• Journal of Korean Ophthalmic Optics Society
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• v.11 no.3
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• pp.249-258
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• 2006

There are many functions of glasses. Not only as a medical instrument but also for decorative purpose and individuality as a mean of expression. The concept of glasses applied according to various purposes and use. Following the designers' point of view, the most important research task is to make products substantial and convenient rather than external beauty after analysis problems and the needs of customers. Because customers ask for the best quality of design all the time. The best design of glass includes essential conditions like; creativity, satisfaction, convenience of use, identity. These conditions are common elements of glasses in both domestic and foreign markets. Also they can be a catalyst to stimulate glasses industry in Korea. First of all to study tho parts of glasses "End Piece", it is essential to consider for a better design. Because it adjusts the center of glasses weight balance for user's comfort. Since many brands are imitated, the significance of "End piece" is of a great importance resulting in a more successful competitiveness.

• Journal of the Korean Institute of Landscape Architecture
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• v.30 no.4
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• pp.66-73
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• 2002

This landscape design proposal was presented to a design competition for the New Government Buildings of Dalseong-gun which was held by the municipal authority of Dalseong-gun in June, 2002. The site is located at 1313 Gumpo-ri, Nongong-eup, Dalseong-gun, Daegu Metropolitan City and has an area of 50,000$m^2$. The judging criteria for the landscape design set by the Dalseong-gun could be articulated as follows : an environmentally friendly design which respects the surrounding n a locale which functions as a community center of Dalseong-gun, a resting place for the welfare of its employees and visitors, and finally a place with diverse landscape elements reflecting the individual identity of each facility. The main design concepts of this project could be summarized as follows : an environmentally friendly design which respects and utilizes the existing natural landscape resources, a design which features a harmony of nature with architecture and exterior space with interior space, and a design which balances esthetic form and practical function. This design consists of four major outdoor spaces ; the lawn, the entry plaza, a pine grove, and a deck area on the third floor. The multi-purpose lawn area near the main entrance area can be used for flea markets, outdoor weddings, and picnics for its neighbors. The adjacent plaza and parking lots can be unified as one space in case of large events. The entry plaza has three axes. Each of them represents the Assembly, the Administration, and the Culture. A big circle in the paving pattern unifies the three individual axes. A group of Zelkova trees was introduced to reflect local flavor. The existing pine grove was preserved as a symbolic 'park' for the Gumpo district. The outdoor amphitheatre within the grove was introduced by utilizing the existing topography, The flow of 'nature'on the deck area was designed to connect Mt. Gumkae with the 'city'. It is a comfortable resting place for its employees and visitors.

• Journal of the Korean Society of Manufacturing Technology Engineers
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• v.18 no.3
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• pp.285-293
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• 2009

Thermal infrared cameras have been conducted actively in various application areas, such as military, medical service, industries and cars. Because of their characteristic of sensing the radiant heat emitted from subjects in the range of long-wavelength($3{\sim}5{\mu}m$ or $8{\sim}12{\mu}m$), and of materializing a vision system, when general optics materials are used, they don't react to the light in the range of long-wavelength, and can't display their optic functions. Therefore, the materials with the feature of higher refractive index, reacting to the range of long-wavelength, are to be used. The kinds of materials with the characteristic of higher refractive index are limited, and their features are close to those of metals. Because of these metallic features, the existing producing method of optical systems were direct manufacturing method using grinding method or CAD/CAM, which put limit on productivity and made it difficult to properly cope with the increasing demand of markets. GASIR, a material, which can be molded easily, was selected among infrared ray optics materials in this study, and the optical system was designed with two Aspheric lenses. Because the lenses are molded in the environment of high temperature and high pressure, they require a special metallic pattern. The metallic pattern was produced with materials with ultra hardness that can stand high temperature and high pressure. As for the lens mold, GMP(Glass Molding Press) of the linear transfer method was used in order to improve the productivity of optical systems for thermal infrared cameras, which was the goal of this paper.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2005.05a
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• pp.904-913
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• 2005

