• Title/Summary/Keyword: Trade patterns

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TradeB: A Blockchain-based Property Trade Service Using Trusted Brokers (TradeB: 신뢰성있는 중개인을 통한 블록체인 기반 재화 계약 서비스)

  • Yoon, Yeo-Guk;Eom, Hyun-Min;Lee, Myung-Joon
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.9 no.9
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    • pp.819-831
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    • 2019
  • The types of properties traded in modern times are rapidly increasing due to changes in consumption patterns. However, as the type of properties traded increases, estimation about the value of properties may become inaccurate. There is a problem that it is difficult for consumers to estimate the right value and the variety of trading forms makes it difficult to guarantee the reliability of value estimation As access to a variety of properties has expanded, these shortcomings are considered to be a factor that hinders the stability of the shared economic market. In this paper, to resolve this issue, we present a blockchain-based property contract service through a trusted broker. The developed service registers trusted brokers into smart contracts on the Ethereum blockchain and use them for the evaluation and contract process of properties. In addition, registered contents, proposals and contracts of properties are stored in the blockchain to ensure the reliability of the contract process. Every step of the contract process is stored in the smart contract, recorded in the transaction history of the blockchain, ensuring the reliability of the stored data. In addition, the entire process of registration, proposal, and contract is driven by smart contracts designed by state machine technology, enabling users to more securely control the contract process.

An Empirical Study on the Korean Trade of International Tourism Services - Focusing on 16 nations including US, Japan and China - (한국 관광교역 현황분석을 위한 실증연구 - 미국·중국·일본 등 16개국을 중심으로 -)

  • Chung, Eun-Kyung;Kim, Chul;Choi, Young Jun
    • International Area Studies Review
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    • v.13 no.3
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    • pp.413-438
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    • 2009
  • Tourism is an attractive field of industry to many countries due to its strong potentials in increasing employment rates as well as improving the national image. The positive effect of the tourism on the national economy and globalization has been recognized in Korea. A multilateral effort has been made in order to develop its tourist industry. Therefore, it is necessary to analyze the patterns of tourism demand in Korea. The present study analyzes and demonstrates the effects of a nation's characteristics on tourism demand. The study model was based on factors that affected tourism demand, especially emphasizing on the economic size, distance, national income, and language differences from the mother country. In particular, this study highlights the effects of economic relations between the countries and their exchange rate on tourism demand. In summary, this thesis demonstrates that actual national and international panel data enhance the credibility of the research and precisely determine factors that have a direct influence on tourism demand. A corresponding strategy of development and products are required as most tourists show the preference in advanced nations.

A Study on Prediction the Movement Pattern of Time Series Data using Information Criterion and Effective Data Length (정보기준과 효율적 자료길이를 활용한 시계열자료 운동패턴 예측 연구)

  • Jeon, Jin-Ho;Kim, Min-Soo
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.13 no.1
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    • pp.101-107
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    • 2013
  • Is generated in real time in the real world, a large amount of time series data from a wide range of business areas. But it is not easy to determine the optimal model for the description and understanding of the time series data is represented as a dynamic feature. In this study, through the HMM suitable for estimating the short and long-term forecasting model of time-series data to estimate a model that can explain the characteristics of these time series data, it was estimated to predict future patterns of movement. The actual stock market through various materials, information criterion and optimal model estimation for the length of the most efficient data was found to accurately estimate the state of the model. Similar movement patterns predictive than the long-term prediction is more similar to the short-term prediction of the experimental result were found to be.

Isolation of antibiotic resistant Lactobacillus spp from fermented milk and starters, and detection of transmissible R plasmids (유산균 발효유 및 starter에서 항생제내성 유산균 분리 및 전달성 R plasmids 분포조사)

