지지막을 이용하는 액막 추출기 내에서 아연 이온의 이동

주창식,이석희,이민규,홍성수,하홍두,정석기 한국환경과학회 2000 한국환경과학회지 Vol.9 No.2

For the purpose of development of a liquid membrane permeator which separates metal ions from aqueous solutions continuously and effectively, a continuous membrane permeator with the membrane solution trapped between extraction and stripping phases by two micro-porous hydrophilic films was manufactured. Experimental researches on the separation of zinc ion from aqueous solutions were performed in the liquid membrane permeator with 30 vol % D_2EHPA solution in kerosine as liquid membrane. As results, the liquid membrane permeator separates zinc ion from aqueous solutions continuously and effectively in the wide range of operating conditions. A simple mass transfer rate model using equilibrium constant of the extraction reaction for the system used were proposed, and the model was compared with experimental results of separation of zinc ion in the permeator. And the effects of operating factors, such as space time, pH of extraction solution, extraction temperature, on the separation rate of zinc ion in the permeator were experimentally examined.

초등학교 아동의 방과후 생활실태

석주영,안옥희,박인전 영남대학교 지역발전연구소 1998 새마을지역개발연구 Vol.22 No.-

This study aimed to investigate the actual conditions of after-school life, and to explore the actual conditions of, and perceptions of, children's playing time. The subjects for this study were 866 children of the 2nd, 4th, and 6th grades living in the Taegu Metropolitan Area. The data was analyzed by the four different methods, which were frequency, percentile, chi-square test, and one-way ANOVA using the 7.5 version of SPSSWIN program. The major results of this study were a s follows : First, children's after-school playtime decreased as their grades increased. Second, the percentage of children who perceive their after school playing time as being insufficient was the highest. The main reason children gave for having a lack of after school playing time was that they go to the private institutes.

남서울대학교 교직교육과정 개편 방안

허영주,김원곤,전창석,이석열 남서울대학교 2009 남서울대학교 논문집 Vol.15 No.1

The purpose of this study is to search for method that Teacher's curriculum of Namseoul University is been active. For success of this purpose, we analyze strengthening on Teacher's education of Ministry of Education & Science, and analyze Kindergarten and Middle & High School's curriculum. And we examined the present managerial conditionand the problem of Teacher's curriculum in this university. Also analyze curriculum, support system and existing facilities of other universities.According of this analysis, for acting of Teacher's curriculum through the enlargement of advance into the teaching profession, we found alternate Teacher's curriculum. Key Words : alternate, Teacher's curriculum, teaching profession, survey

필리핀의 제 2 차 금융위기설과 경제불안 요인

주석배,심의섭 명지대학교 리서치아카데미 2002 리서치 아카데미 논총 Vol.5 No.-

대학 강의평가의 문제점과 개선방안

이석열,허영주 남서울대학교 2010 남서울대학교 논문집 Vol.16 No.1-2

Many universities have adopted the use of student ratings of teaching as the most authentic assessment tools for improving the quality of higher education. This article explores the significance and problems of students' evaluations of teaching effectiveness based on overview of issues in this area and searches improvement points. First of all, the significance of evaluations of teaching effectiveness are identified. The quality of teaching is not an objective entity which can be judged solely by the teacher. Rather, teaching is an interactive process between students and the teacher. Accordingly, students' ratings of teaching have full significance of evaluations of teaching effectiveness. In addition to that, several problems and limitations of students' ratings are criticized. Although it have some validity and usefulness of students' evaluations of teaching quality, it also have the potential bias and harmful side effects. Finally, it searches that special suggestion for improving students' evaluation and for it using to enhance the effectiveness of education, not to rank the courses and evaluate professors' achievement. Key Words : student's evaluations of university teaching, teaching effectiveness, significance and problems, improvement points

교직이수 학생의 교직과정에 대한 만족도 및 요구 분석

허영주,이석열 남서울대학교 2009 남서울대학교 논문집 Vol.15 No.1

The purpose of this study is to get implications and basic data for the development of Teacher's curriculum and for development of effective education system of teachers. For success of this purpose, structured questionnaire were administered and data analyzed to 139 students in Teacher Education of Namseoul University. The questionnaire's contents is "teacher education's process, teacher's curriculum, teaching practice, professor's teaching ability, equipment of a lecture room" and comprised of 32 questions.According to this study, suggest that fully plan means of maximization of teaching practice in teacher training curriculum, open new and variable subjects, and provide advanced instruction in each subjects, provide rich variety of information about teacher training and teacher's test. Key Words : Teacher's curriculum, questionnaire, teaching practic

비시즌 프로籠球選手의 體脂肪率이 脚筋파워와 心肺持久力에 미치는 影響

문주열,조영석 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.6

This study is designed to make a comparative analysis of non-seasonal professional basketball players' rates of body fats on their basic physical strength and uniform-velocity power and to present information necessary for enhancing the subjects' willingness, motivation, self-control and maturity and cultivating professional attitudes. With this in mind, the researcher worked with a total of 26 non-seasonal professional basketball players to evaluate their rates of body fat, VO₂max, uniform velocity measurement(knee) 60˚/sec, sergent jumps and side steps. Therefore I came to the following conclusions on the basis of the statistic confirmation of frequency analysis of the results by variable. ① A group of subjects with less than 15 percent of body fat turned out to have higher VO₂max than a group of subjects with more than 15 percent of body fat(p<0.05). ② There was no significant difference between the two groups in terms of uniform velocity power measurement. ③ The former turned out to have high sergent jumps than the latter(p<0.05). ④ There was no significant difference between the two groups in terms of side steps. The survey shows that the difference in the rates of the subjects turned out to have an influence on power and cardiovascular endurance. The bottom line is that the researcher should take into consideration individual diversity and methodological errors instead of restricting the range of body fat rates. After keeping one's body condition in the best condition with one's body weight determined, one should be cautious about an increase in body fat and control the consumption and intake of energy all the time. Professional players, in particular, should pay special attention to an increase or a decrease in their body fat so as to prevent their injuries and show effective athletic performance. This will enable the players to exercise their best performance capacity in an appropriate condition of physical structure involving skeletons, muscles and body fat required in sports. Therefore the researcher thinks that a rate of body fat has a certain influence on professional basketball players' best performance and long career.

