http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
윤석태,이숙,고영구 全南大學校 師範大學 附設 科學敎育硏究所 2002 科學敎育硏究誌 Vol.26 No.1
We recognize that many earth science terms are written in Chinese Characters in middle and high school textbooks. We investigate whether students with more knowledge of Chinese Character get higher academic adaptability in inquiry activities using the concept and understanding level of earth science terms than the students with less knowledge of Chinese Character. And we analyze which relationship exist between two groups. Surveyed students are second graders in high schools in nationwide who finished first semester right now. We research them through self-developed questionnaire considering students learning level. We use technical statistics to verify the interrelationship among questions and significance of research results. The study results are that students with more Chinese Character knowledge show high understanding level and high correct answer rate in inquiry questions using concept. However, the students with little knowledge also show high correct answer rate in inquiry question using concept but there is only a little difference on the level of concept understanding for earth science education is linearly connected from elementary school to high school. We will conclude that Chinese Character learning will help understand better concept but the lack of knowledge about Chinese Character will not be obstacle to understand the concepts in earth science futhermore to do inquiry activities using the concept
윤석태,오강호,고영구 全南大學校 師範大學 科學敎育硏究所 2005 科學敎育硏究誌 Vol.29 No.1
To consider qualities and improvements for the stream waters of upper Yeongsan River drainage system, total of 54 water samples were taken from Yeongsan main, Hwangryong, Gwangju and Jiseok streams. On the basis of Pipers diagram, water qualities of these streams are corresponded to natural stream water on the whole. But BOD, COD, T-N and T-P are increased into downward in the streams. In particular, these values are highly increased at the encountered area between the above branch and the main streams. From above results, it is suggested to establish special law controlling these streams for water quality improvement as follows; the critical water quality indices to organic contaminations of T-N and T-P, the control of non-point contamination origins in relation with out-fluxing in rainfall time, specific water quality administration to encountered sites between main and each branched stream, and the consideration in the total amount of contamination to each branch streams.
윤석태,고영구,나범수,오강호 全南大學校 師範大學 科學敎育硏究所 2007 科學敎育硏究誌 Vol.31 No.1
On the basis of soil analyses in Hampyeong area, A and B layers are dominantly developed in well weathered soils of the area. Those soil grain sizes are coarse to fine, showing a wide variation, and are poorly sorted. The soil characters directly influence to soil textures, and then, the texture types are classified into several kinds as clay, clay loam, sandy loam, sandy clay, and loam in the area. Soils in the area were formed in variable mixed ones including mountain piedmont and lower flat area environments, arid they are varied into brown soils with much humid material and deep weathered orange ones. Those soil characteristics might be brought on diverse agricultural types as ginseng and bamboo farms putting first of dry and water field ones in the study area.
윤석태,고영구,김종희,신상은,오강호 全南大學校 師範大學 科學敎育硏究所 2015 科學敎育硏究誌 Vol.39 No.1
This study considers analyses on the distribution of rare earth elements and the relations between grain sizes and these elements in the sediments of Seom Jin drainage system. The sediments are of -0.78 to 1.92 ∅ and assigned to very coarse to medium sands. Though the sediments are well to very poorly sorted in ranges of 0.36 ~ 2.32 phi (0.90 phi in average), most is well sorted below 1.0 ∅. Rare earth elements normalized by chondrites show that LREEs are more enriched relative to HREEs in the area. In correlation between grain size and the elements, the elements are strongly positively related with fine sands of 3 ~ 4 ∅. However, the relation between the elements and coarse sands of 0 ~ 1 ∅ is negative. La and Ce are enriched over 1. LREEs are more concentrated than HREEs, but whole REEs are low in the enrichment of the area.
암석과 광물에 대한 중학생들의 흥미도와 이해도에 관한 연구
윤석태,이승희 全南大學校 師範大學 科學敎育硏究所 2001 科學敎育硏究誌 Vol.25 No.1
Interests, understandings and distinctions of middle school students on rock , mineral and their relationships on science grade are analyzed in this study. The results are as follows. 1) Considering interests on rock and mineral in science grade high group and low group students have more interests and middIe group students are have the least interests. 2) Considering understandings on rock and mineral in science grade high group students have much more understandings than low group students. 3) Considering distinctions on rock and mineral in science grade high group is better than the others on rock, and three groups are similar on mineral. 4) Interests on all students is low and their ability of distinctions is much lower than understandings. 5) Interests-understandings, interests-distinctions, understandings-distinctions are positively correlated with each other, and relationships between understandings and distinctions is very high and relationships between interests and distinctions is very low. To increase interests, understandings and distinctions of Middle school students on rock and mineral, research on earth science textbooks and improvement of teaching method with diverse teaching materials seem to be necessary.
무주 수왕광산에서 산출되는 섬아연석의 황동석 병변에 관한 연구
윤석태 한국지구과학회 2008 한국지구과학회지 Vol.29 No.7
The Soowang deposits occur in the quartz veins that were filled fissures in the middle Cretaceous porphyritic granite and/or the Precambrian Sobaegsan gneiss complex. Paragenetic studies suggest that the vein filling can be divided into four identifiable stages. Sphalerites were deposited by the cooling fluids at stages Ⅰ, Ⅱ, and Ⅲ. The results of microscopic observation and EPMA analysis suggest that the chalcopyrite dots and disease in sphalerite are replacement products by later hydrothermal solution at the early stage Ⅲ. The inferred processes of chalcopyrite disease are as follows : (1) Fe enrichment to the margins and along the cracks of the Fe-poor sphalerite by Fe-rich solution, (2) Formation of chalcopyrite dots in the Fe-enriched sphalerite formed at the stage Ⅱ, and Fe reduction of sphalerite near the chalcopyrite dots by Cu-bearing solution, (3) Formation of "chalcopyrite disease" penetrating the compositional zoning of sphalerite at the early stage Ⅲ. 수왕광상은 중생대 백악기 중기의 반상화강암이나 선캄브리아기의 소백산 편마암 복합체에 발달한 열극을 충진한 석영맥에서 산출된다. 광물 공생군에 대한 연구 결과 광화작용은 4차례에 걸쳐 일어났다. 섬아연석은 광화작용이 진행되는 동안 광화Ⅰ, Ⅱ, Ⅲ기에 각각 정출하였다. 현미경 관찰과 전자현미분석 결과 섬아연석에서 나타나는 황동석 점적과 황동석 병변은 광화 Ⅲ기 초에 열수용액의 교대작용에 의하여 생성되었을 것으로 생각된다. 황동석 병변의 생성 과정은 아래와 같다. (1) Fe가 풍부한 용액이 Fe가 결핍된 섬아연석의 가장자리나 틈을 통해 Fe 부화 (2) 광화Ⅱ기에 Fe가 결핍된 섬아연석에 황동석 점적을 형성하고 Cu를 함유한 용액에 의해 황동석 점적 주변의 섬아연석에 Fe 감소 (3) 광화Ⅲ기 초에 황동석 병변을 형성하였다.