• 대한안전경영과학회지
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• 제12권4호
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• pp.41-51
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• 2010

This paper describes the development of various lighting equipment adapting Ultra Constant Discharge Lamp that has newly been on commercial supply in the market. Meeting the required conditions of lighting equipment, various types of UCD Lamp equipment with excellent performances could be successfully developed. In order to provide a guideline for the economical lighting product selection, the analyzed data comparison between Hi-pressure Sodium Lamp which has been the most popular lamp for street lighting and UCD Lamp is provided. The conclusions of the study are made as follows; (1) The performance measurement result of UCD Lamp shows excellent Luminous Efficacy as 108Lm/W, daylight-like Color Rendering Index as 90Ra, and the best operating temperature range as $-50^{\circ}C{\sim}+85^{\circ}C$. Comparing to the Hi-pressure Sodium Lamp, UCD could be evaluated as much superior products. (2) In an assembled status with the lighting fixture (Type STB형-60W), UCD Lamp was tested OK for one hour duration at the temperature range form $-50^{\circ}C$ to $+85^{\circ}C$ and the humidity of 98%. The operation at the extremely low temperature can be an excellent feature to enable the export to the cold temperature regions such as Northern Europe and Russia and the specific applications for defense systems and special industry. (3) As UCD Lamp is a genuine Korea made product following Energy-saving and Eco-friendly policy, it should be appreciated as one of the best $CO^2$ reduction Green product.

• 한국해양공학회지
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• 제30권6호
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• pp.520-525
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• 2016

In this study, a mixture of polypropylene fibers and glass fibers were used to weave polypropylene/glass fiber-reinforced composite panels with characteristics such as highly elongated short fibers, high ductility, anti-fouling, and hydrophobicity as a result of a directional property. Mechanical and environmental tests were carried out with specimens fabricated with this composite panel, and its applicability to shipbuilding and ocean leisure industries was evaluated through a comparison with existing glass fiber-reinforced composite materials. The results of this experiment verified the excellence of the polypropylene/glass-mixed woven fiber-reinforced composite material compared to the existing glass fiber-reinforced composite material. However, the forming process needs to be changed to improve the weak interfacial bonding, and the properties of the composite material itself could be improved through mixed weaving with other fibers after development. Maximizing of the advantages of the polypropylene fibers and overcoming their shortcomings will improve their applicability to the shipbuilding, ocean leisure, and other industries, and increase the value of polypropylene fibers in the composite material market.

• 한국한의학연구원논문집
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• 제7권1호
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• pp.77-84
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• 2001

A survey was conducted to investigate the attitudes of pharmaceutical companies toward the status and permission of R & D of herbal products. The survey's results showed that some of them(42.9%) was conducting the R&D, and others(57.1%) were not conducting. As the results of analysis on the reason of R&D conducting, some of them(42.3%) answered that R&D of herbal products is more effective and powerful than these of synthetic products. And 23.1% answered that the cost of R&D is low and the time required is short. And another 23.1% answered that it has marketability and competitive power. As the results of analysis on the marketability of herbal products in Pharmaceutical Market, most of them(78.6%) answered that it seems enough. As the result of the comparison of synthetic drug and herbal products, the proportion of R&D investment on herbal products was lower than synthetic products in the preclinical study, the first clinical study and the second clinical study, and higher than in the third clinical study and the NDA. And the periods of R&D was long in most procedure except synthesis of new materials. As the results of analysis on the recognition of related regulation, most of them(73%) was yes. And 35.2% of the subjects thinks it enough.

• 융합정보논문지
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• 제8권2호
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• pp.91-103
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• 2018

리팩토링은 기존 레거시 코드에 대한 품질을 확보하기 위한 공학적 기술로서, 프로그램의 기능은 변하지 않으면서 내부 구조를 개선하는 작업이다. 다양한 오픈 소스 소프트웨어가 재사용되면서, 기술적 이유 또는 시장 요구로 인하여 프로그래밍 언어 변환을 통한 소스 코드 재사용이 점진적으로 요구되고 있다. 이러한 상황에서 에너지 효율성을 고려하는 언어 변환 리팩토링 기법은 임베디드 소프트웨어 개발의 생산성은 물론 품질 향상을 위한 중요한 수단으로 여겨지고 있다. 본 논문에서는 기존에 제시된 에너지 절감형 리팩토링 기법에 추가하여 프로그래밍 언어의 문법 및 구조의 비교와 매핑을 통해 다른 언어로 변환하는 코드 리팩토링 기법을 제시하였다. 제안하는 리팩토링 기법의 활용은 소프트웨어 개발 언어의 환경변화에 대처하고, 기존 코드의 재사용을 높임으로써 신속한 소프트웨어 개발 및 품질 향상을 통한 제품의 경쟁력 향상을 기대할 수 있다.

