입제의 수면처리에 의한 주요수도해충의 동시방제

최승윤,배상희,송유한,Choi Seung Yoon,Bae Sang Hee,Song Yoo Han 한국응용곤충학회 1970 한국식물보호학회지 Vol.9 No.1

본 시험은 유기인계 살충제인 Terracur P입제 및 Lebaycid 입제와 유기염소계 살충제인 상감마입제$(\gamma-BHC 입제)$를 수면시용 하였을때 수도요해충인 이화명충, 끝 동매미충, 애멸구 및 흰둥멸구에 대한 동시방제가능성과 방제적기를 구명하고 약제간의 방제효과를 비교코저 실시하였다. 얻어진 시험결과는 다음과 같다. 1) 약제처리후 부화직후 이화명충 접종 시험에 있어서 상감마와 Terracur P는 높은 살충율을 보였으나 Lebaycid의 살충율은 낮았다. 約 $50\%$ 살충력 잔효일수에 있어서 상감마는 8-14日이었고 Terracur P는 6일간이었다. 2) 당초 계획된 방제적기에 관한 정보는 얻을 수 없었다. 즉 주어진 일간격이 좁아 유의한 차를 얻을 수 없었다. 3) 1,2화기 이화명충에 대한 방제효과는 Terracur P=상감마>Lebaycid의 순이었다. 4) Terracur P와 Lebaycid 입제의 처리는 끝동매미충의 방제효과가 좋았으나 상감마$(\gamma-BHC 입제)$의 방제효과는 기대할 수 없었다. 끝동매미충에 대한 Terracur P와 Lebaycid입제의 잔효력은 30일 이상이었다. 5) 애멸구와 흰등별구에 대한 시험은 충의 서식밀도가 낮기 때문에 약제간 방제효과를 얻을 수 없었다. 6) 공시약제중 Terracur P와 Lebaycidd입제는 이화명충과 끌동매미충의 동시방제제로서 사용할 수 있을 것 같다. This experiment was conducted to find out the simultaneous control effect of granulated insecticides on the several major rice insect pests in Korea. The granulated insecticides used were Terracur P$5\%$ (one of the phosphoric insecticides), Lebaycid $5\%$, and Sang-gamma (gamma-BHC) $6\%$. Those insecticides were broadcasted by hand on the paddy field at the ratio of 3kg. in June and 4kg. in August per 10 a, and the date of insecticidal application was based on the maximum moth occurrence of the rice stem borer in 1969. The rice insect pests tested in this study were rice stem borer (Chilo suppressalis W.), green rice leafhopper (Nephotettix bipunctatus cincticeps U.), smiller brown planthopper (Laodelphax striatellus F.), and white back planthopper (Sogotella furcifera H.). For the study of residual effectiveness of the insecticides, the rice stem borer larvae just hatched from the eggs were installed on the sheath of rice plants collected from the paddy field after insecticidal treatment, and the mortality was made at 48 hours after installation. High mortality was observed in Terracur P and Sang-gamma treatments and low mortality in Lebaycid treatment. The duration of residual effects giving about 50% mortality was about 14 days in Sang-gamma and about 6 days in Terracur P treatments. The study on the effectiveness of the insecticides to the rice stem borer in the paddy field was made by the number of dead blades and white heads of the rice plants injured by the larvae, and the number of survival larvae in the straws after crop harvest. The order of insecticidal effectiveness to the rice stem borer was Terracur P=Sang-gamm>Lebaycid. The study on the effectiveness of the insecticides to the leafhoppers and planthoppers in the paddy field was made by the population density by sweeping (5 times) at the given day intervals after treatments. Terracur P was highly effective for the control of the green rice leafhoppers and Lebaycid was moderately effective, but Sang-gamma seemed not to be effective. The effectiveness of the insecticides tested to the planthoppers was not clear, and it seemed to related with the low insect population density. Study on the determination of proper timing of insecticidal application was not also made clear, and it seemed to be short in the range of day intervals in the insecticidal application. For the study on the control effects of the rice insect pests, rice yield per 100 hills per plot was observed. There was no statistically significant difference among the treatments in rice yields, but the order of yield (Terracur P>Sang-gamma>Lebaycid>Control) was paralleled with the tends of control effects above mentioned. In a view point of simultaneous control of the rice stem borers and green rice leafhoppers by the application of granulated insecticides, Terracur P and Lebaycid were more effective than Sang-gamma which have been used.

일본의 중심시가지 활성화에 관한 동향

윤상복,윤시운,오석기,이종식 동아대학교 건설기술연구소 1999 硏究報告 Vol.23 No.2

Currently, Suburbanization of commercial function in local and metropolitan city of Japan brought about doughnut phenomenon of city center, which made it seriously devastated. This study aims at the grasp of the depressed phenomenon caused by doughnut, providing a fundamental guide for activation of the central city in Korea through analysis of trends and strategy about it in Japan.

