보문 : Polyethylene Film포장이 포도 Sheridan의 저장력에 미치는 영향

남상영(Sang Young Nam),김경미(Kyoung Mi Kim),박종천(Jong Chun Park),주선종(Seon Jong Joo),정재현(Jai Hyun Jung) 한국식품저장유통학회(구 한국농산물저장유통학회) 1997 한국식품저장유통학회지 Vol.4 No.1

애멸구 發生의 地域的 特性 : -誘蛾燈資料의 統計的 特性-

玄在善 서울大學校 農科大學 1977 서울대농학연구지 Vol.2 No.2

The daily light trap catches of the smaller brown planthoppers from 1965 to 1976 in Korea were analysed in relation to the characteristics of the type of catches in various locations. Years with unreliable data were omitted and only locations with more than 500 annual catches of six or more years used. The results were as follows: 1. The annual catches of the insects and the per cents of the accumulated catches by the end of July were relatively low in the locations north to 37°in latitude, and it is suggested that it might be related with the lower population of the overwintered nymphs and delayed build up in populations. 2. It was noticed that some abnormal catches; unusually great numbers were caught on a day in comparison with those on the previous and on the next days, were observed in Daegu, Jincheon, Boeun, Sangju, which are located in the mountainous areas. 3. The per cents of the corrected data, which were calculated from the data excluding the abnormal catches, and the numbers of the insect on the previous and on the next days, to the actual catches and the per cents of the accumulated catches by the end of July to the annual ones were high in the far southern locations and early populations build up seemed to be fast. 4. The annual catches were smaller in the eastern parts than in the western locations of Taebaek Mountains. 5. The western areas of the Taebaek Mountains south to the 37°in latitude could be divided by Charyung, Noryung and Sobaek mountains, and the locations north to the Charyung Mountains had relatively low catching ratio by the end of July. The locations south to the Sobaek Mountains had greater annual catches and higher per cents of catches comparison to the north by the end of July, specially the per cents of the accmulated catches by the end of June were great. The plains between Charyung and Sobaek Mountains have intermediate types and considerably different in types among the locations. 6. Following types could be recognized in Korea. a. Northern type: North to 37°in latitude. b. Eastern type: Eastern parts of the Taebaek Mountains. c. Western type: Western parts of of the Taebaek Mountains: 1. Seosan type: North to the Charyung Mountains. 2. Honam plain type: Plain areas between the Charyung and Sobaek Mountains. 3. Southern coastal type: Coastal areas of southern sea. 4. Daegu type: Daegu inland areas.

사과를 加害하는 응애類 個體群 動態에 關한 硏究

玄在善,李順遠 서울大學校 農科大學 1985 서울대농학연구지 Vol.10 No.1

1982∼1984年 걸쳐 殺蟲劑와 殺비劑의 處理 및 地面雜草 管理를 달리 하면서, 食植性 응애類의 發生 및 密度變動과 이들의 主要天敵인 捕食性 응애類의 種類 및 活動狀況을 調査하여 다음과 같이 結果를 얻었다. 1. 사과응애는 5月부터 出現하여 7∼8月에 最高 密度에 達하고 以後 10月까지도 發生하였으나, 殺비劑撒布下에서는 대체로 年中 密度가 낮게 維推되었다. 2. 점박이응에는 前年度 越冬密度가 높을 경우에는 5月부터 樹上에 出現하고, 越冬密度가 거의 없을 경우에는 7月 以後에 近接한 棲息處에서 分散·移動하였고, 7∼8月에 급격히 密度가 增加되며, 9∼10月에도 繼續높은 密度를 維持하였다. 또한 殺비劑 處理後 密度回復이 일어나서 處理前보다 휠씬 높은 密度로 增加하는 傾向이 있었다. 3. 殺비劑를 地面撒布하거나 淸耕栽培를 하는 것이 本 試驗區 狀況下에서는 점박이응애의 樹上密度 抑制에 큰 影響을 주지 못하였으며, 捕食性 응애類에 대해서는 오히려 減少시키는 影響이 있었다. 4. 捕食性 응애로 Amblyseius longispinosus(Evans)와 Agistemus terminalis(Quayle) 두種이 發見되었으며 前者는 韓國에서 새로이 發見되었으며, A. longispinosus는 점박이응애에 좀더 效果的인 捕食응애였으나 環境條作에 따라 發生量에 큰 差異가 있었고, A. terminalis는 捕食效果는 낮은 반면에 比較的 安定된 發生相을 나타내어 今後 이들에 대한 評價가 要求된다. The purpose of this study was to examine the seasonal population dynamics of the two phytophagous mites ; two-spotted spider mite. Tetranychus urticae Koch, and European red mite, Panonychus ulmi (Koch), and to evaluate their predaceous mites in the apple orchard. The European red mite seemed to be minor pest, and it seemed to be effectively controlled by the acaricide application. But, the two-spotted spider mite seemed to be the most serious pest. Its density became high enough to require some control measures by middle or late July. There seemed to be common phenomenon of resurgence to the acaricide application in this mite, therefore its density gets the position of economic injury level in short time after treatment. The two-spotted spider mite also feeds on various broad leaf weeds growing under the apple tree in the spring, and later moves to apple tree when the nutritional conditions of the host and other cultural environments become unfavorable. Therefore, the population dynamics not only in the tree but also on the ground cover were important for effective control of the two-spotted spider mites. Two predaceous mites were found ; Amblyseius longispinosus (Evans), and Agistemus terminalis(Quayle). A. longispinosus was effective biological control agent to the two-spotted spider mite, but its density was highly variable with the management system from one plot to another, and from year to year. The density of A. terminalis was considerably high except on the pesticides treated plots, and seemed to be effective predator for the phytophagous mites after August.

