• 한국정밀공학회지
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• 제20권4호
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• pp.128-135
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• 2003

To decrease environmental damage, the development of environmental friendly fluids provides attractive alternative to the conventional fluids. In this study, the effects of harmful ingredients (Cl, S) contained in the fluids that used in grinding and cutting processes to influence on the nasal cavities of the white rats were measured indirectly. Also, the level of the environmental influence in workshops was graded through analyzing the concentration and chemical ingredients of flying-dust, which generated from the friction and combustion in the cutting process, that for analyzing how harmful the influence of particles to workers then it could be used as the basic data for improving the environment. To improve the conventional machining fluid, which can be harmful on worker's bodies and the environment, the environmental friendly machining method was suggested through analyzing each lubrication properties of vegetable fluid and used-edible oil as alternative fluid. As a result, it was known that an emulsion type fluid might be the main cause leading to some respiratory ailments. Also this paper presents the possibility to use vegetable fluid and used-edible oil as the alternative of cutting fluids.

• 한국습지학회지
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• 제25권4호
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• pp.366-378
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• 2023

본 연구는 자연 친화적 공공공간의 확보가 아동의 건강한 성장에 미치는 영향을 분석하고 독일의 사례를 고찰하여 한국에의 시사점을 도출하고자 하였다. 자연은 아동의 놀이와 신체활동을 증가시켜 인지능력과 행복도를 향상하는데 도움이 된다. 전반적으로 학업 스트레스 지수가 높고 행복도가 낮은 국내 아동을 위하여 반드시 제공해야 할 공간으로 판단된다. 그러나 독일의 '자연체험공간 사업' 사례가 보여주듯 아동을 위한 자연 친화 공간을 조성하기 위해서는 국가적 차원의 법적 지원이 필요하다. 또한 해당 사업이 주요 국가정책과 연계되어야 한다. 더 나아가 학제간 협업뿐 아니라 보호자가 자연환경에 대하여 긍정적으로 인식할 필요가 있다.

• 아시안잔디학회지
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• 제12권1호
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• pp.49-78
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• 1998

Nowadays, there are increasing demands of golf courses and it is necessary to make more golf courses than the present. To do this, we need to improve the environmental problems with the regional inhabitants, and it is said that the first thing to be considered in developing any golf course in Korea is to preserve the environment. In this context, the purpose of this study is to set forth several design factors to lessen the negative impacts which are accompanied with the development of golf courses. 1. The present conditions of golf courses in Korea Many new golf courses have come into being, particularly since the late 1980s, and now, in the year of 1997, over one hundred of golf courses are doing their business, yet the number of golf course is still less than required. So far, over a half of them have been made in the vicinity of Seoul on account of various reasons, and this has adversely affected on our natural environment. This unreasonable development of golf courses has caused serious water pollution, landslides and the other problems. Also, the topography of Korea is not good for golf courses. Although the demands of golf courses are increasing, the suitable sites for them are very limited, and therefore it is sometimes unavoidable to make golf courses on steep hills. Consequently, in designing golf courses in Korea, the most important thing is the balance between natural environment and artificial environment. 2.Eco-friendly golf course design factors 1) The concept of eco-friendly golf courses Ecologically sustainable and sound golf courses which are made by eco-friendly approaches 2)Basic conditions of eco-friendly golf courses (1)The most suitable sites (2) Conservation of existing ground as much as possible (3)Proper use of agricultural chemicals which have great impacts on the environment (4) Reasonable use of fertilizers (5) Developing a specialized fertilizer only for grass (6) Adaptation of organic agriculture (7) Improvement of grass sorts (8) Establishing reservoirs for purifying the water from golf courses 3) Eco-friendly golf courses (1) Location-Enough area /Gentle slope/Winding ground/Including lakes or streams /Not crossing wind's main direction Facing south or southeast /Suitable soIl for grass /Good drainage /Low level of underground water (2)Course layout and design -Consideration about existing contours as much as possible -Adaptation of Scotish design trend -Various holes' configuration -Consideration toward surrounding landscapes -Reducing grass areas -Giving buffer zones -Adapting computer methods in the process of site analysis and design (3) Eco-friendly considerations in constructing and managing golf courses -Protection of wildlife -Reuse of existing forests and preservation of topsoil -Renovation of old-fashioned courses -Reducing grass areas -Purification of water -Standization of management -Strict regulations against chemicals -Recycling organic materials -Through separation of the water inside golf courses and out of bounds -Getting proper construction works done in a due time 4.Eco-friendly considerations from a viewpoint of cultural environment 1) Well-matched landscape design and events planning 2) Implement of identifications and awarding systerns 3)Acknowledgement of superintendents' qualitications in the maintenance of golf courses 4)Increasing public golf courses and keeping good relationships with the neighbors near golf courses Key words: Pro-environmental development, Golf course.

