• Conservation Science in Museum
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• v.7
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• pp.11-24
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• 2006

Plate armour is an important cultural property that reflects the ancient weaponry and the manufacturing technology of ironware as they are. Among the kinds of iron armour, horizontal plate armour has been very rarely excavated, and there are a few artifacts in their unimpaired shape like the plate armour excavated from Mangisanseong. This report reviews the manufacturing technology of ancient plate armour through its radiograph using appliable nondestructive irradiation and scientific conservation treatment. The seven-tiered plate armour excavated from Mangisanseong has ring hinge to open and shut the right side neck guard. The readout result of radiograph proved iron safety guard of Godaepan (a plate that links neck plate and horizontal plate) and leather safety guard of the right armpit with plate overlap and perforation interval; perforations that seem to have linked shoulder strap on wearing the armour are also observed. In particular, it is identified that the perforation and riveting technique avoided the connection of more than three plates with a rivet. This is an important material to illustrate the best use of function of plate armour overcoming its limit.

• Proceedings of the Optical Society of Korea Conference
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• 2005.02a
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• pp.56-57
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• 2005

• Congress of the korean instutite of fire investigation
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• 2011.04a
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• pp.98-101
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• 2011

• Fire Science and Engineering
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• v.29 no.4
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• pp.49-56
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• 2015

Toxic gases from five types of interior building materials were investigated according to Naval Engineering Standard (NES) 713. The materials were plywood, indoor wall coverings (wood wall plate members and pine wood), reinforced Styrofoam insulation, laminate flooring, and PVC. Specimens were measured using an NES 713 toxicity test apparatus to analyze the hazardous substances in combustion gas from the materials. We used the US Department of Defense standard (MIL-DTL, Military Standard) to calculate the toxicity index of the combustion gas. Emissions of $CO_2$ from all specimens did not exceed the NES 713 limit of 100,000 ppm. The amount of CO gas emissions from reinforced Styrofoam insulation was 6,098 ppm. 25 ppm and 49 ppm of formaldehyde were released from the reinforced Styrofoam insulation and PVC flooring, respectively. These values were less than the limit of 400 ppm. The highest emissions were from $NO_X$ emitted by plywood and were above the limit of 250 ppm. The toxicity index of the specimens were calculated as 5.19 for plywood, 4.13 for PVC flooring, 2.35 for reinforced Styrofoam insulation, 2.34 for laminate flooring, and 1.22 for indoor wall coverings (pine wood). Our research helps us to understand the properties of these five interior materials by analyzing the combustion gas and explaining the toxicity of constituents and the toxicity index. Also, it would be useful for giving fundamentals to guide the safe use of interior materials for applications.

• Journal of the Korean Society of Food Science and Nutrition
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• v.41 no.10
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• pp.1460-1466
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• 2012

The purpose of this study was to evaluate plasticizer pollution levels in mudflat solar salt, salt water and sea water of the nationwide saltpan. Also, it was analyzed the relationship between DEHP in solar salt and PVC mat following private period. DEP (ranging from 0.00 to 1.55 ppb), DIBP (0.00~2.38), DBP (0.00~4.90), DEHA (0.00~2.32), and BBP (0.00~1.45) in solar salt were shown a extremely low concentrations, and DEHP was present a concentrations ranging from 0.00 to 268.5 ppb in solar salt. Further, DMP, DPrP, DNPP, DNHP, and DCHP were not detected in all solar salt. Phthalate in sea water and salt water was present a infinitesimal amount levels. DEHP levels in sea water and salt water were not shown a high risk levels ranging from 0.00 to 3.4 ppb, and from 0.00 to 21.4 ppb, respectively. As expected in PVC mat of nationwide saltpan, the correlation between DEHP in solar salt and PVC mat private period showed a low positive correlation coefficient ($r^2$=0.0362).

• 건강소식
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• v.30 no.2 s.327
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• pp.12-13
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• 2006

일반적으로 아이들은 어른보다 활동적인 경향이 있어 적절한 체력수준을 유지한다. 그러나 해부학적, 생리학적, 심리학적으로 미성숙하기 때문에 운동프로그램을 고안할 때 특별한 주의가 필요하다.아이들을 위한 운동프로그램에서 가장 중요한 것이 안정성이다. 아이들은 신체활동 시 부상률이 높고, 지구성운동이 과할 경우 골단성장판을 다칠 수 있기 때문에 더욱 안정에 유의한다. 또한 아이들은 성인에 비해 열자극에 적응하는데 상대적으로 무력하므로 온도가 높은 여름날 야외에서 운동할 경우, 물을 많이 섭취하게 하고 자주 휴식을 취하도록 한다.

• 방재와보험
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• s.147
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• pp.48-49
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• 2013

겨울철만 되면 전국 관공서나 방송에서 화재위험 및 예방에 대해서 강조한다. 그만큼 겨울에는 난방을 위해서 가정, 사무실 공장 등 난방용품을 많이 사용해서 화재위험이 높아지기 때문이다. 특히 비용이 적고 사용이 간편하다는 장점 때문에 전기히터, 전기 장판과 같은 전기를 이용하는 난방용품의 사용이 급증한다. 이렇게 겨울철에 많이 사용하고 있는 전기를 안전하게 사용하는 방법은 무엇일까? 또한, 콘센트에는 전기기기 몇 개나 연결하여 사용할 수 있는 걸까? 이번 호에는 전기안전 및 콘센튿 사용에 관한 화재안전에 대하여 일아보고자 한다.

• 산림경영
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• s.195
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• pp.20-25
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• 2010

오늘날 숯은 알게 모르게 우리 생활에 밀찰되어 많이 사용하고 있는데요. 가정에서 적당한 곳에 숯을 놓아두면 공기를 정화시켜주고, 밥을 지을 때 숯을 넣어두면 찰진밥이되고, 신발장이나 쓰레기통 같은 악취가 나는 곳에는 냄새를 제거해주기 때문에 가정 곳곳에 숯을 놓아두는 경우가 많습니다. 숯 그대로의 쓰임도 좋지만 요즘은 숯샴푸, 숯비누, 숯미용팩, 기능성 숯속옷, 숯베게, 숯장판, 숯벽지, 숯화장품 등 무궁무진하게 숯의 영역이 넓어지고 있답니다. 조상대대로 내려오는 숯의 조상 대대로 전해오는 숯의 다양한 효능을 알아보고, 우리 조상드르이 숯 활용 지혜와 기본적인 효능 그리고 다양한 숯의 쓰임새를 알아보고자 합니다.

• Safe Food
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• v.6 no.3
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• pp.3-10
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• 2011

• Fire Science and Engineering
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• v.34 no.2
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• pp.22-29
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• 2020

In this study, the fire patterns, heat emissions, and smoke generated by means of fire tests developed for representative combustibles in residential facilities were analyzed from among seven fire types. These combustibles were selected in a previous study to simulate real-world situations and professionalism required while dealing with these types of fires and develop the field commander training content. Consequently, the maximum heat dissipation was recorded as 728.6 kW, followed by the dissipation measured from the combination of a mattress and electric blanket, desk and chair, and TV and mattress. The total heat emission of sofas (226.2 MJ) and the combination of mattress and electric blanket (2,259.5 ㎡) was recorded. In this study, the scope of the tests was limited to the fire characteristics and characteristics of the combustibles, and it is expected that a simulation using various data acquisition methods and FDS would be performed and evaluated at a later stage.