담수지에서의 식물성 Plankton 군집의 계절적 변동에 관한 연구 : Study on Phytoplankton Population Dynamics in Two Reservoirs

현재선,양승원 서울대학교농과대학농업개발연구소 1989 서울대농학연구지 Vol.14 No.2

This study was carried out to examine the seasonal changes of abiotic factors and characteristics of phytoplanktonic community to investigate the probable casual relationship between them at two reservoirs near Suweon City during the period from August 1987 to July 1989. 1. Caracteristics of physical and chemical factors. 1-1. The water temperatures were higher at Ilweol reservior than at Uncheon reservoir throughout the year with exception January and February, 1988. 1-2. The dissolved oxygen concentrations (ppm) and its saturations were higher at Ilweol reservoir than Ucheon reservoir in spring and fall, but low in winter. 1-3. The average concentrations of NH₄-N (ppm) were about 2 times higher at Ilweol reservoir, than at Ucheon reservoir and 15 times at the winter peak. 1-4. The concentrations of PO₄-P (ppm) were so as NH₄-N, but its absolute concentrations and variation were lower than NH₄-N. 1-5. The values of pH were slightly higher at Ilweol reservoir than at Ucheon reservoir, low in winter and increased toward summer. 2. Characteristics of phytoplanktonic community. 2-1. The total species identified were 209 species in 84 genera; 149 species in 48 genera at Ilweol reservoir, and 182 species in 66 genera at Ucheon reservoir. Reservoir-specific species were 29 species in 18 genera at Ilweol reservoir, and 59 species in 36 genera at Ucheon reservoir. 2-2. The average densities of the phytoplankton were greater at Ilweol reservoir than at Ucheon reservoir, and so in vaiations. 2-3. In general, the dominant plankton groups were green algae for Ilweol reservoir and diatom for Ucheon reservoir during the study. 2-4. Dominance indicies were greater at Ilweol reservoir than at Ucheon reservoir. While species diversity indicies (Shannon, Evenness, Richness indicies) were greater at Ucheon reservoir than at Ilweol reservoir throughout the year. 2-5. Cyclotella meneghiniana seems to be the common dominant species throughout the year in two reservoirs. The seasonal dominant species showed considerable difference between the two reservoirs, reflecting the difference in the conditions of mineral nutrients at two reservoirs. The relationship between the dominant species and the two mineral nutrientswas examined and found significant for NH₄-N, indicating to be more important than PO₄-P. 2-6. The dominant plankton genera were Oscillatoria, Anabaena, Microcystis, Merismopedia (blue-green algae), Scenedesmus, Micractinium, Ankistodesmus, Golenkinia (green algae), and Cyclotella (diatom) for Ilweol reservoir, while Synedra, Fragilaria, Tabellaria (diatom), Staurastrum, Characium, Pleurotaenium, Astrococcus, Chlorella(green- algae), and Oscillatoria (blue-green algae) for Ucheon reservoir.

