• 식품과학과 산업
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• 제43권1호
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• pp.35-52
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• 2010

• 식품과학과 산업
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• 제43권3호
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• pp.44-47
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• 2010

• Journal of Biosystems Engineering
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• 제31권6호
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• pp.514-523
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• 2006

Production of green pepper has been increased due to customer's preference and a projected ten-year boom in the industry in Korea. This study was carried out to develop an automatic grading and sorting system for green pepper using machine vision. The system consisted of a feeding mechanism, segregation section, an image inspection chamber, image processing section, system control section, grading section, and discharging section. Green peppers were separated and transported using a bowl feeder with a vibrator and a belt conveyor, respectively. Images were taken using color CCD cameras and a color frame grabber. An on-line grading algorithm was developed using Visual C/C++. The green peppers could be graded into four classes by activating air nozzles located at the discharging section. Length and curvature of each green pepper were measured while removing a stem of it. The first derivative of thickness profile was used to remove a stem area of segmented image of the pepper. While pepper is moving at 0.45 m/s, the accuracy of grading sorting for large, medium and small pepper are 86.0%, 81.3% and 90.6% respectively. Sorting performance was 121 kg/hour, and about five times better than manual sorting. The developed system was also economically feasible to grade and sort green peppers showing the cost about 40% lower than that of manual operations.

• 한국실천공학교육학회논문지
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• 제3권2호
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• pp.27-33
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• 2011

전 세계적으로 기후 변화로 일컬어지고 있는 환경에 대한 문제들이 모든 산업 전반에 제기되면서 그 동안 유지되던 패러다임에서 벗어나 '친환경, 저탄소, 녹색성장' 등이 새로운 패러다임이 제시되고 있다. 새롭게 제시되고 있는 패러다임의 핵심은 일상생활 및 산업 전반에서 발생되고 있는 탄소 절감을 통해 환경을 보호하여 미래를 대비하자는 것이며 이러한 부분에 있어서 우리나라는 녹색인증 및 녹색기술의 개발을 장려하고 녹색성장을 중요한 정책 중의 하나로 채택하고 시행하고 있다. 공공기관 및 기업들은 IT기술을 이용하여 업무 간에 발생하는 탄소절감을 하기 위해 많은 연구 및 계획들을 수립하고 실행에 옮기고 있다. 우리나라는 IT 분야의 기술력 및 모바일기기 등을 이용하여 여러 부분에서 발생되고 있는 종이 문서들 중 대체가 가능한 부분을 찾아내어 전자문서로 사용하는 곳이 많다. 그러나 여전히 은행등에서 사용되고 있는 순번발권기에서 발행되고 있는 순번 대기표는 하루에 수천에서 수만장씩 사용 되고 있다. 이렇게 발권된 순번 대기표는 거의 모든 양이 바로 버려지고 있고 재활용도 되지 않는다. 본 논문에서는 '저탄소 녹색성장'을 실천하기 위한 공학교육의 사례로서 누구나 흔히 경험하고 있는 기존 순번대기표를 대체할 수 있는 어플리케이션 시스템을 제안한다.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2015년도 춘계학술대회
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• pp.801-810
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• 2015

세계적으로 진행되는 기후변화에 대응하기 위한 국제사회의 노력과 더불어, 그린 IT의 기술도 빠르게 발전하고 있다. 기후변화 대응형 그린 IT 기술이 사회과학의 어젠다로 등장함에 따라서 그린 IT의 개념은 IT의 녹색화와 IT에 의한 녹색화라는 두 가지 형태로 진화하였다. 이와 같은 맥락에서 이 연구는 기후변화에 대응하기 위한 그린 IT 연구동향을 검토하고, IT의 녹색화와 IT에 의한 녹색화라는 개념을 심층적으로 검토한다. 나아가서 그린 IT를 평가하기 위한 지표로서 생애주기평가(LCA)를 제시한다. 본 연구의 결과는 기후변화 시대의 그린 IT의 정책적인 문제점 해결과 지속적인 연구를 하는데 기여하고, IT의 녹색화와 IT에 의한 녹색화 개념을 제시함으로써 한국 IT 산업의 발전에 기여할 것으로 기대한다.

• 한국시스템다이내믹스연구
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• 제14권3호
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• pp.25-49
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• 2013

As global competition for green car, that is environmentally friendly car, is getting tougher, the governments and the related industries are putting their core efforts in its diffusion. However, the green car sales are disappointing so far. To overcome the gridlock, it is necessary to develop concrete analytical framework to understand the diffusion process. Based on causal loop analysis from the previous work, we have identified main variables and relationships of them in the diffusion process and developed a stock-flow diagram and mathematical formula for the main components. The model would be applied for further quantitative simulation on the diffusion process of green car and other innovative goods as well. Also, we have suggested constructive insights for the policy makers and for the related industries. First, it is important to increase consumers' willingness to consider through marketing and word of mouth to accelerate the diffusion process. Second, in the perspective of the industry, the market share of green car should be increased at the earliest possible stage and this could be done by enhancing each components of green car attractiveness(e.g. price, driving range, social infra). Third, companies should develop a balanced investment between consumer and technology sector through a flexible financial policy. Fourth, the government continuously has the role of investing in the related R&D and social infra building. We expect the green car diffusion model and related formula from the research can provide meaningful tools to analyze the diffusion process of other new and innovative goods based on its deep researched literature review.

