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김병수(Byong-Soo Kim),김계원(Gye -Won Kim),심재용(Jae-Yong Shim) 한국식품과학회 2016 한국식품과학회지 Vol.48 No.1
본 연구에서는 막걸리 양조업체에서 주로 사용되고 있는 발효제인 입국과 개량누룩을 이용한 막걸리 술덧 양조 시 발효성 당함량의 분석방법간 결과 비교를 통하여 다수의 막걸리 양조업체에서 발효성 당 분석 시 적용하고 있는 굴절계 분석 방법의 정확도 검증 및 HPLC 분석결과를 기준으로 DNS법, 펠링법, 포도당 키트를 사용한 분석결과와의 유의성 검정을 통하여 분석방법간 차이를 확인함으로써 영세 규모 막걸리 양조업체에서도 정밀분석 장비를 사용하지 않고 용이하게 발효성 당 분석을 실시할 수 있는 분석방법 적용에 대한 근거를 제시하고자 하였다. DNS법과 펠링법은 발효성 당 분석 기준으로 설정한 HPLC 분석 결과와 가장 유사한 결과를 나타내었으나 포도당 키트와 굴절계를 사용한 분석결과는 HPLC 분석 결과와 큰 차이를 나타내는 것으로 확인되었다. 특히, 굴절계를 사용한 분석 결과의 경우 발효 전주기를 통하여 경시적 변화가 확인되지 않았으며, 발효성 당이 대부분 소비되는 발효 말기에도 매우 높은 당도를 나타내는 것으로 확인되었다. 따라서, 현재 다수의 막걸리 양조업체에서 발효성 당 분석 시 적용하고 있는 굴절계를 이용한 당도 분석은 적합하지 않으며, 술덧 발효 관리 시 오류를 발생시킬 수 있는 가능성이 매우 클 수 있으므로 분광광도계와 같은 별도의 분석 장비를 사용하지 않고 용이하게 발효성 당 분석을 실시할 수 있는 펠링법의 적용이 양조업체에서 적용할 수 있는 가장 정확하고 효율적인 방법으로 볼 수 있다. The objective of this study was to evaluate the accuracy and efficiency of different methods used for the fermentable sugar assay in the production of Makgeolli sul-dut. In the initial stage of fermentation, Ipguk treatment produced a higher alcohol content compared to the Nuruk treatment. However, the alcohol content was not significantly different between the two starters at the final stage of fermentation. Acidity in the Ipguk treatment was higher than that of Nuruk throughout the fermentation period. After analyzing the fermentable sugars using dinitrosalicylic acid (DNS), Fehling’s method, refractometer, glucose kit, and high performance liquid chromatography (HPLC), it was confirmed that the HPLC method was the most accurate for fermentable sugar quantification. In both types of starters, DNS and Fehling’s methods showed results comparable to HPLC in terms of fermentable sugar content, while the glucose kit and refractometer analyses showed relatively large discrepancies, indicating that the Fehling’s method could also be effective for the analysis of fermentable sugars in the manufacture of Makgeolli.
