• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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• pp.1149-1151
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• 2007

As a follow-up to our previous work we present in this paper some experimental results on LED light recycling. Specifically we demonstrate for the first time that screen brightness can be increased using our light pipe based light recycling scheme for reallife projection display applications.

• 펄프종이기술
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• 제31권2호
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• pp.34-41
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• 1999

Adsorption of cationic polyacrylamide dry strength resins onto the surface of papermaking fibers and fines is critical for their effective utilization. Since dry strength resins are frequently employed when recycled fibers containing a great deal of fines are used as a raw material, their adsorption characteristic onto the recycled fiber fines is of great importance. In this study, effects of recycling on adsorption characteristics of cationic polyacrylamide onto primary and secondary fines were examined. Never dried bleached hardwood kraft pulp was beaten and dried for recycling. In each recycling step the adsorption characteristic of a cationic PAM onto primary and secondary fines was evaluated by kjeldahl nitrogen analysis method. The influence of recycling on water retention value and carboxyl content along with the sheet density and tensile strength was examined. Secondary fines of never dried pulp adsorbed twice as much of C-PAM as the primary fines, however, the adsorption capacity of the secondary fines decreased rapidly during the course of recycling and showed lower adsorption capacily than primary fines.

• 유기물자원화
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• 제4권1호
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• pp.83-98
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• 1996

최근들어 유리병 재활용에 대한 관심이 고조되고 있다. 이것은 자원의 절약과 쓰레기 감량화의 관점에서 볼때 유리병 재활용의 중요성이 점점 더 크게 부각되고 있기 때문이라 생각된다. 본 논문에서는 국내 유리병 회수 재활용 체계의 현황과 문제점을 분석해 보고 외국의 재활용 현황을 요약하였다. 또한 시민들의 의식 조사에 기초하여 유리병의 재활용 증진을 위한 법적, 제도적 개선방안을 제시하였다.

• 자원리싸이클링
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• 제21권4호
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• pp.60-68
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• 2012

반도체 및 태양광 산업에서는 반도체 소자 및 솔라셀을 제조하기 위하여 실리콘 웨이퍼가 사용되고 있다. 실리콘 웨이퍼는 실리콘 잉곳의 절단으로부터 만들어지며 이 공정에서 실리콘 슬러지가 발생한다. 반도체 소자의 사용처가 점점 증가함에 따라 실리콘 슬러지의 발생량 또한 증가하고 있는 실정이다. 최근 경제적인 측면과 효율성에 관한 측면에서 실리콘 슬러지의 재활용 기술이 폭넓게 연구되고 있다. 본 연구에서는 실리콘 슬러지의 재활용 기술에 대한 특허와 논문을 분석하였다. 분석범위는 1982년~2011년까지의 미국, EU, 일본, 한국의 등록/공개된 특허와 SCI 논문으로 제한하였다. 특허와 논문은 키워드를 사용하여 수집하였고, 기술의 정의에 의해 필터링하였다. 특허와 논문의 동향은 연도, 국가, 기업, 기술에 따라 분석하여 나타내었다.

• 자원리싸이클링
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• 제21권3호
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• pp.56-64
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• 2012

일반적으로 인쇄회로기판(Printed Circuit Board, PCB)은 다양한 종류의 플라스틱에 세라믹과 금속 성분이 복합적으로 함유되어 있는 것으로 알려져 있다. 따라서 환경적인 보호뿐만 아니라 자원의 재활용의 관점에서 PCB 스크랩으로부터 금속 성분을 분리해내는 것은 중요하다. 본 연구에서는 PCB의 재활용 기술에 대한 특허와 논문을 분석하였다. 분석 범위는 1980년~2011년까지의 미국, 유럽연합, 일본, 한국 등 다양한 나라의 등록/공개된 특허와 SCI 논문으로 제한하였다. 특허와 논문은 키워드를 사용하여 수집하였고, 기술의 정의에 의해 필터링 하였다. 특허와 논문의 동향은 연도, 국가, 기업, 기술에 따라 분석하여 나타내었다.

• 대한안전경영과학회지
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• 제6권2호
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• pp.187-197
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• 2004

The recycling cell formation problem means that disposal products are classified into recycling product families using group technology in their end-of-life phase. Disposal products have the uncertainties of product condition usage influences. Recycling cells are formed considering design, process and usage attributes. In this paper, a new approach for the design of cellular recycling system is proposed, which deals with the recycling cell formation and assignment of identical products concurrently. Fuzzy ART neural networks are applied to describe the condition of disposal product with the membership functions and to make recycling cell formation. The approach leads to cluster materials, components, and subassemblies for reuse or recycling and can evaluate the value at each cell of disposal products. Disposal refrigerators are shown as an example.

• 대한안전경영과학회:학술대회논문집
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• 대한안전경영과학회 2000년도 춘계학술대회
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• pp.111-123
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• 2000

The recycling cell formation problem means that disposal products are classified into recycling part families using group technology in their end of life phase. Disposal products have the uncertainties of product status by usage influences. Recycling cells are formed considering design, process and usage attributes. In this paper, a novel approach to the design of cellular recycling system is proposed, which deals with the recycling cell formation and assignment of identical products concurrently. Fuzzy clustering algorithm and Fuzzy-ART neural network are applied to describe the states of disposal product with the membership functions and to make recycling cell formation. This approach leads to recycling and reuse of the materials, components, and subassemblies and can evaluate the value at each cell of disposal products. Application examples are illustrated by disposal refrigerators, compared fuzzy clustering with Fuzzy-ART neural network performance in cell formation.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2001년도 The 6th International Symposium of East Asian Resources Recycling Technology
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• pp.34-39
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• 2001

Following the trends around the world in the 1990's, Australia has been promoting recycling as a means to reduce wastes and at the same time improve the economics of metal processing. Of significance to the metal processing industry is the recycling of steel and aluminium, mostly from cans collected from households. The recycling of cyanide during gold processing has also been evaluated extensively, involving many R&D activities currently conducted in several laboratories and commercial plants in Australia. This paper presents an overview of the above issues, evaluating facts and data collected on metal recycling. The technologies currently developed and evaluated for cyanide recycling are also discussed.

• 펄프종이기술
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• 제36권1호
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• pp.30-36
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• 2004

Waste papers(MOW and ONP) were deinked with alkaline cellulolytic enzyme from Coprinus cinereus 2249. The effectiveness of alkaline enzyme on sticky contaminant removal and bleaching of recycling pulp was investigated. The conclusions obtained from the results are as follows. The brightness of deinked pulps MOW and ONP was most high in 0.4IU enzyme treatment. \circled2 The removal effect of sticky contaminant was enhanced with alkaline cellulolytic enzyme treatment. Bleaching with sodium hydrosulfite was most effective in one and two stage bleaching after enzyme treatment of mixed wastepaper of MOW and colored paper. \circled4 The brightness of alkaline enzyme deinked ONP was increased 20％ with $H_2O$$_2$ bleaching.

• Asian Journal of Business Environment
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• 제2권1호
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• pp.15-18
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• 2012

South Korea has made remarkable achievements and gained many experiences on waste disposal and recycling, which help our country to develop cyclic economy and construct a harmonious society. This paper summarizes the policies, regulations and specific practices on waste disposal and recycling including industrial waste and household waste in South Korea so as to provide some references for the establishment of policies related to the waste recycling in our country.