林土의 有機物의 分解速度와 無機養料의 垂直分布에 關한 考察

金遵敏,張楠基,鄭玩鎬 서울대학교 교육대학원 학술연구회 1966 論文集 - 서울대학교 교육대학원 Vol.3 No.-

Kim Choon Min, Chang Nam Kee and Chung Whan Ho: Decomposition rate of plant residue and the vertical distibution of mineral nutrients in the woodland soil. The relationship between decomposition rate of litter and the amount of mineral nutrients dispersed to the soil horizons were studied on the oak and pine forest stand. The results are as follows: 1. Decomposition rate of litter was highest in the F horizon of the oak stand, however in the pine stand it was highest in H horizon. 2. The correlation coefficients between decomposition rate and humus, organic carbon, moisture content, calcium, phosphorus, and nitrogen in the pine stand are; 0.90, 0.98, 0.76, 0.98, and 0.88, in oak stand; 0.97, 0.93, 0.92, 0.97, 0.74 and 0.73. 3. Factors which affect the decomposition rate of litter are humus, organic carbon, moisture content, calcium, phosphorus and nitrogen. 4. Among the variables, PH, moisture content and phosphorus under the oak and pine forest showed significant differences in each horizon. 5. C/N ratio of pine stands is higher than that of oak stands studied. 6. The vertical distribution of mineral nutrients is highly related with the amount of humus accumulated on top soil.

매체의 종류와 내용에 따른 인지적 특성연구 : 뇌파(Electroencephalogram;EEG) 분석을 중심으로

전환성 청주대학교사회과학연구소 2006 한국사회과학연구 Vol.28 No.1

본 연구의 목적은 미디어 인식론적 입장에서 매체별(TV, Radio, 신문, 모니터) 및 내용별 자극에 따른 뇌의 반응 특성에 어떠한 차이가 있는지를 알아보려는 것이다. 뇌 반응(Brain Activity Responses) 특성은 (주)락싸가 개발한 뇌파검사기(모델명: QEEG-LEX3208)를 사용, 대학생 34명(남: 17, 여: 17)을 대상으로 8개의 측정부위(좌우 전전두엽-FP1, FP2; 좌우 전두엽-F3, F4; 좌우 측두엽-T3, T4; 좌우 두정엽-P3, P4)에 전극을 부착하여 뇌파(EEG)를 측정하였다. 측정된 뇌파의 상대파워(relative band power)를 계산, 기준뇌파(빈 모니터 화면에 의한 뇌파)를 준거로 뇌 반응 특성을 비교 분석하였다. 최종 분석에는 매체의 경우 22(남: 11, 녀: 11)명, 내용의 경우 24명(남: 11, 여: 13)의 자료가 사용 되었다. 연구결과 실험에 사용된 모든 매체와 내용 자극에 대하여 모든 측정 부위에서 기준뇌파에 비해 자극뇌파의 상대 알파 값이 감소하는 알파파 억제(alpha blocking) 현상이 확인 되었다. 반면 이와는 반대로 매체별 및 내용별 실험 자극물에 대하여 측정 된 거의 모든 부위에서 상대 세타 값이 증가하는 새롭고 특이한 현상도 발견 되었다. 그 이유와 원인을 밝히기 위한 추가적인 분석과 연구가 필요하다. 신문은 전 전두엽을 활성화 시킨 반면 TV는 좌우 전 전두엽을 제외한 나머지 측정 부위를 활성화시키는 등 매체별 뇌 반응 차이가 발견되었다. 자극에 대한 뇌 반응 특성은 내용에 따라서도 달라진다. 선정적 내용과 코미디 내용은 모든 측정부위에서 베타 값이 증가한 반면 스포츠와 폭력적 내용은 좌우 전전두엽에서 감소하는 차이를 보였다. 좌 반구(FP1+F3+T3+P3)와 우 반구(FP2+F4+T4+P4)를 묶어 전체로 비교할 경우 반구별 편측성은 검증되지 않았으나 측정 부위별 좌 우뇌 차이는 부분적으로 검증 되었다. The purpose of this study is to examine differences of Brain-Acticity Responses to media and contents through EEG(Electroencephalography). For this, four experimental media stimuli (same news) of TV, Radio, Newspaper and Monitor(displayed only in characters) and four of erotic, sportic, comical and violent contents for TV(same media) were used. Brain waves were measured on 8 electrodes (FP1, FP2, F3, F4, T3, T4, P3, P4) according to the international 10-20 electrode system to 34 sampled students of Chongju University using QEEG-LEX3208 which developed by Laxtha Inc. Raw data were transformed with FFT(Fast Fourier Transforn) and analysed in relative band power. 22 sample data(male: 11, female: 11) for media and 24 sample data(male: 11, female: 13) for content were analysed. The results show that relative alpha powers decrease at all electrodes regardless of media or contents, which refer to confirm the existing of alpha blocking phenomena. One of the important and interesting results of this study is that relative theta power increase at almost electrodes (except for T3 & T4 incase of comedy) both in media and contents in contrast to alpha power. Further researches are needed for explaining the reasons and causes. It is also found that brain-activity responses are little bit different depend upon medium and content. TV activate frontal, temporal, and parietal lobe excluding prefrontal, while newspaper activate prefrontal lobe. In case of radio, relative theta power is increased but relative gamma power decreased at all electrodes compare to background brain waves.

