• 한국철도학회:학술대회논문집
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• 한국철도학회 2009년도 춘계학술대회 논문집
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• pp.247-250
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• 2009

Awareness of resource conservation and pollution prevention has been continually increasing. The proven benefits from CFRP's unique combination of light weight and high strength compare to conventional material is well suited for minimizing fuel consumption during vehicle in particular rail operation. Responding the awareness, this work intends to study CFRP's recycling method that is not only technical performance but also environmental view point. According to prior work of technical performance test, this work aims at quantifying the footprint of energy and GHG derived from the two appreciated performance of pyrolysis and acids recycling methods. The streamline LCA is the concept for systematic assessment. The boundary is scoped at the recycling activity, consequently, the data in and out from the specific target activity are obtained under the gate to gate data collection. Its function is recovery carbon fiber. To count and compare function, functional unit is set at 60% of recycling rate. Korea database is mainly source for acquiring the footprint of both. The numerical results presented that the energy footprint of acids and pyrolysis is 164.95 and 1,199.88 MJ-eq., respectively. Meantime, the GHG footprint of is 1,196.22 and 5,916.08 g CO2 eq. for acids and pyrolysis. In summary, the acids recycling method is, in regarding the environmental performance, better than pyrolysis recycling method.

• Journal of Nutrition and Health
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• 제46권5호
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• pp.461-469
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• 2013

본 연구는 2012년 9월 5일부터 10월 4일까지 1개월 간 서울에 위치한 스포츠센터에서 규칙적으로 운동을 하는 20~30대 남성 120명 여성 127명을 대상으로 체형인식, 운동 목적, 식생활 관련 지식 및 행태, 영양섭취 실태를 조사하였다. 비만 분포를 조사한 결과, 남성은 BMI 23 이상인 과체중 및 비만의 비율이 69.2%로 나타난 반면 여성은 25.2%로 나타나 성별에 따른 비만 분포의 유의적인 차이를 보였다 (p < 0.001). 현재 체형에 대한 만족도에서는 남성은 '보통이다' (40.8%)가 가장 높게 나타난 반면, 여성은 '약간 뚱뚱하다' (42.5%)가 가장 높게 나타나 남성에 비하여 여성의 현재 체형에 대한 만족도가 유의적으로 낮았다 (p < 0.001). 남성과 여성의 식생활 관련 지식 및 행태의 차이는 유의하지 않은 것으로 나타났다. 에너지섭취 비율은 남성의 경우 에너지필요추정량의 80.8%, 여성은 에너지필요추정량의 76.9%로 남녀 모두 미달되는 섭취량을 보였다. 또한 단백질섭취비율은 남성이 권장섭취량의 197.7%, 여성이 권장섭취량의 142.6% 수준을 섭취하는 것으로 나타나 남녀 모두 과잉섭취하고 있었다. 칼슘섭취비율은 남성과 여성에서 각각 권장섭취량의 63.5%, 72.1% 수준으로 나타나 모두 미달되었다. 체형인식에 따른 열량영양소 섭취량을 조사한 결과, 남성은 과체중으로 인식하는 경우가 저체중 및 정상체중으로 인식하는 경우보다 에너지와 탄수화물의 섭취량이 유의적으로 적었으며 (p < 0.01), 여성은 과체중으로 인식하는 경우와 저체중 및 정상체중으로 인식하는 경우의 열량영양소 섭취량이 유의적 차이가 없었다.

• 유통과학연구
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• 제19권9호
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• pp.53-64
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• 2021

Purpose: The current study aims and reviews the current state of research in green awareness' distribution structure using the ecological theory of Ted Hughes who was regarded as one of the best English poets of the 20 century. Ted poetry has innovated ecological distribution. It has inspired so many young people to have a positive energy impact on the environment. Research design, data and methodology: Action research design is an approach used extensively in qualitative content analysis. This design starts by adopting an exploratory claim that develops the research objectives, hence instigating the action process, which involves several strategies. This type of design involves a cyclic process of stance then action. Results: According to the investigation, there are nine solutions that can deal with the green distribution based on previous literature review, applying an ecological approach of Ted Hughes to green awareness distribution. The solutions figured out that Ted's novels had an innovative impact on the environment as it is clear that information is given to society. Conclusions: It is observed that having a highly professional environment is good enough for a structure to go green. But, on the other hand, polluting our environment can endanger species by causing health diseases and environmental problems.

• 정보보호학회논문지
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• 제29권4호
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• pp.867-875
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• 2019

원자력을 포함한 산업제어시스템에 대한 사이버보안 사건이 증가함에 따라 기술적 보안 조치와 더불어 사이버보안교육 훈련 및 사이버 비상사건 대응 훈련이 요구되고 있다. 대상 설비를 운영 관리하는 담당자들에게 효과적인 사이버보안 인식 및 교육 훈련을 위해서는 센서 수준에서부터 발전소 운영 상태까지 사이버공격으로 인한 영향 분석이 가능한 훈련용 시스템이 요구된다. 이에 본 논문에서는 원자력 운영 상태를 모사하는 발전소 시뮬레이션과 특정 계통의 시뮬레이션 및 물리장치를 포함하는 원자력발전소 사이버보안 훈련용 HIL 시스템을 개발하였다. 이를 통해 계통담당자 및 사이버보안조직을 대상으로 하는 기술적 훈련, 사이버보안 조직 및 비상사건대응 조직을 대상으로 하는 특화된 사이버보안 훈련을 지원하고자 한다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제10권2호
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• pp.462-483
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• 2016

