• Journal of the Korean Society for Aeronautical & Space Sciences
• /
• v.38 no.10
• /
• pp.1038-1048
• /
• 2010

Radiation exposures of an astronaut during the space travels to the International Space Station(ISS) of the Soyuz and the Moon of the Apollo, were calculated considering the altitude, boarding time, period of stay, kinds of spaceships and space suits. The calculated radiation exposures decrease dramatically according to the thickness of the shielding by the wall of the spaceships and by the space suits. For the space travel to the ISS of Soyuz at Low Earth orbit, the thickness of the spaceship required to optimally reduce the radiation exposure is 3 cm. For the Extravehicle Mobility Unit(EMU) the exposures are minimized at 4 cm of the aluminized Mylar and 5 cm of the Demron, respectively. The aluminized Mylar showed better radiation shielding than the Demron which contains the high Z materials. The radiation exposures of an astronaut were $4.2\times10^{-6}$ Sv for the ISS travel and $4.3\times10^{-5}$ Sv for the Moon explore. The high concentration of the high energy proton flux at the surface of the Moon results in high radiation exposure. The calculation scheme and results of this study can be used in the design of the shielding performance of a spaceship and space suits.

• Journal of Radiation Protection and Research
• /
• v.29 no.2
• /
• pp.141-150
• /
• 2004

Dose rate characteristics of cosmic radiation field at flight altitudes were analyzed and the route doses to the personnels on board due to cosmic-ray were calculated for Korean-based commercial international airline routes using CARI-6. Annual individual doses to aircrew and the collective effective dose of passengers were estimated by applying the calculated route doses to the flight schedules of aircrew and the air travel statistics of Korea. The result shows that the annual doses to aircrew, around 2.62 mSv, exceed the annual dose limit of public and are comparable to doses of the group of workers occupationally exposed. Therefore it is necessary to consider the frequent flyers as well as the aircrew as the occupational exposure group. The annual collective dose to 11 million Korean passengers in 2001 appeared to be 136 man-Sv. The results should be modified when the dose rates of cosmic radiation at high altitude are revised by taking into account the changes in the radiation weighting factors for protons and neutrons as given in ICRP 92.

• Proceedings of the Korean Society of Disaster Information Conference
• /
• 2023.11a
• /
• pp.51-52
• /
• 2023

다양한 삶의 질이 높아진 지금 인천국제공항에서는 영유아와 함께 비행기를 탑승하는 가족구성원을 쉽게 찾아볼 수 있다. 워라벨이 중시되고 긴 명절연휴를 맞아 해외 여행을 가는 것은 손쉬운 일이 되었다. 2013년 아시아나항공 213편 샌프란시스코 추락사고를 기억할 것이다. 당시 15개월 아기띠를 하고 있던 승객은 아기띠가 없었다면 아기를 잃었을 것이라는 인터뷰를 했다. 많은 국가가 영유아 안전벨트를 도입 및 장려를 하고 있지만, 아직 국내항공사는 영유아를 위한 안전벨트 도입에 소극적인 것을 알 수 있다. 유럽항공청 EASA에서 승인되어 사용하고 있는 영유아 안전벨트의 시스템을 살펴보고 예기치 못한 사고의 피해를 줄이기 위해 영유아 안전벨트의 필요성을 연구하고자 한다. 또한 도입에 따른 장애요인을 파악하고 대응 방안을 모색하여 국내항공사가 영유아 안전을 더욱 강화 할 수 있기를 기대한다.

• Journal of the Korean Society for Aviation and Aeronautics
• /
• v.21 no.4
• /
• pp.112-118
• /
• 2013

Air travel demand has recently been growing and establishment and operation of low-cost carriers have been increased. Against this backdrop, low-cost carriers need to figure out diversified customer demand for low-cost carriers and ways to maximize marketing efficiency before applying it to the field so that they can attain superiority to large carriers in increased intensified competition. Low-cost carriers need to be differentiated from other carriers for the purpose of improving profits. Toward this end, this study conducted analysis on importance and satisfaction with carrier choice using IPA with regard to low-cost carrier customers. In conclusion, the paper accurately examined advantages and disadvantages of low-cost carriers compared to general carriers based on results of IPA analysis and suggested managerial strategies to enhance competitiveness based on division into four parts including maintenance and enforcement (1st quadrant, Delay compensation, Booking rapidity, Check rapidity, Crew service, refund service, baggage service, punctuality, transit services, airlines images), concentrated improvement (2nd quadrant, price, Convenience of seat), passive administration (3rd quadrant, Boarding service, cabin cleanliness, flight schedule, whether local crew on board, meal service, in-flight entertainment service), and enhanced satisfaction (4th quadrant, duty-free service, Variety of routes), so that practical suggestions could be presented to employees working in the field.

