• Title/Summary/Keyword: Industry and Energy

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Study of Enhancing Dye Affinity of Fabric using Microwave

  • Kim, Ji-Hyun;Choi, In-Ryu
    • The International Journal of Costume Culture
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    • v.13 no.1
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    • pp.62-66
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    • 2010
  • Of all the ways that energy is consumed within textile industry, few are as high energy-expending as dyeing process. The energy consumption in dyeing process amounts to 77% of total fuel consumption, 54% of total electricity use. A technical development in terms of efficient saving energy and time as well is required in the process of dyeing textiles. Recently, dyeing experts are investigating new technologies can conserve energy grafting into microwaves, radio waves, infrared lights, etc. Dyeing industry in Korea, however, the research related to energy conservation has been rarely conducted. Accordingly, this study aims to examine the possibility where especially microwaves could be applied to reduce the energy use and enhance dyeing process skill. This study performs the experiment in which microwave is employed as heating condition in dyeing and figures out as color yield being promoted, bathochromic effect would be achieved. Applying microwaves in dyeing process is expected to lower the carbon emission, energy and time wasted, ultimately exalt economic efficiency.

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The Radiation Resistance Evaluation of Electrically Insulating Polymers

  • Lee, Dong-Hoon;Jung, Chan-Hee;Hwang, In-Tae;Choi, Jae-Hak;Im, Don-Sun;Kim, Ki-Yup;Nho, Young-Chang
    • Journal of Radiation Industry
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    • v.5 no.3
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    • pp.237-242
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    • 2011
  • In this research, the radiation resistance of ethylene propylene rubber (EPR) and chlorosulfonated polyethylene (CSPE) which can be used as a insulating materials of for electrical cable in the nuclear power plant were investigated. EPR and CSPE were irradiated by ${\gamma}$-ray at various doses ranging from 50 to 500 kGy at room temperature in air. The irradiated EPR and CSPE was investigated in terms of activation energy, mechanical properties, and oxidation stability. The experimental results revealed that CSPE exhibited the higher radiation resistance in comparison to that of EPR.

Induced Production Analysis for Photovoltaic Power Generation Equipment in Korea using Input-Output Table 2009 (산업연관표 2009를 이용한 태양광발전설비산업의 생산유발효과분석)

  • Kim, Yoon-Kyung
    • New & Renewable Energy
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    • v.8 no.1
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    • pp.8-17
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    • 2012
  • The Korean government pushed ahead various policies to disseminate photovoltaic (PV), wind power, small hydro, bio-fuel, etc. Renewable energy system (RES) budget of the Korean government increased from 118 billion won of 2003 to 876.6 billion won of 2010. The R&D budgetary supports for RES increased by 6.8 times in the period 2003-2010. It is necessary to confirm RES budget expenditure that renewable energy promotion policy makes good performance evaluated in quantity level. This paper made Input-Output Table 2009 contains photovoltaic power generation equipment industry as a dependent sector and analyzed induced production effect by demand of photovoltaic power generation equipment industry. From the empirical analysis result, additional demand in photovoltaic power generation equipment induced 1.932 times of induced production in Korea. Each of industry sector has positive induced production from the additional demand in photovoltaic power generation equipment. Renewable energy promotion in photovoltaic power generation is considered together with industry policy as the option to sustain economic growth.

New Energy Saving Technology of Electric Arc Furnace in Steel Making Industry (철강산업체 전기로(EAF) 설비에서 에너지절약 최신기술동향)

  • Oh, Dong-Whan;Park, Hyun-Kyu;Park, Tae-Joon;Im, Sang-Kug
    • Proceedings of the KIEE Conference
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    • 2003.07a
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    • pp.71-73
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    • 2003
  • The paper discussed for energy saving technology of electric arc furnace (EAF) in steel making industry. The energy of EAF in steel making process is nearly 10% of total manufacturing cost. This paper is shown new trand of energy saving technology and future study analysis of technological evolution of the EAF by 2010 issued IISI.