The research on optimization of cellular network's energy efficiency (EE) towards environmental and economic sustainability has attracted increasing attention recently. In this survey, we discuss the opportunities, trends and challenges of this challenging topic. Two major contributions are presented namely 1) survey of proposed energy efficiency metrics; 2) survey of proposed energy efficient solutions. We provide a broad overview of the state of-the-art energy efficient methods covering base station (BS) hardware design, network planning and deployment, and network management and operation stages. In order to further understand how EE is assessed and improved through the heterogeneous network (HetNet), BS's energy-awareness and several typical HetNet deployment scenarios such as macrocell-microcell and macrocell-picocell are presented. The analysis of different HetNet deployment scenarios gives insights towards a successful deployment of energy efficient cellular networks.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2004년도 춘계학술대회 논문집
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• pp.200-204
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• 2004

It is a global consent that we should conserve our energy consumption, due to our awareness to the environmental problems and the limitedness of the natural resource. In the country, the level of energy consumption is more than it is needed, according to its living standard and the proportion of resources imported from other countries. Educational program focused on energy conservation is essential to overcome these problems. This paper outlines a basic study on the development of an energy conservation education program for children. This program makes students aware of the importance and difficulties in energy conservation. The students can then make their own contribution and besides circulation of resources and improvement of health problems.

• KIEAE Journal
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• 제11권3호
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• pp.19-30
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• 2011

This study examined apartment residents' energy-lifestyle, and their energy consumption patterns by energy-lifestyle. The major findings are as follow: 1)In order to identify energy lifestyle, three dimensions - value of life, energy consuming behavior and energy awareness - were defined by literature reviews, and each dimension was tested to define components. 2)The scores of the 14 factors that were defined by factor analysis on the three dimensions of the energy lifestyle were subject to cluster analysis, and then lifestyle was categorized into five groups. G1 is very negative, and indifferent to energy waste or saving at home. G2 is passively carrying out energy saving activities at home, only within their comfort. G3 is aware of energy saving, and more actively keeping energy saving behavior in their everyday lives, while they also show energy waste behavior at the same time. G4 is particularly indifferent to energy costs, and presenting energy squandering behaviors. G5 is better aware of energy saving than other groups, and carrying out energy saving behaviors in their everyday lives. This study would be of help to establish energy saving management and education plans in apartments.

• 문화기술의 융합
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• 제3권4호
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• pp.181-184
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• 2017

우리나라는 세계 10대 에너지 소비국으로서 총에너지의 97%를 해외 수입에 의존하며 2007년 에너지 수입액은 950억불로 전체 수입액의 26.6%를 차지함으로써 2008년과 같은 에너지 위기에 대하여 근본적이며 장기적인 대책 수립이 절실히 요구되고 있는 실정이다. 전 세계적으로 에너지 절감과 저탄소 경제 시대 대응을 위해 세계 각국이 발빠르게 움직이고 있음에도 불구하고 국내의 움직임은 상대적으로 더디게 진행되고 있다. 이에 본 논문에서는 병원 시설물을 가정 하에 중대형 시설물에 구축된 Light Things(조명, 사이니지, 디스플레이 등) 제어를 위한 IoT 데이터 수집장치(Gateway)를 개발함으로써, Light Things로 인해 소비되는 에너지 소비율을 효과적으로 제어할 수 있는 Light Things 제어 알고리즘 및 데이터 수집장치(Gateway) 개발 기술에 대하여 제안한다.

• 한국학교보건학회지
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• 제29권3호
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• pp.218-225
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• 2016

Purpose: The purpose of this study was to investigate the factors affecting energy drinks consumption among adolescents in South Korea. Methods: The study is a secondary analysis. Using statistics from the 11th (2015) Korea Youth Risk Behavior Web-based Survey, any variations among the subjects were presented as percentages and analyzed by $x^2$ test and logistic regression analysis. The study sample comprised 68,043 middle and high school students in South Korea. Results: In Model 1 including general characteristics, the significant factors of energy drinks consumption were gender, weekly allowance, cohabitation with family. and economic status. In the final model where health-related characteristics were added, the significant factors were gender, school type, weekly allowance, cohabitation with family, stress level, sadness, drinking, smoking and walking days. Conclusion: The result suggests that intensified education on energy drinks consumption is needed not only at schools, but in the whole community. Also, adolescents' awareness of potential health effects of energy drinks, in particular when mixed in alcoholic beverages, should be increased through health education.

• 한국안전학회지
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• 제31권1호
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• pp.139-147
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• 2016

Nuclear energy is considerably cheap and clean compared to other fossil fuels. Yet, there are rising safety concerns of nuclear power plants including the possibility of radiation releasing nuclear accidents. In light of the Fukushima nuclear crisis in 2011, Japan has been re-evaluating their existing energy policies and increasing the share of alternative energy. This paper first tracks the major historical changes of energy policy in Japan by time period. Next, energy security, reignited concerns and alternative energy are covered to examine Japan's energy security situation and its transition after the Fukushima disaster. Lastly, a short survey based on thematic analysis was conducted in South Korea and Japan to understand the public awareness of nuclear. This paper postulates that the case of Fukushima will contribute to establish and operate a safe-future nuclear program in South Korea, given that the country is not only geographically neighbouring Japan but also the world's fourth largest producer of nuclear energy.