• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.12 no.6
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• pp.44-53
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• 2013

Ongoing SWIM(System Wide Information Management) with the United States and European countries as the center is a part of the ASBU(Aviation System Block Upgrade) program improved performance of aeronautical data system in the International Civil Aviation Organization and a core technology of Integrated Aeronautical Data Management Network to elevate service through digitally aeronautical information management. Therefore, in this paper, we analyze SWIM architecture and network applied the concept of SOA(Service Oriented Architecture), and propose methods of implementation transforming applications operating established legacy aeronautical data system into integrated aeronautical data management network through adapter technology. This will allow development of middleware and application suitable for the next generation infrastructure network environment for efficient ATM(Air Traffic Management)and provide timely required information for users.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.19 no.3
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• pp.83-95
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• 2011

This research is the ever first trial to demonstrate how consumer perceives price fairness of airfare. That, I did research on airline's flexible price changes and its effects on consumer's perceiving price fairness, proved the causality between before and after of airline service experience and examined the interest in moderating role of airline service. In addition to this, you also can see a markdown can have effects on consumer's perceiving price fairness. The main results are: Perceived price fairness before experience airline service had positive effects on perceiving price as fair. Since the direction of perceived price fairness coincides with in the context of the consumer's experience, so the preliminarily evaluated fairness had positive effects on the post fairness acceptance. With the second result, when you see consumer's perceived price fairness beforehand service experience has effects on post service experience in perceiving price fairness, you see the activation of a markdown, in-flight service, after-flight service as moderating roles as they strengthen the tie between the two perception modes and exhibited interaction with the price fairness beforehand service experience the independent variable. As the last one, a markdown of airfare had positive influence on consumer in perceiving price fairness. So, even if he/she becomes aware of overcharging, he/she will not pursue price being unfair. With these results, you can tell a markdown of airline service could have positive influence on both new and established consumers in the aspect of perceiving price fairness.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.23 no.4
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• pp.117-124
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• 2015

RAM (Reliability, Availability and Maintenance) has been applied to design and analysis tools which affects system's operational sustainability and its life cycle cost as RAM-c(2009 DoD). RAM-c plays also an important role to guarantee the system engineering for mission assurance. Reliability is highly related to the probability of system failure. Availability means mission capability or the condition of ready to mission. Maintenance includes both the repair to recover the system in the event of failure/unexpected breakdown and proactive maintenance to prolong the design service life of the system or machinery. It is the purpose that this paper is to analyze and conclude the objective service life of UAV. The more UAV is operated, the less the level of its reliability becomes. Repairing failures and supplying spare parts on time, system reliability could be improved up until the time over target. Applying statistical Weibull distributions, this paper suggests the analysis of the design service life and economic life of UAV based on RAM-c with operational data.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.14 no.4
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• pp.66-73
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• 2006

This study focuses on the economies of launching regular air services between capital cities of South Korea and North Korea. The demand for traveling between these two cities is too small to justify scheduled air service. However, it may be possible to provide regular air service by utilizing via flight of incumbent Seoul-Beijing flights. There are numerous flight services between Seoul and Beijing and we may allow some of the Seoul-Beijing flights to stop by Pyung Yang for commercial traffic handling. This study tries to find the optimal discount rate which passengers traveling between Seoul and Beijing via Pyung Yang, the idea is reasonable considering the inconvenience of stopping at Pyung Yang. The Stated Preference Techniques are applied for the study. The required data were collected through interviews of passengers traveling from Seoul to Beijing. The major variables that are considered in flight choice are air fare, flying time, and flight frequency. The relative importance of these major variables is estimated by the logit models calibrated with stated preference data.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.24 no.1
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• pp.16-24
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• 2016

