• 제어로봇시스템학회:학술대회논문집
• /
• 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
• /
• pp.1651-1654
• /
• 1997

Restiction of vertical and lateral accelerations is one of the very important requierments which has to be satisfied on the practice of automatically controlled flights of the civil aviation passenger planes. This goal could be achived on the basis of the optimization procedure using specilly constructed quadratic performance index. In the report the application of this procedure to the parameteric optimization of the control laws with known structure for autopilot of midium-size aircraft in the level flight model is demonstrated. Performance index is calculted on the basis of the controllability grammian. Results of simulation of control processes in the lateral and longitudinal channels sre represented.

• 한국경영과학회:학술대회논문집
• /
• 한국경영과학회 2007년도 추계학술대회 및 정기총회
• /
• pp.27-37
• /
• 2007

Many problems related to airline business belong to large-scale optimization problems, so that it is expected that the state-of-art optimization techniques are widely applied to making the airline operation effective and competitive. This paper introduces the concepts and mathematical models of various optimization problems in airline system. Airlines involve many activities that utilize airline resources such as aircrafts and crews to make profit. We view the airline activities in the planning and operational aspects. In the planning viewpoint, we discuss the flight schedule design problem that impacts on passenger demand directly. For aircraft and crews, we deal with fleet assignment, aircraft routing, crew pairing optimization, and crew assignment problem. In the operational viewpoint, we concern schedule recovery problems for aircrafts and crew using the method of reassigning available resources when airlines face with the unexpected situations.

• 한국항공운항학회지
• /
• 제32권3호
• /
• pp.137-146
• /
• 2024

Aircraft are affected by various weather elements and phenomena as they operate vertically from the ground up to the tropopause and horizontally across temperate, tropical, and cold regions within a few hours. Meteorological information, which involves observing and forecasting these weather elements and phenomena, is crucial because it influences not only the safety of the aircraft and occurrences of cancellations, diversions, or delays but also the changes in flight time and fuel consumption. Since the routes of national carriers in Korea mainly cover regions with severe weather and significant weather changes, the role of systems and organizations for the collection, analysis, and application of meteorological information is important. This study investigated the operational case and effects of a meteorological organization at airline 'A'. It was confirmed that, following the establishment of this dedicated organization, more systematic application of meteorological information has shown operational effects such as enhancing flight safety, minimizing passenger inconvenience, and contributing to corporate management.

• International Journal of Contents
• /
• 제6권3호
• /
• pp.89-96
• /
• 2010

The International air transportation industry provides a vital communication link which brings prosperity to many states in our modern age. This invaluable link has been threatened by terrorism. Airlines have been one of the most attractive targets in the eyes of terrorists for several reasons, including particularly the international and symbolic nature of aviation, and the potential of multigovernmental involvement which can inevitably generate wide publicity. Terrorist attacks against civil aviation have been committed since the earliest days of civil aviation history. The first attack against civil aircraft dates back to the early 1930s. Since then, aircraft hijacking and other forms of attack against air transport operations have become one of the most serious challenges to the safety of flying. In recent years, a new form of threats against civil aviation has appeared. Man-portable air defense systems (MANPADS) in the hands of criminals, terrorists, and other non-state actors pose a serious potential threat to passenger air travel, the commercial aviation industry, and military aircraft around the world. The purpose of this study is to provide some countermeasures against such attacks. In order to foster a better understanding of the problem, an introduction of MANPADS and a brief history of attacks using MANPADS are presented. It also examines the level of threats, trends of attacks using MANPADS and the possible countermeasures to be taken by the international community.

• 한국항공운항학회지
• /
• 제22권4호
• /
• pp.99-109
• /
• 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.

• 한국항공운항학회지
• /
• 제30권3호
• /
• pp.65-75
• /
• 2022

This study tried to confirm whether the public's negative emotions such as fear and anxiety about corona virus infection caused by the spatial nature of the aircraft were alleviated due to factors of in-flight services focusing on hygiene and quarantine and further had a positive effect on the formation of Rapport between cabin crews and passengers. We also investigated the impact on passengers' perceptions such as Reliability and Safety which can be viewed as a new measure and standard of customer satisfaction in the Pandemic era through Rapport. A survey was conducted online in December 2021 for passengers with experience in boarding aircraft after the COVID-19 outbreak, and a total of 211 responses were used for analysis. As a result of the analysis of the data, it was confirmed that aircraft in-flight service had a positive (+) effect on Rapport, and Rapport between passengers and cabin crews had a positive (+) effect on passenger Reliability and Safety.

• 연구논문집
• /
• 통권25호
• /
• pp.207-213
• /
• 1995

Board bridges are one of the most important structural components of the airport ground equipment. Passenger boarding bridges will be installed to provide enclosed passengers for persons moving between aircraft loading doors and second story terminal gates. In order to the understand of boarding bridge, type and structural components are investigated and analyzed by using the commercial finite element code for model of various loading conditions. As results, the deformed shape and stress distribution of WS-750T and Jetway system type are obtained. It is expected to establish basic technology to design and change the shape of boarding bridge to improve the function.

• 한국항공운항학회지
• /
• 제8권1호
• /
• pp.57-66
• /
• 2000

Benefit-cost analysis is one of key elements of feasibility study on a large scale investment for transportation infrastructure improvements. Benefit-cost analysis requires measuring expected benefits after the investment is completed. Reduction of delays is the major source for the benefit among other measurable benefits. Measurement methods for delays reduction have been reviewed and two methods were recommended for passenger delay and aircraft operation delay. Using these method, the effects of Cheju International Airport Improvement Projects were evaluated.

• 한국추진공학회:학술대회논문집
• /
• 한국추진공학회 2008년 영문 학술대회
• /
• pp.628-637
• /
• 2008

The JAXA's TechCLEAN project(2003-present) is summarized, with the interim technical achievements. TechCLEAN is collateral program with the NEDO engine project to accelerate R&D work of small passenger aircraft engine as well as to develop innovative environment technologies applicable to the future improvements. In the project NOx reduction, CO2 reduction and noise reduction are targeted. Component level researches and system demonstrator validation are planned with test facility renovation and demonstration base engines.

• 지역연구
• /
• 제15권2호
• /
• pp.39-73
• /
• 1999

An examination is made of container movements, air cargo/passengers and telecommunications traffic in Northeast Asia during 1995. A drawback to studying flows between major cities is that information on telecommunications traffic is only available between countries. Also container traffic data are restricted to individual ports. Consequently, most attention is paid to movements of passenger aircraft between major cities derived from analysing timetables, particularly as they can be related to regional development concepts applied in Europe such as the 'blue banana' and 'bunches of grapes' concepts. A 'peas in a pod' may be a more appropriate movements are examined again in 1998 to gauge the impact of the Asian crisis.