• 시큐리티연구
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• 제50호
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• pp.145-172
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• 2017

2015년 8월 교육부는 사회적 수요에 따른 맞춤형 인재 양성을 위한 질적 구조개혁과 재도약 가능성이 있는 대학의 자율적 노력에 대한 적극적인 지원을 위해 대학을 평가하여 결과에 따른 등급별 감축 비율 권고 등 정원감축에 노력을 가하겠다고 발표했다. 이는 학령인구 급감에 대비한 선제적 구조개혁이며, 사회적으로 필요로 하는 맞춤형 인재를 양성할 수 있도록 경쟁력 있는 대학으로 탈바꿈하기 위한 하나의 대책마련으로 사료된다. 국내의 경호학과가 1996년 최초 설립 후 미래 4차 혁명 시대에 대비하기 위한 교육과정의 변화가 필요하며 교육목표, 취업진로에 방향이 정체되어 있다. 이에 따라서 과감하게 시대에 맞게 관련자격증과 교육과정, 국가직무능력표준(NCS), 전문교육과정이 앞으로 도입되어야 한다. 그 한 예로 한세대학교, 중앙대학교, 극동대학교에는 산업보안학과가 생겼고 경기대학교, 성신여자대학교에는 융합보안학과가 생겨나는 추세이다. 대학원의 경우 건국대에 안보재난대학원, 정보정책대학원, 형사사법대학원, 가천대 국가안보대학원, 성균관대 국가전략 대학원 등이 생겨나고 있는 현실에서 경호학으로만 안주해서는 안 되는 시점이다. 본 논문에서는 현재 각 주요 대학의 경호관련, 경찰관련, 산업보안관련, 군사관련 학과들의 교과과정 및 교과목을 중심으로 분석하였다. 학과 간의 통 폐합과 시대적 요청에 따른 변화를 미리 예측하여 향후에 대비할 필요가 있겠다. 전문대학에서 국가직무능력표준(NCS)을 적용하고 있는 시점에서 4년제 대학과 전문대학과의 유기적인 협조와 산학관의 상호협력을 절실히 모색해야하는 시점으로 본다.

• 방송공학회논문지
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• 제24권2호
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• pp.306-314
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• 2019

영상의 해상도가 빠른 속도로 증가하기 때문에 계속된 전송 대역폭의 증가에도 불구하고 여전히 효과적인 영상 압축 방법에 대한 연구의 요구가 계속 되고 있다. 이와 같은 요구를 충족하기 위해서 영상의 해상도를 줄인 뒤 압축하여 전송한 뒤에 복원 시에 초해상화 기법을 사용하여 원 해상도로 복원하는 방법에 대한 연구가 제안되었다. 이 방법은 입력 영상의 해상도를 낮추기 때문에 동일한 크기로 압축한다고 할 때, 픽셀 당 비트의 수가 증가되어 영상 압축에서 발생되는 손실을 줄여 복원 영상을 화질을 높일 수 있다. 하지만, 이러한 초해상화를 이용한 비디오 압축 방법의 경우 모든 목표 전송 대역에서 효과적인 것이 아니다. 영상 해상도를 줄이면서 발생되는 손실의 크기와 압축에서 발생되는 손실의 크기를 비교해서 영상 압축에서 발생되는 왜곡이 더 큰 경우에만 기존 압축 성능보다 향상된 결과를 얻을 수 있다. 특히, HEVC의 경우 이전의 표준 압축에 비해 상당히 높은 압축 성능을 가지고 있기 때문에 압축 왜곡이 더 커지는 경우가 상당히 저 대역폭 전송 에서만 생기는 것을 실험적으로 확인할 수 있었다. 본 논문에서는 다양한 영상에서 HEVC 기반 초해상화를 이용한 비디오 코딩을 적용해보고 효과적으로 적용될 수 있는 목표 대역폭을 측정해보았다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2010년도 춘계학술대회 초록집
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• pp.129.1-129.1
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• 2010

