• Journal of Life Science
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• v.8 no.5
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• pp.504-508
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• 1998

A study was conducted to evaluate a protein removal characteristics by foam separation. The foam separator was operated in well-mixed tank which would be considered as a completely mixed condition. The feasibility of foam separation to remove protein from fresh and sea water was investigated. Protein removal characteristics of the foam separator were obtained by batch reactor operations. To find the effect of the operating parameter to protein removal rate, the foam separation was carried with variation of initial protein concentration and foam height. The results indicated that the protein removal efficiency was increased with increasing protein concentration and decreased with increasing foam height. The relationship between protein concentration and protein removal rate was evaluated by linear regression.

• Monthly Korean Chicken
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• v.19 no.8
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• pp.58-73
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• 2013

일반 소비자들은 닭고기 구매 시 가격보다는 제품의 품질과 신뢰도를 높이 평가하고 있는 것으로 나타났다. 본회는 지난 3월 25일부터 4월 5일까지 서울 및 수도권, 대구, 부산지역의 만 20세 이상의 성인 여성 600명을 대상으로 한 '닭고기 소비 행태에 대한조사 연구' 결과 이같이 나타났다고 발표했다. 본고는 소비자의 닭고기 원산지 이용 실태 조사 연구 결과에 대한자료를 일부 발췌, 게재한 것이다.

• Journal of The Korean Society of Grassland and Forage Science
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• v.12 no.1
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• pp.41-48
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• 1992

This experiment was carrid out to determine the effect of cutting height and nitrogen level on dead stubble, tiller and branch new shoot dry matter yield and total dry matter of sorghum-sudangrass hybrid{Sorghum bicolor (L.) Moench}.The main treatment was four cutting height(5cm, IOcm, 15cm, 20cm), and the sub treatment was three nitrogen level(l50kg, 250kg, 350kglha).The experiment was performed at the Collage of Natural Science of Kon-Kuk University at Chungju in 1988. 1. Plant length tends to increase in the high cutting height and high N level. Especially, the difference of plant height was significant in warm season. 2. The number of dead stubble after cutting was significantly(P

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.01a
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• pp.267-268
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• 2019

본 연구에서는 신체밀착형 의복의 유행으로 맞음새가 우수한 의복의 중요성이 부각되고 있는 20대 나성을 대상으로, Size Korea의 제 7차 인체치수조사 계측데이터를 분석하여 전신 체형의 특성을 알아보고, 전신 체형을 유형화하고자 하였다. 이를 통해 20대 전반 남성의 의복 제작에 필요한 기초자료를 제공하고자 하였다. 20대 남성의 체형은 4개로 분류되었다. 유형 1은 둘레 및 너비요인의 적재량이 높고, 몸통길이와 발목/종아리 굵기, 엉덩이처짐 요인 높이 요인의 적재량이 낮은 '짧고 굵은 몸통새다리 체형'이다. 유형 2는 어깨너비와 길이, 몸통길이의 적재량이 높고, 둘레 및 너비와 어깨처짐 요인의 적재량이 낮으며, 높이요인의 적재량이 높은 '가는 역삼각형 체형'이다. 유형 3은 발목/종아리 굵기 요인의 적재량이 높고, 높이요인, 둘레 및 너비와 몸통길이 요인의 적재량이 낮은 '짧고 가는 몸통 굵은 다리 체형'이다. 유형 4는 높이요인과 엉덩이처짐, 어깨처짐 요인의 적재량이 높고 어깨너비와 길이 요인의 적재량이 낮은 '긴 삼각형 체형'이다.

• Proceedings of the Acoustical Society of Korea Conference
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• spring
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• pp.501-504
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• 2002

본 논문에서는 최근 건축공간에 있어서 음환경에 대한 관심이 놓아지면서 학교 건축물에 있어서 강의실내의 음환경을 측정하고, 학교건축물에 대한 음환경 기준을 확립하는 데에 기초자료와 필요한 제안을 하는 것이 목적이다. 현재 음환경 기준은 단순히 소음fp밸이나 잔향 시간과 같은 단순한 물리특성만을 기준으로 하고 있다. 여기서는 강의실 내의 잔향시간, D, STI 등외 물리지표와 설문조사 등 주관적 평가를 통해 새로운 음환경 기준을 제시하려고 한다. 여기서 사용되는 물리지표로는 TSP(Time-Streched-Pulse)신호를 사용하여 잔향시간과 D(Deutlichkeit), STI(Speech Transmission index)를 산출하였다. 강의실의 화자의 위치에서 1.5m 높이에 스피커를 놓고 청취자의 위치인 여섯 점에서 무지향성 마이크로폰을 1.2m 높이에 놓고 마이크로폰으로 들어온 임펄스 응답을 측정하고, 강의실 내의 잔향시간과 D, STI를 산출하였다. 다음에 설문조사를 실시하여, 앞에서 측정한 물리지표와 설문조사를 통해 얻은 주관적 평가와의 상관관계를 파악하였다.

