• Applied Biological Chemistry
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• v.29 no.4
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• pp.346-351
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• 1986

This study was carried out to investigate the changes in bound, free, and neutral lipid components of malt during malting, two-rowed barley. During malting, the temperature and relative humidity were $17^{\circ}C$ and 80%, respectively. The content of free lipids in both two-rowed barley and their malt was much higher than that of bound lipids. Decrease in the content of free lipids during malting was more prominent than that of bound lipids. The content of neutral lipids was 21.0mg/g-d. w. out of 27.9mg/g-d. w. of total lipids extracted from two-rowed barley. The content of neutral lipids decreased during malting. Triglyceride, free fatty acid and sterol ester were the principal components of neutral lipids. The content of triglyceride decreased during malting, but the content of free fatty acid and sterol ester increased. Linoleic, palmitic, oleic and linolenic acid were the principal fatty acid of free and bound lipids. The content of palmitic acid in free lipids increased during malting, but that of bound lipids decreased. The content of oleic acid in free lipids decreased. The principal fatty acids of neutral lipids were similar to those of free lipids. The content of palmitic acid increased during malting, but that of linoleic and stearic acid decreased.

• Journal of Wetlands Research
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• v.16 no.2
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• pp.173-185
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• 2014

Climate change has caused detrimental phenomena such as heavy rainfall which could aggravate soil erosion. Accordingly, it is needed to evaluate the groundwater recharge, baseflow, and soil erosion for the efficient management of water resources and quality. In this study, future climate change scenarios were applied to the H aean-myeon watershed which is a steep sloping watershed in South Korea to analyze groundwater recharge, baseflow, sediment. Also, the variation of groundwater recharge, baseflow, sediment was analyzed according to the change of slope (5 %). Simulated periods were divided into three terms (2013 ~ 2040 years, 2041 ~ 2070 years, 2071 ~ 2100 years). As a result of this study, average groundwater recharge and baseflow increased by 50 %, 42 %, and sediment decreased by 72 %, respectively. In these regards, the suggested method will positively contribute to hydro-ecosystem and reduction of muddy water at a steep sloping watershed.

• Journal of the Korean Regional Science Association
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• v.32 no.3
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• pp.17-27
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• 2016

In order to solve the problem of how to estimate the residential segregation, the Spatial Concentration Index(SCI) and Location quotient(LQ) are able to be one of alternative methods, and a comprehensive analysis of the residential segregation phenomenon in the seoul metropolitan area is the aim of the study. The results of SCI show that residential concentration areas in low-rent are some Gyeonggi-do's downtown(Bucheon-si, Suwon-si) as well as rural and urban-rural complex outskirts of the metropolitan area. The results of changing of SCI from 2011 to 2014, downward changes appeared thirteen districts and upward changes appeared fourteen districts. Especially downward change district was Sosa-gu, Bucheon-si and upward change district was Yeongtong-gu, Suwon-si. In conclusion, that high rent level groups are more concentration on specific area than low rent level groups. By decreasing residential concentration districts in low-rent level group, 'diversity' districts have been increasing in seoul metropolitan but the phenomenon of residential concentration in high and low level group have been being intensified. These results could be confirmed by quantitative through LQ. Methodologically LQ would strengthen the explanatory power of SCI, and ongoing research of SCI in conjunction with other quantitative methods will need.

• The Journal of the Korea Contents Association
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• v.19 no.4
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• pp.359-367
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• 2019

For this study, specimens were prepared using five types of composite resin and resin-reinforced glass ionomer Fuji II LC, and 29 days precipitation was done in four kinds of solution, which were soy sauce, gochujang, wine, and distilled water. Ten specimens for each coloring sample were divided into two groups, one those surfaces was polyester film and the other with 1200-grit abrasive paper, and 20 specimens per materials. Color change (${\Delta}{\ast}ab$) in the colored specimens is measured in 2days, 7days, 14days and 29days using spectrophotometer (CM-2600d, Konica, Minolta, Ramsey, NJ). All values were considered significant when P<0.05. 1. Each material is discolored over time under the influence of different storage solutions. 2. In soy source, among the specimens polished with polyester film, color change was observed in resin-modified glass ionomer Fuji II LC, prodigy and compomer F-2000 on day 2. Meanwhile, Fuji II LC showed noticeable color change in specimens prepared with 1200-grit sandpaper on day 2, which was followed by flowable resin on day 7. 3. On day 2, there was a color change with the specimens of flowable resin, resin-modified glass ionomer Fuji II LC and Prodigy among the hybrid specimen in the groups of polyester film in gochujang.

