• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2005.10a
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• pp.311-315
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• 2005

• Journal of the Korean Recycled Construction Resources Institute
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• v.10 no.4
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• pp.547-552
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• 2022

In this study, we secured a technology for manufacturing expanded glass of uniform quality by using general tempered glass, that is, window glass, among automotive glass that is scrapped, and verified whether the manufactured expanded glass can be used for lithium battery fire suppression. The process of manufacturing expanded glass using waste glass is generally divided into Crushing → Milling → Granulation → Expansion → Cooling. With several trials a nd errors. It is obtained a yield of 0.5 ø mm to 2 ø mm spherical particles of 80 % or more. By comparing the surface analysis and physical properties, a more suitable sample was selected as a fire extinguishing agent for lithium batteries, and it was confirmed that the result of the adaptability test for lithium battery fire was satisfactory.

• The monthly packaging world
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• s.180
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• pp.95-105
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• 2008

식품의약품안전청은 기구 및 용기.포장의 규격 중 유리제, 도자기제, 법랑 및 옹기류에 대해 납,카드뮴 규격을 강화해 국제화 및 식품용기의 안전관리를 도모하고자 기구 및 용기.포장의 기준 및 규격을 개정 고시했다. 주요내용으로는 유리제, 도자기제, 법랑 및 옹기류의 납,카드뮴 규격을 강화하고 폴리아미드/나일론 중 4.4 '-메틸렌다이아닐린 용출규격을 신설했으며 납, 카드뮴 시험법을 개정했다. 본 고에서는 개정안과 함께 신.구조문을 비교해 알아보도록 한다.

• 보일러설비
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• s.8
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• pp.80-81
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• 1989

• The monthly packaging world
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• s.109
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• pp.59-61
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• 2002

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2003.11a
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• pp.524-531
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• 2003

The usefulness of vitrification technology for low- and intermediate- level radioactive wastes was demonstrated because of high volume reduction, mechanical and chemical stability of final waste forms. Thus, a construction of the commercial vitrification plant Is currently promoted. Due to the high radiation level of the waste, shielding analysis has to be carried out for safe design in a vitrification facility. Because there has been no experience in the construction and operation of the vitrification facility in Korea, in this study, in order to get some information for help the detailed design and plan for operation in vitrification facility, shielding analysis for each facility in pilot plant is carried out by using source term from established study. For the selection of the shielding material, concrete was chosen compared to the lead because of economic advantage, weight consideration, and thermal resistance.

• Product Safety
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• s.191
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• pp.38-41
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• 2009

최근의 소득세법은 저출산 극복을 위해 부양가족이 많은 납세자에게 유리하도록 개정되었으며, 중 저소득층의 세부담을 경감하여 경제 활성화를 추진하는 방향으로 개정되었다. 근로소득자의 최대 관심사인 연말정산을 미리 미리 대비하는 차원에서 연말정산 관련 개정세법의 주요 내용을 미리 살펴보기로 한다.

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.28 no.1
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• pp.15-21
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• 2022

The purpose of our study was to investigate the migration level of lead (Pb), cadmium (Cd), and barium (Ba) from glassware into a food simulant and to evaluate the exposure of each element. The test articles were glassware, including tableware, pots, and other containers. Pb, Cd, and Ba were analysed by Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES). The analytical performance of the method was validated in terms of its linearity, limit of detection (LOD), limit of quantification (LOQ), recovery, precision, and uncertainty. The monitoring was performed for 110 samples such as glass cups, containers, pots, and bottles. a food simulant. Migration test was conducted at 25? for 24 hours in a dark place using 4% acetic acid as a food simulant. Based on the data; exposure assessment was carried out to compare the estimated daily intake (EDI) to the human safety criteria. The risk levels of Pb and Ba determined in this study were approximately 1.9% and 0.3% of the provisional tolerable weekly intake (PTWI) and tolerable daily intake (TDI) value, respectively, thereby indicating a low exposure to the population.

• Journal of the Korean Vacuum Society
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• v.4 no.1
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• pp.32-39
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• 1995

SnO2/AI/Ag/AI/SnO2층 구조로 이루어진 열처리 가능한 열선반사막을 직류 스퍼터링법에 의해 soda-lime silicate 유리위에 형성시켰다. 이 코팅유리를 $650^{\circ}C$에서 열처리하면 가시광선 투과율 85%이상, plasma wavelength 970nm 이하를 얻을 수 있었다. 따라서 이 구조의 막은 유리 곡가공에 견디는 열적 안정성을 나타내었으며, 코팅유리의 열처리에 따른 전기적 특성 및 열적 안정성은 각각 Ag와 AI층의 두께에 의존하였다.

• Journal of the Korea institute for structural maintenance and inspection
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• v.21 no.5
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• pp.30-41
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• 2017

Types of noise barrier installed for noise attenuation are largely divided into noise-absorbing format and noise-proofing format. In these days, installation of transparent noise barrier is general trend to solve problems that hinder sunshine and landscape. Some kinds of transparent boards are used to one of components in noise barriers, but in some cases, less transparency and worse pollution due to yellowing phenomena, and severe material deformation are to harm the urban aesthetics Therefore laminated-tempered glass board in that yellowing phenomena does not occur can be replaced as a transparent one to secure those shortcomings. In this paper, the structural safety against train induced vibration and the resistibility to wind load are analyzed for laminated-tempered glass system as a component of noise barrier installed on Metro railway elevated bridges. Also the appropriateness is evaluated through flexural bending performance test, compressive strength test, modulus of elasticity tests, and impact test for the system or the glass material itself. All of these processes are intended to present the deployment of logic to evaluate the adequacy for the system.