• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2003년도 추계종합학술대회
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• pp.109-112
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• 2003

인터넷 사용중 인쇄를 하였을 때 만족스러운 결과를 가지지 못하는 것은 스크린 상의 page와 인쇄물의 page들이 다르게 나타나기 때문이다. HTML과 CSS는 브라우저 기반의 정보를 표현하는데 있어 적합하고 충분하지만, 인쇄기 반의 정보를 표현하는데는 부족하다. 그래서 사용되는 것이 XSL-FO(XSL Formatting Object) 이다. 고품질의 출력과 출력장치에 무관한 인쇄에 있어서 PostScript가 사용되고 있다. 본 논문에서는 XML-FA 와 Postscript의 장점을 이용해 사용자가 원하는 결과물을 갖는 것과, XML문서의 XML-FA 와 Postscript의 Segment간의 대응 관계를 분석하고 매핑시킴으로써 Postscript로 변환의 기술을 연구하였다. 변환 결과로 기존 인쇄물 보다 더 나은 결과물을 얻을 수 있었다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 추계학술대회
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• pp.458-459
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• 2012

현재 스마트폰의 발전에 힘입어 고품질의 컨텐츠가 많이 개발되고 있고, 과거 피쳐폰에서는 제작이 매우 힘들었던 3D 게임이 현재 스마트 폰에서는 보편적으로 사용되며 사용자들의 기대를 만족시켜주고 있다. 본 논문에서는 스마트폰 게임의 특성에 맞게 저수준 개발 도구보다 상대적으로 개발 시간 대비 고품질의 게임을 개발할 수 있는 게임 엔진을 이용하여 제작한다. 게임엔진에서 제공하는 고품질 셰이딩 처리, 최적화 기능 등을 사용한 게임 설계 및 개발 방법 설명한다.

• 펄프종이기술
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• 제44권1호
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• pp.37-42
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• 2012

This study was carried in order to manufacture the high quality coated paper. High quality includes not only physical and optical properties of coated paper but also final print quality. In this study, new acrylic-styrene emulsion was polymerized in laboratory and compared with conventional styrene-butadiene latex. Low-shear viscosity of coating color was decreased with increasing acrylic-emulsion dosage. Small amount of acrylic emulsion addition increased water retention, but further addition decreased it. Acrylic-emulsion addition improved paper gloss, brightness and whiteness, but decreased PPS and opacity slightly. Ink gloss was increased with using No. 3 acrylic-emulsion due to lower ink setting properties. However No. 1 and 2 emulsion showed the opposite result. Surface strength of coated paper was increased with using No. 3 acrylic-emulsion. These results indicate that high quality coated paper can be manufactured with using No. 3 acrylic-emulsion.

• 한국식생활문화학회지
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• 제28권1호
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• pp.107-113
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• 2013

Yacon (Smallanthussonchifolius) is a root crop that contains high amounts of fructo-oligosaccharides (FOS). FOS has a sweet taste, is low in calories, and is known to promote intestinal tract health. In this study, various yacon concentrates were substituted for sugar in white pan bread to obtain healthy benefits from the use of FOS. The quality characteristic changes during storage of the white pan breadswith 0, 25, 50, 75 and 100% of added yacon concentrates instead of sugar were investigated. During storage, the water contents and water activities of the breads made with high amounts of yacon concentrates changed less than in those made with only sugar. The hardness and chewiness of the breads made with high amounts of yacon concentrates had lower values than those made with only sugar. Thus, bread made with yacon concentrates might exhibit increased moisture retention and decreased aging velocity. The substitution of yacon concentrates for sugar in pan bread improved the bread quality.

• Food Science and Biotechnology
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• 제14권5호
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• pp.667-671
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• 2005

The aim of this study is to investigate the effects of the muscle mass and fiber number on post-mortem metabolic rates and pork quality. Carcass traits, muscle fiber characteristics, and type of fiber composition were evaluated using a sample of 200 cross-bred pigs. The muscle mass was divided into two groups according to carcass weight and loin-eye area measurements (heavy or light). In addition, the muscle histological characteristics were divided into two groups according to the muscle fiber density and total number of muscle fibers (high or low). All the carcass traits were significantly different in the muscle mass groups. Increasing weight significantly affected the cross-sectional area (CSA) of all fibers. The low group, which had a low muscle fiber number indicating a larger CSA of fibers, and especially the heavy-low group had the highest CSA levels of fibers. The fiber number percentage and the area percentage were significantly different in the groups categorized by fiber number. The heavy-high group indicated a normal rate of pH decline and the R-value. In addition, pigs with a heavy muscle mass and high muscle fiber number indicated normal drip loss, lightness, and protein denaturation. The present results suggest that increasing the total muscle fiber number has a beneficial effect on increasing the muscle mass without deteriorating the meat quality.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권4호
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• pp.1877-1891
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• 2016

In video coding, the goal of rate control (RC) is not only to avoid the undesirable fluctuation in bit allocation, but also to provide a good visual perception. In this paper, a novel frame-level rate control algorithm for High Efficiency Video Coding (HEVC) is proposed. Firstly a model that reveals the relationship between bit per pixel (bpp), the bitrate of the intra frame and the bitrate of the subsequent inter frames in a group of pictures (GOP) is established, based on which the target bitrate of the first intra frame is well estimated. Then a novel frame-level bit allocation algorithm is developed, which provides a robust bit balancing scheme between the intra frame and the inter frames in a GOP to achieve the visual quality smoothness throughout the whole sequence. Our experimental results show that when compared to the RC scheme for HEVC encoder HM-16.0, the proposed algorithm can produce reconstructed frames with more consistent objective video quality. In addition, the objective visual quality of the reconstructed frames can be improved with less bitrate.

