• 한국인터넷방송통신학회논문지
• /
• 제11권6호
• /
• pp.177-182
• /
• 2011

최근 연안지역에 선박 통항량, 다양한 양식업, 어로, 그리고 레저 활동이 증가하고 있어, 이에 따라 안전한 항해 통신 정보를 위한 다양한 통신 서비스가 요구되어 왔다. 본 논문은 다중 인터페이스를 가진 이동 IP 라우터를 이용한 해안 지역에서 통신 서비스 지원 방안에 관한 것이다. 이를 위하여, 이 시스템은 선박에게 다양한 통신 서비스를 제공할 수 있는 WiBro, HSDPA, 그리고 WLAN와 같은 무선 인터페이스를 가지고 있어, 해안을 따라서 설치된 무선망을 통하여 선박에게 다양한 정보통신 서비스를 실시간으로 제공할 수 있다. 따라서 이 시스템은 공인된 끊김 없는 정보 통신 서비스를 제공할 수 있는 인프라를 제공할 수 있다.

• 한국환경과학회지
• /
• 제22권4호
• /
• pp.481-492
• /
• 2013

In this study, the use survey of domestic and international weather information on coastal regions and the demand survey (e.g. general and in-depth surveys) for customer needs with coastal industries were carried out to design customized coastal weather contents. The general demand survey showed that most of the customers working in the coastal industries were interested in a short-term forecast, such as a general weather outlook (approximately 29% of the total respondents) and typhoon information (19%), and they preferred to be given the forecast information from new media such as the internet web-pages (36%) and mobile utilities (23%) rather than old media such as TV (16%) and radio (11%). In addition, only 31% of the total respondents were found to be satisfied with the use of the current coastal weather service. This low percentage might mainly be a result of lack of information accuracy (about 64%) and diversity (28%). From in-depth survey with site visiting, the need of coastal weather contents, such as weather elements, data form, a tool of communication, and forecast interval, differed with the working stages in three coastal industries (e.g. shipbuilding, maritime trade, and passenger transport industries).

• 수산해양교육연구
• /
• 제27권3호
• /
• pp.725-734
• /
• 2015

In contemporary society, many fishery industries face a serious problem of having an insufficient number of junior ship officers and engineers. Even though many fishery high schools in Korea made significant effort to produce many talented junior officers and engineers, but after graduation, the students are reluctant to get a job on the fishing vessels. Furthermore, Korean government also invested a large amount of money to train students for ocean-going and costal & near-ocean fishing vessels. However, despite the government's great effort on the training program and education, only a few students wish to work on the fishing vessels. In this article, the author tried to find answers for various questions such as what are the factors that the student prefer, where the student to want to get a job in fishery industries, and how student feel about working at fishing vessels. Furthermore, the author also analyzed the differences between high school student group and Korea Institute of Maritime and Fisheries Technology(KIMFT) student group about occupational orientation by utilizing SPSS statistical program. Additionally, the author surveyed the current onboard status of job position of the high school and KIMFT alumni. This study's results and data will be used for aiding further stimulation and advertisement of job position in fishing vessels and continued daily lives on board.

• 한국해양공학회지
• /
• 제19권4호
• /
• pp.35-41
• /
• 2005

There has been increasing offshore oil exploration, drilling, and production activities, as well as a huge amount of petroleum being transported by tankers and pipelines through the ocean and costal environment. Assessment must be made of the potential risk of damage resulting from the exploration, development and transportation activities. This is achieved through predictive impact evaluations of the fate of hypothetical or real oil spills. VVhen an oil spill occurs, planning and execution of cleanup measures also require the capability to forecast the short-term and long-term behavior of the spilled oil. A great amount of effort has been spent by government agencies, oil industries, and researchers over the past decade to develop more realistic models for oil spills. Numerous oil spill models have been developed and applied, most of which attempt to predict the oil spill fate and behavior. For an actual contingency planning, the oil fate and behavior model should be combined with an oil spill incident model, an environmental impact and risk model and a contingency planning model. The purpose of this review study is to give an overview of existing oil spill models that deal with the physical, chemical, biological, and socia-economical aspects of the incident, fate, and environmental impact of oil spills. After reviewing the existing models, future research needs are suggested. In the study, available oil spill models are separated into oil spill incident, oil spill fate and behavior, environmental impact and risk, and contingency planning models. The processes of the oil spill fate and behavior are reviewed in detail and the characteristics of existing oil spill fate and behavior models are examined and classified so that an ideal model may be identified. Finally, future research needs are discussed.

• 한국건축시공학회지
• /
• 제14권6호
• /
• pp.523-529
• /
• 2014

국내에서는 많은 양의 패류가 생산되고 있으나, 이로 인해 발생하는 대량의 패각을 처리하는데 많은 어려움을 겪고 있다. 따라서 본 연구에서는 이러한 패각을 대량으로 처리하기 위하여 건설재료로서의 가능성을 평가하고자 한다. 모르터의 잔골재를 패각으로 치환하여 흡수율, 압축강도를 측정하고 계면결합 형태를 관찰하였다. 대체적으로 패각의 치환율이 증가함에 따라 흡수율은 증가하였으며, 압축강도는 감소하였다. 예외적으로 꼬막 패각을 치환한 모르터는 치환율이 증가함에 따라 압축강도가 증가하였다. 패각 치환율의 증가에 따른 흡수율의 증가 및 압축강도의 감소는 패각 주위에 발생한 다공성 때문인 것으로 파악되었으며, 꼬막 패각을 치환한 모르터는 패각과 시멘트 입자간의 계면결합 형태가 양호하였기 때문에, 오히려 강도가 상승한 것으로 판단된다.