• KIEAE Journal
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• 제10권4호
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• pp.39-44
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• 2010

Reading room in the university is one of necessary facilities that university student must use. It is, therefore, very important to make reading room comfortable acoustically not only to minimize the annoyance to the users but also to provide efficiency in studying. Present study aims to investigate the current situation of reading room in terms of acoustics and moreover to find out the relationship between the indoor noise and users' satisfaction through questionnaire survey. As a result, the indoor noise level is quite higher than the 1st grade, 35 dB(A), that the Ministry of land, transport and maritime affairs suggests as certificate regulation for environment friendly building and there were lots of noise sources that can provoke users in studying or concentrating. Questionnaire survey illustrates that the sound when opening and closing door, and airborne sound from outdoor transmitted through window are most annoying, which affected users' dissatisfaction.

• 한국도로학회논문집
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• 제14권4호
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• pp.37-49
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• 2012

PURPOSES : This study is to investigate the fundamental properties of limestone added cement concrete for application of pavement. METHODS : As the production of Portland cement causes environmental problems, engineers have sought more environment-friendly concrete construction materials. Limestone powder can be used for concrete as a partial replacement of Portland cement. One of the great applications of limestone powder added cement concrete might be a cement concrete pavement since the concrete pavement consumes massive quantity of Portland cement. Experimental variables were different replacement level of limestone powder by 0% to 25% with 5% increment. Before hardening of fresh concrete, setting time and plastic shrinkage characteristics were investigated in addition to other basic properties. Properties of hardened concrete included compressive, tensile and flexural strength as well as drying shrinkage. RESULTS : The addition of limestone powder did not significantly affect the properties of fresh concrete. Strength deceased as the replacement ratio increased and when the replacement ratio was greater than 10% decrease rate increased. CONCLUSIONS : It was found that the partial replacement of the limestone powder to cement in pavement materials can be positively considered as its mechanical properties show comparable performance to those normal concrete.

• 한국유기농업학회지
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• 제16권1호
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• pp.21-42
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• 2008

This study was conducted to suggest some alternatives to facilitate consumers' purchase of EAP (Environment-friendly Agricultural Products) by comparing purchasers and nonpurchasers in terms of their socio-economic characteristics, EAP purchasing behaviors and perceptions, and overall evaluation on EAP. Data were collected by 562 Gwangju citizens selected through snowball and convenient sampling procedures in 2007. Purchasers were more likely to be female, older, and in a higher income level than nonpurchasers. Purchasers, who were more knowledgeable about EAP, had a higher tendency to obtain EAP information through more diverse sources, and more relied on EAP certification mark to distinguish EAP. Purchasers were also more concerned about the safety from pesticides and had more confidence in the safety of EAP than nonpurchasers. Purchasers were more likely to perceive the importance of 'facilitation of EAP' and 'providing education and information about EAP' than nonpurchasers. Generally purchasers tended to be more satisfied with EAP and higher intention to increase their EAP purchase in the future. Implications of the results were discussed.

