• Title/Summary/Keyword: Product similarity

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Isolation of the Threonine Dehydratase Gene from a Tylosin-Producing Strain of Streptomyces fradiae

  • Lee, Sang Hee;Kye Joon Lee
    • Journal of Microbiology and Biotechnology
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    • v.5 no.5
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    • pp.305-308
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    • 1995
  • From the plasmid library made from Sstl and San-digested genomic DNA of Streptomyces fradiae NRRL 2702, four positive clones were selected using an oligodeoxynucleotide probe from the N-terminal amino acid sequence of purified threonine dehydratase. The cloned gene for threonine dehydratase was a 2.0 kilo-base pair DNA fragment. The deduced amino acid sequence of PCR product (PCR245) was matched to that of the N-terminal part of threonine dehydratase from S. fradiae and this showed a high similarity to the threonine dehydratases of other organisms. This indicated that amino acid sequences of threonine dehydratases were highly conserved and the polypeptide product of the PCR245 was likely to be involved in the deamination of threonine.

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An Ontology Driven Mapping Algorithm between Heterogeneous Product Classification Taxonomies

  • Kim, U-Ju;Choe, Nam-Hyeok;Choe, Tae-U
    • Proceedings of the Korea Inteligent Information System Society Conference
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    • 2005.11a
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    • pp.295-303
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    • 2005
  • Semantic Web and its related technologies have been opening the era of information sharing via Web. In the meantime, there are several huddles to overcome toward the new era and one of the major huddles is information integration issue unless we build and use a single unified but huge ontology which address everything in the world. Particularly in e-business area, information integration problem must be a great concern in search and comparison of products from various internet shopping sites and e-marketplaces. To overcome such an information integration problem, we propose an ontology driven mapping algorithm between heterogeneous product classification and description frameworks. We also perform comparative evaluation of the proposed mapping algorithm against a well-known ontology mapping tool, PROMPT.

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Systematization Design Technique for Linear Actutor by using similarity theory (유사이론을 적용한 리니어 액츄에이터의 계열화 설계기법)

  • 조경재;차인수;이권현
    • The Transactions of the Korean Institute of Power Electronics
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    • v.4 no.5
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    • pp.442-448
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    • 1999
  • We introduce the systematization design method using similarity theory which is profitable in the c compatability and standardization of the developed products and the reduction of construction time and price to d develop and design a machine equipment. Systematization design method is to select the standard model for d designing and developing from the large machinery to the super precision one and then to induce the c characteristic of machines step by step in advance in case of miniaturizing and making largelongleftarrowscale. With this m method, we extract the peculiar characteristics through the close analysis on the physical and ttx:hnical part a and predict the characteristic experiment for the magnitude we desire by an머ogical mathematical analysis. At l last, we will get the design sample the users demand with the verification of the data on optimum design p previously. In this paper, we could predict the characteristic of the product the users rC'Quire in advance with the d design method applying similarity theor${\gamma}$ and suggested the design method which could meet the various r requirements the users want. Also, it is shown that the standardization design by the similarity theory is a available as comparing the characteristic values expc'Cted through the experiment of the actual actuator with t the theoretical character data of similarity theoη after selecting the linear actuator as a model.

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Mobile app Loyalty of Cross-over Shoppers: A Comparison of Korean and Chinese (한·중 크로스오버 쇼퍼들의 모바일 앱 충성도에 대한 탐색적 연구)

  • Park, Eunjoo;Jin, Gu;Park, Shinyoung
    • Fashion & Textile Research Journal
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    • v.20 no.3
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    • pp.293-303
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    • 2018
  • Since 2009, consumers could access a new shopping channel called 'mobile shopping' with the generalization of smartphones. Mobile shopping (based on wireless communication technology), emphasizes convenience differentiated from internet shopping. A recent report introduced fashion products as powerful global drivers for mobile shopping sales. Korea and China have the highest percentage of consumer mobile shopping experiences compared to other countries. This study investigates the effects of cross-over shopping orientation, perception of app attributes, and flow on app loyalty that compared Korean and Chinese consumers. We obtained 652 usable questionnaires from two local college students; subsequently, data were analyzed by using factor analysis, Cronbach's alpha, and regression analysis using SPSS 21.0 Package. The study results showed that the cross-over shopping orientation affected perception of app attributes that included Review/Information, Design, Response and Product. Product only affected Flow, which reflected a high similarity between Korean and Chinese consumers. However, Korean and Chinese consumers showed remarkable differences in the factors related to app loyalty. Therefore, the results indicate that retailers of fashion products have developed strategies to improve mobile sales and increase the app loyalty of cross-over shopping orientation consumers.

