• Proceedings of the Korean Institute of Building Construction Conference
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• 2017.05a
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• pp.176-177
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• 2017

IN order to use it for high-temperature fire, Fireproof boards mainly composed of Ca and Mg used. Korea does not have a fireproof board for explosive high temperatuer fire in tunnel, and it is applying existing fireproof coating. However, when a high-temperature fire(1350℃)with explosion occurs, it can not sustain its strength and can not be destroyed to have fire resistance. Each year, more than 100,100tons of wastes are produced by using Ca as an oyster shell. In this study, we try to determine whether or not to reuse the heat-heated fireproof board.

• Journal of the Semiconductor & Display Technology
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• v.22 no.1
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• pp.99-103
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• 2023

NFT technology is mostly used to create digital drawings, characters, and items, and to simply buy and sell, but research and development to spread to various contents of NFT are somewhat marginal. Therefore, this study aims to solve the above-described problems. Depending on the exercise performance, it allows users to create and trade custom NFTs. In addition, it supports users to own customized digital works through exercise performance or to make money by trading them. Through it, the aim is to enhance users' positive interest in exercise and provide devices and methods for providing customized NFT creation and trading services that can help them develop exercise habits.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2005.11a
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• pp.361-364
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• 2005

Recently, many companies and consumers are using Internet to sell and buy goods and manage their businesses. And for most companies, they have Electronic Commerce system and Enterprise Resource Planning (ERP) system. But the two systems manage separately and the data are not integrative. So it is hard to mangement the system alike and the costs may be higher than the system which has intergrated information. ebXML-based Electronic Catalog (e-Catalog) can provide intergrated information. In this paper, we took a manufacturing industry company for example. We planned to construct the e-Catalog System, analyze the products of the company as well as design e-Catalog system using ebXML to connect EC with ERPs.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.29 no.3
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• pp.30-38
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• 2015

As products using LEDs are developed actively, also there has been large request for LED products that can replace traditional lamps like fluorescent lamps and metal halide lamps. But so far there is no proper standard that manufacturer can use and test it. As a result manufacturer can't develop retrofit LED lamps and sell it even they have technology. In this study, by analyzing control gear for fluorescent lamp that is currently used in market which is magnetic or electronic ballast, I'd like to develop proper test method by investigating compatibility between all-type control gear and LED retrofit products.

• Knowledge Management Research
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• v.12 no.5
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• pp.41-57
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• 2011

Social commerce is simply a kind of e-commerce by adopting SNS(Social networking service). It has been spread as SNS is widely used all over the world. In this situation, companies attempt to make the best use of social commerce to understand its advertising effect and to sell more products and/or services they provide. Although social commerce is a recent trend in Korea, it is necessary for companies to find a way to effectively adopt and utilize the social commence. Therefore, the focus of this study is to identify critical success factors for social shopping. We generated 40 items to measure 8 constructs. Using data collected from 300 respondents who have experienced both SNS and social shopping, we analyzed our model and its hypotheses. The analysis result shows that social shopping customers don't use SNS to get information when they purchase products and/or services in social shopping web sites.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 2003.11a
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• pp.283-288
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• 2003

This study has analyzed the environmental characteristics of Cheong-Ju city and the priority of residential choice elements by residents. The results of analysis are as follows. 1) The rate of housing supply in Cheong-ju city is low at 80.2%, concentrated on small sized apartments. Furthermore educational and traffic facilities are much insufficient. 2) While residential choice in Chong-ju is heavily characterised by educational surroundings, it is less affected by both economy such as housing prices, the value of investments and accessibility to public transportations, distance to working places. 3) It is affected by residents' general characters like the sell age, life cycle, education level, properties, home ownership, number of room and type of house they want.

• Journal of Korean Institute of Industrial Engineers
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• v.22 no.1
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• pp.105-114
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• 1996

Telecommunication services are typically offered with two-part tariffs which consist of the access charges and the usage charges. In the previous analyses of optimal two-part tariffs, consumers have been assumed to be final users. In this paper, we take the telecommunication service as an input factor which is purchased by business consumers. We proposed a two-stage market model in which the good in queston is produced by an upstream monopolist and purchased as an input by firms and they sell their final outputs in a downstream market. We derive the optimal two-part tariffs of inputs in the case of oligopolistic downstream market with heterogeneous downstream firms. It is shown that two-part tariffs are more desirable than uniform prices from a welfare standpoint. It is also shown that if an upstream monopolist earns positive profits, usage charge is less than marginal cost in the optimal two-part tariffs.

• Agribusiness and Information Management
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• v.1 no.2
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• pp.133-156
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• 2009

This study proposes development strategies for domestic e-commerce of agricultural products. So far, it grows quantitatively so fast, but because of lack of continuous management, it does not work properly. Previous studies have some outcome for vitalization of e-commerce, but they have limits that they neglect rapid changes of e-commerce circulation structures and practical problems farmers go through when they sell their products. This study deals with these problems more than previous. The first phase of this study analyzes two cases of overseas successful and failure e-commerce sites of agricultural products, for example, Wine.com and Webvan.com. The second phase analyzes As-Is and distribution structure of domestic e-commerce of agricultural products. Finally this study asserts three strategies for domestic e-commerce of agricultural products based on Web 2.0 environment.

• Journal of the Korea Safety Management & Science
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• v.4 no.2
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• pp.113-122
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• 2002

The marketing environment of recent security business has been changed as goods and service have been changed variously. Under this condition, the security corporations have been trying to have good relationship with customers and to have high gains as well. But the management of the customers in the bond marketing is not enough. Then, this paper suggests some methods to promote the CRM at bond brokerage in order to make profits in the security corporation. First, the customers will know the earning rate of the bond that they have and also they can analysis the difference selling the bond and keeping it until the due date. The developed bond management system analyzes customers' preference from questionaire which is responded by customers. It also can make customers actively sell and buy the bond through recommendations corresponding with customers' preference. Moreover, this paper suggests the video conference consulting system for close relationship with corporation and customers. We have tested this bond management system and we expect that this system activates the buying and selling of the bond that non-experts can easily invest bonds and the security corporations can increase profit.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.29 no.10
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• pp.1-6
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• 2015

As lamps using LEDs are developed actively, also there have been large request for LED lamps that can replace traditional lamps like fluorescent lamps and metal halide lamps. But so far there are no proper standards that manufacturer can use and test their lamps. As a result of this, manufacturers are not only unable to develop LED lamps but also sell it even though they have technology. In this study, It is proposed that proper test method by investigating compatibility between all-type control gear and LED lamps by analyzing control gear for fluorescent lamp such as magnetic or electronic ballast that is currently used in the market.