벼 상온 저장 시기별 쌀 품질 변화

권석주,송영은,권영립,이덕렬,조승현,최동철 원광대학교 2005 論文集 Vol.35 No.-

Increasing concern about a rice quality, it is considered postharvest technology as well as cultivation management as an important factor. Therefore it is necessary to find optimal drying, storage method that did not affected a rice quality. In order to find the optimum storage period of rice, the rice quality was investigated during storage period. The temperature and humidity of storage bin were greatly changed but those of rice were a little do. The germination rate was slowly decreased as the storage period is long. The content of moisture was affected by a room temperature, it was increased at stored rice in rainy season(10-Jul~20-Jul). As storage period is long, the content of amylose, fatty acidity were a just Little changed but did not showed a constant tendency to it. The content of protein was increased and mechanic palatability value was decreased during storage period. The chromaticity of milled rice showed a range of lightness(L); 75.15~71.75, redness(a); 0.21~0.91, yellowness(b); 16.78~19.28 during storage period.

노인의 Helicobacter pylori 재균율

박주상,홍원선,이영수,이은주,명승재,정훈용,양석균,김진호,민영일 대한노인병학회 2000 Annals of geriatric medicine and research Vol.4 No.3

호흡기 감염에서 Sparfloxacin 의 임상적 유용성에 대한 Enoxacin과의 비교 검토

김주옥,김선영,김관형,서지원,박석영,이종진,박성학 대한감염학회 1995 감염 Vol.27 No.4

목적:폐렴, 기관지염, 만성기관지염에서 fluoroquinolone제제로서 항균력이 강하고, 혈중 반감기가 길고, 객담과 조직내 농도가 높은 sparfloxacin의 안전성과 효과를 enoxacin과 비교하기 위해 본 연구를 시행 하였다. 방법:1994년 10월부터 1995년 4월까지 충남대 부속병원과 대전 성모병원에 내원한 폐렴, 급성기관지염, 만성기관지염이 급성으로 악화된 환자 63명을 대조군(32명)(enoxacin 100 mg 1일 3회 경구투여), 실험군(31명)(sparfloxacin 200mg 1일 1회 경구투여)으로 나누어 임상증상, 세균학적 객담 검사, 혈액검사, 실험실내 항균력검사로 그 치료율 및 안전성을 비교하였다. 결과: 1) 임상종합 평가, 세균학적 균소실, 안전성, 유용성에서 두군간에 의미 있는 차이는 없었다. 2) 시험관내 항균력검사상 MIC가 실험군이 대조군보다 현저하게 낮았다.(p<0.05). 3) 경미한 두통, 식욕감퇴, 상복부 불쾌감, 설사등이 대조군 9예, 실험군 7예에서 발생하였고, 검사실 소견상 SGOT 혹은 SGPT 의 일시적 경미한 상승이 대조군 2명, 실험군 3명에서, 혈중 creatinine 상승이 실험군 2명에서 있었으나 경미하였다. 결론:이상의 결과로 sparfloxacin은 폐렴, 급성기관지염, 만성기관지염의 악화에서 하루 한번 투여로 enoxacin 하루 3번 투여와 유사하게 효과적이고 안전하며, 시험관내 항균력이 enoxacin보다 월등히 우수하여 임상에서도 유용하게 사용될수 있을것으로 생각된다. Background: Sparfloxacin, a new oral quinolone, has a broad spectrum, potent antimicrobial activity, prolonged half life, high concentration in sputum. The clinical efficacy and safety of sparfloxacin have been reported by some previous clinical studies performed in Japan. The objectives of this study were to evaluate the clinical and antimicrobial efficacy of this drug in respiratory tract infections compared to those of enoxacin. Methods:We performed an open controlled, randomized study in 63 patients with acute bronchitis, pneumonia, and exacerbation of chronic bronchitis at Chung Nam University hospital and Dae Jeon St. Mary's hospital from October, 1994 to April, 1995. In the control group(n=32), 100 mg enoxacin was administered orally 3 times a day and in the test group(n=31), 200 mg sparfloxacin once a day. Results: The results were as follows; 1) There were no significant differences between the two groups in clinical efficacy, bacteriological finding, and usefulness. 2) Means and SD of MICs were 0.44±0.89 ㎍/ml in the control group, 0.13±0.24 ㎍/ml in the test group. There was a significant difference in MICs between the two groups(p<0.05). 3) Headache, epigastric discomfort, and loss of appetite were observed in 7 cases of the control group and in 9 cases of the test group, and transient elevations of hepatic enzyme in 2 cases of the control group, and in 3 cases of the test group. There was mild elevation of serum creatinine in 2 cases of the test group. Those laboratory abnormalities by therapy might be associated with their underlying diseases. There were no significant adverse effects caused by the drugs Conclusion:In conclusion, sparfloxacin of 200 mg once a day was as effective and well tolerated as enoxacin of 100 mg three times per day in the treatment of respiratory tract infections. Sparfloxacin is more potent antibiotics because MICs of sparfloxacin were very lower than those of enoxacin.