• Journal of Veterinary Clinics
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• v.16 no.1
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• pp.37-41
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• 1999

The immunostimulating effects of egg white derivatives (EWD) on the phagocytic response of feline peripheral blood polymorphonuclear cells (PMN) as well as mono- nuclear cells (MNC) were examined. The phagocytic activity was analyzed by a flow cytometry system. The EWD showed directly an enhanced effect on the phagocytic response of MNC but not PMN. The phagocytic activity of MNC was enhanced by culture supernatant from MNC and PMN treated with EWD, respectively. Similarly, the phagocytic activity of PMN was enhanced by culture supernatant from MNC but not PMN treated with EWD. It was, therefore, indicated that the enhanced phagocytic activity of feline PMN could be mainly mediated by humoral factor(s) released from MNC treated with EWD. These results suggested that EWD could enhance the phagocytosis of feline peripheral blood phagocytes.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2010.06a
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• pp.267-267
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• 2010

The structural and electrical properties of microcrystalline silicon films were investigated by hot wire chemical vapor deposition(HWCVD) often called catalytic chemical vapor deposition(Cat-CVD). The Si microcrystalline phase is easily controlled by changing the rate of the silane concentration of $SiH_4$ to $H_2$ during deposition. The Structural property was observed by Raman and SEM. Photo-conductivity and dark conductivity, and photo-sensitivity were observed by Sunsimulator (AM 1.5 illumination). The film color was changed by the variation of silane concentration. HWCVD is useful for the formation of Si thin films for solar cell and needs further commercialized development for mass production.

• Proceedings of the Korean Society of Applied Pharmacology
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• 2003.11a
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• pp.66-66
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• 2003

Flavonoids are phenolic compounds widely distributed in wide variety of edible plants including leafy vegetables, fruits, beverages. Quercetin is one of bioflavonoid compounds and has anti-tumor effect by suppressing tumor growth in vitro and in vivo, including multiple biological effects by antioxidant and effective anti-inflammatory agent. The present study investigated whether quercetin can enhance antioxidant enzyme activities (glutathione peroxidase: GPX, superoxide dismutase : SOD, catalase: CAT) and intracellular reactive oxygen intermediate (ROI) levels in the presence of taurine on B16F10 murine melanoma cells. From this result, the antioxidant enzyme activities of quercetin in the presence of taurine was enhanced. In addition, the same treatments decreased intracellular reactive oxygen intermediate levels on B16F10 murine melanoma cells. Taken together, these results demonstrate that the antioxidant effect of quercetin can enhance in the presence of taurine and it might play an important role in anti-tumor effect.

• Research in Mathematical Education
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• v.9 no.3 s.23
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• pp.275-284
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• 2005

Tessellations are the pattern of iterations of geometric symmetry and translation. We can find them in the works of Escher who is the famous Dutch artist, and the American Indean life. Also, we can find the beauty of tessellations in the Korean traditional house door, Buddist temple architecture, palace's fence, etc. In the article, the figures of patterns we present are bird, fish, cat, pig, elephant, penguin, child and horse riding man, including Escher's, which are constructed using the computer geometric program, GSP (Geometer's Sketchpad). We want to talk about girl's disposition toward mathematics related to the figures. If they are supported by this kind of interesting figures constructed by their own hands, students will have more interest in learning geometric figures.

• Proceedings of the KIEE Conference
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• 2005.10c
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• pp.282-284
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• 2005

When an underground pipeline runs parallel with DC traction systems, it suffers from DC traction interference. Because the train is fed by the substation through the overhead wire and return current back to the substation via the rails. If these return rails are poorly insulated from earth, DC current leak into the earth and can be picked up by nearby pipeline. It may bring about large-scale accidents even in cathodically protected systems. In this paper we analyze the influence on lead wire method of distributed ICCP(impressed current cathodic protection) systems for mitigation of DC traction interference using the simulation software CatPro.

• Proceedings of the KIEE Conference
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• 2005.10c
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• pp.285-287
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• 2005

When an underground pipeline runs parallel with DC traction systems, it suffers from DC traction interference. Because the train is fed by the substation through the overhead wire and return current back to the substation via the rails. If these return rails are poorly insulated from earth, DC current leak into the earth and can be picked up by nearby pipeline. It may bring about large-scale accidents even in cathodically protected systems. In this paper we analyze the influence on parallel pipelines of distributed ICCP(impressed current cathodic protection) systems for mitigation of DC traction interference using the simulation software CatPro.

• Proceedings of the KACD Conference
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• 2003.11a
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• pp.549-550
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• 2003

Pulpal inflammation is a kind of neurogenic inflammation and it shows vascular changes such as vasodilation and changes in vascular leakage. Various kinds of neuropeptides including substance P (SP) are known to be involved in the pulpal inflammation. The purpose of this study was to investigate the influence of NK1 receptor antagonists on the pulpal blood flow (PBF) when applied iontophoretically through the dentinal cavity of the teeth in order to understand whether iontophoretic ally applied NK1 receptor antagonists can control the pulpal inflammation.(omitted)

• The Journal of Society for e-Business Studies
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• v.7 no.3
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• pp.61-73
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• 2002

Product catalog information is the most important factor to make customers purchase the product for various B2B or B2C businesses provided on the Internet. As catalog information differs from company by company, it cannot provide common criteria standard to customers to make decisions. Therefore, it is necessary to develop a platform independent system, which integrates incompatible data from each company' catalogs and manages its database. This paper describes the integrated E-catalog system made up DB module, catalog management module, and interface module. This system allows customers to view standardized product catalog information from different companies with real -time updates, and also provides extensibility, flexibility, and interoperability for the effective E-Business management.

• International Journal of Highway Engineering
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• v.14 no.6
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• pp.149-158
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• 2012

PURPOSES : This research is to evaluate the effects of zig-zag marking. METHODS : Based on the literature review, This research adopt Comparison Group method which was developed by Hauer. RESULTS : The findings are as follows. Effectiveness of treatment at all site 1.06, intersection 0.92, median bus lane 1.93, school zone 0.50, below 6-lane 0.48, above 6-lane 1.19, cat vs person 0.57, car vs car 1.36, car only 1.29. CONCLUSIONS : Though the analysis, it was founded that zig-zag marking on the small scale road(below 6-lane) and school zone contribute to reduce traffic accidents(effectiveness of the treatment : 0.50, 0.48). But the accidents at large scale road and median bus lane where installed zig-zag marking demonstrated negative result.(effectiveness of the treatment indicates exceed 1.0).

• Journal of the Korea Institute of Military Science and Technology
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• v.11 no.3
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• pp.30-39
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• 2008

An artificial vision aided NDGPS/INS system has been developed and tested in the dynamic environment of ground and flight vehicles to evaluate the overall system performance. The results show the significant advantages in position accuracy and situation awareness. Accuracy meets the CAT-I precision approach and landing using NDGPS/INS integration. Also we confirm the proposed system is effective enough to improve flight safety by using artificial vision. The system design, software algorithm, and flight test results are presented in details.