• 국제지역연구
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• 제15권3호
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• pp.307-324
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• 2011

세계 각국은 침체에 빠진 경제를 재건해야 하는 동시에 지구온난화로 촉발된 환경문제까지 고려해야 하는 상황에 놓였다. 이 같은 상황에서 기존의 다양한 선행 연구는 생산증가와 환경보호를 동시에 수용하는 녹색 생산성을 정확하게 분석하지 못한다는 문제를 가지고 있다. 이러한 한계를 극복하기 위해 본 논문에서는 녹색 생산성이라는 새로운 개념을 제시하고 그 도출 방법을 체계화하였다. 뿐만 아니라 녹색생산성에 대한 영향을 미치는 결정적 정책변수를 파악하기 위해 1단계 DEA 분석을 통한 생산성 지수를 비교하고, 이에 기초하여 2단계 붓트렙 회귀분석을 실시하여 그 결정요인을 분석하였다. 1단계 실증분석의 결과, 미국, 일본, 유럽연합에 비해 한국의 녹색 생산성 지표는 크게 미흡한 것으로 나타났으며, 그 원인을 찾기 위한 2단계의 회귀분석 결과, 국가총생산, 에너지집약도, 탄소집약도, 자본집약도, 노동집약도의 변수가 정부의 환경오염 감축 노력보다 중요한 것으로 나타났고, 이를 위해 요소투입형 생산구조에서 요소의 질적 고도화가 필요함을 지적하였다.

• 대한지리학회지
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• 제46권6호
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• pp.751-766
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• 2011

본 연구는 평택 당진항을 대상으로 화물수송량에 의한 밀집도로 항세권의 계층성을 파악하고, 항만의 수출입량 증대를 위한 활성화방안을 알아보고자 한다. 중국과의 무역증대를 예상하여 건설된 평택 당진항은 자동차, 천연가스를 주축으로 수출입하는 항구로서의 기능이 더욱 강화되어 배후지와 지향지의 항세권은 확대되고 있으나 여전히 반경 70km의 핵심권에서 무역량이 많아 전국적인 항만으로 나아가는 데는 항로의 다변화와 더불어 여러 지역의 화주와 운송업자 및 선사로부터 인정받는 항만의 활성화 정책이 실행되어야 국제적 중심 항으로서의 위상과 기능이 제고될 것이다.

• Journal of Korea Trade
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• 제26권7호
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• pp.19-42
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• 2022

Purpose - This study investigates the effects of foreign investor ownership on firm innovation and the different stages of the firm innovation process for business group affiliation (affiliated firms) and nonaffiliated firms. Design/methodology - Research and development (R&D) intensity is used as a proxy for firm innovation. We use a sample of 7,655 firm-year observations of Korean listed firms from 2001 to 2015. To identify the distinct features of business group affiliation and how foreign investor ownership affects firm innovation, we divide the sample into affiliated and non-affiliated firms. Moreover, we classify total R&D expenditures as research and development expenditures. Findings - This study finds a positive relationship between foreign investor ownership and innovation in non-affiliated firms. However, the foreign investor ownership's role in facilitating firm innovation does not influence business group affiliation. Moreover, the results show that foreign investor ownership encourages firms to increase research expenditures, which is the amount spent in the early stages of a firm's R&D process. Originality/value - Existing studies have overlooked the distinct features of business group affiliation and the different characteristics of research and development expenditures. Thus, this study considers the distinct features of business group affiliation and investigates how foreign investor ownership affects different stages of R&D activities.

• 무역학회지
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• 제42권3호
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• pp.49-74
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• 2017

본 연구는 기업이 국제 특허 활동을 통해 자사 혁신의 해외 경쟁 우위와 현지 경쟁 기업들에 대한 지식을 습득하여 수출 성과를 높일 수 있지만 기업 규모와 연령에 따른 조직 학습의 비효율성 때문에 국제 특허 활동으로 인한 학습 효과는 기업 규모와 연령에 의해 약화될 수 있다는 가설들을 제시한다. 한국 제약 기업들을 대상으로 실증 분석한 결과 국제 특허 출원 집중도는 수출 집중도에 긍정적인 영향을 미쳤다. 그리고 기업 규모와 연령이 증가할수록 국제 특허 출원 집중도와 수출 집중도 간의 정의 관계는 약화되었다. 실증 분석 결과는 기업의 해외 시장에 대한 지식 습득은 해외 시장에서의 직접적인 사업 운영 외에도 다양한 경로를 통해 이루어질 수 있으며 이러한 외부 지식 학습에 있어 중소기업 및 신생기업이 상대적인 강점을 지닐 수 있음을 시사한다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 학술회의 논문집 정보 및 제어부문 A
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• pp.191-194
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• 2003

In this paper, we propose a new accurate and robust image mosaic technique of the mural underdrawing taken from the infra-red camera, which is based on multiple image registration and adaptive blending technique. The image mosaicing methods which have been developed so far have the following deficits. It is hard to generate a high resolution image when there are regions that do not have features or intensity gradients, and there is a trade-off in overlapping region site in view of registration and blending. We consider these issues as follows. First, in order to mosaic Images with neither noticeable features nor intensity gradients, we use a Projected supplementary pattern and pseudo color image for features in the image Pieces which are registered. Second, we search the overlapping region size with minimum blending error between two adjacent images and then apply blending technique to minimum error overlapping region. Finally, we could find our proposed method is more effective and efficient for image mosaicing than conventional mosaic techniques and also is more adequate for the application of infra-red mural underdrawing mosaicing. Experimental results show the accuracy and robustness of the algorithm.

