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Tris(malonato)Cobltate(Ⅲ) anion이 산성용액에서 水化反應速度에 대한 溫度와 壓力의 影響
李相協,廉祥徹,林鍾完 慶北大學校 物理化學硏究所 1985 硏究論文集 Vol.6 No.-
The Kinetics of tris (malonato) Cobaltate(Ⅲ) anion in aquation reaction was carried by spectrophotometric method. Themperature range was 20˚ to 30℃ and pressure was varied up to 1500 bars. The rate constants were increased with increasing temperature, but were decreased with increasing pressure. Activation volume, energy, other activation parameters were reported.
改定 高校化學(Ⅰ) 敎育課程에 따른 必須實驗內容의 選定
李相協,呂煥鎭 경북대학교 과학교육연구소 1983 科學敎育硏究誌 Vol.7 No.-
Teaching objectives and contents of the reformed high school chemistry (Ⅰ) curriculum, which will be executed from 1984, were analyzed and studied. By means of the behavior domain, the suitable contents of experiment were selected to achieve the objectives of chemistry (Ⅰ) education in high schools. These contents of experiment which were suitable for our real situation were decided based on the result of application to the classes.
잡초 제거에 의한 Miscanthus × giganteus의 바이오매스 증가: 잡초와의 조기 자원 경쟁 우위의 중요성
이상협,한경덕,김윤하,이해속 강원대학교 농업생명과학연구원 2022 강원 농업생명환경연구 Vol.34 No.3
Silver grass (Miscanthus × giganteus) has traditionally been used as a feedstock and for ornamental and medicinal purposes. Recently, however, the biomass uses of silver grass have also been highlighted. This grass comprises 40% cellulose, 25% hemicellulose, and 21% lignin, the cellulose component of which can be converted into glucose, as a source of biofuel, whereas the lignin can be used as a resource for UV protectant film development. Given these utilities, silver grass is considered to have high value as a biomass plant. Consequently, it is desirable to develop efficient methods for the cultivation of this grass. Some studies have reported that weed control is necessary during the initial 2 years of silver grass cultivation; however, none of these studies have been conducted in a Korean cultivation environment. In this study, we accordingly evaluated the efficacy of four herbicides commonly used in Korea for weed control during silver grass cultivation. We found that herbicide treatments have beneficial effects on the growth of silver grass, notably with respect to branching. On the basis of our findings, we conclude that to maximize the final biomass yield, a high level of weed control is essential during the initial 2 years of silver grass cultivation.