A Study on the Evaluation & Selection of Multimedia Authoring Tools using the AHP (AHP 기법을 이용한 멀티미디어 저작도구 평가 및 선정에 관한 연구)

  • Sim Sang-Chun;Kim Yong-Kyeom
    • Korean Management Science Review
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    • v.21 no.2
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    • pp.191-213
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    • 2004
  • This study addresses the evaluation criteria of multimedia authoring tools(MATs), the way which decision-maker can exclude outlier matrix from group using the concept of the compatibility index, and how AHP can be applied to the selection of MATs in a group decision-making environment. The AHP technique allows an evaluator to quantify the relative importance of elements at each hierarchy and to calculate the composite relative weights for each product(i.e. MATs). This decision process allows setting to priority of the MATs based on the AHP. The results indicated that technical ability of MATs was the most significant factor in affecting their decision, trailed by managerial efficiency and vendor support. To the experts, multimedia data support was the less important than development interface. Also, the results indicated that product A(0.510) was their first choice, trailed by product C(0.286) and B(0.204). Assessing the composite relative weights revealed that expert group's members were consistent with the rankings of decision variables(evaluation criteria variables) statistically in selecting their MATs. Therefore, we believed that expert group's members have achieved sufficient agreement to permit the use of geometric mean to average the group's preference without obscuring the differences of individual opinions.

Product versus Process Innovation and the Global Engagement of Firms

  • Jang, Yong Joon;Hyun, Hea-Jung
    • Journal of Korea Trade
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    • v.25 no.4
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    • pp.37-59
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    • 2021
  • Purpose - Although models of innovation and exporting dominate recent studies of relations between innovation and access to foreign markets, relations between innovation and foreign direct investment (FDI) are less explored. This is especially true of relations between types of innovation and FDI. We fill that gap in the literature with empirical evidence that clarifies whether firms enter foreign markets through exports or FDI. Design/methodology - In order to assess the role of innovation in firms' international engagement strategies, we develop research hypotheses and present new empirical evidence on firms' choice of entry - exports and FDI - based on firm-level data. Findings - Our empirical results suggest that the impact of product innovation is more significant in transition from being a purely domestic firm to an exporter, while process innovation more significantly affect transition from being an exporter to a multinational enterprise. Our results also support 'self-selection into FDI' rather than 'learning-by-performing FDI' in the relationship between innovation and firms' overseas expansion. Originality/value - Recent literature on the relationship between innovation and firms' participation in foreign markets is dominated by models of innovation and export behavior. However, foreign direct investment by multinational enterprises may also be associated with firms' innovative activities. We first analyze how product and process innovations influence firms' choices to initiate exports or FDI.

Useful Applications Decursinol Derivatives as Biochemical Fungicides (데커시놀 파생물질들의 항징균제로서의 활용)

  • Yun-Jeong Shin;Jiyoung Shin;Hyewon Jang;Hokyoung Son;Yonghoon Kwon
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2022.09a
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    • pp.30-30
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    • 2022
  • Natural products decursin and decursinol angelate were recently reported as benign fungicides for controlling rice blast. Inspired by the structural similarity of the cumarin compounds and gained hint from the skeletal motifs, we designed and prepared synthetic compounds to increase the natural product efficacy and evaluated their antifungal activities against various plant disease pathogens in vitro. Synthetically prepared compound 4 and 5 indeed suppressed the mycelial growth of B. cinerea, F. oxysporum, P. italicum, and R. quercus-mongolicae. Additionally, compound 5 effectively prevents the growth of C. coccodes and C. parasitica. Furthermore, both 4 and 5 possess better inhibitory activities on spore germination of F. oxysporum and M. oryzae than the natural product decursin. These results suggest that the effect of the lead compound for plant disease protection can be improved by tuning the structure of the original natural product and decursinol chloroacrylates 4 and 5 are candidates for the control of F. oxysporum and M. oryzae.

