• Proceedings of the Korea Multimedia Society Conference
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• 2002.05d
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• pp.886-889
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• 2002

본 논문에서는 보다 강인한 워터마크의 은닉을 위하여 웨이브릿 변환영역에서 정상상태 일반화 가우스(generalized Gaussian) 모델을 이용한 적응 워터마크 은닉 기술을 제안한다. 워터마크는 고주파 영역에서 연속 부대역 양자화(successive subband quantization: SSQ)를 이용하여 다해상도 영상의 웨이브릿 계수 중에서 시각적 중요 계수(perceptually significant coefficients: PSC)에만 은닉한다. 워터마크를 은닉하기 위한 지각모델은 정상상태의 통계적 특성을 이용한다. 이것은 국부영상 특성을 갖는 NVF(noise visibility function) 함수에 의하여 계산되어진다. 은닉모델은 다해상도내의 각 서브밴드별 분산과 형상계수(shape parameter)를 사용한다. 여러 가지 공격 실험결과 우수한 비가시성과 강인성을 확인하였다.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.3
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• pp.1769-1772
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• 2013

A case-control study of the association of miR-499A>G rs3746444 with risk of hepatocellular carcinoma (HCC)was conducted. Patients with HCC and healthy control subjects were recruited for genotyping of miR-499A>G using duplex polymerase-chain-reaction with confronting-two-pair primer(PCR-RFLP) analysis. The MiR-499 GG genotype was associated with a decreased risk of HCC as compared with the miR-499 AA genotype (adjusted OR=0.74, 95%CI=0.24-0.96). Similarly, the GG genotype showed a 0.45-fold decreased HCC risk in a recessive model. The MiR-499 G allele was significantly associated with decreased risk of HCC among patients infected with HBV in a dominant model (OR=0.09, 95%CI= 0.02-0.29). In conclusion, the MiR-499A>G rs3746444 polymorphism is associated with HCC risk in the Chinese population, and may be useful predictive marker for CAD susceptibility.

• Journal of architectural history
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• v.20 no.2
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• pp.55-70
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• 2011

This paper aimed at analyzing of structural carpentry terminology for bracket structure in Yingzaofashi ${\ll}$營造法式${\gg}$in the era of Song Dynasty and illuminating coinage characteristics and method of Structural Carpentry Terminology for bracket Structure through graphonomy research and system and structure of these terms. The results are as follow. The structural carpentry terminologies for structure were identified to be approximately 23 words, and terminology of bracket structure鋪作 is largely categorized into 3 categories of Type鋪作次序, Structure, Place. On the other hand, the structural carpentry terminologies for parts largely categorized into 2 categories of Bracket structure鋪作, Others. Bracket structure terminologies for parts were derived from the core of Dou枓, Gong栱, Ang昂, Fang方. The phenomena of derivation in structural carpentry terminology for bracket structure can be explained by the difference in the shape of subsidiary material and the location for usage of the subsidiary material and part of the subsidiary material and their functions.

• Survey Research
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• v.2 no.2
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• pp.17-26
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• 2001

We broadly review the whole articles in Survey Methodology published by Statistics Canada. By the classification of subject and application area as well as years. we find some features the articles. In addition. we classify them according to the sort of data analyzed in the article and investigate how does use data.

• The Journal of Korean Medical History
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• v.16 no.1
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• pp.39-62
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• 2003

${\ll}$OhJangYukBuDo五臟六腑圖${\gg}$ is the Book Name which was recorded in "Euibangyoochui醫方類聚", and the Author had been clarified as "HoEum胡愔" in accordance with those books likely as "New Records of Tang Dynasty新唐書", "History of Song Dynasty宋史" The said "HoEum" had displayed her activity at the Age of Tang Dynasty, as a Female-Physician also a Female taoist, who retired to hermitage in Mount Taebaek. As being perceived the abstruse reasons in those scriptures named "Hwang Jung Kyung黃庭經" and "Koodo(舊圖)", she composed the book at Daejung 4th Year of King Sun, namely AD 848 named "HwangJungNaeKyungOhJangYukBuBoSaDo ${\ll}$黃庭內景五臟六腑補瀉圖${\gg}$ ".

