• Title/Summary/Keyword: sustainable materials

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Mulching Materials as Yield Booster for Sustainable Mungbean Production

  • Kim Hee-Jung;Lee Ho-Yong
    • Korean Journal of Environmental Biology
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    • v.23 no.4
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    • pp.383-389
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    • 2005
  • The effect of different mulching materials on mungbean production was studied. The general objective was to assess the ecological effects of mulching materials in sustainable mungbean production. Specifically, the study aimed to determine the effects of different mulching materials on the chemical, physical and biological soil properties, on weed control and yield, and to identify mulching materials that are environmentally friendly in mungbean production. The experiment was conducted at the Fruit and Vegetables Seeds Center, Science City of $Mu/tilde{n}oz$, Nueva Ecija, Philippines from May to July 2004. The initial soil chemical properties were: pH of 6.4, 2.0 percent organic matter content, 0.10 percent total nitrogen, 22 ppm phosphorus, and 370 ppm available potassium. The soil microbial loads were $8\times10^4\;CFU\;g^{-1}$ for bacteria and $14\times10^4\;CFU\;g^{-1}$ for fungi. Mushroom spent mulch increased soil organic matter with an average of 3.13 percent, nitrogen with an average of 0.16 percent and the highest number of bacterial count with $3.4\times10^8\;CFU\;g^{-1}$. Use of mulch, except rice straw mulch, generally increased mungbean yield. The best mulching material for high yield production of mungbean was black polyethylene plastic film, although environmentally unfriendly.

A study on sustainable interior design factors and their application in the U.S. (지속가능한 실내디자인 평가요인과 미국 반영도 조사)

  • Kang, Mi-Hyun;Lee, So-Young
    • Korean Institute of Interior Design Journal
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    • v.16 no.5
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    • pp.107-114
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    • 2007
  • Sustainable interior design is defined as interior design in which all systems and materials are designed with an emphasis on integration into a whole for the purpose of minimizing the negative impacts and maximizing the positive impacts on environmental, economic, and social systems over the life cycle of the interior components of a building. To achieve sustainability, it is important to pay attention to the design factors that significantly affect environmental eco-system. The purpose of this study was to describe how interior designers applied sustainable intoner design factors and how important they perceived sustainable interior design factors to be. Internet-based survey of interior design practitioners was conducted to collect data. A random sample was drawn from the American Society of Interior Designers membership list. Findings indicated that although interior designers acknowledge the importance of sustainable design practice, they have not frequently applied it to their projects. The results of this study suggest future educational strategies for students majoring in interior design and continuing education for intoner design professionals.

A Study of The Modern Furniture's Material and Sustainable (현대 가구에서 나타나는 재료의 지속가능성에 대한 연구)

  • Baik, Eun;Suh, Myoung Won
    • Journal of the Korea Furniture Society
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    • v.27 no.2
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    • pp.80-90
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    • 2016
  • The idea of Sustainable, first mentioned in "Our Future (Bruntdland)" from the United Nations report released in 1987 has been highly affect design disciplines in developed countries in 21st century. It relocated industrial society and structure's attentions to nature and recourse conservation and reuse. Designed and manufactured products eventually disposed and it leads to waste of resources as well as creates environmental issues. Unfortunately, vast majority of designers starts designing without anticipation of this matter and produce more believing this leads to more sales. However shorter life of a product will create bigger increase of resource consumption and waste than, importance of re-usage and recycle will eventually increase. In modern furniture industry metal and plastics are frequently used beside wood that material has been diverse than in past. However, there are lack of plans and regulations of re-usage of those material due to difficulties of separating each different materials and collecting due to it's size. This study would like to look into recycling rate, methods and usage of three major materials (wood, metal, plastic) that is typically used in current furniture industries. Furthermore, see the potential of sustainable furniture by analyzing furniture practices made by each different recycled material from old furniture and what designers should consider to achieve feasibility of sustainable furniture.

