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RISS 인기검색어
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崔秉翼,尹畯相,安相根 公州大學校 地域開發硏究所 1995 地域開發硏究論叢 Vol.3 No.1
SummaryThis study was carried out to review the development polices implied to Korean rural area since the late 1940s. Policies such as Community Development(C. D), Pilot Village Construction Project, Saemaul Projects, Integrated Rural Development planning, and Village Reconstruction Project, and so on. Cases were also reviewed in several areas through literatures. Problems found and alternatives recommended are as follows: 1. Not enough time(several months ∼ a year) is spent for to set up master plans. 2. Little cooperation system is established among relevant organizations. 3. A pilot project with long time(3 ∼ 5 years) in planning is needed for theoretical and practical advancement of the study field.
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Ni(111) 고체표면에서 CO₂화학흡착에 관한 분자궤도론적연구
최상준,강혜진 인제대학교기초과학연구소 1999 자연과학 Vol.3 No.-
Ni(111)표면위의 CO₂흡착자리에 따른 흡착세기는 di-ο⑴, 1-fold, 3-fold,2-fold, π/μ,μ, 그리고 π-site순이다. di-ο⑴ 흡착자리에서는 <OCO가 148。인 찌그러진 CO₂분자구조를 가진다. 1-fold, 2-fold 및 3-fold의 경우는 CO₂분자중 산소의 한 끝이 고체표면과 결합하는 수직형태의 화학흡착이 일어남을 알았다. CO₂분자가 찌그럼짐은 2πu-obital과 섞임이 일어나기 때문이다. We calculated seven coordinated mode of binding site on Ni(111) surface; di-ο π,μ,π/μ, 1-fold, 2-fold, and 3-fold. Calculated binding energies are 2.31eV, 0.81eV, 1.50eV, 1.62eV, 2.27eV, 1.91eV, and 2.19eV, respectively. Then we have found that the binding energy is strongest at the di-ο(1) site. The adsorbed molecular CO2 of the di-ο(1) site on the Ni(111) surface is strong chemisorption and chemisorbed CO2 bends because of metal d-mixing with 2πu CO2 orbital.
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최상준 인제대학교 1985 仁濟論叢 Vol.1 No.1
To investigate the conformation of ATP and ATPi- the conformational total energies were calculated using an empirical potential function by varing all the Independent degree of freedom of them backbone. The empirical potential function was composed of electrostatic, polarization, nonbonding, torsion and hydrogen bond potential. For ATP and ATP- state, conformational total energies are -192.03 Kcal/mole and -176.20kca1/mo1e.
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Ni(111) 고체 표면에서 CO₂흡착과 해리 반응에 관한 이론적 연구
최상준,강혜진 인제대학교 1999 仁濟論叢 Vol.14 No.3
We have calculated CO2 adsorption and dissociation on a Ni(111) surface using the ASED-MO theory. We have found that the binding energy is strongest at di-σ(1) site and weakest at π -site. The binding energy on the next-favored 1-fold site is found to be somewhat less. For the dissociation of CO2, the OCO(1) angle is 145.7˚ on the Ni(111) surface. The activation energy is 0.56 eV in Ni(111) surface.
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시스-트란스 스틸벤의 분자내 퍼텐셜 장벽과 구조연구 : DFT-연구
조상준 인제대학교 2011 仁濟論叢 Vol.26 No.1
시스-트란스 스틸벤에 관해 분자구조, 분자내 퍼텐셜 장벽, 및 쌍극자 능률 등을 연구했다. 계산된 분자는 2,4-di(2-히드록시에톡시)-4-니트로스틸벤(3,4-DNS)와 2,5-(2-히드록시에톡시-4-니트로스틸벤(2,5-DNS) 구조이다. 분자 내 퍼텐셜 장벽, 쌍극자능률은 B3LYP/6-31G*와 B3LYP/6-311+G(d,p)로 계산했다. 시스와 트란스스틸벤 유도체와 역학적 함수도 계산했다. 계산된 시스-스틸벤 구조는 평면구조이고, 트란스-스틸벤 구조는 자전거 페달과 같은 운동 구조이다. T1형태에서 계산된 분자내 퍼텐셜장벽은 -0.01㎉/㏖, T2형태에서는 -0.54㎉/㏖이다. 이것은 자전거 페달과 같은 운동이 트란스 구조보다 더 안전함을 의미한다. 시스-스틸벤의 퍼텐셜 장벽은 -16.77㎉/㏖로 시스-2,4DNS에 대응하는 C1형태는 시스-3,4-DNS에 대응하는 C2에 비해 -6.13㎉/㏖이다. 시스-2,5-DNS에 대응하는 C3형태에 대해서 -17.60㎉/㏖이며, 시스형태는 입체적 장애 효과 때문에 더 안정하다. T2의 쌍극자는 10.34 Debye로서 계산된 분자형태 가운데 가장 크다. 반면에 C3의 쌍극자 능률은 4.75 Debye로서 가장 작다.
