• 한국식품영양학회지
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• 제33권1호
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• pp.17-26
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• 2020

This study was conducted to evaluate the functionality of fermented black garlic extracts under various conditions. Black garlic powder was prepared by aging for 0~72 hours at 80℃ depending on relative humidity (RH). It showed the highest antioxidant effects among the samples; the total antioxidant activity of black garlic powders at RH 75%, 84%, and 90% for 72 hours was increased 31.9 times, 28.2 times, and 22.6 times compared with that of the fresh garlic powder, respectively. Also, the alliin content was gradually decreased. S-ally-L-cysteine and S-ethyl-cysteine levels were increased; the highest values were 495.9 ㎍/g and 1,769.7 ㎍/g after aging for 72 hours at RH 75%. Aspartate transaminase (AST) and alanine transaminase (ALT) levels were increased following high fat diet feeding, but the rise was obviously reduced by administration of black garlic extract. The total cholesterol, LDL/VLDL-cholesterol, and triglyceride contents in serum were significantly lower in methionine and choline deficient (MCD) diet treatment groups than in the positive control group. The concentration was increased following the intake of black garlic and fermented black garlic extracts. Therefore, black garlic extracts could be an ideal material as a dietary supplement in healthy functional foods to improve the effects on fatty liver.

• Molecular & Cellular Toxicology
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• 제4권1호
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• pp.78-84
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• 2008

EGFR has been intensively investigated as a target to block the signal transduction pathway which stimulates cancer growth and metastasis. Studies about structure-activity relationship for tricyclic azepine derivatives were performed with topomer-CoMFA. The derived topomer-CoMFA model with steric and electrostatic field parameters based on fragment units gave reasonable statistics ($q^2$=0.561, $r^2$=0.679). The model explains why a halogen atom at the meta position of aniline is important to increases inhibitory activity. This comes from an electrostatically negative groups are favored near this region. The model also shows that there are sterically favored regions around methoxy group extended from oxazepine derivatives. The findings about steric and electrostatic effects can be utilized for designing new inhibitors.

• 한국도서관정보학회지
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• 제47권3호
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• pp.187-211
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• 2016

본 연구는 도서관의 자유학기제 프로그램에 대한 학생의 수요조사를 알아보기 위하여 설문을 개발하여, 이를 기반으로 중학교 1, 2학년 학생들을 대상으로 인식을 조사하였다. 중학생들이 자유학기제를 통해서 향상시키고자 하는 능력요소는 진로탐색능력이며, 중점적으로 운영된 자유학기제 유형은 진로탐색활동이다. 수업방식은 주로 체험중심 수업으로 이루어졌으며, 자유학기제 동안 참여하고 싶은 활동으로는 진로탐색 영역에서는 현장 체험 활동을, 학생선택 프로그램에서는 요리실습을, 동아리활동에서는 스마트폰 앱 개발, 예술영역에서는 디자인 활동을, 체육영역에서는 배드민턴을, 정보활용능력에서는 아이패드 사용하기를 가장 선호하는 것으로 나타났다. 또한 자유학기제와 연계한 도서관 프로그램 중 직업체험 프로그램을 가장 선호하는 것으로 나타났다. 향후 학생들의 의견을 참고하여 자유학기제 프로그램 개발과 실행을 해야 할 것이며, 도서관이 제공한 자유학기제 프로그램에 대한 만족도를 조사할 필요성이 나타났다.

• 한국미생물·생명공학회지
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• 제35권4호
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• pp.357-363
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• 2007

249 fungal strains were isolated from the roots of 26 plants, and the production of GAs was spectrophotometric ally examined. As a result 76 fungal strains were shown to produce GAs. Bioassay of culture broth from seventy six fungal strains producing GAs was carried out with waito-c rice, that is dwarf rice. The seventy six fungi with GAs-producing activity were incubated for seven days in 40 mL of Czapek's liquid medium at $30^{\circ}C$ and 180 rpm, and the culture broth of fungi were treated on the 2-leaf rice sprout. Fifteen of these showed plant growth promoting activity and the amount of each GAs in the medium was measured by Gas chromatographymass spectrometer (GC-MS). Nine of these fungi were also identified by genetic analysis of the nucleotide sequences in the internal transcribed spacer region of the ribosomal DNA.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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• pp.86-89
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• 2006

