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      • 菊花 흰녹병균의 發生 樣狀, 小生子의 適正 形成溫度, pH 및 品種別 抵抗性

        具漢謨 公州大學校 資源科學硏究所 1996 資源科學硏究論文集 Vol.4 No.-

        Deree of incidences to white rust on chrysanthemum, effect of temperature, pH for sporidum formation by puccinia horinia and resistance of cultivars to typical disease were investigsted in the field and laboratory. 1.Degree of Incidences of white rust by puccinia horinia on chrysanthemum were progressed hightly virulence at May. 2.Sporidium formulation were developed at 5∼25℃ and pH 4.0∼8.5 after incubation. Optimum temperature and pH of formulation for sporidium were 20℃ and pH 7.0. 3.When 25 major cultivars were evaluated for their levels of resistance to damping off in the field, 7 cultivars including Weldon were showing high level of resistance and the low level of resistance were Spring Song, Arieta and Dax. The resistance cultivars to black spot were showing 7 including Westland Pink. Showing cultivars of the low level for resistance were Rose Queen and Spring Song. Resistance to brown spot were 8 cultivars including Westland Pink, and the low level for resistance were in other of Harliquine, Park Marble. Showing the resistance level for of micronutrient deficient were 13 cultivars including Westland Pink and Arieta were susceptive of the high level. Cold Resistance of flower were Harliquine and 6 the others. Cultivars, the high level of susceptible were in other of Spring Song, Rose Queen and Salmon.

      • 친환경 과수재배를 위한 과수농가의 농약사용실태에 관한 조사 연구

        구한모,강희경 공주대학교 자원과학연구소 2000 資源科學硏究論文集 Vol.8 No.-

        This survey was conducted to investigated the actual conditions and problems of pesticide use in fruit farmhouse for sustainable fruit culture. A personal interview on 187 fruit culture farmers were conducted in Chungnam Yesan area as the central region by random sampling from May, 2000 to October, 2000. In purchasing pesticide, 47.9% of the respondents purchase it in pesticide shop and 44.2% of them in agricultural co-operative or apple co-operative. In selection of pesticide, 34.9% of them selected it through the agricultural co-operative or apple co-operative. n the methods to know it, over 29% of them knew it through the pesticide shop, agricultural co-operative or apple co-operative, respectively. In dilution ratio of pesticides, 13.9% of the respondents used more concentration than standard and 12.1% of the respondents did not observe a rule of the pre-harvest spraying of pesticides. In a spraying time of pesticides, 38.9% of the respondents did it three hours over and the rate of protection equipment against pesticide-poisoning were protect suits(56.1%), gloves(85.8%), mask(87.7%), goggles(25.7%) and boots(78.6%). For the reason of discomfort in pesticide spraying, 75.9% of the respondents did not use the protection equipment. 40.6% of the respondents had a smoke or water during pesticide spray and 90.4% of the respondents took a bath after pesticide spray. 67.4% of the respondents kept the pesticides in a barn. In the treatment of pesticide bottles and package papers after used, 49.2% of the respondents buried under ground or burn it and 34.2% of them returned it to resources-recycling center. 41.7% of the respondents had experience in pesticide intoxication and the chief complains of it were headache(31.9%), dizziness(21.2%) and vomiting(20.8%), and 51.0% of the respondents visited the hospital for the care of pesticide intoxication. 74.3% of the respondents received the safety education of pesticide usage and the place conducted it were agricultural co-operative or apple co-operative(46.8%) and rural agricultural center(37.6%). 92.0% of the respondents recognized the pesticide residual toxicity of agricultural products. In the possibility of low-input pesticide fruit culture, 44.9% of the respondents thought it possible and 58.3% of them had a mind to do it.

