Protective Effects of N-acetylcystenine and Selenium against Doxorubicin Toxicity in Rats

Yeo-sung Yoon,Sun-don Kim,Min-hye Lee,Heung-shik S.Lee,In-se Lee,Je-kyung Sung,Eun-sung Park 대한수의학회 2003 Journal of Veterinary Science Vol.4 No.2

Effects of N-acetylcysteine and Selenium against Doxorubicin Toxicity in RatsEun-sung Park, Sun-don Kim1, Min-hye Lee, Heung-shik S. Lee, In-se Lee, Je-kyung Sung and Yeo-sung Yoon*

실리카흄을 흔입한 고강도 콘크리트 개발

홍창우,김태경,김경진,김성환,김남윤,심도식,이정호,윤청호,백민경,원치문,박제선,이주형,정경일 강원대학교 석재복합신소재제품연구센터 1996 석재연 논문집 Vol.1 No.-

콘크리트 구조물이 대형화됨에 따라 설계단면이 증대되어 상대적으로 많은 경제적 손실을 부담하게 된다. 따라서 단면을 감소시키면서도 소요의 하중에 안전한 구조물을 건설하기 위해서는 우선적으로 구조물 건설에 기초가 되는 고품질, 고내구성의 고강도 콘크리트 개발이 절실히 요구된다 본 연구에서는 일정 시멘트비 및 혼화재 비율하에서 소요의 워커빌리티가 확보되는 고강도 콘크리트를 시간과 온도의 변화에 따라 증기 양생하여, 압축, 인장, 휨강도 뿐만 아니라 파괴특성을 실험적으로 연구하였다. 시료 제작시 시멘트 입자 사이의 공극 및 불연속 영역을 충전하여 고밀도화하기 위한 콘크리트용 혼화재로 시멘트 비표면적이 상당히 작은 초미립 분말인 실리카흄을 이용하였다. 또한 AE감수제 및 고성능 유동화제를 사용하여 혼화재의 첨가에 의하여 발생될 수 있는 워커빌리티의 감소를 방지하였다. 실험결과에 의하면 일정 양생 지속 시간하에서 온도의 증가에 따라 콘크리트의 압축, 인장 및 휨강도가 전반적으로 증가하였다. 동일하게 일정 온도하에서 양생 지속시간이 커짐에 따라 강도들이 증가됨을 알 수 있었다. 따라서 상대적으로 높은 온도와 긴 지속 양생 조건하에서 파괴에 대한 저항력이 크게 나타났다. The compressible, tensible, and flexibleresistance of the high strength concrete is analyzed by the experimentation in the present study. For the test, we cure several samples with the silica fume as a mixture being become dense the spaces between the particle of cement under the variation of both the temperature and the curing-interval. Then, the superplasticizer and the ezcon are also used to satisfy the required workability for construction. The compressible, tensible, and flexible resistances to a stress are increased as increasing the temperature and the time interval for the curing. Therefore it is concluded that the overal fractural and mechanical properties is improved by mixing the silica fume into the cement.

식품 기준·규격의 합리적 관리 ·운영에 관한 연구(Ⅰ) : 두부,식용유지, 전분의 분말상 원료에 관하여 Powdered marerials of Tofu, Edible oil, Starch

김희연,홍진환,박혜경,한상배,박종석,이은주,이정성,송경희,최은희,최영준,소경아,성영제,이주엽 식품의약품안전청 2000 식품의약품안전청 연보 Vol.4 No.-

