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      • KCI등재
      • 象牙質 表面處理가 글라스 아이오노머 시멘트의 邊緣漏出에 미치는 影響에 關한 硏究

        趙正熙,洪燦義 단국대학교 치의학연구소 1992 논문집 Vol.4 No.-

        The purpose of this study was to evaluate the effect of the dentin pretreatment on the marginal leakage of a glass ionomer cement. In this study, 60 molars with sound and healthy crown portion were used. The dentin surface of these teeth were exposd and polished with 600 grit silicon carbide paper. Square-shaped cavities were prepared on the flattened dentin surfaces and these were divided in to 4 groups according to the dentin pretreatment procedures. Group Ⅰ : Dentin pretreatment with distilled water as a control group. Group Ⅱ : Dentin pretreatment with 5% sodium hypochlorite solution. Group Ⅲ : Dentin pretreatment with Ketac conditioner. Group Ⅳ : Dentin pretreatment with 40% polyacrylic acid. The degrees of dye penetration in the cavity walls were assessed using a stereoscope at x40 magnification according to the maximum dye penetration. The results were analyzed by using Mann-Whitney U test. The results were as follows : 1. All goups showed varying depth of dye penetration. 2. Distilled water group showed the most severe marginal leakage when compared with the other groups(P<0.05). 3. 40% polyacrylic acid group showed the least amount of marginal leakage compared with the other groups(P<0.05). 4. There were significant differences between Group Ⅰ(distilled water) and Group Ⅳ (40% polyacrylic acid)(P<0.05), but there were no significant differences among Group Ⅰ (distilled water), Group Ⅱ (5% sodium hypochlorite), Group Ⅲ (Ketac conditioner)(P>0.05)

      • 생약 표준화에 관한 연구(Ⅲ) : 글리시리진산 표준품 규격에 관한 연구 Studies on the specification of reference standards for glycyrrhizin

        조정희,강신복,김혜수,김영림,오미현,강인호,박성수,지선경,함일권,박만기 식품의약품안전청 1997 식품의약품안전청 연보 Vol.1 No.-

        The raw materials of glycyrrhizin were examined for the preparation of korea Food Drug Administration(KFDA) reference standard. The candidate materials were evaluated by plchemical analysis : UV, FT-IR, water content, specific optical rotation, DSC, NMR, GC/MS, LC/MS, and HPLC. Based on the above results, the candidate materials were authorized as the glycyrrhiziu erence standard of KFDA. Also, standard anality of Glycyrrhizae Radix were examined by glycyi contents( % ), residual pesticides and heavy metal analysis. Glycyrrhizin contents of Glycyrrhizae Ran were 2.1~5.7% by HPLC analysis (column; u-Bondapak C_(18), mobile phase : diluted acetic acid(1→15) CH_(3)CN (3 : 2), detector : UV 254nm). The results of pesticide residue and heavy metat analysis passed for KFDA specification.

      • KCI등재

        베를라헤 건축에 나타나는 헤겔 미학의 특성에 관한 연구 - 암스테르담 증권거래소와 헤이그 시립미술관 중심으로 -

        조정희,윤재희,오장환 대한건축학회지회연합회 2015 대한건축학회연합논문집 Vol.17 No.6

        본 연구는 베를라헤의 건축에 나타나는 미학적 영향에 관한 연구이다. 베를라헤는 19세기 말 역사적으로 복잡한 배경과 함께 미학적 이론을 바탕으로 그의 건축적 이상을 제시한다. 베를라헤의 건축적 이상은 근대성의 의미와 시대정신으로 인정되는 포괄적 경향을 가진다. 궁극적으로 이러한 미학적 경향은 베를라헤를 헤겔의 미학으로 이어지며 그의 건축 작품을 통해 드러난다. This is a study focused on Hegel’s aesthetic influence appeared in Berlage’s architecture. Berlage shows his architectural ideas based on the aesthetic theory with a complicated historical background in the end of 19th century. The Berlage’s architectural idea is a feature of the ‘comprehensive trend’ which is strongly recognized the Zeitgeist and the meaning of modernity. Berlage draws the architectural idea called ‘Unity in Diversity’ from aesthetic ideas, especially through those of Hegel. This study focuses on Hegel’s influence and Berlage’s architectural idea revealed through his two works, ‘The Amsterdam Stock Exchange’ and ‘The Hague Municipal Museum.’ In a word, Berlage struggles to shows his architectural ideas of the ‘comprehensive trend’ which he recognizes the meaning of the modernity even in the conflicted situation of historicism and new architecture at that time.

