In this study it will be discussed how to solve the problem of discomfort from rolling motion on the fishing boats. Most discomfort is caused by the short cycle of rolling due to the light weight of the boats. The light weight is due to the FRP material which dries a boat. A way to improve the feeling of boarding by using fish hold was researched. The experiment was done on experimental fishing boat made by FRP in Jeju. An existing fish hold was designed and manufactured through the rolling test and that was used for a marine experiment. The rolling condition of the U-tank boat ideally designed was compared to that of an existing fishing boat using the same conditions. The experiments were carried out two times on the stop engine in the outward Sehwa fishing port, which the experimental data had analysed for effects of rolling reduction to compare the U - tank with the of exiting fish hold. The results were confirmed that the U-boat tank in the roll period and GoM were more safe than the existing fish hold and the average amplitude and significant of rolling angles were decreased relatively.

This study made use of 9 types of utilizing idle farmland deducted from existing research in order to examine cases by type of idle farmland, and selected representative cases by type after analyzing contents of 165 available newspaper articles. Selected Cases were assorted into agricultural use and nonagricultural use, and agricultural use are as followed. ①Community Service/Farming type is the case of Gimhae city reported on ‘Busan Ilbo’, ②High Income/Farming type is the case of cooperative unit of Geumjeong crude drug in Yeongam appeared in ‘Newsis’, and the case of Omija industry in Mungyeong reported on ‘Hankyoreh’, ③Tourism/Landscape/Farming type is the case of rape flowers and buckwheat flowers in Gupo village reported on ‘Asia News Agency’, ④Stock Raising/Farming type is the case of growing foraging crops published in ‘The Daejeon Ilbo’, ⑤Weekend farm type is the case of utilizing idle farmlands and creating weekend farm reported on ‘Mediawatch’, ⑥High income/Forest type is creating Mulberry cultivation areas in Hamyang-Gun published in ‘Yonhap News’, ⑦Ecology/Landscape/Forest type is forestation project of idle land reported on ‘Newsis’, ⑧Agricultural Experience Study type is the case of managing agricultural experience study center in Dosun elementary center published in ‘Sisajeju’ and the case of non-agricultural application case, ⑨Ecological Environment type is the case of wetland restoration of idle farmland in Gochang. This study investigated and arranged detailed contents by the literature search and interview investigation according to investigating items such as utilizing area, main agent, purpose, utilizing item, utilizing content, etc. by case. With that, it deducted implications as well as case characteristics, and finally suggested political proposals through the case analysis.

For the purpose of drawing a representative type of utilizing idle farmlands, this study collected and analyzed newspaper articles about cases of utilizing idle farmlands in the past decade using Internet search engines. Prior to this, it clarified a concept of idle farmlands to raise accuracy of searching articles, and selected NAVER as a search engine. It set "idle farmland", "abandoned land", and "utilizing" as basic search words in search option, and also set search period from 1st of January in 2004 to 31st of December in 2013. This study primarily searched 1,593 articles, and extracted 165 articles excluding overlapped and unrelated articles. Furthermore, it investigated extracted articles by date, media, headline, content of use, region(province), particular area(city and country), main agent, item and keyword 1, 2, 3 for proper use. This study also examined frequencies by year according to indoor and outdoor environment as well as regional differences through frequencies by regional groups and chronology. Furthermore, it drew a diagram of frequency flow of keyword 2, 3 with each keyword 1 as the central figure in order to draw various types of using idle farmlands. Through the diagrams, this study drew 9 using types such as (1) community service. agriculture type, (2) high income. agriculture type, (3) sightseeing. landscape. agriculture type, (4) livestock. agriculture type, (5) weekend farm type, (6) high income. woodland type, (7) ecology. landscape. woodland type, (8) agricultural work-study type, (9) ecological environment type.

1999년부터 2002년까지 4년간 부산항 환적 컨테이너의 연평균 증가율은 34%를 상회하는 고속 성장을 하였다. 하지만 2003년부터 2006년까지의 4년간 연평균 증가율은 7.7%로 급격히 감소하였으며, 더구나 2006년에는 0.6% 성장에 그쳐 그 동안 부산항 물동량 증가에 견인차 역할을 해오던 환적 컨테이너의 지속적인 성장이 관심사항으로 대두되었다. 이러한 현상은 부산항 환적 컨테이너의 45% 이상을 차지하고 있는 중국과 일본 항만의 환경 변화와 밀접한 관련이 있다. 즉, 북중국 주요 3개 항만에 대한 대형 선사들의 직 기항 증가와 상해의 심수항 개장은 부산항의 환적 컨테이너 유치에 심각한 타격을 가하고 있다. 일본 역시 항만 경쟁력을 높여 자국화물을 지키기 위해서 슈퍼 중추 항만 구상을 실현해 가고 있다. 본 연구는 부산항의 항로 교차형 및 중심 분산형의 환적 유형 및 처리 실태를 분석하고, 이를 토대로 환적 컨테이너를 지속적으로 유치할 수 있는 정책적 방향을 모색해보고자 한다. 즉, 대형 선사들이 부산항을 환적 거점항으로 이용할 수 있도록 전용 터미널을 제공하는 것 등이 바로 그것이다.

수용성 폴리머와 계면활성제의 상호작용을 레올로지와 표면 장력을 측정하여 연구하였다. 본 연구에 사용된 폴리머는 acrylates/C10-30 alkyl acrylate crosspolymer (AC), ammonium acryloyldimethyltaurate/VP copolymer (AV)이다. 계면활성제는 PEG-40 hydrogenated castor oil (HC), polysorbate 60 (P60)이다. HC와 P60은 AC 폴리머 주위에서 마이셀을 형성하여 점도를 증가하였다. 그러나, HC는 P60보다 보다 높은 농도 범위에서 점도 증가 거동을 보였다. 같은 농도 범위에서 계면활성제들의 표면장력을 비교해보면, 표면장력이 AC/HC의 농도 증가에 따라 증가한 반면, AC/P60의 농도증가에 대해서는 거의 증가하지 않았다. 이런 결과는 AC/HC 사이의 마이셀이 강하게 조직화된 구조를 형성하기 때문으로 추정된다.

How to plan the energy system is one of the keys for constructing the Environment -Friendly City. For this reason, a great number of surveys for utilizing unused energy have conducted by a planner. In regard to unused energy, the heat from incineration plants classify as a unused energy having high-exergy-energy. From this point of view, It is studied about the plant systems providing heat to district heating & cooling(D.H.C) and producing electric power. It is divided four system models as system I (10K [kgf/cm2] vapor as outlet of boiler, supply for 10K vapor and return to 60℃ as supply condition of district heating), system Ⅱ (30 K vapor as outlet of boiler, supply for 5K vapor and return to 60℃ as supply condition of district heating), system Ⅲ (30 K vapor as outlet of boiler, supply for 85℃ hot water and return to 60℃ as supply condition of district heating), system Ⅳ (30 K vapor as outlet of boiler, supply for 47℃ hot water and return to 40℃ as supply condition of district heating). The results from the upper condition of four system, System Ⅱ got a proper on economical benefits and system Ⅳ calculated as benefiting on energy saving effects, and suggest indifference curve as the total evaluation method of both economical benefits and energy saving.