본 연구는 분말상 원료(전분, 대두분)의 저장유통시 품질변화를 건전성과 안전성 측면에서 검토하여 식품의 기준 ·규격 설정f.」 합지적으로 반영하고자 하였다. 전분과 패두분의 이물을 검사하고, 2종 대두분(중국산, 미국산)을 ?0일간 IS'c와 30t에 저장하면서 성상, 수분, 산가, 과산화물가, 지방산 조성,아플라톡신 BB의 생성여부를 분석하였다. 중국산 대두분 30'』 저장군에서 50일 이후 곰팡이가 발생한 것 이외에 모든 시료에서 양호한 성상을 나타내었고, 전분과 대두닥 모든 시료에서 이물은 검출되지 않았다. 산가는 중국산과 미국산 시료간에 편차를 보여 증국산 30"C, 50일 저장시료에서 약 10배끙도 증가하였고, 과산화물가는 저장 90일후 15'E 저장군은 약 2.3배, 30'c 저장군은 3배정도 증가하였다. 대두분의 주요 지방산은 linoleic acidf18. 2), oleic acid(18 : 1), palmitic acid(16 : 0)이었으며, 3개월 저장에 따른 지방산 함량의 변화는 미미하였다. 아플라톡신 B₁은 모든 시료에서 검출되지 않았다. The objective of this study was to investigate auality changes of type raw materials(starch, soy flour) during various storage conditions. Starchflour(source of China, U.S.A) were slfred under two temperature(15'C, 30'c) forSensory evaluation, (o.reign material test, moisture content, acid value, peroxide ualue,composition, aflatorin Bi were analyzed. China soy flour(stor·ed 30'f) was contaminated by fungj on 50 days. Except for soy flour contardnated by fungi, sensory characteristics were not changed and foreign mater;als were notdetected. Acid value of China soy flour(stored at 30'C, 90 days) was about 10 times higherlevel before storage and acid value was more influenced by source(China, USA). Peroxide valuewas in proportion with the storage period slightly. The major fatty acid of soy flour waslinoleic acid(18 . 2), an(3 the change of fatty acid composition was not observed. Aflatoxlrl Blwas not detected.

라오스의 벼 생산 현황과 문제점

이문희,최경진,이정일,정남진,양원하,김제규 한국국제농업개발학회 2001 韓國國際農業開發學會誌 Vol.13 No.4

Rice is the single most important crop in Lao PDR. In the 2000 rice production year, total rice production in the Laos reached 2.2 million tons. This is regarded as sufficient to provide national self-sufficiency. The rice harvested area in 2000 was approximately 719,500ha and represented 80% of cropped land area. Approximately 82% of production was from wet season cropped and 18% was from the irrigated dry season. Grain yield per unit area vary from 1.68 to 4.39 ton/ha in the wet season environment. However, the highest grain yield (4.39 ton/ha) obtained from the dry season irrigated crop. Higher yields and reduced year variation in production can be expected with the further intensification of production systems in the low land environments. However, further imporvements in production will be dependent on higher levels of inputs and further alleviation of some the production constraints.

運動處方의 指標로서의 心拍數에 대한 硏究(1)

李京濟 江原大學校附設體力硏究所 1976 江原大學校附設體育科學硏究所論文集 Vol.- No.1

This is an attempt to clarify the relation between the level of oxygen intake(VO₂) and that of heart rate (H.R.) when maximal oxygen intake takes place, i.e. when exhaustion comes in 5 to 7 minutes' time and thereby to present the data of H.R. for any prescribed exercises. Both VO₂and H.R. are used as criteria for prescribed exercises. However, the latter is more practicable because anyone can measure it with ease at any place. My subject of experiment were two long-distance runners and three untrained as shown in the Table I. H.R. VO₂, and ventilation were measured during their running. The results are as follows : 1. The correlation between H.R. and VO₂for every minute of running when described in terms of the percentage of the maximum value of each is straight and high. 2. The level of H.R. which can substitute for that of VO₂is obtained by this equation: the level of H.R. = 0.382×the level of VO₂+ 60.1 (condition : the level of VO₂≥50)

