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      • KCI등재

        태백산맥 남부 동해안 하천 유역의 하안단구 지형 형성

        이광률(Gwang-Ryul Lee) 대한지리학회 2014 대한지리학회지 Vol.49 No.1

        본 연구는 태백산맥 남부에 위치한 울진 광천, 평해 남대천, 영덕 오십천을 대상으로 하안단구 지형 특성, 분포, 형성시기, 하각률을 분석하여, 지반융기와 기반암 특성에 의한 하안단구 형성과정을 추정하였다. 울진 광천 상류부의 구조 및 기후단구 1면은 하상비고 9~12m, 형성 시기는 MIS 2, 하각률은 0.40m/ka로 분석되었으며, 영덕 오십천 상류부의 구조 및 기후단구 1면은 하상비고 7~10m, 형성 시기는 MIS 3, 하각률은 0.10m/ka로 계산되었다. 이러한 결과는 울진 광천 유역이 영덕 오십천 유역에 비해 상대적으로 지반 융기율이 클 가능성을 의미한다. 울진 광천의 하류부는 영덕 오십천과 달리 해면변동단구가 확인되지 않는데, 울진 광천은 큰 융기율과 풍화·침식에 강한 기반암으로 인해 하곡에서 지형의 잔존 가능성이 낮은 것으로 보인다. 한편, 연구 대상 하천의 구조 및 기후단구는 가장 낮은 단의 형성시기가 다르고, 간빙기 내 기온 저하기와 아간빙기에 형성된 단구면도 확인되었다. 따라서 기존 기후단구 모델에 따른 하안단구 편년 방법에 대해 재고할 필요가 있다. This study estimates geomorphological processes of fluvial terraces by uplifts and bedrock features, by the analyses of topography, distribution, formation age and incision rate of fluvial terraces using Gwang-cheon River in Uljin, Namdae-cheon River in Pyeonghae and Osip-cheon River in Yeongdeok located in the southern Taebaek Mountain Range. The tectonic and climatic terraces I in the upper reaches of Gwang-cheon River with an altitude from riverbed of 9~12m indicate the formation age of MIS 2 with a incision rate of 0.40m/ka. However, the tectonic and climatic terraces I in the upper reaches of Osip-cheon River with an altitude from riverbed of 7~10m show the formation age of MIS 3 with an incision rate of 0.10m/ka. These results suggest that the uplift rate in the Gwang-cheon River basin is likely to be higher than that in the Osip-cheon River basin. Unlike the lower reaches of Osipcheon River, the thalassostatic terraces are not found in the lower reaches of Gwang-cheon River, because the basin has low maintainable ability of landforms in river valley due to high uplift rate and bedrock properties resistant to weathering and erosion. On the other hand, the lowest tectonic and climatic terraces in the study areas indicate different formative ages and the terraces during the cooling stage in interglacial as well as during interstadial are also found. Therefore, this study suggests that chronological method for fluvial terrace by the previous developmental model of climatic terrace should be reconsidered.

      • KCI등재

        염산용액에서 PC88A에 의한 Sm의 용매추출

        이만승,이광섭,이진영,김성돈,김준수 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.10

        Solvent extraction experiments of Sm were performed from chloride solution with PC88A and saponified PC88A. Solvent extraction reaction of Sm with PC88A and the corresponding equilibrium constant were evaluated from the experimental and ionic equilibria data as follows Sm^(3+)_(aq)+ 1.5H₂A_(2,org)= SmA_(3,org)+ 3H^(+)_(aq) , K = 0.33. The predicted distribution coefficients of Sm agreed well with the experimental results. The distribution coefficients of Sm with saponified PC88A and the values of equilibrium pH depended on the initial extraction conditions. When the concentration of PC88A was in excess of that of Sm, saponification of PC88A greatly enhanced the extraction of Sm. (Received June 21, 2004)

      • KCI등재

        비누화 PC88A에 의한 NdCl₃와 SmCl₃용매추출의 화학모델

        이만승,이광섭,이진영,김성돈,김준수 대한금속재료학회 2004 대한금속·재료학회지 Vol.42 No.10

        A chemical model was developed to estimate equilibrium constant for the solvent extraction of Nd and Sm from chloride solution with saponified PC88A. The model could be employed to predict the distribution coefficient of metal from the initial extraction conditions. The model consisted of chemical equilibria, mass balance, charge balance and solvent extraction reaction. By applying the model to the experimental conditions and data, equilibrium constants for the solvent extraction of Nd and Sm were obtained. The effect of the saponification of PC88A on the extraction of Nd was explained in terms of the equilibrium constant obtained in this study and the change of equilibrium pH. The predicted distribution coefficients of Nd and Sm agreed well with those measured. (Received July 14, 2004)

