• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.1803-1806
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• 2008

Various efforts of reducing the green house gas in the whole industrial fields including railway industry have been implemented. Tilting train is the key example because it can run more faster on the existing rail than others due to its composite body. The system has an advantage of light weight but also a task to solve, recycling of composite material. To recycle the CFRP(Carbon Fiber Reinforced Plastic), there are two typical methods; chemical and thermal method. In this study, more environmentally friendly recycling method was recommended through the environmental function through comparing both recycling methods.

• 농약과학회지
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• 제20권2호
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• pp.128-132
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• 2016

본 연구에서는 유기농업자재 중 잔류 휘발성 유기용매의 정성 및 정량분석을 위해 Headspace-GC 분석법을 matrix 조성을 달리하여 검출능을 중심으로 시험하였다. Headspace sampler내 흡습제처리 혹은 DMSO molar ratio를 증가시키는 방법을 통해 친수성기를 갖는 유기용매의 분석능이 최대 715% 향상되었으며, 특히 농자재의 보조제로 많이 사용되는 계면활성제의 경우 시료 중 농도가 계면활성제의 종류보다 유기용매 분석능에 미치는 영향이 큰 것을 확인할 수 있었다(68.5-179.1%). 특히 병해충 관리용 유기농업자재의 보조성분 및 함량이 정확히 공개되지 않은 상황에서 유기용매의 함량 정량분석을 위해서는 각각의 분석시료마다 matrix-matched calibration을 통한 정량 분석으로의 접근이 검토되어야 할 것으로 판단된다.

• 한국유기농업학회지
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• 제26권1호
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• pp.1-17
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• 2018

This study analyzes the management performance of environmentally-friendly rice farms using GCM method based on the multifaceted approach. This approach compares the management performance of GCM farms before and after the introduction of GCM, as well as the performance of GCM farms with the performance of conventional farms. It also compares the technical and managerial competence level of surveyed GCM farms with that of conventional farms based on the standard diagnosis table developed by Rural Development Adminstration. Results showed that average income has increased after the introduction of the GCM method and the average income of GCM farms was higher than that of conventional farms, while the level of rice production in farms using GCM method was lower than that of conventional farms. In addition, the technical and managerial competence score of surveyed farms using GCM method was higher than that of conventional farms. These results implies that the higher management performance of GCM farms compared to the conventional farms is attributed to not only the GCM method but also the competence level of farms using GCM method.

• 한국지반환경공학회 논문집
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• 제6권4호
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• pp.65-71
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• 2005

최근 건설현장에서 연약지반처리문제는 자주 대두되는 문제이며, 연약지반을 개량하기 위한 주입공법의 적용성에 있어서 지반개량의 확실성, 주입재의 내구성 및 환경공해문제 등의 문제점이 야기되고 있다. 본 논문에서는 기존의 연속벽체배면을 차수, 보강하는 SCM주입공법의 현장적용성을 검토한 것이다. 2중관 롯드의 중압($10{\sim}100kgf/cm^2$)에 의해 지반을 교란 및 절삭, 분사 혼합하여 알칼리 용출이 적은 친환경적 주입재와 시멘트 페이스트에 의해 구근이 형성됨을 확인하였다. 재령별 일축압축강도 시험과 환경영향성(어독성) 시험을 시행하고, 친환경적 주입재를 사용함으로써 환경공해문제 및 내구성 문제를 보완할 수 있었고, 강도의 조기발현에 의한 지반보강재로서의 성능이 우수함을 확인하였다. 또한 현장시험시공을 통해 구근형성 및 차수벽형성을 확인하고 그 효과가 양호함을 알 수 있었다.

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 2003년도 The Korea-Japan Joint Symposium
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• pp.85-86
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• 2003

Shrink-proofing processing of wool fabrics is practically carried out by means of oxidation of wool with choline and/or covering of wool surface with resins. But, these are not necessarily environmentally friendly process causing a waste fluid containing organic chlorine compounds. Development of alternative method using more environmentally friendly process is desired. In this study, utilization of titanium oxide, TiO$_2$, photocatalytic reaction for the shrink-proofing of wool has been examined. It was found that the treatment of wool by TiO$_2$ photocatalytic reaction gave good shrink-proofing characteristics to wool fabrics.

• 전기학회논문지
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• 제58권2호
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• pp.349-355
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• 2009

As electrical power demand is gradually increasing, the construction of power transmission facility is unavoidable. However difficulties which resulted from increasing of complaints and NYMBY make power transmission tower to be more environmentally friendly. As an alternative proposal, a new method which is changing conventional iron arm for insulation arm which is made of FRP(Fiber Glass Reinforced Plastics) is in progress. In this paper, we discussed environmentally friendly characteristic of domestic 154 kV testing transmission tower whose insulation arms have same mechanical and excellent electrical properties compare to conventional heavy iron arm.

• 한국환경복원기술학회지
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• 제2권1호
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• pp.10-19
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• 1999

In 1991, the ministry of Gov't. Administration and Home Affairs set up a minimum of one sewage disposal plant in each province. By 1995, 264 models of the capillary infiltration method were set up in 331(78%) villages and the contact oxidation method was set up in 52 places. Since the Gov't. sent a letter to each responsible officer across the country stating their disapproval of the capillary infiltration method, the environmentally friendly sewage disposal system has not been diffused. The current model(mechanical sewage disposal) being used, in agricultural and fishing villages, costs too much for maintenance and operation(\50,000 per capita per year). In particular, because of the difference in sewage characteristics of agricultural and fishing villages from urban sewage, the efficiency of the disposal system is very low. Also, because of the growing need for more disposal plants, the Gov't. is looking for cheaper alternatives. This study has analyzed 2 kinds of sewage disposal. The first is used widely in agricultural and fishing villages in Germany. The second is used widely in similar areas of Korea. It has intended to analyze the characteristics, merits and defects of the sewage disposal water plants and pebbles model which is used widely in Germany and developed compatibly for Korea.

• 한국환경생태학회:학술대회논문집
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• 한국환경생태학회 2010년 학술대회 논문집
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• pp.108-111
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• 2010

• 한국환경생태학회:학술대회논문집
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• 한국환경생태학회 2004년도 학술대회지
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• pp.35-38
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• 2004

• 한국의상디자인학회지
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• 제19권2호
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• pp.39-48
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• 2017

Transfer printing is a method to combine printing and dyeing technology by the use of sublimation. It is an environmentally-friendly printing method that saves costs, reduces the production processes by the omission of the washing process, and saves time by maintaining quality. Due to the development of transfer printing, a high value added printing technology is available now but color fastness to sublimation of the printing products is still low since there are few dyes that have an affinity to the fabrics and the application technology is still inadequate. Specially, in case of high concentration black dyes, eco-label type black dyes, which is a substitution for general dispersal dyes, have been developed while general dispersal black dyes are still used, creating issues such as color differences on the surface and back side of the fabrics and contamination by friction after transfer printing. There are also some restricted substances such as allergens. To address these issues, high concentration black dyes and application technology that are environmentally-friendly and that have over 16 K/S through the use of single dyes with excellent color fastness, fixation ability, and similar melting temperature were developed for this study.