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하드웨어-소프트웨어 Co-Design 방법론을 이용한 내장형 무선검침 프로세서의 설계
홍인식,김귀우 순천향대학교 부설 산업기술연구소 1999 순천향 산업기술연구소논문집 Vol.5 No.2
In this paper, instruction level embedded processor is designed using software/hardware co-design methodology. In the previous VLSI design, h/w is firstly designed and next software is imported. But, software/hardware co-design is the meaning of concurrent and co-operative design with software/hardware. For the purpose of implementation, the wireless sensing-automatic answering system for remote control of remote place, is selected and prototype is designed with MCS8051 and assembly program. And improved design is implemented with the reduced instruction set of MCS8051 using software/hardware co - design methodology.
음향방출 신호처리에 의한 플라즈마용사코팅 피막부식재의 파손해석
김귀식,박경석,홍용의,현창해 濟州大學校 産業技術硏究所 2001 산업기술연구소논문집 Vol.12 No.1
This paper was to investigate of a adhesiveness of the plasma sprayed coating materials did a salt spray by acoustic emission method in tensile loading. The powders used for the coating were nickel aluminum composite powder Ni-4.5wt.%Al and titanium dioxide powder T_(i)O_(2). These powders were coated on a carbon steel S45C by plasma spray method. The salt solution was a 5% NaCl and the salt spray times were 2. 5 and 10 hours respectively. The salt solution penetrated into the surface of the substrate through pore of the coating layer built in the process of plasma spay. Corrosion productions formed on the surface of substrate. The adhesiveness between the substrate and the coating layer is weaken by corrosion and the exfoliation initiated chiefly at the corrosion surface of the substrate. The AE events and energy of the corroded coating specimens decreased as the salt spray times increased. The AE amplitudes increased at strain range of 6%-11%.
김귀식,손창환,홍용의,현창해 제주대학교 공과대학 첨단기술연구소 2003 尖端技術硏究所論文集 Vol.14 No.2
This paper is to investigate the adhesiveness between substrate and coating layer and the effect of corrosion by acoustic emission method in tensile loading. The used powders are Zn and Al. There are coated on brass alloy substrate, respectively. AE signals of Zn and A1 coating layer increase drastically in strain 2%. but that of Zn specimen have more than that of Al specimen. When the specimens axecuted under 3.5% NaCl solution for 500 hours, the salt solution penetrated into the surface of the substrate through pore of the coating layer. Corrosion production formed on the surface of substrate. The adhesiveness between coating layers is weaken by the polarization and corrosion itself. The AE events, count and energy of corroded coating specimens decreased in comparison with specimens without corrosion. Especially Zn specimen deoreased more than Al specimen in strain 2%.
AE에 의한 플라즈마 용사코팅 염수분무 부식재의 인장해석
김귀식,박경석,홍용의,현창해 제주대학교 공과대학 첨단기술연구소 2001 尖端技術硏究所論文集 Vol.12 No.2
Thermal spray coating is formed by a process in which melted particles flying with high speed towards substrate, then crash and spread on the substrate surface cooled and solidified in a very short time. Stacking of the particles makes coating. This paper was to investigate the adhesiveness of the plasma sprayed coating materials conducted 5% NaCl salt spray by acoustic emission method in tensile loadings. The powders used for the coating were nickel aluminum composite powder Ni-4.5wt.%Al and titanium dioxide powder TiO_2. The salt solution penetrated into the surface of the substrate through pore of the coating layer built in the process of plasma spray. Corrosion productions formed on the surface of substrate. The adhesiveness between the substrate and the coating layer is weaken by corrosion and the exfoliation initiated chiefly at the corrosion surface of the substrate. The AE events and energy of the corroded coating specimens decreased as the salt spray times increase.
김귀식,박경석,홍용의 濟州大學校 産業技術硏究所 1999 산업기술연구소논문집 Vol.10 No.2
In this paper. adhesiveness of plasma thermal sprayed coating steels is investigated through AE(acoustic emission) in loading a tensile. AE parameters used are event. count. energy and peak amplitude. The powders used for the coating are nickel aluminum composite powder Ni-4.5wt.%Al (BOND) and titanium dioxide powder Ti0_(2) (TOP). Test specimens are BOND, TOP and BT(BOND+TOP) that are sprayed on carbon steel(S45C) by plasma thermal spray. In the tensile testing. the process and Occurrence of the exfoliation of the sprayed coating layer can be estimated by AE. Characteristics of AE parameters, such as event, count. amplitude and energy. on the layer exfoliation have all the similar aspects. The exfoliation of BOND specimen occurs from 16% tensile strain to fracture point, TOP specimen does from 1% to 5%. and BT specimen does from 6% to 11%.
