• 한국자동차공학회논문집
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• 제11권5호
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• pp.127-133
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• 2003

For the purpose of evaluation the damage repairability of a Frame Type Passenger vehicle which experienced a Low Speed 40% Offset front and rear Crash Test. tests were made according to the RCAR testing procedures. Test results concluded ; (1) The deceleration at C.G(center of gravity) off 6.9∼11.39 was similar to that for the vehicle. The airbag system was found to affect neither the passenger's safety nor the savings of the repairing costs. (2) In order to improve the repairability of the Frame Type Passenger vehicle after collision should be a higher crash performance of the bumper on the RCAR standards.

• International Journal of Ocean Engineering and Technology Speciallssue:Selected Papers
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• 제3권1호
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• pp.56-62
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• 2000

The trends of recent passenger ships are becoming speedy and luxury style to enhance comfortableness in cabin. In order to meet these trend, ship designer has to improve the sound quality as well as to reduce the sound pressure level in cabins. In this paper, the trend of noise and sound quality of real high-speed coastal passenger ships are measured and analyzed, while running on their regular courses. The sound quality parameters such as loudness, roughness, fluctuation strength, and sharpness are evaluated by Zwicker loudness calculation. In addition, we try to find sensitive critical frequency band for the improving sound quality by using signal editing. Finally, the expected effective design methods are proposed to designer for the improving sound quality of passenger ships.

• 한국실내디자인학회논문집
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• 제19권1호
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• pp.226-235
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• 2010

As marine leisure is getting popular around the world, people's interest in cruise ship is increasing rapidly. Now it became possible to make cruise ship with Korean technology, as a result of continuous research and development. However, as cruise ships are getting bigger and more popular, new cruise interior design is required to satisfy various clients' aesthetic and functional demands. Therefore, more researches for cruise interior design are needed. The purpose of this study is to analyze the characteristics of planning and design of passenger's cabins in cruise ship. The scope of this research is limited to the types in the 2004-2010 in Large Cruise Ships. Method of this study are document study and case study, in particularly, case study is conducted for the specific design methods through case analysis. The results of this study are as follow : One of the transitions in the cruise cabin designs is that cabins with balconies occupy a large portion of the entire cabins. As the functions of these balconies are diversifying, more distinctive forms of balcony are showing up. In particular, the cabins which are connected to public space differentiate themselves from those with the same rates; it meets the demands of the clients who require high quality services. In terms of cabin design, a futuristic, distinctive cabin that has incorporated will be a very important function in determining the value of the cruise ship. Based on the results of this research, application of the rapid changes in cabin design and studies about more diversified and advanced design are required.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2000년도 춘계학술대회 논문집
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• pp.495-502
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• 2000

For the tunnel design of the first class on new Seoul-Chunchon railway, we investigated for train speeds to run through tunnels without ear-discomfort of passenger in cabin by application of numerical analysis. Also we analyzed the effect of the wind speed induced by train in tunnel that is very harmful to the workers on railroad and the effect of the air-pressure fluctuations which get the fatigue to the tunnel lining and the car body.

• 한국전산유체공학회:학술대회논문집
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• 한국전산유체공학회 2001년도 추계 학술대회논문집
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• pp.31-36
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• 2001

The velocity and temperature profiles in the cabin of the automobile affect greatly to the comfort of the passenger. In this paper, the three dimensional flow and temperature analysis in the cabin of the automobile which is geometrically complicated was performed to investigate and predict the velocity and temperature profile. The three dimensional Navier-Stokes code used in this case was validated by performing of a 1/5 experimental scale model vehicle flow anal)rsis successfully. The temperature field of cavity was analyzed for Energy-equation code validation. The comparison of the results are made with the polished computational data and give a coincided one.

• 한국항해학회지
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• 제20권2호
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• pp.33-50
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• 1996

The routes of coastal passenger ships are important in the light of both economic and social view point. Islands around the Korean peninsular can be actually dominated by linking them with land by the ships. The service quality of the route is not high enough to satisfy habitants in the islands. The income of the service-users is increasing so that they expect better service in terms of ship's speed and cabin. The reality is not, however, good to motivate ship-owners to replace aged ships with new and large ones. The situation is caused by low passenger-fare and inefficient management. Therefore the fare should be raised and the fare system should be innovated. And the number of passenger ship companies should be reduced from 42 to 20 by merger and acquisition.

• 한국자동차공학회논문집
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• 제2권6호
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• pp.29-37
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• 1994

Active noise control of random noise which propatate in the vehicle cabin as a form of spherical wave is the target of this study. In the previous study, the adaptive algorithm for adaptive controller is presented for the application in active noise control system. And for the preliminary study of adaptive active noise control in vehicle cabin as a real system, a computer simulation is performed on the effectiveness of the adaptive algorithm in the amplitude of the pressure fluctuation. This work studies the implementation of multi-channel feedforward adaptive algorithm for the reduction of the noise inside a vehicle cabin using a number of secondary sources derived by adaptive filtering of reference noise source. Multi-channel adaptive feedforward algorithm are verified in numerical simulation and semi-experimental justification of developed system is made on a domestic passenger car. In the results of semi-experimental study, the noise of specific region in the interior of automobile are reduced for the appreciabe sound pressure level in the operating engine rpm and finally this study suggests the capabilities of the real time active noise control in 3 dimensional acoustic fields.

• 한국산학기술학회논문지
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• 제20권9호
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• pp.188-197
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• 2019

본 연구는 국적 항공사를 이용하여 해외여행을 떠나는 아웃바운드 여객들이 인식하는 국적 항공사의 객실서비스 품질이 그들의 관광지 관광체험과 관광만족도에 어떠한 영향을 미치는지 실증 분석하였다. 왜냐하면 국적항공사는 우리나라를 대표하는 항공사이기 때문에 한국을 여행하려는 외국인 인바운드 여객의 긍정적인 국적항공사의 서비스품질 인식은 한국여행 관광만족을 증대시킬 수 있는 중요한 요인이 될 수 있기 때문이다. 실증분석을 위해 국적항공사를 이용하는 관광이 여행목적인 내국인 승객들을 대상으로 설문지를 배포 후 회수하여 실증분석을 실시하였다. 연구자는 해외로 아웃바운드 관광을 떠나는 내국인 승객들에 대한 실증분석을 통해서 유의미한 분석결과가 도출된다면, 역으로 한국을 관광지로 하여 인바운드 관광을 오는 외국인 여행객들에게도 적용가능한 시사점을 제시할 수 있다고 판단하였기 때문이다. 따라서 여행객이 인식하는 항공사 객실서비스 품질, 관광지 관광체험 및 관광만족도를 선행연구들을 통해 이론적 측면에서 고찰하고 잠재변수들 간 통계적으로 유의한 인과관계를 도출하였다. 분석 결과 항공사 객실서비스 품질은 친절성, 반응성, 용이성 및 유형성으로 구분되었다. 객실서비스 품질에 대한 긍정적인 인식은 인지적 관광경험과 정서적 관광경험을 매개로 하여 궁극적으로 관광만족도에 영향을 미치는 것으로 판명되었다.

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2008년도 춘계학술대회 논문집
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• pp.172-173
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• 2008

• 한국대기환경학회:학술대회논문집
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• 한국대기환경학회 2006년도 춘계학술대회 논문집
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• pp.557-558
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• 2006