• 생태와환경
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• 제43권2호
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• pp.199-211
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• 2010

The objectives for this study were to evaluate spatial and temporal characteristics of water quality, based on long-term water quality monitoring data during 1993~2008. We found that physico-chemical and ecological conditions in the Daecheong Reservoir (DR) were modified by the construction of upper dam (i.e., Yongdam Reservoir). total phosphorus (TP), Secchi depth (SD), and chlorophyll-a (CHL) in the DR showed significant longitudinal decreases along the headwater-to-the downlake, indicating a large spatial variation, and this gradient was more intensified during the high-flow season (monsoon). Nutrient-rich water containing high nitrogen and phosphorus in the monsoon season (July~August) passed through the reservoir as a density current in the metalimnetic depth, and also high suspended solids increased in the metalimnetic depth, especially during the monsoon. According to the deviation analysis of Trophic State Index (TSI), >50% of TSI (CHL)-TSI (SD) and TSI (CHL)-TSI (TP) values were negatives, so that inorganic suspended solids (non-votatile solids) influenced the underwater light regime against phytoplankton growth. Also, ratios of CHL:TP after the dam construction evidently increased, compared to the values before the upper dam constructions, indicating a greater yield of phytoplankton in the unit phosphorus. Overall data showed that ecological and functional changes in Daecheong Reservoir occurred after the construction of upper dam (Yongdam Reservoir).

• 지역사회간호학회지
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• 제24권3호
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• pp.323-331
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• 2013

Purpose: The study attempted to examine whether the group art therapy using a collage medium and reminiscence therapy prevented or reversed dementia, prevented depression, and improved the quality of life of elderly women at high risk for dementia in community public health centers. Methods: As a quasi-experimental study with a non-equivalent control group, this study used a pre-post design. The subjects consisted of a random sample of women over 65 years of age who had been registered as being at high-risk for dementia at the Public Health Center of the G City, and the Dementia Support Center. Of these elders, 30 were assigned to the experimental group and 33 to the control group. The intervention was conducted twice a week for 5 weeks. $x^2$-test, t-test, Wilcoxon test were used to analyze the data. Results: After the program, cognitive function, depression, and quality of life were significantly better in the experimental group than in the control group. Conclusion: The group art therapy can be utilized in community-based nursing practices by identifying and registering those who are at high risk for dementia. The results should prove useful when designing future intervention strategies targeting elderly individuals residing in communities.

• 한국정보통신학회논문지
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• 제18권7호
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• pp.1681-1685
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• 2014

의료영상의 화질이 진단의 정확성에 중요한 요소이다. 그러므로 의료영상의 화질을 향상시킬 수 있는 방법들이 연구되어져 왔다. 그 중에서 주파수 도메인 필터가 영상의 화질을 향상시킬 수 있는 강력한 도구이다. 본 논문에서는 X선 의료영상에 기존의 고주파통과 필터에 최적값을 적용해서 에지영역을 개선하였고, 결과영상에 기존의 고주파 강조 필터에 최적값을 사용하여 에지영역 및 평탄영역의 대비를 향상시켰다. 마지막으로, 최소평균제곱오차필터를 사용해서 결과영상에 잡음을 최소화했다. 결과적으로, 제안된 방법이 기존 필터들에 비해서 영상의 대비와 에지부분들을 향상시켰으며, 더불어 잡음제거의 효과를 보였다.

• 한국환경과학회지
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• 제11권7호
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• pp.721-727
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• 2002

The characteristics of drinking groundwater quality at Chung Cheong Nam Do was analyzed by investigating the 3,086 groundwater data which were carried out the water quality inspection from Jan. 1998 to Dec. 1998. It was found that all the mean concentration of items was not over the drinking water quality standard except Zn at Yeongee area. The highest mean concentration of nitrate was $8.2 mg/{\ell}$ at Hongsung area. And the mean concentrations of nitrate and ammonium at Sucheon, Yesan, Yeongee were relatively higher. It was considered that the groundwater of that area was contaminated by breeding livestock as farm pollutants. The mean concentrations of chloride, hardness and evaporation residual at coastal regions were higher than inland regions. Especially the mean concentration of chloride was 2.5 times higher. It was considered that the groundwater at coastal regions was affected by seawater. It was found that the correlation between Fe and Mn was relatively high(r=0.776) and the correlation between hardness and evaporation residual was very high(r=0.983). The rainfall series and detection rate of E-coli had the hydrologic persistence. The correlation between the detection rate and rainfall series over 150 mm was very high (r=0.9146). Therefore it is surely required to control the groundwater sanitation in the rainy season.