Automatic continuity of derivations and epimorphisms

이상백 忠南大學校 1994 국내석사

정상성인과 난청노인에서 반향시간과 신호대잡음비가 단음절 어음재인도에 미치는 영향

이상백 한림대학교 보건대학원 2008 국내석사

The reverberation time (RT60) was known as one of the major environmental variables that could affect auditory performances. The purpose of this study was to investigate the effects of reverberation times and S/N ratios on discrimination scores of monosyllabic words in normal and elderly adults. The tested subjects were eleven normal (with the mean age of 20.5 and mean HL of 1.7 dB) and five elderly adults (with the mean age of 74.8 and mean HL of 38.4 dB) and one hearing-impaired adult (25 year old, mean HL of 57.5). The reverberation time was digitally synthesized using Sabine equation and the test set were RTs of 0, 24, 480, 960, 1920, and 3840msec. The added signal to noise ratios were at the levels of -10, 0, and +10 dB with both contralateral and ipsilateral conditions. The results showed that monosyllabic word discrimination scores were significantly influenced by reverberation times and S/N ratios. The elderly adults with reduced hearing status exhibited greater difficulties as reverberation times increased and S/N ratios reduced. In this experimental groups, discrimination scores reached the peak values at the positive RTs, which were above 0 msec, and the performance scores were deteriorated thereafter. Especially, the influence of noise was pronounced under ipsilateral conditions. In conclusion, the degree and level of these discrepancies from those of normal subjects appeared to be reliable quantitative indicators of higher levels of functional hearing status and could be applied in practical performance measures of auditory training and rehabilitation programs.

