• 축산식품과학과 산업
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• v.8 no.1
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• pp.58-59
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• 2019

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2002.11a
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• pp.166-171
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• 2002

폐자원의 재활용은 현재 미래산업을 발전시키는데 중요한 변수로 작용하고 있으며, 폐플라스틱의 경우 통신 케이블 덕트, 고속전철용 케이블 덕트, 선박용 구조체등 고부가가치 제품으로의 기술개발이 활발히 진행되고 있다. 폐 Polyolefin 계열의 수지는 성형가공이 적절한 MFI(Melt flow index)와 뛰어난 기계적 물성, 가공 성형성 등으로 인해 다양한 형태와 용도로 recycling되고 있으나, 재생시 다수 Grade에 의한 분별, 분리수거의 어려움, 상용성결여, 난연성 부재 그리고 70% 대의 기계적 물성 회복율로 인해 그 용도가 제한되고 있는 실정이다.(중략)

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2003.05a
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• pp.418-421
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• 2003

경량ㆍ고강도 기능성 Composite는 경량구조재료로 차량, 항공기, 선박 및 각종 설비의 안전구조재로 그 용도가 다양하게 사용되고 있다. 특히 폐플라스틱을 이용한 경량구 조재는 가격 경쟁력이 높고 또한 환경 및 자원 재활용 측면에서 관심이 고조되고 있다. 고강도, 안전성 확보를 위해 사용가능한 폐플라스틱 소재로는 가공성이 용이한 폐Polyethylene(PE), 폐Polypropylene(PP), 폐Polyethyleneterephthalate(PET) 등을 주원료로 가공되나, 기계적 특성이 저하되어 이의 개선을 위해 여러 가지 형태의 충진재의 혼합을 통해 개선하고자 하는 연구가 진행되어 왔다.(중략)

• Proceedings of the Korean Society for Information Management Conference
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• 2001.08a
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• pp.201-206
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• 2001

새로운 정보환경과 매체의 발전으로 인하여 오늘날 대학도서관은 인쇄자료와 전자자료, 웹 자원이 공존하여 수집, 가공, 유통되고 있다. 이에 본 연구는 도서관 내·외적인 정보환경과 운영환경의 변화 요인을 수용하여 새로운 평가모형을 개발하고자 전통적인 도서관의 기능을 기반으로 하여 디지털 형태 정보의 수집, 가공, 유통을 통합한 하이브리드(Hybrid)형태의 디지털도서관 평가모형을 제안하고자 한다.

• Resources Recycling
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• v.27 no.1
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• pp.3-13
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• 2018

3D printing, also known as Additive Manufacturing (AM), is being positioned as a new business model of revolutionizing paradigms of existing industries. Launched in early 2000, 3D printing technology for architecture has also advanced rapidly in association with machinery and electronics technologies mostly in the United States and Europe. However, 3D printing systems for architecture require different mechanical characteristics from those of cement/concrete raw materials used in existing construction methods. Accordingly, in order to increase utilization of raw materials produced in the cement and resource recycling industry, it is necessary to develop materials processing and utilization technology, to secure new property evaluation and testing methods, and to secure database related to environmental stability for a long period which aims to reflect characteristics of an architectural 3D printing technology.

• Proceedings of the Korean Society of Crop Science Conference
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• 2019.04a
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• pp.183-183
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• 2019

• Resources Recycling
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• v.20 no.1
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• pp.69-79
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• 2011

Recently, magnesium alloys are in the spotlight as a promising materials in the fields of automobile parts and electronic appliances due to their merits representing light weight, high specific strength, damping property, shielding of electromagnetic wave and so on. However, magnesium alloys show a poor formability at room temperature because magnesium has HCP crystal structure with limited slip planes and strong basal texture is formed during plastic deformation process such as rolling and extrusion. Therefore, many R&D efforts have been paid for improvement of formability through grain refinement, texture control and various forming technologies. This paper is giving an overview about recent achievements on control of microstructures, forming technologies and magnesium scrap recycling.

• Resources Recycling
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• v.18 no.6
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• pp.46-53
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• 2009

The stone dusts produced during the manufacturing process of stone blocks are considered as one of industrial waste materials. This stone dusts are managed to either burying under the ground or stacking in the yard, but this disposal process is required an extra costs. The stone dust disposal like burying or stacking also cause environmental pollution such as ground pollution and subterranean water pollution. Thus, this study was conducted to explore the possibility of recycling stone dusts as a concrete mixing material in order to extend recycling methods. Based on the experiment results on various ratios of cement to stone dust content, the compressive strengths of concrete were recorded in the range of $20{\sim}30\;N/mm^2$. The results did not show any decrease in compressive strength due to the stone dust content. It can be concluded that the stone dusts produced by stone block manufacturing can be sufficiently recycled as one of concrete mixing materials in the aspect of compressive strength.

• Proceedings of the Korea Contents Association Conference
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• 2003.05a
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• pp.323-326
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• 2003

There are marv problems in conventional database Construction of foreign scientific journal from material aquisition to DB loading. This paper's purpose is to design database construction model which utilizes available information resources scattered several locations and uses agents technology to gather essential metadata efficiently. This paper describes component informations of foreign scientific database and related available resources. And it describes a process of DB construction that include metadata gathering method, automatic metadata classification method, and metadata quality monitoring method.

• Resources Recycling
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• v.13 no.4
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• pp.17-22
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• 2004

This study was focused on the treatment of thickened sewage sludge. General bacteria and E. coli were disinfected over 99％ and organic compounds were decomposed after irradiation. It was suggested that this process can be an alternative for digestion Process. The moisture content in sludge was decreased over 10％ (w/w) and the coagulation of sludge particles was enhanced by irradiation at the dose of 15 kGy and addition of sea waste resource (star-fish) as a dewatering aid.