폴리프로필렌 纖維用 Carbene染料의 開發에 關한 硏究

李學沂,林龍進,민경은 慶北大學校 1982 論文集 Vol.33 No.-

Reactive dyes, which reaction center is carbene, were prepared and the dyeability of polypropylene fiber by those dyestuffs was investigated. Furthermore, a new say of dyeing and an applied technique for pretreating polypropylene with carbenic precursor were studied to improve dyeability. In this experiment, ketones were used as starting materials because these are mostly common functional group in dyes and dyestuff intermediates. Ketones could be changed to tosylhydrazone derivatives by tosylhydrazine in methanol at 0℃ in the presence of aqueous hydrochloric acid. Reactive carbenic dyes were prepared by the reaction of n-butyllithium and these hydrazone derivatives in ethly ether solvent. Dyed polypropylene showed excellent endurance to the light and preserverance to laundry, which were confirmed by means of blue and gray scales. The fact that polypropylene was bonded covalently to dyestuff molecules was confirmed by extraction and reprecipitation. Using the aldehyde as the starting material, carbenic precursor was also prepared analogous route to the dyestuff. After pretreating polypropylene fiber with this precursor, dyeing pattern of fiber in acidic media with butyl orange showed similar adsorption curve which is the typical results of acidic dyeing process. It means that polypropylene could be dyed easily in acidic media if it had pretreated by carbenic precursor.

意味辨別法으로 測定한 敎師像에 관한 一硏究

李恩玉,李學柱 울산대학교 1985 연구논문집 Vol.16 No.2

本 硏究는 大學生이 갖는 敎師像을 意味 辨別法으로 測定·分析하기 위하여 40쌍의 대칭되는 形容詞間項을 사용하였다. 標集은 서울과 지방에서 4개 대학을 선정, 모두 579명으로부터 資料를 募集하였고. 資料는 全體, 性別, 系列別로 平均, 標準偏差를 算出하고, t-檢證 및 要因分析 하였으며 그 結果는 다음과 같다. 1. 全體的으로 大學生이 갖는 敎師像은 肯定的이나, 그 지지정도는 多小 中立的이어서 鮮明하지 않다. 部分的으로 活動, 力能次元에서는 否定的인 경향도 나타내고 있다. 가장 肯定的인 반응을 보인 문항은 '중요하다', '自尊心이 강하다', '精神的', '깨끗하다' 등이었고, 가장 否定的인 반응을 보인 문항은 '소심하다', '보수적이다', '방어적', '고지식하다' 등이었다. 2. 大學生의 性別에 따른 敎師像은 男學生이 女學生에 비해 훨씬 强하게 肯定皓일 경향을 나타내고 있다. 이런 경향은 '순진하다', '깨끗하다', '옳다', '똑똑하다', '헌신적이다'라는문항에서 두드러지게 나타났다. 3. 大學生의 系列別에 따른 敎師像은 非師範系가 師範系 學生에 비해 다소 肯定인 경향을 나타내고 있다. 이런 경향은 '깨끗하다', '새롭다', '의욕적'이라는 문항에서 나타나고 있다. 4. 大學生이 갖는 敎師像의 栗因構造는 "進取性"과 "誠實性"이 대부분을 차지하고 있는데, 이중 진취성에는 부정적인 경향을, 성실성에는 긍정적인 경향을 나타내고 있다. 以上의 結果를 토대로 볼때, 大學生에게 비쳐진 敎師의 이미지는 全般的으로는 肯定的이나, 倫理·道德的인 側面에서는 보다 肯定的 方向에서, 活動·力能面에서는 多小 否定的일 方向에서 知覺되고 있으며, 이런 경향은 男學生이나 比師範系 學生보다는 女學生, 師範系 學生에게서 더욱 두드러지게 나타나므로, 漸增하고 있는 敎職의 女性化 추세에 비추어 現行의 師範·敎職敎育에서 이에 대한 적절한 對策 마련이 있어야 할 것이다. This study is an attempt to measure college students' image on "teacher", and to determine the factor structure of the image. This study used a semantic differential scale that was constructed with 40 bipolar adjective items. The scale was administered to 579 college students. Mean scores were computed for every adjective pair for the male group, the female group, the teacher-training course students, non-teacher-training course students and the combined group. This analysis showed a tendency that 1) the college students, generally, had positive images on "teacher". Only on 7 items, they showed negative tendencies such as "narrow-minded, " "conservative" , "defensive" , "simple-minded" etc. The most positive responses were "important", "self-respectful", "spiritual", "clean" act. 2) Significance tests for the sex difference showed that the male students had more strongly positive images on 16 items and more negative images on 1 item on teacher than the female students. That is, the male students' images on "teacher" were more incline toward "pure", "clean", "right", "clever", "self-sacrificing", and less toward "talkative". 3) Significance tests for the course difference showed that the non-teacher-training course students had more positive images on 7 items and more negative images on 2 items on teacher than the teacher-training course students. That is, the non-teacher-training course students' images on ."teacher" were more inclined toward "clean", "new", "willingly" and less toward "difficult" , "talkative". And the data were subjected to factor analysis. Using a criterion of eigenvalue greater than, 1, followed by the varimax rotation, 9 factors were selected. The common variance of 56.5% in the meaning or image of "teacher" were calculated for all these 9 factors. Items that had factor score coefficient of .10 or greater on a single factor were arbitrarilly selected to represent that factor. The 9 factors have been named "Progressiveness", "Sincerity", "Nobility", "Self-Fulfilment", "Sagacity" , "Quickness" , "Complexity" , "Faithfulness" . Among the factors, the 1st factor (Progressiveness) accounted for 25.6% of the common variance, 55% of the common variance accounted for 9 factors. This implies that "Progressiveness" dimension is the most important for assessment of the "teacher" image. But the students showed negative tendency in 1st dimension. The 2nd factor (Sincerity) accounted for 7.7% of the common variance, 14.2% of the common variance accounted for 9 factors. In 2nd dimension, the students showed positive tendency. The results imply that students have image on "teacher" who was "negative", "narrow-minded", "conservative", "defensive", "simple-minded", "weak", but "selfsacrificing", "sincere", "responsible", "clean", "believable"

