reduce the effects of urban heat island phenomenon which is one of the urban planning perspective. This study focused on the analysis of the relationship between the urban heat island effect and the thermal and wind properties. To do this analysis, water space was virtually made at Yeol_Mae village Apt. Because it is very difficult to set up water space for the existing apartment complexes due to realistic constraints. This study, therefore has a strong sort of guidelines to create water space for newly formed city. It was based on the concept of virtual city through an in-depth analysis on reduction of urban heat island effects for the existing apartment along with creation of water space. To analysis site, Envi-Met Model developed by Michael Bruse was used. The results are as follows. The temperature went from 298.9K to 297.82K and The wind speed went from 1.42m/s to 1.43m/s. The results are slight in this study because creation of water space is planned to a small area of an apartment complex. But if the water space would be applied to a whole city, the mitigation effect of urban heat island would be bigger.

The Educational Meaning of the Process of 'Soil' Theme for Five Years Old (만 5세 유아의 '흙' 주제 탐구 과정에 대한 교육적 의미 탐색)

  • Ahn, Gyoung Suk
    • Korean Journal of Child Education & Care
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    • v.17 no.4
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    • pp.51-69
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    • 2017
  • The purpose of this study is to derive educational meaning by analyzing 5-year-olds' activities process in soil-themed activities about 'soil' theme which was investigated by examination and teachers' reflective journals. For this, data of 20 children in 5-year-old class were collected and analyzed. As a result, firstly the value of children's pre-concept evaluation on soil theme was identified. Secondly, 'soil' theme was found to have a positive influence on children's feeling of wonder about nature and their ecological perspective taking ability. Thirdly, children could comprehensively investigate science education fields such as biology, ecology, and earth science in the process of investigating soil theme. Fourth, children came into interest in the process of understanding the relationship between soil and human through media. Lastly, children were found to compose scientific knowledge while investigating soil, through naturally using the method of inference.

A Study on the Development of Sustainable Durability Design System for Reinforced Concrete Structure under Chloride Attack Environments (염해 환경하의 철근콘크리트 구조물의 친환경 내구설계 시스템 개발에 관한 연구)

  • Kim, Rak-Hyun;Roh, Seung-Jun;Tae, Sung-Ho
    • KIEAE Journal
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    • v.11 no.4
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    • pp.87-94
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    • 2011
  • This study was suggested to develop sustainable durability design system and proposed the plan to evaluate design conditions that meet the intended service life and $LCCO_{2}$ reduction level of reinforced concrete structure easily from the early design stage. For that the W/B and covering depth of the concrete structure were calculated through calculation of service life based on standard specification expression and the quantitative reduction rate of the vertical member of reinforced concrete structure by the calculated W/B was applied. Life cycle of building classified into construction stage, operation stage, maintenance stage, and demolition/disposal stage and the method of $CO_{2}$ evaluation of each stage was proposed. For construction stage, the major construction materials that take up over 80% $CO_{2}$ emitting during building construction were selected and the $CO_{2}$ evaluation method for 5 standard apartment houses was proposed. Also, for operation stage, $CO_{2}$ emission was calculated through calculation of heating load by energy efficiency rating certification system. For maintenance stage, $CO_{2}$ emission was calculated using concept of re-construction by life and for demolition/disposal stage was calculated with the use of construction standard estimate. As a result of the case study by such evaluation methods, 80 years of service life and 17 specifications of sustainable durability design that meet the 40% intended $LCCO_{2}$ reduction level were deduced. The Maximum $LCCO_{2}$ reduction rate was analyzed by 47.2%.

Restoration design of step-pool sequence in mountain streams (산지하천의 스텝-풀 연속체 복원설계)

  • Kim, Ki Heung
    • Journal of Korea Water Resources Association
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    • v.53 no.1
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    • pp.29-43
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    • 2020
  • The purpose of this study is to propose the design criteria and detailed design model by reviewing the issues related to geometry, formation process, destruction process, hydraulic function, restoration and ecological function of the step-pool from the existing research results, to apply the step-pool sequences to river restoration. Based on the analysis and review results, the design criteria for the structure and size of the step-pool are presented as ratio of the step spacing and the channel width, ratio of the unit step slope and channel slope, and ratio of step height and the particle size. To ensure structural stability of the step, stability analysis method of overturning based on the keystone theory was proposed as a design criterion. As a detailed design concept, a layout model was proposed by applying the imbricating structure of keystones and arch stones to the planar, longitudinal and transverse configurations of the step-pool.

