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마케팅관점에서 B2C EC 웹 사이트 기능특성과 활용성과 간의 관련성에 대한 전략유형의 조절효과
한홍수 대한경영정보학회 2007 경영과 정보연구 Vol.21 No.-
The Moderating Effect of B2C EC Strategy on the Relationship between B2C EC Website Functionalities and Application Performance: Marketing Perspective
한홍수,최병정,한권규,Han, Hong-Soo,Choi, Byong-Jeong,Han, Kweon-Gyu 한국강구조학회 2011 韓國鋼構造學會 論文集 Vol.23 No.2
본 연구는 폭두께비(W/T)에 따른 중심압축하중을 받는 SC(Steel Plate-Concrete)구조의 압축거동 특성을 파악하는 것이 주목적이다. SC구조는 전단 연결재를 갖는 샌드위치 강판 사이에 콘크리트를 타설하여 시공하는 구조이다. SC구조의 실험체는 폭두께비(W/T)가 1.60와 3.56인 실험체로 구분하였다. 실험을 통하여 다음과 같은 결과를 얻었다. SC구조 실험체의 파괴양상은 최대압축강도에 도달하기 전에 스터드와 스터드 사이 강판이 국부좌굴하고 콘크리트는 일부 균열 및 박리현상이 나타났다. 또한 SC구조 실험체의 최대압축강도는 기존 설계기준식(AISC 2005, ACI318-05 및 KBC 2005)에 의한 압축강도보다 거의 크게 나타났다. SC구조 실험체의 폭두께비(W/T)가 증가할수록 강판에 의한 SC구조 실험체의 콘크리트 구속효과는 감소하는 것으로 나타났다. This study was conducted to understand the characteristics of the compression behavior of steel plate-concrete(SC) structures with a width-to-thickness ratio under axial loading. SC structures are structural systems where concrete is poured into steel plates to which headed stud bolts had been attached inside. The specimens were classified according to the two width-to-thickness (W/T) ratios of 1.60 and 3.56. Through these experiments, the following conclusions could be arrived at. The fracture pattern of the specimens showed that steel plate buckling occurred between the stud lines, and that a crack occurred at the concrete spalling from the sides of the concrete before the system reached the maximum compressive strength. The maximum compressive strength of the specimens was larger than that of the existing equations (AISC 2005, ACI 318-05, and KBC 2005). With the increased W/T ratio of the specimens, the strength of the concrete core was decreased to account for the confinement effects from the steel plates.
AMT의 통합수준과 제조성과의 연관성에 대한 조직구조의 역할
한홍수,노정구 대한경영정보학회 2000 경영과 정보연구 Vol.4 No.-
The basic purpose of this research is to analyse a relationship between the integration level of AMT(ILAMT) and manufacturing performance (cost, quality, flexibility, delivery) and to identify the moderating effects of organizational structure in the relationship. First research question(hypothesis 1) was to examine the relationship between ILAMT and manufacturing performance. We tested this question using simple regression analysis. All of the correlation were positive and significant at the level of 1%(two-tail test). Therefore, hypothesis 1 was supported by the results. It means that firms that have high ILAMT are to exhibit high level of all manufacturing performance(cost, flexibility, quality, delivery). Namely, It is that the integration of AMT can solve the trade-off among manufacturing performance. Second research question (hypothesis 2) was to identify the moderating effects of organizational structure on the relationship between ILAMT and manufacturing performance. we tested this question using moderated regression analysis. According to the results, hypothesis 2 was partially supported. In other words, formalization and decentralization were accepted, but complexity was rejected. It means that firms with high ILAMT and an organic organizational structure are more likely to exhibit high level of manufacturing performance. To the practitioners, this research provided the answer to what they ought to do make AMT work in their organizations. To increase the effectiveness of AMT, first of all, they should take notice of the importance of integrated use of AMT, and the implementation of AMT should take into consideration the characteristics of organizational structure manufacturing strategy so that the effect of AMT may be multiplied by using AMT.
B2C 기업의 IS역할 유형과 웹기반 전자상거래시스템 활용 간의 관계 분석
한홍수,노정구 대한경영정보학회 2005 경영과 정보연구 Vol.17 No.-
A research model based on the concept of a strategic grid was developed to examine the relationship between the role of information system(IS) and organizational use of the web-based electronic commerce(EC) system to achieve business competitiveness. A survey questionnair was sent eletronically to 141 internet shopping malls which sell physical goods direct to an individual end consumer and 125 usable responses were abtained. The results indicated that firms with the strategic views of IS make more use of web-based EC system than firms with support views of IS to achieve their bussiness goals.
한홍수,최상웅,정현식,노정구 대한경영정보학회 1998 경영과 정보연구 Vol.2 No.-
In this paper, we propose a new algorithm(N_BP) to be capable of overcoming limitations of the traditional backpropagation(O_BP). The N_BP is based on the method of conjugate gradients and calculates learning parameters through the line search which may be characterized by order statistics and golden section. Experimental results showed that the N_BP was definitely superior to the O_BP with and without a stochastic term in terms of accuracy and rate of convergence and might surmount the problem of local minima. Furthermore, they confirmed us that the stagnant phenomenon of learning in the O_BP resulted from the limitations of its algorithm in itself and that unessential approaches would never cured it of this phenomenon.