• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.19 no.5
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• pp.5-12
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• 2010

• Journal of Mushroom
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• v.16 no.4
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• pp.257-262
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• 2018

The aim of this study was to re-use spent mushroom substrate (SMS) with increased total nitrogen (T-N) and amino acid content and reduce the amount of cottonseed meal used as nutrient supplement in Pleurotus ostreatus cultivation. Bacteria used for improvement of the T-N content were GM20-4(Bacillus sp.) and Rhodobacter sphaeroides (RS). GM20-4 was isolated from the SMS of P. ostreatus and RS was obtained from Gwangjusi agricultural technology center. SMS in T1, T2, and T3 was reused as substrate after drying and the T-N content of dried SMS (D-SMS) was increased by 0.34% by treatment with the bacteria. T1 with 8% D-SMS and T2 with 18% D-SMS had higher rates of primordia formation compared with T3 and the control. The biological efficiency of the control and of treatment with 8%, 18%, and 26% D-SMS was 110%, 114%, 112%, and 79%, respectively. Considering the economic cost, yield, and biological efficiency, T2 with 18% D-SMS as the culture substrate for P. ostreatus was shown to be the most effective for cultivation.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.6
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• pp.478-485
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• 2017

The effect of high carbon dioxide and ethylene treatment on postharvest ripening regulation of red kiwifruit (Actinidia melanandra) was investigated during cold storage. Physio-chemical properties such as weight loss, firmness, SSC, acidity, and market quality were analysed in red kiwifruit held at $10^{\circ}C$ compared to the fruit treated with carbon dioxide and ethylene during 75 days of storage. No significant weight loss was detected in red kiwifruit treated with carbon dioxide until 75 days of storage while the most rapid loss was found in fruit treated with ethylene. In ethylene-treated fruit, the firmness was dramatically reduced from 4.2kg on the first day to 1.2 kg after 27 days of storage at $10^{\circ}C$. However, the firmness of the carbon dioxide-treated fruit was 1.8kg after 54 days of storage. The highest level of SSC(%) was investigated within the 27 storage days at $10^{\circ}C$ for fresh red kiwifruit treated with exogenous ethylene, whereas the carbon dioxide-treated fruit exhibited a greatly increased SSC after 64 days. The carbon dioxide-treated red kiwifruit maintained statistically(p<.01) higher levels of acidity compared to the control and the exogenous ethylene-treated ones during 41 days of storage at $10^{\circ}C$. The SSC/Acid ratio of fruit treated with carbon dioxide was significantly lower (p<.01) maintained than the other two treatments (ethylene-treated and control fruit)throughout the 75-day experiment. Based on the quality characteristics of postharvest red kiwifruit, it could be concluded that the carbon dioxide treatment significantly delayed the ripening process and maintained the market quality of harvested red kiwifruit, which can be a potential application for commercial use in the kiwi industry.

• Tribology and Lubricants
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• v.8 no.2
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• pp.1-6
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• 1992

방청유는 오래 전 부터 일시적 녹을 방지할 목적으로 각종 금속제품의 표면처리법으로 사용되어 왔다. 방청유의 특징은 0.5~100mm 정도의 엷은 도막(塗膜)에 의하여 일시적인 녹방지 역할을 함과 동시에, 한편 녹방기 기간 후 다시 도막을 제거하는 것으로 녹방지의 기간, 포장(包裝)의 조건, 보관환경(保管環境), 사용조건 및 후처리공정의 조건 등, 각기 다른 복잡한 요건이 수반되기 때문에 이에 대응하여 방청유의 종류도 다양하게 마련이다. 특히 근간에 이르러서는 포장재의 진보와 더불어 금속제품들의 보관 및 수송환경 개선 등의 위치와 병행하여 방청유에 대한 금속표면처리의 관심도 표면화되어지고 있다. 따라서 본 논고에서는 다양다종한 방청유에 관하여 일일이 설명하기는 매우 곤란하나, 한국 공업규격을 중심으로 한 표제에 대하여 간략하게 기술하기로 하겠다.