Since the commencement of the fuel cell business in 2007, POSCO POWER has been the major supplier of the MCFC (Molten Carbonate Fuel Cell), which is the most commercialized stationary fuel cell system in the world. With its quite, yet active movement, more than 20MW MCFC systems have been installed and are operating in Korea. While trying to localize the components and set up a firm supply chain in Korea to provide more reliable and cost-competitive products to its customers, POSCO POWER is also devoting itself to developing new MCFC application products. One such product is a back-up power system, in which a back-up algorithm is embedded to the present system so that the product can work as a back-up generator in case of grid failure. The technology to enhance load following capability of a stack module is also being developed with the back-up algorithm. Another example is a building application, the goal being to make the present Sub-MW product suitable for urban area. For this, downsizing and modularization are the main R&D scope. The project for developing ship service fuel cell for APU application will launch soon as well. In the project, a system which can operate in marine environment, and reforming technology for liquid logistic fuel will be developed.

• 수산경영론집
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• 제41권1호
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• pp.129-156
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• 2010

Well-deviced buyback programs may be detrimental to achieve sustainable fisheries. However, it is not difficult to find undesirable examples that the result of buyback program have no impact on fish stocks or the sustainability of the fishery. This paper discusses the problems and policy directions for successful restructuring of Korean marine fisheries through comparative analysis of selected cases from five main countries including Japan, Norway, Italy, Taiwan and Australia. From the analysis, this study demonstrated that Korean buyback program just pursue the reduction of boat number but passed over alleviation of the real ability in fishing industry. Although there were clear decrease of fishing effort in a certain parts of fisheries and some evidences of advancement in efficiency, it seemed hard to continue these effects because the Korean policy lacks consistency and coherence of systematic restructuring. To summary, four things are recommended for successful application of Korean buyback program; first is to establish the obvious goal of the program, second is to introduce downsizing in both fleet capacity and engine power, third is to conduct other management tools simultaneously to help resource restoration, and last, but not the least is to induce voluntary participation of fishermen providing opportunity to pursue their mutual interest.

• 경영과정보연구
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• 제17권
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• pp.135-160
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• 2005

In the 1990s, university environment is changing rapidly(especially, difficulty of student registration which are originated student's decrease and various deregulation) and university get ready for the new ways of management culture. This new ways are management innovation strategies. The purpose of this study is to suggest the direction of effective innovation(to search application possibility of management innovation strategy), solving the problems occurred by the enlargement and change in the environments of universities. From early in the 1990s, korean corporations perform actively many management innovation strategy including benchmarking, restructuring, downsizing, zero-based budgeting, BPR, learn organization and total quality management. But korean most universities performed hardware management innovation strategies such as corporate portfolio restructuring(including outsourcing, M&A, MBO etc.) and organization restructuring. Therefore korean universities have got to concerns about more software management innovation strategy such as total quality management and learn organization. Also we have seen another problems such as that universities try to merely duplicate certain management innovation strategies which are used by another university. rather than to make various effort to adequate their own organizations. In conclusion, korean universities are to play an important roles in the development of knowledge society. The management innovation and individual competence development in the university are required to overcome crisis of university.

• JSTS:Journal of Semiconductor Technology and Science
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• 제5권1호
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• pp.30-37
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• 2005

We present an air bridge type electrode system with tunable electrode distance for detecting electroactive biomolecules. It is known that the narrower gap between electrode fingers, the higher sensitivity in IDA (interdigitated array) electrode. In previous researches on IDA electrode, narrower patterning required much precise and expensive equipment as the gap goes down to nanometer scale. In this paper, an improved method is suggested to replace nano gap pattering with downsizing electrode distance and showed that the patterning can be replaced by thickness control using metal deposition methods, such as electroplating or metal sputtering. The air bridge type electrode was completed by the following procedures: gold patterning for lower electrode, copper electroplating, gold deposition for upper electrode, photoresist patterning for gold film support, and copper etching for space formation. The thickness of copper electroplating is the distance between upper and lower electrodes. Because the growth rate of electroplating is $0.5{\mu}m\;min^{-1}$, the distance is tunable up to hundreds of nanometers. Completed electrodes on the same wafer had $5{\mu}m$ electrode distance. The gaps between fingers are 10, 20, 30, and $40{\mu}m$ and the widths of fingers are 10, 20, 30, 40, and $50{\mu}m$. The air bridge type electrode system showed better sensitivity than planar electrode.

