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김병섭,정영우,오병택,김수영,손석호,서지훈,배승조,이규철,강동재,Kim, B.S.,Jung, Y.W.,Oh, B.T.,Kim, S.Y.,Son, S.,Seo, J.H.,Bae, S.J.,Lee, G.C.,Kang, D.J. 한국전자통신연구원 2020 전자통신동향분석 Vol.35 No.3
The cloud computing industry has focused on establishing a cloud-based business environment for enterprises with efforts to convert using their own on-premise computing infrastructures to using cloud services. With these efforts, using cloud services has become natural, especially for the IT industry. The cloud computing industry is moving toward proliferation of the cloud computing environment into various evolving industries. Along with industrial trends, new technical trends such as edge computing and multi-cloud are emerging. These trends are expected to create new business models and develop related service ecosystems, providing new opportunities for service providers and new experiences for users. A mong those emerging technologies, multi-cloud technology is expected to realize unlimited global cloud computing resources by unifying cloud resources from multiple public cloud service providers. In this paper, we introduce the concept and related trends of multi-cloud technology. Subsequently, we analyze the main functionalities and several use cases of multi-cloud technology. Finally, we summarize the effects and usefulness of multi-cloud technology in the domestic cloud industry.
Optical Study of ZnO and Zn_(1-x)Mg_(x)O Thin Films Grown on Sapphire substrate
Lee, Hosun,Kang, T. D.,Park, W. I.,Yi, G. C. 경희대학교 자연과학종합연구원 2002 자연과학논문집 Vol.8 No.-
We grew ZnO and Zn_(1-x)MgxO thin films on sapphire substrate by metal-organic vapor epitaxy and measured pseudo-dielectric functions using variable angle spectroscopic ellipsometry. We analyzed the pseudo-dielectric functions using multi-layer model. The dielectric functions of ZnO and Zn_(1-x)Mg_(x)O were fitted using Holden's model dielectric function. We used anisotropic layer modeling for ZnO, whereas we approximated isotropic payer modeling for Zn_(1-x)Mg_(x)O alloys. In terms of the amplitude of dielectric function, ZnO thin film showed the best optical quality.