      • 얇은 콘크리트 덧씌우기 포장의 실내 거동 분석

        구한모,윤태영,장진연,조윤호 중앙대학교 기술과학연구소 2002 기술과학연구소 논문집 Vol.32 No.-

        UTW(Ultra Thin Whiteopping)를 국내에 적용하기에 앞서, 기존 아스팔트 포장의 두께와 물성이 UTW의 거동에 어떻게 영향을 미치는가를 평가하였다. 자체 개발한 HWLS를 이용하여 아스팔트 두께, 콘크리트 두께, 그리고 온도를 변수로 실험을 진행하였다. 실험결과, 콘트리트층의 두께가 100mm일 경우에는 아스팔트층의 두께와 온도의 변화가 슬래브 하부 변형률에 미치는 영향이 작음을 알 수 있다. 하중 증가에 따른 변형률의 증가율도 콘크리트층의 두께가 50mm일 때에 비하여 상대적으로 적은 것을 확인하였다. 또한 콘크리트층의 두께가 50mm이고 아스팔트층의 두께가 150mm 이하의 조건에서는 하중 변화량에 따른 콘크리트층 하부의 변형률 증가량이 매우 크게 변화함을 확인하였다. 따라서, UTW를 적용할 때 밀링 후 아스팔트층의 최소 두께는 150mm가 적정한 것으로 판단된다. This research evaluated how the physical property and the thickness of asphalt pavements influence the behavior of UTW(Ultra Thin Whiteopping) before applying UTW to domestic pavements. HWLS (Heart Wheel Load Simulator), a wheel tracking type machine, was used to carry out an experiment using the thickness of asphalt and concrete pavements, and the temperature as the experimental variables. The result of the experiment showed that the effect of the thickness of the asphalt layer and the temperature change on the tensile strain in the bottom of the slab was insignificant when the thickness of the concrete was 100mm. In addition, the increased ratio of the tensile strain as the load increases was relatively smaller when compared with the 50mm and that of the asphalt layer was less than or equal to 150mm, the increased ratio of the tensile strain in the bottom of concrete slab with increased load was significantly greater. Thus, it is proposed that the minimum thickness of the asphalt layer after the milling must be at least 150mm for applying UTW safely.

      • 농업인의 농약사용 실태에 관한 조사 연구

        강희경,장두희,구한모 公州大學校 資源科學硏究所 1999 資源科學硏究論文集 Vol.7 No.-

        This survy was carried out in order to investigate the actul conditions and problems of pesticide use in farmers. A personal interviews on 252 farmers were conducted in Chungnam province as the central region by random sampling from May, 1998 to June,1999. The results were summarized as follows; In purchasing pesticide, 51.7% of the respondents purchase in pesticide shop and 44.2% of them in agricultural co-operative. Selecion of pesticide and the methods to know it were in order of achieved chiefly through the experience of neighbors, rural agricultural center and pesticide shop. In dilution ratio of pesticides, 38.9% of the respondents used more concentration than standard and 15.5% of the respondents did not observd a rule of the pre-harvest spraying of pesticides. Sprying time of pesticides was 1~2 hours in 51.6% of the respondents and the rate of protestion equipment against pesticide-poisining were protect suits(44.4%), gloves(58.3%),mask(84.1%), goggles(23.0%) and boots(65.1%).76.0%of them did not use the protection equipment for the reacon discomfort in pesticide spray. During pesticide spray 62.3% of the respondents had a smoke or water, and after pesticide spray 78.6% of the respondents took a bath. 70.2% of the resopondents kept the pesticides in a barn. In the treatment of pesticide bottles and package papers, 49.6% of the respondents buried under the ground or burn it and 35.3% of them returned it to resources-recyling center. 35.3%of the respondents had experience in pesticide intoxication and thd chief complains of to were headache(30.7%),vomition(23.6%), dizziness(14.9%) and skin manifestation(11.6%), and 49.4% of the respondents visited the hospital for the care of pesticide intoxication. 56.0% of the respondents received the safety education of pesticide usage and the place conducted it were rural agricultural center(53.8%) and agricultural co-operative(25.4%). 88.9% of the respondents recognized the pesticide residual toxicity of agricultural products, On the possibility of no-pesticide culture, 67.9% of the respondents thought it impossible but 52.0% of them had a mind to do it.

      • KCI등재

        A Seedbrone Fungus Bipolaris spicifera Deteced from Imported Grass Seeds

        구한모,정일민,Sang-HunLee,Se-ChulChun 한국식물병리학회 2003 Plant Pathology Journal Vol.19 No.3

        Seedborne fungus Bipolaris spicifera, which has not been previously reported in Korea, was detected from imported grass seeds in the country. The most frequently detected fungi from the seeds were Fusarium species, Ulocladium atrum, B. spicifera, Alternaria, and Cuvularia lunata among 17 different seed samples of the family Gramineae. Detection frequencies of B. spicifera were 11, 8, 5% in Bermuda grass, tall fescue, and mixed lawn grass imported from USA, respectively, and 9% in mixed lawn grass imported from Italy. This suggests that important seedborne pathogen could be spread between countries through seed sources. The pathogen was seed-transmitted causing damping-off of Bermuda grass seedlings and showed strong pathogenicity to rice, corn, Bermuda grass, sorghum, and tall fescue. However, it did not infect wheat and blue grass.

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