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조영일 수원대학교 기초과학연구소 1993 基礎科學論文集 Vol.2 No.-
VLIW architectures are reduced instruction set machines with a large number of parallel, pipelined functional unit but only a single thread of control. But, traditional compilers could not find enough parallelism in scientific programs to utilize a VLIW effectively. This paper proposes a new compiling technique which schedules instructions beyond a basic block to enhance the parallelism. The compiler translates scientific programs into highly parallel machine code for VLIWs, achieving order-of-magnitude-speed-ups over traditional scalar architectures.
서종철,한학수,박성국,정현수,조영일 연세대학교 산업기술연구소 1996 논문집 Vol.28 No.2
The object of this study is to demonstrate that residual stress behaviors in different polyimide thin films depend on the degree of chain rigidity according th to polyimide backbone structure, curing history and precursor type. The comparison of the residual stress indicates that residual stress of a polyimide thin film is primarily dependent on the polymer chain rigidity, fully rodike PMDA-PDA, semi-flexible PMDA-ODA and flexible BTDA-ODA polymides. The higher polymer chain rigidity of polyimide thin films shows the lower residual stress in tension on the Si wafer substrate. Among the polyimide thin films studied here, BTDA-ODA polyimide exhibit the highest overall residual stress in spite of relatively low transition temperature.
A Study on Creation of Marine Safety Culture in Korea
조영일,최재선 한국해양수산개발원 2015 해양정책연구 Vol.30 No.1
After the accident of Sewol-ho, the interest in marine safety has been largely increased. This study aims to give insight into the establishment of marine safety culture in Korea, suggesting its definition, directions and strategies as well as relevant system refinement issues aimed at strengthening activities to promote marine safety culture through the Marine Safety Campaign Program (MSCP). The elements and definition of marine safety culture have been presented based on the concept of safety culture and by incorporating the recent trends in ocean-related areas as well as setting the directions for marine safety culture. Marine safety culture is the aggregation of all knowledge, principles and acts of marine safety activities–which draw much attention of the time–led by the industry, government, academia, and research institutes as well as by the general public. Also, the scope and definition of marine accidents has been expanded to marine safety accidents that include boating accidents, port accidents, coastal accidents, natural disasters, crew accidents, marine disaster, pirate accidents and maritime terrorism. In order to establish marine safety culture, this study has proposed designation of a marine safety day, development of a marine safety culture index (MSCI), selection of pilot project cities for marine safety, development of marine safety education programs, building of an marine safety experience center, opening of a marine safety broadcasting station and a development of marine safety culture contents.
조영일 수원대학교 자연과학연구소 1998 자연과학논문집 Vol.1 No.-
Value prediction attempts to eliminate true-data dependencies by dynamically predicting the outcome values of instructions and executing true-data dependent instructions based on that prediction. Any single predictor can't get high prediction accuracies for all instructions. For some instructions, last-value predictor gives good predictor accuracy. On the other hand, for other instructions, stride-based value predictor gives good predictor accuracy. This paper presents a hybrid value predictor which reduces the hardware cost, compared to stride-based value predictor, and improves the predictor accuracy, compared to last-value predictor.
고급 마이크로 프로그래밍 언어 compiler에서의 레지스터 할당 알고리즘
趙榮一 수원대학교 산업기술연구소 1989 산업기술연구소논문집 Vol.4 No.-
This paper proposes an efficient register allocation algorithm which allocates each symbolic variable into target machine's register. The algorithm can minimizes the number of inserted extra Store/Load instructions. The process of algorithm analyzes data flow of microprogram, inserts Store/Load instructions, and determines the compatible variable group. And then the register move and assignment procedure is processed. This proposed algorithm is implemented with C language on VAX11/750 computer.