• 한국환경복원기술학회지
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• 제2권3호
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• pp.54-63
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• 1999

Quantifications of fish farm influences on stream water quality may provide basic informations on watershed management to reduce environmental impact due to fish farm development and to conserve stream water quality in forested watershed area. In this research stream water qualities around (Mt.) Paekun area were monitored by seasons and the following results were obtained. Due to the increase of pH in effluent water from the fish farm it was believed that alkalization of stream water can be accelerated by large scale development of fish farms in the forested watershed area. Negative effects on stream water quality was also observed by indications of increase in electrical conductivity and temperature of effluent water from the fish farm. Decreases of physicochemical indexes such as the amount of dissolved oxygen, percentage of dissolved oxygen and total amount of ion in effluent water from the fish farm were also negative aspects in downstream ecology. It is recommended that water purification system as well as eco-friendly fish farm design be incorporated to large scale fish farm development plan in forested watershed area.

• 한국수자원학회논문집
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• 제47권7호
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• pp.657-670
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• 2014

수질개선과 하천개수를 통한 자연형하천 조성으로 주민들의 친수공간으로 이용되고 있는 울산시의 5개 도시하천에 대해 식생을 조사하였다. 하천의 기하학적 특성이나 수질 및 제내지 및 제외지 등 주변여건과 식생의 활성화 등과의 상관관계를 조사하였다. 각 하천의 자연형하천 조성시기가 다르고 일천한 관계로 뚜렷한 정량적 상관관계를 얻을 수는 없었으나, 식생의 활성화 정도가 현하천의 수질과 제내지 및 제외지 등 주변 여건에 의한 차이점은 어느 정도 확인할 수 있었다. 자연상태에 가까운 척과천은 식생종류가 다양하였고, 수질과 주변 여건이 좋은 무거천과 명정천은 인위적 유지용수 공급과 개수공사에 의한 인공물이 많지만 식생의 활성화 정도가 좋았다. 반면에 수질이 나쁘거나 하폭과 둔치가 좁은 데도 무리하게 산책로 등을 조성하였던 여천천과 약사천은 식생의 종류가 다양하지 못하였고 활성화도 낮은 것으로 나타났다.

• 전기학회논문지
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• 제66권3호
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• pp.551-556
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• 2017

The cross-linked polyethylene(XLPE) has been most widely used for the power cable insulating layer because of its outstanding properties such as electrical and mechanical properties. However, XLPE is unrecyclable when disposed after replacement and demolishing because it becomes thermosetting through cross-linked process. Recently, because of growing social awareness of recycling and eco-friendly, there is growing need for the development of recyclable insulating materials that can replace XLPE. Therefore, the purpose of this study is to compare the electrical properties of XLPE and recyclable thermoplastic insulating materials. To this end, we compared and analyzed the electrical properties of XLPE and group N2 through AC breakdown test, accelerated water treeing test and accelerated life test(ALT).

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2005년도 추계학술대회논문집
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• pp.682-685
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• 2005

In this research, how the evaluation of the spacial image influenced by the environmental friendly elements included in the visual information, and how the selection of the sound changed depending on the characteristics of spatial image by the 40 subjects were carried out. Vast tracts of green land and the waterfront were highly preferred and impressive than the other spaces. The green music, signal with water sound and bird chirping sound were highly scored. In the frequency characteristics of the factors, the first factor was artificial sound(high at the low frequency band), the second was natural sound(uniform at all frequency band) and the third was water sound(high at the middle and high frequency band over 500Hz). This shows that the proposal of the sound which has the frequency characteristics fit to the spacial image should be selected for the soundscape of the target space.

• 농업과학연구
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• 제50권4호
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• pp.697-711
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• 2023

