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      • PHYLOGENY OF MADS-BOX GENES : ITS RELEVANCE FOR PLANT BREEDING AND THE EVOLUTION OF FLOWER DEVELOPMENT

        Günter Theiβen,Annette Becker,Jorge Cacharron,Wim Deleu,Alexandra Di Rosa,Wolfram Faigl,Akira Kanno,Jan T. Kim,Charlotte Kirchner,Zheng Meng,Thomas Munster,Sunsane Werth,Luzie Ursula Wingen,Kai-U Plant molecular biology and biotechnology research 1998 Proceedings the 2nd Korean-Germany joint symposium Vol.1998 No.-

        MADS-box genes (Schwarz-Sommer et al. 1990) contribute significantly to the development of inflorescences and flowers, e.g. by acting as floral meristem or organ identity genes (for recent reviews, see Thei?en and Saedler 1995; Thei?en et al. 1996;Riechmann and Meyerowitz 1997). Up to now, MADS-box genes have mainly been studied in the scientific context of developmental biology, and in eudicotyledonous model plants of little commercial value, such as Antirrhinum and Arabidopsis. The focus of our group is to apply our current knowledge about flower development to breeding research and evolutionary biology. Therefore, we are currently characterizing the MADS-box gene family in the important monocotyledonous crop plant maize (Zea mays ssp. mays), and in other phylogenetic informative taxa, such as the monocots lily (Lilium regale) and tulip (Tulipa gesneriana), the basal angiosperm Cabomba, and non-flowering plnats including the gymnosperm Gnetum gnemon and the ferns Ceratopteris and Ophioglossum.

      • KCI등재

        Morphology and Mechanical Properties of Thermoplastic Polyurethane/Colemanite Composites

        Ferhat ?en,Seyfullah Madakba?,Emre Ba?turk,Memet Vezir Kahraman 한국고분자학회 2017 폴리머 Vol.41 No.6

        The aim of this study was to improve thermal stability, mechanical and surface properties of thermoplastic polyurethane (TPU) with the addition of colemanite. The TPU/colemanite composites having various ratios of TPU and colemanite were prepared. The chemical structure of the prepared composites was investigated by Fourier transform infrared spectroscopy (FTIR). Thermal properties of the samples were evaluated by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). Mechanical properties of the samples were characterized with stress-strain test. Hydrophobicity of the samples was determined by the contact angle measurements. Moreover, the surface morphology of the samples was investigated by a scanning electron microscopy - energy dispersive spectrometer mapping (SEMEDS). Finally, the obtained results prove that the prepared composites have good thermal, mechanical and surface properties and that they can be used in many applications such as the electronic devices, materials engineering and other emergent.

      • KCI등재후보
      • 이상재 형성에 따른 소나무 방향별 나이테 너비 및 가도관 길이 비교

        최은비, 신태수, 서정욱 충북대학교 농업과학기술연구소 2022 農業科學硏究 Vol.38 No.2

        To investigate the anatomical characteristics of the compression (CW), opposite (OW) and side woods (SW) in Pinus densiflora the tree-ring widths and tracheid lengths therein were measured and compared. The sample tree was plated at Seoul forest from Uljin in 2004. The tracheid length was mea- sured separately in the earlywood and latewood. The most wide tree-ring width was measured in CW and than SW and OW. The length of tracheids had been gradually increased until 2000 by aging. After that, the lengths became more or less stable. Based on the measurement data, we could conclude that the sample tree formed the mature wood from 2000.

      • 저주파 filter를 이용한 Hu¨bner 반복법의 자동화 알고리즘

        송은지 남서울대학교 1997 남서울대학교 논문집 Vol.3 No.-

        Studies of conformal maps from the unit disk onto a Jordan region are used for solving the Theodorsen's equation. This is an integral equation for the boundary correspondence function. Among numerical conformal mappings, the Hu¨bner's method is well known for being Newton-like. However, this method dose not have a fast convergence on relatively complicated problems. We proposed an improved method for fast convergence by applying a low-frequency filter to the Hu¨bner's method[1]. In this paper, we show automatic algorithms of Theodorsen equation that are solved automatically in accordance with the given problem and required accuracy. Until now, required, discrete numbers and filter's parameter were obtained by experience. These algorithms are efficient software that automatically decide discrete numbers and required filter's paramter. We can obtain these algorithms by analysis of functions that decide the shape of a given problem domain.

      • 癸丑日記는 果然 小說인가? : 장르 把握을 위한 再照明 Spotlight on the Genre of the Gyechook Diary

        鄭恩任 숙명여자대학교 대학원원우회 1986 원우논총 Vol.4 No.-

        In this essay, the two genres of novel and misceilany are differently applied to the Gyechook Diary. As the result of that, the factors of miscellany were found in it as follows; First, the Gyechook Diary has the feature of miscellany that the writer writes what he has seen, heard and felt, because its subjects were the event of jailing persons in the year of Gyechook, 1613 and the tragedy of locking up Inmok, the Grand Queen. Second, the reason of applying the genre of novel to the diary, they say, is that the motive of promoting goodness and punishing badness, presented in the work, was a feature of the ancient novel. But the motive of promoting goodness and punishing badness is, as a product of a moralized society, not only the feature of the ancient novel, but also the important subject of Shicho, the Korean lyric and Gasa, the Korean Epic. Third, the conception of the fiction which has been used as another name of novel can be largely applied in the other genres besides the novel nowadays. So, the fictionalizing and the tight plot found in the work can be the reasons for evaluating it as a masterpiece of miscellany. Fourth the brevity of style and the concrete, realistic expression of the work are different from the abstract, magniloquent style of the ancient novel. From the several viewpoints above, as a literature of soliloquy of "the writer himself speaks", the Gyechook Diary is close to the genre of miscellany rather than of novel. So, the view that the Gyechook Diary belongs to the court novels with Hanchoonglok and the biography of Inhyun the Queen must be reconsidered.

