• 제목/요약/키워드: Green emission

검색결과 1,029건 처리시간 0.03초

전기자동차의 보급정책과 전력계통에 대한 영향 (The Effect of Electric Vehicle on Power System and related Policies)

  • 이근준;한승호;이현철;윤용범
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2009년도 제40회 하계학술대회
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    • pp.44_46
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    • 2009
  • Becoming effective on Kyoto protocol, reduction of greenhouse gas is an urgent concern of our world. Transportation, depending on fossil fuel, is required to transfer higher effiency and green tech. oriented one. Electric Vehicle-EV-is take attention with its ability not only to reduce CO2 emission in transportation, but also to support load levelizing, spinning reserve, increase power quality on microgrid. This paper presents the recent policy for EV diffusion and the effects on power system demand and local system power quality.

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고온, 희박공기 연소에 관한 실험적 연구 (An Experimental Study on High Temperature and Low Oxygen Air Combustion)

  • 정대헌;양제복;노동순;김원배
    • 한국연소학회지
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    • 제3권1호
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    • pp.49-57
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    • 1998
  • High temperature preheated and diluted air combustion has been developed as the technology to realize higher thermal efficiency. In this type of combustion, there are many interesting phenomena which cannot be observed in room temperature air combustion. The characteristics of the combustion, investigated using a 3500 kcal/h LPG fired test facility, are described. The flame is demonstrated to have a blue and green in color and has a large volume. As the preheated air temperature increased up to $1000\;^{\circ}C$, the NOx emission incrased exponentially over a few hundred ppm with 11% $O_2$ correction. But, it drastically reducedabout 20ppm when the air was diluted from 21% $O_2$ to 5% $O_2$.

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Synthesis and Optical Characteristics of Green Emitting $(Y,Gd)Al_3(BO_3)_4$:Tb Phosphor for PDP application

  • Han, B.Y.;Shin, H.H.;Yoo, J.S.;Kim, C.K.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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    • pp.1352-1355
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    • 2007
  • An new green phosphor, $(Y,Gd)Al_3(BO_3)_4$:Tb was synthesized by flux assisted solid reaction and its VUV excitation and emission characteristics were examined. The luminance of $(Y,Gd)Al_3(BO_3)_4$:Tb at 147 nm excitation was higher than that of $YBO_3:Tb$, while keeping the spectra and decay time of Tb ion same as those of $YBO_3:Tb$.

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Study of White Light Emission with Three or Two color in Multi Organic Emitting Layers with DCJTB, DPVBi and Coumarin6

  • Yoo, Seok-Jun;Lee, Chan-Jae;Kim, Dong-Won;Han, Jeong-In
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권2호
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    • pp.1433-1436
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    • 2007
  • Using a blue emitting DPVBi material and red dopant DCJTB, WOLEDs with and without green emitter C6 added in ETL or HTL have been fabricated. The chromaticity color index of WOLEDs without C6 depends strongly on the doping concentration. In addition, manipulating thickness of emitting layer is similar effect such as controlling weight concentration of dopant. While the white color of WOLEDs with C6 added in ETL or HTL depend on position of C6. WOLED of three colors added green dye have been shown turn-on voltage of 3.25V, and EL efficiency 3.05cd/A @9V, $8102\;cd/m^2$, CIE coordinates (0.30, 0.32).

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New Green Phosphorescent Organic Light Emitting Devices with the (TCTA/$TCTA_{0.5}TPBI_{0.5}$/TPBI):$Ir(ppy)_3$ Emission Layer

  • Jang, Ji-Geun;Shin, Sang-Baie;Shin, Hyun-Kwan;Kim, Won-Ki
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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    • pp.465-468
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    • 2008
  • New green light emitting phosphorescent devices with host structure of TCTA[4,4',4"-tris(N-carbazolyl)-triphenylamine]/$TCTA_{0.5}TPBi_{0.5}$/TPBI[1,3,5-tris(N-phenylbenzimiazole-2-yl)benzene] were proposed and investigated according to the thickness combination of host layers and the doping level of $Ir(ppy)_3$[tris(2-phenylpyridine) iridium(III)].