• Proceedings of the Korea Contents Association Conference
• /
• 2012.05a
• /
• pp.151-152
• /
• 2012

최근 자연환경과 스포츠를 활용한 스포츠 관광의 활성으로 도심지를 벗어나 그 외의 지역으로 여행을 떠나는 레저스포츠 중심의 관광 형태로 발전하고 있다. 이러한 사회적 흐름에 따라 본 연구는 레저스포츠 중심의 관광활동 참가자들의 참가정도가 몰입에 어떠한 영향을 미치는지 규명하고자 한다. 레저스포츠 유형에 따른 몰입의 차이는 통계적으로 유의한 차이가 있었으며, 참가정도가 오래될수록 몰입도 또한 높아지고 있었다. 마지막으로 레저스포츠 관광활동의 참여정도는 몰입의 하부요인에 정적인 영향을 미치고 있다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2003.05a
• /
• pp.713-716
• /
• 2003

Semantic Web 환경을 구축하고, Semantic Web 환경에서 자동화된 서비스 발견, 서비스 수행, 서비스 구성과 상호운영이라는 Semantic web service를 수행할 수 있는 DAML-based web service 온톨로지를 이용하여 자동화된 항공권 예약 서비스와 테마별 여행 스케줄 서비스를 제공하는 프로토타이프 테스트 베드 구축에 대해 살펴 볼 것이다.

• Journal of Digital Convergence
• /
• v.17 no.9
• /
• pp.421-428
• /
• 2019

This study includes services that require six professional guides - health care, exhibition performance, restaurant, shopping, business and daily life - as well as a trip-based tour, along with solving existing problems that may occur on domestic and overseas trips, and proposes services that connect users with proven professional guides. As a result of previous research, the most needed services among overseas travel were air tickets, accommodation, transportation, and guides, but as Korea enters an aging society, professional guide services are expected to increase daily demand. Based on this, the service technology, user scenarios and brand development were presented. This Service Proposal provides users with a personalized guide to knowledge or experience that they have not previously known, providing them with a wealth of experience. In addition, guides can help develop new fields of expertise and help improve professional guides' capabilities. Finally, the platform service is meaningful in that it enables the creation of jobs by enabling everyone to engage in economic activities, as it allows users to provide services through their own capabilities while at the same time being convenient for them.

• Journal of the Korean Society for Aviation and Aeronautics
• /
• v.30 no.4
• /
• pp.76-91
• /
• 2022

면세점 판매 채널이 다양화되고 스마트 여객 증대 등 쇼핑 성향의 변화로 인해 인천공항 면세점 객단가는 하락하고 있다. 면세점 매출액 감소에 따라 사업 다각화 및 고도화 등 대응 노력이 필요하다. 따라서 인천공항 면세점 이용객의 쇼핑 행태 및 면세점 트렌드 변화에 적기 대응을 위한 기초자료 및 마케팅 강화 방안을 제시하는 데 궁극적인 목적이 있다. 본 연구는 인천공항 면세점 내·외국인 구매자/비구매자, 환승객을 대상으로 쇼핑실태를 심층 조사하여 행동 특성을 분석하였으며, 그 결과 내국인과 외국인, 환승객별로 인구통계학 특성, 여행 특성, 쇼핑 특성에서 차이가 나타났다. 인천공항 면세점 이용객별 중요하게 인지하는 요소와 만족하는 요소를 파악하고 개선할 부분을 파악하였다. 이로써 인천공항 면세점 운영정책 수립 및 기본방향 설정을 위한 기초자료로 활용할 수 있고, 인천공항 면세점 마케팅 강화 및 활성화를 위한 전략 방안을 제시하는 데 의의가 있다.

• Journal of the Korean Geographical Society
• /
• v.34 no.1
• /
• pp.47-61
• /
• 1999

The purpose of this study is to grasp position of Sachon airport-local airport-especially the characteristics of it's air passengers, the distribution of passengers hinterland on their purposes of the travel and on the day of the week, and the spatial structure of hinterland The results is as follows The distribution of the hinterland on the purposes of a passenger's travel shows the hunterland of friend and acquauntance visit is wider than that of business, And the middle level of its size is sightseeing The hinterland of commuting includes only Chinju, so the range of passengers' social activities is wider than that of passenger' economic activities In the distribution of the hunterland on the day of the week, the distnbution of the weekday is wider than that of the holidays, but the passenger travel to Chinju is concentrated on the holidays. As rnentioned adove, the hinterland centenng around Sachon airport is Chinju sity field. Tongyoung. Sachon and Koje city field, Kwangyang city and Namhae, Sanchong, Kosung, Hadong, Uiryoung county field. It is a little different result from the area of reverse commuting of the elementray, middle and high school Leachers living in Chinju That's because air passenger travel mainly occurs in industrial and sighrseeing cities

• The Journal of the Korea Contents Association
• /
• v.17 no.11
• /
• pp.515-524
• /
• 2017

This study is focused on finding out how Mers affects tourism industry. To achieve the study purpose we analyzed the differences of management performance of hotels, travel agencies and airlines before and after Mers occurrence. As the result of analysis, there were significant differences in the variables of profit margin ratio before income taxes and operating profit ratio as a profit index before and after Mers occurrence in the hotel firms. And in case of travel agencies, there were significant differences in the variables of debt to equity ratio and borrowings dependence ratio as a stability index before and after Mers occurrence. Lastly there were significant differences in the variables of operating profit ratio as a profit index and total assets turnover ratio as an activity index before and after Mers occurrence in the airlines. Therefore the managers should find an way to reduce the negative image of plague through the effective marketing strategy.