http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 이화영 (검색결과 1,027 건)
- 무료
- 기관 내 무료
- 유료
-
-
-
-
Studies on Cure Behavior and Thermal Stability of DGEBA/PMR-15 Blend system
이화영,박수진,이재락,홍성권 한국공업화학회 2002 한국공업화학회 연구논문 초록집 Vol.2002 No.0
The effects of different diglycidylether of bisphenol A (DGEBA) and polyimide (PMR-15) blend composition ratios on the thermal stabilities and cure behaviors are studied by TGA and dynamic DSC, respectively. In this work, DDM (4,4’-diamino diphenyl methane) is used as a curing agent for DGEBA and the content of DGEBA/PMR-15 is varied within 100/0~100/30 phr. Conversion (α), cure activation energy (E<sub>a</sub>), and glass transition temperature (T<sub>g</sub>) are determined by dynamic DSC and DMA. As a result, E<sub>a</sub> for the cure behavior obtained by dynamic DSC method using Kissinger equation, are increased at 10 phr of PMR-15 compared with neat DGEBA, and T<sub>g</sub> values of DGEBA/PMR-15 are increased within the 10~20 phr composition range of PMR-15. From the TGA results of DGEBA/PMR-15 blend system, the thermal stability based on initial decomposition temperature (IDT), integral procedural decomposition temperature (IPDT) and decomposed activation energy (E<sub>t</sub>) is investigated. The thermal stability is decreased with increasing the amount of PMR-15, up to 10 phr of PMR-15.
-
-
생쥐 뇌의 생후 발달에 따른 NADPH diaphorase 활성에 관한 조직 화학적 연구
이화영 단국대학교 1998 論文集 Vol.33 No.-
Nitric oxide(NO)is a short lived, unstable ree radical generated in many mammalian cells. It has a role s an intercellular messenger, in different biological processes such as neurotransmission and glutamate-mediated neurotoxicity, in regulation of vascular resistance and blood pressure, and immunological reactions. This novel neuromediator is though to play an important role in development and plasticity of brain. In this study, was aimed to examine the NADPH-diaphorase(NADPH-d) activity in the postnatal developing mouse brain. The results show that there is a great variation in the time of appearance of the NOS containing cells depending on their location: At the postnatal day 0, weakly stained cells were present in caudate-putamen, orbital neocortex, bed nucleus of stria terminalis, paraventricular hypothalamic nucleus, lateral hypothalamic area and mammillary body. The supraoptic nucleus and superior and inferior colliculi also showed weakly labeled neurons. The Purkinje cell layer displayed a diffuse activity throughout the cerebellum at postnatal ay0. At the 5th postnatal day, positive cells appeared in the hippocampus and in the cerebellum, the reaction product in the Purkinje cell layer and granular layer became more distinct. At the 10th postnatal day, the inner part of molecular layer became populated by NOS positive basket cells, and the reaction products on the Purkinje cells began to disappear. After the 15th postnatal day, stained Purkinje cells were no longer observed, and staining in the molecular layer was dominated. The present result showed that NOS in the rat brain is expressed in different populations of neurons at different stages of development. This expression pattern of NOS suggests that NO may play a role in the development remodelling of the mammalian brain.
-
볼프람 폰 에센바흐의 『파르치팔 Parzival』에 나타난 색채연구
이화영 충남대학교 인문과학연구소 2017 인문학연구 Vol.56 No.4
This study showed the colour symbolism in Wolfram von Eschenbach's Parzival. For this purpose, particularly striking scenes or characters are picked out and examined for their colour-specific pictoriality and their function. The important role of the characters in literature goes back to the time of the mid-German Artusromane. Linguistic signs can be found in almost any text, they are able to convey correlations of literature textes on a deeper level. Especially colour can be important signs. The Parzival by Wolfram von Eschenbach is one of the most important epic texts of the High middle in the German-speaking world. The symbolism of his text was much discussed. The text of Wolfram von Eschenbach is riddled with linguistic images, signs and metaphors to be interpreted. The prologue already introduces an important colour theme in Wolfram's work. The contrasting colour combination of black and white, which he constructs as a harmonious unit. While the use of black and white as a colour scheme often represents opposition, Wolfram allows both colour to coexist. Instead of the usual binary of good and evil, Wolfram shows a variation of the characteristics associated with the two individual colours. Feirefiz as representative of the Magpie parable is largely described positively. In this way, Wolfram creates a new human image that no longer corresponds to the binary good-evil or black-white, but breaks it down. 본 논문에서는 에센바흐의 『 파르치팔』에 등장하는 색채의 상징성을 다루었다. 특별히 ‘흰색’과 ‘검정색’의 대비를 통하여 작가의 세계관을 분석하는데 연구의 주안점을 두었다. 작가는 색채의 대비를 통하여 ‘동질성’과 ‘이질성’의 모습을 보여주고 있다. 서양문화를 상징하는 ‘흰색’은 서구인의 동질성을 보여주고 오리엔트를 표현하는 검정색은 서구인에게 있어서 하나의 이질적인 세계의 상징으로 다가오고 있다. 이러한 요소는 본래 크레티엥의 작품에 없던 요소이다. 에센바흐는 새로운 인물을 도입함으로서 독특한 창조적인 세계관을 제시하고 있다. 파이레피츠는 작품의 처음에 등장하였다가 작품에 다시 나타남으로 전체적인 줄거리를 유기적으로 연결시키는데 상징적인 역할을 한다.
-
-
李華永 공주대학교 사범대학 과학교육연구소 1988 과학교육연구 Vol.20 No.1
The fundamental concept of fuzzy sets and fuzzyness were applied in various areas. In 1974 Sugeno〔6〕defined the fuzzy integral as ∫Afdu = V 〔α∧μ({f > α}∩Α)〕. Α∈A, α>0 = = where { f > α } = { χεΧ|f (χ) >α}, and denote by "V" and "∧" the = = operations "sup" and "inf" in 〔0, ∞〕. In this paper we shall define the fuzzy-Lebesgue Integral with respect to a T-fuzzy measure as a modification of Sugeno's fuzzy integral and show that the monotone convergence theorem and Fatou's lemma hold for this fuzzy-Lebesgue integral.
-
이화영,남윤자 경희대학교 생활과학연구소 1998 생활과학논집 Vol.2 No.1
The Italian textiles have developed under the influence of the Gothic formin Naturalism and human-oriented Renaissance one. There was mass production in silk fabrics in the Renaissance age. Velvet among them was made in variety. Most of velvet was made for minded and religious purpose than practical one. A pomegranate pattern developed in fifteenth century was used by a valuable textile pattern in an important religion ceremony and popular from sixteenth century to seventeenth century. The purpose of this study is to identify contemporary textile, focused on the Italian ones, transformed by artistic craftsmen's action in those days from the fabric pattern formulated by guild before the Renaissance age.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