Ocean color remote sensing community currently uses the different solar irradiance spectra covering the visible and near-infrared in the calibration/validation and deriving products of ocean color instruments. These spectra derived from single and / or multiple measurements sets or models have significant discrepancies, primarily due to variation of the solar activity and uncertainties in the measurements from various instruments and their different calibration standards. Thus, it is prudent to examine model-to-model differences and select a standard reference spectrum that can be adopted in the future calibration and validation processes, particularly of the first Geostationary Ocean Color Imager (GOCI) onboard its Communication Ocean and Meterological Satellite (COMS) planned to be launched in 2008. From an exhaustive survey that reveals a variety of solar spectra in the literature, only eight spectra are considered here seeing as reference in many remote sensing applications. Several criteria are designed to define the reference spectrum: i.e., minimum spectral range of 350-1200nm, based completely or mostly on direct measurements, possible update of data and less errors. A careful analysis of these spectra reveals that the Thuillier 2004 spectrum seems to be very identical compared to other spectra, primarily because it represents very high spectral resolution and the current state of the art in solar irradiance spectra of exceptionally low uncertainty ${\sim}0.1%.$ This study also suggests use of the Gueymard 2004 spectrum as an alternative for applications of multispectral/multipurpose satellite sensors covering the terrestrial regions of interest, where it provides spectral converge beyond 2400nm of the Thuillier 2004 spectrum. Since the solar-activity induced spectral variation is about less than 0.1% and a large portion of this variability occurs particularly in the ultraviolet portion of the electromagnetic spectrum that is the region of less interest for the ocean color community, we disregard considering this variability in the analysis of solar irradiance spectra, although determine the solar constant 1366.1 $Wm^{-2}$ to be proposed for an improved approximation of the extraterrestrial solar spectrum in the visible and NIR region.

• 한국식품저장유통학회지
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• 제23권4호
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• pp.599-604
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• 2016

조릿대 추출물을 이용한 식혜 제조의 가능성을 검토하고 기본 제조조건을 설정하기 위하여 추출물의 첨가수준을 달리하여 식혜를 제조하고 그 품질 특성에 대해 조사하였다. 조릿대 추출물을 첨가한 경우 pH와 총산 함량은 유의적인 변화가 없는 반면 당도, 환원당, 총 폴리페놀, 총 플라보노이드 함량은 식혜 SBE-30과 식혜 SBE-50에서 유의적으로 높았다. 각 식혜의 색상은 추출물 첨가수준이 높을수록 L값의 감소 및 b값과 탁도의 증가가 뚜렷하였다. DPPH 라디칼 소거능은 식혜 SBE-5의 경우 대조구와 유의적 차이가 없었으나 10% 이상의 조릿대 추출물 첨가조건에서는 첨가수준에 비례하여 유의적으로 증가하였다. 맛에 대한 관능평가에서 비록 유의적인 차이는 확인되지 않았으나 식혜 SBE-30과 SBE-50의 점수가 높은 편이었고, 색상에 대한 선호도는 추출물의 첨가수준에 따라 점차 낮게 평가되었으며 종합적 기호도 또한 식혜 SBE-50이 낮은 경향을 나타내었다.

• 한국융합학회논문지
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• 제11권1호
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• pp.141-150
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• 2020

논문은 스스로 자신을 부양하는 60-75세 도시 노인들의 공동체 공공 공간에서의 행동특성을 연구하여 노령화 사회의 공공 공간 다지인원리를 제안한다. 경험디자인 방법론을 활용하여 자연 관찰 방법, 설문, 인터뷰 및 그림자 추적을 통해 노인들의 일상 활동에서 시공간의 특성을 분석한다. 공동체의 공공 장소에서 노인들의 행동은 본질적으로 더 많은 관심과 교제를 얻는 사회적 활동이다. 이것은 노인의 공간 사회 활동 수요, 활동 발생 시간, 활동 빈도 및 지속시간 등에 대해 결정한다. 지역 공동체의 공공 장소에서 노인의 행동은 장기적이고 규칙적인 특성을 가지고 있으며, 그 행동은 공간에 따라 약간 변화하지만, 더 큰 영향을 미치는 객관적인 요소는 성별, 연령 및 기후이며, 주관적인 요소는 생활 방식, 가족 구성 및 소득 수준이다.

