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염영호,Yeom, Yeong-Ho 한국방위산업진흥회 1992 國防과 技術 Vol.- No.160
지휘 통제 자동화 체계는 군의 현대화를 위해서는 반드시 필요한 체계이며, 다양한 기능들이 복합된 매우 복잡한 체계이다 체계의 완전한 성능을 발휘하기 위해서는 다른 많은 체계들과 복합 연동 운용되어야 하는 특성이 있다. 이 모든 체계들은 기술 집약적 고가의 체계들이기 때문에 이 체계들을 동시에 개발, 구축하기는 곤란하므로 체계의 효용성, 경제성등을 분석하여 국가적 차원에서의 철저한 우선순위를 결정하여 구축해나가야 할 것이다
분체공학,유동층,고분자,재료(무기, 유기) : 대기압 플라즈마 처리를 통한 PU-g-PAAc Foam의 제조
염영호 ( Yeom Yeong Ho ),명성운 ( Myeong Seong Un ),최호석 ( Choe Ho Seog ) 한국화학공학회 2004 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.42 No.1
We successfully modified the surface of PU(Polyurethane) foam(10 PPI) through atmospheric pressure plasma treatment and subsequent grafting of AAc(acrylic acid). The plasma treatment can generate large amount of peroxides on the surface of PU foam and the peroxide groups act as initiators for further grafting of AAc in the monomer solution. To introduce large amount of peroxides on the surface of PU foam, we studied the effect of plasma rf-power and treatment time on the maximum grafting of AAc. Through this study, we found that the optimum rf-power was 100W and the optimum treatment time was 100sec. On the other hand, we also studied the effect of graft reaction conditions such as temperature, monomer concentration and reaction time on the change of grafting degree(GD). The GD increased with temperature and increased with reaction time before it leveled off at 3hr after reaction. At low concentration of AAc, the GD was very low but it showed the maximum at the monomer concentration between 60% and 70%. The surface of the modified PU foam was qualitatively and after plasma induced graft co-polymerization through photo and SEM analysis. Finally, we confirmed the immobilization of Lysozyme through the electrophoresis analysis of proteins, which were recovered by the PY-g-PAAc foam from egg white.
양송이배지로부터 분리한 Pantoea rodasil 와 Burkholderia stabilis의 인산가용화능 비교
박홍신,염영호,윤민호 한국버섯학회 2018 한국버섯학회지 Vol.16 No.1
This study investigated the synergistic effect of single inoculation and co-inoculation of phosphate-solubilizing bacteria (PSB) Pantoea rodasil LH-1and Burkholderia stabilis HS-7. Phosphate-solubilizing abilities of these strains were assessed by measuring phosphorus content in culture media that were singly inoculated or co-inoculated with these strains for 7 days. The co-inoculation of P. rodasil LH-1and B. stabilis HS-7 was found to release the highest content of soluble phosphorus (783.41 μg mL-1) into the medium, followed by single inoculation of B. stabilis HS-7B (743.90 μg mL-1) and P. rodasil LH-1 (736.59 μg mL-1). The highest pH reduction, organic acid production, and glucose consumption were also observed in the medium inoculated with both the strains, compared with that in the medium inoculated with the strain alone. Results of a plant growth promotion bioassay showed 7.7% and 15.5% higher leaf and root growth, respectively, in romaine lettuce coinoculated with P. rodasil LH-1and B. stabilis HS-7 than those inoculated with the strain alone. However, no significant difference was observed between single inoculation and co-inoculation of these strains with respect to phosphorus release and plant growth. Although the results of the present study did remarkdly not show the synergistic effect of phosphate solubilization by co-inoculation of the PSB strains examined, these results indicate that treatment with PSB exerts a beneficial effect on crop growth.