• Advances in concrete construction
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• 제10권4호
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• pp.311-317
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• 2020

Performance of Sustainable materials continues through using of recycled waste construction materials to minimize the utilization of the natural resources. The cement industry is a major source of CO₂ in the atmosphere which is the main cause of global warming. Replacement of OPC with other sustainable cementitious materials has been the most interesting area of researches. This investigation focuses on the properties of alkali-activated mortar with the different replacement ratios of ceramic tile powder (CTP) by fine soil powder (FSP) (0 to 100)% and different molarities of sodium hydroxide concentrations. The experimental program was conducted by examining the compressive strength, water absorption, and water sorptivity. The results showed that the compressive strength of the specimens at age of (28, 56, and 90 days) increases with an increase in the amount of fine soil powder content and decreases at the age of 120 days. Also, minimum water absorption at the age of 90 days was found in the mixes containing 100% fine soil powder. However, fine soil powder replacement had a negative effect on the sorptivity and water absorption values at the age of 120 days. On the other hand, the 12M sodium hydroxide concentration was considered the optimum concentration compared to other concentrations.

• 한국농촌건축학회논문집
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• 제9권2호
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• pp.1-12
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• 2007

TV-Drama Location sets as a potential magnet for tourism have been a popular subject during the past years. A large number of provincial governments have been trying to attract location sets to their region for this cause. But so far the drama sets, once they lost the heat of the initial exposure, have not been used continuously and thus result in waste of province budget. Systematic approach to the utilization and effective application is needed. On the basis of analyzing the issues and problems of existing TV drama sets, this study explores possibilities of development in the case of "Into the storm" drama set, locationed at Jukbyun, Uljin-gun. Through SWOT analysis, feasibility analysis, the study proposes sustainable scheme that accommodates potential for future drama, tourist attraction and functions for local residents.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2019년도 학술발표회
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• pp.161-161
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• 2019

Water security issues, stimulated by increasing population and changing climate, are growing and pausing major challenges for water resources managers around the world. Proper utilization, management and distribution of all available water resources is key to sustainable development for achieving water security To alleviate the water shortage, most of the current research on multi-sources combined water supplies depends on an overall generalization of regional water supply systems, which are seldom broken down into the detail required to address specific research objectives. This paper proposes the concept of optimization framework on multi water sources selection. A multi-objective water allocation model with four objective functions is introduced in this paper. Harmony search algorithm is employed to solve the applied model. The objective functions addresses the economic, environmental, and social factors that must be considered for achieving a sustainable water allocation to solve the issue of water security.

• 패션비즈니스
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• 제27권5호
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• pp.108-120
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• 2023

Recently, interest in eco-friendliness and sustainability has been increasing due to the rapid progress of fast fashion and the crisis of sudden environmental changes after COVID-19. This study aims to develop upcycling textiles and express product design using digital 3D to realize a sustainable fashion industry and present environmental aspects, diversity, creativity, and new directions in fashion industry design. The research method is to develop and pattern upcycling textile designs by applying weaving techniques with waste materials. It uses the developed upcycling textile design in digital 3D to incorporate it into clothing fashion and shows the utility and practicality of upcycling textile design. As a result of the study, the appearance is realistic when outputting DTP of upcycling textile design. It endures without loosening or tearing, making it a durable and creatively expressive fashion item. Texpro 3D mapping reduces the time and cost of making actual sample fabric. Upcycling textile design and 3D CLO virtual clothing are combined to produce actual clothing samples, resulting in zero waste reduction due to cutting and sewing. This study anticipates actively and continuously advancing the development of upcycling textile design and digital 3D in terms of ethics and the environment.

• 한국지하수토양환경학회지:지하수토양환경
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• 제18권1호
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• pp.1-5
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• 2013

Global climate changes affect the local hydrologic cycle, and subsequently, require changes in water resource management strategies of Korea. Variations in precipitation and urbanization have adverse effects on the reasonable and efficient utilization of groundwater resources. Groundwater management strategies of Korea have been implemented based on the evaluation of "sustainable yield", which is calculated from the amount of annual recharge. However, this sustainable yield has no consideration of natural discharge and dynamic equilibrium of the groundwater system. Therefore, for the effective groundwater management strategies of the following decades, we need representative and reliable observations, and have to develop methods for the systematic analysis and interpretations of the data to draw valid information in linkage of natural and societal environmental changes.

• Advances in concrete construction
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• 제6권3호
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• pp.221-243
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• 2018

Utilization of mine waste rocks and tailings in concrete as aggregates will help in sustainable and greener development. The literature shows the potential use of iron ore tailings as a replacement of natural fine aggregates. As natural sand reserves are depleting day by day, there is a need for substitution for sand in concrete. A comprehensive overview of the published literature on the use of iron ore waste and tailings and other industrial waste in concrete is being presented. The effect of various properties such as workability, compressive strength, split tensile strength, flexural strength, durability and microstructure of concrete have been presented in this paper.

• 센서학회지
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• 제24권5호
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• pp.299-305
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• 2015

Since the natural disasters such as floods, droughts, heat wave and cold wave are increasing, the need for risk management is necessary to minimize the damage with utilizing IT technology. Also, the monitoring services of disaster response type have been developed and applied. Recently, the open source hardware based on the signal of the sensor, or the monitoring studies have been carried. In this paper, by analyzing a low-cost open source hardware platform such as Beagle board, we examine the utilization of the hardware-based module for sensor monitoring.