• Proceedings of the Korean Society of Fisheries Technology Conference
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• 2002.10a
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• pp.110-111
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• 2002

우리나라에서는 생선회맛을 향상시키기 위하여 활어를 즉살, 방혈 후에 냉장고 등에서 일정시간 보관한 다음에 먹는 방법이 일부 지역, 그리고 일식집에서 행해지고있다. 생선횟감의 사후 물리ㆍ화학적 변화에 영향을 미치는 요인으로는 치사 전에는 어종, 크기, 양식 조건, 취급 조건 등 여러 가지가 있으며, 치사 후에는 치사방법, 조리형태, 방혈유무 등의 영향을 받는다. (중략)

• Proceedings of the KAIS Fall Conference
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• 2008.05a
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• pp.369-371
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• 2008

본 논문은 철강공장의 냉각수 처리 시스템에서 고로 집진수를 대상으로 한 응집교반실험을 실시한 결과, 주기적인 관 갱생작업(산세척)과 분산제의 주입이 필요하며, 음이온 고분자응집제에 양이온 고분자응집제를 첨가하여 사용할 경우에 탁도 제거측면에서 우수하였다. 급속교반 후 완속교반을 적용할 경우 급속교반 후 침전보다 탁도 제어 효과가 더 우수한 것으로 관찰되었으므로, 침전지의 처리효율을 증가시키기 위해서는 급속교반과 완속교반이 동시에 필요하였다.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2003.11a
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• pp.109-116
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• 2003

The amount of radioactive waste is expected to be increased continuously because of the rapid growth of the domestic nuclear industry, full power operation of the HANARO reactor and the increased research activities of the nuclear fuel cycle. Accordingly the efforts are focused to achieve the handling of radioactive waste in safe and reduce the volume of radioactive waste. The PIEF is carrying out the PIE (post irradiation examination) of spent fuel rods related to the identification of cause defect and evaluation of integration safety. This study describes the technologies and experiences of compaction, shredding and cutting of the solid radioactive waste used in the PIE. The quantity of the high level waste was reduced by 1/12 using the 100-ton compressor installed in hot-cell. Also middle and low level waste was reduced by 1/8 using the 60-ton compressor installed in intervention area. Plastic drums were shredded by crusher to be compacted in the ratio of 1/5, used filters in the ratio of 1/6 and the number of drum is also reduced by cutting procedure for the non-volatile materials such as metal.

• Proceedings of the KIEE Conference
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• 2009.07a
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• pp.2263_2264
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• 2009

원자력은 나라의 기저전력을 책임지는 대표적인 발전소다. 시간이 지남에 따라 에너지 수요는 증가하지만 원자력 에너지의 연료인 우라늄은 고갈이 되어가고 있다. 그 해결책으로 고속로 기술에는 소듐 냉각 고속로, 건식처리 방법으로는 파이로프로세싱이 있다. 이 기술로 사용 후 원전연료를 재처리하여 불가 수 십년에 불가한 원전문제를 수 천년으로 늘릴 수 있다. 하지만 우리나라는 사용 후 원전연료에 대해 정책방향이 결정되지 않았으며, 지역단체, 환경단체 등의 단체에서의 반대도 만만치 않을 것이다. 원전연료 관리 정책이 결정되어 국가 에너지안보의 기틀을 마련해야 할 것이다.

• Journal of Korea Society of Industrial Information Systems
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• v.7 no.3
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• pp.74-80
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• 2002

There are many researches on post-processing methods for the Korean continuous speech recognition enhancement using natural language processing techniques. It is very difficult to use a formal morphological analyzer for improving the speech recognition because the analysis technique of natural language processing is mainly for formal written languages. In this paper, we propose a speech recognition enhancement model using syntactic unit of morphemes. This approach uses the functional word level longest match which dose not consider spacing words. We describe the post-processing mechanism for the improving speech recognition by using proposed model which uses the relationship of phonological structure information between predicates md auxiliary predicates or bound nouns that are frequently occurred in Korean sentences.

• Proceedings of the KAIS Fall Conference
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• 2011.05b
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• pp.878-880
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• 2011

이 연구는 유아들의 좌우뇌균형 정도가 인지처리과정에 미치는 영향을 보기 위하여 뉴로피드백 훈련전과 후의 좌우뇌균형 변화와 인지처리과정 변화 차이를 비교하였다. 대상자는 2009년 9월에서 2010년 6월까지 S시 W 유치원 원아 52명(실험군 26명, 대조군 26명)을 기준으로 선정한 자료이다. 훈련 전과 후의 뇌기능 변화는 시계열 선형 분석을 통하여 비교하였으며 연구 검증 결과 뉴로피드백 훈련을 적용한 원아들의 좌우뇌 균형의 변화가 인지처리과정에 유의미한 차이를 보여주었으며, 좌우뇌균형의 정도가 높을 수록 인지처리과정이 빠르다는 결과를 나타내었다,