• Korean Journal of Environmental Biology
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• v.36 no.4
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• pp.680-686
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• 2018

Nitrogen fertilizers, hairy vetch, and slow-release complex fertilizers were applied to the soil during the cultivation of crops. The impact of these factors on $N_2O$ emission was quantitatively assessed and the GHGs reduction effect comprehensively evaluated. Among the three factors, the significant factors affecting $N_2O$ emission were mineral nitrogen>soil moisture>temperature. Yield and fertilizer utilization efficiency were highest in the slow-release complex fertilizer treatment. There was no significant difference in $N_2O$ emissions between the slow-release complex fertilizer treatments and the NPK+hairy vetch treatments. Comprehensive results showed that slow-release complex fertilizers treatment has high yield and fertilizer utilization efficiency but low $N_2O$ emission.

• Korean Journal of Agricultural and Forest Meteorology
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• v.22 no.4
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• pp.250-257
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• 2020

It is difficult for farmers to select new crops for cultivation to increase income. So we conducted land suitability assessment of grapes with soil and climate information related to crop growth. At first, land suitabilities for grapes were classified into three categories (most suitable, suitable, low productive & not suitable areas) according to soil and climate conditions, respectively. In details, land suitability with respect to soil was assessed by soil morphological and physical properties including soil texture, drainage class, available soil depth, slope and gravel content, whereas one in accordance with climate was evaluated by average annual temperature, temperature during the growing season, temperature during maturation, the lowest temperature, chilling requirement and precipitation during the growing season. Secondly, we combined both soil and climate classification results using a most-limiting characteristic method. Maps showing the suitable land for grapes cultivation were drawn. The results indicate that the most suitable area of cultivation for grapes in south Korea was 3.43% and suitable (possible) area was 10.61%. This study may help to preserve land and increase the productivity through providing valuable information regarding where more suitable areas for grapes are located.

• The Journal of the Korea institute of electronic communication sciences
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• v.6 no.2
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• pp.225-230
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• 2011

This paper depict the system which reacts staly towards light changes, when object is detected using retinex. Previous interaction system does not react to transient light conditions. Since non-lighting condition was constructed in the limited space. However, if interaction contents work in the inside where the light changes, the light input is changed as the time goes by when the system detect objects with super sensitive camera few lighting transients makes system trouble. Thus, lighting is one of the most significant factors of the system.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.34 no.11B
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• pp.1320-1327
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• 2009

In stereoscopy using stereo camera system, the representative factors inducing stereoscopic depth distortions have been reported such as the inter camera distance, the convergence angle and the depth resolution. The image distance is just known to us as a factor related in optical system. In a point of view of depth distortion, it will be a factor inducing a stereoscopic depth distortion. In this paper, we focused on the proof of our opinion that the image distance is one of the weighted factors inducing depth distortion under orthostereoscopic condition.

• Journal of the Korea Society of Computer and Information
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• v.13 no.1
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• pp.37-44
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• 2008

Data stream has the tendency to change in Patterns over time. Also known as concept drift, such problem can reduce the predictive performance of a classification model CVFDT and IOLIN tried to solve the problem of a concept drift through incremental classification model updates. The local changes in patterns. however was revealed to be unable to resolve the problems of local concept drift that occurs by influencing on total classification results. In this paper, we propose adapted IOLIN system that improves system's predictive performance by detecting the local concept drift. The experimental result shows that adaptive IOLIN, the Proposed method, is about 2.8% in accuracy better than IOLIN and about 11.2% in accuracy better than CVFDT.

• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.750-750
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• 2012

토지이용의 변화는 수문순환의 변화를 초래한다. 이는 토지이용에 따른 지표 특성의 변화로 열수지가 변화함으로써 미규모 및 중규모 기상현상에 직접적으로 영향을 미치기 때문이다. 최근 4대강 살리기 사업 등의 대규모 토목사업으로 인해 넓은 면적의 지표면 상태가 변화하고 이에 따른 수문순환 변화에 대한 관심과 함께 연구가 진행되고 있다. 또한 최근 수문학 분야에서의 가장 큰 관심은 최신 기법을 적용한 수문분석 및 정확한 수문인자를 추출하고자 하는 것으로 원격탐사나 GIS 기법을 이용할 경우 유역의 물리적인 요소를 고려할 수 있으며 넓은 지역에 대한 정보를 공간적으로 분석할 수 있는 장점이 있다. 본 연구에서는 길이 103.5km, 유역면적 $1,478km^2$, 한강의 제 1지류인 섬강유역을 대상으로 위성 영상을 이용하여 토지피복에 따른 열수지 변화 특성을 모니터링 하였다. 대상지역의 토지피복은 Landsat TM 위성영상을 이용하여 수역, 도심지, 나지, 초지, 산림, 농경지, 구름 및 그림자 등으로 분류하였으며, 위성영상을 열수지 모델에 적용하여 인자별 격자기반의 공간분포도를 추출하였다. 또한 이를 이용하여 토지피복 종류에 따른 유역내 열환경 특성을 정량적으로 파악하고 열환경 관점에서 유리한 토지피복 조성을 도출하고자 한다.