• 한국유기농업학회지
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• 제11권4호
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• pp.15-37
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• 2003

Recently, production-consumption quantity and market size of environment-friendly agricultural products(EFAP) have been increased. Consumers have demanded food safety and nutrition of EFAP, but in the near future they will need many kinds of item, relatively low price and high quality. So producers have to make an effort for down-cost, increasing items and developing technical know-how, which can be attained by producer/region organization. Correlation coefficient between the recognition degree for certification system and purchasing amounts at a time is higher than other ones. Therefore public information works using the TV and newspaper must be promoted all the more about certification system. And if the consumer’s satisfaction level of EFAP purchased gets higher, the quantity demanded will be increased more. And consumer’s trust on EFAP is derived from certification system or close relation between producers and consumers. Thus the most important thing of marketing strategies for EFAP is continuously to focus on explanation and information works on certification system by region in metropolitan area. Also, it necessary to introduce green marketing principles and apply to strategies item type. Namely those need to establish target market segmentation And marketing strategy stages according to the green degrees of market And commodity.

• 한국유기농업학회지
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• 제26권4호
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• pp.543-558
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• 2018

The purpose of this study is to analyze the amount of willingness to pay for environment-friendly agricultural processed foods by the level of consumption intention. To accomplish the objective of the study a consumer survey was conducted for quantitative analysis regarding consumption pattern. The ordered-probit selection model, Heckman-type two-stage method was employed for an empirical analysis on determining the amount of willingness to pay. The estimation results showed that in the case of consumers who are to keep their consumption at the present level, those with high quality contentment compared to price, brand contentment, and purchasing chiefly in the special store, have the higher amount of willingness. The estimation results also showed that in the case of consumers who are to increase their consumption, those with high quality contentment compared to price, brand contentment, certificate contentment, and having family members who suffer from diseases such as atopy, cancer, diabetes, high blood pressure, have the higher amount of willingness. Therefore For those who are to increase their consumption, enhancement of quality, enhancement of contentment with certificate, promotion are useful to increase the amount of willingness to pay.

• 한국유기농업학회지
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• 제26권4호
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• pp.609-618
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• 2018

The objective of this study is to analyze the factors increased use of environmentalfriendly agricultural product in school food service. For this, I surveyed the perceptions on environmental-friendly agricultural product and willingness-to-pay for increasing use to 500 parents of elementary, middle and high school. As a result, the perception of environment and safety is the highest, but health and consumption is the lowest. The average of willingness-to-pay is about 12,136 Won per month. But 14.2 percent of the total respondents said that they did not have a willingness-to-pay, and 62.6 percent said that they would pay an additional 10,000 won or less. The factors affecting the willingness-to-pay were gender, income, health and consumption factors. Despite the low level of parents' perception of the health and consumption factors for environmental-friendly agricultural products, health and consumption factors affect statistically significant on the willingness-to-pay compared to others. Most of the promotion and education of environmental-friendly agricultural products has focused on safety, but this study suggests that education on the health and correct consumption of environmental-friendly agricultural products is important.

• 디지털융복합연구
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• 제15권2호
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• pp.485-491
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• 2017

아동친화도시는 아동이 행복하게 살 수 있도록 지역사회 환경을 조성하는 것으로 아동권리가 보장된 환경이 조성될 때에 가능하다. 이에 본 연구는 아동권리와 행복감의 관계에 대해서 검증하여 아동이 살기 좋은 아동친화도시구축을 위해 지원해야할 사항이 무엇인지 탐색하였다. 이를 위해 아동친화도시 인증을 받은 W지역의 초등학생과 중학생 1000명을 대상으로 설문조사하여 이를 분석하였다. 분석결과 첫째, 초등학생이 중학생보다 아동권리인식이 높은 것으로 조사되었다. 둘째로, 행복감에 영향을 미치는 아동권리는 건강과 사회서비스, 교육환경으로 나타났다. 셋째로, 행복감에 영향을 미치는 아동권리는 학교급에 따라 다르게 나타났는데, 초등학생의 경우는 가정환경, 안전과 보호, 교육환경이 중요하게 부각되며, 중학생은 건강과 사회서비스, 안전과 보호가 중요한 것으로 나타났다. 이러한 연구결과를 토대로 아동친화도시 구축을 위해 보건, 복지, 교육, 안전 등의 다양한 측면을 고려한 융복합적 개입과 접근이 필요함을 제언하였다.