The global waste crisis has been escalating and its consequent impact on soil, water, air pollution, and eventually climate change acceleration has shed light on the importance of reducing waste. Amidst COVID-19 and the following surge in single-use plastics for food delivery, waste generation is on the incline. Companies and governments have embarked on developing various eco-friendly packaging technologies, but their effectiveness on the consumers is vague as definitions of eco-friendly packaging are vague, and research on its link to purchase intention remains scarce. Thus, the adoption of eco-friendly packaging has been slow. To address this issue, this study analyzes the awareness and purchase intention of four visual attributes of eco-friendly packaging-material, verbal statement, eco-label, and color-along with the environmental consciousness among undergraduate university students in Korea through online surveys and the ordered logit regression model. The study distinguished the attributes into evidence-based and conjectural categories. The findings revealed that eco-friendly visual attributes had a positive effect on purchase intention amongst undergraduate students in Korea; however the level of environmental consciousness had marginal effect on the purchase intention of eco-friendly visual attributes. The level of effectiveness also varied with each visual element. Analyses revealed that visual attributes to eco-friendly material had marginal effect on purchase intention; color was deemed not an "Eco-friendly attribute" by most students, and although eco-friendly labels were deemed as an eco-friendly attribute, trust in the labels varied according to environmental consciousness. These findings have implications for businesses and policymakers aiming to promote eco-friendly consumption within packaged food products.

• KIEAE Journal
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• 제2권4호
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• pp.11-20
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• 2002

The purpose of this study is to suggest environment-friendly assessment elements for the apartment unit plan. For this, the organizing environments of a unit are classified through literature review. Those were five categories of environment: environment of solar system, light, water, green and indoor air Quality. Then, the assessment elements for each categorized environment to evaluate the environment-friendly performance were grasped definitely by examining the applicability of architectural methods or equipment technology. It is expected to suggest not only an assessment tool for evaluation but also a checklist for design in order to develope environment-friendly apartment unit plans.

• 한국환경과학회지
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• 제12권9호
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• pp.897-903
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• 2003

This study focuses on importance level analysis of environmentally-friendly planning factors using Analytic Hierarchy Process(AMP). This study verify different planning principle makes comparison matrix by a relative comparison value, verified consistency after yield weight to analyze more objective importance for apartment complex estate environmentally-friendly planning factor. In order to decide importance of apartment complex estate environmentally-friendly planning factors multiplying weight of verified planning principle with weight of planning factors. The results are as follows; First, importance of preservation of green tract of lands, Preparation of Biotop, Tree planting of sites, Propriety of development density high except Circulation and practical use of water. Next, valued planning factors constituent appeared to Energy efficient building plan, Rubbish recycling, thermal utilization of solar energy, Artificial tree planting of buildings etc. importantly. Finally, plan constituent that importance is underrated most appeared by Practical use of building materials and equipment, Centralization of energy and resources, Preservation of corridor etc.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2019년도 추계 학술논문 발표대회
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• pp.106-107
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• 2019

Recently, maintenance of old facilities has emerged as a major issue. In particular, the demand for road cutting and excavation is increasing due to the aging of underground facilities such as water supply, sewage and city gas. In addition, the development of eco-friendly equipment is required due to the environmental problems of noise and dust. Therefore, this study intends to analyze the performance in terms of productivity of the eco-friendly road cutter developed as part of the development of eco-friendly equipment, and to derive improvements.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2019년도 추계 학술논문 발표대회
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• pp.124-125
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• 2019

The use of road cutters in the maintenance of obsolete underground facilities maintains polluting dust, cutting sludge, etc, polluting the air environment, soil, and water, causing civil complaints caused by noise, and consequently interrupting work. Therefore, it is time for eco-friendly pavement cutting technology for fugitive dust and cutting sludge emission management and noise management. This study was based on research by the development of eco-friendly pavement cutting technology in urban areas. In this study, the current state of existing road cutters is investigated and the patented technology analysis of road cutters is conducted to derive the design elements of eco-friendly pavement cutting technology.

• KIEAE Journal
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• 제8권6호
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• pp.79-87
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• 2008

The purpose of this study is to identify the planning features of apartments that are people-friendly, nature-friendly and ones that improve the quality of the apartments through sustainable design characteristics found in the apartment community space. This study found the sustainable design characteristics through the case of 8 environment-friendly apartment in the Seoul-Gyeunggi area. Sustainable design was categorized into three areas a) social sustainability b) economic sustainability c) ecological sustainability. The major findings are summarized as follows: First, socially sustainable design which included plans for various types of squares, spaces for pedestrians showed high application of universal design plans. While, plans to maximize open spaces that facilitate the social exchanges among residents showed low application. Second, economically sustainable design showed high application in terms of access to public transportation and bicycle storage facilities. However, planning factors such as alternative energy facilities, recyclable materials, reuse of rainwaterand heavy water showed low application. Third, environmentally sustainable design included high application of promenades, artificially created green space and various types of water space. On the other hand, nature study centers, biotope and environment friendly parking space showed low application.