콘크리트의 균열폭이 중성화와 철근 부식에 미치는 영향

유제준 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2

The study aims to investigate the corrosion of steel in carbonated concrete. The parameters of the specimens are crack Widths and water cement ratio of concrete. The results indicate that the corrosion area of steel increase with increment in the widths of crack. The weight loss is no significant relationship with the crack widths. Although the corrosion depth is large in the position of a crack, there is no influence of crack widths.

류마티스 관절염 환자에서 심장을 침범한 속발성 유전분증 1예

채제건 대한순환기학회 2000 Korean Circulation Journal Vol.30 No.9

초·중등학생의 체육수업에 대한 「학습된 무기력」 매개요인 분석을 위한 이론적 고찰

이제옥,안양옥 한국학교체육학회 1999 한국학교 체육학회지 Vol.9 No.1

본 고의 목적은 체육수업에서 기인하는 '학습된 무기력'의 매개요인 분석 및 중재기법의 개발을 위해 현재까지 전개되어온 '학습된 무기력'에 대한 이론을 고찰하는데 있다. 이를 위해 '학습된 무기력'에 대한 연구의 역사와 선행 연구를 탐색해 보고, Martinek (1996)의 연구모형을 중심으로 '학습된 무기력'에 관한 이론을 정립하고자 하였다. '학습된 무기력'에 관한 연구는 Ritcher(1957)가 고전적 조건형성 실험으로 동물을 대상으로 한 것이 시초였다. 인간에 대한 '학습된 무기력'의 연구는 1971년부터 후속적으로 이루어졌다. Donald Hiroto(1974)는 Seligman의 동물실험과 비슷한 고전적 조건형성 실험을 인간에게 적용하여 비슷한 결과를 얻어내었다. 학습된 무기력의 교실환경에서의 연구는Nolen-Hokesma Girgus와 Seligman(1986)에 의하여 1986년에야 이루어졌다. 체육환경에서의 연구는 1990년대부터 Martinek(1998)을 중심으로한 일련의 학자들에 의해서 추진되었는데 대부분의 연구는 '학습된 무기력'의 현상을 살펴보는 연구와 '학습된 무기력’과 서투른 수행이 관련이 있다는 연구에 국한되었다. 이러한 연구는 개체가 어떤 시도에서 실패를 거듭하거나 상황을 통제할 능력을 결여했다는 것을 알면 유사한 상황이 왔을 때 시도를 포기한다는 결과를 나타내었다. Martinek(1996)는 학습된 무기력의 해석모형을 제안하였으며 해석모형의 요소로서 결과에 대한 통제 획득의 필요성, 통제력의 매개요인, 해석적 유형을 꼽았다. '학습된 무기력'에 대한 이론을 탐색한 결과 현재까지 체육수업에서의 '학습된 무기력'에 대한 연구는 소수에 불과하며 학습된 무기력의 현상을 파악하는데 국한되어 있음을 알 수 있다. 특히 국내에서의 이 방면에 대한 연구는 전무한 실정이다. 따라서 앞으로 체육수업에서의 학습된 무기력의 현상에 대한 연구뿐만 아니라 '학습된 무기력의 매개요인분석' 및 '학습된 무기력의 중재기법'에 대한 연구가 요청된다. The purpose of this study is to investigate the theory on 'Leamed Helplessness' which has been built up to this point for the development of the methods of control and the analysis of mediator of 'Leamed helplessness' caused in physical education. To serve this purpose, this study made a search for the history of other studies on 'Leamed Helplessness" and focused on establishing a theory on 'Leamed helplessness' based on the research model of Martinet(1996). The beginning of the study on 'Leamed Helplessness' is when Ritcher tested animals as the subjects of the experiment in his classical conditioning experiment. The study of 'Leamed Helplessness' on human has been continued subsequently since 1971. Donald Hiroto(1974) got similar results by applying the classical conditioning of experiment which was similar to Seligman's animal experiment to humans. The study of 'Leamed Helplessness' at a class-environment was not achieved until 1986 by Nolen-Hokesma, Girgus, and Seligman(1986). The study at the physical ac tivity environment was carried on by a series of scholars with Martinet as the central figure, but the most of the studies were limited in observing the phenomena of 'Leamed Helplessness' and the research which shows the relation between 'Leamed Helplessness' and poor performance. These studes indicate that when and individual keeps failing or learn that he is lack of controling ability, he gives up even to give it a try when in a similar situation. Martinek(1996) suggested a explanation model on 'Leamed helplessness' and he listed the necessity of acquiring control, the mediator of controling ability, and explaining pattern as the factors of the explanation model. As a result from investigating the theories of 'Leamed Helplessness' we can find out that the studies on 'Leamed Helplessness' in Physical Education are very few and they are limited in understanding the phenomena of 'Leamed helplessness'. The fact is that no study has been done previously in Korea. Therefore no only the study on the phenomena of 'Leamed Helplessness' but also the studies on analyzing the mediators of' Leamed Helplessnss' and the methods of control in 'Leamed Helplessness' are in need.

