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- 저자 : 구홍 ( Hong Koo ) (검색결과 5 건)
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초대형선의 충돌피항동작에 관한 고찰 -TURNING AND CRASH ASTERN TEST의 결과를 중심으로-
구홍,Koo, Hong 한국항해항만학회 1981 한국항해학회지 Vol.5 No.1
Since 1960 tankers and bulk carriers have rapidly increased in size up to 500, 000 dwt. in operating as main system of transportation for the international trade at sea, and studies are doing carried out by various groups with a view to increasing the size still further. However, the service speed of these ships has remained almost constant, and steering devices of them have nearly not changed, comparing with regular size of a dry cargo ship. This creats the dituation where stopping distance and advance are proportionally longer for larger ships. In case of collision at sea, these vessels have been arised some serious casualties, such as sinking, fire and oil pollution. This paper analyzers a study for the handling of super huge vessels to avoid collision at sea, basing on the results of the crash astern test and turning test of them.
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선박충돌의 과실책임과 국제해상충돌예방규칙 -상법 제846조 쌍방과실의 충돌과 관련하여-
박용섭,구홍,Park, Yong-Sub,Koo, Hong 한국항해항만학회 1981 한국항해학회지 Vol.5 No.1
There are more damages from collision at sea because of the multiple reasons of sea conditions. For the purpose of avoiding collision at sea, Internaitonal Regulations for Preventing Collision at Sea, 1972 as an international convention is in force having the nature of international navigating law. According to the nature of the convention and the principle of legislation of the convention, not only it has the preventing nature on collision but it is a basic rules to make clear the faults of collision between vessels by the admiralty court in the developed maritime countries. Since there is no so much case law on it in this country and not to fixed the legal theory to define the faults of collision in civil law as per the above convention, the further study of the civil liability on collision based upon the above convention shall be recognized in the principle of fair of the civil law.
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Derrick식 하역설비의 Vector 삼각형을 이용한 응력해석
민병언,구홍,Min, Byeong-Eon,Koo, Hong 한국항해항만학회 1981 한국항해학회지 Vol.5 No.2
As far as ship's cargo handling devicesareconcerned, the derrick system has been used comprehensively in the marine. Even though there are several new devices for ship's cargo gear, such as gantry crane, jib crane adn self unloader, the derrick system, with its improved rigging method, still retains its utmost reputations among ship's owners. Therefore the method of calculating the system's militating stresses in the course of cargo operation needs to be more convenient and analytical. Here the author attempts to introduce the calculating method of stresses by means of vector analysis. The calculating method is able to analyze the stresses acting in every part of the cargo gear systems, such as union purchase, slewing or its modified system.
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Abbe 피판을 이용한 이차성 구순열비변형의 교정 4예
유선열,김태희,황웅,구홍,권준경,안진석,박홍주,Ryu, Sun-Youl,Kim, Tae-Hee,Hwang, Ung,Koo, Hong,Kwon, Jun-Kyung,An, Jin-Suk,Park, Hong-Ju 대한악안면성형재건외과학회 2007 Maxillofacial Plastic Reconstructive Surgery Vol.29 No.1
구순열의 일차 수술 또는 이차 수술 후에 발생하는 상순의 지나친 긴장은 상하순 간의 부조화, 상악열성장, 골격성 III급 부정교합 등 안모추형을 초래한다. 상순의 긴장이 매우 심한 경우에는 하순의 여유 있는 조직을 이용하여 상순을 수정하는 Abbe 피판을 고려할 수 있다. 상순의 긴장이 큐피드궁의 2/3 이상의 조직 손실을 동반할 경우 Abbe 피판의 적응증이 된다. Abbe 피판은 상순과 하순의 반흔, 색상의 부조화, 그리고 상순의 불완전한 운동을 초래하는 단점을 가진다. 그러므로 Abbe 피판은 신중하게 사용되어야 한다. 우리는 편측성 구순열 1예와 양측성 구순열 3예에서 상순의 과도한 긴장과 큐피드궁의 조직 결핍 그리고 비변형이 심한 이차성 구순열비변형을 교정하기 위해 세 가지 형태의 Abbe 피판을 이용한 이차 교정술을 경험하였다. Abbe 피판수술을 시행한 결과 상순의 반흔과 긴장이 해소되고 큐피드궁이 재건되고 비주의 길이가 증가되어 이차 구순열비변형을 교정할 수 있었다. Abbe 피판은 신중을 기해 적용한다면 구순열 수술 후에 발생되는 상순의 수평적 긴장감이나 편평함을 해결하는 데 유용한 술식임을 알 수 있었다. Radical paring of the cleft edge during primary cleft lip operation or repeated secondary surgeries can result in tightness of the upper lip. In case, the degree of the resulting side-to-side tension is very severe, the possibility of a lip switch flap must be considered. When the lip tightness accompanies a loss of more than two-thirds of the Cupid's bow, an Abbe flap is an alternative. The disadvantages of Abbe flap are scar formation on the lower lip, design of incision line on the upper lip, disharmony of colors, and the dysfunction of the orbicularis muscle. These problems have been recognized in the literature and extreme discretion has been advised in its application. We experienced four cases of Abbe flap operation which were designed differently to correct the secondary unilateral or bilateral cleft-lip nasal deformities. The Abbe flap operations resulted in removal of the scars and tightness of the upper lip, reconstruction of the Cupid's bow, lengthening of the columella, and therefore secondary cleft-lip nasal deformity could be corrected. It is thought that carefully applied Abbe flap is an appropriate method to relieve horizontal tightness or flattening of the upper lip which occured after primary operation of cleft lip.
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