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- 저자 : 강문성(Kang Moon-Sung) (검색결과 141 건)
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강문성,강용수,Kang , Moon-Sung,Kang , Yong-Soo 한국분말야금학회 2005 한국분말재료학회지 (KPMI) Vol.12 No.1
Dye-sensitized solar cells(DSSCs) have been under investigation for the past decade due to their attractive features such as high energy conversion efficiency and low production costs. The basis for energy conversion in the injection of electrons from a photoexcited stateof a dye sensitizer into the conduction band of the nanocrystalline $TiO_2$ semiconductor upon absorption of light. It is believed that the DSSC is one of the most promising technologies to solve the significant energy problems. In this article, the development trends and perspective of DSSCs were reviewed.
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Imidacloprid와 그 유도체들의 살충활성에 미치는 3N-치환기(R)의 영향
강문성,장해성,김대황,성낙도,Kang, Moon-Sung,Jang, Hae-Sung,Kim, Dae-Whang,Sung, Nack-Do 한국응용생명화학회 1996 Applied Biological Chemistry Vol.39 No.2
Imidacloprid와 일련의 새로운 1-(6-chloro-3-pyridylmethy)-3-N-nitroimidazolidin-2-ylideneamine 유도체들을 합성하고 imidazolidine고리의 3-N-치환기(R) 변화에 따른 구조와 벼멸구(Nilaparvata lugens) 및 복숭아 혹 진딧물(Myzus persicae)에 대한 선택적인 살충활성 관계(SAR)를 검토한 바, 벼멸구에는 STERIMOL 파라미터인 B1상수$({\AA})$보다 소수성$({\pi})$, 그리고 복숭아 혹 진딧물에는 입체상수(Es)보다 극성 치환기상수$({\sigma}^{ast})$ 큰 변수로 작용하였다. 벼멸구의 경우에는 ${\pi}$상수의 적정값이 0.52이고 복숭아 혹 진딧물의 경우에는 $\sigma^{\ast}$상수의 적정값이 1.17로 이들 값에 가까운 값을 갖는 치환체일수록 큰 살충활성이 예상되었다. 두 경우, 모두 공통적으로 methyl 및 benzenesulfonyl-치환체(7 및 8)와 같은 센 전자끌게들은 살충활성에 기여하지 않았다. 그러나, 비치환(H)체(1)인 imidacloprid는 가장 큰 살충활성을 나타내었으며 H의 ${\pi}$상수와 ${\sigma}^{\ast}$상수가 이들 두 상수의 적정값에 미치지 못하지만, 양호한 살충활성을 나타낸 까닭은 2-N-nitro group의 산소원자와 3-imid group의 수소원자 사이에 형성된 분자내 회합(H-결합)에 기인함을 알았다. 그리고 pH 6.0 이하의 산성 수용액에서는 대단히 큰 잔류성을 나타내었으며 $45^{\circ}C$의 pH 7.0에서$(K_{obs};5{\times}10^8sec.^{-1})$ 반감기(t1/2)는 대략 6개월이었다. Imidacloprid and a series of the related compounds were synthesized, and influence of 3-N substituents(R) on the insecticidal activities against Brown plant hopper(Nilaparvata lugens) and Green peach aphid(Myzus persicae) were examined quantitatively from the structure-activities relationships(Shh) techniques. The results indicated that the molecular hydrophobicity$({\pi})$ and inductive substituent constant$({\sigma}^{\ast})$ of substituents(R) at 3-nitrogen position on the imidazolidine ring were important factors. Variations in the potency were parabolically related to the both constants. In case of Brown plant hopper, optimum value of ${\pi}$ constant was 0.52, whereas the value of ${\sigma}^{\ast}$ constant against Green peach aphid was 1.17, respectively. Among them, the strong electron withdrawing groups$({\sigma}^{\ast}>0)$ such as methyl and benzenesulfonyl group(7 & 8) showed lower insecticidal activity and non-substituted, 1(imidacloprid) showed the best insecticidal activity. It seems that the intramolecular associated(H-bond) form between 2-N-nitro group and 3-imid group may contribute to the higher insecticidal activity to the both sucking insects. And in aqueous solution, 1 showed higher residual activity below pH 6.0, and the half-life$(T_{1/2})$ was about 6 month at pH 7.0 $(ca.\;k_{obs.}:5{\times}10^{-8}sec.^{-1})$ and $45^{\circ}C$.