This paper deals with an integrated problem of inventory control and dynamic pricing strategies for a commodity with price and sales-period dependent demand pattern, where a seller and customers have complete information of each other. The problem consists of two parts; one is each buyer's benefit problem which makes the best decision on price and time for buyer to purchase items, and the other one is a seller's profit problem which decides an optimal sales strategy concerned with inventory control and discount schedule. The seller's profit function consists of sales revenue and inventory holding cost functions. The two parts are closely related into each other with some related variables, so that any existing general solution methods can not be applied. Therefore, a simplified model with single seller and two customers in considered first, where demand for multiple units is allowed to each customer within a time limit. Therewith, the model is generalized for a n-customer-classes problem. To solve the proposed n-customer-set problem, a dynamic programming algorithm is derived. In the proposed dynamic programming algorithm, an intermediate profit function is used, which is computed in case of a fixed initial inventory level and then adjusted in searching for an optimal inventory level. This leads to an optimal sales strategy for a seller, which can derive an optimal decision on both an initial inventory level and a discount schedule, in $O(n^2)$ time. This result can be used for some extended problems with a small customer set and a short selling period, including sales strategy for department stores, Dutch auction for items with heavy holding cost, open tender of materials, quantity-limited sales, and cooperative buying in the on/off markets.

• Journal of Internet Computing and Services
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• v.6 no.3
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• pp.71-84
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• 2005

Recently, the expert call center solution has become the center of interest, since finance and tele-marketing system, which is focused on a communication industry, have been increasing, Specially, the call center market is growing up with a supporting Caller-ID for a cellular phone in Korea, In the present, although large size companies are developing expensive solutions and instruments to service only for the big companies, there little solutions for SOHO markets, Therefore, in this paper we have shown a design and an implementation of a CTI system which is capable of in/outbound call processing by using CTI, and providing stable services by linking the customer's DB. And these functionalities have become possible by integrating functions of PBX and the computer control of the PBX. First, we have constructed call flows and analyzed packets for the standard communication through the PBX in call. Then, we have designed and implemented a middleware which linked a call between a client and a customer. Finally, we have constructed a database module for applying the CRM technology to the management of customer's contents.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.10 no.8
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• pp.1366-1372
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• 2006

After the import liberalization of agricultural products, The Imported agricultural products rapidly increased market share of domestic agricultural products. But Imported agricultural products include various agricultural chemicals and food additives. In order to improve competitiveness in domestic markets of farmhouses and to secure food safety, the farmers needs to introduce Systematic support and various system. In this paper, established system that use Monitoring technology, to inform production information and management information about agricultural products to consumer by real time. Therefore unused analog camera such as CCTV(Closed-Circuit Television) for real time Monitoring. This system Used web camera that offer picture quality that is good than CCTV at place that consists network without distinction in the place. An advantage of real time Monitoring system designed multi-vision interface showing multi images on single screen and, for the purpose of the improvement in efficiency, the functions of saving images and of scheduling the time to save the images.

• Journal of Information Technology Services
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• v.15 no.2
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• pp.169-184
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• 2016

Smartphone use is rapidly spreading due to the advantage of being able to connect to the Internet anytime, anywhere--and mobile app development is developing accordingly. The characteristic of the mobile app market is the ability to launch one's app into foreign markets with ease as long as the platform is the same. However, a large amount of prior research asserts that consumers behave differently depending on their culture and, from this perspective, various studies comparing the differences between consumer behaviors in different countries exist. Accordingly, this research, which uses online product reviews (OPRs) in order to analyze the cultural differences in consumer behavior comparatively by nationality, proposes to compare the U.S. and South Korea by selecting ten apps which were released in both countries in order to perform a sentimental analysis on the basis of star ratings and, based on those ratings, to interpret the sentiments in reviews. This research was carried out to determine whether, on the basis of ratings analysis, analysis of review contents for sentiment differences, analysis of LDA topic modeling, and co-occurrence analysis, actual differences in online reviews in South Korea and the U.S. exist due to cultural differences. The results confirm that the sentiments of reviews for both countries appear to be more negative than those of star ratings. Furthermore, while no great differences in high-raking review topics between the U.S. and South Korea were revealed through topic modeling and co-occurrence analyses, numerous differences in sentiment appeared-confirming that Koreans evaluated the mobile apps' specialized functions, while Americans evaluated the mobile apps in their entirety. This research reveals that differences in sentiments regarding mobile app reviews due to cultural differences between Koreans and Americans can be seen through sentiment analysis and topic modeling, and, through co-occurrence analysis, that they were able to examine trends in review-writing for each country.

