• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권10호
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• pp.3642-3667
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• 2021

Texture synthesis technology has the advantages of repairing texture and structure at the same time. However, during the filling process, the size of the patch is fixed, and the content of the filling is not fully considered. In order to be able to adaptively change the patch size, we used the exemplar-based inpainting technique as the test algorithm, considering the image structure and texture, calculated the image structure patch size and texture patch size, and comprehensively determined the image patch size. This can adaptively change the patch size according to the filling content. In addition, we use multi-layer images to calculate the priority, so that the order of image repair was more stable. The proposed repair algorithm is compared with other image repair algorithms. The experimental results showed that the proposed adaptive image repair algorithm can better repair the texture and structure of the image, which proved the effectiveness of the proposed algorithm.

• Korea Journal of Cosmetic Science
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• 제1권1호
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• pp.19-29
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• 2019

In this work, we fabricated liquid crystal (LC) emulsions with fatty alcohol in order to stabilize high content ceramide in cosmetic formulation. We investigated the role of fatty alcohol and surfactant in the formation of higher order structure. As a result, we found that they play a crucial role to form higher order structure. SAXS study shows that ceramide can be incorporated up to 3% in cosmetic formulation with higher order structure and its stability was maintained up to 12 weeks at room temperature. According to WAXS study, the higher order structure can suppress the re-crystallization of ceramide in cosmetic formulation. Finally, we performed in vivo skin barrier recovery test for the damaged skin. LC emulsions with ceramide and O/W emulsions show significant effect in skin barrier recovery at D 1, D 2 and D 6 compared to the untreated condition. While only LC emulsions show significant skin recovery effect at D 14. We expect that LC emulsions are the promising skin carrier to stabilize ceramide and LC emulsions with ceramide can improve the skin barrier function.

• International Journal of Advanced Culture Technology
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• 제10권2호
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• pp.135-139
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• 2022

The purpose of this study is to explore the application structure of customized "lifelong education: (versus) higher education" for individuals with developmental disabilities in two types.As for the research method, expert consultation was composed secondary with literature analysis as the primary procedure.The contents of the study were presented by classifying the application structure of customized lifelong education versus higher education for individuals with developmental disabilities into two types. Accordingly, the first research content is a school type-centered structure, which can be understood as a type that focuses on higher education while linking aspects of lifelong education. And the second research content is a structure centered on the type of independent life of individuals with developmental disabilities, which can be understood as a type that focuses on lifelong education while linking with the aspects of higher education. As a result of the study, the aspect that the research contents considered above can be gradually realized through the currently established infrastructure at Daegu University in the current situation in Korea has been improved.

• Bulletin of the Korean Chemical Society
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• 제2권2호
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• pp.60-66
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• 1981

The hypothesis that three classes of water exist in hydrogels, namely X water (free water-like), Z-water (bound water-like), and Y water (interfacial water-like), has been verified and generally accepted. To further check the validity of this hypothesis and to study the nature of X, Y, and Z water as conformation changes, several experiments have been done using Tactic Poly(2-hydroxyethyl methacrylate) (P-HEMA) gels. Thermal expansively data for tactic P-HEMA gel was obtained. In each case of isotactic and syndiotactic P-HEMA, the higher water content gels showed an extremely sharp volume change at $0^{\circ}C$, indicating the presence of normal free water-like. Lower water content gels showed no anomalous change in thermal expansion, indicating that the water is bound water-like. The medium water content gels exhibited intermediate behavior. These results were also confirmed by bulk gel conductivity measurments. The differential scanning calorimeter(DSC) experiment was simply introduced to further verify the bound water-like quantities which was obtained by the method of dilatometry and specific conductivity. Observing the amounts of X, Y, and Z water with the change of tacticity, the similar content of bound water-like may be due to the same primary structure of isotactic and syndiotactic polymer and the difference in free and interfacial water-like content may be due to the difference in secondary and tertiary structure of tactic polymer. Therefore, as the polymer conformation varies, the free and interfacial water-like content will be varied. In order to demonstrate these concepts, Russel et al.'s CPK space-filling molecular models of isotactic and syndiotactic P-HEMA was utilized.

• Journal of Forest and Environmental Science
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• 제38권1호
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• pp.21-37
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• 2022

The present study was carried out to evaluate the chemical properties of soil in relation to forest structure and composition at different altitudes (900-2,600 m asl) in a part of Western Himalaya. The composite soil samples were taken from three (viz. upper, middle and lower) depths. The soils of the whole study area were acidic in nature (pH=4.90-5.51). Contents of Nitrogen (N), Phosphorus (P), Potassium (K), Carbon (C) and soil organic matter (SOM) showed much fluctuation during different seasons of year. Nitrogen content showed significant positive correlations with altitude (r=0.924, p<0.05) and different community parameters like species diversity (r=0.892, p<0.01) and species richness (r=0.941, p<0.05). Phosphorus exhibited direct correlations with carbon (r=0.637) while weak negative correlations with different community parameters like species richness & diversity, total basal cover (TBC), density and canopy cover. Carbon content and hence SOM showed direct correlations with Nitrogen (r=0.821, p<0.01); Phosphorus (r=0.637, ns) and Potassium (r=0.540, ns). But no significant relationship was observed between K content and species richness (p=0.30, r=-0.504); between K content and species diversity (p=0.14, r=-0.672); between P content and species diversity (p=0.29, r=-0.513) and species richness (p=0.23, r=-0.575). Among the different soil nutrients, only N showed a significant positive correlation with altitude while all others exhibited negative (but non-significant) correlation with it. The study revealed that the chemical properties affect and are reciprocally affected by forest structure and composition and that N rich soils of higher altitudes are best for the growth and development of forests.