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김병수(Kim byong soo) 한국콘텐츠학회 2007 한국콘텐츠학회 종합학술대회 논문집 Vol.5 No.2_2
2000년대에 들어서면서 우리나라 만화시장은 웹 만화의 성장세가 매우 두드러지고 있다. 이 가운데 스크롤만화는 웹 만화의 주류 표현 양식으로 자리 잡으면서 기존의 출판만화가 갖고 있던 형식을 벗어나 독자에게 새로운 시각적 체험을 선사하고 있다. 특히 세로로 긴 스크롤 방식은 출판만화의 칸 틀과는 비교할 수 없는 ‘장대한 세로 칸’의 사용, 애니메이션적인 기법의 활용, 혁신적인 칸나누기, 말풍선과 나레이션의 칸 밖 배치 등 디지털 만화가 가진 ‘무한 캔버스’와 웹페이지의 ‘스크롤 바’를 충분히 활용하는 방식으로 디지털만화시대를 이끌었다. 그러나 ‘스크롤만화’는 새롭게 도래하고 있는 웹2.0시대에도 여전히 유효할지는 미지수다. 디지털과 웹의 무한한 가능성에도 불구하고 웹 만화가 ‘스크롤’이라는 하나의 창작 방식에만 너무 매몰되어 있는 오늘의 모습은 우려를 낳기에 충분하다. 본고에서는 스크롤만화를 중심으로 한 웹 만화의 표현양식을 분석해 보고 이를 토대로 향후 디지털만화가 진화해갈 방향을 점검해 보고자 한다. The growth of Web comics is very noticeable in Korean comic market as the 21st century is entered. In amongst these1 trends, the scroll comics had established it self as one of the main stream form for expression, outside the form of the traditional published comics, so it is providing a new visual experience for the readers. The scroll method uses the large vertical space that is uncomparable to the column compartment of the printed comics, and its uses of animation-like techniques, innovative partitioning, flob styles and narration partition positioning, the limitless canvas and the scroll bar of the web page, is leading the digital comic age. However, it is still very uncertain whether the ' scroll comics' will still be valid in the age of Web2.0. It is concerning that even though there are limitless potential in the realms of digital and web, the web comics seem to be bound to one particular medium, 'scroll'. In this report, the form of expression in the scroll centered web comics will be analyzed, and based on this, the future evolution of digital comics shall be investigated.
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소셜 네트워크 서비스 사용자의 디지털 아이템 구매와 실제 사용에 관한 연구: 종단적 관점에서
김병수 ( Byong Soo Kim ),한세희 ( Se Hee Han ),강영식 ( Young Sik Kang ) 한국정보시스템학회 2012 情報시스템硏究 Vol.21 No.2
Given the rapid growth of social network services (SNS) such as Facebook and Cyworld, it is important to understand SNS users` decision-making processes such as purchasing and continuance intention. Especially, as a number of SNS providers such as Cyworld and Habbo Hotel recognize the sales of digital items as the main source of their profits, it is critical to in-depth understand SNS users` purchasing behaviors. In this regard, this study explores continued usage behaviors and purchase behaviors of digital items in an SNS environment using a longitudinal research method. This paper develops a theoretical model to deeply understand the key drivers of purchase behavior of digital items through constructs prescribed by two established research streams on information systems, namely continuance usage and habitual usage. Moreover, this study examines the effects of actual and ideal self-image congruity on SNS continuance intention and habit. The research model was tested by using survey data collected from 307 users who have experience with Cyworld. The analysis results show that SNS actual usage directly influence purchase behavior of digital items. SNS users` continuance intention and habit are key drivers to enhance the level of actual usage of the SNS. Both actual and ideal self-image congruity play a key role in enhancing continuance usage and habitual usage. The implication of research and discussions provides reference for SNS providers in marketing and IT strategy.
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황련 열수추출물을 처치한 인간 대장암 세포 SNU-81에서의 단백질 발현 변화
유태모,김병수,유병철,유화승,Yoo, Tae-Mo,Kim, Byung-Soo,Yoo, Byong-Chul,Yoo, Hwa-Seung 대한약침학회 2009 Journal of pharmacopuncture Vol.12 No.1
Background : Anticancer effects of herbal medicine have been reported in various types of cancer, but the systematic approaches to explain molecular mechanism(s) are not established yet. Objective : To find the anticancer-effect and mechanism(s) of Water Extract of Coptis japonica (WECJ) colon cancer cell (SNU-81). Methods : We first selected 11 herbals, and anti-cancer effects of water-extracts from those herbals have been tested in human colon cancer cell line, SNU-81. Among the tested herbals, the WECJ significantly reduced proliferation of SNU-81. To establish a basis of understanding for anti-cancer mechanism, whole proteins have been obtained from SNU-81 harvested at 48 and 96 hrs after the treatment of WECJ, protein expression has been profiled by 2DE-based proteomic approach. Results : Various changes of the protein expression have been monitored, and most frequent dysregulation was found in the molecular chaperons including heat shock protein 90-alpha (Hsp90-alpha), 14-3-3 protein epsilon, T-complex protein 1 subunit alpha, protein disulfide-isomerase A3, and calreticulin. Interestingly, proliferation-associated protein 2G4 has been up-regulated, and it suggests the possible effect of Coptis japonica on ErbB3-regulated signal transduction pathway and growth control of human colon cancer cells. Conclusion : Based upon the present findings, the further study will focus on monitoring various cancer survival factors after artificial regulation of the proteins identified, and it would be the basis for the understanding of the Coptis japonica anti-cancer effect(s) at the molecular level.