• 한국컴퓨터정보학회논문지
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• 제6권1호
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• pp.119-129
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• 2001

본 연구는 시군 통합시의 공무원의 처우개선에 대한 통합전후의 의견을 통하여 인식도 조사를 하였다. 이를 위한 지표로 근무평가공정성. 근무지배속 보수 및 수당, 승진, 신분보장, 업무의욕, 역할갈등, 응집도, 의사결정참여 등을 이용하였다. 조사결과, 조사지역인 통합여수시 가 아직 통합한지 2년 밖에 되지 않아 커다란 효과는 기대할 수 없었으나 약간은 개선되는 움임도 나타나고 있었다. 향후 계속적인 처우개선 노력이 필요하다고 본다.

• 한국정밀공학회지
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• 제22권4호
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• pp.76-83
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• 2005

With the acceleration of the miniaturization of products, especially in recent years, machining technologies for these products is in need of improvement. Conventional technologies have limitations in realizing the miniaturization due to the downsizing effects of the tools, which lack sufficient cutting stiffness during machining. The application of ultrasonic vibration is one of the most useful solutions in dealing with the problem. This study focused on the difference of ultrasonic drilling from conventional one in geometrical machining mechanism and the corresponding machining results. In detailed, some mathematical equations for drill cutting edge paths during drilling were extracted and new method to find uncut chip thickness from above equations was suggested. The experiments were carried out through the comparison between the results (disposed chips and internal surface states of holes) of conventional drilling and those of ultrasonic drilling. It was determined that the geometrical paths of cutting edges and analyzed uncut chip thickness agree with the appearance of disposed chips. Furthermore, the change in tool path by ultrasonic vibration resulted in the improvement of surface statement.

• Journal of Advanced Research in Ocean Engineering
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• 제1권4호
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• pp.252-267
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• 2015

Offshore structures might encounter several environmental and operating conditions during their lifetime of several decades. In order to predict the dynamic behavior of offshore structures, several simulation cases should be considered to deal with all the combinations of ocean environments and operating conditions. Because a sophisticated time-domain coupled dynamic analysis requires an extremely large amount of computational time to handle all the possible cases, an efficient preliminary process to prescreen the probability of severe environmental conditions can be helpful in downsizing the number of simulation cases and computational effort. In this study, a prescreening procedure to reduce the number of environmental conditions for dynamic analyses of offshore structures is proposed. For the efficiency of the procedure, frequency-domain theories were adopted to estimate the platform offset, using quasi-static analyses in line tension prediction. The results were validated by comparing with those of dynamic analysis coupled between platform and mooring lines, and reasonable agreement was observed. In addition, the characteristics of environmental conditions classified to be severe to the system were investigated through the application of the developed prescreening scheme to several actual environmental conditions.

• 한국자동차공학회논문집
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• 제24권2호
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• pp.232-241
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• 2016

The turbocharger, to decrease the harmful exhaust gas(CO, HC and etc.) and $CO_2$ emission as well as the increase of the engine output, would be an useful method for engine downsizing. Therefore the thermal endurance of turbine blade, the lubrication of turbine shaft and the engine knock according to the supercharge of the inlet air, had been studied. And there had been much progress in these research tasks to be achieved a breakthrough. But a study on the built-in WGV of a gasoline engine for a passenger car which may effect on the engine performance, is few. In this paper, the effect of the embedded WGV on the engine performance was performed through the endurance test, which was conducted more than 300 hrs using the 4 stroke, 1998 cc, water-cooled engine. To sum up the major results, there were an abrasion in the area of the WGV head edge and the thermal deformation on the WGV head face, These phenomena led to reducing the boost pressure which caused the reduction in the volumetric efficiency of the engine. It resulted in decreasing the engine power gradually during the life cycle of the embedded WGV.