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Decursinol Derivatives Useful as Fungicides (데커시놀 파생물질들의 항징균제로서의 활용)

  • Yun-Jeong Shin;Jiyoung Shin;Hyewon Jang;Hokyoung Son;Yonghoon Kwon
    • Proceedings of the Plant Resources Society of Korea Conference
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    • 2022.09a
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    • pp.98-98
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    • 2022
  • Natural products decursin and decursinol angelate were recently reported as benign fungicides for controlling rice blast. Inspired by the structural similarity of the cumarin compounds and gained hint from the skeletal motifs, we designed and prepared synthetic compounds to increase the natural product efficacy and evaluated their antifungal activities against various plant disease pathogens in vitro. Synthetically prepared compound 4 and 5 indeed suppressed the mycelial growth of B. cinerea, F. oxysporum, P. italicum, and R. quercus-mongolicae. Additionally, compound 5 effectively prevents the growth of C. coccodes and C. parasitica. Furthermore, both 4 and 5 possess better inhibitory activities on spore germination of F. oxysporum and M. oryzae than the natural product decursin. These results suggest that the effect of the lead compound for plant disease protection can be improved by tuning the structure of the original natural product and decursinol chloroacrylates 4 and 5 are candidates for the control of F. oxysporum and M. oryzae.

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Actinodura roseorufa에서 생산되는 UK-58,852로부터 PKS type I 에 관련된 생합성 유전자의 분리 및 분석

  • Kim, Ja-Yong;Lee, Ju-Ho;Kim, Dae-Hui;Kim, Dong-Hyeon;Song, Jae-Gyeong;Lee, Hui-Chan
    • 한국생물공학회:학술대회논문집
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    • 2000.11a
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    • pp.660-664
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    • 2000
  • To clone genes related UK-58,852 production, genomic DNA of strain Actinodura roseorufa was used for the construction of genomic library using pOJ446 cosmid vector. The genomic library was screened rising dehydratase PCR product and eryA gene as a DNA hybridization probe. pHD54 was isolated, which contained an approximately 35kb of inserted DNA. BamHI, SmaI and sonicater fragments hybridized to eryA probe. All of pHD54 BgmHI, SmaI and sonicater fragments were subcloned into pGEM7 and some fragments which hybridized to eryA probe were sequenced. The nucleotide sequence was analysed using BLAST program. The sequence identities were observed in KS,AT, KR, ER and PKS loading domains. Also oxidoreductase showed similarity to rifamycin module10, and dTDP-D-glucose 4,6 dehydratase and TDP-D-glucose synthase involved in biosynthesis of sugar showed similarity to Streptomyces argillaceus.

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The Design.Marketing Strategies for Korean Traditional Sauces by emotion-oriented Categorization (감성지향적 범주화를 통한 장류제품의 디자인.마케팅 전략)

  • Lee, Yu-Ri;Yang, Jong-Youl;Park, Sang-June
    • Science of Emotion and Sensibility
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    • v.10 no.3
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    • pp.491-502
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    • 2007
  • Categorization is very important for product design. Consumer's emotion become different according to a type of categorization, so design concept and design elements must be combined differently with difference of the emotion. Specially, categorization process is necessary if nowadays product line is enlarged, and a product differentiation is not clear. That is, designers decide on correct categories and a design concept based on similarity of emotion and have to provide to consumer-oriented design. The purpose of this study is to provide a design direction for Korean traditional sauce products after extracting consumers' sensitivity from the whole image of Korean traditional sauce and each images of the sauces-korean hot pepper paste, soybean paste, fermented soybeans paste, SsamJang, and soy sauce- and deciding categories of the each sauces based on the extracted sensitivities' similarity. In the result of this study, we knew that Korean traditional sauces didn't differentiate from consumers' preference images. In our empirical research, the research - emotional image survey on sauces - have conclusion that emotional image of "well-being", "tasty" have positive influence, but emotional image of "messy and dirty", "smelly" have negative influence. Therefore, we suggest that positive emotional images like "tasty" should be emphasized, but negative emotional images like "messy" should be eliminated for design and marketing strategy of Korean traditional sauces. This research will suggest the guideline for product design with respect to academic aspects and working-level aspects.

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