초등학교 통일교육 활성화를 위한 효율적인 교수-학습지도 방안에 관한 연구 : 초등학교 도덕과를 중심으로

이상백 진주교육대학교 교육대학원 2003 국내석사

교육은 한 민족의 동질성을 통합하고 또한 결속시키는 가장 확실한 수단이다. 그러나 지난 50년간의 남북한 교육은 오히려 민족의 적대감과 이질성을 심화시키고 분단을 고착화하는 역기능의 역할을 하였다. 복합적 민주사회의 다원성에 부응할 수 있는 교육 방식의 다양화를 꾀하고, 피교육자의 대상에 맞는 방법과 자료 기법을 동원해야 한다. 통일은 각 사회 부문에 따라 다르게 적용되는 문제이며, 이는 제도적 통일, 사회적 통합, 문화적 공존의 차이와 다름의 인정에서 출발해야 한다. 따라서 앞으로 통일 한국의 주인이 될 새 세대에게는 한반도 통일과정과 통일 후에 발생 될 수도 있는 갈등 및 혼란을 극복할 수 있는 성숙되고 책임감 있는 인식의 틀을 지니도록 하는 것이 필요하다. 본 논문은 이와 같은 문제의식에서 급변하는 통일환경의 변화에 적응하고 통일 세대의 주역이 될 초등학생들에게 통일에 대한 올바른 인식을 심어주는 한편, 통일문제에 관한 긍정적인 자세와 건전한 통일관을 형성하여 통일 이후에 예상되는 사회적인 혼란과 갈등을 최소화하고 초등학교 통일교육의 효율적인 목표 달성을 위한 방법으로 초등학교 통일 교수-학습 방안을 제시함으로써 이론 중심의 강의식 및 주입식 통일교육 방법이 아니고 학생의 수업의 참여를 적극 유도하는 체계적이고 효율적인 초등학교 통일교육에 적합한 교수-학습 지도방안을 모색하는데 연구의 목적을 두고 있다. 이를 위해 본 논문에서는 통일원과 교육부 및 기타 관련단체 등에서 발행하는 정기 간행물 및 연구논문과 일반 대학원과 교육대학원의 학위논문, 통일정책과 통일교육의 내용을 다룬 책자와 자료들을 참고하여 문헌 연구 중심의 연구 방법에 역점을 두고 초등학교 통일교육 수업에 적합한 교수-학습 모형을 탐색해 보고 이를 토대로 각 학년별 도덕과 통일교육 관련 단원의 특성에 맞는 통일교육 교수-학습모형을 선정하였다. 통일교육 실시에 있어 어떠한 모형을 선택할 것인가 하는 문제는 매우 중요하다. 왜냐하면 가르쳐야 할 내용, 학생들의 특성이나 환경적인 여건 등을 고려한 적절한 수업모형의 선택은 수업의 효과를 결정짓는데 커다란 역할을 하기 때문이다. 일반적으로 사회 문제나 가치 문제를 다루는 수업을 위한 모형들은 모두 통일교육을 위한 수업모형에 포함 시킬 수 있으며, 이러한 수업 모형들은 지식, 가치관, 판단력, 의지나 동기, 행동 성향 등을 기르는데 적절한 것들이다. 이와 같은 수업 모형들은 크게 교사가 주도적으로 학습내용을 제시하고 수업을 이끄는 전통적인 ‘주입식 수업모형’ , 학생들의 사고를 촉진시키고 발표를 통해 학생들을 수업과정에 적극적으로 참여시키는 ‘탐구식 수업모형’ 그리고 학생들의 직접 혹은 간접적인 경험을 통해 통일 문제를 절실하게 인식하고 실천하고자 하는 행동 성향을 기르려는 ‘체험식 수업 모형’의 세가지 유형으로 묶을 수 있다. 본 논문에서는 이 모형들을 다시 세분화하여 집단탐구 수업모형, 개념분석 수업모형, 비교분석 수업모형, 가치갈등 수업모형, 토의 수업모형, 시사자료 활용수업 모형, 등 총 10가지의 수업모형에 대해 탐색해 보았다. 이중에서 초등학교 도덕과 통일교육 관련 단원의 특성을 분석하여 가장 적합한 8개의 학습 모형을 선정하였으며, 학습모형에 따라 학년별 차시별 도덕과 교수-학습 과정안을 개발 적용 하였다. 본 논문은 초등학교 통일교육 활성화를 위한 효율적인 교수-학습지도 방안을 구안하여 제시한 것으로 이 수업모형은 실혐연구를 거치지 않았지만 실험연구가 시행된다면 초등학교 통일교육의 일반화에 기여하게 될 것이다. 앞으로도 통일교육을 위해서는 다양한 기법들의 개발과 적용이 필요하고 이에 대한 연구가 더욱 활성화 된다면 통일교육의 교육적 효과도 배가 될 것이다. Education is the most secure means of unifying and strengthening the identity of a people. However, the education in the South and the North has deepened the hostility and disparateness between the two, thus it has played negative function to fix the partition of the peninsula. Various means of education should attempt to meet the variety of the complex democratic society, and new techniques and materials suitable should be employed for the educatees. The notion of reunification should be differently applied to each part of the society, which should start with the awareness of the fact that there are differences among the unification of systems, social unification, and cultural coexistence. Therefore, the new generations, who will be the owners of the reunified Korea, should possess the responsibility and maturity to overcome the possible discord or disorder which would occur during or after the process of reunification. Based on the awareness of the above questions, this study aims to seek for a new teaching-learning program effective for the education of reunification in elementary schools, which will lead the students to participate in the reunification education more actively with a little emphasis on theory in class and grinding. In this study a teaching-learning plan is