  • Baek Kui-Jeong;Seo Heyng-Seok;Roh Young-Sun;Yang Hae-Dong;Hur Boo-Hong;Seo Lee-Won;Joung Dong-Suk;Song Hee-Jong
    • Korean Journal of Veterinary Service
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    • v.29 no.3
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    • pp.277-285
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    • 2006
  • Plasmids are covalently closed circular molecules of DNA that are stably inherited and replicate somewhat independently of the bacterial chromosome. Genes carried on plasmids can mediate a wide variety of important functions, including antibiotics (R plasmids) and heavy metals resistance, toxins production, cell penetration, iron chelation, complement resistance, and metabolic characteristics such as sucrose and lactose fermentation. Fifty strains of lactobacilli were isolated from 26 staters and 29 fermented milk products. They were classified 27 strains as Lactobacillus paracasei subsp paracasei, 11 stains as Lactococcus lactis subsp cremoris, 6 strains as L delbrueckii subsp lactis, 4 strains as L acidophius, and 2 strains as L delbrueckii subsp bulgaricus. All of these strains were examined for drug resistance and transferability of R plasmids. All of the isolates were sensitive to Am, C, CF, E, NB, P, T, and Te. But resistant to SXT 94% (47 strains), K 66% (33 strains), S 56% (28 strains), ENR 50% (25 strains), NOR 38% (19 strains) CIP 38% (19 strains), GM 16% (8 strains), and N 14% (7 strains), in order. And 32 different resistant patterns were found. The most frequently encountered patterns were CIP-ENR-K-NOR-S-SXT (5 strains). In vitro R plasmids transfer experiment, 57 antibiotic resistant strains which were not transfer to the recipient 2 Escherichia coli strains by conjugation, These results indicate that Lactobacillus in internal trade market' stater recognize R factor but transmissible R plasmid is not existed.

An Empirical Study on the Logistics Service Performance by Innovation Patterns (경영혁신 패턴 분석을 활용한 물류서비스성과에 관한 실증연구)

  • Lee, Sang-Hoon;Jeon, Jae-Woan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.2
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    • pp.402-415
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    • 2016
  • Most firms have great interest in their innovations, but they have no interest in the patterns of innovation. In particular, firms using the benchmarking method have a tendency to use the same method, which is very dangerous for management. Analyzing the innovation pattern is more important than to benchmark the leading company, because of the differences in the situation of all companies, such as an environment, competition, market, etc. This paper used the Grew & Scott's model, in which each firm has a different innovation pattern for valuable management performance. This study focused on service companies in logistics and aimed to contribute to the logistics industry

Exploratory Research on the Collaboration Patterns between Construction Firms using Social Network Analysis (사회연결망분석을 활용한 국내기업의 해외건설시장 공동진출 양상의 특성 분석에 관한 탐색연구)

  • Park, Hee-Dae;Jeong, Woo-Yong;Han, Seung-Heon
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2008.11a
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    • pp.382-387
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    • 2008
  • Current global construction market has grown at a dramatic expansion rate every year in connection with more market accessibility by foreign contractors. The market openness is largely due to globalization of world construction markets, rapid development of world-wide telecommunication technologies, the formation of collaborative acquisitions and joint ventures among contractors, development of regional Free Trade Blocks, and just name a few. This paper focuses on the formation of collaborative networks when expanding into new foreign markets. The social network analysis (SNA) is introduced to investigate a variety of the collaboration patterns and also their impacts on the performance. To this end, the collaboration cases of 600 international construction projects performed by Korean contractors since 1990 were collected and classified into firm's size, project types, collaboration modes, and performance levels using social network analysis. The results showed a direction in establishing business strategy associated with experienced or inexperienced contractors in international construction projects.

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Characteristics of Hijabista Fashion in Southeast Asia according to Social Media - Focused on Indonesia and Malaysia - (소셜 미디어를 통한 동남아시아 히자비스타(Hijabista)의 패션 특성 연구 - 인도네시아·말레이시아를 중심으로 -)

  • Park, Hyewon;Jang, Seonu
    • Journal of Fashion Business
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    • v.24 no.3
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    • pp.51-68
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    • 2020
  • In response to the South Korean government's trade diversification policy, the New Southern Policy, research is needed into the large population of Muslim fashion consumers who live there. Currently, veils worn by Muslim women are becoming a part of fashion collections as a style choice not just as a religious requirement. As such, the aim of this study is to investigate the fashion characteristics of the Southeast Asian Hijabistas. To do this we investigate the activities and the meanings of recent changes in the Southeast Asian fashion market, we also take a look at the Hijabistas who lead these changes. This is carried out as a theoretical study via literature review. In addition to this research, we selected 6 Hijabistas from Indonesia and Malaysia and analyzed 204 of their SNS photos. The results showed that the sportive image was popular; in terms of veils, hijabs and turbans were most popular; while pants and T-shirts dominated the clothing choices. Black and neutral colors were most popular but a variety of colors and tones were represented. In terms of fabric patterns, most of the choices were solid with no patterns. In terms of the types of veil used, in order of most to least popular were: hijabs covering down to the neck, turbans, and hijabs covering down to the chest. It was found that the Hijabista in Indonesia and Malaysia prefer an open, trendy fashion style. In conclusion, it was found that the Southeast Asia Muslim Fashion community are utilizing hijabs to express their identity not only as a Muslim and but also as a fashion item.

