• 무역학회지
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• 제47권1호
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• pp.1-12
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• 2022

This study analyzes FCEV among measures to respond to climate change policies. In particular, it proposes alternatives to solve this problem in the trade industry, which relies on transportation sectors with high greenhouse gas emissions such as exports and imports of goods. Therefore, when FCEV is introduced in the transportation sector, changes in CO2 emissions, a greenhouse gas, and changes in logistics costs for changes in CO2 emissions are set through scenarios to evaluate the impact on product trade, such as imports and exports. As a result, the increase in logistics costs due to carbon dioxide emissions affected the import and export volume of goods, and when FCEV was introduced, the export volume would increase by up to 5.6%, and the import volume by up to 30%. In addition, CO2 emissions decreased to about 60% in 2050. Therefore, the introduction of FCEV in the transportation sector will greatly contribute to increasing sales in the trading industry and will be able to solve environmental problems such as greenhouse gas reduction.

• 전기의세계
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• 제22권2호
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• pp.11-18
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• 1973

This paper reports some results of Si and SiO$_{2}$ films obtained from the expitaxial growth by hydrogen reduction of SiCI$_{4}$ with a hydrogen and carbon dioxide mixture in an epitaxial-deposition chamber. The deposited Si and SiO$_{2}$ are studied by observing the process parameters affecting the rate of deposition, and the quantitative properties at the interface of Si and SiO$_{2}$ are also considered briefly according to the results of the optical absorption and the voltage-current characteristic of MOS etc. using step etching procedure for oxide films.

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2009년도 9th International Meeting on Information Display
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• pp.262-264
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• 2009

Ternary oxides with controlled band gap energy and reduced reactivity against moisture and carbon dioxide gas were designed and studied as a potential material for protective layer of ac-PDPs. The results showed a significant reduction in firing voltage and improved environmental stability.

• 한국분말재료학회지
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• 제16권5호
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• pp.310-315
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• 2009

Ultra-fine TiC/Co composite powder was synthesized by the carbothermal reduction process without wet chemical processing. The starting powder was prepared by milling of titanium dioxide and cobalt oxalate powders followed by subsequent calcination to have a target composition of TiC-15 wt.%Co. The prepared oxide powder was mixed again with carbon black, and this mixture was then heat-treated under flowing argon atmosphere. The changes in the phase, mass and particle size of the mixture during heat treatment were investigated using XRD, TG-DTA and SEM. The synthesized oxide powder after heat treatment at 700$^{\circ}C$ has a mixed phase of TiO$_2$ and CoTiO$_3$ phases. This composite oxide powder was carbothermally reduced to TiC/Co composite powder by the solid carbon. The synthesized TiC/Co composite powder at 1300$^{\circ}C$ for 9 hours has particle size of under about 0.4 $\mu$m.

• 한국항만경제학회지
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• 제25권4호
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• pp.1-20
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• 2009

녹색물류는 21세기 지구촌시대의 번영을 위해 피할 수 없는 과제로서 역물류의 활성화, 화석에너지 사용 절감을 통한 이산화탄소 배출 감소, 공동화 등을 통한 시설이용효율화를 들 수 있다. 본 연구의 목적은 녹색물류에 따른 탄소저감 관련 정책을 수립하여 시행해 오고 있는 일본, 미국, 유럽 등의 정책 내용과 선진 사례를 광범위하게 고찰함으로써 우리나라의 친환경 물류정책을 수립, 평가하는데 있어 근거자료를 제공하고자 하는 것이다. 이러한 연구목적을 달성하기 위해 국내 외 항만 및 물류센터에서의 탄소저감사업의 주요 내용과 동향에 대해 고찰하고 그에 따른 예비평가항목 및 예비평가지표를 선정하여 설문조사를 진행하였으며 설문결과에 근거하여 구성항목들의 중요도를 분석하였다. 분석결과, 수송수단 이용에 대한 제한 및 전환과 대체연료의 사용에 대한 평가지표의 가중치에서, 대체연료의 사용의 중요도가 상대적으로 높았으며, 시설 장비의 개선, 탄소배출량의 제한/감축, 물류체계의 개선, 대기시간 단축 평가지표의 상호 중요도를 분석한 결과, 물류체계의 개선의 가중치가 가장 높은 것으로 나타났다. 또한, 저감시스템 구축, 오염원 배출 저감, 친환경소재의 이용 평가지표에서는 저감시스템 구축항목이 가장 중요한 것으로 나타났다. 본 연구는 탄소저감정책 관련 각 예비평가항목 및 예비평가지표들에 대한 상호중요도를 분석함으로써 향후 우리나라에서 녹색물류 관련 정책입안자나 관련 기업담당자에게 탄소저감 사업추진에 있어 핵심이 되는 항목을 선정하는데 가이드라인을 제시해 줄 것이다.

