• 전력전자학회:학술대회논문집
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• 전력전자학회 2004년도 전력전자학술대회 논문집(2)
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• pp.506-510
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• 2004

현재 사용되고 있는 대부분의 1차 에너지원은 향후 60년 이내에 고갈될 것이며 인류의 과다한 화석 에너지의 사용은 지구 온난화 및 환경보호에 대한 관심을 고취시키는 결과를 초래하였다. 이와 같은 에너지와 환경의 문제를 해결하기 위한 노력으로 많은 국가에서 교토의정서 및 기후변화협약 등을 비준하는 한편 재생에너지 개발을 촉진하게 되었다. 재생에너지산업 중 풍력발전산업은 여타 재생에너지보다 경제성을 확보하고 있으며 지난 5년간 매년 $30\~40\%$의 높은 성장률을 보이고 있다. 따라서 본 연구에서는 첫째 풍력발전산업의 필요성 및 특성에 대하여 살펴보고 둘째, 풍력발전산업의 국내${\cdot}$외 현황과 각국의 풍력발전산업 개발${\cdot}$육성정책 등을 비교${\cdot}$검토한 후 마지막으로 기존 화석에너지와 대등한 경쟁력을 확립해 나가고 있는 풍력발전산업이 국내에서도 타당한 경제성을 갖춰 나갈 수 있는 기반이 조속히 구축될 수 있도록 하기위해 현재 우리나라 풍력발전정책의 문제점을 지적하고 그 개선방향을 제시하고자 한다.

• 한국콘텐츠학회논문지
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• 제12권12호
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• pp.111-118
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• 2012

캡스톤디자인은 비단 공학 분야에서의 교육프로그램이 아닌 산업체가 요구하는 산업현장 적응능력을 갖춘 창의적인 종합설계 교육 프로그램이라는 측면에서 디자인 교육에서의 적용 가능성이 매우 높다고 볼 수 있다. 본 연구는 건국대학교 디자인조형대학 인더스트리얼디자인전공의 2011년도 캡스톤디자인 적용 교과를 중심으로 교육과정과 성과 및 활용 등에 대해 기술하였다. 디자인개발을 위해 선행되어야 하는 실험 연구와 지식재산창출을 위한 선행기술조사 및 실무능력 향상을 위해 전문 지원기관과 산업체와 협약을 바탕으로 수업을 진행하였다. 본 수업을 통해 특허, 실용신안, 디자인 등의 지식재산을 창출하여 학생들에게는 실무능력 향상의 계기를, 기업은 디자인을 통한 기업역량강화의 계기를 마련하였으며 지원지관은 지역 중소기업 경쟁력강화의 계기를 마련하였다.

• 해양환경안전학회지
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• 제9권1호
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• pp.25-31
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• 2003

IMO는 1994년 해양안전 및 해양환경보호를 위해 ISM Code를 채택하였으며, 2002년 12월 선박, 선원, 화물, 항만시설의 안전을 도모하기 위해 ISPS Code를 채택하였다. ISPS Code는 2004년 1월부터 발효되는바, 해운회사 및 항만당국은 본 규정의 시행에 매우 촉박한 상태이다. ISM Code와 ISPS Code는 ISO 9001의 경영시스템 개념에 기초하고 있지만 목적은 다르다. 따라서 이들 세 기준들의 요건들을 비교분석하는 것은 매우 의미가 있을 것이다. 본 고에서는 이들 세 기준들의 배경, 원리, 요건들을 비교분석하고 해운계가 ISPS Code에 적합하게 보안조치를 수립하고 이행하는데 참고가 될 제안을 제시한다.

• 조명전기설비학회논문지
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• 제21권4호
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• pp.88-95
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• 2007

Korea is highly dependent on foreign countries for energy while at the same time having a high energy-consumption industrial structure. Therefore, logical improvements in energy use efficiency and nationwide energy saving are becoming more and more important in coping with the worldwidehigh oil prices and environmental issues such as listed in the Kyoto Protocol to the United Nations Framework Convention on Climate Change. Consequently, a study was conducted on the average annual load factor in domestic areas to set a reasonable and reliable technology standard plan for high-efficiency transformers. The average annual load factor in Korea was discovered to be 18.4[%] classified by industry. This factor is expected to be used in arranging a domestic standard for a minimum efficiency system for transformers, and in reviewing and supplementing the standard transformers plan for the High Energy-Efficiency Appliance Certification. The expected effect from the establishment of the technology standards plan for highly efficient transformers is the expansion of the manufacturing and distribution of highly efficient transformers that are suitable for domestic use. These will lead to electricity cost savings for users, strengthening the related industries' market competitive powers and the effective reduction of greenhouse gases on a national level by drastically reducing loss from transformers, which accounts for a large portion of the total electric supply losses.

