抗히스타민劑의 吸光度比法에 의한 定量

李允中,李康春,李東宣,李振九 成均館大學校 1980 論文集 Vol.28 No.-

The absorbance ratio method was applied to the quantitative determination of antihistamines, such as chlorpheniramine maleate(CPM), carbinoxamine maleate(CBM) and diphenhydramine hydrochloride. The influences of indicator and solvent concentration on the precision and accutacy of determination were investigated. And it was found that the effects of temperature and wavelength was negligible in case of averaging conditions. The standard deviations for three antihistamines tested were within 0.13%. As the results, the determination of antihistamines could be carried out easily, rapidly and accurately by the absorbance ratio method.

가토 외고정 모델을 이용한 치밀체형 세라믹스의 골결합능 평가

이재협,이동호,이재학,공현식,안영준,류현승,서준혁,홍국선,김환,장봉순,이춘기 대한정형외과연구학회 2003 대한정형외과연구학회지 Vol.6 No.2

The Knight’s Tale and The Miller’s Tale as One Tale

Lee,Dong-Choon 신영어영문학회 2011 신영어영문학 Vol.49 No.-

Lee, Dong-Choon. The Knight’s Tale and The Miller’s Tale as One Tale. The New Studies of English Language & Literature 49 (2011): 103-131. The first two tales-the Knight’s Tale and the Miller’s Tale-of the Canterbury Tales are the representative examples that reflect not only the narrative technique of the “juxtaposition of opposites,” but also Chaucer’s narrative tendencies. The special poetic achievements (and limitations) of each are seen most clearly when the two tales are read together, one in the light of the other, as their juxtaposition invites. The Knight’s Tale and the Miller’s Tale, when read together, are the representative examples which tell what Chaucer attempts to show through his narrative technique of the juxtaposition of opposites and what attitude he expects from a reader. Chaucer does not mechanically indoctrinate an unique view of the world to the readers. He, avoiding his authorial stance on a certain limited view embodied in each tale, forces the specific views of the narrative onto the reader. It is through the juxtaposition between the completely different two tales in such things as tale-teller, plot, character, language, and the narrative voice that Chaucer creates the multiplicity of voice and the plurality of theme, and he trains a reader to grope for meaning from various sides. (Daegu University)

전오존에 의한 상수처리

이영식,손진언,류동춘 동아대학교 환경문제연구소 1996 硏究報告 Vol.19 No.1

1. The maximum Chl.-a removal efficiency has shown 80.7% by preozonation and the suspended solid also removed, furthermore represented high relationship between Chl.-a and suspended solid. 2. For Chl.-a removal, increasing contact time was more effective method, since the removal efficiency of Chl.-a was decreased per ozone dosage with increasing ozone dosage. 3. The result of proceeding jar-test, the optimum removal was shown at 3 minute contact tie and 3 ㎎/l ozone dosage. 4. Adding coagulant more than optimum dosage represented high residual turbidity and would be negative effect of ozone-coagulation-sedimentation press. 5. The decreasing of zeta potential was more than of residual turbidity after preozonation treatment which was represented that preozonation will be positive effect to the later coagulation and flocculation processes.

삼중요관 제3형 1례

이성준,최호철,류동수,박철희,김거환 啓明大學校 醫科大學 1993 계명의대학술지 Vol.12 No.3

Ureteral triplication is an extremely rare congenital anomaly of the urinary tract, which was first described in 1870 by Wrany. A review of the literature revealed only 92 cases published to date 1992. Herein we report a case of ureteral triplication, type Ⅲ in 54 years old woman. She was admitted to the hospital because of incidentally detected left hydroureteronephrosis on transabdominal ultrasonogram which was performed due to vague epigastric discomfort for 2 years. After radiologic study, under the impression of left incomplete duplicating system with nonfunctioning obstructive megaureter, left nephroureterectomy was performed.

전동기 구동을 위한 PI제어기의 Anti-Windup

이지명,이기도,이동춘 嶺南大學校 工業技術硏究所 1997 工業技術硏究所論文集 Vol.25 No.1

For electric machine drive systems, the conventional PI controller usually suffers a windup in transients since the actuator is saturated. To eliminate the windup, anti-windup strategies are proposed and analyzed. Anti-Windup of both speed and current controllers for induction motor drives is considered. The validity of the anti-windup strategy applied to induction motor drives is confirmed by various simulation results.

혈액투석 환자에서 대퇴신경범증으로 발현된 장골근 및 요근 농양 1예

이준상,강동구,신상열,윤재호,조영일,고성은,유영범,전혜정,진춘조,송종오 대한신장학회 2004 대한신장학회잡지 Vol.23 No.1

Field Data를 利用한 製品의 信賴性에 關한 硏究

李東春 慶北工業專門大學 1977 論文集 Vol.14 No.-

Product Reliablity is divided in next 4 phases; 1) Reliability in design phase 2) Reliability in manufacturing phase 3) Reliability in selling phase 4) Reliability in use phase It is desired for user to maintain high relianbility product in use phase. In order to manifest the reliability in use phase, got the field data by enquete. Analysed results on TV-produced by ×Co. are described in main text. But there mignt be some errors on the reliability parameters because enquete suruey itself has some uncertainty. And the analysed results in this paper might be different from the originals of maker's laboratory. It will be due to the factors of user, maintenance, load, and environment. To show the reliability analysis procedure with field data, and to inform useful information for maker is basic purpose of this paper.

사회봉사활동 교육과정 운영 연구

이동규,이영춘,조주연 서울敎育大學校 學生生活硏究所 1998 學生生活硏究 Vol.24 No.-

This study is a base research on which the Seoul National University of Education implements the subject of 'Social Service Activities' as part of the formal curriculum. The purpose of this study was to suggest a systematic program for the curriculum implementation. The major research methods of this study were the analysis of precedent literature regarding Social Service Actities, and the interview method. As the research results, this study presents the discussion products regarding the concept·characteristics·contents of social service activites, the present situation of service activites in Korea and other countries, the preparation/attitude of university students who are going to practise those activites. As far as the concrete curriculum implementation is concerned, this study suggests twofold specific ideas. First, this study presents ideas on the curriculum form such as regarding in which semeter the subject is open, how students apply for the subjects, how to designate advising professors, what is the role of the professors, how to evaluate the activity results of students, and how to select the relevant institutions in which the activities are carried out. Second, this study suggests to construct an curriculum implementation committee and to make a implementaion guide. The committee is supposed to carry out manage/control the social service curriculum, and consider important matters on the curriculum impletation.

Field data의 異狀値識別 및 그 修正에 關한 硏究

李東春 慶北工業專門大學 1979 論文集 Vol.16 No.-

It is important to get suitable data from population in order to analyze and evaluate the characteristics of quality, and next, to discriminate the abnormal data preceding analysis and evaluation, it any. Particularly, there could be much more the abnormals in field data than life test record. And this paper presents a discrimination method of abnormal data by the characteristics of star-shaped function and amendent method by P.A.V. algorithm for isotonic regression.