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아동의 또래지위와 우정의 질 및 친구간 갈등해결전략과의 관계
김표선,성영혜 숙명여자대학교 아동연구소 2004 兒童硏究 Vol.17 No.2
The purpose of this study is to find to relationship among the children's peer status, friendship quality, and conflict resolution strategie in children's friendship. The object of this study were 417 children in 5th grade of elementary school in Seoul. The measuring instruments used for study were peer nomination developed by Coie and Dodge(1983), Friendship Quality Scale developed by Lee and Koh(1999) and a Scale on Friendship Conflict Resolution Strategies (Rhee, Koh & Oh, 2000). The Collected data was analyzed by SPSSWIN statistical program. The frequency and percentage were calculated to investigate the general characteristics of the subjects. One-Way analysis was performed to find relationship among the children's peer status, friendship quality Mutiple Regression was performend to find relationship among the children's peer status, friendship quality, and conflict resolution strategie in children's friendship. The major results of this study are as follows, First, concerning about peer status and friendship quality, pouplar group have a positive friendship but, rejected group have a conflictive friendship. Second, while popular group used various strategy in conflict resolution, neglected group used evasive strategy. Third, concerning about relation between quality of friendship and frienship conflict resolution strategy, while the group which has high degree of emotional stability, intimacy and human desire used negotiation, cooperation and concession strategy, the group with has low degree of cooperation and pleasure of friendship used evasion and away strategy. Fourth, concerning the effect of friendship quality according to peer status which influence conflict resolution strategy between friendship, each popular, average, rejected and neglected group gas different quality of friendship and according the lower factor of friendship quality, each group has different conflict resolution strategy. Therefore I suggest that according to the peer status, arbitration program should be selected with propriety.
인장력을 받는 ㄱ형강 접합부의 감소계수 U값에 관한 연구
표영석,윤성호,나승욱,신영록,김보영,최문식 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.2(구조계)
This study focuses on the inspect of effective net area design code, according to limited state design criteria of steel structures, recently established in Korea, by an experiment on the joint of angle tension members on the ground. reduction factor. The methods of this study were to compare other study results on effective net area rupture mode and ultimate capacity, and to evaluate the propriety of the criteria design code. The result is that code in force limited state design criteria of steel structures and AISC-LRFD joint of angle tension members predicted load and experiment depend on ultimate capacity difference. Therefore, it is thought that there is need for supplemental test and study to effective net area of tension joint focused on bolted connection of angle.
표재수,이상우,김주현 경상대학교 농업생명과학연구원 2001 농업생명과학연구 Vol.35 No.-
우수한 당근 품종육성을 위한 기초자료를 얻고자, 육성 계통들 중에서 선발된 재료를 사용하여 어떤 형질이 根重에 크게 영향하는가를 확인코자 하였다. 2년에 걸쳐 봄, 가을 재배작형에 대해 시험한 결과를 상관 및 경로계수 분석을 통하여 根重에 미치는 여러 형질의 직ㆍ간접효과를 조사한 바, 봄, 가을, 재배 년도의 구분 없이 葉重과 全重의 직접효과가 매우 컸고, 나머지 형질들의 직접효과는 크지 않았다. 직접효과에 있어서도 全重은 정의 방향, 葉重은 부의 방향으로 달리 영향하는 것으로 나타났다. 나머지 형질들 중 葉重, 根首徑, 根徑, 葉長 등은 根重에 대한 직접효과는 크지 않았지만 全重을 통한 간접적 효과가 인정되었다. This study was conducted to clarify the direct and indirect effects of major morphological characters affecting root weight of carrot. The field experiment was carried out two times in 1991 and 1995. Root weight, number of leaf, leaf length, crown diameter, root diameter, root length, branch root, root cracking, bolting, uniformity, root-tail form, root shape, leaf weight, total weight, smoothness of root skin and hypertrophy of root were investigated. Major characters which had a direct effect on root weight were leaf weight and total weight. Total weight contributed positively towards root weight, but leaf weight had a negative effect. Number of leaves, leaf length, crown diameter, and root diameter did not have a direct influence on root weight, but they affected indirectly on root weight through increasing of total weight.
한국 상장기업의 IT자본과 노동 및 비IT자본의 대체성에 관한 연구
문성배,홍동표 한국은행 2004 經濟分析 Vol.10 No.2
본 연구는 2000-2002년까지의 한국 164개 상장기업에 대한 자료를 이용하여 IT자본과 노동 및 비IT자본간의 대체탄력성(elasticity of substitution)을 측정하였다. 특히 생산요소간 대체성의 척도로서 널리 쓰이고 있는 Allen 대체탄력성(Allen elasticity of substitution)의 문제점을 지적하고 Allen 대체탄력성 뿐만 아니라, 가격탄력성, Morishima 대체탄력성(Morishima elasticity of substitution), 그리고 shadow 대체탄력성(shadow elasticity of substitution)을 측정하였다. 본 연구의 추정결과에 따르면, 첫째, IT자본은 노동과 비IT자본에 대한 대체재(substitute)인 것으로 나타났으며, 우리나라 기업들의 경우 IT자본이 노동을 대체하는 정도보다 IT자본이 비IT자본을 대체하는 정도가 큰 것으로 나타났다. 또한 비제조업보다는 제조업에서, 정보화가 덜 된 기업들보다는 정보화가 많이 된 기업들에서 IT자본의 노동과 비IT자본에 대한 대체성이 강한 것으로 나타났다. This paper examines the substitutability of IT capital for other inputs, such as labor and non-IT capital, using the data on 164 Korean firms from the period of 2000-2002. Estimating various elasticities of substitution between IT capital and other inputs, we find that IT capital is a substitute for labor and non-IT capital. In particular, we find that IT capital is more substitutable for non-IT capital than for labor. We also find that the estimated elasticities of substitution between IT capital and other inputs are higher for manufacturing firms than for non-manufacturing firms, and higher for IT-intensive firms than for less-IT-intensive firms.
