• Journal of Aerospace System Engineering
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• v.9 no.1
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• pp.19-27
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• 2015

The Technical Standard Order articles are the parts and appliances for which the civil aviation authority designates as it is necessary to standardize for the expedited certification process and aviation safety. TSO articles were used on the type certified aircraft as replacement parts in the early days of TSO authorization system, but those articles are widely used on the newly developed aircraft as well in these days. In this paper, we compared the differences of the TSO authorization systems between FAA and EASA, and proposed the rulemaking items to improve Korean TSO authorization system and to contribute to growth of aviation industry.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.27 no.4
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• pp.114-118
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• 2019

EPTA(English Proficiency Test for Aviation) was not very aviation realistic test before 2019. Testee needed pass listening test first. Then testee could take speaking test. There were 20sets of speaking test. If the testee memorize well, he or she could pass the test easily even though he or she was not very good at English. So the pilot and the authority agreed to change the format of EPTA since 2016. Through development of new EPTA format, the Korea Transportation Safety Authority started new EPTA test since January, 2019. It has been one year since the new format of EPTA started. Now I try to survey satisfaction of new EPTA through questionnaire.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.6 no.1
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• pp.165-178
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• 1998

The worldwide improvement of the safety, efficiency and rationality in the field of aircraft operation environment and certificate management of aviation personnel has been proceeded cheerfully as a part of each country's globalization movement. Considering the importance of aviation transportation industry supporting nation's international trading has the competition among the airlines regarded possibly as that among the countries. In order to make Korean Government and Airlines more competitive in this race, the standardization and generalization of aviation regulations are required. On this study, some amendments are recommended to improve regulations and systems for pilot's certification management and operation environment by comparison analysis of regulations of ICAO, FAA and Korean aviation law.

• Journal of Climate Change Research
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• v.9 no.4
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• pp.313-318
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• 2018

The growth rate of international aviation is expected to be higher than that of most industries and the proportion of carbon emissions from the aviation industry will become very significant as the year 2050 approaches. Constraining the growth of this industry is not desirable because it is essential for human welfare as well as the development of related industries. However, reduction of carbon due to aviation is not easy because it is difficult to improve fuel efficiency in a significant way. The ICAO (International Civil Aviation Organization), which is the main organization responsible for handling this problem, developed a program named CORSIA (Carbon Offsetting and Reduction Scheme for International Aviation). The present study analyzes various strategies for countries and airlines to comply with CORSIA using a fuel-efficient system. We conclude that countries should improve their airspace utilization systems, airport facilities, and air navigation systems. Additionally, based on the results of a flight data analysis, airlines should improve their operational efficiency in terms of operations control, flight operation, and maintenance management.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.28 no.4
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• pp.164-170
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• 2020

Recently, the aviation industry faced a major crisis due to the impact of COVID-19. However, despite the sluggish passenger transportation, the cargo transportation sector is relatively maintained or increasing depending on the item. In this study, we will look at the trends before and after COVID-19, focusing on the cargo export field, which is a concern of the aviation industry. First, it analyzes the entire air cargo and then analyzes the trends of each item and country in detail. In particular, it examines the process of changes in air transport costs, which increased significantly immediately after COVID-19, and conducts future trends and prospects in the cargo export field. As a result of the study, some characteristics of air cargo exports before and after COVID-19 were found in an analysis by item and country, and transportation costs varied according to route distance.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.30 no.3
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• pp.123-131
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• 2022