메탄올-물 혼합용매중에서 n-Alkyllamine염산염의 전도도-분몰랄부피와의 相關關係

尹庠基,嚴泰燮,朴鍾烈 東亞大學校 敎育大學院 1977 敎育大學院 論文集 Vol.4 No.-

여러가지 조성의 methanol-물 혼합계에 대하여 methyl amine에서 n-butylamine까지 4가지 동족체 amine 염산염의 전도도를 25℃와 30℃에서 용매조성에 따라 측정하고 Fuoss-Onsager의 반 이론식에 의거 극한당량전도도(??)와 기타의 conductance parameter를 구하였다. 실험결과 amine염의 종류와 온도에는 관계없이 methanol 조성이 증가함에 따라 ??는 감소하고 0.4m.f.에서 minimum을 보였다. 또한 0.1m.f.부근에서 ??값이 이상하게 큰 감소幅으로 나타났다. Onsager의 limiting slope ??는 0.4m.f.를 전후하여 최소값을 보였으나 ??값이 0.4.m.f.에서 minimum을 보인 현상과는 일치하지 않았다. parameter B??는 규칙성이 없는 작은 값이고 한편 Walden product는 0.1m.f.때 maximum값을 나타내었다. 이와같은 현상들은 같은 시료와 용매계에서 관측한 분몰랄부피(??)와 극히 유사한 현상으로 결국 용매의 미시적인 구조변화와 밀접한 관계가 있는 것이라 논의하였다 Conductance measurements are reported for n-alkylamine hydrochloride C??H????NH₃Cl where n varies from one to four in various methanol-water mixtures at 25℃ and 30℃ respectively. Data are analyzed by means of Fuoss-Onsager's semi-empirical equation to obtain the limiting equivalent conductances(??), and others such as limiting Onsager's slope(??). The results are discussed in terms of varing the composition of binary solvent that is mole fraction (m.f.) of methanol-water mixtures. It has been found that ?? decreases with the increasing of m.f. composion and show minimum at 0.4m.f. regardless of salt species and tempperature, particularly large decrement in ?? are showed at near water, 0.1 m.f. composition. Limiting Onsager's sope(??) show minimum in the range of 0.2 to 0.5 m.f., whereas parameter B?? were small and irregular alues over the whole range of solvent system. These conductance behaviors are considerably consistent with those of the results of partial molal volumes(??) observed for the same solvent system with same salts and suggested that both behaviors are closely related to the structual change of the binary mixtures.

PSM을 적용한 반도체 산업에서의 재해예방 사례연구

윤용구,홍성만,손제성,박범 대한설비관리학회 2003 대한설비관리학회지 Vol.8 No.2

It is a semiconductor product industry womed out enormous of loss that happened to accident for during in production exist to leakage, fire, explosion, using to variable chemical material of application, treatment, storage. This is presented to that improvement example for study, research, investigation of PSM in semiconductor industry and so processed to follow as theory consideration for PSM in semiconductor industry. This study did the object of research that S company is point to appointment and so give a account of S company PSM contents, searching to conclusion of PSM and consideration of problem and injury prevention for PSM expansion. From now on, PSM of semiconductor-injury is bring up improvement of problem, large-scale -company of semiconductor.

Perception and Attitudes Toward Affirmative Action: A Survey of College Students' Opinions about the Disabled and North Korean Defectors

Yoon,In-Jin and Kim,Sang-Hag 비판사회학회 2003 경제와 사회 Vol.- No.58

강풍시 고층건물의 감쇠율과 고유진동수의 진폭의존성

윤성원 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)

The wind tracker and structural monitoring system recorded wind and dynamic response data. The measured building is located in the mountain in Sokcho. The damping ration and natural frequency were analysed in this paper to obtain amplitude dependence. Amplitude dependent damping was showed clearly in the increasing rate of 9%. The tendency of dynamic properties of building obtained here are useful for the validation of dynamic properties of buildings in the evaluation of serviceability.

사고사례에 기초한 보일러 사고의 원인분석 및 대책

윤상권,장통일,임현교 한국안전학회 2003 한국안전학회지 Vol.18 No.3

An accident involving a boiler can result in a disaster since it handles high-pressurized steam so that it may cause an explosion. Therefore, the boiler is very susceptible to industrial accidents. This thesis aimed to develop counter-plans to prevent industrial accidents involved the boiler. At first, after collecting accident cases involving boilers, a survey on the trait of them was carried out. And, on the other hand, a qualitative analysis was conducted to draw out hazardous components in the boiler itself, and their inherent relative importance was assessed. Through this procedure, 'negligence of unsafe condition' was noted as the major cause for unsafe acts, whereas 'fault in work procedure' for unsafe condition. In the meanwhile, results of a hazard analysis using FMEA technique ranked gas safety devices, a switch preventing gas from under-pressurization, protect relays high. In particular, it was pointed out that the water feeding and steam subsystem has more components in hazard than other subsystems. Considering these analyses results, counter-plans to improve safety management was suggested also.