Case-based reasoning approach to estimating the strength of sustainable concrete

  • Koo, Choongwan;Jin, Ruoyu;Li, Bo;Cha, Seung Hyun;Wanatowski, Dariusz
    • Computers and Concrete
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    • v.20 no.6
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    • pp.645-654
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    • 2017
  • Continuing from previous studies of sustainable concrete containing environmentally friendly materials and existing modeling approach to predicting concrete properties, this study developed an estimation methodology to predicting the strength of sustainable concrete using an advanced case-based reasoning approach. It was conducted in two steps: (i) establishment of a case database and (ii) development of an advanced case-based reasoning model. Through the experimental studies, a total of 144 observations for concrete compressive strength and tensile strength were established to develop the estimation model. As a result, the prediction accuracy of the A-CBR model (i.e., 95.214% for compressive strength and 92.448% for tensile strength) performed superior to other conventional methodologies (e.g., basic case-based reasoning and artificial neural network models). The developed methodology provides an alternative approach in predicting concrete properties and could be further extended to the future research area in durability of sustainable concrete.

A Study on the Absorption Characteristics of Soil Block and Soil Plaster as Eco-Friendly Building Materials (친환경 건축재료로서의 흙벽돌과 흙미장의 흡음 특성에 관한 연구)

  • Hwang, Seong Il;Chu, Mun Ki;Hwang, hey joo;Oh, yang ki
    • KIEAE Journal
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    • v.7 no.3
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    • pp.57-62
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    • 2007
  • Most of current building materials are made of organic compounds or at least made with chemical treatments. Though easy to use and comparatively pay less, those materials are generally not enviornmentally sound. VOC is one of harmful effects. On contrary, natural materials such as soil are usually eco-friendly, and environmentally sustainable as well if not treated in autoclaves. Acoustica materials made of such environmentally sound and sustainable could be widely used. It is aimed to prove that soil based materials could be effectively used in acoustical fields rather than the other usual materials. Experiments with various types of soil blocks and soil plaster were performed. It is proved that the soil plaster has better apsorption features than cement plaster. Soil blocks have higher absorption cofficients than soil plaster, due to the thickness, and the absorption characteristics can be controlled by the design of the blocks.

Thermoelectric Properties of Ni-doped $CoSb_3$ Prepared by Encapsulated Induction Melting and Hot Pressing

  • Kim, Mi-Jung;Park, Kwan-Ho;Jung, Jae-Yong;You, Sin-Wook;Lee, Jung-Il;Ur, Soon-Chul;Kim, Il-Ho
    • Proceedings of the Korean Powder Metallurgy Institute Conference
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    • 2006.09a
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    • pp.688-689
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    • 2006
  • Ni-doped $CoSb_3$ was prepared by the encapsulated induction melting and hot pressing, and its doping effects on the thermoelectric properties were investigated. Single phase $\delta-CoSb_3$ was successfully obtained by the subsequent heat treatment at 773K for 24 hours. Nickel atoms acted as electron donors by substituting cobalt atoms. Thermoelectric properties were remarkably improved by the appropriate doping.

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A Study on Energy Eco-Audit Evaluation Scheme at Schools for Sustainable Energy Management (지속가능한 에너지 관리를 위한 학교 에너지 생태 감사 평가 방안 개발 연구)

  • Nam, Young-Sook
    • Hwankyungkyoyuk
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    • v.20 no.4
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    • pp.1-11
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    • 2007
  • The purpose of this study is to develope energy eco-audit evaluation scheme for the sustainable energy management at schools in accordance with education for sustainable development. Energy eco-audit evaluation scheme was developed through critical review of preexisting evaluation methods, consensus searching for the process from field. The results of this study are as follows. The school energy eco-audit evaluation scheme has three criteria: data collection, energy program, and environmental review. First, criteria of data collection includes general affairs, school building construction, and energy use. Second, criteria of energy program stresses school administration system such as the democratic decision-making process and structures. Third, criteria of environmental review includes reporting process and preparing teaching/learning materials for sustainable energy management. In conclusion, school energy eco-audit evaluation scheme could find a new way to achieve extended effect for sustainable energy management in school. It also could continue to seek opportunities to raise their awareness of energy issue and environment. School committee and whole school are involved to continue to implement present action plan and prepare updated plan in order to reduce environmental impact in school. By doing so, it would be possible to play important role in both school administration and education for sustainable development.

