http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
홍순영,함영일,강영길 한국식물병리학회 2003 식물병연구 Vol.9 No.3
This study was conducted to clarify developmental characteristics of scab in potato fields in Jeju island, Korea from 1995 to 1999. Occurrence of potato scab increased with repeated cultivation of potato and high soil pH in the fields. Incidence of the disease was as high as 54.8% in the repeatedly cultivated potato fields but relatively low as 20.8~26.3% in the non-cultivated fields and in the fields where barley and Chinese cabbage were formerly cultivated. A total of 66 isolates were obtained from the diseased potato tubers and identified as Streptomyces scabies, S. turgidiscabies and S. acidiscabies. The isolation frequency of each Streptomyces species was 37.7%, 14.8% and 18.0%, respectively. The optimum temperature for mycelial growth of the Streptomyces spp. was 28~30oC, and the optimum pH for that 6~7.
On the Correlation of the Carbonyl Stretching Frequency with Substituents in Benzanilides
홍순영,박용태,최원형,Soon Yung Hong,Yong Tae Park,Won Hyung Choi Korean Chemical Society 1973 대한화학회지 Vol.17 No.3
Hammett형의 식${\nu}={\nu}_0 +{\rho}{\sigma}$을 적용하여 벤즈아닐리드에 있어서의 카르보닐 신축진동과 치환기의 상관관계를 조사하였다. 치환기가 C-페닐기에 있을때는 ${\sigma}$보다 ${\sigma}^{+}$ 와 더 좋은 상관관계를 나타내었고 한편 치환기가 N-페닐기에 있을때는 ${\sigma}$와 더 좋은 상관관계를 나타내었다. 치환기가 C- 및 N- 양페닐기에 동시에 있을때는 이들 치환기는 카르보닐 신축진동에 서로 독립적으로 적용하였다. 이와같은 결과를 벤즈아닐리드의 구조를 이용하여 고찰하였다. The correlation of the infrared carbonyl stretching frequency with substituents in benzanilides has been studied. The Hammett-type equation(1) was adopted for this correlation. Substituents in a C-phenyl-ring gave a better correlation with ${\sigma}^{+}$rather than ${\sigma}$, meanwhile, substituents in a N-phenyl-ring gave a better correlation with ${\sigma}$. When substituents are placed on both C-phenyl and N-phenyl ring, they influenced the carbonyl stretching frequency reasonably independently of each other. A conformation of benzanilide which accounts for the above observation has also been discussed.
3.4.5.6-Tetrachlorobenzene-2-Diazo-1-Oxide의 1,3-환상부가에 대한 반응 속도론적 및 반응 메카니즘에 관한 연구
홍순영,Hong, Soon-Yung 대한화학회 1970 대한화학회지 Vol.14 No.3
The effect of dimethyl maleate on the rate of thermolysis of 3,4,5,6-Tetrachlorobenzene-2-Diazo-1-Oxide in 1-chloronaphthalene at $130.2^{\circ}$ was investigated: In a separate experiment, the effect of dimethyl fumarate upon the same reaction at the same temperature was investigated. The rate of thermolysis was decreased by dimethyl maleate, while dimethyl fumarate accelerated the reaction. Some kinetic parameters of the thermolysis of 3,4,5,6-Tetrachlorobenzene-2-Diazo-1-Oxide were calculated. A mechanism of isomerization of dimethyl maleate to dimethyl fumarate by 3,4,5,6-Tetrachlorobenzene-2-Diazo-1-Oxide was proposed.
Kinetics and Mechanism of the Reaction of Benzyl Bromide with Thiobenzamides
홍순영,여수동,Hong Soon-Yung,Yoh Soo-Dong Korean Chemical Society 1972 대한화학회지 Vol.16 No.5
벤질브로마이드와 여러가지 m-또는 p-핵치환 지오벤즈아미드류와의 반응속도를 전기전도도법으로 측정하였다. 이들 반응에서 전자흡인치환기는 반응속도를 촉진하였고 한편 전자공여치환기는 반응속도를 억제하였다. 이 사실에 부합하는 반응 메카니즘을 고찰하였다. 추가하여 이들 반응에 있어서의 활성화에너지와 활성화엔트로피를 산출하였다. Rates of the reactions of m-and p-ring-substituted thiobenzamides with benzyl bromide in acetone have been determined by an electric conductivity method. The Hammett rule has been adopted for these reactions. It has been observed that an electron-attracting substituent accelerates the reaction while an electron-donating substituent retards the reaction, and a mechanism which accounts for the observed kinetics has been postulated. The activation energies and entropies of activation for these reactions have also been calculated.