전력산업 구조개편 추진방향

박주수 대한기계학회 2001 대한기계학회 춘추학술대회 Vol.2001 No.11

벼와 벼과 잡초에 따른 끝동매미충 유충의 발육 및 성충의 수명과 산란의 차이

최주수,박영도 한국생명과학회 2001 생명과학회지 Vol.11 No.2

Some attempts were made to investigate the biological characterisitcs of the green rice leafhopper(GLH) , Nepthotettix cincticeps Uhler in terms of nymphal development, emergence ratio. preovipositional period, growth index, adult longevity and fecundity fed on rice cultivar, Chucheongbyeo with no resistance gene and water foxtail, Alpecurus aequalis Sobol. var. amurensis Ohwi at 20 and $25^{\circ}C$ with a 16L;8D photoperiod. Development period of nymph on rice cultivar and water foxtail at $25^{\circ}C$ was shorter than that at 2$0^{\circ}C$ by twofold. The nymphal period of female was about one day longer than that of male. The mean emergence ratio of female and male on rice cultivar and water foxtail was 40.0, 76.7, 38.3, 73.3% at 20 and $25^{\circ}C$, respectively. Preovipositional period on rice cultivar and water foxtail at $25^{\circ}C$ was shorter that at 2$0^{\circ}C$ by twofold. Growth index on rice cultivar adn water foxtail at $25^{\circ}C$was higher than that at 2$0^{\circ}C$ by fourfold. Under the 20 and $25^{\circ}C$ condition, the longevity of female and male was longer on water foxtail than on rice cultivar, but the fecundity of GLH was higher on rice cultivar than on water foxtail. In conculsion, water foxtail seems to be adequate for spring host of GLH.

리튬용융염에서 초합금의 고온부식거동

주수행,임종호,박성빈,정기정,박성원 대한금속·재료학회 2005 대한금속·재료학회지 Vol.43 No.6

벼멸구 생태형의 성장특성별 감로배설량의 차이

최주수,박영도 한국생명과학회 1998 한국생명과학회 학술발표회 Vol.20 No.-

벼멸구 생태형의 성장 특성별 감로 배설량의 차이

최주수,박영도 동의대학교 기초과학연구소 2000 基礎科學硏究論文集 Vol.10 No.1

Some attempts were made to investigate the honeydew excretion of the brown planthopper(BPH), Nilaparvata lugens Stal, biotypes in terms of instar nymph, days after emergence, macropterous and brachypterous mated and unmated female, and macropterous female with different sources fed on 60-day-old rice cultivars with different resistance genes. The feeding amount of the BPH biotypes was measured by using the honeydew excretion test. The feeding amount of fifth instar on Miryang 23 with no resistance gene was higher than that of Cheongcheongbyeo with Bph-1 gene by two times. Macropterous females and brachypterous showed low feeding amount at first day after emergence, but they showed high feeding amount from second days after emergence. Also the feeding amount of brachypterous female was higher than that of macropterous female. In addition, the feeding amount of BPH was in the order of nymph$lt;macropterous male$lt;brachypterous male$lt;macropterous unmated female$lt;macropterous mated female$lt;brachypterous unmated female$lt;brachypterous mated female. The feeding amount of the BPH biotype-1, 2, and 3 on Miryang 23 was in the order of laboratory(the insects reared for at least 10 generation in the laboratory)$lt;field(the insects obtained from rice fields, 2 generation after migration)$lt;migration(the insects caught directly from migrating population). The feeding of biotype-2 on Cheongcheongbyeo and biotype-3 on Miryang 63 with bph-2 gene was as high as that of biotype-1,2, and 3 on Miryang 23.

2-Halobenzyl Phenyl Ether의 광반응성과 광반응 메커니즘

박용태,서주수,김영희 진주산업대학교 1997 論文集 Vol.36 No.-

The photochemical reaction behavior of 2-halobenzyl phenyl ethers were studied, in order to investigate photoreactivity and photoreaction mechanism of those compounds. The photochemical reactions of 2-halobenzyl phenyl ethers were studied in several conditions. Photo-Fries type products and phenol were obtained as main products, and small amounts of photocyclized and photoreduced products were obtained. In the presence of oxygen, the formation of phenol was not affected much, the formation of photo-Fries type products was changed a little, but the formations of photocyclized and photoreduced products were affected effectively. Photocylization and photoreduction were inhibited by piperylene. Therefore singlet state is involved in the formation of phenol, and triplet state may be involved in photocyclization and photoreduction. All products were affected by nitrous oxide except phenol, this result implies that radical or radical-anion is involved in those photoreaction.

