• Journal of the Korean Society for Aviation and Aeronautics
• /
• v.23 no.4
• /
• pp.82-88
• /
• 2015

Airframe maintenance is regarded the most important maintenance action in airlines as the aircraft is the most valuable asset in their operation though the volume of airframe maintenance is the last in MRO market. In the selecting process of airframe MRO provider many kinds of evaluation criteria should be considered such as quality, expenses, TAT, capability, and customer support. This paper will suggest the way to select the airframe MRO in airlines and MRO business sectors using AHP.

• Journal of the Korean Society for Aviation and Aeronautics
• /
• v.23 no.4
• /
• pp.66-72
• /
• 2015

Recently due to shortage of pilots from aviation developed countries such as America, Japan and etc, not even regional airlines but also major airlines are facing difficulties of pilot shortage. Through statistic data, ICAO and Boeing Company are predicting that roughly 8 thousands of new pilots will be short per year. Therefore, to solve this pilot shortage, countries are searching solutions like reducing air route, and extending regular retirement. This study analyzes domestic pilot supply market and compares systems of pilot training between the domestic system and the system of America and Japan. From the comparison, the study has deducted improvements for the role of domestic certification system, ATO(Approval of Training Organizations) operation, and related organizations including the government.

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2002.10a
• /
• pp.132-136
• /
• 2002

Optical collimating lenses are play a role as maintenance parallel light and as a kind of optical collimating lens, there is Ball lenses, GRIN-rod lenses, spherical lenses and aspherical lenses etc. but recently GRIN lens has monopolized a market. The performance of optical collimator depended on the coupling efficiency. In this paper, we were compared and analyzed to be measured values of coupling efficiency with respect to optical working distance using GRIN rod lenses and spherical lenses. In the case of GRIN lenses with a beam size of 420 ${\mu}{\textrm}{m}$, the minimum coupling efficiency was obtained to a measured value of 0.15 ㏈ and in the case of spherical lenses was obtained to a measured value of 0.12 ㏈ on the same condition. In results, we found that a performance of spherical lenses be better as compared with a that of GRIN lens.

• Korean Journal of Clinical Laboratory Science
• /
• v.46 no.4
• /
• pp.124-130
• /
• 2014

The aim of this study undertook to ascertain the health levels and risk among petty merchants at some traditional markets by way of physical examination and laboratory tests. Data was collected through physical examination and laboratory tests on blood pressure, glucose, cholesterol, triglyceride, LDL cholesterol, and HDL cholesterol. The data was analyzed by Frequency analysis, T-test, One-Way ANOVA using the PASW statistics 18.0 program. By blood pressure on sex, male ($1.89{\pm}0.6$), female ($1.48{\pm}0.6$) appeared (p<0.001). Male levels were higher than in female levels. Additionally TG appeared male levels ($193.4{\pm}129.4$), female levels ($142.7{\pm}80.6$). Male levels were higher than in female levels (p<0.006). By blood pressure as the age increased in more than 70 (2.17) exhibited a statistically significant difference. These merchants did not practice health behaviors nor take institutional health management benefit. Therefore governmental level community based health management services are recommended for them.

• Agribusiness and Information Management
• /
• v.7 no.1
• /
• pp.21-36
• /
• 2015

This study aims to analyze the differences of ginseng product consumers and segment Korean fresh ginseng and red ginseng root markets based on attributes for the purchase. As a result of analyzing survey data, the red ginseng root consumers had different aspects from fresh ginseng consumers. According to the result of cluster analysis, the fresh ginseng consumers were subdivided into three segments (safety-oriented consumption cluster, label centered consumption cluster, and high involvement consumption cluster), while the red ginseng root consumers were subdivided into four segments (convenience-oriented consumption cluster, high involvement consumption cluster, raw material's safety-oriented cluster, and raw material's information importance cluster). ANOVA and Crosstab were conducted to investigate characteristics of each cluster.

• International Journal of Human Ecology
• /
• v.15 no.2
• /
• pp.1-12
• /
• 2014

This study focuses on apparel production and consumption trends in major Asian economies in order to understand a paradigm change in the Asian fashion industry. A comparison of trade among ASEAN, NICs, and developed countries shows the changes that have occurred in terms of production and consumption of fashion products before and after 2000 in Korea, Hong Kong, and China. The flow of imports and exports in the apparel industry was analyzed using UN trade statistics data. The results found a change of industry structures in Asian NICs and ASEAN countries. Garment production bases have moved to lower cost regions like China and ASEAN; in addition, NICs sent a part of their export business in the fashion industry to ASEAN countries. The Asian fashion industry has transformed from a production base for developed countries into a consumption market with the emergence of newly industrializing economies.

• Proceedings of the KIEE Conference
• /
• 2001.07a
• /
• pp.330-332
• /
• 2001

This paper reviews technology for power quality differentiated supply in power system. Since price and power quality has been single goods in the light of customer-side view point but hereafter it is essential for power market to introduce multiple goods which is composed of differentiated combination between them. This paper should like to work out strategy for power quality differentiated supply in domestic power system by comparison characteristics of differentiated background and its relevant various theory.

• Proceedings of the KSR Conference
• /
• 2009.05a
• /
• pp.296-305
• /
• 2009

Since the beginning of civilization, people live in the times that changes rapidly everyday. Above all things, In April, 2004 the first opening of KTX(high-speed railway) that has been considered as the greatest revolutionary project shrinks the whole nation into a quarter of a day life zone and has repeated the constant change and development. But now, In comparison with ordinary train system KTX fails to notice revenue for travel-product and other many factors of increased revenue. This study introduces and analyzes the present condition of high-speed railway and indicate 'the plan to increase revenue' and 'the effect of creating revenue' through a travel-product on the basis of the travel-products connected with KTX. This study focuses on 'KTX memory train travel' and propose revenue and advertisement-effect created from targeting the middle-aged market. In addition, For improving KORAIL's image and approaching the customer more and more friendly, it grasp diverse events and advertisement plans.

• Journal of Auto-vehicle Safety Association
• /
• v.8 no.3
• /
• pp.22-27
• /
• 2016

As a preliminary research to provide amendment for the engine performance test regulation of two-wheeled vehicles, the engine performance data are investigated in terms of maximum torque, rated power, and engine speed of motorcycles on sales in Korean market. Based on the engine performance database officially published to consumers, some forecasted problems are discussed when the maximum torque and the rated power are measured under the present test standards. EU and Korea regulations on engine performance test are carefully compared in terms of the accuracy of measurement devices, test procedures including data acquisition method, and allowable range of rated power measurement. Complementary items are discussed to eliminate ambiguities in the present regulation and to construct rational regulation system.

• Journal of Dairy Science and Biotechnology
• /
• v.17 no.1
• /
• pp.32-38
• /
• 1999

Korean dairy industry is placed on the very critical situation with the progress of free trade marketing system internationally. To keep and improve the dairy food market, better measures are imperative for dairy industry. Especially, the milk distribution system is premodern to some extent, in comparison with both the production and the processing part of dairy industry. Reform measures for the promotion of domestic milk consumption by lowering the distribution cost are as follows. First, out-sourcing of the logistics department can decrease the circulation cost of milk. Secondly, milk should be packed into large-size package(more than 1 liter) to save both package and distribution cost. Thirdly, milk should be distributed from plant to consumers through the hygienic distribution system including perfect cold chain system, Above reform measures can not come true through the efforts taken by one company but through co-worker, concerted research, and joint in-vestment among dairy companies that can reduce the distribution cost and provide consumers with the best service, eventually resulting in the increment of milk consumption.