• Journal of the Korean Society for Marine Environment & Energy
• /
• v.14 no.2
• /
• pp.73-80
• /
• 2011

The present study deals with the propeller design for the standard new propeller series so called KF Series for 52ton class fishing vessel. The MAU or B series have been usually used for the fishing vessel's propeller, which are to be improved in consideration of the efficiency as well as the cavitation point of view. The high technology of propeller design has been applied to the design of 52ton class fishing vessel's propeller in the present study. The new designed series propellers will be validated by the experimental results whose data will be also used for the new series chart.

• Journal of the Society of Naval Architects of Korea
• /
• v.49 no.5
• /
• pp.416-424
• /
• 2012

The MAU series has been usually used for the fishing vessel's propeller, which has been improved in consideration of the efficiency as well as the cavitation point of view in Pusan National University. The high efficiency standard series propeller(KF series) has been applied to the design of 52ton class fishing vessel's propeller in the previous study. The experimental study for the performance of the design propellers called KF series for 52 ton class fishing vessel has been conducted with five cases in Korea Ocean Research & Development Institute towing tank. The model tests have been carried out at different pitch ratio and expanded area ratio in comparison with the standard propeller to make the series chart. The KF series chart and the formula for performance expression have been completed on the basis of the experiment result.

• Landscaping Tree
• /
• s.109
• /
• pp.18-20
• /
• 2009

겨우살이는 땅에 뿌리를 박아서 사는 것이 아니라 흡근(吸根)으로 살아있는 나뭇가지에 뿌리를 박아 살아가는 기생목으로서 엽록소를 가진 상록관목이다. 모든 나무들이 낙엽진 겨울에도 홀로 푸름을 유지하고 있어 신성시되고 있다. 더욱이 잔가지가 Y자로 계속 갈라져 그 끝에 육질의 앞이 프로펠러처럼 역시 Y자로 붙어 있으며, 겨울에 투명한 노란색에 가까운 콩같이 둥근 열매가 달리는 것이 특이한 모양을 했음인지 많은 민속과 전설을 낳았다. 겨우살이는 우리나라뿐만 아니라 외국에도 널리 분포하는데 우리나라에서는 겨우살이라고 부르고, 일본에서는 야도리기(기생목(寄生木)), 중국에서도 기생목 또는 동청(冬靑), 상기생 등으로 부르며 라틴어로는 Viscum, 불란서 말로는 gui, 프랑스어로는 mistel이라 하여 모두 신비한 식물로 취급하는 점만은 공통적이다.