• 패션비즈니스
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• 제28권1호
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• pp.1-19
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• 2024

This study explores application of upcycling design methods in structural transformation of second-hand denim clothing, aiming to achieve sustainable design objectives. By drawing inspiration from Liu Qing's research methods in the field of circular utilization of denim clothing, this study collected and analyzed cases of structural transformation of used denim clothing from 2020 to 2023. It summarized structural transformation design methods for used denim clothing. Through the development of design works, this study aims to find out the best upgrading and renovation design strategy by applying the method of structural renovation design. This study aims to support the development of a sustainable fashion industry and promote recycling and upcycling of discarded clothing fabrics, thereby reducing resource waste and environmental impact.

• 생명과학회지
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• 제12권4호
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• pp.433-441
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• 2002

본 연구는 소비자의 친환경 농산물에 대한 반응과 친환경 농산물 구입의향에 미치는 영향요인을 체계적으로 규명하기 위해 경험적 통계학적 분석을 시도함으로써 소비 확대와 친환경 농업정책 수립을 위한 시사점을 발견하는데 목적을 두었다. 소비자들의 친환경 농산물에 대한 인식의 정도와 주요 구입처, 친환경 농산물의 단점, 친환경 농산물을 구입하지 않는 이유 등 구입 실태에 대한 것은 설문조사를 통하여 살펴보았고 이를 토대로 친환경 농산물 구입의향에 영향을 미치는 요인들을 살펴보기 위하여 가설을 설정하고 그 가설을 검증하기 위해서 ANOVA분석, 상관분석으로 변수들의 관계를 살펴보았으며, 다중회귀분석을 통하여 가설을 검증하였다. 친환경 농산물에 대한 소비자 성향 분석 결과 친환경 농산물에 대한 구입이 있는 소비자는 전체 응답자의 88.2%였으며, 채소류를 가장 많이 소비하는 것으로 나타났다. 구매이유는 건강이나 질병치료를 위해서가 많았으며, 대부분 소비자들이 친환경 농산물의 가격이 높아 구입이 어렵다는 의견도 많았다. 그리고 일반농산물과의 선호도에서는 85.8%가 친환경 농산물에 대해 긍정적으로 생각하고 있었으며, 장래에도 가격이 저렴하고, 재배 유통과정이 확실하면 계속 구입하겠다는 의견이 89.3%로 나타났다. 따라서 친환경 농산물에 대한 소비자 의향에서 나타난 친환경 농산물의 소비 저해 요인을 최소화하고 소비를 확대시키기 위해서는 재배 및 유통 과정을 투명하게 소비자에게 알려 소비자가 신뢰할 수 있도록 철저한 품질인증 관리와 함께 관행재배 농산물이 유사 판매되지 않도록 하며, 잔류 농약으로부터 안전한 건강식품이라는 것을 소비자에게 인식시키는 일이 무엇보다 중요할 것으로 생각된다. 그리고 친환경 농산물 판로를 다양하게 하고, 고소득층이 사는 지역을 대상으로 일반 생필품과 함께 친환경 농산물을 구입할 수 있는 장소를 확대하는 한편, 생산 및 유통 판매 과정에서 발생되는 비용이 절감시켜 지나치게 높은 가격으로 판매되지 않도록 하여 친환경 농산물이 일반 농산물보다 더 비싸게 받아야 하는 이유를 소비자가 납득할 수 있도록 근거를 제시하는 등 소비 확대 노력이 전개되어야 할 것으로 생각된다.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2019년도 학술발표회
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• pp.408-408
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• 2019

The persistence of drought periods and water scarcity is a growing public concern, as climate change projections indicate a more critical scenario in the future. The sustainability of water resources for the increasing population, and to ensuring crop production will unarguably be a daunting task for the water resources managers, with a projected 9.8 billion people by 2050 as well as the need to increase food production by 70 to 100%. Consequently, there is a need for significant irrigation water use for more crop production in the face of stiff competition among water users. However, the available natural resources are already over-constrained, and the allocation of more resources for food production is not feasible. Currently, about two-thirds of global water withdrawer is used by the agricultural sector while 48% of water resources in Korea is used for agricultural production. Despite the apparent ecological deficit and unfavorable conditions of resources utilization, a staggering amount of food waste occurs in the country. Moreover, wastage of food translates to waste of all the resources involved in the food production including water resources. Food waste can also be considered a serious potential for economic and environmental problems. Hence, exploring an alternative approach to efficient resources utilization in a more sustainable way can ensure considerable resources conservation. We hypothesized that reducing food waste will decline the demand for food production and consequently reduce the pressure on water resources. We investigated the food wastage across the food supply chain using the top-down datasets based on the FAO mass balance model. Furthermore, the water footprint of the estimated food wastage was assessed using the representative of selected food crops. The study revealed that the average annual food wastage across the food supply chain is 9.05 million tonnes, signifying 0.51 kg/capita/day and 48% of domestic food production. Similarly, an average of $6.29Gm^3$ per annum of water resources was lost to food wastage, which translates to 40% of the total allotted water resources for agriculture in the country. These considerable resources could have been conserved or efficiently used for other purposes. This study demonstrated that zero food waste generation would significantly reduce the impact on freshwater resources and ensure its conservation. There is a need for further investigation on the food waste study using the bottom-up approach, specifically at the consumer food waste, since the top-down approach is based on estimations and many assumptions were made.