만성 신부전 환자에서 혈액투석에 의한 Isoniazid의 제거

신재국,차인준,장인진,신상구,김윤구,한진석,김성권 大韓臨床藥理學會 1994 臨床藥理學會誌 Vol.2 No.2

란탄족 이미도 화합물의 합성

김재윤,한원석,이순원 성균관대학교 기초과학연구소 1995 論文集 Vol.46 No.2

Reactions of SmCl_3 and YbCl_3 with LiNHAr (Ar = 2,6-diisopropylphenyl) in dimethoxyethane (DME) or tetrahydrofuran (THF) produced (ArNH)(DME)_xSm=NAr, A, (ArNH)(THF)_xSm=NHAr, ((Me_3Si)_2N)(THF)_xYb=NAr, C, respectively. These complexes were characterized by ^1H-NMR and FTIR spectroscopy.

자궁근종에서 Phospholipase C 동종효소들의 발현에 관한 연구

윤혜원,류임주,김창미,심재철,서영석 대한해부학회 1995 Anatomy & Cell Biology Vol.28 No.4

학급보조 자원봉사활동을 위한 사전교육프로그램의 평가 : 사전교육 프로그램에 참여한 어머니들을 중심으로

박화윤,최재숙 한국영유아보육학회 2003 한국영유아보육학 Vol.0 No.35

This study was to examine the mother's recognition to the preparatory education for the volunteer activities as a kindergarten class-assistance. The subjects were 186 mothers who participated in the preparatory education. Data collected using questionaires were analyzed by the statistical methods of frequencies, percentages, a Chi-Square test with SPSS program. Results showed as follows : 1) Most mothers were satisfied with the preparatory education. 2) They liked the lecture among teaching methods and they thought that 10 hours of 2 days and 20 hours of 3 days were proper to the length of education. 3) Their best subject was the play instruction for children and anybody didn't respond to like the subject of the evaluation among all subjects. 4) They recognized that reeducation was important and that it need to do one time within 6 months after participating the preparatory education. 5) They wanted to open this preparatory education to all mothers and to use various audio visual electric medias.

降水物 tritium濃度의 年中變化

蔡貞淑,尹柱庸,田載植 충남대학교 자연과학연구소 1983 忠南科學硏究誌 Vol.10 No.1

A series of measurements of tritium concentration in precipitation has been carried out at the College of Sciences, Chungnam National University for a period of one year from March 1982 to February 1983. Samples were taken from every precipitation and processed through electrolytic enrichment for liquid scintillation counting of tritium activity. Results are summarized in a table and figure which shows a rough periodicity in the annual variation of tritium concentration with a maximum monthly mean of 1318±197 TR in April 1982 and a minimum of 220±37 TR in July of the same year.

수증기 개질반응용 니켈촉매에 첨가된 리튬의 효과

최재석,윤정숙,임태훈,홍성안,이호인 한국공업화학회 2005 응용화학 Vol.9 No.1

In the direct internal reforming type molten carbonate fuel cell, alkali carbonates used as electrolyte in the cell are transported to reforming catalyst of which activity drastically decreases. In our previous work, the deactivation of the nickel catalyst was studied with increasing the amount of added lithium. Unexpectedly, the increase of activity was observed with a small amount of lithium less than 1wt%. The results of TPR, XRD and chemisorption showed no significant difference between the fresh catalyst and the Li-added one, implying that lithium did not cause the change of morphological property of the supported nickel. To elucidate the effect of lithium the methanation of CO was applied to the catalysts, which was considered as the reverse reaction of the key elementary step of methane steam reforming. It can be seen by an online mass spectrometer that the small injection of CO/H₂ mixture into the Li-added catalyst reactor at 650 ℃ showed the longer tail of produced methane than into the fresh one. The delay should be originated from the effect of lithium, which determined the overall rate on the Li-added catalyst.

능이버섯 가공품이 스테이크용 우육의 품질에 미치는 영향

배윤환,이종숙,이경아,윤재돈,강동헌,이재성 동아시아식생활학회 2002 東아시아食生活學會誌 Vol.12 No.4

The possibility of using the dried powder form of Sarcodon aspratus fruitbody (a kind of mushrooms) as a meat tenderizer was explored in this study. The freeze-dried powder had higher protease activity compared to the hot air dried powder of S. aspratus. The powder kept higher activity when preserved at -20℃ than at ambient temperature. The hardness of the meat decreased and the cooking loss increased more rapidly when the meat was treated with the mushroom powder at ambient temperature than at -41℃. In terms of sensory evaluation, 0.1% of the powder based on the meat and 3 hours of treatment at 4℃ gave the highest acceptability score. In the comparison test, the meat was more acceptable when treated with the mushroom powder than with the imported commercial tenderizer. This led to the conclusion that it is quite feasible to develop a natural meat tenderizer using the Sarcodon aspratus fruitbody.

