• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.1437-1440
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• 2008

In this paper, we mainly deal with metallic electrode materials and patterning processing of plasma display panels. We focus on the recent development status, where low cost and high performance electrode materials such as Ag-based single-layered bus, low cost-in-use and anti-migration address electrodes are briefly introduced. The technological trends and further works on novel electrode materials and processing are also discussed.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2010년도 춘계학술대회 논문집
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• pp.1623-1629
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• 2010

The high speed rolling stock system considerably belongs to a special industry which requires large-scale investment cost but the recovery term is long. Therefore, to guarantee risk and possibility of technological success in initial investment, tools concerned with various expecting methods like life cycle costs analysis and credibility management are used. In view of this characteristics, the cases on cost structure for HSR RS previously invested should be studied and the method to appropriately allocate the life cycle of each sub-system like arrangement unit, electric device, braking device, door and car body should be realized. Moreover, the environmental aspects of main manufacturer and parts supplier can be checked. This study, through the case study for HSR cost structure in introduction and operational stage of KTX, aims to seek for the method to adapt to environmental changes like EU railway industry of which object is to acquire global market competitiveness by integrating manufacturing and operation of RS and the regulation and operation of IRIS which is performed in Europe.

• Corrosion Science and Technology
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• 제9권4호
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• pp.159-163
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• 2010

Precise coating weight control is very important issue on quality and minimizing operating costs on continuous galvanizing line. These days, many steel making companies are having a new understanding of cost importance by rise raw material prices and customer's requirement for cost reduction. Dongbu steel also meets these situations and decided to develop the technologies. Dongbu Steel developed Integrated coating weight control system jointly with Objective Control Ltd. and installed 2CGL and 4CGL. Several technological functions were developed and realized to achieve true hands-off operation and maximum cost benefit by combining model-based preset and dynamic prediction models. We also installed it on 1 CGL on April, 2008. This paper will present the interface, functions and application result of the integrated coating weight control system including Zn saving and coating weight uniformity.

• Journal of Magnetics
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• 제22권1호
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• pp.14-22
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• 2017

The NMR's probe consists of the static magnetic field generator (magnetic source) and the RF coil. It is very strict for the homogeneity of the static magnetic field intensity of the magnetic source, so the cost of the magnetic source is more expensive in the entire nuclear magnetic resonance instrument. The magnetic source generally consists of electromagnet, permanent magnet and superconducting magnet. The permanent magnet basically needs not to spend on operation and maintenance and its cost of manufacture is much cheaper than the superconducting magnet. Therefore, the permanent magnet may be the only choice for the static magnetic field device if we want to use the magnetic resonance instrument as an analyzer for production by reducing price. A new probe magnet was developed on the basis of the permanent magnet ring in this paper to provide a technological way for reducing the manufacturing cost, weight and volume of the existing nuclear magnetic resonance instrument (including MRI) probe.

• 한국산학기술학회논문지
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• 제17권4호
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• pp.615-621
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• 2016

본 연구는 정부R&D지원과제에서 정부R&D지원비율이 높을수록, 기업의 R&D행위와 의지에 도덕적 해이(moral hazard) 또는 대리인문제(agency cost)가 발생하여 지원단위당 기술적 성과가 낮게 산출되지 않을까 하는 의문에서 출발하였다. 본 연구에서는 정부입장에서 수혜기업의 모든 정보를 다 알 수 없어 정보비대칭이 발생하고, 기업입장에서는 총 R&D비용에서 정부지원비중이 커질수록 기업의 도덕적 해이가 발생하여 이로 인해 지원단위당 기술적 성과가 낮아질 수도 있는 개연성을 검증키 위해 정부 R&D지원과제에서 [정부R&D지원금/자기R&D비용] 비율이 기술적 성과에 유의적인 (-)의 영향을 미칠 것인가를 검증하고자 한다. 표본기업은 한국에서 '00-'09년까지 "지역공공기술개발지원사업" 수혜기업이며, 분석방법은 회귀분석 등을 사용하였다. 독립변수는 총R&D비용에서 [정부R&D지원금/자기R&D비용]비율을 사용하였고 종속변수는 출원특허건수, 등록특허건수를 사용하였다. 통제변수로 기업규모 및 총 R&D비용을 사용하였다. 분석결과는 다음과 같다. 정부 R&D지원비율이 높을수록, 지원단위당 기술적 성과와 유의적인 (-)의 관계가 있는 것으로 나타났다. 이는 정부 R&D지원제도에서 수혜기업들의 R&D활동에서 대리인문제(도덕적 해이)가 발생할지도 모른다는 것을 의미하며 정부 R&D지원제도의 개선시, 이를 고려할 필요가 있다는 것이다.

