• Journal of Energy Engineering
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• v.29 no.3
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• pp.86-90
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• 2020

This paper examines a blockchain network-based transaction system using location proofing in power direct transactions between networked energy clouds, energy communities, and prosumer machines participating in smart cities. It utilizes location-based blockchain network technology, which enables long-distance travel with recharging by power purchases during autonomous movements, autonomous electric vehicles that can purchase and sell electricity, and solar street lights that can be produced and sold in fixed form. In addition, it is possible to provide optimum power transaction matching and settlement reliability between machines without human intervention in power transactions between electric chargers. It also introduces a business-to-object business model between autonomous machines that exist in multiple and different spaces and through energy clouds that are expected to be scattered with various transaction prices, policies, and incentives.

• Journal of Korean Library and Information Science Society
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• v.41 no.2
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• pp.127-145
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• 2010

Outsourcing, importing of publishing metadata and revitalizing copy cataloging have reduced importance of traditional cataloging. Request of interoperability between other communities and business integration of related system also have changed the meaning of library catalog. Furthermore, newly declared principle and rules are totally different to existing AACR, MARC, measures to cataloging education for next generation seems to be urgently needed. In this study, firstly put together a series of discussion about future cataloging and new role of cataloging librarian, and secondly basis on it, suggest direction of cataloging education course which divided two sectors. One is for students who are undergraduated, and another is for current cataloger at working level. In basic training, it should contain principle of knowledge organization and diverse resources and its relationship, encoding scheme and its practice. The other hand, in re-education training, it should include that re-recognition about new concept of bibliographic world, changing vocabulary and encoding scheme, furthermore metadata scheme about diverse resources which library have accepted, and its integration.

• Journal of the Korean association of regional geographers
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• v.19 no.4
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• pp.654-667
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• 2013

This paper aims to examine the characteristics of social enterprises in Jinju City, Korea and to provide policy recommendations for promoting the competitiveness of local social enterprises. There are 11 social enterprises in Jinju City that are certified by central and local governments. The survey shows that the majority of social enterprises in Jinju City are based on the local community and their activities are public in nature, including supporting the self-reliance of local under-privileged class or contributing to local socio-economic development. However, it is also revealed that local social enterprises have a great deal of difficulty in making a profit. Particularly, they have much trouble with sales of their services and products, largely due to the vulnerability of marketing and financial ability. This means that the local social enterprises are not capable of being viable in a severe market competition. Thus I suggest some important policy recommendation for invigorating local social enterprises, including the reform of governance system, expansion of public purchase of the products made by local social enterprises, and the facilitation of inter-organizational networking among local social economy agents.

• Journal of Korea Game Society
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• v.11 no.6
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• pp.115-125
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• 2011

Recently, a sharp increases of users of smartphone is not only cause an rapid growth smartphone-games market, but also secured it's position as a high value market. thus have to begets a multilateral study to the smartphone of newly-rising. however the earlier studies were researched previous smartphone, despite extended research is needed for smartphone-games. therefore the study's purpose is to draw a main factors it has a decisive effect for recommendation and sustainable-usage through recognizing the cause-and-effect relationship with purchase intention, purchase action, satisfaction, recommendation, and sustainable usage that based purchase-effect-factors of smartphone-games. for this study the questionnaire of 293 was taken. and structural equation model was adopted to analyze this study.

• The Journal of the Korea Contents Association
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• v.8 no.2
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• pp.132-139
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• 2008

The aim on this thesis is to develop virtual construction designing experience web-site in order to help non-professional to predict the actual construction working result by self-construction design, provided by virtual reality program, sharing knowledge of architectural design and materials on internet to solve certain problems. The way of study is using case of virtual reality technology which is practically using in architecture era recently; in construction design, deducting realizable virtual reality technology of limitation and its solution; analyze case of construction designing program which is currently used by professionals; constitute required essential functions as UI(User Interface) when constructing. Followed by result of study, as a proposal, in service, technical, and UI sectors are the way to construct its objectives for internet based virtual construction experience web-site.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2006.05a
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• pp.829-832
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• 2006

The word P2P implies significant changes in current business dynamics. The P2P service enables individuals to be connected to the Internet for the direct provision of information and even downloads from one another without the conventional method of passing through search engines. This can be utilized to extend the path of retrieving information from limited web sites to personal and enterprise databases. That is, it is now possible for individuals to manage their own information on a national or global scope, share various information with other members, form communities of users interested in sharing homogeneous information, and utilize remote conference and remote education using groupware.

• Journal of Digital Convergence
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• v.20 no.2
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• pp.47-56
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• 2022

With the advent of online platforms, individuals have been able to trade small resources, such as a room, in the market. However, as there is no clear regulation on these economic activities, various side effects have emerged. Accordingly, the government reestablished related policies to resolve the unintended consequences of these economic activities. However, the policy has not been implemented yet, and many participants do not comply with the policy. Therefore, this study intends to examine their perceptions in detail. For this purpose, a text mining technique was applied. Posts and comments from major online communities were collected. By applying the topic modeling technique, 5 topics were derived. Compliance with the government's policy is a voluntary decision. Therefore, it is necessary to carry out an in-depth understanding of the policy target. Therefore, based on this study, it is expected that in the future, methods to induce them to conform to policy can be discussed in detail.

