http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 방주완 (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
金潤受,房周完,金潤植 全南大學校 農漁村開發硏究所 1986 農業科學技術硏究 Vol.21 No.-
The chemical composition of reaction wood of Pinus densiflora was investigated. Reaction wood was classified into compression, opposite and sidewood. For the chemical characteristics of reaction wool with those of normal wood, about 40-year old pine tree was also collected and investigated. Not only the ash content, pH value but also the extractives amounts of cold water, hot water and g% NaOH were not statistically significant different between reaction wood and normal wood. However, opposite wood showed the highest amount of organic solvent (ethanol-hexane) extractives, while the compression wood the lowest. The contents of lignin and holocellulose in the opposite wood, side wood and normal wood were almost same, whileas the compression mood showed more lignin and less bolo-cellulose than the above mentioned wood. The carbohydrate composition was different from the tissue positioned in the reaction wood; the compression wood showed lower amount of glucose, mannose and xylose, higher amount of galactan than those of opposite, side and normal wood, while these latter three woods contained exactly the same composition of the carbohydrates.
-
김윤수,채정기,방주완 한국목재공학회 1986 목재공학 Vol.14 No.6
Damage of powder-post beetle, Lyctus brunneus S. in the hardwoods was investigated, which are growing in southern part of Korean peninsular. Among the eightyeight species, 24 hardwoods were attacked by L. brunneus. Especially the woods of Celtis sinensis, Robinia pseudo accacia, Albizzia julibrissin, Gleditisia japonica M. var., Rhus sylvestris, Sapindus mukorossi and Meliosma myriantha were severely attacked(Tab. 1). Almost all the hardwoods susceptible against the attack of L. brunneus showed the positive color reaction with Lugol-reagent These hardwoods belonged to the ringporous or diffuse porous wood. Research work is necessary to determic the natural resistance of the most important timber species in Korea against this insect.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