• Journal of The Korean Astronomical Society
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• v.15 no.2
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• pp.59-70
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• 1982

We have observed 85 UBV standard stars(V<6) with SNU photoelectric photometer system and 24" Cassegrain reflector at Sobaeksan Observing Station during the period between January and May, 1980 in order to examine the photometer system and to determine atmospheric extinction coefficients. From five night observations, the following results were obtained: (1) The set of filters(V=2mm GG 495, B=2mm GG 385+1mm BG 12, U=2mm UG 2) is better than the other filter set used in our tests on the basis of linear instrumental calibrations for V and B filters. (2) The SNU detecting system is very stable within ${\sigma}=0.002$ in magnitude in a night but the variation in its stability from night to night is not negligible. (3) The extinction coefficients were derived from two different methods and we have found no systematic seasonal variation in the extinction coefficients although the mean dispersion is considerable.

• Journal of the Korean Society for Library and Information Science
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• v.2
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• pp.79-102
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• 1971

The P'aerim and the Taedong Yasung are the two better known among unofficial history collections of the Yi Dynasty still available. The compilers and writers of unofficial historical records generally were people without official connection with the incidents recorded, and were thus in a position to be critical in their evaluation. Therefore, in order to gain a balanced view of Korean history, these unofficial history sources must also be consulted. However, there are differences in the contents of various unofficial history collections, even though the titles may be identical. For this reason, the writer has made a comparative study on the. contents of both the P'aerim and the Taedong Yasung. As a result, various differences between the two collections are noted. This points out the need for continued research on collections of unofficial historical records.

• Journal of The Korean Astronomical Society
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• v.34 no.4
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• pp.321-323
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• 2001

Compressible, magnetohydrodynamic (MHD) turbulence in two dimension is studied through high-resolution, numerical simulations with the isothermal equation of state. First, hydrodynamic turbulence with Mach number $(M)_{rms}\;\~$1 is generated by enforcing a random force. Next, initial, uniform magnetic field of various strengths with Alfvenic Mach number Ma $\gg$ 1 is added. Then, the simulations are followed until MHD turbulence is fully developed. Such turbulence is expected to exist in a variety of astrophysical environments including clusters of galaxies. Although no dissipation is included explicitly in our simulations, truncation errors produce dissipation which induces numerical resistivity. It mimics a hyper-resistivity in our second-order accurate code. After saturation, the resulting flows are categorized as SF (strong field), WF (weak field), and VWF (very weak field) classes respectively, depending on the average magnetic field strength described with Alfvenic Mach number, $(Ma)_{rms}{\ge}1$, $(Ma)_{rms}{\~}1$, and $(Ma)_{rms}{\gg}1$. The characteristics of each class are discussed.

• Proceedings of the Korean Society of Food Science and Nutrition Conference
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• 2001.12a
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• pp.152-160
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• 2001

The ability of microbial strains to confer health benefits to human and animal hosts is not a feature of many organisms. Lactic acid bacteria are the most commonly used bacteria applied as probiotics and there is now strong evidence that certain strains confer tangible benefits to the host. In terms of preventing infection, the ability of probiotic lactobacilli to colonize the tissue site, even temporarily, and inhibit growth and adhesion of pathogens, has been documented. Using molecular tools, such as RAPD and DGGE, probiotic organisms can be tracked through the intestine and in the vagina, and their impact on the flora assessed. Arguably, strains L. rhamnosus GG and GR-l are the most studied probiotic strains in terms of human application to the gut (GG and GR-l) and vagina (GR-1). Combined with L. fermentum RC-14, GR-l provides a two-pronged therapeutic for the intestine and urogenital tract. Care in manufacturing and distribution is essential to ensure that optimal doses of probiotics are accessible to consumers and patients.

• Journal for History of Mathematics
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• v.31 no.6
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• pp.291-313
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• 2018

This study aims to analyze Pardies' ${\ll}$Elements of geometry${\gg}$. This book is very interesting from the perspectives of mathematical history as well as of mathematical education. Because it was used for teaching Kangxi emperor geometry in the Qing Dynasty in China instead of Euclid's which was considered as too difficult to study geometry. It is expected that this book suggests historical and educational implications because it appeared in the context of instruction of geometry in the seventeenth century of mathematical history. This study includes the analyses on the contents of Pardies' ${\ll}$Elements of geometry${\gg}$, the author's advice for geometry learning, several geometrical features, and some features from the view of elementary school mathematics, of which the latter two contain the comparisons with other authors' as well as school mathematics. Moreover, some didactical implications were induced based on the results of the study.