• 복식
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• 제57권6호
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• pp.101-111
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• 2007

The purpose of this study is to examine the features of the conversational patterns presented on the fashion in the early 2000's and analyze it from cultural view. The expression of the patterns is a result of a creative aesthetic activity, mental activity, and the reflection of the common cognition. And the fashion is a part of the life environment. So the patterns presented on the fashion provides a clue to figure out the common unconscious sense for explaining the culture. The patterns have been expressed with different methods belonging to each culture such as weaving and prints. And those of the each cultural group have been communicating each other. The silk came to the Europe in the 6th century. The textile industry which flourished since 15th century. And they shows the chinoiserie or indian prints, not only the european culture. We can observe that the exchange of the techniques and cultures between cultural groups like the east and the west, and the presentation of the patterns is a way to express their own desires. The patterns presented after 2,000 can be classified by the form and the contents. But, more specifically, the patterns classified by the contents, which is Conversational design, can be categorized as followed according to the origin; reflecting cultural identity, Popular culture, Lohas lifestyle, and art movements. Which can be summarized as that the people have more interest on the different cultural group, diversity, retrospectiveness, and exoticism, which the patterns originally belonged to than on the form itself.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2013년도 춘계학술대회
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• pp.175-176
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• 2013

근래 우리나라 에서는 압화에 대한 관심이 증폭되고 있으며 그 예술성에 대한 지속적인 연구가 이뤄지고 있다. 실내디자인 압화는 압화의 예술적인 활동으로부터 실생활 용품으로 발전된 것이다. 실내 디자인이란 인간이 거주하는 실내공간을 목적에 맞게 기능적 조건과 정서적 조건을 모두 만족 시켜야 하는 종합디자인 활동이라 할 수 있다. 본 연구에서는 압화의 예술성을 실내 디자인에 적용 시키기 위해 기존 압화기법에 광매체와 빛 투과성이 우수한 양파 압화를 이용하여 감성적이고 세련된 광매체압화 조형물 제작 기법을 연구하고 이를 이용하여 실제 조형물을 제작 하였다. 여기에 사용된 무기전계 발광시크는 두께가 약 0.2mm의 얇은 발광판으로 저전력에서 고휘도의 빛을 발생시키면서도 열이 발성하지 않는 첨단 광매체로 압화와 무기전계발광시트의 접목으로 기존의 압화의 한계를 넘어서는 새로운 형태와 내러티브를 도입하는 것이 가능해 졌고, 이를 통해 절전형 조명 조형물을 만들 수 있게 되었다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제12권9호
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• pp.4389-4411
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• 2018

High dynamic range (HDR) images are becoming pervasive due to capturing or rendering of a wider range of luminance, but their special display equipment is difficult to be popularized because of high cost and technological problem. Thus, HDR images must be adapted to the conventional display devices by applying tone mapping (TM) operation, which puts forward higher requirements for intellectual property protection of HDR images. As the robustness presents regional diversity in the low dynamic range (LDR) watermarked image after TM, which is different from the traditional watermarking technologies, a concept of watermarking activity is defined and used to distinguish the essential distinction of watermarking between LDR image and HDR image in this paper. Then, a novel robust HDR image watermarking algorithm is proposed against TM operations. Firstly, based on the hybrid processing of redundant discrete wavelet transform and singular value decomposition, the watermark is embedded by modifying the structure information of the HDR image. Distinguished from LDR image watermarking, the high embedding strength can cause more obvious distortion in the high brightness regions of HDR image than the low brightness regions. Thus, a perceptual brightness mask with low complexity is designed to improve the imperceptibility further. Experimental results show that the proposed algorithm is robust to the existing TM operations, with taking into account the imperceptibility and embedded capacity, which is superior to the current state-of-art HDR image watermarking algorithms.