      • KCI등재

        염산용액에서 비누화 PC88A에 의한 용매추출로 Gd와 Sm의 분리

        이만승,이광섭,이진영,김성돈,김준수 대한금속재료학회 2005 대한금속·재료학회지 Vol.43 No.5

        Solvent extraction experiments have been performed to separate Gd and Sm from chloride solution with PC88A and saponified PC88A. The effects of extraction conditions on the distribution coefficients of Gd and Sm were investigated. The distribution coefficients of Gd were higher than those of Sm in the experimental ranges of experimental conditions of this study. A solvent extraction model was developed to predict the distribution coefficients of metals and separation factor between Gd and Sm from the initial extraction conditions. The measured distribution coefficients of Gd and Sm with PC88A and saponified PC88A showed good agreements with the predicted values. (Received March 3, 2005)

      • SCOPUSKCI등재

        Family Origin Names and Haplotypes of Y - DNA in Korean Population

        Kim, Jong Soon,Kim, Yung Jin,Ahn, Gwang Sook,Lee, Ju Won,You, Sun Ah 한국유전학회 1996 Genes & Genomics Vol.18 No.4

        The use of restriction fragment length polymorphisms (RFLPs) has been proposed for the construction of a human genetic linkage map and also become a powerful tool in human population genetics. Human Y-chromosome which is haploid and paternally inherited is valuable for investigating male-mediated gene flow and for complement maternally based studies of mtDNA. We have studied 166 samples from 4 kinds of family origin names such as Kyungju Kim, Kimhae Kim, Chunju Lee and Milyang Park based on the 49aTaq 1 polymorphisms, and a total of 25 haplotypes were observed. The B, F, and I bands is observed in all haplotypes and haplotype showing A3, B, D2, D3, F, and I bands is common haplotype except for Chunju Lee. The result obtained are summarized as follows.

      • 꿀벌의 조소에 대한 조사 연구

        이광하 공주교육대학교 초등연구원 1973 公州敎大論叢 Vol.10 No.-

        These studies were enforced to compare and examine all essencial conditions to the making honey comb of honey bee group. And the result studied are as following: 1. In the power of making honey—comb, the natural hiving off group was more excellent than that of artificial hiving off group. 2. There was much drone cells in the natural hiving off group, but less in new hiving off queen bee group and artifiual hiving off group. 3. If we keep the honey一Comb rationally which was made within one year, there was no any harms in the making honey一comb by the honey bee which Was made within oneweek was bad. 4. The power of honey bees influenced by the making honey—combthat we must keep the honey comb carefully.

      • 봉군 관리가 산란성적에 미치는 영향

        이광화 공주교육대학교 초등연구원 1970 公州敎大論叢 Vol.7 No.1

        The purpose of this study is to investigate the result of egg laying by queen bees concerning to the adding of hollow honey combs and the removing materials of keeping warmth, in spring, the most important season for managingthe honey bees through theyear. The result studied is as follows: 1) To add hollow honey combs every seven daye after winter acording to the queen bees propagating is better for egg laying than to add every five days. So it is undisirable for egg laying to add hollow honey combs too often. 2) When writer removed materials for keeping warmth in spring it was more desirable foreegg laying to remove materials at three times acording to the weather than to remove them at a time.

      • 복잡적응체제론과 도가사상의 관점 비교 연구 : 조직관리를 중심으로 Focused on Organization Management

        이광모 三陟大學校 産業科學技術硏究院 2005 産業科學技術硏究論文集 Vol.10 No.-

        The purpose of this study is to reconfirm the potential applicability of the complexity theory to organizational management by comparing the similiarities between complex adaptive system theory(CAST) and Doism thought. There has been some effort to apply complexity adaptive system theory to organization management due to the rapidity of the environmental changes, CAST can cover weakness of reductionism inherent in the traditional science, and has relevance in explaining complex and chaotic organizations. However, since it has been developed from natural sciences of the West, it manifested philosophical limitations in applying to social sciences of the East. The results of the study reveals many commonalities and similiarities between Doism Thought and CAST in many aspects. Especially the Doism and the Book of Changes connecets various notions of CAST with such similarities as between the notion of emergence in complex adaptive system theory and dynamics of exchage, or the continuous flux, between nonlinear feedback loop and holism, between self-organization and the notion of the Nature, and between co-evolution and the relativism of the paradox. This study results have implications for the improvement of the richness in studying organizations.

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