• 방사선산업학회지
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• 제5권3호
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• pp.211-220
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• 2011

This study was carried out to develop salt tolerant varities of rapeseed (Brassica napus L.) which can be grown in the high salty reclaimed land. The seeds of three varieties 'Naehan', 'Tammi', and 'Halla' were treated by proton ion beams and gamma rays with 0 to 2,000 Gy. For the selection of salt tolerant lines, emergence and survival rate, and growth characteristics of $M_2$ to $M_4$ generations were investigated in the Saemangeum reclaimed fields with the different salt concentrations. The lines with potential salt tolerance were selected in the $M_4$ generation and tested indoor for their growth characteristics. There was no significant changes in the soil pH for $M_4$ generation during growth period. However, soil EC was higher in early spring than sowing period (mid October). In $M_4$ generation test, the seeds of original and selected line showed high rates of emergence and survival, as determined one month after sowing. After wintering, however, the original varieties showed the significant reduction in the survival rate, while the selected lines showed a higher survival rate and good growth, leading to the completion of their life cycle. Consequently we selected 9 lines from $M_4$ generation with better performance in growth and yield. Soil EC was $2.8{\sim}4.3dS{\cdot}m^{-1}$ during $M_4$ generation growth period. The laboratory test of the lines selected from $M_4$ generation was made for their salt tolerance potential. The selected lines showed higher chlorophyll and proline contents than the original varieties. There was also no significant difference in the emergence rate of seed between the original and selected varieties. In 200 mM natural sea salt, the $N{\gamma}600-21-1-641$ line derived from 'Naehan' was the highest in growth rate, leaf chlorophyll and proline contents. $T{\gamma}800-20-2-461$ line derived from 'Tammi' didn't show significant difference in growth rate compared to original variety in 200 mM and withered in 250 mM like other lines as time passed. $H{\gamma}200-7-1-740$ line showed similar growth and chlorophyll content compared to its original variety.

• 한국식품과학회지
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• 제25권2호
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• pp.160-164
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• 1993

The antioxidant activity of ethanol extracts from defatted perilla flour was investigated by measuring peroxide value of perilla oil during storage at $45^{\circ}C$. The antioxidant activity of ethanol extracts was also compared with BHA, BHT and tocopherol. Anti-oxidant activity of ethanol extracts was also examined in corn oil and lard. The ethanol extracts contents of defatted perilla flour and the original perilla seed were 7.69 and 4.56% respectively. The antioxidant activity of ethanol extracts was superior to that of 0.02% BHT, BHA and tocopherol in the perilla oil substrate, merely in concentration of one-twentieth as much as that contained in original perilla oil seeds. The fractions of non-polar solvent (hexane and chloroform) obtained from silicic acid column chromatography are less effective than that of polar solvent as an antioxidant. Antioxidant activity of partially purified ethanol fraction is slightly inferior to that of original crude ethanol extracts. Ethanol extracts were also effective in corn oil and lard almost same as in perilla oil. The total phenolic compound contents of crude ethanol extracts and partially purified ethanol fraction were 9.3, 6.4%, respectively.

• 한국콘텐츠학회논문지
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• 제5권2호
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• pp.87-94
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• 2005

본 논문에서는 원영상의 에너지 크기에 기반하여 워터마크를 생성하고, 이를 치환을 통해 영상 내에 삽입하는 새로운 워터마킹 알고리즘을 제안한다. 원영상의 에너지와 일정 비율이 되는 에너지를 갖도록 생성된 워터마크는 영상에 삽입된 후에도 영상의 에너지를 유지시켜 주어 워터마킹된 영상의 품질 훼손을 줄 일 뿐만 아니라, 큰 에너지를 갖고 삽입되기에 공격에 대한 견고성도 강화시켜 준다. 실험 결과를 통해 제안한 알고리즘이 평균 PSNR 47.6dB의 우수한 비가시성을 가지며, 다양한 공격이 가해진 후에도 평균 98.9%의 메시지를 복원해 내는 우수한 견고성을 가짐을 확인할 수 있다.

• 한국의사학회지
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• 제33권2호
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• pp.89-104
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• 2020

The purpose of this research is to build a database structure that can be useful for evidence-based medical practices by constructing the knowledge related to oriental medicine in the classical literature knowledge in a form that can utilize new forms of information technology. As a method, "database" is used as a keyword to search published studies in the field of oriental medicine, research is conducted on classic literature knowledge, and studies describing the contents of the data structure are found and analyzed. In conclusion, the original text DB for the preservation of the original texts and the presentation of the supporting texts should include 'Contents Text', 'Tree Structure', 'Herbal Structure', 'Medicine Manufacture', and 'Disease Structure' tables. In order to search, calculate, and automatically extract expressions written in the original text of the old literature, the tool DB should include 'Unit List', 'Capacity Notation List', 'CUI', 'LUI', and 'SUI' tables. In addition, In order to manage integrated knowledge such as herbal, medicine, acupuncture, disease, and literature, and to implement a search function such as comparison of similarity of control composition, the knowledge DB must contain 'dose-controlled medicine name', 'dose-controlled medicine composition', 'relational knowledge', 'knowledge structure', and 'computational knowledge' tables.