attempted, which will make the elementary school students meet the rapidly changing environment in reunification, and implement them with the correct awareness of reunification to be able to minimize the possible discord and disorder during or after the reunification. For this, the appropriate teaching-learning model was found for the reunification education at elementary schools putting emphasis on research methods, research has been conducted by examining various documented materials, after consulting periodicals of Ministry of Unification, Ministry of Education and other related organizations, research papers, dissertations in graduate schools and graduate schools of education, books and materials for the reunification policy and education of reunification. Based on the result, a teaching-learning model was selected for the reunification education suitable for the characteristics of ethics and the reunification education subject of each grade. In performing the reunification education, the matter that which model we should choose is very important. Because selecting the most efficient lesson model with regard to the contents to teach, specialties of students and other conditions are the key to enhance the effect of education. Lesson models for education of general social problems or values can be combined with models for the reunification education and they will be good for developing knowledge, sense of values and judgement, will, motive, and behavior inclination. These models can be comprized broadly as three types, including traditional 'grinding type lesson model' in which teacher plays a leading part in presenting and leading lessons at class, 'inquiry type lesson model' with which considers students are to be furthered and they can actively participate in lesson process through making presentations, and 'empirical type lesson model' that intends to foster behavior inclination to be aware of and practice reunification matters through students' direct and/or indirect experience. In this study, the above mentioned models were divided in a more detailed way into ten lesson models such as 'group research lesson model,' 'concept analysis lesson model,' 'comparative analysis lesson model,' 'value conflict lesson model,' 'discussion lesson model,' and 'lesson model utilizing current event materials.' Among these ten models, the most pertinent eight lesson models were selected after careful consideration of the characteristics of units of elementary school ethics subject related with the reunification education to develop and implement a design for teaching-learning curriculum of elementary ethics subject. This study attempted to develop and suggest an effective teaching-learning plan for the activation of reunification education. No empirical studies have done yet, but if any experiment is carried out, it will greatly contribute to the generalization of the reunification education at elementary schools. It is necessary to continue to develop and implement various techniques in the reunification education, and it is expected that if further researches are to be activated, there might be more educational effect for the reunification education.