출산율이 낮아지면서 대학에 진학하는 학령인구도 점차 줄어들고 있다. 본 연구는 항공서비스를 전공하는 대학생의 학업지속의향에 영향을 미치는 요인을 살펴봄으로써 전공만족, 진로성숙도, 학업지속의향의 관계를 규명하는 것을 목적으로 한다. 본 연구의 목적을 달성하기 위한 자료 수집은 전국의 4년제 항공서비스학을 전공하는 학생들을 대상으로 설문을 받았으며, 이를 통해 결과를 분석하였다. SPSS 21.0 프로그램을 통하여 전산 처리하였다. 본 연구의 가설검증 결과를 요약하면 다음과 같다. 첫째, 주요만족은 진로성숙도의 하위변수인 결정성, 목적성, 확실성, 준비성, 독립성에 유의한 영향을 미치는 것으로 확인되었다. 둘째, 전공만족이 학업지속의향에 유의한 영향을 미치는 것으로 나타났다. 셋째, 진로성숙도는 학업지속의향에 영향을 미치는 것으로 확인되었으며, 하위변수별 결정성, 준비도, 독립성에 유의한 영향을 미치는 것으로 나타났다.

• Korean journal of aerospace and environmental medicine
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• v.31 no.1
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• pp.1-3
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• 2021

In Vol. 31, No. 1, our journal prepared four review articles and two original papers. First, in commemoration of the 30th anniversary of our journal, the first review article described the history, development, and recent efforts for the qualitative improvement of the journal. For aviation workers, dizziness is an important disease that can interfere with their work. So, in the second review, we introduced guidelines that aviation medical examiners should be aware of in evaluating aviation workers who complain of dizziness. In the era of coronavirus disease 19 (COVID-19) pandemic, it is very important for aviation workers to get the vaccination safely and return to their work. So, Kwon introduced the latest updated guidelines for vaccination for aviation workers. In addition, Kim described the relationship between COVID-19 infection and respiratory allergic disease, and appropriate treatment guidelines. Lim investigated the recent trend of human papillomavirus vaccination for foreigners during the COVID-19 period, and investigated its implications. Finally, Ra developed various programs to strengthen students' global competencies and analyzed their satisfaction.

• Proceedings of the Korea Information Processing Society Conference
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• 2009.04a
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• pp.811-814
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• 2009

다양한 주소체계를 E.164번호로 통합하는 ENUM(tElephone NUmber Mapping) 기술은 휴대용 기기의 사용이 일반적인 현 시점에서 번호의 복잡성과 입력의 불편함과 같은 문제점을 가지고 있다. ENUM 번호를 키워드를 사용하여 매핑하는 Keyword DNS는 별도의 주소록을 사용하지 않고 ENUM 서비스를 사용할 수 있어 사용자의 편의성을 향상시킬 것이다. 본 논문은 ENUM과 Keyword ENUM을 설명하고 ENUM system과 Keyword ENUM system을 설계한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.07a
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• pp.105-106
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• 2023

소형제트엔진은 주로 연구, 실험, 교육 등의 목적으로 사용되고 있다. 이러한 소형제트엔진은 고도가 높고 고속으로 비행하는 드론에 추력 발생 장치로서의 중요한 역할을 수행할 수 있다. 그러나 엔진의 실질적인 활용을 위해서는 기존의 유선으로 구성된 컨트롤러를 무선으로 제어할 수 있는 방식으로 재구성하는 것이 필요하다. 이 중에서도 연료펌프의 무선제어시스템이 우선적으로 개발되어야만 다른 부분에 대한 무선제어개발이 가능해질 것이다. 본 논문에서는 소형 제트 엔진의 연료 펌프를 무선으로 제어할 수 있는 방식을 적용한 임베디드 시스템의 구성과 방식에 대해 제안하고 있다.

• Advances in aircraft and spacecraft science
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• v.10 no.6
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• pp.555-572
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• 2023

Airplanes in flight collide with raindrops, and the leading edges of the airframe can be damaged when colliding with raindrops. A single waterjet testing platform was created to study rain erosion damage. Carbon fiber samples with three types of skins were studied and the mechanical properties were measured using a nanoindentation instrument. The research results show that the impact force on the sample increases with the continuous increase in the impact speed of raindrops, which leads to an increase in the damage area. Sheathing with low surface roughness is more damaged than other sheathings due to its rougher surface, and the result proves that surface roughness has a more significant effect on rain erosion damage to sheathings compared to their hardness.