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        • STS를 활용한 중학교 지구과학 수업이 학생들의 과학에 관련된 태도에 미치는 효과

          윤석태,박은영 全南大學校 師範大學 科學敎育硏究所 2006 科學敎育硏究誌 Vol.30 No.1

          The purpose of this study was to propose STS (Science, Technology and Society) teaching-learning method to fit our educational environments and to investigate the effect of STS teaching-learning method on students' attitude by applying it to the locale of school education. First of all, in order to create an educational model that will be suitable for application of STS teaching-learning method, which will be different from the traditional teaching, 1 came up with a plan for teaching and learning having selected an appropriate topic and applied it thereto. The issues that 1 had dealt with putting the focus on were: First, does STS teaching learning method bring about a positive effect on students' learning attitude comparing with traditional teaching method? Second, if STS teaching-learning method exhibits more positive effect than that of traditional teaching, so then, on what attitude has it been mostly influential? The study was carried out by having sampled 4 classes of 1 st grade in middle school located in Gwangju Metropolitan City, and 1 divided them into Control Group and Test Group, consisting of two classes each of group. And 1 confirmed the homogeneity of each group by performing a pre-test beforehand, and applied STS teaching-learning method to the test group and the traditional teaching method to the control group, and then after, 1 tried to find out. changes between two groups through post-test. As for instrument for test, 1 used Test of Science-Related Attitudes (TORSA) that verified in connection with teachings about science. Results from these tests revealed the followings: First, both groups showed a positive change, however, the test group displayed a significant difference of change comparing with the control group. Second, STS teaching-learning method affected students' attitude more positively than that of the traditional teaching method, and it was influential positively on the students' attitude in the order of “" Interest in Learning about Science," “" Pleasure as for Science-Related Hobby," “" Attitude toward Quest for Science," and “" Application for Scientific Attitude." And girls revealed more changes than those of boys in the STS teaching-learning method, rather than the traditional teaching method. The results of these study works revealed that STS teaching-learning method affect the changes of students' attitude more positively comparing with the traditional teaching, therefore, STS teaching-learning method was much more effective in the locale of school teaching. Particularly, by proceeding learning class using materials and information excerpted and selected from media and everyday life, I could excite interests of students, in addition 1 was able to increase their concentration on study, for students could easily participate in discussions and also make speeches before peer students naturally through such procedures.

        • KCI등재

          용화지역에 분포하는 백악기 화강암에 포함된 유체포유물에 관한 연구

          윤석태,박희인 대한자원환경지질학회 1994 자원환경지질 Vol.27 No.3

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        • KCI등재

          언양 자수정 광상의 성인에 관한 연구

          윤석태,박희인 대한자원환경지질학회 1994 자원환경지질 Vol.27 No.4

          '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        • 섬진강 중․하류 퇴적물과 희토류 원소 분포 특성

          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.

        • 고흥 도양읍 일대 지형 및 지질 자산 평가

          윤석태,고영구,김종희,신상은,오강호,김해경,문병찬 全南大學校 師範大學 科學敎育硏究所 2012 科學敎育硏究誌 Vol.36 No.1

          This study aims to evaluation on geographic and geological assets in Bongamri and Sangsong island, to keep and to develop them. The study carried out in the aspects of petrography and landscape field works, which include lithographical and geomorphological surveys and thin section study. The study areas are mainly composed of gneiss and granite (in part). In Sangsongdo area, characteristic geological features of veins, tafonis, folds and so forth encounter in its coast. The island also has interesting terrains of gravelly and sandy coasts, sea stacks, sea cliffs, ripple marks, sand bars. However, above assets are being injured by sea culture wastes, burning remnants, several suspended materials and artificial products. So, it needs that the assets are preserved.

        • 한국의 금은광화작용

          윤석태 全南大學校 師範大學 科學敎育硏究所 1998 科學敎育硏究誌 Vol.22 No.1

          This work is a metallogeny on gold-silver deposits in republic of Korea based on broad report of existing literature available. The metallogeny on the gold-silver deposits is mostly related to the granitic rocks. That is, gold-silver deposits distribute with in or near the areas of Daebo and Bulguksa granites. The metallogenic provinces are spatialy associated with some of the felsic to intermediate igneous rock, whereas the metallogenic epochs are temporarily connected with the igneous activities and tectonism. Gold-silver deposits are hosted in the granites and are also in Precambrian schists and gneisses, Paleozoic metasediments and carbonate rocks, as well as in Mesozoic sedimentary and volcanic rocks. In most of the vein deposits, the ores consists of electrum, argentite, native gold and silver, freibergite, polybasite, pyragyrite, miargyrite, tetrahedrite, canfildite, hessaite, jalpaite, tennantite, pearsite, stenbergite, boulangerite, cosalite, tetradymite, Ag-bearing chaicosite, stefanite, energite and base-metal sulfides. Homogenization temperatures and salinities of fluid inclusions range from 130'C to 454'C and from 0.0 wt.% to 12.9 wt.% NaCl equivalent, respectively.

        • 영산강 상류역의 수질 특성 및 개선에 대한 고찰

          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.

        • KCI등재

          쌍전중석광상(雙田重石鑛床)의 광물공생(鑛物共生)과 유체포유물연구(流體包有物硏究)

          윤석태,박희인,Youn, Seok Tai,Park, Hee-In 대한자원환경지질학회 1982 자원환경지질 Vol.15 No.4

          Ssangjeon tungsten ore deposits is a complex pegmatite deposits embedded along the contact between pre-Cambrian Buncheon granite gneiss and amphibolite. This pegmatite vein developed 2 km along the strike and thickness varies from 10m to 40m. Mineral constituent of the normal pegmatite are quartz, microcline, plagioclase, muscovite, biotite, tourmaline and garnet. The vein paragenesis is complicated by repeated deposition of quartz but three distinct depositional stage can be recognized. Quartz A stage is the stage of the earliest milky white quartz deposition as a rock forming mineral of normal pegmatite. Quartz B stage is the stage of gray to dark gray quartz replace earlier formed normal pegmatite minerals. Quartz C stage is the stage of latest white translucent massive quartz replace quartz A and B. Tungsten ore minerals and other sulfide minerals were precipitated during quartz B stage. Ore minerals are ferberite and scheelite. Minor amount of molybdenite, arsenopyrite, pyrrhotite, pyrite, chalcopyrite, sphalerite, galena, pentlandite, bismuthinite, native bismuth and marcasite accompanied. Fluid inclusion in quartz A and B are gaseous inclusions and liquid inclusions are contained in quartz C as a primary inclusions. Salinity of inclusions in quartz A and B ranges from 4.5 to 9.5 wt. % and from 5.1 to 6.0 wt. % equivalent NaCl respectively. Homogenization temperature of quartz A; quartz B and quartz C ranges from 415 to $465^{\circ}C$, from 397 to $441^{\circ}C$ and from 278 to $357^{\circ}C$. $CO_2$ content of the ore fluid increased at the ends of quartz B stage.

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