• Asian-Australasian Journal of Animal Sciences
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• 제23권6호
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• pp.825-832
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• 2010

The United Nations Convention on Biological Diversity defines biotechnology as "Any technological application that uses biological systems, dead organisms, or derivatives thereof, to make or modify products or processes for specific use" Biotechnology has made tremendous contributions to improve production efficiency of agriculture during the last century. This article reviews successful examples of application of bio-fermentation in improving swine nutrition efficiency mainly based on the authors'z own research experience. Production of feed grade supplemental amino acids by bio-fermentation allowed nutritionists to formulate accurate feed for optimal lean growth and reduced nitrogen excretion. Recent issues with high feed grain prices caused potential feed quality problems. Bio-fermentation allowed nutritionists to use exogenous supplemental enzymes such as phytase and NSPases in swine diets, thereby improving nutrient utilization and reducing nutrient excretion to the environment. Yeast metabolites are also produced by bio-fermentation and have been repeatedly shown to improve milk production of sows during early lactation even though actual mechanisms are still to be investigated. Bio-fermentation technology also allowed nutritionists to prepare vegetable protein sources with large protein molecules and anti-nutritional factors suitable for feeding newly weaned piglets, as selected microorganisms significantly reduce specific anti-nutritional factors and size of peptides. Preparations of vegetable protein sources suitable for newly weaned pigs will greatly contribute to swine nutrition by providing efficient alternatives to the use of animal protein sources that are often expensive and somewhat against societal preference. Considering the few examples listed above, biotechnology has closely influenced improvement of production efficiency in the swine industry. As we have limited resources to produce meat to satisfy ever-increasing global demands, extensive adaptation of biotechnology to enhance production efficiency should be continued. However, at the same time, wise and careful application of bio-technology should be considered to ensure production of safe food and to meet the expectations of our society.

• Journal of Microbiology and Biotechnology
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• 제20권11호
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• pp.1539-1545
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• 2010

In beer, glutathione works as the main antioxidant compound, which also correlates with the stability of the beer flavor. In addition, high residual sugars in beer contribute to major nonvolatile components, which are reflected in a high caloric content. Therefore, in this study, the Saccharomyces cerevisiae GSH1 gene encoding glutamylcysteine synthetase and the Saccharomycopsis fibuligera ALP1 gene encoding ${\alpha}$-amylase were coexpressed in industrial brewing yeast strain Y31 targeting the ${\alpha}$-acetolactate synthase (AHAS) gene (ILV2) and alcohol dehydrogenase gene (ADH2), resulting in the new recombinant strain TY3. The glutathione content in the fermentation broth of TY3 increased to 43.83 mg/l as compared with 33.34 mg/l in the fermentation broth of Y31. The recombinant strain showed a high ${\alpha}$-amylase activity and utilized more than 46% of the starch as the sole carbon source after 5 days. European Brewery Convention tube fermentation tests comparing the fermentation broths of TY3 and Y31 showed that the flavor stability index for TY3 was 1.3-fold higher, whereas its residual sugar concentration was 76.8% lower. Owing to the interruption of the ILV2 gene and ADH2 gene, the contents of diacetyl and acetaldehyde as off-flavor compounds were reduced by 56.93% and 31.25%, respectively, when compared with the contents in the Y31 fermentation broth. In addition, since no drug-resistant genes were introduced to the new recombinant strain, it should be more suitable for use in the beer industry, owing to its better flavor stability and other beneficial characteristics.

• 대한조선학회논문집
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• 제49권5호
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• pp.367-375
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• 2012

In this study, hull form of main vessel of Korean large purse seiner fishing industry is developed for the improvement of resistance performance as well as for the satisfaction to the Standard of Fishing Convention, ILO. Through the modification of reference hull form parameters and local characteristics, the hull form development is carried out. The optimum hull form parameters are searched by Sequential Quadratic Programing(SQP) method with the power estimation method of Holtrop & Mannen. To minimize the wave resistance, bulbous bow parameters are determined by the bulbous bow design method of Alvarino. The plasmatic curve is redesigned from that of the reference hull by using Lackenby method. The resistance performances of the reference and designed hull forms are estimated by using numerical simulation method. Also, the judgment of seakeeping ability and the estimation of intact stability for the designed hull form is carried out. As a result, the optimum hull form is proposed. To verify the improvement of resistance performance, model tests are carried out in towing tank. The results show that the resistance of the designed hull form is about 14% smaller than that of the reference hull from at design speed. A new hull form proposed in this study can contribute to the development of the main vessel hull form of Korean large purse seiner fishing system.