음향방출 신호처리에 의한 플라즈마용사코팅 피막부식재의 파손해석
김귀식,박경석,홍용의,현창해 제주대학교 산업기술연구소 2001 尖端技術硏究所論文集 Vol.12 No.1
This paper was to investigate of a adhesiveness of the plasma sprayed coating materials did a salt spray by acoustic emission method in tensile loading. The powders used for the coating were nickel aluminum composite powder Ni-4.5wt.%Al and titanium dioxide powder TiO2. These powders were coated on a carbon steel S45C by plasma spray method. The salt solution was a 5% NaCl and the salt spray times were 2, 5 and 10 hours respectively. The salt solution penetrated into the surface of the substrate through pore of the coating layer built in the process of plasma spay. Corrosion productions formed on the surface of substrate. The adhesiveness between the substrate and the coating layer is weaken by corrosion and the exfoliation initiated chiefly at the corrosion surface of the substrate. The AE events and energy of the corroded coating specimens decreased as the salt spray times increased. The AE amplitudes increased at strain range of 6%-11%.
김귀식,박경석,홍용의 제주대학교 산업기술연구소 1999 尖端技術硏究所論文集 Vol.10 No.2
In this paper, adhesiveness of plasma thermal sprayed coating steels is investigated through AE(acoustic emission) in loading a tensile. AE parameters used are event, count, energy and peak amplitude. The powders used for the coating are nickel aluminum composite powder Ni-4.5wt.%Al (BOND ) and titanium dioxide powder TiO2 (TOP). Test specimens are BOND, TOP and BT(BOND + TOP) that are sprayed on carbon steel(S45C) by plasma thermal spray. In the tensile testing, the process and occurrence of the exfoliation of the sprayed coating layer can be estimated by AE. Characteristics of AE parameters, such as event, count, amplitude and energy, on the layer exfoliation have all the similar aspects. The exfoliation of BOND specimen occurs from 16% tensile strain to fracture point, TOP specimen does from 1% to 5%, and BT specimen does from 6% to 11%.
Hong-Lin Xu,Guang-Hong Chen,Yu-Ting Wu,Ling-Peng Xie,Zhang-Bin Tan,Bin Liu,Hui-Jie Fan,Hong-Mei Chen,Gui-Qiong Huang,Min Liu,Ying-Chun Zhou 고려인삼학회 2022 Journal of Ginseng Research Vol.46 No.1
Background: Panax ginseng Meyer (P. ginseng), a herb distributed in Korea, China and Japan, exerts benefits on diverse inflammatory conditions. However, the underlying mechanism and active ingredients remains largely unclear. Herein, we aimed to explore the active ingredients of P. ginseng against inflammation and elucidate underlying mechanisms. Methods: Inflammation model was constructed by lipopolysaccharide (LPS) in C57BL/6 mice and RAW264.7 macrophages. Molecular docking, molecular dynamics, surface plasmon resonance imaging (SPRi) and immunofluorescence were utilized to predict active component. Results: P. ginseng significantly inhibited LPS-induced lung injury and the expression of proinflammatory factors, including TNF-a, IL-6 and IL-1b. Additionally, P. ginseng blocked fluorescence-labeled LPS (LPS488) binding to the membranes of RAW264.7 macrophages, the phosphorylation of nuclear factor-kB (NF-kB) and mitogen-activated protein kinases (MAPKs). Furthermore, molecular docking demonstrated that ginsenoside Ro (GRo) docked into the LPS binding site of toll like receptor 4 (TLR4)/myeloid differentiation factor 2 (MD2) complex. Molecular dynamic simulations showed that the MD2-GRo binding conformation was stable. SPRi demonstrated an excellent interaction between TLR4/MD2 complex and GRo (KD value of 1.16 × 10<SUP>-9</SUP> M). GRo significantly inhibited LPS488 binding to cell membranes. Further studies showed that GRo markedly suppressed LPS-triggered lung injury, the transcription and secretion levels of TNF-α, IL-6 and IL-1β. Moreover, the phosphorylation of NF-kB and MAPKs as well as the p65 subunit nuclear translocation were inhibited by GRo dose-dependently. Conclusion: Our results suggest that GRo exerts anti-inflammation actions by direct inhibition of TLR4 signaling pathway.