• Asian-Australasian Journal of Animal Sciences
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• 제23권7호
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• pp.901-906
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• 2010

The improvement of the fermentation quality of rice straw silage by application of lactic acid bacteria (LAB) and glucose was investigated in this study. Sixteen rice varieties were harvested at the maturity stage and the rice straw was ensiled with LAB inoculant ($1{\times}10^5$ cfu/g of fresh weight) and glucose (2% of fresh weight). Inoculation with LAB improved the fermentation as reflected in reductions in pH, acetic acid (by 3.7 to 78.3%), butyric acid (by -6.0 to 100.0%) and ammonia nitrogen (by 1.0 to 71.7%) concentrations, and increases in lactic acid (by 43.9 to 282.9%) and crude protein concentrations compared with the control. Application of LAB plus glucose was more effective in improving fermentation quality than LAB alone. The variety of rice straw which contained relatively high levels of water soluble carbohydrates (WSC) tended to obtain better fermentation quality. The results suggested that LAB application and selection of rice varieties whose straw contained high levels of WSC were effective in improvement of the fermentation quality of rice straw silage.

• 한국ITS학회 논문지
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• 제12권1호
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• pp.15-27
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• 2013

그간 차량검지기로부터 수집되는 다양한 정보는 주로 실시간 자료로 이용되었으나 최근 교통데이터 이력자료의 활용방안에 대한 중요성이 증대되고 있다. 이러한 배경에서 본 연구는 차량검지기자료의 이력자료 활용을 위한 전처리 개선에 대한 연구를 수행하였다. 실제 교통현상과 가장 가까운 데이터 처리를 목적으로 세부처리로직을 개선하였다. 평가결과 기존 전처리 과정보다 개선 전처리 과정이 실제값에 가까운 결과를 나타내는 것으로 분석되었다.

• 대한안전경영과학회지
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• 제16권3호
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• pp.443-450
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• 2014

The industrial accident rate has been steadily decreased by making all efforts for the prevention of accidents after enacting Occupational Health and Safety Act in 1981. However, ordinary typed industrial accidents still occur in small and medium sized enterprises(SME). Timely Technical Guidance(TTG) project of Korea Occupational Safety & Heath Agency(KOSHA) for SME's was initiated to visit and provide the analysis and control of industrial accidents by the staffs of KOSHA as soon as possible after accidents occurred. This study is conducted to analyze the questionnaire survey for employers, workers and TTG personnel of KOSHA with being evaluated positively whether the demonstration project of TTG has been executed consistently. However, it is suggested that the understanding of TTG project and legal support are necessary for the establishments, and the development of a variety data and lots of available contents is necessary to increase satisfaction of the TTG project. The accident rate of SME's which are employed less than 50 workers is expected to be largely decreased with applying the control and improvement over this study with maintaining and developing TTG technology.

• 한국식품영양학회지
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• 제23권3호
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• pp.411-418
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• 2010

The objective of this study was to analyze the effects of non-offered meal on waste reduction in foodservice. To this end, the quantity of non-offered meal before and after Quality Improvement(QI) activity was analyzed, and employee satisfaction with foodservice was investigated. Statistical data analyses can be summarized as follows: The daily quantity of non-offered meal decreased significantly after QI(p<0.001)($27.80{\pm}3.14\;kg$ before QI and $7.22{\pm}4.17\;kg$ after QI). Among 7 items related to employee satisfaction, kindness of meal service staffs improved significantly after QI(p<0.05)($4.05{\pm}0.74$ before QI and $4.21{\pm}0.17$ after QI). No significant difference was found in the variety of menus, or cooking/seasoning of food, and there seemed to be greater satisfaction with taste of food after QI.

• 한국철도학회논문집
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• 제2권4호
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• pp.9-19
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• 1999

The use of compaction grouting evolved in 1950's to correct structural settlement of buildings. Over the almost 50 years, the technology has been developed and is currently used in wide range of applications. Compaction grouting, the injection of a very stiff, 'zero-slump' mortar grout under relatively high pressure, displaces and compacts soils. It can effectively repair natural or man-made soil strength deficiencies in variety of soil formations. Major applications of compaction grouting include densifying loose soils or fill voids caused by sinkholes, poorly compacted fills, broken utilities, improper dewatering, or soft ground tunneling excavation. Other applications include preventing liquefaction, re-leveling settled structures, and using compaction grout bulbs as structural elements of minipiles or underpinning. In this paper, on the basis of the case history constructed in this year, a study has been performed to analyze the basic mechanism of the compaction grouting. Also, the effectiveness of the ground improvement and the bearing capacity of the compaction pile has been verified by the Cone Penetration Test(CPT) and Load Test. Relatively uniform compaction grouting column could be maintained by planning the quality control in the course of grouting. And, the Qualify Control Plan has been conceived using grout pressure, volume of grout and drilling depth.