• 복식문화연구
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• 제15권6호
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• pp.952-964
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• 2007

This study is about the design for environment which is central social interest in recent days. This study focused on both experimental designs which convey meanings and practical designs which can be produced within the fashion industry and then influence on the wide range of consumer, human and surrounding environment. The purposes of this study are to categorize national and global fashion designs for environment, to analyze data based on the fashion pipeline from planning to discard, to suggest systematic actions, and to establish fashion design for environment model. Through these processes, this study helps in making fashion designs for environment more understandable, and demonstrates one future direction for using environment as fashion industry's innovative strategy. This study attempts to create business and at the same time suggests design actions based on social belief. The results of this study are following. Fashion designs for environment were categorized by organic fabric, new-to-the-world fabric, reduce, multi-function, reproduce, order-made, recycle, and reuse. The results show that fashion designs for environment have been implemented throughout the fashion pipeline, and applied the concepts of design for environment including green, sustainable slow, and natural design principles. Furthermore, labelling and service from supply side, green purchasing from demand side, and integration from both sides are suggested as company's and society's systematic actions.

• 자원ㆍ환경경제연구
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• 제20권2호
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• pp.291-308
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• 2011

정부의 '저탄소 녹색성장' 정책기조의 실현가능성 여부는 에너지절약 자본시설에 투자할 경우 과연 산업의 생산성 증가로 이어질 수 있는지 여부에 달려 있다. 본 논문에서는 1차 금속산업을 대상으로 쌍대 비용함수로부터 총 요소생산성을 정의하고 산업생산성 증가의 요인별 분석을 통하여 에너지효율화 투자의 생산성 증가 파급효과를 측정하였다. 1982년~2006년 기간 동안 에너지효율화 투자로 인하여 평균적으로 연간 생산성은 1.16% 포인트 증가한 것으로 추정되었다. 또한 규모경제효과는 에너지효율화 투자의 생산성 증가 기여도를 향상시키는 것으로 나타났다.

• Journal of Construction Engineering and Project Management
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• 제4권2호
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• pp.12-22
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• 2014

Over the last decade, Saudi Arabia has experienced significant economic increases as evidenced by the 30% growth in its gross domestic product; furthermore, the construction industry has increased 10% in the same time period. Due to this significant growth, the construction industry is encountering issues related to construction quality resulting in significant waste and associated environmental impacts. In this research, we applied our previously developed framework that integrates three different methods-Lean, Green, and Six-sigma - to a residential construction complex in Saudi Arabia. Our aim of this case study was to explore the application of the framework in practice to glean quantitative results and further validate the framework. In the case study, we used the developed framework to identify a significant issue related to quality and delays - final completion of 53 residential units was delayed because of failed exterior buildings surfaces. We then used the framework to define the causes behind the defects via a field investigation of the 53 units. Of the defect, construction execution was responsible for 43% of the defect, 31% untrained workers, 19% unfavorable construction weather condition, with 7% accounting for other issues. A procedure was developed in concert with the construction manager and overall developer reducing the amount of rework and waste causes revealed by the field examination and the framework. Although two steps were added to the original construction process to overcome waste causes, still save a lot of resources and reduces environmental impact. In summary, we found that the Lean, Green, Six-sigma framework increased productivity, quality, and reduced waste.

• Journal of Korea Trade
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• 제23권5호
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• pp.27-44
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• 2019

Purpose - The purpose of this paper is to analyze the net effect of the green total factor productivity (GTFP) of China's manufacturing industry from the China-Korea Free Trade Area (China-Korea FTA) quantitatively. Design/methodology - Firstly, the Global Malmquist-Luenberger (GML) index based on the SBM directional distance function is used to measure the GTFP of China's manufacturing and analyze the driving force for its growth. Secondly, the regression discontinuity quantitative analysis is used to determine the impact of the China-Korea FTA on China's manufacturing GTFP. Findings - Our main findings can be summarized as follows: the China-Korea FTA has promoted the GTFP of China's manufacturing with an effect evaluation mainly resulting from green technology progress. And there is industry heterogeneity in the policy effect on the manufacturing GTFP due to the China-Korea FTA. Namely, policy promotion from the China-Korea FTA is more effective on the GTFP of equipment manufacturing than it is on those of other industries. Originality/value - First, an evaluation and analysis of the GTFP development of China's manufacturing that employs GML index based on SBM directional distance function. Second, a quantitative estimate of China-Korea FTA's net effect on China's manufacturing industrial GTFP that uses regression discontinuity analysis, which is considered to be the closest method to natural experiments and superior to other causal inference methods. Third, an in-depth discussion of the practical steps that China's manufacturing can take to improve GTFP development and integrate China-Korea FTA construction into economic development.