배양한 NG-108 세포에서 Haloperidol에 의한 c-fos mRNA의 발현

이제욱,채영규,임은정,양병환,조연규 漢陽大學校 精神健康硏究 2000 精神健康硏究 Vol.19 No.-

環境汚染 防除에 關한 硏究 (Ⅱ) : Plume Rise에 관하여 On Plume-Rise

任齊彬 全北大學校 1984 論文集 Vol.26 No.-

To determine the plume rise, the meteorological conditions(wind speed, atmospheric stability), the ind-ustrial parameters(stack height, exit velocity of gas, heat content of stack exit), and the position of stack, must be considered. There are many formulae of plume rise, such as concawe, Bosanquet, Briggs, Lucas, etc, but it is difficult to find the formula perfectly proper to each plume rise trajectory and to predict, By their for-mulae, the plume rise were calculated compaired with the observed date. And the results were following. 1. Simple plume rise formula is Δh=αㆍQ_H^b / u^a or Δh=dF^aㆍx^3^/^3 / u. (α,a,b:constant) 2. By the method of dimension analysis and theoritically, h=αㆍF^1^/^3 x^2^/^3 / u is obtained and got good result for observed data. 3. CONCAWE formula, optimized Rauch formula, and Thomas-montgomery formulae are the most prop-erly adequate to observed data. 4. Each proposed formula is obtained good correspondent with observed data at high wind speed.

느릅나무根 粘液에 관한 硏究(2) : 粘液과 粘質物의 糖分析에 관하여

任齎彬 全北大學校 1976 論文集 Vol.18 No.-

The root of Ulmus Coreana, Nakai extracts plenty mucilage in the water. And it was used for producing korean traditional hand-made paper sometimes. The mucilaginous solution decreases its viscosity by the influence of temperature and mixer agitating. The mucilaginous solution of the root of Ulmus Coreana, Nakai was precipitated by adding absolute ethyl alcohol to it. This precipitate means mucilage. I studied the chemical compoents of mucilaginous solution and mucilage of Ulmus Coreana, Nakai root by the method of paper chromatograpy. And I get the following results. 1) The mucilaginous solution of Abelmoschus manihot, Medic root contained rhamnose, arabinose glucose, galactose, xylose and uronic acids but the mucilaginous solution of the root, Ulmus coreana, Nakai contained glucose and uronic acid. 2) The hydrolysed mucilage of the root Ulmus Coreana, Nakai, contained rhamnose mannose, xylose, glucose, galactosee and uronic acid.

韓紙抄造用 粘液에 관한 硏究 : 第一報. 느릅나무根粘液의 糖類檢索 Part Ⅰ. Detection of Sugars in the Mucilage of Ulmus Coreana, Nakai Root

孫周煥,任齊彬 한국응용생명화학회 1982 Applied Biological Chemistry (Appl Biol Chem) Vol.25 No.3

느릅나무 粘液의 液性은 처음에는 中性이나 酸性으로 變한 다음 中性에 가까워지는 經時的 變化가 일어나며 粘液의 粘度低下는 黃蜀葵根 粘液 매우 緩慢하다. 또 이것은 遊離 還元糖을 含有하고 含量은 經時的으로 變化하여 처음에는 增加한 다음 急激하게 減少하며 糖含量과 粘度와의 사이에서 分明한 比例關係를 찾아볼 수는 없다. 糖類를 經詩的으로 分析한 結果 黃蜀葵根 粘液과는 달리 glucose 및 galacturonic acid等 2種의 糖類가 검출되었다. 그러나 粘質物의 加水分解 生成物에서 檢出된 糖類는 rhamnose, mannose, galactose, arabinose 그리고 galacturonic acid 等이며 黃蜀葵根 粘質物에서 檢出되었던 xylose는 檢出되지 아니하고 mannoserk 檢出되었다. The changes of hydrogen ton concentration, viscosity and free sugars in the water-soluble mucilage of Ulmus Coreana, Nakai root upon storage at 10℃ were studied, Hydrogen ion concentration in the mucilage changed pH7→pH4→pH6 or 7. The viscosity of mucilage decreased very slowly. The mucilage contained glucose and galacturonic acid. The hydrolyzed products of mucilage consisted of rhamnose, mannose, galactose, arabinose, xylose, glucose and galacturonic acid.