• Journal of the Korean Society of Hazard Mitigation
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• v.7 no.4
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• pp.97-105
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• 2007

This study has been focus to certify the run-up heights, losses of human lives and property damages due to the 1983 Central East Sea tsunami. We have conducted the interview with indigenous inhabitant and field surveying at the Imwon port, East sea in Korea in order to inquire into the state of things occurred during that period. It is also investigated how much well they are aware of the emergency action plan including the evacuation system. Base on the reliable interviews, we selected and surveyed 10 places at the Imwon port, where the historical maximum overflowing occurred due to the 1983 Central East Sea tsunami. The measured run-up heights are approximately $3.3m{\sim}4.0m$ at the selected 10 places and it is found that the sea water ran over the banks in Imwon stream about 700m upstream from the Imwon port. From this study we can suggest supplementing the present emergency action plan and supply the state-of-the-art inundation map.

• Korean Journal of Environment and Ecology
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• v.11 no.1
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• pp.137-148
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• 1997

This study was conducted to select appropriate woody species and to propose appropriate woody species and to propose appropriate mounding hight through analysis of soil characteristics, planting state, draining state, growth amount and injured index of woody species. Soil acidity was pH 5.9~7.4, as alkaline soil. The state of draining was proved to be inappropriate for the growth of woody species because of bad draining state. Injured index of woody species were Prunus serrulata var, spontanea in deciduous tree because of polluted water leaked from sanitary landfill and density of planting tree. Appropriate mounding heignt of the planted area which was itensive injured wood species was not less than 80cm. Appropreate woody species in wanggyoi-dong apartment complex were Zelkova serrata, Acer trifloum, Acer buergerianum, Sophora japonica, Ailanthus altissima and appropriate mounding height was not less than 50~60cm.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.17 no.4
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• pp.76-85
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• 2018

This study aims to analyze citizen's preference of rail station lifts(stairs & Escalation) and estimate the user benefit of Escalation, Also it includes how high is the height of the entrance ramp when citizens want to set up an escalator. 89 percent of subway users prefer escalators and said escalators are needed for stairs higher than the double-deck stairs. Especially It is higher for the age older than 30 and woman. Therefore, personnel characteristics and facility characteristics should be considered in relation to escalator installation. Based on the multiple logistic model, WTP(Willing to pay) was estimated at 34.37 won in a survey conducted to estimate practical user benefit(physical side) of escalator.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2009.04a
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• pp.271-272
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• 2009

우리나라의 농업통계조사방법은 과거의 조사방법을 그대로 사용하고 있어 비표본오차발생 가능성이 높은 상황이다. 따라서 작물재배면적의 통계조사에 위성영상을 활용함으로써 조사 및 통계자료의 제공에 효율성 및 정확성을 높이는 것이 필요하다. 이를 위해서 UN, 미국, 캐나다, 유럽 등을 중심으로 위성영상을 사용한 경지면적조사, 재배면적조사, 작황예측분석 등 농업통계의 생산 사례를 살펴보았다. 이후 국내 활용동향을 분석하여 원격탐사기법을 활용한 작물재배면적 파악의 개선전략을 제시하였다.

• Science of Emotion and Sensibility
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• v.23 no.1
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• pp.17-28
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• 2020

Lowering observers' view-height may increase the amount of occlusion across objects in a visual scene and prevent the accurate identification of the objects in the scene. Based on this possibility, memory stimuli in relation to their expected views from different heights were displayed in this study. Thereafter, visual short-term memory (VSTM) performance for the stimuli was measured. In Experiment 1, the memory stimuli were presented on a grid-background drawn according to linear perspectives, which varied across observers' three different view-heights (high, middle, and low). This allowed the participants to remember both the color and position of each memory stimulus. The results revealed that testing participants' VSTM performance for the stimuli under a different memory load of two set-sizes (3 vs. 6) demonstrated an evident drop of performance in the lowest view-height condition. In Experiment 2, the performance for six stimuli with or without the grid-background was tested. A similar pattern of performance drop in the lowest condition as in Experiment 1 was found. These results indicated that different view-heights of an observer can change the amount of occlusion across objects in the visual field, and the sensory interference driven by the occlusion may further influence VSTM performance for those objects.