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Pt(100)와 Fe(100) 고체 표면에서 CO₂화학흡착에 관한 분자궤도론적 연구
최상준,박상문 인제대학교 1995 仁濟論叢 Vol.11 No.1
Comparing the adsorption properties on a Pt(100) with a Fe(100) surface, We consider six types of binding site;di-σ(1), di- σ(2), 4-fold, μ2-site, 1-fold and 2-fold. On a Pt(100) surface, Calculated binding energies are 1.14 eV, 0.81 eV, 0.27 eV, 0.03 eV and 1,38 eV, respectively. On a Fe(100) surface, Calculated binding energies are 3.02 eV, 3.20 eV, 2.57 eV, 1.71 eV, 2.51 eV and 2.27 eV, respectively. CO2 adsorbs on a Pt(100) to form three distinct adsorbed species; Physisorbed molecular CO2 for μ2-site is linear type, Chemisorbed molecuar CO2 for di-σ(1), di- σ(2) and 4-fold are bent, and for 1-fold, 2-fold are normal to surface plane. Adsorbed species on a Fe(100) are bent for di-σ(1), di- σ(2), 4-fold and μ2-site, and normal to surface for 1-fold and 2-fold. Particularly, ∠OCO bending angle for μ2-site on a Fe(100) is 246˚. It is found that the binding site for adsorbing CO2 on a Fe(100) surface are stronger chemisortion than Pt(100) surface, and chemisorbed CO2 bends because of metal d mixing with the 2πu→6a1 CO2 orbitals.
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방향성 응고된 이상형 스테인레스강에서 질소첨가가 미세조직에 미치는 영향
최병학,정병길,김진우,고석민,이재현,김상식,김성준 국립7개대학공동논문집간행위원회 2001 공업기술연구 Vol.1 No.-
Microstructures in the directionally solidified duplex stainless steels were investigated in order to understand the effect of nitrogen addition. It was found that the addition of nitrogen causes formation of fine precipitates in a matrix and segregation phases of nitrogen in the α/γ interface. Both the fine precipitates and the segregation phases were identified CrN(fcc, a=4.16A˚), which has the coherent phase relationship with bcc α matrix of (200) CrN // (0 1￣ 1) α and (1￣1￣ 1) CrN // ( 3￣ 2￣ 1) α.
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백금표면 위의 에틸렌에 관한 수소화 반응 메카니즘의 이론적 결정
최상준 인제대학교 1989 仁濟論叢 Vol.5 No.1
A (2×2) ethylidyne overlayer has been observed before and after ethylene hydrogenation to ethane over Pt(111) by Somorjai and coworker. In this ASED + MO study it is shown that ethylidyne can readily shift laterally to new site and open up space for ethylene to approach and be hydrogenation by the αH of surface ethylidene, which has been postulated to be a hydrogenation intermediate, is found to proceed with a higher activation energy than the surface platinium hydride, forming nonadsorbed ethyl radicals.
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비골골절 환자에 대한 정복 후 만족도에 대한 임상적 연구
정성훈,박정일,최 준,백세민 大韓成形外科學會 1994 Archives of Plastic Surgery Vol.21 No.5
In the evaluation of the result of reduction of fractured nasal bone, 'the degree of satisfaction of the patient' is the most important factor. There were several reports regarding 'patient's satisfaction'. However they are not related to individual factors such as age, sex, cause of injury, method of reduction, etc but are the 'overall' rate of satisfied patients. We tried to know what should we do in the individual steps in treating fractured nose to reduce the rate of dissatisfaction. We analysed 120 consecutive patients who underwent reduction in Inje University Sanggye Paik Hospital due to fractured nose from August of 1989 to March of 1993. The results were as followings ; 1) There were many dissatisfied cases in second and third decades(p=0.054). 2) In case of severe combined injury requiring general anesthesia, the rate of dissatisfaction was high(p=0.061). 3) In cases with septal fracture, the rate of dissatisfaction was high(p=0.042). 4) The operation should be performed before 24 hours after trauma or on the fifth, sixth, and seventh posttraumatic day because the rate of dissatisfaction was low(p=0.023) 5) To evaluate the effect of splinting, further study is necessary. We should follow-up for longer time and it is difficult to define criteria of satisfaction of individual persons. We think that further research can clerify the protocol in the treatment of nasal bone fractures.
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