Nickel 觸媒에 의한 일산화탄소의 轉化反應에 관한 硏究

姜京熙 단국대학교 1988 論文集 Vol.22 No.-

The Conversion of Carbon monoxide to Carbon dioxde on Nickel Catalyst was investigated by Continuous reaction technique Nickel Catalyst were Prepared by the sream distillation pure Nickel hydroxide under Vacuum(Ca, 10^-2 Torr) at 290℃ for three hours and Characterized by means of X-ray diffraction and BET studies. The Nickel Catalyst is investigated by residual gas analysis for differential partial pressure of carbon monoxide and oxygen and temperature from 220℃ to 290℃. The Kinetic analysis of conversion data indicates the occurrence of first order, also molratio of p_O2/P_CO is 1.3. The activation energy of Nickel catalyst was 12.5Kcal/mole, also, equation of reaction Velocity is rate V=Ae^(-2.29×104/Rt) P^0.99_CO P^9.50_Po2

山地小流域의 雨水流出特性 (Kinematic wave法에 의한 流出解析) : Runoff characteristics in small mountain-basin (Runoff analysis of kinematic runoff model)

南官達 충북대학교 농업과학기술연구소 1986 農業科學硏究 Vol.4 No.-

In this paper, runoff analysis in small mountain area are discussed on the basis of observed data in the san sung basin. Outline of the results are summarized as follows. The peak runoff coefficients are 0.21 to 0.38 in the san sung basin. The value of equivalent roughness N(m sec.) defined in the kinematic wave method for inclined surface seems to be 1.0 in this basin and are close to the optimum coefficients. Runoff from watershed such as hills and fields is estimated by applying the kinematic runoff model. The results of runoff analysis show good coincidence with observed hydrograph and verify the usefulness of the criterion for estimation the value of equivalent roughness.

성직자 생활비에 대한 교회법적 고찰

남궁민 가톨릭대학교 사목연구소 1998 司牧硏究 Vol.6 No.-

SCM에 의해 제조된 금속기복합재료의 파괴인성 및 미끄럼마모 특성

이광영,박원조,허선철,신동인 경상대학교 해양산업연구소 2002 해양산업연구소보 Vol.15 No.-

AC4CH-based metal matrix composites with All_8B_40_33w reinforcement have been produced using squeeze casting method Metal matrix composite that is produced from matrix material AC4CH and inorganic binders Al_2O_3 and TiO_2 are added to the metal matrix composite for strength so binding among the whisker can take place. In this paper, an investigation was performed on frictional abrasion and the fracture toughness of AC4CH alloy reinforced with 20wt% aluminum borate whisker which contained a Al_20_3, TiO_2. The test of fracture toughness was using CT(half-size) specimen of thickness 12.5mm, width 25mm(ASTM E1820). To test for tribo a pin-on-disk machine and lubricant is used without paraffine 8.2CST at room temperature.

老人들의 公園訪問 滿足度와 生活滿足度 影響要因 分析

김경철,김교준 龍仁大學校 1997 용인대학교 논문집 Vol.13 No.-

The study aimed to investigate how the selected factors affected to park visit satisfaction and life satisfaction of senior citizens dwelling in metropolitan area. The sample size was 554 male and female seniors aged 60 and over, and the data were collected at three city parks during the month of October 1995. And the data were analyzed by Chi-square test and Logistic regression. The results were varied in each survey area, however, it indicated that the higher aged led to the more frequent park visit, and the higher park visit satisfaction(〈Table 5, 7〉). Analysis also showed that the selected determinants influenced park visit satisfaction and life satisfaction in varied degrees, however, park visit satisfaction was affected proportionately, by acquainting with new people, visit motivations, freqencies of visit, park activities, and duration of stay in park(〈Table 12〉) , and life satisfaction was influenced by park visit satisfaction, visit motivations, duration of stay in park, and acquainting with new people proportionately(〈Table 16〉).

선형 시스템의 모델 축약에 관한 연구

金慶哲,崔炯範 홍익대학교 산업기술연구소 1998 産業技術 Vol.8 No.-

The modelling of complex dynamic system is one of the most important subjects in engineering. A model is often too complicated to be used in real problems so approximation procedures are often used to achieve simpler models than the original one. The concepts of impulse energy approximation is introduced. The reduced model in obtained from the most significant pairs of alpha and beta parameters. There exists errors because from the most significant pairs of alpha and beta parameters. There exists errors because of the truncation. To overcome this problem an improved impulse energy technique is presented in the paper by appropriately selection alpha and beta parameters. There exists error because of the truncation. To overcome this problem an improved impulse energy technique is presented in paper by appropriately selecting alpha and beta parameters to retain more impulse response of the original system. This algorithm is programed using MATLAB language. A reduced-order model for the excitation system of power plants as an example study is considered This technique seems to be easy to perform and shows a good simulation results.