• 디지털콘텐츠학회 논문지
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• 제18권3호
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• pp.543-550
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• 2017

슈퍼 히어로 영화는 모든 세대를 아우를 수 있는 새로운 장르 컨벤션을 형성하였다. 영상콘텐츠에서 파생된 피규어는 전문적인 조형기술을 통해 제작된 입체 조형물이다. 피규어에 대한 소유는 가상과 현실을 연결시켜 주는 매개체로써 상징적 의미를 가진다. 이러한 관점에서 피규어는 콘텐츠 산업의 시장 확장에 따른 파생된 캐릭터 상품으로써 중요한 부분을 차지한다. 이러한 맥락에서 본 연구는 슈퍼히어로 피규어의 외형적 시각요소 평가가 구매의도에 어떠한 영향을 미치는가를 분석함으로써 소비자구매형태를 확인하는 것이 그 목적이다. 이를 위해 독립변인을 캐릭터의 외형적 시각요소 평가로써 색상, 신체유형, 얼굴모양, 동작으로, 종속변인은 구매의도로 하여 다중회귀분석을 실시하였다. 분석결과, 색상, 신체유형, 얼굴모양은 구매의도에 긍정적 영향을 미치는 것으로 나타났고, 동작은 구매의도에 유의미한 영향력이 없는 것으로 나타났다.

• 수산경영론집
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• 제34권1호
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• pp.69-85
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• 2003

The primary objective of this thesis is to study, case by case, the international disputes for fishing rights between fishing nations and costal states never imagined till the introduction of the UN Convention on the Law of the Sea adopted in 1982 and came into effect in November 16, 1994, which governs the high seas and EEZ in a new manner. Such a study is to provide help in the understanding on this new marine system and how to deal with. This is addressed by the perspectives of disputes (a) in the high seas between fishing nations having traditionally enjoyed the principle of the freedom of the high seas and costal states, (b) in the EEZ between fishing nations and costal states possessing the exclusive jurisdiction over living marine resources and sovereign rights for determining allowable catch and the surplus in its EEZ. The article can be divided into four main parts. First, both the general principles of the settlement of international disputes, and the nature and procedures described in the UNCLOS are introduced. Second, it gives cases of tuna long-liner, North Pacific trawler and squid jigger occurred in the coastal states EEZ, and analyses the problem in both terms of its background and final judgment. It further describes the possible issues in case it depends on the International Tribunal for the Law of the Sea for its settlement. Third, closely tied to above, important points such as the right of hot pursuit, prompt release of vessel and crew, and the limits of cooperation with costal states inspector on board fishing vessels are considered mostly based on the UNCLOS, Bilateral Agreement and UNIA. Finally, the article concludes as follows ; The need for broad analyses on the nature of international suits and legal system for the settlement, to win the case before the International Tribunal for the Law of the Sea or coastal states court, is really acknowledged. However, considering the lack of previous studies about it, it is preferably recommended that governmental efforts for making legal standards to cover the judicial costs, for helping industry out of becoming bankrupt.

• Journal of Advanced Marine Engineering and Technology
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• 제33권6호
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• pp.843-851
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• 2009

Much work has already been done to control and regulate the worldwide problems caused by climate change, particularly the issues on greenhouse gas (GHG) emissions. Carbon dioxide ($CO_2$), having the highest form of concentration among GHGs composed around 1.0 billion tons of emission, and comprises about 98% of the total emissions from the shipping industry. Korean trade mainly rely on the sea transportation. Korean ship tonnages that was brought about by shipbuilders all over the country, continues to grow annually due to the prevailing demands on goods or material supplies and depicting only a small part of the global maritime activity. Nowadays, new build ships coming from the Korean Shipbuilders are being optimized by hull, structure and appendages design, The operational capability of the propulsion and auxiliary machineries in its maximum capacity to achieve the highest possible efficiencies for energy and onboard power use to mitigate $CO_2$ emissions are continually being done through the help of research and development. In this paper, the energy efficiency design index and anboard power capacity of Korean new build ships have been analyzed with response to data collected by ship types, and its respective fuel consumption in relation to $CO_2$ emission results. In response to climate change convention outcome proposals, the best way for the new build ships to become energy efficient is by lowering its operational speed thru adopting the state of the art diesel propulsion engines, patronizing the best sailing practice to lower the transportation cost on the different sea trade routes also helps in $CO_2$ mitigation.