      • 妓女服飾考

        趙貞嬉 同德女子大學校 1978 同大論叢 Vol.8 No.1

        Today, the word "Ki-Saeng"(entertaining woman) alas turned upon as a relic of the old age, however, Ki-Saeng cannot be ignored under no circumstances in the history of our Korean women both in sociological and cultural historic account. Accrdingly, the study on their costume is one aspect of our costume history, and it is quite a subject that should be handled properly and justly. It seems, however, no one has ever studied about Ki-Saeng's costume regularly until now. Because of this reason, it is certainly difficult to look for any practical illustrations or documents about Ki-Saeng's costume all through the period from early times till the middle part of Yi-dynasty. However, from the middle and late period of Yi-dynasty, in those literary works and pictures-the reflection of our old ancestors' emotional mood of living and thier customs-a great deal of materials that can be some good references for the Ki-Saeng's costume lie scattered here and there. The result of collecting and examining these materials synthetically can show as follows: 1. Even if it is Ki-Saeng's costume it cannot free itself of the general Korean race women's costume. 2. Since Ki-Saeng were the comforts of men their costume was diffirent from that of ordinary women in the elength o( Jogori(upper garment)-theirs was much shorter, and the way of wearing the skirt was also different, that is, they wore the skirt in the way that the trin of the skirt swayed round to the front on the stomach and binding it with a kind of girdle. So the Sokkot (underwear) naturally exposed when they walked around. There fore, their Sokkot was to be more gorgeous than the skirt itself being made of silk usually, showing its nature namely "sex appeal". 3, Ki-Saengs were low class people, but they could wear silk colthes leather warm shoes and expensive ornaments just as Wellas the upper class ladies. So tile costume of Ki-Nyeu (young Ki-Saeng) appeared in "Choon H)'ably Jeun" (Typical Korean classic) is so luxurious and extravagant that it can hardy be called tee costume of a more local child Ki-Saeng according to the poor circumstance of our country at that time, 4. They made a differece between the Ynag Ban Nyeu (upper class girl) and Ki-Saeng or Ki-Nyeu in the length of Mongsu or Kaedu (kinds of hat). 5. Ki-Saeng could not wear Mlkum (skirt and socks) on their horstback riding. Now we can see that they distinguished the social position of Ki-Saeng by the two points of distiction mentioned above even though they were allowed to bt splenddly and beautifully dressed.

      • EPID의 적정관리 도구로서의 유용성에 관한 연구

        조정희,방동완,윤성익,박재일,Cho Jung Hee,Bang Dong Wan,Yoon Seong Ik,Park Jae Il 대한방사선치료학회 1999 大韓放射線治療技術學會誌 Vol.11 No.1

        Purpose : The aim of this study is to conform the possibility of the liquid type EPID as a QC tools to clinical indication and of replacement of the film dosimetry. Aditional aim is to describe a procedure for the use of a EPID as a physics calibration tool in the measurements of radiation beam parameters which are typically carried out with film. Method & Materials : In this study we used the Clinac 2100c/d with EPID. This system contains 65536 liquid-filled ion chambers arranged in a $256{\times}256$ matrix and the imaging area is $32.5{\times}32.5cm$ with liquid layer thickness of 1mm. The EPID was tested for different field sizes under typical clinical conditions and pixel values were calibrated against dose by producing images using various thickness of lead attenuators(lead step wedge) using 6 & 10MV x-ray. We placed various thickness of lead on the table of linear accelerator and set the portal vision an SDD of 100cm. To acquire portal image we change the field size and energy, and we recorded the average pixel value in a $3{\times}3$ pixel region of interest(ROI) at field center was recorded. The pixel values were also measured for different field sizes in order to evaluate the dependence of pixel value on x-ray energy spectrum and various scatter components. Result : The EPID, as a whole, was useful as a QA tool and dosimetry device. In mechanical check, cross-hair centering was well matched and the error was less than ?2mm and light/radiation field coincidence was less than 1mm also. In portal dosimetry the wider the field size the the higher the pixel value and as the lead thickness increase, the pixel value was exponentially decreased. Conclusions : The EPID was very suitable for QA tools and it can be used to measure exit dose during patients treatment with reasonable accuracy. But when indicate the EPID to clincal study deep consideration required

      • 노인을 위한 집합주거 환경의 실태 : 서울시내 두 양로원을 중심으로

        조정희,진희경,박진덕,정미경,이연정,조선영,구지희 연세대학교 생활과학대학 1986 婦學 Vol.19 No.-

        Due to the elonagation of human life span and the change in family composition, old people's problem in being a social problem. Especially problem of old people's dwelling is getting serious. Present dwelling institutions for old people has a function of primitive accomodation and even more these need improvement in quality and in quantity. In this research, after examining the planning guides, we compared them with the actual conditions investigated. As a result, there found great gaps between them except for the floor and the stair space. Only 32% of items composed satisfied the requirements. Therefore the research and investigation of welfare dewelling for old people must be encouraged and the future plan should apply these research result.

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