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소유역에서의 수계환경관리 및 평가시스템의 개발(I) - 시스템의 개발 및 구성 -
강문성,박승우,임상준,Kang, Moon-Seong,Park, Seung-Woo,Im, Sang-Jun 한국농촌계획학회 2001 농촌계획 Vol.7 No.1
In an effort to effectively manage and evaluate a water environment at a small watershed, a decision support system for a water environment management and evaluation has been developed. This paper described the overall features and functions of the water environment management and evaluation systems (WEMES) for environmental management, conservation, and evaluation at a small watershed. WEMES consisted of fore subsystems: data, simulation model, evaluation model, and user interface. Each of the systems were briefly described. And special features like simulation and evaluation models were also introduced.
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강문성,박승우,김상민,성충현,Kang, Moon-Seong,Park, Seung-Woo,Kim, Sang-Min,Seong, Chung-Hyun 한국농공학회 2004 한국농공학회논문집 Vol.46 No.1
The objective of the research is to develop agricultural resue technologies of reclaiming the effluents from a municipal wastewater treatment plant and reusing for irrigated rice paddies. The Suwon wastewater treatment plant was selected for wastewater reuse tests. The control was the plots with groundwater irrigation (TR#1), the treatment (TR#2) using polluted stream water as it was, and three others using wastewater after treatment. Three levels of wastewater treatments were employed: the effluent from the wastewater treatment plant (TR#3), sand filtering after treatment plant(TR#4), and ultra-violet treatment after sand filtering (TR#5). The randomized block method was applied to wastewater application to paddy rice with five treatments and six replica. The effects of various wastewater treatment levels on water quality, paddy soil, crop growth, yields, and the health hazards were investigated. The primary results indicate that cultivating rice with reclaimed wastewater irrigation did not cause a problem to adverse effects on crop growth and yields. Overall, wastewater could be used as a practical alternative measure for reclaimed wastewater irrigation. However, long-term monitoring is recommended on the effects on soil chemical characteristics and its related health concerns.
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한중 FTA 원산지 규정의 특징과 엄격성 지수에 대한 연구
강문성(Moon sung Kang) 한국무역연구원 2015 무역연구 Vol.11 No.3
This paper analyzed restrictiveness of rules of origin in the bilateral free trade agreement (FTA) between Korea and China, using a method developed by Estevadeordal (2000). It turned out that the restrictiveness index is 4.43, lower than the Korea-Chile FTA (4.82), Korea-ASEAN FTA (4.59), and Korea-EFTA FTA (4.53). This could be because both Korea and China have been strongly integrated with each other, without having an institutional framework such as an FTA, by establishing and actively participating in regional value chains in East Asia. In addition, using simple regression, this work has shown that there is a negative relationship between the trade balance of Korea and China and the restrictiveness of rules of origin. This implies that the restrictiveness index of a commodity is likely to be lower if Korea's trade balance in the commodity increases. Given the results of this research, one can provide policy recommendations for the Korean government, by asking it to establish training programs to educate staff responsible for documentation of rules of origin in exporting companies, in order to fully utilize potential benefits from the Korea-China FTA.
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강문성 ( Kang Moon Seong ),박승우 ( Park Seung Woo ),임상준 ( Im Sang Jun ),김학관 ( Kim Hak Kwan ) 한국농공학회 2003 한국농공학회지 : 전원과 자원 Vol.45 No.3
The objective of the paper is to compute the half-month rainfall-runoff erosivity factor for revised universal soil loss equation (RUSLE). RUSLE is being used to develop soil conservation programs and identify optimum management practices. Rainfall-runoff erosivity factor (R) is a key input parameter to RUSLE. Rainfall-runoff erosivity factor has been calculated for twenty six stations from the nationwide rainfall data from 1973 to 2002 in south Korea. The average annual Rainfall-runoff erosivity factor at the analyzed stations Is between 3,130 and 10,476 (MJ/ha)ㆍ(mm/h). According to the computation of the half-month Rainfall-runoff erosivity factor for locations, 66-85% of the average annual R value has occurred during the summer months, June-August. The half-month R values from this study can be used for RUSLE.
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