• 한국환경교육학회지:환경교육
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• 제22권1호
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• pp.83-96
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• 2009

This paper is intended to investigate the awareness of the elementary school students about the natural environment preservation. For this purpose, 21 elementary school students from the 5th grade of elementary school located in Gwangju city were selected. Especially, we focused on the students' conceptions related to 1) the environments, 2) the safe national land development activity to face several natural disasters and 3) the environmental preservation with the national land development. To evaluate the change of students' conceptions for the national land development, the students were also participated in establishing the plan of the national land development using the model of the natural environment after learning in detail about the natural environments. The results of this study showed that most of the students recognized the concept of the environments as a simple knowledge itself and pollution rather than the protection of environment. In the course of the safe national land development activity to face several natural disasters, the students expressed standardized answer indicating the knowledge based thinking of the environments. According to the results of the environmental preservation with the national land development and the hypothetical project of the national land development, the students did not have enough knowledge for the natural environment preservation although they had understanding of natural disasters and environmental preservation. Therefore, it is necessary to stress affirmative concept for the environment related to the preservation of natural environment. Also we need to develop the syllabus, which is related to the environmental studies, in the elementary educational program leading students to participate in the environmental preservation with the national land development reasonably and practically.

• 한국문헌정보학회지
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• 제51권2호
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• pp.207-235
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• 2017

본 연구에서는 NCS 역량기반의 사서직 계속교육 콘텐츠 개발 방안을 제안해 보고자 하였다. 구체적으로 본 연구에서는 국내외 사서직 역량기준을 조사하는 한편, NCS 및 사서직 역량요소에 대한 국내 연구를 분석함으로써 사서직 계속교육을 위한 핵심역량요소를 도출하고자 하였다. 또한 도출한 핵심역량에 대비하여 현재 국립중앙도서관의 사서직 계속교육 프로그램을 분석하고 그 개선방향을 제안하고자 하였다. 연구방법으로 내용분석, 설문조사, 초점집단면접 등을 활용하였다. 본 연구결과로 도출된 "NCS 역량기반의 사서직 계속교육체계(NCS-CPD)"는 각종 도서관에 근무하는 현장사서에게 필요한 전문 및 기초 핵심역량을 체계화하고 있다. 이 체계는 향후 사서직 계속교육 연구 및 현장에서의 균형있는 교육 콘텐츠 개발 및 교육과정 개발에서 유용한 가이드라인으로 활용할 수 있을 것이다.

• Molecules and Cells
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• 제38권12호
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• pp.1044-1053
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• 2015

This study first investigated the effects of corn gluten hydrolysate (CGH) (1.5 g/day) administration for 7 days on appetite-responsive genes in lean Sprague-Dawley (SD) rats. In a second set of experiments, the metabolic changes occurring at multiple time points over 8 weeks in response to CGH (35.33% wt/wt) were observed in high-fat (HF, 60% of energy as fat) diet-fed SD rats. In lean rats, the hypothalamus neuropeptide-Y and proopiomelanocortin mRNA levels of the CGH group were significantly changed in response to CGH administration. In the second part of the study, CGH treatment was found to reduce body weight and perirenal and epididymal fat weight. CGH also prevented an increase in food intake at 2 weeks and lowered plasma leptin and insulin levels in comparison with the HF group. This reduction in the plasma and hepatic lipid levels was followed by improved insulin resistance, and the beneficial metabolic effects of CGH were also partly related to increases in plasma adiponectin levels. The Homeostasis Model of Assessment - Insulin Resistance (HOMA-IR), an index of insulin resistance, was markedly improved in the HF-CGH group compared with the HF group at 6 weeks. According to the microarray results, adipose tissue mRNA expression related to G-protein coupled receptor protein signaling pathway and sensory perception was significantly improved after 8 weeks of CGH administration. In conclusion, the present findings suggest that dietary CGH may be effective for improving hyperglycemia, dyslipidemia and insulin resistance in diet-induced obese rats as well as appetite control in lean rats.

