• Title/Summary/Keyword: Sustainable Material

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Polypropylene Bundle Attached Multilayered Stigeoclonium Biofilms Cultivated in Untreated Sewage Generate High Biomass and Lipid Productivity

  • Kim, Byung-Hyuk;Kim, Dong-Ho;Choi, Jung-Woon;Kang, Zion;Cho, Dae-Hyun;Kim, Ji-Young;Oh, Hee-Mock;Kim, Hee-Sik
    • Journal of Microbiology and Biotechnology
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    • v.25 no.9
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    • pp.1547-1554
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    • 2015
  • The potential of microalgae biofuel has not been realized because of the low productivity and high costs associated with the current cultivation systems. In this study, a new low-cost and transparent attachment material was tested for cultivation of a filamentous algal strain, Stigeoclonium sp., isolated from wastewater. Initially, the different materials tested for Stigeoclonium cultivation in untreated wastewater were nylon mesh, polyethylene mesh, polypropylene bundle (PB), polycarbonate plate, and viscose rayon. Among the materials tested, PB led to a firm attachment, high biomass (53.22 g/m2, dry cell weight), and total lipid yield (5.8 g/m2) with no perceivable change in FAME profile. The Stigeoclonium-dominated biofilm consisted of bacteria and extracellular polysaccharide, which helped in biofilm formation and for effective wastewater treatment (viz., removal efficiency of total nitrogen and total phosphorus corresponded to ~38% and ~90%, respectively). PB also demonstrated high yields under multilayered cultivation in a single reactor treating wastewater. Hence, this system has several advantages over traditional suspended and attached systems, with possibility of increasing areal productivity three times using Stigeoclonium sp. Therefore, multilayered attached growth algal cultivation systems seem to be the future cultivation model for large-scale biodiesel production and wastewater treatment.

A Study of Sustainable Architectural Design Elements Based on the Classification of Natural Elements (자연요소 중심으로 분류한 친환경 건축계획 요소에 관한 연구)

  • Yim, Su Hyun;Park, Hyeon Soo
    • KIEAE Journal
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    • v.10 no.5
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    • pp.3-12
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    • 2010
  • Sustainable design is getting to be controversial issue in all industries over the world particularly, in architecture as the amount of energy usage in architecture occupies 40%. Therefore, it is essential to make the standard for the sustainable design. In order to construct the sustainable design, firstly it should be considered that sustainable design elements based on natural resources to increase building energy efficiency is established and classified. The method of sustainable design divides into passive design and active design. Passive design method should be examined with active one simultaneously for more efficient usage of energy. Next, the study is followed how the sustainable design elements is adopted in buildings through the comparison of cases study of domestic and oversea. The result of case study shows similar adoption of sustainable design elements between oversea and domestic. However, the difference is shown in the building orientation and shape and the window size and position in Solar energy as well as high performance structure in Heat energy. These elements are the most significant elements in order to reduce energy load. In oversea, sustainable design is generated by architects, a client, and consultants based on the close cooperation in the beginning of early design phase before deciding building shape and envelope while in the domestic field adoption for sustainable design is conducted after deciding building shape and material. In order to design sustainable architecture more study is necessary in early stage for Zero Carbon and reducing building energy load through relation with specialists, a client and architects.

Analyses and Comparison of Science Content on Education for Sustainable Development in Middle School Science Curriculum (중학교 과학과 교육과정에 제시된 지속가능발전교육 내용 분석 및 비교)

  • Oh, Yoon-Jeong;Choi, Kyung-Hee
    • Hwankyungkyoyuk
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    • v.25 no.1
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    • pp.89-104
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    • 2012
  • This study analyzed content on education for sustainable development in middle school science curriculum of $6^{th}$, $7^{th}$, 2007-revised and 2009-revised. Analyses criteria were developed based on literature reviews. This study developed 8 criteria such as health, climate change, urbanization and rural development, water, biodiversity and ecosystem, energy, disaster reduction and management. The results showed that 6th middle school science curriculum has 4 criteria, $7^{th}$ has 2 criteria, 2007-revised has 8 criteria, and 2009-revised has 7 criteria. This study suggests the need for developing systemized teaching material on education for sustainable development that can be integrated in the science curriculum by pursuing the following tasks: First, the goal of education for sustainable development and its need should be stated in the science curriculum. Second, the class content, themes, objectives, teaching-learning programs on education for sustainable development should be produced. Third, within science curriculum, the content should deal with perspectives and topics, and learning goal must pursue value education.