Performance Characteristics of PEMFC by flow Configurations and Operating Condition (유로형상 및 운전조건에 따른 고분자 전해질 연료전지의 성능 특성)

  • Lee, Pil-Hyong;Cho, Son-Ah;Han, Sang-Seok;Hwang, Sang-Soon
    • Proceedings of the KSME Conference
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    • 2007.05b
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    • pp.3440-3445
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    • 2007
  • For proton exchange membrane fuel cell, it is very important to design the flow channel on separation plate optimally to maximize the current density at same electrochemical reaction surface and reduce the concentration polarization occurred at high current density. In this paper, three dimensional computation model including anode and cathode domain together was developed to examine effects of flow patterns and operation conditions such as humidity and operating temperature on performance of fuel cell. Results show that voltage at counter flow condition is higher than that at coflow condition in parallel and interdigitated flow pattern. And fuel cell with interdigitated flow pattern which has better mass transport by convection flow through gas diffusion layer has higher performance than with parallel flow pattern but its pressure drop is increased such that the trade off between performance and pressure drop should be considered for selection of flow pattern of fuel cell.

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A Study on the Wearing Conditions and Satisfaction of Circular Knit T-shirts -Focus on 20 to 30 Year Olds- (환편니트 티셔츠의 착용실태와 만족도 연구 -20~30대 성인을 중심으로-)

  • Hwang, Song-Lee;Choi, Hei-Sun;Do, Wolhee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.37 no.4
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    • pp.514-525
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    • 2013
  • Korea International Trade Association (KITA) statistics show that the import of circular-knitted clothes has suddenly increased since 2000; they have increased by 24.5% each year for 2000-2004 and by 8.2% for 2005-2009. In addition, a Korea Apparel Industry Association survey showed that more than 50% of young people in their 20s and more than 40% of mid-aged people in their 30s-40s wore T-shirts (the most frequently worn and/or regarded as the most comfortable item among knit clothes). This portion is expected to increase in the future; however, insufficient research has been conducted on the characteristics of product development and production, knit T-shirt pattern development (Park, 2011), and consumer purchase patterns and behavior for knit clothes. The evaluation criteria for knit clothes generally vary depending on the demographic characteristics of consumers (Kotler & Armstrong, 2006). This study conducted a wearing trends survey for circular-knitted T-shirts and fit satisfaction based on 318 male and female consumers in their 20s-30s. The results provide information on the basic materials required to produce circular-knitted T-shirts.

Clustering Patterns in the Manufacturing Sectors of Japan

  • Carvajal, Carlos A.;Watanabe, Chihiro
    • Journal of Technology Innovation
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    • v.12 no.2
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    • pp.99-126
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    • 2004
  • Japan's economic clusters are characterized by their high level of diversity. In essence, Japanese economic clusters are not limited to single industries; they comprise numerous manufacturing industries and firms which cluster in specific heterogeneous economic zones, vice political boundaries. Japanese manufacturing sectors are showing an increased level of diversity, resulting in the spread of experience and knowledge among clusters, and sustained growth at the point of industrial structural transformation. Japan's Ministry of Education, Culture, Sports, Science and Technology (MEXT) proposed the creation of intellectual clusters for the purpose of promoting research and development(R&D) activities resulting in the stimulation and development of new technologies. The Ministry of Economy Trade and Industry (METI) is also proposing the industrial cluster plan with the aim to promote the local rebirth and revitalization of the Japanese industrial sector. This paper proposes a methodological analysis which will result in the integration of the two policies currently implemented by the Japanese government. If the current policies are not coordinated and integrated, artificial firms and sectors will continue to hamper innovation and discourage competitiveness, which will ultimately result in Japan's loss of economic opportunities within Asia. In the worst case, failure to act on current economic deficiencies illuminated in this paper could cost Japan its position as an Asian economic leader.

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