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수용성 Polyvinyl Phosphate-Cu(II) Complex 의 전기전도 특성에 관한 연구
韓相玉,孟琦錫,宋海永 忠南大學校 産業技術硏究所 1986 산업기술연구논문집 Vol.1 No.2
The viscosity of PVP-Cu(Ⅱ) complex was lower than PVP-A1(Ⅲ) complex, because the conformation of the former was more compact than that of the latter. The formation of PVP-metal were the most stable at pH3-5 region. The thermal stability for PVP-metal complexes had been determined through DTA and TGA measurement. As results, it has been observed that thermal stability for PVP-metal complexes were stabilized less than that of PVP. The PVP-Cu(Ⅱ) complex exhibited surface resistivity around 10⁴ohmㆍ㎝-² when modified with iodine. The resistivity was significantly affected by the amounts of cupric chloride, and iodine, satisfactory results being given by more than 15 wt% of cupric chloride and about 1.0 wt% of iodine. It was also observed that the resistivity of complex formed at pH 3-5 region was low.
工業敎育大學 工業化學敎育科의 敎科課程 改善에 관한 硏究
송해영,홍원표,맹기석,윤석호,노재성,강용 충남대학교 공업교육연구소 1983 論文集 Vol.6 No.2(A)
The methods for the improvements of curriculum of the Department of Industrial Chemistry Education were examined in some detail discussing the following items; 1) Comparison and analysis of the new curriculum with the old of the Department of Chemical Industry in technical high school. 2) Examination of the current curriculum of the Department of Industrial Chemistry Education in Industrial Education College. 3) Suggestion of the improved curriculum suitable for the students in the Department of Industrial Chemistry Education.
서정목,송해영 공주대학교 사범대학 과학교육연구소 1988 과학교육연구 Vol.20 No.1
Acrylic polymers such as polyacrylonitrile, poly(acryl-onitrile-co-4-vinyl pyridine), poly(acrylonitrile-co-acrylicacid) were prepared. And then the polymers-cu(Ⅱ)complexes were prepared. We studied on the electrical conductivities of the complexes. The results were below. The resistivity of PAN-Cu(Ⅱ) complex was about 10⁴Ω-cm, and it had the lowest value at PH 11. The good Electrical conductivity could be shown when the Iodine amount was above 1 perlent. and cupric chloride amount was above l percent, and cupric chloride amount was above l percent, and cupric chloride amount was above 20 percent. The electrical conductivities of th PAN-4VP-Cu(Ⅱ) complex and the ANAA-Cu(Ⅱ) complex showed all about 10-5 Ω -¹cm-¹.
CuxS를 導入한 Acrylonitrile-Acrylamide 共重合體의 電氣的 性質
여창열,김동철,송해영 忠南大學校 産業技術硏究所 1989 산업기술연구논문집 Vol.4 No.2
To improve the electrical conductivity of acrylonitrile film, acrylonitrile copolymer was synthesiz ed conductive polymer, which was acrylonitrile-acrylamide complex induced by CuxS The conclusion obtained from this study are as follows ; 1. The conductivity of CuxS-AN-AA film was much influenced by pH, conentrations of CuSO₄, (NH₃OH)₂SO₄, Na₂S₂O₃and reaction time. 2. The volume and Surface resistivities of CuxS-AN-AA film were increased by order of 10(Ω㎝) in volume resistivities, 10(Ω) in surface resistivities than those of AN-AA copolymer. 3. The Tm value of CuxS-induced copolymer was lower than that of AN-AA copolymer in DSC Curve, 4. CuxS-AN-AA copolymer complex was decreased in tensile properties
鹽酸一琥拍酸 混合溶液에서의 Cr(Ⅲ)-Mn(Ⅱ)-Cu(Ⅱ)의 分布係數 및 分離
김동원,송해영 공주대학교 사범대학 과학교육연구소 1978 과학교육연구 Vol.10 No.1
Cation exchange distribution coefficients with Dowex50W-x8 are presented for Cr(Ⅲ) Mn(Ⅱ) and Cu(Ⅱ) in hydrochloric acid-succinic acid media, covering the acid concentration range 0.05 to 9.0M and the succinic acid concentration range 0 to 80%. The distribution coefficients were determined by using the batch method. Based on these distribution data the possibilities of separations of the elements are indicated and discussed.
李柾熙,宋海永 경북대학교 평화문제연구소 1988 평화연구 Vol.13 No.-
The purpose of this study is to provide some utilizable points to northward foreign policy with the consideration of the various problems raisd among the minority problems in China. Presently there are fifty-six peoples living in china. The numbers of minor peoples counts 55 except the Han race. The population of these minor peoples is about 67,230,000 and the proportion to the whole china is at most 6,5%. But the vast regions where they live come up to 50∼60% of the whole area and abound in natural resources. The realitky that they claim seperation and indeperdence becomes a serious obstacle on the modernization of china. Thus, the policy of minority problems is very meaningful because the future of the modernization in china is at the mercy of this policy. This treatise is composed of the following five chapters. In Chapter I, We have raised the problem mentioning the geographical environments of china. In chapter Ⅱ. We have mentioned the historical background for the formation and the regional distribution with the introduction of the present situations. In chapter Ⅲ. We have mentioned the fundamental principles of china twoard the minor peoples, the changing process of the policy of minority problem and the autonomy policy in the race-based regious. In chapter Ⅳ. We have examined the aspects of their tradtional way of life, putting accent on the aspect of food, clothing, and habitation. In Chapter Ⅴ. We have proposed the prospects of minority problems on the basis of this study.
송해영,김재호,Min Young Kim,Kyung Hye Kim,Il Hwan Lee,신상훈,이정섭 생화학분자생물학회 2010 Experimental and molecular medicine Vol.42 No.8
Rheumatoid arthritis (RA) is a chronic, inflammatory autoimmune disorder that causes the immune system to attack the joints. Transforming growth factor-β1(TGF-β1) is a secreted protein that promotes differentiation of synovial fibroblasts to α-smooth muscle actin (α-SMA)-positive myofibroblasts to repair the damaged joints. Synovial fluid from patients with RA (RA-SF) induced expression of α-SMA in human adipose tissue-derived mesenchymal stem cells (hASCs). RA-SF-induced α-SMA expression was abrogated by immunodepletion of TGF-β1 from RA-SF with anti-TGF-β1 antibody. Furthermore, pretreatment of hASCs with the TGF-β type I receptor inhibitor SB431542 or lentiviral small hairpin RNA-mediated silencing of TGF-β type I receptor expression in hASCs blocked RA-SF-induced α-SMA expression. Small interfering RNA-mediated silencing of Smad2 or adenoviral overexpression of Smad7 (an inhibitory Smad isoform) completely inhibited RA-SF-stimulated α-SMA expression. These results suggest that TGF-β1plays a pivotal role in RA-SF-induced differentiation of hASCs to α-SMA-positive cells.
宋海永,李丘鎬,孟琦錫 충남대학교 공업기술개발연구소 1974 工業技術開發硏究所論文集 Vol.1 No.1
We have measured tensile strength of the commercal P. P band and P. P band added with various additives before and after uv ray radiation. And the experiment appeared as following: The tensile strength of P. P band correspond with its thickness, and We have get from experiment that the efficient things for preventing reagent of the aging of P. P band are Iron oxide etc. The structure of P. P band added with various additives, which are compared with those of the commercial P. P band, were assigned to being determined by Infrared spectrum and we discussed on hydroperoxide, carbonyl group and C-H stretching reagion from I. R spectrum of P. P band.