• Journal of Ginseng Research
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• 제42권4호
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• pp.549-561
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• 2018

Ginseng has been traditionally used for several millennia in Asian countries, including Korea, China, and Japan, not only as a nourishing and tonifying agent but also as a therapeutic agent for a variety of diseases. In recent years, the various effects of red ginseng including immunity improvement, fatigue relief, memory improvement, blood circulation improvement, antioxidation, mitigation of menopausal women's symptoms, and anticancer an effect have been reported in clinical as well as basic research. Around the world, there is a trend of the rising consumption of health functional foods on the level of disease prevention along with increased interest in maintaining health because of population aging and the awareness of lifestyle diseases and chronic diseases. Red ginseng occupies an important position as a health functional food. But till now, international ginseng monographs including those of the World Health Organization have been based on data on white ginseng and have mentioned red ginseng only partly. Therefore, the red ginseng monograph is needed for component of red ginseng, functionality certified as a health functional food in the Korea Food and Drug Administration, major efficacy, action mechanism, and safety. The present red ginseng monograph will contribute to providing accurate information on red ginseng to agencies, businesses, and consumers both in South Korea and abroad.

• 산업경영시스템학회지
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• 제32권2호
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• pp.132-139
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• 2009

Yield is a very important measure that can expresses simply for productivity and performance of company. So, yield is used widely in many industries nowadays. With the development of the information technology and online based real-time process monitoring technology, many industries operate the production lines that are developed into automation system. In these production lines, the product structures are very complexity and variety. So, there are many multi-variate processes that need to be monitored with many quality characteristics and associated process variables at the same time. These situations have made it possible to obtain super-large manufacturing process data sets. However, there are many difficulties with finding the cause of process variation or useful information in the high capacity database. In order to solve this problem, neural networks technique is a favorite technique that predicts the yield of process for process control. This paper uses a neural networks technique for improvement and maintenance of yield in manufacturing process. The purpose of this paper is to model the prediction of a sub process that has much effect to improve yields in total manufacturing process and the prediction of adjustment values of this sub process. These informations feedback into the process and the process is adjusted. Also, we show that the proposed model is useful to the manufacturing process through the case study.

• 한국농촌건축학회논문집
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• 제16권4호
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• pp.35-42
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• 2014

This study aimed to explore the methods to provide life service for hinterland villages, which is the biggest function of the seat of myeon in rural areas, and enhance central functions/roles. This study also aimed to provide basic information to establish a direction of the future projects of the seat of myeon through empirical study on the comprehensive improvement projects of the seats of eup and myeon and related demanders' perception for sustainable rural area. Based on the results, a variety of hardware manuals are correspondent with present rural situations in the comprehensive improvement projects of the seats of eup and myeon. Therefore, community-based welfare facilities should be expanded. Also, village infrastructure facilities and village landscape projects should be promoted to improve pedestrian environment. Finally, switching into an ecological environment project should be considered to improve village environment as well as supply energy saving facilities.

• 조명전기설비학회논문지
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• 제23권12호
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• pp.66-74
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• 2009

본 연구에서는 국내 이미 수립되어진 에너지사용계획서를 표본으로 삼아 각 분과별 및 전기 에너지 이용효율 향상 설비별로 전기에너지 절감효과를 조사 분석하였다. 에너지사용계획서 작성 시 본 연구를 바탕으로 문제점을 분석하고 개선 방안을 제시함으로써 새로이 효율 개선을 목표로 하고 있는 전기에너지 사용계획 수립에 도움이 되고자 한다. 특별히, 전기에너지 절감 기기 적용의 최근 현황과 문제점을 분석하고, 합리적인 에너지 사용과 목적에 부합한 분석 결과가 우리나라의 최근 에너지사용 계획서에 기여하고자 한다.

• 건축역사연구
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• 제30권4호
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• pp.91-102
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• 2021

This study is a case study of system improvement measures for urban regeneration of the historical and cultural environment. The example areas are Hwangnam and Inwang Hanok districts in Gyeongju City, which operate various systems to solve the urban decline problem caused by the historical and cultural environment regulations. The subjects of this study are resident support programs and district unit planning systems under the advanced promotion system established in the case area. As research methods, literature studies, field surveys, and in-depth interviews were conducted. Through this, the background and purpose of introduction of each system, major plan contents, and problems of the system application process were analyzed. This study drew the following implications through case studies. First, in order to more effectively promote the urban regeneration of the historical and cultural environment, it is necessary to improve the related systems in an integrated and systematic manner. Second, in order to resolve the policy distrust of local residents in the historical, cultural and environmental management system, a wider variety of planned alternatives to narrow the difference in interests between the public and private sectors should be presented.