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손승욱(Seung Wook Son),이재승(Jae-Seung Lee) 동아시아국제정치학회 2017 국제정치연구 Vol.20 No.1
This paper examines why the LNG supply-demand strategies of Korea and Japan, two biggest LNG buyers of the world, have changed and analyzes the key factors that have driven those changes. Korea and Japan share the common interests in the global LNG market and receive undistinguishable effects when existing energy situation is transformed, Even though they have been placed in similar conditions, the changes of global LNG market–oversupply and demand reduction–brought diverse responses from the two countries. Korea maintained the existing strategies due to institutional, market structural and price factors, while Japan shifted its stance toward the market-oriented competition emphasizing the subject of liquidity. This study suggests that a comparison between the differentiated LNG supply-demand strategies of Korea and Japan would enhance the feasibility of policy cooperation of two countries to improve the Northeast Asian LNG cooperation.
가시광선 반응형 광촉매의 질소산화물(Nox) 제거 성능 평가
손승욱(Son Seung-wook),전기용(Jeon Ki-Yong),김화중(Kim Wha-Jung) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(구조계)
Recently, indoor air pollution is issued due to closed building for saving energy emerged. In this study, to solve the problem, photocatlysts were investigated. Photocatlysts are harmless to human body and remove air pollutant. In order to activate photocatalysts in visible ray, experiments was conducted to dop transition metal elements on photocatlysts. Transition metal elements were added to Ti0₂ by 3%, 6%, 9% and heated by 600℃, 800℃ and 1000℃ to make the samples.
김화중,전기용,손승욱,이창준,김경민,Kim, Wha-Jung,Jeon, Ki-Yong,Son, Seung-Wook,Lee, Chang-Joon,Kim, Kyung-Min 대한건축학회 2012 대한건축학회논문집 Vol.28 No.3
The air pollution inside a building has become a big problem for a modern society that people spend most of their days inside. In this paper, We tried to resolve the problem by developing a photocatalysts highly active inside. A photocatalyst is in fact not suitable for indoor use because it only reacts under strong ultraviolet rays in general. Furthermore, the price of such photocatalysts is still highly expensive to adopt in massive quantity for an indoor finishing material even though it has been priced down from number of studies operated until present. In order to solve problems, the attempts to bring out the certain level of reactions even under weak level of ultraviolet rays by adding Ni and Zn, the transition elements were made in this examination. Moreover, KA100 that is fairly economical among commercialized products is used as a precursor to lower the price and improved the characteristics of photocatalysts through a simple process of heating. Therefore, the experiments were varied with different rates of adding Ni and Zn to KA100 and temperatures for the combination of a photocatalysts and transition elements.
김화중(Kim, Wha-Jung),전기용(Jeon, Ki-Yong),손승욱(Son, Seung-Wook),이창준(Lee, Chang-Joon),김경민(Kim, Kyung-Min) 대한건축학회 2012 大韓建築學會論文集 : 構造系 Vol.28 No.3
The air pollution inside a building has become a big problem for a modern society that people spend most of their days inside. In this paper, We tried to resolve the problem by developing a photocatalysts highly active inside. A photocatalyst is in fact not suitable for indoor use because it only reacts under strong ultraviolet rays in general. Furthermore, the price of such photocatalysts is still highly expensive to adopt in massive quantity for an indoor finishing material even though it has been priced down from number of studies operated until present. In order to solve problems, the attempts to bring out the certain level of reactions even under weak level of ultraviolet rays by adding Ni and Zn, the transition elements were made in this examination. Moreover, KA100 that is fairly economical among commercialized products is used as a precursor to lower the price and improved the characteristics of photocatalysts through a simple process of heating. Therefore, the experiments were varied with different rates of adding Ni and Zn to KA100 and temperatures for the combination of a photocatalysts and transition elements.
제주도에서 분리한 미생물의 수질정화 성능 평가에 관한 연구
김우석 ( Woo Suk Kim ),박준석 ( Jun Seok Park ),서대석 ( Dae Seuk Seo ),김봉균 ( Bong Kyun Kim ),손승욱 ( Seung Wook Son ),박재로 ( Jae Roh Park ) 한국수처리학회 2016 한국수처리학회지 Vol.24 No.4
In this study, we collected samples from rivers in Jeju Island and other places where the self-purification capacity of rivers had been recovered by utilizing effective microorganisms(EM). And then after separating microorganisms from among the samples, we evaluated each microorganism’s water purification. In addition, we performed DNA sequencing by means of the 16S rRNA gene (16S rDNA) sequencing method for the identification of microorganisms capable of improving water quality and sought to register gene sequence information in GenBank at the National Center for Biotechnology Information (NCBI). According to the COD experiment results, C1, B4 and C6 showed the average removal efficiency of 21.3, 23.4 and 38.6% respectively. According to the T-N experiment results, the respective strains of B4, B6, M3 and C1 showed the average removal efficiency of 26.8, 34.9, 28.3 and 23.3% respectively. According to the T-P experiment results, the respective strains of B4, B6, C1 and C4 showed the average removal efficiency of 15.0, 19.4, 15.1 and 9.1% respectively. By examining the present study, it is judged that the strain of B6 has the best water purification performance. As a result of its identification, the strain of B6 showed 99.66% similarity to the strain of Bacillus subtilis. Moreover, the gene sequence information was registered in GenBank at NCBI in the USA, thereby being assigned the accession number of ‘KU672511’.