• Korean Journal of Veterinary Research
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• v.59 no.1
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• pp.43-45
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• 2019

To establish appropriate conditions for a disinfectant efficacy test at subzero temperatures, this study examined mixtures of frozen foot-and-mouth disease virus or avian influenza virus solutions and disinfectant diluents at $-5^{\circ}C$ and monitored temperature and freezing status of an anti-freezing diluent (AFD, 15% ethanol + 30% propylene glycol + 55% distilled water) over time at various subzero temperatures. Viral solutions and disinfectant diluents froze before the mixtures reached $-5^{\circ}C$, whereas the AFD was not frozen at $-30^{\circ}C$. The times taken for the AFD to reach -10, -20, -30, and $-40^{\circ}C$ from room temperature were 36, 39, 45, and 48 min, respectively.

• Journal of Microbiology and Biotechnology
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• v.28 no.1
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• pp.157-164
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• 2018

Francisella tularensis (FT), a highly infectious pathogen, is considered to be a potential biological weapon owing to the current lack of a human vaccine against it. Tul4 and FopA, both outer membrane proteins of FT, play an important role in the bacterium's immunogenicity. In the present study, we evaluated the immune response of mice - humanized with human CD34+ cells (hu-mice) - to a cocktail of recombinant Tul4 and FopA (rTul4 and rFopA), which were codon-optimized and expressed in Escherichia coli. Not only did the cocktail-immunized hu-mice produce a significant human immunoglobulin response, they also exhibited prolonged survival against an attenuated live vaccine strain as well as human T cells in the spleen. These results suggest that the cocktail of rTul4 and rFopA had successfully induced an immune response in the hu-mice, demonstrating the potential of this mouse model for use in the evaluation of FT vaccine candidates.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2007.11a
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• pp.45-46
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• 2007

• Proceedings of the KIPE Conference
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• 2016.07a
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• pp.341-342
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• 2016

본 논문에서는 고용량 및 고방전 리튬-이온($LiCoO_2$)원통형 (cylindrical)셀의 방전전류크기 및 SOC 구간에 따른 등가회로 파라미터의 특성을 비교 분석해보고 SOC 추정시 모델링 및 알고리즘 차별화의 필요성을 제시하고자 한다.

• Proceedings of the Korea Environmental Mutagen Society Conference
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• 2003.10a
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• pp.146-146
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• 2003

• Journal of applied mathematics & informatics
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• v.31 no.3_4
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• pp.343-352
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• 2013

In this paper, we give a formula of $(P+Q)^D$ under the conditions $P^2Q+QPQ=0$ and $P^3Q=0$. Then applying it to give some results of block matrix $M=(^A_C^B_D)$ (A and D are square matrices) with generalized Schur complement is zero under some conditions. Finally, numerical examples are given to illustrate our results.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.05a
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• pp.759-760
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• 2010

• Bulletin of the Korean Mathematical Society
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• v.57 no.2
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• pp.345-354
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• 2020

In this paper, we first give some representations for four new mock theta functions defined by Andrews [1] and Bringmann, Hikami and Lovejoy [5] using divisor sums. Then, some transformation and summation formulae for these functions and corresponding bilateral series are derived as special cases of ₂𝜓₂ series $${\sum\limits_{n=-{{\infty}}}^{{\infty}}}{\frac{(a,c;q)_n}{(b,d;q)_n}}z^n$$ and Ramanujan's sum $${\sum\limits_{n=-{{\infty}}}^{{\infty}}}{\frac{(a;q)_n}{(b;q)_n}}z^n$$.

• 한국초전도학회:학술대회논문집
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• v.13
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• pp.52-52
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• 2003

• Journal of the Korean Society for Precision Engineering
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• v.6 no.2
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• pp.77-87
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• 1989

This study is carried out to estimate the influence of cutting speed on the dynamic stability of a drilling machine. The theoretical stabilityu chart is constructed by using the measurd dynamic characteristics of the drilling machine. The critical cutting width and speed predicted from the stability chart show excellent agreements with those measured. Therefore it is confirmed that the analysis technique used in this study is useful for the prediction of the dynamic instability and improvement of the dynamic characteristics of drilling machines.