sol-gel법을 이용한 ?? 강유전체 박막의 성장과 특성
표윤숙,이장기,김상수 昌原大學校 基礎科學硏究所 1999 基礎科學硏究所論文集 Vol.11 No.-
We have developed a simple and rapid method for the synthesis of a precursor solution used in the production of ?? thin films of the layered-perovskite phase ??. Precursor solution preparation takes less than 30 min and involves the generation of two solutions : (a) Bi(O₂CMe)₃dissolved in pyridine and (b) ?? added to Sr(O₂CMe)₂and than solutbilized by HO₂CMe. After stirring separately for 10 min, these solutions are combined, stirred for an additional 10 min, and used without any further modifications. Films of the layered-perovskite phase were formed at temperatures as low as 700℃. Ferroelectric testing of SBN films, films, fired at 800℃ reveals standard hysteresis loop with no fatigue for up to 4×10 cycles.
강유전체 Pb(Zr_0.5₂ Ti_0.₄8)O₃박막의 성장 및 물리적 성질
표윤숙,김두회,이장기,김상수 昌原大學校 基礎科學硏究所 2000 基礎科學硏究所論文集 Vol.12 No.-
Ferroelectric Pb(Zr0.52Ti0.48)O3(PZT) thin films coated on Si(100), SiO2/Si(100), Pt/Ti/SiO2/Si(100) and ITO/glass substrates were perpared by sol-gel processing of metal alkoxide solutions and solvents. The XRD investigation shows that the tetragonal phase of polycrystalline PZT was formed by more than four times coating of the concentrated solution and by the heat treatment over 600℃. It was found by SEM that the thin film had an average thickness of about 900Å/coating and surfaces were crack-free and uniform. Capacitance and dielectric loss (tan δ) of PZT thin film were amounted to 0~30nF and 0.05∼20 in the region of 1 kHz ∼ 10 MHz respectively. From the hysteresis loops of PZT/Pt/Ti/SiO2/Si(100) and PZT/ITO/glass thin films, a remnant polarization of 0.2573 μC/cm2, 0.1873 μC/cm2 and a coercive field of 27.78 kV/cm, 24.44 kV/cm were obtained respectively. The band gap energy, refractive index, and extinction coefficient at λ =6235Å of the PZT thin films were 3.74 eV, 1.81 and 0.048 respectively.
성재표,강호근,박성수 釜山大學校生産技術硏究所 1995 生産技術硏究所論文集 Vol.49 No.-
본 연구는 철근 콘크리트 H.P. 쉘의 3차원 재료적 비선형 해석을 하기 위한 것이다. 콘크리트 요소는 3축 비선형 응력-변형률 거동, 균열, 파쇄 및 변형률 완화를 포함하는 3차원 16절점 고체 요소를 사용하고, 철근은 3절점 탄소성 트러스 요소를 사용한다. 거동 해석으로는 균열후 골재의 맞물림을 고려하는 유효 전단 계수를 도입하였으며, 수치 해를 얻기 위해 증분법을 사용하였다. 수치 예제로서 Lin의 철근 콘크리트 H.P. 쉘을 채택하여, 본 해석 결과와 비교하였다. This study presents the three-dimensional material nonlinear analysis of reinforced concrete H.P. shell. A concrete is idealized with three-dimensional 16-node solid element including triaxial nonlinear stress-strain behavior, cracking, crushing and strain softening; a steel with three-dimensional 3-node truss element including elastic-plastic behavior with strain hardening. The effective shear modules considering aggregate interlock after cracking and an incremental method is used to obtain a numerical solution. Numerical examples of Lin's reinforced concrete H.P. shell is selected to compare with the numerical results.
FRP방수용수지의 경화과정의 수축력 측정방법 개발과 수축력측정
표순주,田中亨二,정상진 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)
Unsaturated polyester resin for FRP waterproofing membranes have a disadvantage of shrinking in the process from liquid to solid state. It is fundamentally needed to estimate induced contraction stress of the resin for designing a good waterproofing membrane system. A new technique, in which the resin is poured in a floating frame on liquid of large specific gravity and induced contraction stress is measured, was proposed in the paper. The technique was applied for some resin samples and it was made clear that contraction stress mainly developed in a few ten hours and reached to the levels of 0.1-0.4N/㎣.
표현석,김성배,김상모,이창남,김상섭,김규석 대한건축학회 2004 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.24 No.1(구조계)
Connection is necessary element of every structure. Connection is important element to increase composition rate of composite beam. Welding joint has been used at composit beam-column connection. Welding joint's quality control is harder than high strength bolt's one. This study based on the experiments of 4 specimens by beam-column connection test. In this paper, we analyze behavior of composite beam-column connection through an experimental study and wish to present application possibility to TSC beam.