重金屬Ion과 Chelate를 形成하는 Aminocarboxylic Acid 樹脂의 合成

李學沂,金祐埴,민경은,權五亮 慶北大學校 1980 論文集 Vol.29 No.-

Crosslinked polyacrylamide was prepared from acrylamide and divinylbenzene by the radical polymerization in methanol to prepare crosslinked polyvinylamine by the Hofmann reaction. Crosslinked aminocarboxylic acid resin was finally prepared by the reaction of crosslinked polyvinylamine and chloroacetic acid. The adsorption of crosslinked aminocarboxylic resin for Cu^+2, Zn^+2, Ni^+2, and Co^+2 varies with pH and the resin shows a high adsorption in the range of pH 6-7. The order of adsorption for heavy metal ions was Cu^+2>Zn^+2>Ni^+2>Co^+2 at the above pH region.

내독소로 유발된 삼추성 중이염에서 TNF-α Inhibitor의 효과

전은주,박용수,최영철,이정학 대한이비인후과학회 2000 대한이비인후과학회지 두경부외과학 Vol.43 No.10

풍력발전의 설비이용율 특성연구

이계주,이은학,김유남 한라대학교 2009 論文集 Vol.12 No.-

The scheme described checking the change transition for annual average plant factor month and season respectively as standard with measuring power exchange on Korea Power Exchange (KPX) from 2003 to 2006 and analysis of characteristic of output of wind power on a huge Wind Power Plant Complex which is selected for evaluating capacity of wind pover The result of the change transition for annual average plant factor will carry out good place construction plan and Long-term Electric Power Development Plan It can find that Wind Energy will be very useful when comparison between the value of data for long-term operating of wind power and the value of data for real wind

전이성 골종양 환자 1례에 대한 증례보고

이정현,정학수,이은용,김형준 세명대학교 한의학연구소 2001 韓醫學硏究所 論文集 Vol.3 No.-

By process of treatment for a case which diagnosed as metastatic bone tumor and admitted from the 7th March, 2000 to the 7th April, 2000, the results are as follows. Method & Results : This patient was diagnosed as breast cancer metastasizes to bone, was treated with herb medication, acupuncture, moxibustion and kinesio taping. In treatment, cancer pain in lumbar, leg, shoulder, flank and chest portion of the patient was improving. Specially, by moxibustion therapy at pain points, cancer pain was improved remarkably. Conclusion : I consider that cancer pain diseases can be improved remarkably by Acupuncture, Moxibustion therapy.