태권도 용품 광고가 대학생의 구매행동에 미치는 영향

윤상화 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.6

This study was intended to identify the effect of advertising for Taekowndo products on college students" purchase behavior. For this purpose, the questionnaire research was conducted for 400 undergraduates enrolled in the department of Taekwondo of 4-year colleges located in Seoul and Kyonggi Province. Of them, 350 college students completed the questionnaire and 324 questionnaires except 26 ones with dishonest responses and some omissions were used for final analysis. One-way ANOVA and co-variate analysis was conducted using Window SPSS/ PC+11.5 Version to investigate the difference in purchase behavior according to demographic characteristics and advertising for Taekwondo products. Based on the findings, the following conclusion was concluded: First, an attempt was made to investigate the difference in purchase behavior of Taekwondo products according to demographic characteristics. As a result, it was found that there was a statistically significant difference in purchase behavior according to academic year(P<.05). On the other hand, It was found that there was no statistically significant difference in the purchase behavior of Taekwondo products according to pocket money. Second, it was found that there was a statistically significant difference In purchase behavior according to the degree of reference to the content of advertising for Taekwondo products, in which academic year, one demographic factor, had a statistically significant effect on the purchase behavior of Taekwondo products(P<.05). It was found that the degree of reference to the content of advertising for Taekwondo products exercised an influence on college students' purchase of Taekwondo products by about 0.6%. Third, it was found that there was a statistically significant difference in purchase behavior of Taekwondo products according to advertisement media, in which the degree of reference to the content of advertising for Taekwondo products, and academic year, one demographic factor, had a statistically significant effect on the purchase behavior of Taekwondo products(P<.05). And it was found that the advertising media exercised an influence on college students' purchase of Taekwondo products by about 0.6%. Fourth, it was found that there was no statistically significant difference in the purchase behavior of Taekwondo products according to the factor on which importance was attached at the time of product purchase.

山火跡地 天然林과 人工林의 植物群集에 關한 硏究(Ⅰ) : 種組成 및 多樣性 Species Composition and Diversities

尹相旭,李允源 동국대학교 농림과학연구소 1993 農林科學 論文集 Vol.17 No.-

This study was to provide the fundamental data for vegetation recovery and efficient management of fire-burned forest area. For the purpose of this study, natural and artificial forests reproduced after fire burning were selected, including 7 sites of natural forests consisted of various fire-burned dates and 4 sites of artificial forests of 4 dominant tree species, Larix leptolepis, Pinus rigida, Chamaecyparis obtusa, Robinia pseudo acacia, and were investigated about species compositions and diversities. Obatained results are as follows : 1. By the community differential table the plant communities of this area are classified by Quercus acutissima - Lespedeza bicolor - Pteridium acquilinum community, Q. dentata - Pinus densiflora community, and Q. mongolica - Rododendron mucronulatum -Miscantus sinensis community centering around Quercus spp. in natural forests, and each Larix leptolepis, Pinus rigida, Chamaecyparis obtusa, Robinia pseudoacasia community consisting of species planted for the afforestation in artificial forests. 2. Natural forests are appeared to possess abundant species as the mean no. of species occured in the area are 49 species of natural forests and 39 species of artificial forests, and No. of species occured only in the natural forests and the artificial forests are 37 species and 31 species, respectively. 3. In natural forests Quercus acutissima, Quercus mongolica, and Rhododendron mucronulatum had the most high importance value in canopy layer, under layer, and shrub layer, respectively. Quercus mongolica and Rhododendron mucronulatum showed increased importance values with passing time after the fire. 4. In artificial forest, tree species that showed the most high importance value in each canopy - subtree - shrub layer were Chamaecyparis obtusa - Celtis sinensis - Deutzia parviflora in Chamaecyparis forest, Pinus rigida - Quercus acutissima - Quercus mongolica in Pinus rigica forest, Robinia pseudoacasia - Robinia pseudoacasia - Quercus serrata ini Robinia pseudoacasia forest, and Chmaecyparis obtusa - Callicarpa japonica without subtree layer in Chamaecyparis otusa forest. 5. Species diversity (H′) of natural forests was the most low value in Siljun area having the shortiest passing time after the fire, on the other hand Yumboksa area having the longgest one was the most high value and in artificial forests Larix leptolepis forest showed the most high value and Robinia pseudoacasia the most low one with the highest dominance. For species diversity of each crown layer, subtree layer in natural forests and shrub layer in artificial forest showed the most high value.

非水混合容媒속에서의 Anthraquinone-β-carbonyl chloride의 加溶媒分解反應

尹庠基,徐吉龍 釜山工業大學校 1983 論文集 Vol.24 No.2

The rate of solvolysis for anthraquinone-β-carbonyl chloride have been measured in EtOH-(Me)₂CO, EtOH-TFE at the various temperatures ranging from 15℃ to 30℃. The activation parameters and leffer' slope are determined by the analysis of solvolysis rates. Results show that the rates increase as EtOH-(Me)₂CO, EtOH-TFE. It was concluded that solvolytic reaction proceeds via ?? 2 mechanism at the transition and overall reaction was controlled to entropy.