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High Energy Density for Drying of Coated Webs-Porous Burner Combustion a New Approach

  • Schneider, Heiko;Krieger, Reinhold
    • Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
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    • 2006.06b
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    • pp.205-208
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    • 2006
  • Existing gas fired burners work in the medium wave IR range at $1000^{\circ}C$ and an energy density of $200kW/m^{2}$. The patented porous burner technology reaches the short wave IR spectrum ($1450^{\circ}C$) and comes up to an energy density of $1000kW/m^{2}$. This technology is of great interest for various applications in paper industry. Speeding up existing coating lines can be realized without a major revamp of the line. Main characteristics of this new developed technology enable a better process control. In this paper the porous burner technology for paper industry is evaluated.

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Surface Graft Polymerization of Poly(ethylene glycol) Methacrylate onto Kenaf Pulp using Gamma-ray Irradiation (감마선을 이용한 케나프 펄프 표면의 Poly(ethylene glycol) Methacrylate 그라프트 중합반응)

  • Oh, Doori;Jeun, Joon Pyo;Kang, Phil Hyun
    • Journal of Radiation Industry
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    • v.6 no.3
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    • pp.251-255
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    • 2012
  • Pulp is typically used for paper industry to manufacturing various types of papers. However simply chemical modification makes enable the pulp to a wide range of application in various industrial fields. To bring the polymerization the gamma ray irradiated on the mixture of kenaf and PEGMA in various dose ranges from 20 to 60 kGy. As a results, the graft degree of 20.0% was obtained from 475 g of gamma ray irradiated pulp and PEGMA. After the polymerization, the chemical structure and morphology of the surfaces were examined by Fourier transform infrared spectroscopy, thermogravimetric analysis, and scanning electron microscope. Chemical structure of grafted pulp has significantly growth in carbonyl content with increasing the radiation dose. Also surface morphology was distinctly changed with decreased the degree of roughness and increasing the diameter. These results were explained gamma ray irradiation improve performance of graft polymerization efficiency.

The Impact of Creative Role Identity and Creative Self-Efficacy on Employee Creativity in the Hotel Business

  • KIM, Ji-Eun
    • The Journal of Asian Finance, Economics and Business
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    • v.6 no.2
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    • pp.123-133
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    • 2019
  • The study aims to investigate the nexus of between role identity, self-efficacy, feeling of energy, and employee creativity in the hotel industry of Korea. The employees' innovative behaviors like creativity have been many researchers' interest for decades in the hotel industry. The hypotheses depicting the relationship among the variables have been proposed based on a review of existing literature. The number of 215 cases was used for final analysis and the results were explained through structural equation modeling. The results indicate the hotel employees' role identity and creative self-efficacy positively influenced their feeling of energy. Further, both role identity and creative self-efficacy make significant impact on employee creativity. Feeling of energy also makes a positively significant impact on employee creativity. Feeling of energy partially mediates the relationship between the two independent variables and employee creativity. As a result, creative role identity, self-efficacy, and feeling of energy explain the variance of the hotel employees' creativity. The results present that hotel practitioners need to regard their employees' creative roles and build organizational culture to support creative activities so as to enhance employee creativity. Finally, theoretical and practical implications for the hotel industry and future studies have been discussed.

The Economic Effect of Industrial Investment on North Korea Energy and Natural Gas (북한 에너지산업과 천연가스분야 투자에 따른 경제적 파급효과)

  • Kim, Hyoung-Tae;Chae, Jung-Min;Cho, Young-Ah;Kim, Jin-Ho
    • Journal of the Korean Institute of Gas
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    • v.20 no.4
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    • pp.7-14
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    • 2016
  • The economic crisis in North Korea has reduced its capacity to invest in the energy industries. The country is going through a vicious cycle of decreased investment in the energy industries and reduced energy production. This suggests that the energy industries would come to the top priority of investment once the economy improves. This paper calculated the economic ripple effect of the investment on North and South Korean economies based on the assumption that 390 billion won was invested in the construction of a natural gas combined-cycle power plant in Gaesong Industrial Complex. In order to analyze the economic ripple effect of the investment on North Korean economy, we constructed the inter-industry relation table of North Korea for year 2014 and used the input-output model. The ripple effect of the investment in the natural gas industry turned out to be 1.012 billion dollars. In order to analyze the effect of the investment on South Korean economy, we constructed the inter-industry relation table of South Korea for year 2013 and used the demand-driven model for inter-industry analysis. As a result, production, added-value and employment inducement coefficients of the investment in the natural gas industry were calculated as 2.02073, 0.62697 and 8.99409 respectively.