Transitional Butterworth-Chebyshev 近似式을 구하는 프로그램 開發에 關한 연구

金煥宇 충남대학교 공업교육연구소 1982 論文集 Vol.5 No.1

In this thesis, a computer program is developed to find the Transitional Butterworth-Chebyshev approximations. By using it, we can find any transitional approximation, including Butterworth and Chebyshev approximations, whose dimension ranges from 1 to 10 and which has the cut-off frequency of 1 rad/sec, ripple facter ε, and transition constant k which ranges from 0 to the dimension of the approximation, and we can get its magnitude and phase characteristics. As an example, five 8-th order approximations whose transition constants k's are 0, 2, 4, 6, and 8 respectively are presented, and their magnitude and phase characteristics are calculated.

계몽주의 시대의 비극과 도덕 개념

노환홍 서원대학교 인문과학연구소 2003 인문과학연구 Vol.12 No.-

Site-directed Mutagenesis에 의한 RBP(Ribose Binding Protein)의 #5-Ala의 치환과 rbsB103 복귀 돌연변이의 분리

정환웅,백광희 경희대학교 유전공학연구소 1995 遺傳工學論文集 Vol.7 No.-

Ribose-binding protein (RBP) of E coli function in the periplasm as a component of a high affinity transport system for ribose and as a primary receptor for chemotaxis toward ribose. A mutant (rbsB103) in the signal sequence of RBP has a defect in the export of the protein to the periplasm. The intragenic suppressors for rbsB103 were isolated genetically. One of them had a change at 5th amino acid of RBP. In order to assess the role of the 5th amino acid in the transport of rbsB103, we substituted the alanine of 5th position with various amino acids by site-directed mutagenesis. The mutants replaced by Arg, Asp, Pro, or Ser at 5th amino acid of RBP can suppress the defect of protein transport.

공통사회과 교사 양성의 체제와 교육과정에 대한 연구

강환국 한국사회과교육연구회 1999 사회과교육 Vol.- No.32

6차 사회과 교육과정이 개정·실시되고 있으며, 7차 사회과 교육과정이 개정·고시되었다. 이러한 사회과 교육과정이 개정에 따라 사회과 교사 양성체제의 변화가 요청되고 있으며, 특히 중학교 1·2·3학년의 사회과와 고등학교 1학년 공통사회, 국민공통기본교육과정의 사회과를 담당할 중등(2급)정교사 공통사회 자격증에 적합한 공통 사회과 교사 양성체제가 제도화되어야 할 것이다. 이를 위해 공통사회교육과가 설립되어야 하고, 공통사회교육과의 교육과정은 사회생활과로의 통합사회과의 교육과정에 적합하게, 기존의 역사교육과, 지리교육과, (일반)사회교육과의 교육과정과 구별될 수 있도록 정체성있는 독립된 교육과정으로 설계·운영되어야 한다. The purpose of this study is to develop a system and curriculum of Intergrated Social Studies Teacher Education. According to revising social studies curriculum in secondary school, the system and curriculum of social studies teacher education must be changed. Especially, certified teacher in integrated social studies subject, and they must be trained from the department of integrated social studies education in the college of education. Teachers for optional subjects of social studies in high school are trained from the separated department of the college of social science and humanities related to the subjects, which allows students to take courses for teaching profession. The curriculum of I.S.S.E. Dept., especially the social studies education consists of "Integrated social studies education", "Curriculum & Teaching Materials in I.S.S." "Instructional Process and Evaluation in I.S.S." "Seminar in I.S.S.E."