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A Study on the Inner Window & Floor Materials of Educational Facilities According to the Environmental Variation of Future Education (미래교육 환경변화에 따른 학교시설의 실내 바닥재 및 창호재에 관한 연구)

  • Yoo, Tack-Dong;Cho, Jin-Il;Lee, Ho-Chin
    • The Journal of Sustainable Design and Educational Environment Research
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    • v.3 no.1
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    • pp.46-59
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    • 2003
  • In this study, analyzing class method, curriculum and demand performance of materials and user according to the 7th educational curriculum which, it is surveyed that materials design performance standards of floor and window suitable to future educational environment. Based on this study, It is needed for development of special materials suitable educational facilities, making standards fitting demand, study of variable and special field for educational facilities, study for security of objective data of materials, study of performance evaluation method subdivided, and desirable positive use of intimate environmental materials.

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A Case Study on Sustainable Eco-Friendly Cosmetic Packages in Domestic and Foreign (국내외 지속 가능한 친환경 화장품 패키지 사례 연구)

  • Lee, Ji-Min;Kim, Seung-In
    • Journal of Digital Convergence
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    • v.18 no.9
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    • pp.343-349
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    • 2020
  • This study is cases study of sustainable eco-friendly cosmetics packages. The importance of eco-friendly packages has been increasing as environmental issues have recently emerged around the world. Domestic cosmetics industry are releasing sustainable package designs with these changes, but they are limited. In this study, sustainable package criteria were divided and analyzed based on each of the five prior studies of domestic and foreign cases. Studies have confirmed that there is no diversity in the materials and designs of sustainable packages in Korea compared with other countries. Also, it could be seen that there was the lack of consumer-led eco-friendly campaigns. Starting point of research, it is expected that this study may help continue to study better sustainable cosmetics packages in the future.

Developing Design Education Program concerning Sustainable Fashion (지속가능 패션 실용화를 위한 디자인 교육 프로그램 개발)

  • Lee, Youngsun;Choy, Hyonsook
    • Journal of the Korean Society of Costume
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    • v.64 no.2
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    • pp.50-69
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    • 2014
  • Sustainability has been a big issue over the whole global industry lately and is an important fashion trend that reflects the modern phase of the time. The concept of sustainable fashion includes physical fashion products made from eco-friendly or recycle materials as well as ethical value such as corporate social responsibility for environment, labor or working condition. Fashion companies of advanced countries who are aware of the geo-environmental and ethical issues found that generating profits by setting trends and pursuing external beauty can no longer be the ultimate goal of fashion companies, and started to recognize the importance of sustainable fashion as a future-oriented trend. Not only fashion industry but also governments of advanced countries have been playing a leading role to educate the people regarding the importance of sustainable fashion and making large investments to foster industry specialists in educational institution. The aim of this study is to propose sustainable fashion design education program that fits the domestic university curriculum and government-leading education program in order to set the foundation for sustainable fashion industry. Thus, this study investigates successful cases of foreign government-led sustainable fashion education that can be introduced to improve domestic sustainable fashion education. The empirical study of the research is developing 12-15 week university level education program to foster specialists in sustainable fashion. The survey carried out by the students who participated in the program shows the change of perception on sustainable fashion. Developed university level program can be spread to municipal corporation, school of continuing education, and etc. in order to derive participation and problem perception of the citizens on sustainability. Developing systemized sustainable fashion design education program would be the first step of sustainable fashion by educating students who will take the leading role in the future fashion industry. Moreover, it can strongly influence future customer education as well as a special education inducing interest on sustainability in everyday life. A follow-up study is expected to serve as a foundation for sustainable fashion to take root successfully in the fashion industry.