• Journal of Intelligence and Information Systems
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• v.28 no.1
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• pp.107-129
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• 2022

It is important to preempt new technology because the technology competition is getting much tougher. Stakeholders conduct exploration activities continuously for new technology preoccupancy at the right time. Gartner's Hype Cycle has significant implications for stakeholders. The Hype Cycle is a expectation graph for new technologies which is combining the technology life cycle (S-curve) with the Hype Level. Stakeholders such as R&D investor, CTO(Chef of Technology Officer) and technical personnel are very interested in Gartner's Hype Cycle for new technologies. Because high expectation for new technologies can bring opportunities to maintain investment by securing the legitimacy of R&D investment. However, contrary to the high interest of the industry, the preceding researches faced with limitations aspect of empirical method and source data(news, academic papers, search traffic, patent etc.). In this study, we focused on two research questions. The first research question was 'Is there a difference in the characteristics of the network structure at each stage of the hype cycle?'. To confirm the first research question, the structural characteristics of each stage were confirmed through the component cohesion size. The second research question is 'Is there a pattern of diffusion at each stage of the hype cycle?'. This research question was to be solved through centralization index and network density. The centralization index is a concept of variance, and a higher centralization index means that a small number of nodes are centered in the network. Concentration of a small number of nodes means a star network structure. In the network structure, the star network structure is a centralized structure and shows better diffusion performance than a decentralized network (circle structure). Because the nodes which are the center of information transfer can judge useful information and deliver it to other nodes the fastest. So we confirmed the out-degree centralization index and in-degree centralization index for each stage. For this purpose, we confirmed the structural features of the community and the expectation diffusion patterns using Social Network Serice(SNS) data in 'Gartner Hype Cycle for Artificial Intelligence, 2021'. Twitter data for 30 technologies (excluding four technologies) listed in 'Gartner Hype Cycle for Artificial Intelligence, 2021' were analyzed. Analysis was performed using R program (4.1.1 ver) and Cyram Netminer. From October 31, 2021 to November 9, 2021, 6,766 tweets were searched through the Twitter API, and converting the relationship user's tweet(Source) and user's retweets (Target). As a result, 4,124 edgelists were analyzed. As a reult of the study, we confirmed the structural features and diffusion patterns through analyze the component cohesion size and degree centralization and density. Through this study, we confirmed that the groups of each stage increased number of components as time passed and the density decreased. Also 'Innovation Trigger' which is a group interested in new technologies as a early adopter in the innovation diffusion theory had high out-degree centralization index and the others had higher in-degree centralization index than out-degree. It can be inferred that 'Innovation Trigger' group has the biggest influence, and the diffusion will gradually slow down from the subsequent groups. In this study, network analysis was conducted using social network service data unlike methods of the precedent researches. This is significant in that it provided an idea to expand the method of analysis when analyzing Gartner's hype cycle in the future. In addition, the fact that the innovation diffusion theory was applied to the Gartner's hype cycle's stage in artificial intelligence can be evaluated positively because the Gartner hype cycle has been repeatedly discussed as a theoretical weakness. Also it is expected that this study will provide a new perspective on decision-making on technology investment to stakeholdes.

• Journal of the Korean association of regional geographers
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• v.22 no.3
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• pp.499-514
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• 2016

Social enterprise is defined as a sort of companies that pursue both publicity and profitability. It is usual that their business activities and viability are dependent upon localized resources in terms of a labor market, raw material procurement and sales market. Also, the characteristics and viability of social enterprises based on local resources within the framework of social economy policy. The social economic policy in Korea is generally treated as means of local developments. This paper aims to examine the localness and socio-economic foundation of social enterprises which are located in the west of Gyeongnam province in Korea and to provide policy recommendations for promoting local resource-based social enterprises. The selection of the case study firms was chosen by considering various factors such as the viability of the firm, location of a company and the types of organization. The research result shows that most of local social enterprises had a viability and profitability to effectively utilize local resources. But it is claimed that the government policy for promoting local social enterprises reveals some limitations to promoting effectively local social enterprises. First, it is necessary to limit the qualification of applying to the government support program. Second, financial support should be changed from hardware-centered programs to software-centered programs such as training and education for human resource development and the business consulting. Finally, it is necessary for the government policy to focus on follow-up programs for firms which are no more capable of receiving the government financial support. For these firms, the government policy needs to focus on facilitating activities of cooperation between local universities and local social enterprise.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.6
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• pp.3478-3489
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• 2014

Because the increased number of Internet users and the common use of IT technology via the expansion of domestic IT infrastructure have increased the web site use of companies, Internet users have begun to experience a range of online websites. In a digital environment, entrepreneurial companies who have limited resources will require effective management by analyzing the critical factors of the website quality assessment and focusing their resources to seize the market because the website quality built in the company directly affects the satisfaction and purchase activity of the customers. In this study, a total of 523 surveys from the customers visiting online websites of the entrepreneurial companies were collected to analyze the factors between the influencing factors and satisfaction and purchase intention using the ServQual method in the AMOS 18.0 program. This analysis showed that the customers visiting the website are satisfied with the factors of tangibility, reliability and responsiveness of visited websites, and the factor of community, which indicates that the level of customer activity in the web sites is related significantly to the customers' purchase intentions.