• 새물리
• /
• 제68권11호
• /
• pp.1183-1191
• /
• 2018

$GaAs/Al_xGa_{1-x}As$ 다중 양자 우물들에 의한 초격자내 플라즈몬들이 다른 유전 계면과 반포물선 구속 퍼텐셜에 의한 거동을 초격자 축에 수직한 자기장과 평행한 전기장하에서 이전의 이론적 토대하에서 연구하였다. 막 위상 근사 방법을 사용하여 부 밴드 내와 부 밴드 사이의 전이가 고려된 밀도-밀도 상관함수로부터 표면과 벌크 상태의 분산 에너지를 전체 양자 우물의 평균 전기장, 자기장의 세기 및 조성비의 함수로 얻었다. 또한 여러 가지 평균 전기장, 자기장의 세기에 대한 라만 세기를 그들 상태에 대해 입사광의 에너지 함수로 얻었다.

• 한국농공학회논문집
• /
• 제63권2호
• /
• pp.19-31
• /
• 2021

The Ministry of Maritime Affairs and Fisheries has been promoting the 'Fishing Village Specialization Capacity Enhancement Project' to pursue sustainable development of villages such as income generation by using local tangible and intangible resources led by local residents at the village level since 2013. For the fishing village-Specialization capacity enhancement project, six training sessions (mainly in the village unit) are selected by the public offering method, and the project (income generating business, village development project, etc.) is developed for the selected village residents. It has a process of establishing a village project plan (a preliminary plan for village development or a sixth preliminary industrialization plan) based on the training of experts 5 times, practice or excursion 1 time). In this study, four villages in Gangwon-do fishing villages (two coastal villages and two inland water villages) were surveyed on the perception and satisfaction of fishing village development projects before and after training. The survey analysis was conducted by dividing the analysis of resident capacity and satisfaction into personal, interpersonal, and social dimensions. The survey was conducted by distributing a survey before and after training, and a 1:1 survey was conducted according to the residents' cognitive status. Based on the survey, factor analysis, reliability analysis, and analysis using the corresponding sample t-test showed an increase of 0.02 for Yangyang Mulchi fishing village, 0.11 for Samcheok Jangho fishing village, and 0.36 for Hongcheon River fishing industry, but Yanggu Jinmok fishing industry was -0.29, unlike other regions. As a result of this analysis, it has been empirically proven that provision of training projects through resident participation is a very important factor for the success of the fishing village project. Therefore, rather than fostering local leaders, training and community activities to strengthen personal capacities of residents participating in the project, it is necessary to operate the software business with a focus.

• 수산해양기술연구
• /
• 제57권4호
• /
• pp.302-315
• /
• 2021

In this study, factors such as improvement of a fishing process and safety, reduction of the labor force and headcount and development of the automation technology for offshore (eel and crab) pot fishing vessels were analyzed. A questionnaire survey was conducted to analyze and select the key factors using independent/paired sample t-test and correlation analysis, and a living lab was operated with ship owners, skippers and experts to discuss practical needs of the site. From the result of questionnaire survey and field requirements, it was possible to understand the level of awareness of ship safety, general safety equipment, fishing work process and fishing safety equipment from the point of view of the field. In addition, there were differences in the measurement results of each items because the working environment and experience were different according to the position of the ship owner and the skipper. The results of the questionnaire survey and various perceptions of field stakeholders were reflected when analyzing the fishing system and fishing process to choose the development equipment applicable to the field. From the analysis results, the selected development equipment based on the fishing equipment and process currently in operation are pot washing device, catch separation and fish hold injection device, length limit regulations and bait ejection device after use, automatic main line winding device, bait crusher, automatic (crab) pot hauling separator and so on.

• 한국항행학회논문지
• /
• 제27권3호
• /
• pp.293-299
• /
• 2023

UPRT(Upset Prevention And Recovery Training)은 2001년과 2011년 사이에 상업항공에서 발생한 항공기 사고 중 주요 원인이 LOC-I(비행 중 조종능력상실; Loss Of Control In flight)으로 분석된 이후 3년의 시간에 걸쳐 개발된 사고 예방 훈련 프로그램이다. 2014년 ICAO는 Doc.10011(Manual On Aeroplane Upset Prevention And Recovery Training)을 통해 고정익항공기에 대한 UPRT를 제시하였고 2019년 3월부터 체약국에 의무시행을 권고하였다. 해군 P-3C는 해상초계와 대잠전이 주요 임무이기 때문에 저고도(70~600 m)에서 비행하는 시간이 많고 P-3C 대다수의 조종사들이 비행착각을 경험한바 비정상 자세 예방 및 회복훈련은 해군 P-3C 조종사에게는 반드시 필요한 훈련이다. 이를 위해 본 연구에서는 해군이 보유하고 있는 P-3C 시뮬레이터를 이용하여 제한적인 상태에서의 비정상 자세 예방 및 회복훈련 방안을 제시하고자 한다.