      • KCI등재
      • 日本의 古庭園에 關한 硏究 : 修學院離官 庭園을 中心으로

        朴仁鉉 圓光大學校 1981 論文集 Vol.15 No.1

        Shugakuin Imperial villa garden was built by the imperial family, and artificial technique was well harmonized with the description of the literary expression in nature, especially borrowed scenery technics was introduced into it. Some characteristics of the garden is summarized as follows by enumeration. 1. The area of shugakuin Imperial villa garden is 455, 000 square meters and the foot of mountain and the flat ground was utilized very harmously and techniques of building garden harmonized with nature was employed by dividing the garden into Simono-O-Chaya, Nakano-O-Chaya, and Kamino-O-Chaya. 2. A circuit was made three-dimentionally with the use of the configuration of the ground and intermediate view. Many mountains which continue mauntain after mountain, at a near view, at a middle view and at a distant view make the borrowed scenery and the prespect of the garden very effective. 3. It shows the characteristics of moulding of extensive tree trimming with using planting rather than stone material as garden material as far as possible. 4. The three-dimentional pint picture consisted of the circumference of Sam Bo Islandof the garden, the maple of momizitani, green pine trees, the extensive tree trimming of Nishihama, Cherries, are the pattern of garden planting. 5. The kind of planting are about seventy, much evergreens and proportional planting of ornamental trees and maple trees make the change of seasonable scenery. 6. Shugakiun Imperidal villa garden, the county and peasants, and all the circumstance of nature, were the only object of poetry or pictorial composition to the Emperor, Go-misu-Oh who last his political power and so had to be absorbed in cultural life. The extensive tree trimming before Rinun-tei and of Nishihama were the representation of resistance to the oppressive politics and the imperial power. Various mountains at a distantview let us vent our spite and wrath, while much planting and garden scenery will be attachment to his nation as the people, the emotional expression to console himself. 7. I think that Jo Sun stone lantern in Simono-o-chaya of the garden was the one which belongs to the Yi Dynasty period and that goreo lawn was introduced from Korea after the middle period of Ae Do. 8. Shugakuin Imperial villa garden is a circuit style garden(stroll-pond garden) which has been built with the use of the foot of a mountain and level ground three dimentiomally. 修學院離宮 庭園은 皇族에 依하여 創造된 것이며 自然속에 文學的인 表現을 描寫하여 人爲的인 手法이 잘 融合되고 있으며 特히 借景手法을 導入한 것이다. 여기에 그 庭園의 特徵을 列擧하면 다음과 같이 要約할 수 있다. 1. 修學院離宮 庭園은 그 面積이 455,000㎡이며 山麓과 平地를 잘 利用하였고 田園속에서 下, 中, 上의 茶屋으로 區分하여 自然과 融和된 造園手法을 갖었다. 그 自然의 大地形 및 景觀을 利用하여 廻遊를 立體的으로 하였고 近景, 中景 및 遠景에 많은 山들이 重復되것나 連지어 庭園의 借景과 眺望을 效果的으로 나타내고 있다. 3. 될 수 있으면 庭園에 石材를 排除하고 植栽를 主體로 하여 대예입의 造形的 特徵을 보이고 있다. 4. 修學院의 三保島 周邊과 紅葉谷의 단풍과 靑松 西濱의 대예입과 벚나무 및 단풍 等의 立體的 點景은 庭園植栽의 Pattern化한 것이 바람직 하다. 5. 庭園의 植栽種類는 約 70種이며 常綠樹가 많고 花木類 및 단풍 類가 있어 季節的 風景燮化를 이루고 있다. 6. 修學院離宮 庭園은 政治的 實權을 잃고 文化的 生活에 沒入할 수 밖에 없었던 後水屋天皇으로서는 田園과 農民 그리고 自然環境의 全部가 詩 또는 繪畵的 構圖의 對象일 뿐이었다. 憐雲亭前의 대예입은 西濱의 대예입은 德川幕府의 壓政에 反抗하며 皇權의 健在하는 浩然之氣의 表象이며 遠景의 多樣한 山峰들은 怨恨과 怒氣를 풀게 하고 많은 植栽와 田園風景은 百姓에로의 愛着과 自愚하려는 情緖的 表現일 것이다. 7. 修學院 下御茶屋에 있는 朝鮮燈籠은 李朝時代의 것으로 推定되며 高麗잔디는 江戶時代 中期 以後에 韓國에서 傳來된 것이라고 한다. 8. 修學院 庭園은 山麓과 平地를 立體的으로 하여 作庭된 池泉 廻遊式 庭園이다.

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