Delaware 포도에서 Gibberellin 처리와 봉지씌우기가 과립의 성숙과 품질에 미치는 영향

최주수,박영도 한국생명과학회 1997 생명과학회지 Vol.7 No.4

This experiment was carried out to clarify the effects of gibberellin(GA) aplication and bagging on repeening and quality in 'Delaware' grape berries. Treatments are 4 plots(2X2 factorial experiment); GA, GA+bagging, bagging and control. The clusters were dipped twice in 100 ppm GA with GA treatment : 10 days before and after the full bloom. The results obtained as follows: 1. GA treatment made the seedless grape berry reduced in the fresh weight but it hastened the ripening period about 2 weeks. 2. Total soluble solid(TSS), viscosity and pH value of berry juice increased with maturation. The concentration of TSS and viscosity were higher in GA treatment plot than GA non-treatment. 3. Berry-hardness, titratable acidity and alcohol inslouble solid(AIS) decreased with maturation. Expically berry-hardness and AIS decreased more greatly in GA non-treatment than GA treatment. 4. The concentration of anthocyanin increased with ripening but pectic substance didn't fluctuate nearly. These of anthocyanin and pectin were higher in GA non-treatment plot than GA treatment. 5. By analysis of factorial experiment GA treatment was highly significant with the $^{o}$Brix/Acidity ratio, juice viscosity and AIS, but high negatively, significant with berry-hardness and berry fresh weight. And it was significant with T S S and negatively, titratable acidity. Bagging was significant with $^{o}$Brix/Acidity ratio and AIS content, but negatively, titratable acidity. 6. Qualitative characters were high correlated with the $^{o}$Brix/Acidity ratio in simple correlation but direct effect by the path-coefficient analysis didn't coincide with simple correlation. The direct effect of pH was large and juice viscosity, the next. And that of berry-hardness was negligible but, AIS, small negatively.

2-Halobenzyl Phenyl Ether의 제조와 그 광화학

박용태,서주수,김영희,신현일 진주산업대학교 1996 論文集 Vol.35 No.-

The photochemical reaction of 2-halobenzyl phenyl ethers was studied. In order to study the photoreactivity of haloarene tethered to arene with alkyl ether group, two 2-halobenzyl phenyl ethers were prepared. when the acetonitrile solution of 2-halobenzyl ethers in pyrex immersion vessel was irrdiated by 100W medium pressure Hg-lamp, the Photo-Fires type products, o(2-halo)benzyl phenol and p-(2-halo)benzyl phenol were obtained. Photo-Fires type reaction of 2-halobenzyl phenyl ether ws supposedly due to rearrangement of 2-halobenzyl radical and phenol radical produced by C_sp3-O bond cleavage. However when the reaction was carried out in benzene/aqueous alkalic solution with vycor immersion vessel, photocyclized product along the Photo-Fries type reaction products and photoreduced product was observed.

파밤나방 유충의 발율 및 성충의 수명과 산란에 미치는 온도의 영향

최주수,박영도 한국생명과학회 2000 생명과학회지 Vol.10 No.1

Larval development, adult longevity and oviposition of the beet armyworm, Spodoptera exigua H bner was studied at 16, 20, 25 and 3$0^{\circ}C$ with a 16L: 8D photoperiod. Egg hatchability of S. exigua was the highest at 3$0^{\circ}C$ and reduced with decreasing temperature. Egg period was the shortest at 3$0^{\circ}C$ and prolonged with decreasing temperature. Percent pupation was became higher at higher temperature form 23.2% to 94.0%. Developmental period of larva was the shortest at 3$0^{\circ}C$, but extended with decreasing temperature. Adult emergence ratio was the highest at 3$0^{\circ}C$ and reduced with decreasing temperature. The mean pupal period was 35.2, 14.4, 7.8 and 5.0 days at 16, 20, 25 and 3$0^{\circ}C$, respectively. Relationships between constant temperature and the developmental velocity of egg, larva and pupa were linear. Developmental threshold temperature seems to be 13.3 8$^{\circ}C$ for egg, 14.02$^{\circ}C$ for larva, 14.09$^{\circ}C$ for pupa, and 13.84$^{\circ}C$ for egg the adult. Estimated value of the total effective temperature for completing each stage was 36.89 day-degree for egg, 155.72 day-degree for larva, 79.20 day-degree for pupa, and 273.41 day-degree for egg to adult. Female longevity varied to temperature from 11.4 days at 16$^{\circ}C$ to 5.8 days at 3$0^{\circ}C$, and male longevity was longer than that of female. Preoviposition period was the shortest at 3$0^{\circ}C$, but prolonged with decreasing temperature. It was about 2.7 times longer at 16$^{\circ}C$ than that at 3$0^{\circ}C$. Number of eggs per female was the highest at $25^{\circ}C$, followed by 20, 30 and 16$^{\circ}C$.