• 수산해양교육연구
• /
• 제27권4호
• /
• pp.1053-1062
• /
• 2015

This research assesses the implementation of the bilateral fisheries order of the China-Japan fisheries agreement. After establishment of UNCLOS, the China-Japanese fisheries agreement has played as a basis for the fisheries order in the East China Sea. The China-Japanese fisheries agreement intends that the fisheries industries in China and Japan can utilize the renewable natural resources in the East China Sea. As the EEZ of China overlaps with that of Japanese in the East China Sea, the two countries established the China-Japan Provisional Measure Zone and Middle Zone in the Sea. Even though the three coastal States (e.g. Korea, China, and Japan) in the East China Sea are involved in managing these zones, there has been little effort to coordinate each county's management. Additionally, the Taiwan-Japan fisheries agreement, which is for the area of N $27^{\circ}$, has made costal States to establish and implement united measures to conduct effective fisheries management. Regarding access to the joint fishing zone in EEZ, Chinese fisheries regulations have been enforced in the zone because the fishing capacity of China exceeds all of other countries, reducing the number of fishing licenses and catch quotas. It turned out that a nation that has authority over fisheries resources tends to establish specific conditions of fishing operations to maximize its national interest. In the China-Japan Provisional Measure Zone, Chinese and Japanese authorities have introduced united measures to manage fisheries resources. However, in the Middle Zone between China and Japan, there is no regulation on fishing; both countries' fishing vessels can have free access to the zone. Thus, it is recommended that one should introduce an international fisheries management regime for the Middle Zone. In this regard, Korea should play a leading role in establishing the international management regime because Korea has middle position in terms of geographical standpoint, the degree of dependence on commercial fishing, and its fishing capacity.

• 수산해양교육연구
• /
• 제7권2호
• /
• pp.182-200
• /
• 1995

1991년 1월부터 12월까지에 32척의 한국 다랑어 선망어선이 서부 태평양에서 가다랭이와 황다랑어 이를 주대상으로 조업하였다. 그 중에서 본 연구의 대상인 어선은 14척이었으며, 이들이 1년간에 조업한 매일의 조업선 누계는 4,153척, 총투망회수는 2,982회, 총어획량은 106,300M/T이었다. 이들이 어획한 어종별 어획량, 어체 크기별 어획량, 표면 수온별 어획량 분포를 고찰하고, 월별로 어획된 해역을 경위도 30'간격의 소해구로 분할하여 그 해구별 어획량 분포를 고찰한 결과를 요약하면 다음과 같다. 1. 어종별 어획량 비율은 가다랭이가 75.0%, 황다랑어가 22.3%, 눈다랑어 등 기타의 다랑어 및 새치류가 2.7%였다. 2. 가다랭이의 크기별 어획량은 개체의 중량 2.0~2.9kg의 것이 혼획된 경우가 68.0%로 가장 많았고, 1.5~1.9kg의 것이 혼획된 경우는 11.6%, 3.0~3.9kg의 것이 혼획된 경우는 9.9%였다. 황다랑어의 크기별 어획량은 5~9kg의 것이 혼획된 것과 10~19kg의 것이 혼획된 경우가 각각 23.1%, 28.3%로 많았고, 20~29kg의 것이 혼획된 경우는 15.8%, 30~50kg의 것이 12.5%, 2~50kg의 것이 9.7%였다. 3. 표면 수온별 어획량 분포는 $29.0^{\circ}C{\sim}29.4^{\circ}C$에서 전체 어획량의 49%가 어획되었고, $29.5^{\circ}C{\sim}29.9^{\circ}C$에서도 37%가 어획되었으며, $30.0^{\circ}C{\sim}30.4^{\circ}C$와 $28.5^{\circ}C{\sim}28.9^{\circ}C$에서는 6% 내외의 어획량에 불과했고, $28.4^{\circ}C$ 이하와 $30.5^{\circ}C$ 이상에서는 1%내외로 극히 부진하였다. 4. 월별, 해역별 어획량 분포를 보면, 가다랭이는 8월과 9월에 남위 $3^{\circ}{\sim}6^{\circ}$, 동경 $176^{\circ}$~서경$176^{\circ}$의 해역에서 각각 10,618M/T, 10,412M/T으로 가장 많이 어획되었고, 6월과 1월에 남위 $1^{\circ}$~북위$3^{\circ}$, 동경 $142^{\circ}{\sim}151^{\circ}$의 해역에서도 각각 8,824 M/T, 8,057M/T으로 많이 어획되었으며, 5월과 11월, 12월의 New GUINEA 연안 해역에서는 극히 부진하였다. 황다랑어 는 6월에 북위 $0^{\circ}{\sim}4^{\circ}$, 동경 $142^{\circ}{\sim}151^{\circ}$의 해역에서 4,070M/T으로 가장 많이 어획되었고, 2~4월과 10~12월의 연안 해역 및 도서 주변에서도 2천 M/T이상으로 많이 어획되었으나, 8~9월의 원양 해역에서는 극히 부진하였다.