Phage Display 기법을 이용한 B형 간염 바이러스 Polymerase의 Rnase H 활성을 억제하는 인간 단세포군 항체의개발

이성락,송은경,정영주,이영이,김익중,최인학,박세광 Official Journal of the Korean society for immunol 2004 Immune Network Vol.4 No.1

가격할인 상황에서 단수가격의 효과

이은평, 박유식, 이종학 충북대학교 국가미래기술경영연구소 2018 기술경영 Vol.3 No.4

이 연구는 가격할인 상황에서 단수가격의 효과를 연구하였다. 구체적으로 할인 전 가격(정규가격)과 할인가격이 라운드가격(Round pricing, R) 또는 단수가격(Odd pricing, O)으로 책정하였을 때 소비자들의 반응차이를 연구하는 것을 목적으로 하였 다. 단수가격전략과 준거가격광고에 관한 연구를 바탕으로 가설을 설정하고 실증분석 을 통해 검증하였다. 실증연구의 결과는 다음과 같다. 첫째, 할인지각에 대한 분석결과 정규가격이 라운드가격(R)이고 할인가격이 단수가격 (O)일 때 가장 많이 할인된 것으로 지각하였다. 둘째, 소비자들은 정규가격과 할인가 격이 모두 라운드가격(RR)일때 단수가격(OO)의 가격전략보다 유의하게 품질을 높게 평가하였다. 셋째, 구매의도에 대한 분석결과 ‘RR’, ‘RO’, ‘OR’에서는 유의적인 차이가 없었으나, 세 유형 모두 ‘OO’ 보다 유의적으로 높았다. 이 연구의 결과 정규가격과 할 인가격을 모두 표시하는 가격할인에서 정규가격과 할인가격을 모두 단수가격으로 표 시하는 ‘OO’전략은 할인지각, 품질지각, 구매의도 모두에 도움이 되지 않는다는 것이 다.

단백질 상호작용 추출을 위한 텍스트 마이닝 기법

이현철,여은주,조완섭,김학용,유재수 충북대학교 컴퓨터정보통신 연구소 2004 컴퓨터정보통신연구 Vol.12 No.1

단백질 간의 상호작용에 대한 연구는 생물학적 프로세스를 이해하기 위해 중요한 부분이다. 이 논문의 목적은 생물학적 내용을 담고 있는 연구논문으로부터 단백질간의 상호작용을 추출하는 확장성을 가진 텍스트 마이닝 기법을 제안하는데 있다. 단백질 간의 상호작용에 대한 정보는 주로 생명과학 관련 연구논문에 존재하지만 컴퓨터로 자동으로 처리하여 상호작용에 관한 정보를 추출할 수 있기 위해서는 텍스트 마이닝 기술이 적용되어야 한다. 바이오 텍스트 마이닝에서 대두되고 있는 중요한 쟁점은 대용량의 연구논문에서 필요한 정보를 어떻게 효율적으로 정확하게 추출할 것인가에 대한 내용이다. 또한, 관심이 있는 단백질의 종류나 상호작용에 대한 관련성을 나타내는 문장내 패턴의 다양성을 수용하기 위하여 시스템의 확장성을 높이는 것도 소프트웨어 공학적인 측면에서 중요한 이슈이다. The research for protein-protein interactions remains an important part to understand the biological process. This paper suggests a text mining technique with extensibility, which extracts the protein-protein interaction from the biological research papers. There is much information related to the protein-protein interactions in plentiful biological research papers, we need the text-mining technique to extract the protein-protein interaction information automatically and rapidly. The main issue in bio-textming lays how to extract the necessary information efficiently and correctly. In addition, it is a significant issue to accommodate the concerned kinds of proteins and the diversity patterns in sentences with the relevance about protein-protein interactions in order to increase system extendibility in aspect of software engineering.

3차원 적층패키지의 Cu-Cu 접합부의 정량적 접합강도 평가 및 향상에 관한 연구

장은정,김재원,Kim, Bioh,Thorsten Matthias,현승민,이학주,박영배 한국공작기계학회 2009 한국공작기계학회 춘계학술대회논문집 Vol.2009 No.-

The quantitative interfacial adhesion energy of Cu-Cu direct thermo-compression specimen with bonding temperature and wet pre-treatment was measured by using 4 point bending test for 3-D IC integration. The evaluated interfacial adhesion energy was 2.79±0.82, 3.46±0.87, 4.93±0.2 J/㎡ bonding temperature 300, 350, 400℃ and 0.29, 1.28, 1.64, 1.17 and 0.43 J/㎡ acetic acid pre-treatment at 35℃ for 0, 1, 5, 10, and 15 min. From the result, 5 min treated Cu to Cu thermo-compression bonding has the highest interfacial adhesion energy at 350℃.