• Journal of the Korea Academia-Industrial cooperation Society
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• v.6 no.2
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• pp.189-194
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• 2005

The food wastes recycling system should be constructed before 2005 in the city area. In order to manufacture the good compost, salt remaining rate should be minimized. We studied the effective method of minimizing salt ratio by diluting with low water ratio. We got the salt remaining ratio less than 0.3% by effective fragmentation method, and we applied the IR heating in order to make good compost.

• 한국약용작물학회:학술대회논문집
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• 2008.05a
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• pp.156-157
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• 2008

• Proceedings of the KAIS Fall Conference
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• 2004.11a
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• pp.324-327
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• 2004

음식물류 폐기물은 염분이 물에 잘 녹기 때문에 분쇄 후 용수를 첨가하여 희석하는 방법이 가장 우수한 염분 제거 효과를 나타낸다. 보통 음식물류 폐기물의 양에 비하여 2-3배의 공업용수를 첨가하는 방법을 사용하는데 폐수처리장 부근에 설치되어 탈리액을 폐수와 함께 처리하지 않을 경우 탈리액의 처리가 문제가 된다. 많은 지역의 폐기물 처리장이 하수처리장과 별도의 장소에 설치가 된 경우가 많으므로 물을 소량사용하면서 염분을 효과적으로 제거할 수 있는 방안이 필요하며 효과적인 파쇄과정을 통하여 $0.3\%$ 미만의 염분 함유율을 달성할 수 있는 방안을 제시한다. 또한 미성숙 퇴비의 문제점을 효과적으로 해결하기 위한 원적외선 가열을 통한 발효촉진 방안을 제시한다.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2000.11a
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• pp.225-228
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• 2000

Addition effects of metal oxide on the characteristics of infrared radiator of porous cordierite have been investigated. The porosity was increased with adding the graphite for 2MgO $.$ 2A1$_2$O$_3$$.$5SiO$_2$. The microstructure and the spectral emissivity were investigated as a function of metal oxide additives. The prosity and the emissivity were decreased with increasing amounts of CuO additives. The prosity and the emissivity were increased with increasing amounts of CoO, MnO$_2$ additives. The infrared radiator of cordierite system which spectral emissivity was 0.927 and 0.928 at from 5$\mu\textrm{m}$ to 20$\mu\textrm{m}$ wavelength as a 9wt% of CoO and MnO$_2$ additives.

• Journal of Power System Engineering
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• v.10 no.1
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• pp.71-76
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• 2006

This paper aims to study several type heaters which are mica heater, film heater, quartz heater and rod heater and to get an temteraturel and electrical characteristics. These four type heaters have a merit in many fields than present electric heater with nichrome wire. Carbon and mica plate heater have higher heat efficiency and less electromagnetic waves. Also it has been reported that far infrared ray emission from this heater is good for our health. Additionally heating element is thin and lighter plate. For these reasons, they will be widely used to various application such as room-heating or manufacturing goods. Experimental result confirmed that when 220V current authorized, the temperature, electric current, electric power and the resistance rise to stationary state in early stage. Moreover, the temperatures and electric characteristics show a good stability.

• Journal of the Korean Society of Tobacco Science
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• v.23 no.1
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• pp.12-18
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• 2001

This study was conducted to investigate the effect of tobacco curing on far infrared light on the quality of flue-cured tobacco leaves. Physicochemical characteristics such as alkaloid, total sugar, total nitrogen, starch, total phenolic compounds, browning degrees, and color differences, in cured tobacco leaves were compared between hot air and far infrared curing methods. There was no significant difference in sugar/nicotine ratio and nitrogen number between the curing methods, while the contents of ether extract and filling capacity were increase by far infrared curing. Therefore, it was expected that far infrared curing might be effective for high aroma and physical properties of the cured tobacco leaves.

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2011.11a
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• pp.64-64
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• 2011

머드는 알루미늄, 철, 마그네슘 등의 미네랄이 풍부하여 원적외선 방사율이 높고, 미량 포함된 단백질과 비타민은 피부의 세포조직을 강화하고 탄력성을 주며, 항균, 소취 등의 기능을 보유하고 있다. 이러한 유익한 기능을 가진 머드를 매일 사용하는 면타올에 적용하려 하나 무기 염재인 머드는 섬유와 친화성이 없어 일반 염료처럼 고농도로 섬유에 염색되지 못하고 있다. 본 연구에서는 섬유의 촉감에 영향을 미치지 않으면서 머드의 염색농도를 높이기 위해, 4종의 고착제를 이용한 염색법을 검토하였다. 먼저 식물성 단백질액으로 면타올을 전처리하고 나노입자의 머드액를 사용하여 염착시킨 경우가 가장 진하게 염색되며, 염색견뢰도 측정 결과 세탁과 땀에 모두 우수한 것으로 나타났다.

• Korean Journal of Food Science and Technology
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• v.39 no.5
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• pp.494-499
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• 2007

The quality and functional properties of red ginseng in relation to steaming and drying conditions were evaluated. Fresh ginseng (5-year roots), cultivated in the Punggi region, were steamed for 2.5, 3.5, or 4.5 hr, and then dried by hot-air (60-$65^{\circ}C$/24 hr and $40^{\circ}C$,/3-4d) freezing ($-80^{\circ}C$/56 hr), and infrared (900 W/$62^{\circ}C$/68 hr). Hunter#s yellowness (b-value) and browning indexes (420 nm) of the samples were higher in the rootlets than in the main roots. Furthermore, these same index values were found to be high in the order of 3.5, 4.5, and 2.5 hr and infrared, hot-air, and freezing for steaming and subsequent drying, respectively. Analysis of soluble solids, total phenolics, total flavonoids, acidic polysaccharides, and electron donating abilities of the steamed and dried samples showed that 3.5hr of steaming with infrared drying was optimal. However, crude saponin contents were not influenced by steaming and drying conditions. The contents of $ginsenoside-Rg_l$, -Re, -Rf and $-Rb_2$, which were the major components in the samples, were reduced with steaming time, while the amounts of $-Rg_3$ and $-Rh_2$ increased, reaching the highest levels at 3.5 and 4.5 hr in the main roots and rootlets, respectively. The contents of $-Rg_3$ and $-Rh_2$ were similar in both the freeze-dried and hot-air dried samples.

• Proceedings of the KIEE Conference
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• 2011.07a
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• pp.1274-1275
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• 2011

This paper study effects that measured hamony occurence and changes of current and voltage according to variation of temperature of Far Infrared Ray Radiant Oven's room affect power quality.

• Journal of the Korean Vacuum Society
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• v.15 no.2
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• pp.223-230
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• 2006

We have investigated the characteristics of hydrogen (H) plasma treated quantum dot infrared photodetectors (QDIPs). The structure used in this study consists of 3 stacked, self assembled $In_{0.5}Ga_{0.5}As/GaAs$ QD layer separated by GaAs barrier layers that were grown by molecular beam epitaxy. Optical characteristics of QDIPs, such as photoluminescence (PL) spectra and photocurrent spectra, have been studied and compared with each other for the as grown and H plasma treated QDIPs. H plasma treatment, resulted in the splitting of PL peak, which can be attributed to the redistribution of the size of QDs. The activation energies estimated from the temperature dependence of integrated PL intensity for as grown and H plasma treated QDIPs are found to be in good agreement with those determined from corresponding peaks of photocurrent spectra. It is also noted that photocurrent is detected up to 130 K for the H plasma treated QDIP, suggesting the future possibility for the development of infrared photodetectors with high temperature operation.