• 유통과학연구
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• 제18권1호
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• pp.71-83
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• 2020

Purpose: Because the energy consumption, economic growth and logistics development are still the heated topics which have attracted many scholars' interests. Therefore, this paper attempts to analyze the effect of logistics development on the economic growth, explore the effect of the economic growth on energy consumption and to discuss the effect of the logistics development on energy intensity. Research design, data and methodology: Using the panel data over the period 2000-2017 of 156 countries and employing the country & year fixed effect model, system generalized method moments and random effect model, the empirical analyses of this propositions are performed. Results: The empirical findings present that the logistics development is positively related to the economic growth. The energy consumption in the t-1 period and economic growth are positively related to the current energy consumption. The logistics development is negatively related to the energy intensity. Meanwhile, the empirical findings also indicate that there is a great difference about these effects among the four sub-samples (low income 18 countries, low middle income 49 countries, upper middle income 44 countries, high income 49 countries). Conclusions: Based on the evidences in this paper provided, we can find that these variables can affect each other.

• Asia Pacific Journal of Business Review
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• 제3권1호
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• pp.19-38
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• 2018

The energy intensity of Nepal is economically not worthy, lacks eco-friendly and importantly not sustainable, and almost four times the average global energy intensity. Considerable efforts have been exercised to reduce the energy gap yet, it is still much to achieve. Nation priority on energy sector was envisaged with promulgation of investment friendly rules and law in hydropower and renewable technology even though, could not harness the sufficient energy. In amid of this acute energy crisis, the government launched the Nepal Energy Efficiency Programme (NEEP) with technical assistance from German International Cooperation (GIZ). Energy Efficiency (EE) practice is the most cost-effective method to reduce the supply and demand gap, reduce on greenhouse gases and pollution, and deter on import of petroleum products which finally improves on trade imbalance. This paper had proposed a framework of energy management team to promote energy efficient technologies in residential consumer. The energy management teams study the past records of energy use pattern of consumers and suggest appropriate technology for energy saving options. The paper provides some reviews of energy efficiency initiatives undertaken by the concern regulatory body which highlights the current status. The comprehensive knowledge acquired through exploratory research is implemented in this paper to identify the various barriers that domestic consumer is experiencing towards the active participation in energy efficiency program launched by the Government of Nepal.

• 센서학회지
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• 제30권1호
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• pp.56-60
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• 2021

In this study, the relationship between the transmitted light intensity and full-width-at-half-maximum (FWHM) of a Fabry-Perot filter was investigated. The measured refractive indices and absorption coefficients of the fabricated thin films were applied to the Fabry-Perot filter via simulations using optical software. Although considerable research has been conducted on Fabry-Perot filters, this study focused on the usefulness of 4.26-㎛ infrared filtering in carbon dioxide detection. Optical analysis was performed considering the effects of the thickness, refractive indices, and number of thin films in a distributed Bragg reflector. Ultimately, a clear trade-off relationship was observed wherein the transmitted light intensity decreased as the number of multilayers increased; however, the FWHM was observed to be narrower.

• 산경연구논집
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• 제1권1호
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• pp.23-31
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• 2010

본 연구는 부동산 시장에서 시장지향성의 요인인 시장정보 창출과 시장정보 확산, 시장정보에 대한 반응이 부동산 거래성과에 미치는 영향을 알아보고 이 과정에서 환경적 요인인 시장 격변성과 경쟁강도에 따라 부동산 시장에서 고객의 반응을 연구하여 시장의 범위에 최종 고객은 물론 부동산거래업자 등을 포함시킴으로써 보다 광범위한 마케팅 패러다임을 지향하고자 하였다. 따라서 부동산 유통과정에서 나타나는 시장지향성의 특성을 통해 부동산 거래성과에 미치는 영향에 관한 연구를 목적으로 연구대상을 결정하고 설문을 통한 실증분석을 하였다. 이번 연구 결과로 새로운 고객과의 관계와 부동산 시장에 대한 가능성을 확인하고 보다 적극적인 마케팅 전략을 수립하여 부동산 거래성과를 새로운 방향을 모색하는데 그 목적이 있다.

• 한국지진공학회논문집
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• 제25권2호
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• pp.59-69
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• 2021

Historical records of earthquakes are generally used as a basis to extrapolate the instrumental earthquake catalog in time and space during the probabilistic seismic hazard analysis (PSHA). However, the historical catalogs' input parameters determined through historical descriptions rather than any quantitative measurements are accompanied by considerable uncertainty in PSHA. Therefore, quantitative assessment to verify the historical earthquake parameters is essential for refining the reliability of PSHA. This study presents an approach and its application to constrain reliable ranges of the magnitude and corresponding epicenter of historical earthquakes. First, ranges rather than specific values of ground motion intensities are estimated at multiple locations with distances between each other for selected historical earthquakes by reviewing observed co-seismic natural phenomena, structural damage levels, or felt areas described in their historical records. Based on specific objective criteria, this study selects only one earthquake (July 24, 1643), which is potentially one of the largest historical earthquakes. Then, ground motion simulations are performed for sufficiently broadly distributed epicenters, with a regular grid to prevent one from relying on strong assumptions. Calculated peak ground accelerations and velocities in areas with the historical descriptions on corresponding earthquakes are converted to intensities with an empirical ground motion-intensity conversion equation to compare them with historical descriptions. For the ground motion simulation, ground motion prediction equations and a frequency-wavenumber method are used to consider the effects of possible source mechanisms and stress drop. From these quantitative calculations, reliable ranges of epicenters and magnitudes and the trade-off between them are inferred for the earthquake that can conservatively match the upper and lower boundaries of intensity values from historical descriptions.