여고축구선수의 경기력과 인지 심리적 요인과의 관계

이상백 강릉대학교 2002 국내석사

Bi2Te3와 전도성 고분자의 혼성 재료 열전 특성 연구

이상백 계명대학교 대학원 2016 국내석사

본 연구는 화학적 합성법으로 제조한 Bi2Te3의 낮은 열전 성능을 향상시키기 위하여 열전나노복합재료 제조 방법을 도입하였고, 제 2상의 재료를 사용하여 새로운 열전복합재료를 제조하였다. 대표적인 전도성 고분자 3종(PEDOT:PSS, PANI, Ppy)을 제 2상의 재료로 사용하였고, 전도성 고분자의 특성을 고려하여 비활성 분위기하에 방전플라즈마 소결법으로 유-무기 혼성 열전 재료를 제조하였다. 사용한 전도성 고분자가 제조된 혼성재료의 미세구조, 밀도, 결정구조, 상변화 및 열전 특성에 미치는 영향에 대하여 연구하였다. 동일한 조건하에 소결을 실시하였으나, 사용한 전도성 고분자의 종류와 함량에 따라 다른 모양 및 크기의 결함이 소결체에서 확인되었다. 소결체들의 밀도는 각각 Bi2Te3(7.72 g/cm-3), Bi2Te3/PEDOT:PSS 2.5 wt%(6.38 g/cm3), Bi2Te3/PEDOT:PSS 5.0 wt%(5.93 g/cm3), Bi2Te3/PANI 2.5 wt%(6.65 g/cm3), Bi2Te3/PANI 5.0 wt%(6.14 g/cm3), Bi2Te3/Ppy 2.5 wt%(6.55 g/cm3), Bi2Te3/Ppy 5.0 wt%(6.47 g/cm3)로 확인되었다. Bi2Te3/전도성 고분자 혼성 재료에서 사용한 전도성 고분자의 함량이 증가할수록 격자 면 간 거리는 감소하고, 회절각도는 높은 각도로 이동함을 확인하였다. 이것은 전도성 고분자가 Bi2Te3 rhombohedral 결정격자 내에 도입되어 생긴 결과로 판단된다. 한편, 사용하는 전도성 고분자의 함량이 증가할수록 운반자 밀도가 감소하여 전기전도도가 감소하였다. 모든 시편은 n형 전도특성을 나타내었고, 온도가 증가할수록 전기전도도가 감소하는 축퇴 반도체 특성을 보였다. PEDOT:PSS, PANI, Ppy를 5.0 wt% 사용하여 제조한 혼성 열전 재료는 각 전도성 고분자의 함량이 증가함에 따라 운반자 농도가 감소하였다. 그 결과, 전기전도도는 감소하고 제벡 계수는 증가하였다. 또한 PEDOT:PSS, PANI, Ppy의 함량이 증가할수록 전자 열전도도와 격자 열전도도가 감소하여 총 열전도도가 감소하였다. 결과적으로, 현저한 열전도도 감소효과로 인하여 전기전도도가 부족함에도 불구하고 Bi2Te3보다 높은 성능 지수를 얻을 수 있었다. 473 K에서 Bi2Te3/PEDOT:PSS는 ZT = 0.51, 473 K에서 Bi2Te3/PANI는 ZT = 0.59, 398 K에서 Bi2Te3/Ppy는 ZT = 0.66의 성능지수가 확인되었다. 반면에 PEDOT:PSS, PANI, Ppy을 각각 2.5 wt% 씩 사용하여 제조한 혼성 열전 재료의 출력인자와 열전도도는 Bi2Te3와 비슷한 수준으로 확인되었으며, 결과적으로 성능지수의 향상은 없음을 확인하였다. In this study, a new thermoelectric nanocomposite material manufacturing method was adopted to improve low thermoelectric performance of Bi2Te3 using secondary phase materials. The secondary phase materials used were three kinds of conductive polymers (PEDOT:PSS, PANI, and Ppy). Organic-inorganic hybrid thermoelectric materials were prepared by spark plasma sintering method in Ar inert atmosphere taking consideration of the nature of the conductive polymers. Microstructure, density, crystal structure, phase change and thermoelectric properties of hybrid thermoelectric materials with conductive polymers were thoroughly investigated. Although the sintering process was performed under the same conditions, different shapes and sizes of defects were observed in the sintered body depending on the types and contents of conductive polymers. Densities of sinter bodies were found as Bi2Te3(7.72 g/cm-3), Bi2Te3/PEDOT:PSS 2.5 wt%(6.38 g/cm3), Bi2Te3/PEDOT:PSS 5.0 wt%(5.93 g/cm3), Bi2Te3/PANI 2.5 wt%(6.65 g/cm3), Bi2Te3/PANI 5.0 wt%(6.14 g/cm3), Bi2Te3/Ppy 2.5 wt%(6.55 g/cm3), and Bi2Te3/Ppy 5.0 wt%(6.47 g/cm3), respectively. Reduction of lattice plane spacing as the content of conductive polymer increased, and shifting of diffraction angle to a higher angle in the Bi2Te3/conductive polymer hybrid materials was observed. These results were caused by introduction of conductive polymers in the crystal lattice of rhombohedral Bi2Te3. Conversely, as the content of the conductive polymer in the hybrid thermoelectric materials increased, decrease of the electrical conductivity due to reduction of carrier density was observed. All specimens showed an n-type conduction property and degenerate semiconductor characteristics of decreasing electrical conductivity with the increase of temperature. We found a decrease of carrier density by increasing conductive polymer contents in the hybrid thermoelectric materials, which were manufactured using 5.0 wt% PEDOT:PSS, PANI, or Ppy. As a result, electrical conductivities were decreased, but Seebeck coefficients were increased. In addition, the increase of conductive polymer contents showed a decrease of total thermal conductivity due to decrease of electron thermal conductivity and lattice thermal conductivity. Consequently, a higher figure of merit for hybrid thermoelectric materials than Bi2Te3 was obtained due to the significant reduction of their thermal conductivities. We observed ZT = 0.51 for Bi2Te3/PEDOT:PSS at 473 K, ZT = 0.59 for Bi2Te3/PANI at 473 K, and ZT= 0.66 for Bi2Te3/Ppy at 398 K. On the other hand, powerfactor and the thermal conductivity of hybrid thermoelectric materials manufactured using 2.5 wt% of PEDOT:PSS, PANI, or Ppy showed similar levels of thermal conductivity as Bi2Te3. As a result, it was confirmed that there is no improvement in the figure of merit for 2.5 wt% conductive polymer containing hybrid thermoelectric materials.