천연 제올라이트를 이용한 고농도의 칼슘이온 제거 : 이온교환속도 및 이온교환능 Kinetics and Isotherm

안봉규,오재일,윤석민,임남웅 대한상하수도학회 2003 상하수도학회지 Vol.17 No.1

The concentrated calcium removal from industrial wastewater by natural zeolite was examined to reduce inhibitory effects of those ions on the biological treatment in down-stream. It is well known that natural zeolite possesses good cation exchange capacity. Kinetic studies by using a batch-type methods demonstrated that the adopted particle size(1-2, 2-2.8, 2.8-4㎜) of zeolites showed similar exchange trends of calcium ions and showed relatively fast exchange reaction within 1 hour in spite of various zeolite dosages. The influence of the temperature on the ion-exchange capacity (isotherm) was examined. It was found that calcium exchange capacity(4.464㎎-Ca^2+/g-zeolite) at low temperature of 5℃ was double up to 9.225㎎-Ca^2+/g-zeolite at the range of 22-40℃. However, ion exchange efficiencies were similar at each condition of pH 6,7,8,10.

黃蜀葵根 粘液에 關한 硏究(第7報) : 粘液의 特性에 미치는 蛋白質의 影響 The influence of protein to the viscosity of the mucilage

溫斗炫,任齊彬 全北大學校 1980 論文集 Vol.22 No.-

The mucilaginous solution of Abelmoschus manihot, Medic root is important for production of korean hand-made paper. As the mucilaginous solution is unstable, the viscosity decreases according to the influence of temperature elevation, oxygen, carbon dioxide, and mechanical agitation. The study on the unstable viscosity of the mucilaginous solution has been studied to detect chemical components-the investigation of amino acids, reducing sugars, electrochemical properties, and molecular conformational transition of the mucilaginous solution. But lately the study on the certification of the relation between viscosity change and chemical component is failed. By this means, it is clear that the mucilaginous solution contains protein and the protein decomposed to amino acids according to the time elapses, and it is convinced that the analysis of protein is deeply connected with the viscosity decrease of the mucilaginous solution. The following experiment has been carried out by three steps:(1) the viscosity change of pure mucilage is compared with that of mucilaginous solution added various protease, at 25℃, PH 7 or 10, (2) total nitrogen in the mucilage and mucilaginous solution are detected by Kjeldahl method, and (3) the pure mucilage and the mucilage added protease, which are colored by 0.2% methylene blue, are observed by microscope. The results are as following. 1. When neutral or alkaline protease is added to the mucilage and mucilaginous solution, The protein decomposes, and the viscosity decreases notably in five minutes. 2. The mucilage and mucilaginous solution contain crude protein. By adding absolute ethylalcohol to the mucilaginous solution, the percipitated mucilage is obtained. And mucilage contains more quantity of protein than mucilaginous solution. 3. The thick lined network structures are observed by microscope in the state of high viscose mucilaginous solution, the thin lined large network structures are obtained by adding protease to the mucilaginous solution. The more time elapses, the thinner the structure becomes. And at last, when the relative viscosity became 2, the structure fades.

합성펩타이드를 이용한 영양배엽세포-특이 가토 다클론 항혈청의 제작

이희섭,오재민,김정중,문형배,김원신,이황희 원광대학교 생명공학연구소 1995 생명공학연구소보 Vol.3 No.1

Within the last few years, a different approach to generating protein-reactive antibodies has been developed that has several advantages over conventional immunization. This involves synthesizing short peptide sequences, coupling them to immunogenic carrier molecules, and immunizing animals with the conjugates. 3βHSD(3β-hydroxy-5-ene steroid dehydrogenase; EC 1.1.1.145) is the enzyme of the plasma membrane of human trophoblast and it's cDNA sequence was identified by Nickon et al(Molecular cloning and expression of human trophoblast antigen FDO161G and its identification as 3β-hydroxy-5-ene steroid dehydrogenase. J Reprod Fert 1991;149;156). For the production of trophoblast-specific antibody, we synthesized three oligopeptides that are epitope sites chosen from cDNA sequence of 3βHSD. Oligopetides were coupled with KLH(keyhole limpet hemocyanin) under 25% glutaraldehyde. The trophoblast-specific rabbit polyclonal antisera was produced by conventional methods. This antisera reacts with a 43kDa protein in human placental lysate by Western blotting analysis and The syncytiotrophoblasts and cytotrophoblasts from villi are stained positively with this antisera by immunohistochemistry. Villous trophoblasts were cultured in methionine-free media for 1 hour and [^(35)S]-Methionine for 24 hours. Media and cell lysate were immunoprecipitated with this antisera and 12% SDS-PAGE was performed. In fluorography, bend was not noted in media and 43kDa band was noted in medis and 43kDa band was noted in lysate. It was concluded that anti-3βHSD antibody produced by synthetic peptide was specific to trophoblasts and 3βHSD was membrane-bound protein of trophoblasts.