• Journal of the Korea Safety Management & Science
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• v.10 no.3
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• pp.167-181
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• 2008

There are lack of labour and increase in logistics costs due to rapid change in logistics environments and the demand for logistics. The reality is that over spending on logistics costs are getting worse due to lack of logistics standardization. An example will be excessive logistics costs caused by unsatisfactory use of logistics equipments in wholesale markets. The logistics efficiency is falling due to delays in using logistics equipments and standardization. Therefore, there needs standardization of logistics functions and unit of handling in each stage from packing, unloading, storage, transporting, logistics information and needs logistics standardization on equipments, machineries used for the above. Standard unified with standardization is called specification and if standardization is applied broadly in manufacturing or processing, inspection than each process in terms of production can be managed rationally and labour skills will improve and product quality will be evenly maintained and compatability of each part in terms of assembly will be maintained thus materials and labour could be saved thus results in increasing productivity and lowering production costs. Also, if it is applied in industry at state-level then there will be rationalization in consumption in circulation as in purchase of raw materials, sales of products, purchase of products by consumers and contribute in improving compatibility and fair transactions. This paper is aimed to help in first solving factors affecting the most in improving logistic efficiency among unit load system and logistic hollowization, standardizing logistics base, standardizing logistics information. The study conducted surveys on limited companies but hope that in the future the target companies can be divided further into types, industries and conduct more demonstrative analysis.

• The Journal of Society for e-Business Studies
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• v.12 no.4
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• pp.53-69
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• 2007

The convergence of telecommunications and broadcasting is representative of many innovative technologies in the digital environment. It has recently been emphasized as an alternative solution to overcome the on-going saturation of the telecommunications and broadcasting markets. Despite this effort, however, growth of the market and its related services cannot reach prior expectations due to lack of understanding on the real user-end. Telecommunications technology used to serve its instrumental purpose and broadcasting services usually support entertainment functions which in themselves have an inherent value. Our research questions what factors influence users' attitude and decision-making when it comes to using telecommunications-broadcasting convergence services. The research model of this paper proposes intrinsic motivator focusing on hedonic value, extrinsic motivator having utilitarian values, and perceived control as internal and external conditions. To verify our model empirically, we selected the DMB technology which is a good example of distinctive telecommunications-broadcasting convergence service.

• Journal of the Korea Fashion and Costume Design Association
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• v.11 no.3
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• pp.111-124
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• 2009

Since the graphics of fashion items as a means to deliver messages suggest practical sections of the society while showing individual ideas and identity, they have values of promotion to attract attention by manifesting an effective function during the process of delivering intentions and the signification. Accordingly, this study aims to investigate the characteristics expressed with graphics shown on T-shirts of casual wear out of all the fashion items and analyze the social messages reflected on them. Using the Barthes' system of denotation and connotation, distinguished symbolic functions and meaning among graphics were analyzed through the analysis of expression methods of the graphics as the denotation of initial meaning and connotation of secondary meaning. Each casual brand has led the sale of casual markets by appealing consumers with graphic items with characters printed such as various kinds of animals and symbols or lettering printed such as hieroglyph and logos, as various expressive methods and social significance as well as a effective communicative means of graphics. As examined above, graphics expressed on fashion items have an informative characteristic and a persuasive characteristic in the aspect of contents, which has a single value as a communicative characteristic. Those characteristics have developed into the fashion graphic actively reflecting a designer's conviction, values, feelings and identity by acting on social issues and publicness. That is, in the age of information, effective messages delivered through the fashion graphic to the public have contributed to the establishment of an appropriate atmosphere of visual culture while maximizing the role and function as a social significance.