Evaluation of Thermal and Visual Environment for the Glazing and Shading Device in an Office Building with Installed of Venetian Blind (베네시안 블라인드가 적용된 오피스 건물의 외피 투과체 계획을 위한 열·빛 환경 평가에 대한 연구)

  • Kim, Chul-Ho;Kim, Kang-Soo
    • KIEAE Journal
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    • v.15 no.6
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    • pp.101-109
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    • 2015
  • Purpose: Glazing and shading devices influence a lot on the thermal and visual environment in office buildings. Solar heat and daylight are contrary concept, therefore proper arrangement of thermal and optical performance is needed when designing a glazing and shading devices. The purpose of this study is to examine the conditions of the glazing and shading devices available for promoting the reduction of cooling loads + lighting loads and the improvement in thermal comfort and visual comfort for the summer season in an office building installed with venetian blind. Method: This study established 12 simulation cases which have different glazings and the positions of venetian blind for evaluating different thermal and optical performance. And by using EnergyPlus v8.1 and Window v7.2 program, we quantitatively analyzed cooling loads + lighting loads, thermal comfort and visual comfort in an office building installed with the glazing and shading devices. Result: Consequently, Case 9(Double Low-E+Exterior Blind) is the best arrangement of solar heat gain and daylight influx, thereby becomes the most excellent case of reducing cooling+lighting loads(46.8%) and simultaneously becomes the enhancement case in thermal comfort. Also, DGI(Daylight glare index) under clear sky conditions in summer was evaluated to be 19.6, and thereby satisfied the recommendation level of allowing visual comfort.

Preliminary Design for Preparing a Natural Learning and Experimental Area in Bukchun and Boundary(II) -Determination of Flood Level/Tree Planting, Analysis of Bukchun Scene- (북천지역 자연학습 체험단지 조성을 위한 기본 계획(II) -홍수위 및 식수결정, 북천 경관분석-)

  • 정종현;최석규;조세환
    • Journal of Environmental Health Sciences
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    • v.28 no.5
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    • pp.13-21
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    • 2002
  • This study analyzed the characteristic of basic river structure, a flood level, the tree planting recommendation and syn thetic design, in order to establish a basic plan for preparing a natural practical area of environmental ecosystem at Bukchun and its surroundings. It was also investigated based on the opinion of citizens, geographical condition and the equipment/utilization examination of Bukchun which were included ecological circumstances, and thus provided a composite item for managing the natural river. This study also considered the development of the river in terms of culture, environment and ecology concept. The results were summarized as followed. Bukchun showed that the speed of a funning fluid is very fast on a period of flood. but very slow in a period of water shortage about 0.02 m/s. To prevent the speed change of a running fluid by a steep slope in a riverbed, there established Dongchun sluice gates under a bridge, including three sluice gates under a bridge, but there occurred extremely a riverbed erosion and corrosion section. The result of comparison between real flood degree and prediction flood data, there should perform a countermeasure the riverbed structure regulation of this area. Also, it was needed an exhaustive flood management in summer. According to the Bukchun and Hyungsangang riverbed investigation, there were needed preparation for natural/practical area and ecology Park development in the future. This study was investigated tree Planting/flower/blossom around the Bukchun and its surroundings. It was recommended willow, Italian poplar, bamboos and cherry blossoms in the Hyungsangang and Bukchun. There exist together historical space, environment space iud have enough possibility both natural learning space and civil rest space. And, it is possible to compose ecology natural learning and experimental area.

International Trends of Environmental Specimen Bank and Our Response (환경시료은행의 국제적 동향 및 우리의 대응)

  • Kim, Myung-Jin;Yoo, Byung-Ho;Lee, Suk-Jo;Lee, Jong-Chun;Lee, Chul-Woo
    • Journal of Environmental Impact Assessment
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    • v.17 no.4
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    • pp.225-233
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    • 2008
  • An Environmental Specimen Bank (ESB) is an archive for samples that can be used to document and assess the quality of the environment in which we live. An ESB program looks at changes in the concentration of human and environmental specimens over long periods of time through retrospective analysis of archived samples of a particular area collected at regular intervals. The idea of ESB was first proposed by German and American scientists in the early 1970s and has been established since 1979 in Germany, USA, and Japan. Korea plans to establish a National Environmental Specimen Bank (NESB) in 2010. The NESB will be able to assess and improve the quality of analytical measurements as well as to compare the past and current environmental quality as a time capsule. The concept and design for the NESB facility was developed and its Standard Operation Procedures (SOPs) are being developed based on an evaluation of ESBs and SOPs of Germany, USA, and Japan. Environmental specimens proposed for banking are based on typical representatives of every level of the food chain from each type of ecosystem that are widely distributed thus enabling comparisons between different sampling areas. Through retrospective analysis of environmental specimens, the NESB will improve the reliability of environmental monitoring, ecological risk assessment, and health impact assessment.