Methicillin내성 포도 구균의 기타 항균제에 대한 감수성

이경수,이제철,설성용 慶北大學校 醫科大學 1991 慶北醫大誌 Vol.32 No.1

A total of 204 strains of Staphylococcus aueus isolates in 1987, 1988, and 1989 were studied for the frequency of methicillin-resistant S. aureus (MRSA) and antimicrobial susceptibility and also were examined for oxacillin screening tst and change of minimal inhibitory concentration (MIC) of methicillin at the various conditions. When S. aureus were incubated on the agar media supplemented with 4% NaCl at 35℃ for 72 hours, 33(16.2%) of 204 strains were resistant to methicillin. In oxacillin screening test, oxacillin resistance was found in 33 (16.2%) of the 204 strains. Compared to the MIC of methicillin, oxacillin screenigng positive strains were not same strains of methicillin resistant S. aureus. Total frequency of MRSA was 24 (11.8%) of 204 strains. The frequencies of MRSA in 1987, 1988, and 1989 were 12 strains (9%), 11 strains (16.9%), and 1 strain(20%), respectively and MRSA increased yearly. All MRSA had multiple antibiotic resistance from 9 to 15 tested antibiotics and resistance to 12 antibiotics was the most predominant. All MRSA were resistant to kanamycin, gentamicin, penicillin and cefoxitin. More than 75% MRSA were resistant to amikacin, cefotaxime, cephalothin, tetracycline, rifampin and erythromycin. All MRSA were susceptible to minocycline, vancomycin and trimethoprim-sulfamethoxazole. More than 75% MRSA strains were susceptible to norfloxacin, ciprofloxacin and doxycycline.

負荷强度가 動的筋力 Training의 效果에 미치는 特性

李京濟,李喆奎 江原大學校附設體力硏究所 1978 江原大學校附設體育科學硏究所論文集 Vol.- No.3

The results of 12 week training of bench press charged with the 80%, 60%, and 40% of maximal strength as the load intensions respectively was shown as follows: 1. The increase of maximal strength was that the more load intension was charged the stronger the maximal strength became. 2. As to the development of endurance, high strength level of muscle endurance was developed at the high load intension, and low strength level of muscle endurance was developed at the low load intension. 3. The load intension of the training, therefore, should be determined according to the object of the training.

四季統 바이라스에 對한 結球배추의 反應

李昇雨,金炅濟 동국대학교 농림과학연구소 1967 農林科學 論文集 Vol.1 No.-

1. The thirteen different solid-headed type chinese cabbage varieties thatwas produced by three seed's companies is examined into severity of symptoms that inoculated into Streak Mosaic Virus, Radish Vivrus P. Turnip Mosaic Virus T8 and Radish Mosaic Complex. 2. The Uri 50days variety is relatively resistant to Streak Mosaic Virus. 3. The Uri Horticultural No. 1 is relatively resistant to Radish Virus P. 4. The Uri 50 days Variety is relatively resistant to Turnip mosaic Virus T8. 5. The Uri 50 days Variety is relatively resistant to Radich Mosaic Virus Complex. 6. Jungang Owng Kowan is relatively resistant into fields.

비선형 캐리어 제어 부스트 정류기 특성에 관한 연구

이제환,전기영,조정민,한홍일,한경희 明知大學校 産業技術硏究所 2000 産業技術硏究所論文集 Vol.19 No.-

Average-current mode controlled boost rectifier is most universally used at present, While the method gives high power factor, low harmonics distortion, has drawbacks such as 3-feedback loop, complex component, difficulty of control-circuit design, and high cost. Research for improving these problem has been carried out, and Nonlinear Carrier(NLC) Control method is representative. This control method has easy algorithm for control, and its feedback loop and control components are reduced. In this paper, the control method was evaluated by simulation through Matlab/Simulink, and experimented with 550W boost rectifier. As the result, that can get high power factor above 0.95 and low harmonic distortion was confirmed. Also, a good dynamic response on line and load variation was confirmed.

Caffeic Acid의 ONOO^(-) 제거활성

이지영,성도유,노재경,김유정,제정환,김민선,최재수,정해영,이경희 대한암예방학회 2003 Journal of cancer prevention Vol.8 No.3