• 항공우주정책ㆍ법학회지
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• 제22권2호
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• pp.53-83
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• 2007

The purpose of this paper is to study precedent cases of the Air carrier liability for passengers. The article 17 of Warsaw Convention (also in Montreal Convention article 17-1) provides the Air carrier liability for passengers which is the most essential part of the Air carrier liability. According to these Conventions, 1) the carrier is liable for damage sustained in case of death or bodily injury of a passenger. Precedents and theories have disagreements on whether the damage covers the mental injury as well. 2) The carrier is liable for damage sustained from aviation accident. The definition of 'aviation accident' is becoming problematic. 3) The carrier is liable for damage sustained in case of death or bodily injury of a passenger upon condition only that the accident which caused the death or injury took place on board the aircraft or in the course of any of the operations of embarking or disembarking. The question at issue is the range of the operations of embarking or disembarking. This paper introduces the precedents (also, the model precedents) about the carriers liability for passengers and related cases, so as to help understand the trend of judicial decisions. Furthermore, the cases, once took all of the attention of the international air carriers, concerned with the 'Economy class syndrome' (DVT : Deep Vein Thrombosis) are also presented. Under the new Montreal Convention, the carriers liability for passengers will continue to be the main issue. Thus it is required that academics as well as practical businesses may keep up their studies about this issue.

• 한국항해항만학회지
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• 제29권5호
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• pp.365-370
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• 2005

대형선박의 충돌 혹은 좌초와 같은 많은 해양사고는 선박의 조종성능 부족으로 인하여 발생되고 있다. 따라서 IMO(국제해사기구)에서는 1994년 제18회 총회에서 결의서 A.751(18)로서 선박조종성에 대한 잠정기준을 채택하였고, 이 기준은 1994년 7월 1일 이후 건조된 길이100m 이상의 선박 또는 길이에 관계없이 모든 케미컬탱커 및 개스운반선에 대하여 적용된다. IMO 조종성기준은 크게 설계단계에서의 선회성능과 보침성능 및 최단정지성능으로 대별된다. 이 논문에서는 몇 척의 대형선박에 대한 최초 설계단계에서의 자료를 이용하여 조종성능에 관한 계산 및 시뮬레이션을 행하고, 계산된 결과를 모형실험 결과와 비교, 검토하였으며, IMO 조종성기준의 타당성에 관하여 검토 고찰하였다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2003년도 춘계공동학술대회논문집
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• pp.81-86
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• 2003

일본을 중심으로 과거 10여년전부터 수행되어온 선박자동충돌회피연구는 최근 눈부신 IT산업의 발전에 힘입어 실용화 단계에 까지 접어들 수 있는 환경을 맞이 하고 있다. 본 논문에서는 이러한 연구의 일환으로 선박자동충돌회피지원시스템의 주요 핵심 기술인 자동회피 알고리즘을 구성하기 위한 연구를 수행하였다. 선박운동방정식은 간편히 선체운동을 수학식으로 표현하는 KT모델을 이용하였으며, 선박이 정해진 항로를 유지해 나가는 Track Control System의 구현을 위해서는 퍼지 이론을 이용한 자동제어 시스템을 적용하였다. 또한 충돌회피 추론 부분에서는 위험도 판정을 위하여 TCPA와 DCPA를 이용한 퍼지 추론이 이용되었다. 충돌회피거동 기능면에서는 국제해상충돌예방규칙을 기초로 하여, 두 선박의 다양한 조우 상황을 분석하였다. 이 분석에 기초한 피항거동이 이루어질수 있도록 알고리즘을 구축하였다. 제안된 시스템의 유효성을 검증하기 위하여, 다양한 상황의 시뮬레이션이 수행되었다. 그 결과 적절한 선박충돌회피 동작이 이루어지는 것을 확인하였으며, 향후 더욱 연구가 발전된다면 자동선박충돌회피지원시스템으로 실 선박에 적용할 수 있는 가능성을 확인하였다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2006년도 International Symposium on GPS/GNSS Vol.1
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• pp.459-464
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• 2006

It has been well proved that shiphandling simulators are efficient and useful facilities for training and education of cadets and seafarers. Most of the maritime universities and many maritime training institutes all over the world have installed shiphandling simulators, which play important roles in maritime education and training. However, most of the Shiphandling simulators are standalone facilities with diversities on system architectures, layouts and functions. STCW78/95 requires simulators used for simulator-based training shall be suitable for the selected objectives and training tasks. To ensure the shiphandling simulator facilities meet the requirements of STCW convention and other expanded applications, collaborated research and coordination are needed in development and application of shiphandling simulators. Performance standard should be established for shiphandling simulator systems considering the advanced research needs as well as the needs in education, training, and assessment of competence. Standardizing and exchanging shiphandling mathematical models will improve critical performance of the system. Cooperated research on model course and training assessment approaches will enhance the training standard. In addition, the rapid spread of the internet technology has shown a promising future of application of shiphandling simulators through internet. Research has been carried out on internet based integration of multiple shiphandling simulators. A multi-agent based system, including necessary hardware, has been developed. Collaborated operation of the system can be of benefit in filling the gaps of the technical and operational level and methodology between maritime universities, enhancing mutual understanding of the navigation customs and culture background among cadets and seafarers from different countries, facilitating communication and maritime English training, and extending the functions of shiphandling simulators.