島山의 敎育思想 硏究

이상백 慶星大學校 敎育大學院 2000 국내석사

The purposes of this study are as follows. The first is to understand Dosan's thoughts on human and the background of his times. The second is to find out Dosan's basic thoughts and educational ideas. The third is to find out his educational contents and teaching method by considering Dosan's educational ideas. The fourth is to understand the specific realization of Dosan's educational thoughts. The fifth is to obtain what his thoughts suggest in connection with modern education. The conclusions of this study are as follows. 1) Born as a farmer's son, Dosan lead himself into the growth of the thought of nationalism after meeting Phil Dae-yeon, a senior pioneer and took part in the independence movement as a member of independence association and an orator. His thoughts on human consists of four factors 誠(sincerity), 愛(love), 勇(bravery), 智(knowledge) - with all of them in harmony. 2) Dosan's basic thought is to enlighten the nation and rear power and put an importance on personality and responsibility. He made it an educational aim to bring up a person with a whole character and a power as a way of making the nation powerful. All the things from above considered, his educational aim is the education of a whole man. 3) Dosan made an effort in bringing up a patriot with good personality for the nation's self independence and prosperity. He was a philosopher of education who emphasized these educational ideas- Musil(to make an effort to be sincere and true), Yokhang(to try one's best to perform), Loyalty, Bravery and practiced them for the independence by means of the national enlightenment and self innovation. 4) Dosan's educational content is to discipline a whole character and a sacred unity. He suggested four spirits-Mushil, Yokhang, Loyalty, Bravery-and three discipline factors-virtue, physical training and knowledge (he put a focus on virtue). The sacred unity training means cooperation, trust acquirement and justice discipline for common goal. (Dosan emphasized the necessity of national unity). The discipline of democratic citizenship means self responsibility and self sacrifice for the nation. His educational method is 'Eloquence', 'Dialogue', 'Models by living', and 'The way of making citizen brave and tender'. He used the Eloquence and the Dialogue as a way of enlightenment to make the whole nation feel the necessity of moral consciousness, world trends and the new culture. The practice of his educational thought could be found out not only in school education but also in social education (Jumjin, Deasung and Dongmyung school was the example of school education). 5) Next things are what the practice of his educational thoughts suggest in relation to today's education. First of all he emphasize to foster an expert with ability and power and following is to have a sense of responsibility. Finally he think it is important to aim at a whole man with a whole character. Therefore Dosan's educational thoughts are connected with the idea of human education which Korean education has pursued for the purpose of bringing up a man with ability in the information society of the 21 century and Korean with a good personality.

중등학교 기하의 이론적 배경에 관한 연구

이상백 경성대학교 교육대학원 1993 국내석사

In this paper, in teaching the geometry of present secondary school, teachers keep in their mind basic cantents, academical backgrounds and furthermore they look for geometrical models to be introduced secondary school curriculum so that it may become more concret teaching method and contents on geometrical education and it has on objection to theoretically approach these contents to the geometrical guidance of secondary school.

중등수학교사의 교수. 학습에 대한 태도 조사 분석 : 경상남도 및 부산시 중등수학교사를 대상으로

이상백 경남대학교 교육대학원 1997 국내석사

관광지 이미지가 관광자만족과 행동의도에 미치는 영향

이상백 강릉원주대학교 2013 국내박사

中學校技術科 敎具ㆍ設備에 關한 硏究

이상백 慶北大學校 敎育大學院 1975 국내석사

The tools and facilities for student practice of the industrial arts in the middle school-level were investigated, by means of questionairs to students and industrial arts teachers and by analyzing the content of the current textbooks. The basic skill and tools of the scope of industrial arts have been extracted from the textbooks and three standard models of the essential tools and equipments for industirial arts of middle school course were proposed.