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불산 농노변화에 따른 실리콘 초기 직접접합에 관한 연구
김창교,이주헌,이재홍,노일호,양성준 순천향대학교 부설 산업기술연구소 2001 순천향 산업기술연구소논문집 Vol.7 No.2
A new method using HF solution for direct bonding of two silicon wafers at room temperatyre was developed. The HF bonding was carried out with 1.5% HF solution with 1 Kgf/cm2. The characteristics of the bonded samples were measured under different bonding conditions according to HF concentrations and applied pressure to the samples. With an evaluation of the new bonding method, we confirmed that the method ensures enough strength, air tightness and optical property. An advantage of this method is simplicity of bonding process in comparison with a conventional thermal bonding method. The boned interface and void were analysis by SEM and RARM camera.
Kyo Won Lee,Chan Woo Cho,Nuri Lee,Gyu-Seong Choi,Yang Hyun Cho,Jong Man Kim,Choon Hyuck David Kwon,Jae-Won Joh 대한외과학회 2017 Annals of Surgical Treatment and Research(ASRT) Vol.93 No.3
Purpose: This study was designed to assess the outcome of the extracorporeal membrane oxygenation (ECMO) in liver transplantation (LT) recipients with refractory septic shock and predict the prognosis of those cases. Methods: From February 2005 to October 2012, ECMO was used in 8 cases of refractory septic shock. Laboratory values including lactate and total bilirubin level just before starting ECMO were obtained and sepsis-related organ failure assessment (SOFA) score, acute physiology and chronic health evaluation (APACH) II score and simplified acute physiology score (SAPS) 3 were calculated. Subsequent peak serum lactate and total bilirubin level, and SOFA score after 24 hours of starting ECMO were measured. Results: Comparisons were made between survivors and nonsurvivors. ECMO was weaned off successfully in 3 patients (37.5%) and 2 patients (25%) survived to hospital discharge. Clinical scores including SOFA, APACH II, and SAPS3 and laboratory results including lactate, total bilirubin and CRP were not significantly different between survivor and nonsurvivor groups. Lactate level and SOFA score tended to decrease after ECMO support in survivor group and total bilirubin and CRP level tended to increase in nonsurvivor group. Conclusion: Our findings suggest that the implantation of ECMO might be considered in highly selected LT recipients with refractory septic shock.
Yang, Jae E.,Kim, Jeong-Je,Shin, Young-Oh,Shin, Myung-Kyo,Park, Yong-Ha 한국응용생명화학회 1999 Journal of Applied Biological Chemistry (J. Appl. Vol.42 No.1
In search of a method to achieve sustainable agricultural practices, a trickling filter was employed for the piggery wastewater treatment, where rice straw was the support medium in place of more commonly used materials. The filtrate from the trickling filter were applied to a soil, on which orchard grass (Dactylic glomerata L.) was grown followed by amendment of the treated straw medium. Orchard grass was cut twice, and growth parameters and yields were measured. Soil chemical properties before and after harvesting orchard grass were analyzed. Development of the forage crop was greatly enhanced by the application of the filtrate in terms of fresh weight, dry weight, and the absorption of nutrients. Better growth and higher nutrient uptake were found in the second cutting of the orchard grass. Organic matter content, ionic intensity, exchangeable cations, and phosphate of the soil increased with the application of the filtrate. The relative high concentrations of salts in the piggery trickling filtrate, expressed in electrical conductivity and content of sodium, exerted no detrimental effect on the crop and soil.
Yang, Jae-Wook,Jung, Won-Kyo,Lee, Chang-Min,Yea, Sung Su,Choi, Yung Hyun,Kim, Gi-Young,Lee, Dae-Sung,Na, Giyoun,Park, Sae-Gwang,Seo, Su-Kil,Choi, Jung Sik,Lee, Young-Min,Park, Won Sun,Choi, Il-Whan Informa Healthcare USA, Inc. 2014 IMMUNOPHARMACOLOGY AND IMMUNOTOXICOLOGY Vol.36 No.5
<P><I>Context</I>: Expression of various inflammatory mediators in corneal fibroblasts contributes to corneal inflammation.</P><P><I>Objective</I>: The purpose of this study was to assess the possible effects of caffeic acid phenethyl ester (CAPE) on the expression of inflammatory mediators during an inflammatory response in human corneal fibroblasts.</P><P><I>Materials and methods</I>: The levels of interleukin (IL)-6, monocyte chemotactic protein (MCP)-1, and intercellular adhesion molecule-1 (ICAM-1) from IL-1β-exposed human corneal fibroblasts were measured with enzyme-linked immunosorbent assays (ELISA). The regulatory mechanisms of CAPE on cellular signaling pathways were examined using Western blot and electrophoretic mobility shift assays. A functional validation was carried out by evaluating the inhibitory effects of CAPE on neutrophil and monocyte migration <I>in vitro</I>.</P><P><I>Results</I>: CAPE inhibited the expression of IL-6, MCP-1 and ICAM-1 induced by the pro-inflammatory cytokine IL-1β in corneal fibroblasts. The activation of AKT and NF-κB by IL-1β was markedly inhibited by CAPE, whereas the activity of mitogen-activated protein kinases (MAPKs) was not affected. CAPE significantly suppressed the IL-1β-induced migration of differentiated (d)HL-60 and THP-1 cells.</P><P><I>Discussion</I>: These anti-inflammatory effects of CAPE may be expected to inhibit the infiltration of leukocytes into the corneal stroma <I>in vivo</I>.</P>