Despite rapid growing in domestic duty free industry, weight of income from airport duty free area is relatively decreasing because of rapid progress in downtown duty free area. The purpose of this research was investigating the relationship between airport duty free servicescape and its effects on customer satisfaction and image for duty free shop, in order to maintain own competitive advantages. In pursuing above, previous studies related to servicescape, service value, customer satisfaction, and image were examined for literature review. Based on this previous studies, research model were constructed. Hypothesis was verified by effect. Data from 305 samples was employed for final survey. The main results show that functionality, attraction and convenience were meaningful factors to effect perceived servicescape. On the other hand, cleanness and comfort had few or no influence on servicescape. The perceived servicescape affected on service value and customer satisfaction. Service value had positive effects on customer satisfaction which was discovered to affected on image for duty free shop.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.22 no.4
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• pp.99-109
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• 2014

Airline and medical industry in Korea have rapidly grown since 21st century. However, air ambulance service using an aircraft has not as popular as in Japan, Europe or United States. Central government has decided to start emergency helicopter service since 2011 to transport emergency patients transported in the past by fire fighter helicopter. Unfortunately, 32 OECD countries out of 33 have operated emergency aircraft system except Korea. There are more than 25 emergency helicopters in Japan, which can operate within five minutes. Such system could save a lot of social direct or in-direct cost by saving valuable lives of Japan citizens. This paper has tried to research the perception of overseas Russian medical tourists on using Air ambulance for their medical tourism to Korea. Researching air ambulance, this paper expects to find ways to enhance both medical tourism industry and airline, business jet industry. According to research results, it was proven that tangibility of medical tourism service has a positive effect on the human factor of air ambulance. The human factor has also a significant impact on the passenger comfortableness of air ambulance. Such comfortableness increases the overall satisfaction of medical tourism.

• 제어로봇시스템학회:학술대회논문집
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• 2003.10a
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• pp.2623-2626
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• 2003

GPS provides two services which include SPS(Standard Positioning Service) and PPS(Precise Positioning Service). While SPS users can navigate in more precise due to cancellation of SA(Selective Availability), SPS users has still less precision navigation than PPS users. L1/L2CS integrated receiver can provide more precise navigation to SPS users because the delay of Ionosphere will be cancelled by using two frequencies (L1 and L2). This paper designs an integrated L1/L2CS digital correlator to prepare the L2C signal that will be provided in 2003. Also L2CS transmitter is designed to confirm L2CS correlator.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.25 no.4
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• pp.61-75
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• 2017

Recently Following changes in the airport industry, this study aims to investigate the relationship between physical servicescape elements, a travelers' enjoyment and/or anxiety, and traveler satisfaction in the airport environment context. Six airport service scape factorsd design, scent, functional organization, air/lighting conditions, seating, and cleanlinessd should be considered when evaluating traveler response. airport design features and pleasant scent have a positive influence on traveler enjoyment, generating satisfaction. This study also provides valuable implications for airport design, organization and development. By combining previous research on servicescapes and airport design, this study confirms the significance of servicescape attributes in transit service settings in Inchon international airport. The results of this study may help airport industry practitioners understand the airport environment from a passenger's perspective.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.19 no.3
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• pp.33-42
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• 2011

This study focused to find the main factors causing job stress to ROKAF pilots and of which factors affects to turnover intention. As a results, the factors of job stress are job characteristics, over loaded ground work, payment, promotion and employee benefits & service system. All of these 5 factors are positively related to the causes of a pilot stress. Among the job stress factors, payment, promotion and over loaded ground work are positively related as the same order. But, job characteristics and employee benefits & service system are not. Even though ROKAF pilots are stressed by annual requirement and night flying, and also are stressed by unfulfilled welfare, those two stress factors are not related to the turnover intention.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.11 no.2
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• pp.43-58
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• 2003

To decide the type of airplane to purchase in air service agencies is a typical matter of multi-criteria decision making process. The selection of airplane type is very important because it has great impact on the budget and management of air service agency, once the decision has been made. AHP is being recognized as one of many effective methods of multi-criteria decision making processes. In this study, checklist for the selecting optimum type of light airplane to be purchased is developed by the AHP.