• 한국전기전자재료학회:학술대회논문집
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• 한국전기전자재료학회 2003년도 하계학술대회 논문집 Vol.4 No.1
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• pp.585-588
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• 2003

Bi-2223 superconducting wires were fabricated by stacking, drawing process with different precursor powders and different heat-treatment histories. The precursor powders were 2 kinds of Pb content. And a part of the tapes were experienced pre-annealing process which caused tetragonal structure of Bi-2212 phase to orthorhombic structure of it was during drawing process. We confirmed the transformation of Bi-2212 phase from tetragonal structure to orthorhombic structure and reduction of second phases. AC magnetization analysis were performed in order to investigate the fraction of Bi-2223 phase in Bi-2223/Ag HTS tape. The cross sections of 55 filaments and 61 filaments were investigated after rolled in order to understand deformation mechanism of superconducting cores. We could achieve best Ic of 70 A class at the Bi-2223/Ag tape using low Pb content of precursor powder and experienced pre-annealing process. AC magnetization analysis was useful to investigate the fraction of Bi-2223 phase in the Bi-2223/Ag tape.

• 산업진흥연구
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• 제1권2호
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• pp.7-11
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• 2016

$SnO_2$ 박막의 결정성과 화학적인 결합구조의 변화가 전기적인 특성에 미치는 영향을 조사하였다. 증착한 $SnO_2$은 결정질 특성을 가지며 열처리온도가 증가함에 따라 비정질 특성으로 변하였으며, 산소공공의 함량변화는 열처리 온도가 증가할수록 증가하였다가 감소하였다. 산소공공이 증가하면 결정성이 증가하다가 산소공공이 감소하기 시작하면 비정질특성이 우세하게 나타났다. 이러한 결정성에서 비정질로 변화하는 특성의 차이는 PL 분석에 의한 광학적 특성에서 뚜렷하게 나타났으며, 100도와 150도 열처리를 한 박막에서 가장 큰 차이가 나는 것을 보여주었다. XRD 분석보다는 $SnO_2$ 결정구조의 변화에 대하여 광학적인 특성변화에서 더 뚜렷하게 나타난 이유는 케리어의 이온화에 의한 광학적 여기량이 150도 열처리에서 크게 증가하였기 때문이며, 더 높은 온도에서는 광학적 여기량이 감소한 이유는 산소공공에 의한 케리어가 많지 않았기 때문으로 확인할 수 있다.

• 컴퓨터교육학회논문지
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• 제13권3호
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• pp.25-34
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• 2010

본 연구는 2007년 개정 교육과정에 의해 개발된 중학교 정보 교과서를 비교 분석하고, 이를 토대로 교과서 개선 방안을 제시하였다. 교과서는 체제와 내용의 두 가지 준거를 고려하여 분석되었으며, 수집된 자료의 분석은 내용 분석법(content analysis)을 사용하였다. 분석 결과, 교과서 체제는 전체 구성, 영역별 비중, 내용 전개 구조, 평가 유형에서 차이를 보였으며, 교과서 내용은 각 교과서가 다루는 개념, 프로그래밍 언어의 종류에서 차이를 보였다. 교과서 비교 분석의 결과를 토대로 여섯 가지의 정보 교과서 개선 방안을 제시하였으며, 이는 향후 정보 교과서 개발 시에 도움이 될 것으로 기대된다.

• 한국컴퓨터정보학회논문지
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• 제27권11호
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• pp.99-106
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• 2022

본 논문은 클라우딩 컴퓨팅 환경에서 디지털 콘텐츠 관리 기술을 제안한다. 네트워크를 활용한 컴퓨팅 서비스는 4차 산업혁명 시대에 빠질 수 없는 기본 인프라 서비스이다. 스마트폰을 활용한 금융 서비스, 디지털 콘텐츠 서비스, 산업 및 홈 네트워크 서비스는 국부적인 영역의 서비스에서 전체 서비스가 가능한 클라우드 서비스 환경으로 변화하고 있다. 이에 본 연구에서는 클라우드 컴퓨팅 환경에 적합한 디지털 콘텐츠 서비스가 안전하게 지원되도록 시스템을 제안하였다. 제안 시스템은 사용자의 시스템 접근의 편의성과 안전성을 제공하고, 디지털 콘텐츠 저작자의 저작권을 보호하며, 안전한 디지털 콘텐츠 유통 및 관리 시스템을 제공한다. 본 연구의 목적은 클라우드 컴퓨팅 환경에 적합한 디지털 콘텐츠 유통구조를 제공하여 디지털 콘텐츠 시장을 안정화시키고 활성화하는데 있다.

• 한국정보처리학회논문지
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• 제6권2호
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• pp.292-298
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• 1999

An information structure of large size hypermedia application is usually hierarchical, and the sibling nodes in this structure have same or similar tags and contents. a word "개그" that means the common set of sibling nodes in the hierarchical information structure is used in this paper. It proposes a design method that divides form and content from nodes and it proposes HTML page generation algorithm from forms and contents. This method has reusability of form, maintainability of documents and reduction of cost for authoring.