• 한국콘텐츠학회논문지
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• 제18권11호
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• pp.338-347
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• 2018

본 논문은 마리오 푸조의 원작 소설 "대부 The Godfather"의 영화 시나리오 <대부>에서 프란시스 포드 코폴라의 관점과 각색 스타일을 개념화한 구조적 방법론을 제시한다. 본고는 두 단계로 나뉜다: 첫번째 단계인 "형식적 단계"는 서사의 분석을 요약하고 소설에서 시나리오로 삭제, 추가 및 변형하는 구조적 전환의 효과를 살펴본다. 두 번째 단계는 "의미적 단계"로 원작소설 안의 구조 자체와 각색자의 관점 사이의 차이점을 알아내는 것과 관련된다. <대부>의 오프닝 시퀀스는 소설에서 시나리오로 각색된 한 예로써 각색 스타일을 구체적으로 설명하기 위해 위의 쟁점들을 탐구하는 사례 연구로 사용된다.

• 한국멀티미디어학회논문지
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• 제20권10호
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• pp.1689-1696
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• 2017

The purpose of this study is to contribute to the development of a source of cultural contents by proposing extension possibility of cultural contents based on an original source. To this end, this article examined an aspect of Sherlock Holmes contents based on the novel "Sherlock Holmes" published in 1887. It has been produced as 217 different contents from 1899 to 2017 after publishing the novel Sherlock Holmes, and consequently, it has become the best material for the study of the expansion of contents. As a research method, we examined the concept of Transmedia with the change of media environment. Next, we examined the production method of "Sherlock Holmes" contents, analyzed the transformation factors according to each media, and presented the expansion of contents through "Sherlock Holmes" contents.

• 한국콘텐츠학회논문지
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• 제18권10호
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• pp.217-228
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• 2018

본 연구의 목적은 귀농귀촌에 대한 원주민의 인식과 욕구를 살펴보고, 그 결과를 기초로 원주민의 입장이 고려된 귀농귀촌정책 사업들을 제언하는 데에 있다. 본 연구는 귀농귀촌에대한 원주민의 경험을 심층적으로 파악함으로써 귀농귀촌에 대한 원주민의 인식과 욕구를 면밀히 알아보기 위해 초점집단인터뷰 방법을 활용하였다. 연구결과, 원주민이 느끼는 '상대적 박탈감', '귀농귀촌의한계와 어려움', '성공적인 정착을 위한 방안'과 같이 총 3개의 상위범주로 분류되었다. 본 연구의 결과를 통한 구체적인 함의는 첫째, 원주민이 인식하는 귀농귀촌은 정부정책의 불만과 귀농귀촌인의 태도가 귀농귀촌에 대한 부정적 인식을 조성하는 것으로 나타났다. 둘째, 귀농귀촌의 한계와 어려움으로서 경제적 어려움과 안정적인 농작물 경작 및 농사기술 습득의 어려움 등이 나타났다. 셋째, 원주민이 생각하는 귀농귀촌인과의 관계형성 및 소통과 화합에 대한 인식으로는 원활한 관계형성을 위해 귀농귀촌인들과 직접적인 소통을 하고 정보를 교환할 수 있는 모임의 활성화와 소통과 협업을 위해 귀농귀촌인들이 농촌문화를 이해하고 배우려는 자세와 노력이 필요하다는 것으로 나타났다. 넷째, 귀농귀촌과관련된 정보제공 및 지원을 위한 구심점 역할을 하는 기관이 부족함을 알 수 있다. 다섯째, 원주민이 생각하는 귀농귀촌인의정착을 위한 방안들이 도출되었다. 여섯째, 귀농귀촌인의정착과 원주민과의 관계증진이 함께 이루어질 수 있게끔 원주민들이 귀농귀촌인의 멘토가 되는 것이 필요한 것으로 보인다.

• 한국산학기술학회논문지
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• 제12권3호
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• pp.1367-1372
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• 2011

본 논문은 인간의 인지적 발달 능력을 고려하여 일반인의 눈높이에 맞는 3D 애니메이션 콘텐츠를 제작하여 환경오염 예방 교육 자료로 활용함으로써 일반인의 환경인식 변화에 미치는 영향을 연구하였다. 또한, 본 논문은 3D 가상현실 기법을 사용하여 조선시대 한양의 주거환경 및 자연환경을 재현하는 유적 원형의 디지털 복원 기법을 제시하였다.

• International Journal of Contents
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• 제5권2호
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• pp.26-31
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• 2009

This paper describes a new image watermarking scheme invariant to rotation, scaling and translation (RST) attacks. For obtaining the invariance properties we propose to present an image of watermark by wedges and rings to convert its rotation to shift and then utilize the shift invariance property of the Direct Fourier Transform (DFT). But in contrast to conversional schemes based on the Fourier-Mellin transform (FMT), we do not use a log-polar mapping (LPM). As a result, our scheme preserves high quality of original image since it is not underwent to LPM For withstanding against JPEG compression, noise addition and low-pass (LP) filtering attacks a low frequency watermark is embedded into middle frequencies of the original image. Experiments with various attacks show the robustness of the proposed scheme.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1999년도 봄 학술발표회 논문집(I)
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• pp.76-79
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• 1999

The purpose of this study is to investigate the spalling properties of high-performance concrete with the kinds of aggregates and polypropylene(below PP) fiber contents. According to the experimental results, concrete contained no PP fiber take place in the form of the surface spalling and the failure of specimens after fire test regardless of the kinds of aggregates. Concrete contained more than 0.05% of PP fiber with the kinds of aggregates does not take place the spalling. Concrete using basalt has better performance in spalling resistance that concrete using granite and limestone. It is found that residual compressive strength has 50~60% of their original strength. Although specimens after exposed at high temperature are cured at water for 28days, they do not recover their original strength.