• Elastomers and Composites
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• 제21권4호
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• pp.309-322
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• 1986

This survey reports on the extensive examination of the qualify of 14 jogging and tennis shoes separately, availavable in the domestic market, Both jogging and tennis shoes were catagorised in two groups, namely the general goods(less expensive ones) and the exclusive goods(expensive models). The detailed classification are shown below; The domestic products meet the general purpose just as that of the foreign products. Due to the adhesion technology, the domestic tennis shoes consist of rubber sole with natural leather upper;In fact, the desirable combination, as foreign products, must be polyurethane/natural leather. The expensive models were heavier than the less expensive ones. The greater weight difference of right and left shoes are shown in the expensive models than that of the less expensive ones. The moisture absorption ratio of the expensive model is far superior in comparison with the less expensive model. The reason is identified by the material supplyed to produce the expensive model consisted of the natural leather and proper parts. The abrasion resistance of the expensive models were excellent that of the less expensive ones, because the rubber soles were showed the properties better than polyurethane sole which was used in the less expensive model.

• 한국정보시스템학회지:정보시스템연구
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• 제21권4호
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• pp.155-183
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• 2012

Means-Ends Network model was used to identify factors of means objective(means supplied by vendor) and fundamental objectives(purchasing motivations) for purchasing decision-making structure and dimensions of customer values on purchasers of internet shopping mall in Korea and China. In Means-Ends Network 6 factors(shopping travel, shipping assurance, vendor trust, online payment, product choice, and recommender systems) were found as a means objectives and 3 factors(shopping convenience, internet environment, customer support) as a fundamental objectives of shopping. However the results of hypotheses test for Means-Ends Network show some important differences between two countries. Something important to notice here is that Chinese customers shopping in China recognize shipping assurance factor and vendor trust factor as important factors satisfying all fundamental objectives unlike as in the case of our country. As these two factors are attribution factors responsible to the sellers, it is identified that customers do not trust the sellers and sellers have not met the expectations of customers. Therefore, these results show that the seller efforts assuring the reliability of the seller themselves, such as conducting its own compensation scheme are more important rather than the establishment of the guarantee institution to guarantee reliability and delivery assurance of sellers and implementation of legal and institutional apparatus such as the settlement of e-commerce licence system. Though this study presents such an important marketing implications, it can be pointed out that the limits are this research was done on the general Internet shopping malls without considering the Internet shopping mall types of diversity, the survey was designed around the student samples for convenience of the investigation because it was an international survey and the collected data has been limited to the western coast cities, such as China's Beijing, Shanghai, and Dalian.

• 한국빅데이터학회지
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• 제3권1호
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• pp.1-12
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• 2018

초기 온라인 쇼핑몰이 등장할 때부터 지금까지 BEST 100은 모든 쇼핑몰 웹사이트의 핵심 기능으로 제공되고 있다. BEST 100은 소비자들이 한눈에 인기 상품들을 확인할 수 있기 때문에 쇼핑몰의 매출 등에 미치는 영향이 높지만 온라인 쇼핑 선행 연구에서 BEST 100과 관련된 연구는 거의 이루어지지 않고 있다. 따라서 본 연구에서는 현 온라인 쇼핑몰 11곳을 대상으로 선정하여 쇼핑몰별 판매 특징을 분석하였다. 연구 방법으로 각 쇼핑몰 웹 사이트의 BEST 100의 구성요소인 판매문구, 가격, 무료배송의 유/무 확인을 크롤링 하여 탐색적 자료 분석 기법(EDA)을 활용하였다. 분석 결과 쇼핑몰 11곳의 종합 평균 가격은 72,891.41원으로 나타났으며 상품 가격이 저렴할수록 무료배송 비율이 낮음을 확인하였다. 가격 이외에 판매문구에서는 텍스트 마이닝을 통해 8개의 카테고리로 구분하였다. 가장 많은 카테고리는 fashion 부분이었으나 카테고리의 설정이 제품 속성이 아닌 마케팅 문구를 분석한 점에 의의가 있다. 본 연구는 EDA를 활용하여 현 온라인 시장 흐름을 파악하고 향후 방향을 제시하는데 시사점이 있다.