• 수산해양기술연구
• /
• 제58권2호
• /
• pp.185-192
• /
• 2022

Fisheries is known as a high-risk industry in Korea, and various efforts have been made to reduce occupational accidents. Trap fisheries represent crustacean production, accounting for 4.7% of total fisheries production and 10.7% of its production value, which is classified as a relatively high-risk industry. With the disaster insurance payment data of the National Federation of Fisheries Cooperatives (NFFC) from 2016 to 2020, the accident rate of the entire fishery, the accident rate of trap fisheries, and the type of disasters in the past five years were analyzed. As a result, the average fishery accident rate for the past five years was 5.31%, but it was high at 6.15% for coastal trap fisheries and 5.59% for offshore trap fisheries. Slips and trips, struck by objects and contact with machinery were the most common types of the accident according to the characteristics of the work, and hand injuries were analyzed the most. Additional efforts, including education for accident prevention, development of personal protective equipment and improvement of the working environment, are needed to prevent accidents caused by repeated types of disasters.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2021년도 추계학술대회
• /
• pp.667-669
• /
• 2021

최근 RFID/USN 기술은 물류, 환경, 교육, 홈 네트워크, 방재, 군사, 의료 등 다양한 분야에서 적용되고 있으나 RFID/USN 기술의 눈부실 발달에도 불구하고 열악한 해양 환경의 특성상 해양 산업현장에 적용하기에는 많은 애로사항이 있다. 따라서 해양분야에서는 주로 위성을 사용하고 있으며 연안에서는 기존 통신망을 사용하고 있어 원양에서의 선반 단독 근거리 네트워크 형성을 위한 방안이 고려되고 있다. 본 논문에서는 기존 PS-LTE 및 LTE 네트워크에서의 USN을 활용하여 기지국 역할 위한 방안으로 드론을 USN의 이동 기지국으로 활용하는 방안을 고려하고 있다. 자율운항선박은 시스템의 지능화를 지향하므로 선원의 수와 노동력을 절감하고 보다 안정적이고 지능화된 ICT융합 기술형태의 자율적 네트워크 형성 기능이 강화되어야 한다.

• 한국지구과학회지
• /
• 제44권6호
• /
• pp.611-628
• /
• 2023

이 연구는 경남 고성군 덕명리 일원에 대한 지질 교육적 가치를 탐색하기 위한 것이다. 이를 위하여 이 일대에 대한 야외조사를 통해 퇴적구조(점이층리, 사층리, 연흔, 건열), 해안 퇴적환경(해식애, 파식대지, 자갈 해빈), 상대연령 측정(부정합, 단층, 관입, 포획암) 및 주상절리와 관련된 야외 지질 학습이 가능한 다수의 관찰 지점이 분포하고 있음을 확인하였다. 이후 교육과정의 성취기준 및 교과서의 학습 요소와의 부합 정도를 분석한 결과, 모든 관찰 지점에서 교과서에 제시된 지질학적 특성이 잘 나타나는 전형성을 보여주고 있으며, 동일한 관찰 지점에서 심화학습이 가능한 학습요소를 갖추고 있다는 점에서 지질 교육적 가치가 큰 것으로 평가되었다. 덕명리 일원은 뛰어난 지질 교육적 가치 이외에도 관광 및 교육 인프라가 잘 갖춰져 있는 만큼 안전한 지질 교육을 위한 학습의 장으로서 역할을 할 것으로 기대된다.

