• Journal of agriculture & life science
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• v.51 no.2
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• pp.165-173
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• 2017

To evaluate performance of the experimental pick-up type pulse crop harvester for harvesting sprout bean, its pick-up and discharging grain loss ratios, grain quality such as whole grain ratio, damaged grain ratio, unthreshed grain, and foreign material ratio in grain tank, germination rate of threshed grain, and theoretical field capacity of the harvester were analyzed according to engine speeds of 2000, 2400 and 2800 rpm and harvesting speeds of 0.6, 1.0 and 1.4 m/s. It is considered that the harvester showed optimum performance at the engine speed of 2800 rpm and the harvesting speed of 1.0 m/s, and then average pick-up grain loss ratio of 2.7%, discharging grain loss ratio of 0.5%, whole grain ratio of 99.3%, damaged grain ratio of 0.2%, unthreshed grain ratio of 0.0%, foreign material ratio of 0.2%, and germination rate at 8 days after seeding of 72.8% were shown. It is considered that the harvester has lower grain loss and higher grain quality than the imported bean combines. And also as it could harvest 3 rows of cut and dried sprout bean crop width of which was about 2 m, its effective field capacity was estimated for about 50 a/h.

• Journal of Energy Engineering
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• v.13 no.3
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• pp.173-180
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• 2004

A technique of the heat rate allocation was devised to monitor the performance of Combined Cycle Power Plant. This calculates the expected heat rate of current conditions and compares it with actual values. Loss allocation in heat rate is reconciled by calculating the magnitude of the deficiency contributed by major components, such as the gas turbine, heat recovery steam generator (HRSG), steam turbine and condenser. Expected power output is determined by a detailed model and correction curves of the plant.

• Korean Journal of Organic Agriculture
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• v.15 no.3
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• pp.319-330
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• 2007

This study analyzed physical and chemical characteristics of peat soil to use peat soil as the materials fur pot media and investigated seedling quality of horticultural plants in order to use peat soil as the raw materials fur pot media. The summary of the results is as follows; The chemical characteristics of peat soil, which is main ingredient of pot media are as follows; pH was 4.9, EC was less than $2.0ds{\cdot}m^{-1}$, which interferes the growth of the plant and organic ingredient was 33%. When looking into the germination characteristics of plants according to the mixture of pot media, red pepper showed 54.2% speed of germination and 97% germination rate in peat soil single treatment. Therefore the peatsoil was appropriate for the pot media for red pepper. In case of cucumbers, in the 50 : 50 treatment of main ingredient (peat soil) and auxiliary ingredients (vermiculite, peat moss and perlite) they showed 100% speed of germination and 100% germination rate. Therefore 50 : 50 treatment was appropriate fur the pot media for cucumbers. In case of chinese cabbage, peat soil, perlite and peat moss mixture (50 : 25 : 25) treatment showed the highest speed of germination (77.5%), while the germination rate was a little lower (92.15%) than comparative soil. However, it was appropriate for the pot media for chinese cabbage. In case of watermelon, germination was bad because of the influence of EC when the teat soil ingredient is over 80%. However, in the mixture of peat soil and vermiculite (50:50) treatment, they showed 91.6% speed of germination and 100% germination rate. Therefore it was appropriate for the pot media for watermelon. When looking into the growth of the plants according to the mixture of ingredients, peat soil and perlite (50:50) mixture showed excellent seedling quality for cucumbers, peat soil and perlite (50:50) mixture showed excellent seedling quality and it was proven to be appropriate for the pot media for cucumbers. In case of watermelon, peat soil, peat moss and perlite (80 : 10 : 10) mixture showed excellent seedling quality and it was proven to be appropriate for the pot media for watermelon.

• Proceedings of the Korean Society for Food Science of Animal Resources Conference
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• 2004.10a
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• pp.371-374
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• 2004

본 연구는 식물성 에스트로겐인 isoflavone 배당체의 ${\beta}-1,4\;glycoside$ 결합을 ${\beta}-galactosidase$로 분해하여 그 생리적 작용이 더욱 효과적인 aglycone화 하기 위한 조건을 연구하여 기능성식품개발에 응용토록 하는데 목적이 있다. 실험 결과, 모든 ${\beta}-galactosidase$가 ${\beta}-1,4\;glycoside$ 결합의 분해력이 인정되지는 않았으며, 분해 가능성이 인정된 효소를 선택하여 실험한 결과 효소의 함량이 증가함에 따라 aglycone의 성분비율이 증대된 반면, 그 손실률 또한 증대되었고 배양시간이 길수록 aglycone의 성분비율이 증가하였으나 배양초기에 급격한 증가율을 보였으며, pH6과 7, 8에서 유사한 정도의 증가율을 보였고, 온도가 증가함에 따라 aglycone 성분비율이 증가되었지만 $40^{\circ}C$이상에서는 그 손실률이 크게 증가하였다. 결과적으로 판단해 볼 때, isoflavone을 aglycone화 하는데 있어 인체 내 유사조건에서 aglycone의 증가율이 높았으며 최적의 조건과 많은 차이를 나타내지 않았고 그 손실률 또한 최소화된 결과를 나타내어 isofalvone을 적용한 기능성 유제품을 연구하는데 있어 긍정적인 가능성을 보였다.