직장점막전이를 동반한 항문편평상피암과 S상결장선암의 동시성 암 1예-증례 보고-

류재현,심강섭,김광호,박응범 대한대장항문학회 1998 Annals of Coloproctolgy Vol.14 No.3

環境條件이 다른 두 湖水에 있어서 植物性 Plankton 群集의 特性에 關한 硏究 : I.無機環境要因의 季節的 變動 I. Seasonal changes in abiotic factors

玄在善,黃淳珍 서울大學校 農科大學 1986 서울대농학연구지 Vol.11 No.1

This study was carried out to examine the seasonal changes in the abiotic conditions in two reservoirs on the outskirts of Suweon City. The water temperatures, dissolved oxygen,NH₄-N, PO₄-P, saturation rate of oxygen, and pH values throughout the period from September, 1984, to August, 1985, were measured. Ilweol reservair seems to have characteristics of eutrophic conditions than those of Ucheon reservoir in the examined conditions.

意思決定分析의 內容과 方法

朴賢哉 嶺南大學校社會科學硏究所 1984 社會科學硏究 Vol.4 No.1

Gerbera(Gerbera hybrida Hort)의 형태적 특징과 유전적 유연관계 분석

김현애,임현희,양원진,이재헌,이병영,이용문,권오창 동아대학교 농업생명과학연구소 2001 農業生命資援硏究 Vol.10 No.1

This study was conducted to analyze the morphological characteristics and genetic relationships among 24 species of Gerbera. Most of flower colors were pink. The numerical order of flower color was pink, orange, red, double-colored, and milk-white. Majority of flower types were single or semidouble flowers. A few species were double flowers. Flower diameters were from 7cm to 12cm, showed significant differences compared to other characteristics. Flower stalks were ranged from 55cm to 65cm. Only one species was the shortest as 55cm. The others were similar size as about 65cm. Main annual production yields were between 190 and 400 blossoms. Fifty seven reproducible polymorphic bands from eighty primers were used for analyses of genetic similarity. The genetic similarity of 24 collected Gerberas was largely classified into five groups. The average similarity coefficient was 0.72 ranged from 0.50 to 0.90. The highest similarity coefficient was shown between 'Sardana' with red/white flower color and double flower type, and 'Tamara' with orange flower color and double flower type as 0.90.

저작근에 전이된 신세포암 1예

정재현;황인성;유지형;성락희;노충희;정재용 인제대학교 2011 仁濟醫學 Vol.32 No.-

Renal cell carcinoma is the third most common neoplasia of the genitourinary tract. Its most common type, representing 60% of the cases, is the clear cell carcinoma, with an incidence peak between 50 and 70 years. Metastases are present at the time of diagnosis in approximately 30% of the patients, the major sites being lungs, bones, skin, liver, and brain. But distant metastasis of malignant neoplasm to the masseter muscle is extremely rare. We report a case of renal cell carcinoma (RCC) metastasizing to the masseter muscle.

C-3 및 C-7(치환) 세파로스포린계 항생제의 합성과 항균활성에 관한 연구(2)

河在天,高玉鉉,姜馨龍 조선대학교 약학연구소 1995 藥學硏究誌 Vol.17 No.1

In order to development new cephalosporin antibiotics 7β[(z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetamido]-3-[5-(1,5-dimethyl-2-pyrroletetrazol-2-yl]methyl-3-cephem-4-carboxylic acid(9) and 7β-[(z)-2-(2-aminothiazol-4-yl)-2-(methoxyimi no) acetamido]-3-[5-naphthyltetrazol-2-yl]methyl-3-cephem-4-carboxylic acid(10) were synthesized. These compounds were tested for antimicrobial activities in vitro against Bacillus subtilis ATCC 6633, Micrococcus luteus ATCC 9341, Mycobacterium phlei IFO 3158, Alcaligenes faecalis KCTC 1004, Escherichia coli 8S, Salmonella typimurium KCTC 1925, Pseudomonas aeruginosa IFO 13130, Klebsiella pneumoniae KCTC 1560 and Candida albicans ATCC 10231, respectively. Compound(10) showed good antimicrobial activities against Bacillus subtilis ATCC 6633, Micrococcus luteus ATCC 9341 and Mycobacterium phlei IFO 3158 but compound(9) showed lower antimicrobial activities as compare with cefotaxime and cefazolin.