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유기용매 중에서 Chlorophyll-a의 흡광 및 형광 (제1보)
이중화,김병수,강정희,박면용,Choong-Hwa Lee,Byong-Soo Kim,Jung-Hee Kang,Myon-Yong Park 대한화학회 1982 대한화학회지 Vol.26 No.4
chl-a는 $5.12{\times}10-6M$ 이상의 농도와 건조된 ethyl ether, benzene, iso-octane중에 소중합체로 존재하고 이 용매에 n-prOH를 소량씩 가할때 단위체로 변함을 확인하였다. 형광은 중합체인 경우에 세게 나타나지만 중합정도에 따라 변하며 단위체인 경우는 약하게 나타났다. 그리고 n-prOH를 용매에 가할 때 흡광과 형광의 ${\lambda}_{max}$은 모두 장파장쪽으로 이동하였다. soret/red band의 비는 흡광도가 감소할수록 작아졌으며 chl-a의 농도에 따른 흡광도는 $1.0{\times}10^{-6}$M 정도의 용액에서 최대값을 나타냈다. The absorbance and fluorescence yields of chl-a vs. concentration of n-prOH in diethyl ether, benzene and iso-octane were shown the characteristic point which chl-a structures are changed to monomer by the solvation of oligomer, and the spectral differences of fluorescence excitation between oligomer and monomer were identified by fluorimetry. All the maximum wavelength of absorbance, fluorescence excitation and fluorescence emission were shifted to longer wavelength. The ratios of soret/red band were depended on the band intensions and the polarities of solution in organic solvents mixed with n-prOH.
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갯녹음 지역과 바다숲 조성지에 서식하는 둥근성게, Strongylocentrotus nudus, 산란기의 생태적 특성
최윤석(Youn-Scuk CHOI),김병수(Byong-Su KIM),손용수(Yong-Soo SON),김형해(Hyoung-Hae KIM),이동제(Dong-Je LEE),김명래(Myoung- Rae KIM),박기영(Kie-Young PARK) 한국수산해양교육학회 2024 水産海洋敎育硏究 Vol.36 No.3
Ecological characteristics of the globular sea urchin Strongylocentrotus nudus in barren areas (due to blanching) and seaweed forest (constructed) areas was compared during the spawning period of August to December off shore Duekshin-ri, Uljin, Kyeongbuk Province of Korea. Seaweed communities consisted of a total of 18 species in 3 phyla with biomass of 481.4 g/m2 the barren areas, and a total of 18 species in 3 phyla with 8,259.9 g/m2 in the seaweed forest, where 17.2-fold higher biomass than that in the barren habitats was recorded. Sea urchins tests were with ranges of their diameter from 4.8 to 7.9 cm (monthly mean: 5.5–6.2 cm) in the barren areas and 4.9 to 7.6 cm (monthly 5.3–6.3 cm) in the seaweed forest. Ranges of test heights fell between 2.3 and 4.8 cm (mean 3.0–3.3 cm) in the barren areas, and 1.6 and 4.8 cm (3.0–3.7 cm) in the marine forest areas. Gonad index of sea urchins peaked in September in the barren areas (15.9) and the marine forest areas (25.1), decreased until November (to 3.9 and 4.5, respectively), then increased progressively again from December. Gonad index was 1.6-fold higher in the marine forest areas than that in the barren areas. Despite the region- or water temperature-dependent variations the spawning period is estimated to be from August to November on the east coast and it can be an effective way for scientific sea forest management to remove sea urchins before the spawning period.
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