뚜렷한 입체 선택성을 갖는 알릴 디올의 고리 카보네이트와 아세토니드의 Wacker 산화 반응 연구

강석구,정경윤,정재욱,남궁은영,김태현 성균관대학교 기초과학연구소 1995 論文集 Vol.46 No.1

Palldium(Ⅱ) 촉매 하에서의 말단 알릴 디올의 고리 카보네이트와 아세토니드의 산화반응은 anti-Markovnikov hydation에 의해 알데히드 또는 α,β-불포화 알데히드 만이 생성되었다. 치환된 알릴 디올의 분자내 이중 결합의 반응으로는 (E)-알릴 디올의 경우에 β-케토 생성물을, 반면에 (Z)-알릴디올의 경우엔 α-케토 생성물을 얻을 수 있었다. 치환된 알릴 디올의 고리 카보네이트와 아세토니드에서는 각각 β-케토 화합물과 α,β-케토 화합물 들이 생성되었다. Palladium(Ⅱ)-Catalyzed oxidation of acetonides or cyclic carbonates of terminal allylic diols afforded aldehydes or α,β-unsaturated aldehydes as the sole products, resulting of anti-Markovnikov hydation. For the internal olefins of the substituted allylic diols, (E)-allylic diol provied β-keto-product, whereas (Z)-allylic diol affored α-keto-product. The acetonides and cyclic carbonates of the substituted allylic diols yielded β-keto-products and α,β-unsaturated ketones, respectively.

임계값 붓스트랩을 사용한 입력 시나리오의 생성

김윤배,김재범,고종석 한국경영과학회 2003 한국경영과학회 학술대회논문집 Vol.- No.1

시뮬레이션 상의 입력모델에 대한 기존의 연구는 과거의 자료를 바탕으로 선형의 모수적인(parametric) 모형을 개발하는데 초점을 두고 있다. 그러나 이 경우에는 입력이 매우 복잡한 형태를 가지면 모수적인 모형을 찾는 것이 불가능해지므로 비모수적인(non-parametric) 접근 방법이 절실한 실정이다. 예로 인터넷 트래픽 모델의 시뮬레이션 수행시 입력으로 제공되는 단위 시간당 요구되는 웹 페이지의 수 같은 경우 데이터들 간에 종속관계가 매우 심하고 복잡하여 모수적 모형을 세우는데 어려움이 있다. 이러한 시스템들을 시뮬레이션 방법으로 분석하고자 할 때, 기존의 trace-driven 시뮬레이션 방법이나 모수적 모형을 찾아 다수의 사실적인 시뮬레이션 입력 자료를 확보하는 것은 현실적으로 어려움이 있다. 따라서, 비모수적인 방법으로 다수의 사실적인 시뮬레이션 입력 자료를 생성하는 것이 필요하다. 이러한 비모수적인 방법에 대한 평가기준 설정은 시뮬레이션 상의 입력 모델에 대한 타당성을 제시한다는 점에서 또한 매우 중요하다. 본 논문에서는 붓트스트랩의 방법중의 하나인 임계값 붓트스트랩을 이용하여 시뮬레이션 입력 자료 생성 방법을 개발하였고 Turing test를 통해 붓스트랩으로 생성 한 입력 시나리오를 검증하였다.

윈드서핑선수 체력 트레이닝을 위한 프로그램개발에 관한 연구

이석인,주희철,손재윤 중앙대학교 스포츠과학연구소 2002 體育硏究 Vol.- No.16

The purpose of this research is to investigate training methods and physiological responses according to the indensity through analyzing researches in this area and develope program models for physical training in order to find an effective training method for windsurfing players. 1. Training for Muscular Strength Muscular strength is an important component for windsurfing player to move fast with less fatigue. Weight training is commely used to imporve muscular strength. It is proper for beginners to use loads in the range of 60% to 70% of one repetition maximum, and for athletes in the range of 80% to 100% of 1RM. It is required to do 1 rep at 12-15 RM for 1-2 seconds, and 1 rep at 5-10RM for 2-3 seconds. Moreover, it is adequate for beginners to do 3-5 sets, and for athletes to do 5-7 sets. Handling heavy weights in the pursuit of strength will require a recovery of 3-5 minutes between sets. As 48 hours should elapse between sessions, it is necessary to exercise at least three times a week. Finally, it is important to increase repetitions before increasing the load. The load should be increased by 3-5% of one repetiton maximum after 4 weeks. 2. Training for Muscular Endurance When these ways of training are conducted in good order, it has a good effect on windsurfing players: Chin→up→Hanging-out →Bar →Climbing the rope →Jumping in a crouch →Hanging the rope →Jump over the bench →lifting a sandbag on the top side of the foot →Throwing the ball in the position of lying down 3. Whole body endurance Whole body endurance is usually regarded as cardiovascular endurance or stamina. To improve the whole body endurance, players are trained by the methods such as long-distance run, Country cross, rope jumping, and swimming. Long-distance running is an essential item for windsurfing players to build up their physical strength, especially cardiovascular function. It is effective to run 4-5km at 150-170 heart rates. For rope jumping, exercise 3-5 rounds and do 3 minutes for one round. The significant components of physical strength for windsurfing players are muscular strength, muscular endurance, and whole body strength. The training for these factors would have an important influence on windsurfing players.