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한국의 구조적 변화와 녹색성장 (Structural Change and Green Growth in Korea, 1980~2020)

  • 김용진
    • KDI Journal of Economic Policy
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    • 제34권4호
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    • pp.1-26
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    • 2012
  • 한국 및 여타 국가들의 온실가스 배출 관련 정책들은 기본적으로 배출 전망치를 바탕으로 수립되는바, 노동생산성이 높은 증가세를 보이는 부문에서 낮은 증가세를 보이는 부문으로 진행되는 구조적 변화-산업별 노동생산성 증가, 산업 전반의 배출 저감, 인구 증가를 고려한-의 예상경로가 핵심 요소가 된다. 따라서 구조적 변화의 원인을 모델화하는 작업은 배출량의 정확한 예측을 위해서 중요하다. 본 보고서는 한국경제 데이터를 활용하여 구조적 변화와 녹색성장 모델을 수립 및 평가함으로써 한국과 국제사회의 온실가스 담론을 위한 정책 함의성을 도출한다.

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Recent improvements in display image qualities of CNT FEDs

  • Chi, Eung-Joon;Chang, Cheol-Hyeon;Lee, Chun-Gyoo;Choe, Deok-Hyeon
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2006년도 6th International Meeting on Information Display
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    • pp.137-140
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    • 2006
  • The prototype of the field emission display with carbon nanotube emitter is developed in this study. To improve the brightness and color gamut of the prototype, new phosphor material, $SrGa_2S_4:Eu$, is adopted instead of conventional CRT-green phosphor. By replacing the green phosphor, the prototype shows significant improvements in the brightness and color gamut. At the anode voltage of 7 kV and the anode current of $2{\sim}3\;{\mu}A/cm^2$ the brightness is higher than $600\;cd/m^2$. The luminous efficiency of the prototype is about 7.7 lm/Watt.

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지역특성을 고려한 환경보전계획수립을 위한 시민환경의식 분석 (Analysis for Environmental Consciousness on Conservation Planning Considering the Regional Characteristic -The Case of Daegu City-)

  • 류지원;정응호
    • 한국환경과학회지
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    • 제23권12호
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    • pp.2071-2082
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    • 2014
  • In this study, the environmental consciousness of Daegu citizen on conservation planning considering the regional characteristics was investigated. Data were collected throughout a survey and 1400 people were selected using a stratified sampling method based on populations of Daegu administration district. Results wee followings; First, the levels of environmental consciousness were different dependent on districts' characteristics. Second, poor awareness on Daegu Agenda 21 (Clear and Green Daegu 21) were shown. Daegu Agenda 21 is the action plan for the sustainable environmental conservation activities of the City of Daegu. Third, waste was the most serious environmental problems of Daegu, air quality was second worst, and third was river water quality from the survey, but differentiated awareness was shown dependent on regional spatial factors and pollution emission factors. Last, a public environmental education was the most important issue to make invigorations and progress for future environmental policy.

Characterization of Azomonas agilis PY101, a Cadmium-Resistant Strain Isolated from Anyang Stream

  • You, Kyung-Man;Lee, Ji-Hyun;Kim, Jeong-Kook;Hah, Nam-Ju;Lee, Yung-Nok;Park, Yong-Keun
    • Journal of Microbiology
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    • 제34권3호
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    • pp.289-293
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    • 1996
  • A cadimium-resistant strain isolated from Anyang stream, Azomonas agilis PY101 exhibited strong resistance to 1000 ppm of cadmium ion $(Cd^{2+})$. A agilis PY101 also exhibited resistance to various antibiotics, such as amoxicillin, amplicillin, bacitracin, cefazolin, erythromycin, penicillin, tetracycline, and vancomycin. In the presence of $Cd^{2+}$, the growth of A. agilis PY101 started after an extended lag phase and produced a green-fluorescent pigment induced by cadmium. The dramatic decrease (approximately 400ppm) of concentration of $cd^{2+}$ in the culture medium during the growth phase of A. agilis PY101 was confirmed by the inductively coupled plasma-atomic emission spectrophotometer. Transmission electron microscopic analysis revealed that A. agilis PY 101 actively accumulated $Cd^{2+}$ in the cytoplasm.

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High Luminance $Zn_2SiO_4:Mn$ Phosphors Prepared by Homogeneous Precipitation Method

  • Sohn, Kee-Sun;Choi, Yoon-Young;Jung, Ha-Kyun;Park, Hee-Dong
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2000년도 제1회 학술대회 논문집
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    • pp.31-32
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    • 2000
  • $Zn_2SiO_4:Mn$ phosphors have been recently spotlighted as a green component for plasma TV application. Commercial phosphors such as P1 and P39 have been known to be a very efficient green light emitter for lamp and CRT application. Unfortunately, such commercial phosphors are not suitable for the plasma TV application as both the emission intensity and the decay time do not meet the requirement for plasma TV. The present investigation aims at improving the existing $Zn_2SiO_4:Mn$ phosphors for the purpose of adapting them to PDP application.

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