• 한국태양에너지학회 논문집
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• 제33권2호
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• pp.108-117
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• 2013

Studies on the regulation and measurement of greenhouse gases(GHGs) emissions have been carrying out for global wanning. In order to reduce greenhouse gas emissions, many countries have been promoting the Emissions Trading System and projects of the Joint Implementation(JI) and Clean Development Mechanism(CDM). These country's GHG emissions have been measured calculation criteria based on the Intergovernmental Panel on Climate Change(IPCC) Guidelines. In order to respond to GHGs regulation, in each country, it is planing to build a Low-Carbon City. The system has been developed for calculating GHGs emissions from companies and institutions in their respective countries. However, the system can monitor the GHGs per city, has not been developed. In this paper, it is studied to design the User Interface and to develop integrated monitoring program for Low-carbon city. This program will make possible monitoring and management, statistics, and reports written by using each data in units of cities.

• 기술혁신학회지
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• 제6권4호
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• pp.535-550
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• 2003

Ever since the United Nations Framework Convention on Climate Change(UNFCCC) was agreed to stabilized greenhouse gas(GHG) concentration in the atmosphere at 1992, most countries including Korea have been developing strategic plans and implementing a number of R＆D programs to develop the measures to reduce the emission of GHG. Therefore, it is necessary to investigate the plans and programs for our country to develop more competitive technologies and to be more active and attentive in international meetings. In this paper, the energy policies of advanced countries will be analysed and be compared each other along with the Korean policy. Furthermore, the carbon dioxide reduction and sequestration R＆D programs in the countries will also be studied.

• 한국세라믹학회지
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• 제35권12호
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• pp.1249-1256
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• 1998

${\beta}$-Silicon carbide(${\beta}$-SiC) whiskers could be synthesized by the carbothermal reduction of kaolin at tem-peratures between 1400 and 1500$^{\circ}C$. The whiskers were grown up to about 1150 of aspect ratio by VS mechanism (showing tapering tips) and to about 45 of that by VLS mechanism (showing round droplet tips) respectively. Hydrocarbon like methane in the reaction atmosphere promoted the formation of gaseous il-icon monoxide(SiO) from silicon dioxide(SiO2) and subsequently reacted with it to form whiskers. The for-mation of ${\beta}$-SiC whiskers increased with increasing carbon content(to 30 wt%) and reaction temperatures. The max. yield of ${\beta}$-SiC whiskers was 15% at 1500$^{\circ}C$ under 20%CH4/80%H2.

• 에너지공학
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• 제13권3호
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• pp.219-227
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• 2004

본 연구에서는 기후변화에 따른 온실가스 감축을 위해 추진되고 있는 이산화탄소 저감 및 처리기술개발의 성과제고를 위해 개발기술들을 대상으로 기술개발 동향 및 향후 발생될 여러 가지 영향요인(impact factor)을 발굴하여 분석하였다. 이를 위해 평점법(Scoring Models Method, SMM)과 분석적계층과정(Analytic Hierarchy Process, AHP)을 이용하여 $CO_2$저감 및 처리기술에 대한 분석을 수행하였으며 평가요인별 중요도의 계량적 제시와 함께 각각의 기술들에 대한 평가요인별 우선순위를 제시하였다.

• 한국가스학회지
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• 제2권1호
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• pp.66-73
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• 1998

본 연구에서는 부탄가스를 연료로 사용하고 있는 이동식 적외선 가스히터의 연소시 배출되는 배기가스의 농도수준과 특성을 분석하였다. 실험은 연소 챔버의 크기와 챔버의 온도를 고려하여 실험을 수행하였다. 산소결핍 안전장치가 작동하는 $O_2$의 농도는 챔버의 내용적에 관계없이 $18.3\%$로 각각 나타났고, 작동하는 시간은 내용적이 클수록 늦게 작동하였다. 밀폐공간에서 연소시 $O_2$와 $CO_2$는 선형성을 가지며, CO농도는 $O_2$나 $CO_2$의 발생수준과는 관계없이 연소가 시작된 10분 이후부터 그 발생폭이 불규칙적으로 크게 나타났다. 이들 결과는 가스 난방기를 실내에서 사용할 때 충분한 환기를 통하여 불안전 연소를 방지하고 $O_2$ 감소에 따른 질식사고와 CO에 의한 중독사고를 예방할 수 있다는 측면에서 대단히 중요하다.