• 디지털융복합연구
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• 제11권10호
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• pp.669-677
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• 2013

중국전통보드게임은 중화민족의 전통적인 놀이문화로써 수천 년에 달하는 역사를 가지고 있으나, 게임 룰에 변화가 없고 고정적이어서 지금까지 주요 선호 층이 중 노년층에 집중되어 있다. 수십 년 전에 개량 중국장기가 출시되었는데 장기판, 장기 쪽, 게임 룰에 변화를 시도한 바 있다. 본 논문은 중국 전통 장기게임들에 대해 조사해 보았으며, 개량 사례를 조사하였으며 또한 중국장기의 게임의 재미요소를 증진시키고자 만들어 졌었던 변형된 장기게임들에 대해 고찬하였으며, 개선방안을 제시하였다.

• The Journal of Advanced Prosthodontics
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• 제8권1호
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• pp.16-20
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• 2016

PURPOSE. Polymer infiltrated ceramic network (PICN) materials, also called hybrid ceramics, are new materials in dental market. The manufacturer of the PICN material VITA Enamic suggests 3 different finishing procedures for this new material. In the present study, surface roughness and color differences caused from different finishing procedures of VITA Enamic were investigated. MATERIALS AND METHODS. 120 specimens were prepared in dimensions $2{\times}10{\times}12mm$ from VITA Enamic hybrid ceramic blocks with 'high translucency' and 'translucency 2M2' shades. The specimens were divided into 8 groups. For each group, different finishing procedures suggested by the manufacturer were performed. Surface roughness values were determined by a tactile portable profilometer. Color changes were evaluated using a clinical spectrophotometer. The data were analyzed using one-way ANOVA and Tukey's post-hoc comparison. The significance level was set at ${\alpha}=0.05$. RESULTS. The roughest surfaces were observed in Glaze Groups. Their surface roughness values were similar to that of the control group. Clinical Kit and Technical Kit groups did not show a statistically significant difference regarding surface roughness (P>.05). The largest color difference regarding ${\Delta}E_{00}$ was observed in Clinical Kit finishing groups. There were also statistically significant color changes between the groups (P<.05). However, all the groups showed clinically acceptable color change (${\Delta}E_{00}$<2.25) except Clinical Kit Groups (${\Delta}E_{00}$>2.25). CONCLUSION. Within the limitations of the present study, it may be suggested that finishing the VITA Enamic restorations by Technical Kit instead of Glaze and Clinical Kit gives better clinical performance in regard to surface roughness and shade matching.

• 복식문화연구
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• 제19권4호
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• pp.794-804
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• 2011

With increases in the amount of spare time by many and with increased social interest in health, the sportswear market is steadily growing. Thus, sportswear companies are putting more effort into developing their websites for differentiation strategies. It is possible to deliver effective images with the use of proper colors in websites. This study aimed to analyze the colors of websites of sportswear brands' and to compare their characteristics. Thirty-seven brands were chosen and classified into three groups: active sportswear, outdoor wear and golf wear. 168 color samples in total as main colors, sub-colors and accent colors were collected from the first screen of each websites. The colors were analyzed by Musell's 10 hues and by the 12 tone classifications of PCCS. The results indicated that white is the color most often used as the main color and sub-color on these websites. There were differences among the colors of the three groups. Both active sportswear and outdoor wear have a similar tendency in terms of their use of colors and tones, while golf wear is different from these two groups. Active sportswear websites and outdoor wear websites frequently used red and vivid, bright tones for their accent colors. In comparison, Green Yellow and light grayish tones were most commonly used as accent colors in golf wear websites.