• The Korean Journal of Air & Space Law and Policy
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• v.27 no.2
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• pp.107-142
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• 2012

An aircraft has been one of the most important transportation means and disputes due to damage caused by delay of the aircraft happen many times out of ones related to the air transport. In 2011, the Air Transport Act in Commercial Law was established to regulate national air transport and the legislative system of air carrier's liability to handle delay of passengers or baggage was legislated here. Although there are some clauses related to the legislative system of air carrier's liability, they are very important because they deal with disputes due to damage caused by delay of the aircraft. The Air Transport Act in Commercial Law has a good point of adopting the global standard of 1999 Montreal Convention, but it has also a bad point of having the problems of 1999 Montreal Convention. There are some contents to be modified in the Air Transport Act in Commercial Law. First, the definition of 'Delay of Aircraft' needs to be enacted because it is important to materialize air carrier's liability due to damage caused by delay. Second, it is necessary to modify the clause in which air carrier's liability due to damage caused by delay of passengers is divided into two things, one is in case of national air transport and the other is in case of international air transport, and the limited amount of air carrier's liability in national air transport is eight times less than the latter because they are not so helpful to air carriers but too disadvantageous to aircraft passengers. Third, it is also necessary to amend the clause in which the limited amount of air carrier's liability due to damage caused by loss damage or delay of baggage has been legislated same without classifying the case into loss damage and delay, because they are generally different from each other in terms of extent of damage, therefore the limited amount of air carrier's liability by delay of baggage should be classified into in case of loss damage and in case of delay. It is desired that the Air Transport Act in Commercial Law including the clauses related to air carrier's liability by aircraft damage be developed continually by sufficient study and discussion about the necessity of amending it such as the one mentioned above.

• Journal of Surface Science and Engineering
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• v.24 no.2
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• pp.80-87
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• 1991

Investigations have been made in order to improve the toughness of TiC coated Cemented Carbide tools by CVD. The effects of coating parameters on TiC layer and eta phase and the effects of the thickness of TiC Coated layer and eta phase on TRS were studied.

• 주택과사람들
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• s.224
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• pp.34-38
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• 2008

새해가 밝았지만 건설 업계의 불안감은 더욱 가중되고 있다. 경제불황으로 그나마 살아 있던 주택 수요마저 얼어붙었다. 결국 정부는 경기 회복을 위해 각종 부동산 규제를 푸는 등 초강수를 두고 있다. 지금은 미국 경제의 회복 같은 외생적 변수들의 긍정적 시그널이 필요할 때다. 주택시상 연착륙을 위한 방안을 모색해 보자.

• 주택과사람들
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• s.200
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• pp.36-39
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• 2007

미국 부동산 시장이 연착륙 중이다. 모기지 금리가 40년 이래 최저 수준을 기록하고 부동산 경기 침체로 인해 주택 물량이 대거 쏟아져 주택을 구입할 수 있는 최대 기회라는 것이다. 워싱턴 D.C., 뉴욕 맨해튼, 뉴저지, 애틀랜타, 시애틀, 캘리포니아, 라스베이거스 등 미국의 주요 지역을 중심을 부동산 시장 상황을 점검해 보았다.

• 레미콘
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• s.80
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• pp.88-97
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• 2004

• Digital Contents
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• no.9 s.160
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• pp.19-19
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• 2006

• 월간 기계설비
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• s.168
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• pp.27-30
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• 2004

• 주택과사람들
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• s.196
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• pp.4-5
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• 2006

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.50 no.4
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• pp.251-257
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• 2022

We formulated the convex optimization based minimum energy soft landing problem for reusable launch vehicles, and obtained the minimum time trajectory via the bisection search. In order to implement the the optimal guidance command and complete the flight control architectures on the soft landing stage, we designed the classical attitude control loops, and formulated and solved the optimal actuator allocation problem. The obtained soft landing guidance performance was analyzed via nonlinear 6-DOF simulation.

• Water for future
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• v.48 no.5
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• pp.72-75
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• 2015