國家와 宗敎의 分離

黃煥敎 건국대학교 1984 論文集 Vol.19 No.1

Article 19 in the Constitution of the Republic of Korea stipulated that 1) all people shall enjoy the freedom of religion. 2) A state religion shall not be recognized, adopts the principle of separation between politics and religion. Most modern Constitutions adopt the stipulations of the freedom of religion and the principle of separation between state and religions. The relations between state and religions in a country are grasped as a mutual contact in the form of struggle or cooperation between the secular power (state) and the spiritual power (religion). Historically the relations between the state and religions were the theocracy of the unity of state and religion. Bui the relations between the state and religions didn't progress very smoothly. As we saw it through the history, because the influence that the religions give to the socity has been great, so the slate should try to guarantee the freedom of religion actually. the relations between freedom of religion and separation of the state and religions are the relation of purpose and means. The freedom of religion is the essential aspect of rights of citizens. The separation between the state and religions is institutional guarantee for the freedom of religion. In view of his fact, this paper will attempt an analysis of the relations between the state and religions from the angle of history and law. The freedom of religion, generally speaking, is understood as containing the freedom of confessing faith, the freedom of performing religious Programs, and the freedom of religious association. As a grate religion is not recognized, the stats is not allowed to grant special protection or privilege to any particular religion and the state is also prohibited from managing or providing financial subsidies to religious programs. Although there is no express provision in our constitution, separation between the state and religion is interpreted that churches and religious organizations are prohibited from interfering in politics. It is also stipulated that the legislation of laws which restrict the freedom and rights of citizens is forbidden except in cases that they are needed for national security, public order and welfare, no essential aspect of the freedom or rights shall be violated. This is because the freedom of religion unlike other rights to be free, is based on human being's spiritual world and therefore, an excessive restriction imposed on the freedom of faith is liable to infringe upon man's dignity and value as a spiritual being. The relations of the sate and religions should be based on critical and constructive collaboration.

가정 학습 과제의 내용과 그 처치에 관한 분석적 연구 : 산수과와 자연과 and Its Treatment

송환용,신순임,이용화,신경자,강태완 춘천교육대학교 과학교육연구소 1978 과학교육연구 Vol.5 No.-

We aimed at in this paper analyzing the content of homework in arithmetic and science education in elementary school, and finding out teacher’s guiding direction and student’s solving trend of it. The results are as follows: 1. Homework is given similarly by the ratio of the problem in textbook of the assigned school hours of the subject. 2. Teachers demand sincerity of the students in solving their problems, but they seem to negiect further direction. 3. Students are keen on solving the problems and think that it gives them great help for their learning. 4. It will be more effective for the teachers to make out the homework jointly rather than individually.

經濟學史上에 있어서의 스미스와 케인즈 : 問題의 所在를 中心으로 Chieflyon The Location of its Problems

崔桓烈 淸州大學校 1957 論文集 Vol.1 No.1

CSPAM: 닫힌 빈발 시퀀스 패턴을 위한 효과적인 가지치기 전략

황환규 강원대학교 정보통신연구소 2009 정보통신논문지 Vol.13 No.-

Sequential pattern mining finds all of the frequent sequences satisfying a minimum support threshold in a large database. However, when mining long frequent sequences, or when using very low support thresholds, the performance of currently reported algorithms often degrades dramatically. In this paper we present a novel algorithm, CSPAM (Closed Sequential PAttern Mining), using only closed frequent sequences which are small subset of very large frequent sequences. When systematically exploring the search space of closed frequent sequences, we present two novel pruning strategies, which prune the unpromising parts of search space effectively. The experimental results show that the proposed method outperforms the previous algorithms.