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주영배,이내우,최재욱,강돈오,설수덕 한국안전학회 2001 한국안전학회지 Vol.16 No.3
Photopolymerization, the utilization of electromagnetic radiation(or light) as the energy source for polymerization of functional monomers, oligomers is the basis of important commercial processes with broad applicability, including photoimaging and RV curing of coatings and inks. The objective of this study is to investigate the characteristics of environmental fraternitive photopolymerization of methyl methacrylate(MMA). This work is the first step to continue further research about alkyl methacrylate. The experiment was done in aqueous solution under the influence of photo-initiator concentration(0.05-0.25mol/l), light intensity (5000-9000 ${\mu}J/cm^2$) and monomer concentration(2-6mol/l). Methyl methacrylate was polymerized to high conversion ratio using hydrogen peroxide($H_2O_2$) and the kinetics model we have obtained is as follows. $R_p=k_p[S]^{0.41}[M]^{0.62}[L]^{2.45} exp(53.64/RT$). The differential method of thermogravimetric analysis(Friedman method) was used to obtain value of activation energy on decomposition reaction. The average value of it res 45.4Kca1/mol.
하드웨어 인터록을 가지는 컴퓨터에서의 Load 명령어 스케줄링 기법
권오영(O-Young Kwon),주영배(Young-Bae Joo),한탁돈(Tack-Don Han) 한국정보과학회 1991 한국정보과학회 학술발표논문집 Vol.18 No.2
요즘 RISC(Reduced Instruction Set Computer) 프로세서는 내부 레지스터에서 레지스터로의 연산에 대해서는 Bypass Path logic 하드웨어로 레지스터간의 자료 충돌을 해결하고 있다. 그러나 메인 메모리로 부터 레지스터로 자료를 load할 때는 Bypass Path Logic이 제공되지 못하므로 인터록 방법으로 데이타가 완전히 주어질 때 까지 다음 명령어의 수행을 연기 시킨다. 이러한 연기 시간은 Load 명령어를 스케줄링 함으로써 제거될 수 있다. 따라서 본 논문에서는 하드웨어 인터록을 가지는 프로세서에서의 Load 명령어 스케줄링 알고리즘을 제안하고, 그 성능을 비교 평가한다.
이내우,최재욱,설수덕,주영배,강돈오 한국산업안전학회 2000 한국안전학회지 Vol.16 No.3
Photopolymerization, the utilization of electromagnetic radiation(or light) as the energy source for polymerization of functional monomers, oligomers is the basis of important commercial processes with broad applicability, including photoimaging and UV curing of coatings and inks. The objective of this study is to investigate the characteristics of environmental fratemitive photopolymerization of methyl methacrylate(MMA). This work is the first step to continue further research about alkyl methacrylate. The experiment was done in aqueous solution under the influence of photo-initiator concentration(0.05∼0.25㏖/ℓ), light intensity(5000∼9000 μJ/㎠) and monomer concentration(2∼6 ㏖/ℓ). Methyl methacrylate was polymerized to high conversion ratio using hydrogen peroxide(H₂O₂), and the kinetics model we have obtained is as follows. R_p=k_p[S]^(0.41)[M]^(0.62)[L]^(2.45)exp(53.64/RT). The differential method of thermogravimetric analysis (Friedman method) was used to obtain value of activation energy on decomposition reaction. The average value of it was 45.4Kcal/㏖.