• 환경영향평가
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• 제21권1호
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• pp.119-132
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• 2012

Biodiversity is a key element of ecosystem of which function provides essential product and service in human life. In the course since development projects often causes damages to biodiversity, environmental impact assessment technique must be capable of accurately assessing potential impact from flora and fauna and to entire ecosystem. Korea needs improvement of its assessment technique that is compatible with Korean environmental regulatory standard that is generally stricter than that of most countries. This study attempts to explore both domestic and overseas biodiversity assessment techniques and analyze each stage of environmental impact assessment. The data is collected from numbers of literatures selected by navigating both domestic and overseas literature database with certain keywords. Among the 44 selected papers, overseas publications outnumber those of domestics, and there are more researches on assessment methodology of biodiversity than assessment tool and model. In terms of environmental impact assessment, the number of papers on environmental impact forecast exceeds the numbers of papers on current state of environment and the impact minimizing solution. Therefore, contents and trends of those researches in the different stages of environmental impact assessment discussed in this paper not only suggest potential impact on biodiversity and minimization solutions in detail, but is also a valuable resource particularly for biodiversity relevant environmental assessment technique improvement in Korea. Proposing of a new direction of improvement in biodiversity assessment techniques makes this study significant, and further research for preservation of biodiversity should follow up to provide an improvement scheme for biodiversity assessment techniques in the future.

• 한국항해항만학회지
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• 제27권4호
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• pp.375-381
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• 2003

일본을 중심으로 과거 10여전부터 수행되어온 선박충돌회피연구는 최근 눈부신 IT산업의 발전에 힘입어 실용화 단계에 까지 접어들 수 있는 환경을 맞이하고 있다. 본 논문에서는 이러한 연구의 일환으로 선박충돌회피지원시스템의 주요 핵심 기술인 자동회피 알고리즘을 구성하기 위한 연구를 수행하였다. 선박운동방정식은 간편히 선체운동을 수학식으로 표현하는 KT모델을 이용하였으며, 선박이 정해진 항로를 유지해 나가는 Track Control System의 구현을 위해서는 퍼지 이론을 이용한 자동제어 시스템을 적용하였다. 또한 충돌회피 추론 부분에서는 위험도 판정을 위하여 TCPA와 DCOPA를 이용한 퍼지 추론이 이용되었다. 충돌회피거동 기능면에서는 국제해상충돌예상규칙을 기초로 하여, 두 선박의 다양한 조우 상황을 분석하였다. 이 분석에 기초한 피항거동이 이루어질수 있도록 알고리즘을 구축하였다. 제안된 시스템의 유효성을 검증하기 위하여, 다양한 상황을 시뮬레이션이 수행되었다. 그 결과 적절한 선박충돌회피 동작이 이루어지는 것을 확인하였으며, 향후 더욱 연구가 발전된다면 선박충돌회피지원시스템으로 실 선박에 적용할 수 있는 가능성을 확인하였다.

• 실천공학교육논문지
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• 제8권2호
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• pp.121-128
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• 2016

사출 성형 공정에서 외관 품질 문제는 대부분의 성형품에서 발생한다. 금형의 열역학적 설계 중의 하나는 어떠한 위치에서 캐비티 표면 온도가 되도록 균일하게 상승하는 것으로 수행된다. 실험적인 평가를 바탕으로 최적의 사출 성형 조건에서 성형품의 미려한 외관 품질을 위해서 캐비티 벽 온도와 다듬질 가공된 캐비티 표면이 성형품의 외관 문제를 피할 수 있는 가장 중요한 요소이다. 또한 잘못된 게이트 형식과 위치 선택은 성형품의 품질에 상당한 영향이 있어서, 각 캐비티로 부터 올바른 러너 밸런스를 유지하는 것은 매우 중요하다. 실질적으로 생산 현장에서 이행될 수 있는 사출 성형 품질을 위한 최적의 금형 설계와 실무 금형 기술 능력 향상을 위해서 현장 교육을 위한 실무적인 금형기술 과정의 교육훈련 모델을 제시하였다.