광주지역 국민학교의 소음공해실태에 관한 연구

최도성,김영옥 한국초등과학교육학회 1994 초등과학교육 Vol.13 No.2

The purpose of this study is to survey the noise pollution status of some elementary schools in kwangju city. The results are summarized as follows : 1. Noise pollution units in the 5th curriculum of elementary school are included in the subjects such as Wise Life, Society, Physical Education, and Nature. Although the system of their contents is well established, the educational effects are undermined by the difficulty of the integrated approach to the noise pollution. 2. Most of teachers and pupils have been annoyed by noise pollution. And they have gone through experience of teaching disturbance, emotional uneasiness, and weekened thought. 3. Most of teachers agree to the necessity of noise pollution education. However, a few of them have a practical experience of educating it. 4. The surveyed schools are primarily affected by the noise of vehecles. 5. The results of noise measurement show that over 70% of classrooms exceed 50 dB, the noisy limit. The noise level of classrooms in the second and third floor is higher than that of classrooms in the first floor. This level is relatively low in the classrooms arranged at right angle to the street and surrounded with tall soundproof trees. 6. To solve serious problems of school noise pollution, we should take much interest in the noisy source, the propagation of sound, the construction of classrooms and other school buildings and the environmental education.

한국산 홍조 난쟁이게발에 관한 분류학적 연구

최도성 조선대학교 기초과학연구원 2011 조선자연과학논문집 Vol.4 No.1

Morphological and anatomical characters of Amphiroa misakiensis Yendo are investigated with field materials and taxonomic accounts are given to the species. The plants grow on rocks, mussels or non-articulated corallines from the subtidal zone of Cheju island, and is characterized by recumbent and spreading habit from the substrate. The species is well defined by about 4 cm height, loosely tufted thallus with irregularly dichotomous branches, flat and irregularly broad intergeniculum in upper part, geniculum developing by cracking and sloughing of calcified cortical tissue overlying uncalcified genicular tissue, five to thirteen-tiered geniculum with unequal length, and conceptacles buried in cortices of intergeniculum. Reproductive structures in tetrasporangial, male and female plants are typical of Amphiroa. The structure and developmental patterns of conceptacles are very similar to those shown in previous studies.

제 2 분과 : 채권과 이자율 / 변동금리채의 가격결정에 관한 연구

최도성,고봉찬,정재만 한국증권학회 2000 한국증권학회 발표논문집 - 2000년 제3차 정기학술발표회 Vol.0 No.-

스피커 댐퍼의 실험적 분석

최도성,이성수 한국음향학회 2004 韓國音響學會誌 Vol.23 No.3

스피커 댐퍼의 재질에 따른 휨강도와 기하학적 요소인 주름의 반경 및 각 주름의 곡률반경으로 탄성계수를 결정하여 실험치와 비교하였다. 그 결과 댐퍼의 탄성은 휨강도에 비례하고 원형주름의 반경에는 반비례하며 주름의 곡률반경의 제곱에 반비례함을 알 수 있었다. 또, 댐퍼의 안쪽은 주름을 작게 만들고 바깥쪽은 주름을 크게 만든 변형 댐퍼로 스피커를 제작함으로서 고음부의 감도가 증가하면서도 저음부가 강화되는 소형 스피커를 만들 수 있었다. A decision of the modulus of elasticity is made by using the degree of bending strength of materials for loudspeaker damper and the radius of corrugation lines and the radius of curvature of each corrugation as a geometrical element. And it is compared with experimental measurements. As a result. the elasticity of damper is proportional to the degree of bending strength and inversely proportional to the radius of corrugation lines and inversely proportional to the square of the radius of curvature. We made a small loudspeaker using a modified damper which take the form of inner small curvature and outer large curvature of each corrugation. This loudspeaker have the increased sensitivity in high frequency and also in low frequency region.

