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박정수,배유미,정성재,Park, Jeong-Su,Bae, Yu-Mi,Jung, Sung-Jae 한국정보통신학회 2013 한국정보통신학회논문지 Vol.17 No.5
클라우드 서비스 공급자가 제공하는 클라우드 스토리지 시스템은 대량의 데이터 저장 및 클라우드 컴퓨팅 처리의 핵심구성요소이다. 구글, 유투브, 페이스북 등과 같은 대형 벤더에서도 클라우드 스토리지를 사용하여 태블릿, 스마트폰 등 이기종 장치에서 사진, 동영상, 문서등을 공유하며, 쉽고 빠르게 네트워크를 통해 데이터의 대량 전송과 접근이 가능하다. 이로 인해 전세계적으로 데이터 성장 발전과 함께 클라우드 스토리지가 비지니스모델로 새롭게 부각받고 있다. 클라우드 스토리지는 네트워크 스토리지의 새로운 서비스 개념이며 데이터 구성, 스토리지 가상화, 데이터 복제와 중복제거, 보안 등을 포함한 클라우드 컴퓨팅 핵심기술이다. 본 논문에서는 클라우드 스토리지에 대해 분석한다. Cloud storage system that cloud computing providers provides large amounts of data storage and processing of cloud computing is a key component. Large vendors (such as Facebook, YouTube, Google) in the mass sending of data through the network quickly and easily share photos, videos, documents, etc. from heterogeneous devices, such as tablets, smartphones, and the data that is stored in the cloud storage using was approached. At time, growth and development of the globally data, the cloud storage business model emerging is getting. Analysis new network storage cloud storage services concepts and technologies, including data manipulation, storage virtualization, data replication and duplication, security, cloud computing core.
박정수,김성호,이근득,이재민,Park, Jung-Su,Kim, Sung-Ho,Lee, Keun-Deuk,Lee, Jai-Min 한국군사과학기술학회 2005 한국군사과학기술학회지 Vol.8 No.4
To analyze a blast effect of developed explosives, three different kinds of aluminized tastable explosives and melted cast explosive TNT were used. Conventional explosive TNT was used as a reference. Each tested explosive charge of 340mm diameter spherical type was initiated at the charge center with DXD-65(${\sim}750g$) booster and RP-87 EBW detonator. Thirteen piezo type pressure sensors were located at a range from 4 to 50m away from the charge. From the blast wave profiles, we calculated a peak blast pressure and impulse of the explosion. The calculated pressures and in pulses were converted to TNT Equivalent Weight(TEW) factor by the scaling ]aw method. The average TEW factors based on the blast pressure of TX-01, TX-02, TX-03, TX-04 were 1.298, 1.05, 1.266, 1.274 and the average TEW factors based on impulse were 1.504, 1.686, 1.640, 1.679. From the results, we concluded that TEW factors based on blast pressure and based on impulse of aluminized explosives were superior to TNT. This results are owing to the high contents of aluminum in formulations.