• 농촌의학ㆍ지역보건
• /
• 제48권4호
• /
• pp.275-284
• /
• 2023

Objectives: This study aimed to assess hand grip strength and femoral neck bone mineral density levels among Korean fishery workers and investigate their association. Methods: Hand grip strength and femoral neck bone mineral density were measured in a survey and health examination conducted in 2021 among fishery workers in a southern region of South Korea. Covariates including gender, age, education level, income level, smoking behavior, drinking behavior, family history of hip fractures, use of calcium and vitamin D supplements, hypertension, diabetes, regular exercise, and body mass index were investigated. Multiple regression analysis was employed to assess the association between hand grip strength and femoral neck bone mineral density. Results: Among 147 fishery workers, 8.16% exhibited low hand grip strength levels indicative of possible sarcopenia, and a significant association was found between low hand grip strength and decreased femoral neck bone mineral density (β = -89.14, 95% CI = -160.50, -17.78). Additionally, factors such as women gender, advanced age, family history of hip fractures, and a body mass index below 25 kg/m² were associated with decreased femoral neck bone mineral density. In the subgroup analysis by gender, a correlation between low hand grip strength and decreased femoral neck bone mineral density was observed only in men. Conclusions: Further research is needed to explore various determinants and intervention strategies to prevent musculoskeletal disorders among fishery workers, ultimately enhancing their quality of life and well-being.

• Strategy21
• /
• 통권34호
• /
• pp.93-127
• /
• 2014

During the four years following the sinking of the Cheonan frigate in 2010, the South Korean public opinion has seen changes in four basic ways. First, public polls with respect to the cause of the sinking show that 70% of the people consider North Korea as the culprit, while 20% maintain that it was not an act carried out by North Korea. Second, the opinions relative to the cause of the incident seem to vary according to age difference, generational difference, and educational difference. From 2011, people in their 20s showed 10% increase in regarding North Korea as the responsible party. People in their 30s and 40s still have a tendency not to believe the result of the investigation carried out by the combined military and civilian group. Third, the most prominent issue that arose aftermath of the Cheonan incident is the fact that political inclination and policy preference are influencing the scientific determination of the cause. In other words, scientific and logical approach is lacking in the process of determining the factual basis for the cause. This process is compromised by the inability of the parties concerned in sorting out what is objective and what is personal opinion. This confused state of affairs makes it difficult to carry on a healthy, productive debate. Fourth, rumors, propaganda, and disinformation generated by pro-North Korea Labor Party groups in the internet and SNS are causing considerable impact in forming the public opinion. Proposed Strategy 1. The administration can ascertain public trust by accurately determining the nature of the provocation based on accurate information in the early stages of the incident. 2. Education in scientific, logical, rational methodologyis needed at home, school, and workplace in order toenhance the people's ability to seek factual truths. 3. In secondary education, the values of freedom, human rights, democracy, and market economy must be reinforced. 4. It is necessary for the educational system to teach the facts of North Korea just as they are. 5. Fundamental strength of free democratic system must be reinforced. The conservative, mainstream powers must recognize the importance of self-sacrifice and societal duties. The progressive political parties must sever themselves from those groups that take instructions from North Korea's Labor Party. The progressives must pursue values that are based on fundamental human rights for all. 6. Korean unification led by South Korea is the genuine means to achieve peace in a nuclear-free Korean peninsula. The administration must recognize that this unification initiative is the beginning of the common peace and prosperity in the Far East Asia, and must actively pursue international cooperation in this regard.

• 한국항해항만학회지
• /
• 제43권6호
• /
• pp.384-394
• /
• 2019

이 연구는 우리나라 외항 상선에 승무하는 외국인 선원 관리제도의 현황을 고찰하고 제도상 문제점과 개선방안을 외국인 선원을 고용하고 있는 선주회사와 선박관리회사 그리고 선원관리회사, 관련 단체 대상으로 설문조사 결과를 분석하여 제시하였다. 그 결과로는 첫째 한국 선원과 같이 적용되는 외국인 선원 관련법 및 단체협약 등을 별도로 적용함이 필요하며, 둘째는 외국인 선원 고용정원의 의사결정 주체를 기존 선박소유자와 노동자 단체에서 선박소유자로 변경하거나 혹은 기존 의사결정 주체를 유지한다면 법률을 개정하여 명확히 하여야 하며 또한 외국인 선원 고용정원을 직책별 및 선종별로 지정할 필요가 있다. 셋째는 외국인 해기사 고용 시 선택의 폭을 확대하기 위하여 동유럽, 아시아 국가로의 해기 면허 인정협정을 확대하여야 하며, 넷째는 외국인 선원 고용 및 승선까지 복잡하고 불필요한 행정절차를 간소화하여야 한다. 다섯째는 외국인 선원과 관련된 회사 및 정부 기관, 협회 등 공동으로 외국인 선원에 대한 체계적인 양성체제 구축이 필요하다는 것이다. 동 연구를 통하여 우리나라 외항 상선에 승선하는 외국인 선원에 대한 더욱 효율적이고 체계적인 관리에 이바지할 수 있을 것이다.