초등학교 자연과 ' 작은생물 ' 단원의 수업 실태 분석

최도성,김석중,남철우,최규식,김정길,한광래,송판섭,한효의 한국초등과학교육학회 2000 초등과학교육 Vol.19 No.1

The purpose of this study is to survey the instructional state of the unit 'Small Living Things' in the Elementary School Science. For this study, 100 teachers were surveyed on teaching-learning practices. More specifically, questions were asked on the degree of accomplishing instruction objectives, frequency of field. study, experimental preparation, alternative instructional methods, amount of preparation, availability of reference books for teachers and availability of information materials on the Kwangju region. Our results show that teachers find the objectives related to the collection of living things for class experiments and the task of growing and observing them the most difficult to accomplish. It was reported that 38% of teachers have actually conducted field trips. The obstacles listed in going out on field study range from lack of knowledge of appropriate places, lack of time, to safety concerns. The most difficult problem in teaching this unit was preparing proper instructional materials, regardless of teacher's gender, career, and interest. Most respondents let children provide the experimental subjects. Teachers with collection experience tend to provide for the experimental materials themselves. Our Analysis also reveals that more than 70% of the respondents do not have adequate knowledge of the species dealt with in the unit. Gender, career, and interest area of the teachers did not make any difference (p$lt;.05). In the case that proper experimental subjects have not been prepared, VTR, textbooks, and charts were reported as the most frequently used alternative instruction aids. The level of content and amount of knowledge contained in this unit were found to be appropriate. Information on instruction materials and experiment observation were obtained through the teaching manual or periodicals (58%), information materials on the region(20%), and fellow teachers (12%). Reference books for teachers and materials on the region are perceived to be inadequate in order of importance in the areas of preparation method, level-wise learning guide, experimental observation, and information on species covered in text. Overall, it was judged that the highest concern was with obtaining experimental materials, and teacher's reference books and materials on the region need to be reinforced to allow teachers to more fully utilize them. Development and distribution of proper instruction-learning materials to the children's level is also required.

1997년 추계 특별 심포지움 ( 주제 : 기업재무행태와 투자자보호 ) : 기업부실화와 차입경영

최도성 한국재무학회 1997 97년 추계 특별 심포지움 Vol.- No.-

기업부실화와 차입경영

崔道成 韓國經營硏究所 1998 經營論集 Vol.32 No.4

국민학교 교재식물에 관한 분석적 연구

최도성,강문주 韓國生物敎育學會 1992 생물교육 Vol.20 No.1

We carried out the analytical study on the teaching plants appearing in all the textbooks of the primary school of Korea, 1990. The results were summarized as follow: 1. Teaching plants of 222 species appeared in the textbooks of the primary school. The high level number of species were appeared in Korean language, Paractice, Society, Morality subject, and in sixth, fourth and fifth classes in turn. 2. The errors of plant name were discovered in the 26 species. 3. The classification system for plants in the primary school curriculum was based on the Eichler system. Teaching plants (excluded fungi) were classified to Crytogamae (13 species) and Phanerogamae (209 species). And Angiosperms were eoncretely dealt in the present curriculum of the primary school. 4. Because Eichler system does not show the phylogenetic relationship in the plant classification, we propose the modified system to be able to adopt in the primary school curriculum. 5. The number of plants appearing in nature subject as materials for experiment were 32 species. Their appearing frequencies were high in some plants, such as kidney bean, radish, corn, Spirogyra, and duckweed. We present exchangeable plants far them and reasons to that.

全羅南道産 海藻類의 目錄

崔燾成 木浦大學校沿岸生物硏究所 1990 沿岸生物硏究 Vol.7 No.1

초등과학 수업을 위한 지식채널 ⓔ 활용에 관한 연구

최도성 光州敎育大學校 初等敎育硏究所 2010 初等敎育硏究 Vol.24 No.2

The purpose of this research is to analyze the Internet web sites that related to science instruction and make appropriate uses in classroom. There were various web sites to choose, and the Knowledge Channel ⓔ was selected for this research. This research will abstract information that related to science instruction in elementary school from the Knowledge Channel ⓔ, also it will give ideas how to use them in classroom. The questions that set up for this research are same as follow: 1. Analyze actually uses of the Knowledge Channel ⓔ based on elementary school teachers. 2. Analyze the broadcasted programs of Knowledge Channel ⓔ's scientific relation. 3. After all analysis, propose an plan to use of the Knowledge Channel ⓔ, based on the relationship between elementary school scientific curriculum and the Knowledge Channel ⓔ. For this research, there were surveys about elementary school teachers, to find out how much information do teachers have about the Knowledge Channel ⓔ and how often do they use the Knowledge Channel ⓔ in the classroom. In addition, programs that broadcasted from September 5th, 2005 to August 25th, 2008 were selected and reviewed, and classified into Physics, Chemistry, Earth Science, and Biology, and arranged the relation of the elementary school science curriculum. First, the recognition of the Knowledge Channel ⓔ was low, and the reasons for this outcome seems to be the hours broadcasting which is too late, also the Knowledge Channel ⓔ is not a preferable terrestrial broadcast channel. Second, during the research, there were 457 programs broadcasted; 6of them were related to Physics, 3 were related to Chemistry, 53 were about Biology, and 20 were about Earth Science. Analysis describes there were enough programs about Biology and Earth Science that may use in the class. As results of analysis plans for efficient use of the Knowledge Channel ⓔ, the most effective unit for 3rd grader was 'Life Cycle of Animals', for 4th grader was 'Transformed Water', for 5th grader was 'Family of Sun', and for 6th grader was 'Structure of Body'. In addition, 19 units of lessons were usable in motivation stage, and 51 of units were possibly applied in conclusion stage. In conclusion, as teachers use programs of the Knowledge Channel ⓔ as actively to 3rd to 6th graders, it definitely has positive effects to achieve goals of each lesson.