• 한국융합학회논문지
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• 제4권2호
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• pp.15-20
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• 2013

본 연구는 대형유통업체와 거래 관계에 있는 제조업체가 대형유통업체가 보유한 물류창고를 활용하는 데에 따른 물류비용의 효율성을 측정하기 위한 요인들을 도출하는데 목적을 두고 있다. 대형유통업체와 거래를 하고 있는 제조업체가 물류 방식을 결정할 때 대형유통업체의 물류창고를 이용하거나 혹은 제조업체가 보유한 자체 물류창고 및 이미 활용하고 있는 외주 물류창고를 이용할 수가 있다. 이 때 제조업체가 어떠한 물류창고를 이용하는가에 따라 물류비용의 효율성은 달라질 것이다. 또한 제조업체가 이용할 물류창고를 결정하게 하는 다양한 요인들이 있을 것이다. 이에 본 연구에서는 제조업체가 이용할 물류창고 결정 요인으로 제조업체와 유통업체 간의 시장지배력과 같은 영향력 변수로써 사업 환경의 불확실성의 정도, 제조업체가 보유한 역량, 제조업체와 대형유통업체의 거래 특성 요인들을 도출하였으며, 이들 요인은 물류창고 비용효율성을 측정할 수 있는 지표로 활용할 수 있을 것이다.

• 기술혁신연구
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• 제5권1호
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• pp.1-14
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• 1997

Firms prefer in some specific conditions cooperative R&D to non-cooperative for developing technology. Previous studies on the conditions show firms want to choose cost-sharing type of cooperative R&D (the CS-RJV) rather than non-cooperative one when target technology is either 'relatively easy' or 'relatively difficult', and to join multiple-research or pararell-research type of cooperation (the PR-PJV) than to compete each other if technology is only 'relatively easy'. However, by introducing technological leakage as well as difficulty of technology. it is shown that this seemingly contrasted phenomenon almost disappears ; the PR-RJV can be also preferred by firms even is case of 'relatively difficult' technology only if there exists some extent of a technological leakage.

• Smart Structures and Systems
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• 제7권3호
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• pp.185-198
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• 2011

The promise of biomimetic smart structures that can function as sensors and actuators in biomedicine is enormous. Technological development in the field of stimuli-responsive shape memory polymers have opened up a new avenue of applications for polymer-based synthetic actuators. Such synthetic actuators mimic various attributes of living organisms including responsiveness to stimuli, shape memory, selectivity, motility, and organization. This article briefly reviews various stimuli-responsive shape memory polymers and their application as bioactuators. Although the technological advancements have prototyped the potential applications of these smart materials, their widespread commercialization depends on many factors such as sensitivity, versatility, moldability, robustness, and cost.

• 한국전기전자재료학회논문지
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• 제27권12호
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• pp.776-791
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• 2014

A marvellous solar cell technology system based on organometal halide perovskites has recently shown an unprecedented progress in power conversion efficiency (PCE); the certified one of 17.9% and unconfirmed of 19.3%, as well as the estimated electricity with a generating cost lower than the half of conventional methods based on fossil fuels. In this report the present status of stability with regards to moisture, ambient temperature, ultraviolet and lead toxicity as well as the key technological developments for the early commercialization are covered. Comprehensive understanding of material science for perovskites is required, together with complete encapsulation technologies beyond those for OLEDs, in order to ensure a 20-year-longer-than lifetime of PSCs (perovskite solar cells) and the stability according to the IEC 61646 damp heat test standard, which will result in the replacement of silicon solar cells with PSCs.

• Advances in Energy Research
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• 제8권4호
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• pp.233-241
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• 2022

Biodiesel is a non-polluting and non-toxic energy source that can replace conventional diesel. However, the higher production cost and raw material scarcity became challenges that obstruct the commercialization of biodiesel production. In the current investigation, fried cooking oil is used for biodiesel production in a hydrodynamic cavitation reactor, thus enhancing raw material availability and helping better waste oil disposal. However, due to the cavitation effect inside the reactor, the hydrodynamic cavitation reactor can give biodiesel yield above 98%. Thus, the use of orifice plates (having a different number of holes for cavitation) in the reactor shows more than 90% biodiesel yield within 10 mins of a time interval. The effects of rising temperature at different molar ratios are also investigated. The five-hole plate achieves the highest yield for a 4.5:1 molar ratio at 65℃. And the similar result is predicted by the response surface methodology model; however, the optimized yield is obtained at 60℃. The investigation will help understand the effect of hydrodynamic cavitation on biodiesel yield at different molar ratios and elevated temperatures.