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Sustainable Fashion Design Module Development for Higher Education: Adaptation of ADDIE Instructional Model

  • Lim, Hye-Won;Burton, Elizabeth
    • Journal of Fashion Business
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    • v.25 no.6
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    • pp.25-45
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    • 2021
  • Due to the fashion industry taking responsibility for their garment manufacturing, a significant number of UK universities are focusing on combining sustainability in their curriculum to support future employees' skills and knowledge in sustainable fashion. A proper understanding of educational and instructional theories is needed to develop effective teaching and learning materials and environments. Therefore, this study aimed to evaluate the Fashion Design module created with consideration of sustainability using ADDIE instructional model. For evaluation, the teaching materials, including the module brief and the PowerPoint slides for each session, were used. Ten students were interviewed and observed along with two tutors, also interviewed to analyze the strengths and weaknesses of the module from a variety of viewpoints. With sustainable fashion being embedded into specialized higher education courses, tutors decided to incorporate sustainability into the module as an introduction to this topical subject in order to build a stronger foundation of knowledge and challenge traditional ways of working. Results showed that combining sustainability into the design and technical sessions had a positive influence on students who built upon their existing knowledge. Tutors researched the need for change within the industry in line with the Sustainable Development Goals and aligned the content to inform the students of the current crisis. This study could provide a guideline to create instructional material for sustainable fashion design courses.

An Analysis of Environment-Friendly Architecture Material Elements (친환경 건축 자재의 요소 분석)

  • Kim, Jin-Woo
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.7 no.2
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    • pp.1-11
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    • 2008
  • Recently, it is throwing the spotlight on environment-friendly architecture for preservation of the global environment throughout the world. At this point in time, home products to have Eco-label in architecture materials is increasing constantly and the demand of environment-friendly building and material is rising. The purpose of this study is to propose a way of development through analysis about necessity and concept of environment-friendly architecture and research into institution and standard for certification of environment-friendly building materials. So, it will make exactly progress to this study that is based on analysis and research of periodical publications, theses, reports of journal and data of the advanced country about environment-friendly architecture.

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Case Study on Sustainable office space of the LEED Green Building in the United States - Focused on the Materials and Resources of Indoor Evaluation Factors - (미국 내 LEED 그린빌딩의 지속가능한 업무공간 사례 연구 - 실내 평가요소 중 재료 및 자원을 중심으로 -)

  • Ha, Sook-Nyung;Han, Young-Ho
    • Korean Institute of Interior Design Journal
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    • v.22 no.2
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    • pp.176-185
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    • 2013
  • (Background)In modern industrial society, the design industry failed to observe the law of nature, destructing it. Regardless its intention, the design industry destructed the environment so that it can't maintain the future life because of waste and disaster. For the purpose, it is important to adopt the technology to reuse the waste resource generated by building or minimize the damage to environment for the resource that can't be recycled. (Methods)On the assumption that the material and resource can be an alternative plan for the design that can make environment be sustained, the study analyzed materials and resources out of superior office space of USA, which were selected by LEED Green Building Rating System. (Results)The analysis result revealed that all cases reused main structural part of existing building and indoor and various materials were reused or recycled. Especially, the materials without or with low amount of VOCs and formaldehyde were used. In order to reduce construction waste, the finish of existing building was exposed as it was, 50% of reused materials were used or disassemblable materials were used. When regional materials are used, there is an advantage to reduce transportation cost and recycle the materials rapidly. Lastly, the environment-friendly certified by FSC was used in all cases. (Conclusion)After all, the material is one of the space design strategies sensitive to environment so it is important to select good material. Harmless, environment-friendly materials applied to sustainable office space contribute to the creation of healthy environment. In addition, the use of recycled materials and reused materials to minimize waste is also essential factor for creating sustainable space.

Analyses of Science Content on Sustainable Development in Middle School Science Curriculum of 2007-Revised (2007 개정 중학교 과학과 교육과정의 지속가능발전 내용 분석)

  • Oh, Yoon-Jeong;Jang, Ji-Young;Choi, Kyung-Hee
    • Journal of The Korean Association For Science Education
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    • v.30 no.8
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    • pp.1075-1083
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    • 2010
  • This study analyzed content on sustainable development in the middle school science curriculum of 2007-Revised. Analyses criteria were developed based on literature reviews. The analyses showed that among 25 units, nine of them dealt with the topics and issues on sustainable development. However, the content had too much partiality for biology and earth science, lacking integration with other areas of science. Results of this study suggest the need for developing systemized teaching material on sustainable development that can be incorporated in the science curriculum by pursuing the following tasks: First, the educational goal of sustainable development and its need should be mentioned in the science curriculum. Second, the class content, themes, objectives, teaching-earning programs on sustainable development should be formulated. Third, within the science curriculum, the content should deal with topics beyond natural or environmental issues, to issues such as economical and socio-political so as to bring better understanding of the concepts related to sustainable development.