성공적 정부개혁을 위한 동인(動因)으로서의 조직문화

朴慶孝 한국외국어대학교 사회과학연구소 1999 社會科學論集 Vol.17 No.-

Ferrite 觸媒에 의한 一酸化炭素의 轉位反應에 관한 硏究

姜京熙 단국대학교 1986 論文集 Vol.20 No.-

This research has been Performed on the purpose to reveal the reaction order and to examine how temperature, mole ratio, activity energy and space velocity on the conversion in using Feerrite cata1yst to convert. CO-gas into CO_2. These catalyst were prepared by copreciption and characterized by means of X-rays diffraction and BET studies. The result of experiment on carbon-monoxide-gas conversion reaction reaction are as follows; a) the conversional reaction of carbon monoxide is the first order reaction. b) Reaction temperature was revealed as range from 553K to 573K. c) the mole ratio of carbon monoxide vs oxygen was showed with in the range of 1.34. d) The activity energy of stronger than of any others was revealed at copper ferrite catalyst.

Centering to the boys' high school team : 남자 고등부를 중심으로 Centering to the boy's high school team

남궁옥,원충희 公州大學校스포츠科學硏究所 1995 스포츠科學硏究所論文集 Vol.- No.9

29 Boy's High school Hockey teams took part in the 36th National Assortment Hockey Championship Series, the 74th national Athletic Meeting and '94 Springtime National man and women Hockey competition which were held in 1993. Investgating the number of shooting and success rate in 43 games, I came to conclusion as follows : 1) In whole shooting, the number of shots in the area D was 48.89%, in the area B was 27.91%, in the area C was 19.07%, in order of shootings (p<.10). Success rate of shooting was about 26% in each A, B and C area, and it was comparatively high. 2) In angle shooting, the area Ⅲ marked 62.78% which was the highest success rate.(P<.10). The area Ⅳ marked 20.37%, and the area Ⅱ 13.19%. The success rate of shooting in the area was Ⅱ, Ⅲ, Ⅳ 23.73%, 23.60%, 20.91% which suggests the balanced distribution. Especially the success rate of shooting in the area I was 50%. and it says that boldness in shooting is very necessary. 3) In many kinds of shootings, penalty corner shooting was 39.44%, assist by pass was 23.89%, loose ball was 14.63%(P< .50). The score of penalty corner shootings was 35.78% which marked the highest goals. In assist by pass, solo dribble, free hit and penalty corner except penalty stroke, the success rate of shooting was 23.75% on the average. 4) At the position of stick used in shooting, fore position was the highest frequeney in use. It was 91.1%(P< .01). One touch action shooting was 59.63% which marked the highest frequency in shooting(P< .05). The rate of score was 51.22%, but in the success rate of shooting, direct action shooting is higher 32.18% than that. 5) Hit and push shooting was 84.07% of the whole shootings. Push shooting was the best in the rate of score(P< .05). In the success rate of shooting, flick shooting(51.35%), was higher than push shooting (27.27%).

Fe_2O_3-Cr_2O_3配合觸媒을 使用한 水性가스 轉位反應에 관한 速度論的 硏究

姜京熙 단국대학교 교육대학원 1986 敎育論叢 Vol.2 No.-

The influence reactant gas composition on the water gas shift reaction over on iron ox de-chromium oxide mixing catalyst was studyed in the reactor. In the case first order kinetics on water gas shift reaction was absered with excess steam in the a low temperature range of 623K_673K. The optimum condition of water gas shift reaction are as follows; a. specific gravity of catalyst; 2.20gr/mole b. amount of mixing catalyst; 90 gr. c. amount of gas flow; 9.0ℓ/min d. reaction temperature; 623K. e. concentration of carbon monoxide; 120 torr. f. concentration of steam; 620 torr. g. mole fraction of carbon monoxide - steam; 1:5 h. heating - reaction equation of carbon monoxide - steam. CO + H_2O ↔ CO_2 + H_2 + 10,800Kcal.