A Study on the Green Design for a Drink Vending Machine (음료자동판매기의 그린디자인에 관한 연구)

  • 문금희
    • Archives of design research
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    • no.18
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    • pp.177-186
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    • 1996
  • With the change of patterns and the environment of the national standard of living the prohlem of environmental pollution became increasingly serious. Because of the enormous increase of various kinds of used and (after utilization) useless articles, efforts to save resources as well as the environment and the promotion of reprated utilization and recycling are inavoidable. The recognition of an environmental an health problem, and the desire for nonpollution created a desire for environment-friendly products in order to avoid an environmental consumptionism. Drink vending machines making use of vessels only once are closely related to the environmental problem. It is therefore necessary to develop an ecologically designed vending machine. In this study the backgrounds and concepts of green design, classification, construction and the environment of a drink vending machine arc analyzed. From this st1.rting-point a concept for the design of a drink vending machine is developed by two concepts : Type A (seperated-gathering type) and Type B (recycling type). Then three defferent types of vending-machines arc introduced a wall -adherable type, a center est1.blishable type and a desk top type. The conclusion of the text is threefold. There are needs for an ecological design of vending machines, ergonomIc considerations and a harmonization of the styldapperarance) of the machine and its circumferences.

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Types of Contemporary Emotional Designs : A Focus on the Correlation with Social Paradigms (현대 감성디자인의 표현유형 분석 : 사회적 패러다임과의 연관성 분석을 중심으로)

  • Lee, Jeongmin
    • The Journal of the Korea Contents Association
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    • v.13 no.12
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    • pp.168-183
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    • 2013
  • Contemporary era has witnessed a diversity of emotion and emotions being expressed through consumption. This paper examines the relationship between social paradigms and emotional design by means of literature study. In sections 2 and 3, I examine the prevalent social paradigms and the concept/development of emotional design. In section 4, I show the correspondence between social paradigms and specific types of emotional design. More specifically it is shown that "pluralism and decentrality" has led to fun design, individual design and participative design; "emotional revolution" has given rise to multi-sensory design, design with positive feelings, design with negative feelings and aesthetic design; "non-materialistic values" have their correspondence in design as performance and story-telling in design; and "organic worldview" finds its expression in ecological design with a wellness emphasis, and in interactive emotional design.

A Study on Body Painting according to Nature Art Types (자연미술 유형에 따른 바디페인팅 연구)

  • Park, Jeongshin
    • Journal of Fashion Business
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    • v.18 no.4
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    • pp.66-79
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    • 2014
  • Unlike other body arts, body painting illuminates the value of art using eco-friendly formative activity and natural environment and highlights the need of eco-friendly activity. However, although body painting has focused on forming right relationship between human beings and nature, there are few researches which are linked with nature art. Therefore, the purpose of this study is to argue the need to study body painting as nature art in connection with natural environment and analyze body painting according to nature art types. The study methods included both theoretical review and empirical review. The theoretical review examined the concept and characteristics of nature art through previous researches and literature and the empirical review looked into the types and works of nature art and applied them to body painting works. The results were as follows. First, an installation type was possible by arranging and attaching certain materials to the body. Second, a physical type was possible by representing body itself as the part of nature. Third, a symbolic type was possible by making body appearance as a some symbol based on artist's idea. Fourth, a sound type was possible by stimulating auditory hallucination using the nature of objects and sensing a sound. Fifth, an ecological type was possible by conveying the message of living things in nature to the body. Sixth, an interior type was possible by inducing indoor installation of works. Seventh, a poetic type was possible by making one feel a poetic inspiration expressed in nature using the mystery of the sea and a simple sequential pattern of floral leaves. Eighth, a drawing type was possible by adding artist's intentional hand with a pictorical technique. Ninth, a indigenous type was possible by reproducing South American indian's primitive style. The review of this study suggests that body painting works have been expressed in experimental and temporary arrangement like nature art in nature and can be applied according to nine types of nature art.