A Conceptual Study of Sustainable City Indicators: with Priority Given to Environmental Indicators (도시지속성지표 구축을 위한 개념적 연구: 환경적 지속성지표를 중심으로)

  • Lee, Dong-Kun;Jeon, Seong-Woo
    • Journal of Environmental Impact Assessment
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    • v.6 no.1
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    • pp.33-45
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    • 1997
  • Nowadays, the environmental conservation has become a hot issue. Also the sustainable city issue is recognized as one of the most important tasks to be solved urgently for urban development. Therefore, the current indicator for sustainable city has been analyzed only as a segment of the environmental indicator which is one kind of branch of social indicator. However, considering the degree of pollution and heightened concern, it is time to develop a new and improved framework for the analysis of the sustainable city indicator. This study aims for the development of sustainable city indicator and the examination of practical method for the use of them. Urban sustainable city indicators are based on the "Pressure-State-Response (PSR) framework" which has been adopted by Organization for Economic Cooperation and Development (OECD). The indicators suggested in this study is composed of the following categories: 1. Indicators of natural environment itself, such as land structure (available land use index etc.), bio-species (bio-diversity index etc.), environment resources (water quantity index etc.) 2. Indicators of relationship between man and environment, such as sustainability of using material (recycle of water index etc.), pressure size (pressure index on air etc.), effort of prevention (environmental basic facility index, etc.) 3. Indicators of environmental state, such as landscape and culture (historical & cultural index etc.), environmental pollution (air pollution index etc.) A sustainable city environment is necessary and obtainable, yet its realization seems to be difficult. The urban pollution problems have become more serious than ever before thus requiring much interest. Therefore, this kind of study is meaningful for the establishment of policy objective, and the development and management environmentally sound and sustainable cities.

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Trend analysis of sustainable fashion design in Korean academic journals (국내 학술 연구에 나타난 지속가능 패션 디자인 연구 동향)

  • Soohyun Lee;Younhee Lee
    • Journal of the Korea Fashion and Costume Design Association
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    • v.24 no.4
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    • pp.73-85
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    • 2022
  • The purpose of this study is to conduct more practical subsequent research by identifying research areas through a systematic analysis of sustainable fashion design research trends. For this study, 117 journals domestic journals published between 2010 and 2020 were selected using the keyword, 'sustainable fashion'. With the research materials, six top keywords, 'zero waste', 'sustainability', 'eco-friendly', 'upcycling', 'recycling', and 'ethical', were derived. The research status was examined by year, keyword, keyword and year, and research topic. The analysis results are as follows. First, looking into the studies by year, it was found that research on sustainable fashion increased in general. Compared to 2010, the research tripled in 2020, and it was found to have increased steadily from 2018. Second, regarding the research by keyword, eco-friendly was the most common. It can be seen that research tended to focus on recycling or eco-friendliness before, but in later material design development was heading towards upcycling. Third, concerning the research by topic, case studies were found the most before, but research on design development tended to increase recently. Based on that, it is expected that the areas of sustainable fashion design that need more research will be investigated further.

Study on Aqua with Sustainable Furniture Design (물(Aqua)을 이용한 지속가능한 가구디자인에 대한 연구)

  • Kang, Hyun-Dae
    • Journal of the Korea Furniture Society
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    • v.23 no.1
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    • pp.1-9
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    • 2012
  • Sustainable furniture designs are expressed through reutilization, reuse or redesign of the whole of part of natural materials and existing products. These designs contain natural emotions and show those propensities such as uncertainty, integrity, essentiality and experimental natures. Designs that use natural materials such as wood, bamboo, cork, plants, stones and water have sufficient beauty in themselves and thus these materials are not specially processed but their essence is pursued in those designs. Of those materials, the natural material water is used to pursue the essence of aqua while presenting a new furniture design through an experimental method. The circularity of aqua shares its meaning with the circularity of sustainable designs. In addition, the liquidity of aqua will be grafted onto IT technology to express variable shapes in order to present a new direction of furniture designs.

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