• 한국진공학회:학술대회논문집
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• 한국진공학회 1996년도 제10회 학술발표회 논문개요집
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• pp.173-173
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• 1996

• 한국진공학회:학술대회논문집
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• 한국진공학회 1997년도 제12회 학술발표회 논문개요집
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• pp.115-115
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• 1997

• Journal of the Korean Wood Science and Technology
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• 제37권5호
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• pp.440-450
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• 2009

In case of wood flooring, the high emissivity would be one of the most important properties especially as the cover material of underfloor heating system. The FIR (Far Infrared) materials such as wood emit FIR energy by heating, which has been used as the medical therapy such as dry sauna. This research investigated the emissivity and the emission power of wood composites by comparing the amount of the three heat transfer modes transferred by infrared radiation which came from the increased temperature of the bottom board of the plywood box by the heater. The results showed the value of radiation mode was the highest mode for the plywood box, and the convection mode was the main mode for the aluminum box. The rate of convection was 81.8% in the aluminum box and 48.2% in the plywood box, respectively. In case of the rate of radiation, the aluminum box showed only 15.4% and the plywood box showed 51%. The emissivity and the emission power of birch plywood showed the same values as those of wood. The amount of energy required for the temperature rising of water within vial in the aluminum box and in the plywood box were 3.32 kJ and 6.70 kJ respectively, which showed that the vial temperature of the plywood box was two times higher than that of the aluminum box.

• 한국진공학회:학술대회논문집
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• 한국진공학회 1997년도 제13회 학술발표회 논문개요집
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• pp.68-68
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• 1997

• 한국진공학회:학술대회논문집
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• 한국진공학회 1997년도 제12회 학술발표회 논문개요집
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• pp.168-168
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• 1997

• 한국도서관정보학회지
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• 제32권3호
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• pp.199-226
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• 2001

이 연구는 한국의 목록규칙 변천과정에 관한 연속연구의 한 부분으로서, '국제표준화 시기'(1954년의$\boxDr$韓 圖書編目法$\boxUl$ $\boxDr$KORMARC 단행본실험용포맷$\boxUl$이 개발된 1980년 이전까지)를 중심으로 다루었다. 이 시기 한국에서 편찬된 목록규칙으로는 $\boxDr$韓 圖書編目法$\boxUl$, $\boxDr$東書編目規程(草)$\boxUl$, $\boxDr$寒國目錄規則$\boxUl$ 초판과 수정판을 들 수 있다. 이 연구에서는 이들 목록규칙의 체계, 내용의 특성을 개관하였다.

• 한국식품영양과학회지
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• 제29권1호
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• pp.76-79
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• 2000

The effects of packaging conditions on freshness extension of squash (Cucurbita moscata) were investigated during 7-day storage at 2$0^{\circ}C$. Weight loss of squash packed with corrugated paperboard box (control) was 5.5%, and those of LDPE (low density polyethylene, Ф0.02 mm), LDPE (Ф0.04mm) film and EPS (expanded polystyrene) box were 0.9%, 0.8%, and 1.1%, respectively. Firmness of EPS was 11% higher than that of control, chlorophill content of squash packed with EPS box was 18.9% higher, and total ascorbic acid content of squash packed with EPS box was 29.4% higher than that of control. Quality of packed squash was not different between EPS packages and LDPE packages. Decay of control was 1~2 pieces per box, but was not found in the LDPE, EPS box. Preferences in overall appearences of LDPE, EPS box was better than those of control.

• Corrosion Science and Technology
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• 제10권3호
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• pp.87-94
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• 2011

The typical corrosion prevention method inside the steel upper box girder in a suspension bridge involves the use of paints. However, in an effort to reduce environmental impact and cost, the suspension portion of the Yeongjong Bridge, Korea utilizes dehumidification systems to control humidity and prevent corrosion inside its box girder. Maintaining a uniform humidity distribution at the proper level inside the box girder is critical to the successful corrosion control. In this study, the humidity and the resultant atmospheric corrosivity inside the box girder of the Yeongjong Bridge was monitored. The corrosion rate of the steel inside the box girder was obtained using thin-film electrical resistance (TFER) corrosion sensors. Time-of-wetness (TOW) measurements and the deposition rates of atmospheric pollutants such as $Cl^{-}$ and $SO_{x}$ were also obtained. Classification of the atmospheric corrosivity inside the box girder was evaluated according to ISO 9223. As a result, no corrosion was found in the upper box girder, indicating that the dehumidification system used in the Yeongjong Bridge is an effective corrosion control method.

• 한국포장학회지
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• 제8권2호
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• pp.27-31
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• 2002

제주산 감귤을 기존의 골판지와 이골판지에 특성이 다른 선도 유지기능성 소재 3종을 상자 내면에 코팅하여 여기에 감귤을 넣고 $25^{\circ}C$에 8일간 저장하면서 선도 유지효과를 조사하였다. 중량은 모든 포장구에서 2.6-3.7%가 감소하였고 산도와 당도는 포장구간에 차가 없었으며 비타민 C 함량은 대조구 보다 R-Box와 Y-Box가 10% 높게 유지되고 있었다. 부패율도 R-Box는 4%였으나 나머지 포장구는 8-11%의 감귤이 부패되었으며 외관도 R-Box가 가장 양호하였다.

• 한국진공학회:학술대회논문집
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• 한국진공학회 1997년도 제13회 학술발표회 논문개요집
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• pp.74-74
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• 1997