벼멸구 생태형의 성장 특성별 감로 배설량의 차이

최주수,박영도 한국생명과학회 1999 생명과학회지 Vol.9 No.2

벼멸구(Nilaparvata lugens Stal)의 영기별, 시형별, 성별 및 교미유무별 우화경과일에 따른 감로배설량과 벼멸구의 실내사육충, 비래충 및 포장에서 2세대 경과된 충에 따른 생태형의 감로배설량을 조사한 결과 다음과 같다. 감수성품종 밀양 23호는 영기가 진행됨에 따라 감로배설량이 증가하여 5령기에는 1령기에 비해 6배이상 많았으며, 또 저항성품종 청청벼보다 2배이상 감로배설량이 많았다. 우화 후 경과일에 따른 감로배설량은 장.단시형 모두 우화 1일째는 적었으나, 우화 2일째부터 다소의 변이는 있었으나 증가하였다. 밀양 23호의 경우 교미한 장시형 암컷 성충의 감로배설량은 54.4$\textrm{mm}^2$로 교미하지 않은 장시형 암컷 성충의 43.6$\textrm{mm}^2$보다 높았고, 또한 교미한 단시형과 교미하지 않은 단시형 암컷성충은 각각 63.2$\textrm{mm}^2$, 55.2$\textrm{mm}^2$로 나타나 장시형에 비해 감로배설량이 많았다. 한편 암컷성충의 경우 장.단시형 모두 청청벼 보다 밀양 23호에서 약 3~4 배정도 높게 나타났다. 실내충, 비래충 및 포장충의 감로배설량은 생태형-1의 경우 밀양 23호에서 각각 76.0$\textrm{mm}^2$, 162.3$\textrm{mm}^2$, 118.3$\textrm{mm}^2$로 나타났으며, 생태형-2와 3도 실내충<포장충<비래충순으로 나타났다. 또한 생태형-2에 감수성인 청청벼에서의 실내충, 비래충, 포장충은 각각 42.1$\textrm{mm}^2$, 132.5$\textrm{mm}^2$, 113.5$\textrm{mm}^2$, 생태형-3에 감수성인 밀양 63호에서는 45.3$\textrm{mm}^2$, 251.4$\textrm{mm}^2$, 97.7$\textrm{mm}^2$로 밀양 23호에서와 같이 많은 감로배설량을 보였다. 그러나 각 생태형별 저항성품종에서는 실내충, 비래충, 포장충간에 감로배설량의 차이를 인정할 수 없었다. 따라서 벼품종에 대한 충체특성별 및 환경조건별로 가해능력의 차이가 있는 것으로 보아 앞으로 이러한 결과를 활용하면 벼멸구에 대한 저항성기작 연구와 벼멸구 생태 형들의 발생과 피해정도를 예측하여 벼멸구 방제에 중요한 자료로 활용될 수 있을 것으로 생각한다. Some attempts were made to investigate the honeydew excretion of the brown planthopper(BPH), Nilaparvata lugens Stal, biotypes in terms of instal nymph, days after emergence, macropterous and brachypterous mated and unmated female, and macropterous female with different sources fed on 60-day-old rice cultivars with different resistance genes. The feeding amount of the BPH biotypes was measured by using the honeydew excretion test. The feeding amount of fifth instar on Miryang 23 with no resistance gene was higher than that of Cheon-gcheongbyeo with Bph-1 gene by two times. Macropterous and brachypterous females showed low feeding amount at first day after emergence, but they showed high feeding amount from second days after emergence. Also the feeding amount of brachypterous female was higher than that of macropterous female. In addition, the feeding amount of BPH was in the order of nymph<macropterous male<brachypterous male<macropterous unmated female<macropterous mated female<brachypterous unmated female<brachypterous mated female. The feeding amount of the BPH biotype-1, 2, and 3 on Miryang 23 was in the order of laboratory(the insects reared for at least 10 generation in the laboratory)<field(the insects obtained from rice fields, 2 generation after migration)<migration(the insects caught directly from migrating population). The feeding of biotype-2 on Cheongcheongbyeo and biotype-3 on Miryang 63 with bph-2 gene was as high as that of biotype-1, 2, and 3 on Miryang 23.