• Proceedings of the Safety Management and Science Conference
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• 2000.11a
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• pp.111-111
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• 2000

기업의 성장과 더불어 일반적으로 산업재해로 인한 손실비용이 증가하는 추세이며, 이는 기업이나 국가적으로 그 만큼의 이익분에 대한 손실로 발생되어진다. 영국의 경우 재해로 인한 손실비율이 기업이익의 5∼10%를 차지하고 있는 것으로 최근 조사되고 있다. 따라서 기업의 경쟁력 향상을 위하여 재해로 인한 경제적 손실비용의 정확한 파악과 분석이 요구되어지고 있다. 따라서 본 연구에서는 재해손실 비용의 파악과 그 분석 기법의 체계적 비교 조사 하였다.

• Journal of the korean Society of Automotive Engineers
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• v.4 no.3
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• pp.10-17
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• 1982

이글에서는 1. 마찰손실의 사고방식 2. 마찰손실의 내역과 제인자의 영향 1) 기계마찰에 대한 기관각부의 비율 2) 실린더 내압, 회전속도, 부하의 영향 3)윤활유점도의 영향 4) 행정/안지름비의 영향 5) 베어링축 및 오일클리어런스의 영향 6) 기관치수의 영향 7) 모우터링시와 발화운전시의 마찰손실의 비교 3. 마찰에 의한 경제적 손실 등에 관하여 알아보았다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.16 no.9
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• pp.1906-1914
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• 2012

In this paper, relative service differentiation in JET based optical burst-switched networks with deflection routing is presented. It differs from conventional schemes in that it tries to make the loss rate of high class bursts as low as possible while maintaining the desired proportional ratio between the high class bursts and low class bursts. Strategies applied to it are dynamic wavelength allocation and the preemption which are combined to deflection routing. With dynamic wavelength allocation, the number of wavelengths allocated to high class bursts are dynamically changed. Preemption which gives more preference to high class bursts is also applied to decrease its loss rate. To lower the loss rate, deflection routing is applied for any kind of traffic. With those strategies, the suggested scheme shows desired properties that the loss rate of high class traffic is as lowered as possible. A queueing model for the scheme is developed to approximate loss ratio and the numerical results show that the proposed scheme provisions relative service differentiation.

• 선박안전기술공단연구보고서
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• s.3
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• pp.1-89
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• 2007

우리나라의 경우 해양사고에서 어선이 차지하는 비율은 매우 높아 최근 5개년 동안 전체 해양사고중 어선사고 척수 및 비율은 4,361척 중 2,967척으로 68%를 점유하고 있으며 또 어선에 있어서 총톤수 20톤 이하의 소형어선에 의한 사고가 85%를 차지하고 있다.어선의 사고유형을 분석해 보면 기관손상이 30%정도 충돌･전복･침몰 사고가 30% 정도, 기타사고가 40%로 분석되고 있다. 따라서 해양사고비율이 가장 높은 어선사고로 부터 인명손실을 예방하기 위한 실용적이고 효과적인 대책이 시급한 실정이다.본 연구는 어선사고 중 다른사고에 비해 막대한 인명피해나 재산상의 손실을 초래하는 어선사고 유형인 전복/침몰･화재와 최근에 많이 발생하고 있는 낚시어선사고와 어업재해사고를 중점대상으로 사례조사를 통하여 자율적인 어선 인명사고 예방체제 수립 및 어업종사자의 안전의식 고취를 제고하기 위함이다.

• Journal of Korea Ship Safrty Technology Authority
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• s.24
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• pp.38-56
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• 2008

우리나라의 경우 해양사고에서 어선이 차지하는 비율은 매우 높아 최근 5개년 동안 전체 해양사고 중 어선사고 비율이 약 68%를 점유하고 있어 해양사고 비율이 가장 높은 어선사고로 부터 인명손실을 예방하기 위한 실용적이고 효과적인 대책이 시급한 실정이다. 본 연구는 어선사고 중 다른 사고에 비해 막대한 인명피해나 재산상의 손실을 초래하는 어선사고 유형인 전복.침몰.화재와 최근에 많이 발생하고 있는 낚시어선사고와 어업재해사고를 중점 대상으로 사례조사를 통하여 자율적인 어선 인명사고 예방체제 수립 및 어업종사자와 안전의식 고취를 제고하고자 한다.

• Plant Journal
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• v.11 no.2
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• pp.45-51
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• 2015

In this paper, studied condenser operating management which is affecting power plants efficiency considering the cost of poor quality. Sea water temperature and condenser pressure have clear correlation in S power plants. As the sea water temperature changes, condenser pressure changed -1.7~+20 mmHg from design condenser pressure(38.1 mmHg). Use the heat rate correction curve from manufactory company, realized that efficiency and cost of poor quality changed 0.0201%, 12,830 won/h at Unit #1,2 but 0.0155%, 9,832 won/h when condenser pressure 1 mmHg rise. Also, checked that it is changed depend on seasonal corresponding operation, plant ageing and the point of preventive maintenance like overhaul maintenance. This study said if we considered complying with management range and planning overhaul maintenance, then it could help reducing operating maintenance losses minimum 2.5 billion won per 1 year (case : Unit #1, forty days maintenance).