• Proceedings of the Materials Research Society of Korea Conference
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• 2007.11a
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• pp.54.1-54.1
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• 2007

• Proceedings of the Korea Concrete Institute Conference
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• 2005.11a
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• pp.567-570
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• 2005

This study aims to verify the relationship between the penetration depth and chemical resistance, which can demonstrates the performance of the applied surface penetration sealers.

• 제어로봇시스템학회:학술대회논문집
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• 2002.10a
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• pp.55.5-55
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• 2002

• 제어로봇시스템학회:학술대회논문집
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• 2002.10a
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• pp.67.2-67
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• 2002

$\textbullet$ Contents 1. Introduction $\textbullet$ Contents 2. Mathematical Modeling $\textbullet$ Contents 3. PID Parameter Application $\textbullet$ Contents 4. Simulations and Experiments $\textbullet$ Contents 5. Conclusions

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2009.06a
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• pp.855-856
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• 2009

• Proceedings of the Korean Vacuum Society Conference
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• 2008.02a
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• pp.279-279
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• 2008

• Journal of the Korean Chemical Society
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• v.33 no.3
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• pp.332-334
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• 1989

• Journal of the Chungcheong Mathematical Society
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• v.34 no.1
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• pp.93-107
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• 2021

We study the Gromov-Witten invariants of $\underbrace{{\mathbb{P}}^1\;{\times}\;{\mathbb{P}}^1\;{\times}\;{\ldots}\;{\times}\;{\mathbb{P}}^1}_{n}.$ Our main result is a proof of some vanishing conditions on the Gromov-Witten invariants of ℙ1 × ℙ1 × … × ℙ1 in all genera.

• Proceedings of the Korean Vacuum Society Conference
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• 2014.02a
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• pp.339.1-339.1
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• 2014

In this paper we studied the application of inter-poly dielectric as silicon dioxide-like film was deposited by the higher energy assisting deposition (HEAD) process the modified CCP process, which enables low temperature (LT) process and improving film density. In these experiments the relative hydrogen concentration of $SiO_2$-like films deposited on silicon substrate were analyzed by the secondary ion mass spectroscopy (SIMS) and it was shown that our lower hydrogenated oxide (LHO) film prepared by HEAD process with the precursor contained the siloxane species had lower hydrogen concentration, $8{\times}10{\cdot}^{22}cm{\cdot}^3$ than that of the commercial undoped silicon glass (USG) film ($1{\times}10{\cdot}^{21}cm{\cdot}^3$) prepared by the high density plasma-chemical vapor deposition (HDP-CVD). We consider that the LHO film deposited by HEAD process used as high performance material into Flash memory devices.

• Journal of The Korean Society of Grassland and Forage Science
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• v.42 no.3
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• pp.155-161
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• 2022

The aim of this study was to investigate the effect of isolated lactic acid bacteria (LAB) on the quality of high moisture rye silage. Rye forage (Secale cereale L.) was harvested at the heading stage (27.3% of dry matter (DM)) and cut into approximately 3-5 cm lengths. Then, the forage divided into 4 treatments with different inoculants: 1) No additives (CON); 2) Lactobacillus brevis strain 100D8 at a 1.2 × 10⁵ colony-forming unit (cfu)/g of fresh forage (LBR); 3) Leuconostoc holzapfelii strain 5H4 at a 1.0 × 10⁵ cfu/g of fresh forage (LHO); and 4) Mixture of LBR and LHO (1:1 ratio) applied at a 1.0 × 10⁵ cfu/g of fresh forage (MIX). About 3 kg of forage from each treatment was ensiled into a 20 L mini-bucket silo in quadruplicate for 100 days. After silo opening, silage was collected for analyses of chemical compositions, in vitro nutrient digestibilities, fermentation characteristics, and microbial enumerations. The CON silage had the highest concentrations of neutral detergent fiber and acid detergent fiber (p = 0.006; p = 0.008) and a lowest in vitro DM digestibility (p < 0.001). The pH was highest in CON silage, while lowest in LBR and MIX silages (p < 0.001). The concentrations of ammonia-N, lactate, and acetate were highest in LBR silage (p = 0.008; p < 0.001; p < 0.001). Propionate and butyrate concentrations were highest in CON silage (p = 0.004; p < 0.001). The LAB and yeast counts were higher in CON and LHO silages compare to LBR and MIX silages (p < 0.001). However, the mold did not detect in all treatments. Therefore, this study could conclude that L. brevis 100D8 and Leu. holzapfelii strain 5H4 can improve the digestibility and anti-fungal activity of high moisture rye silage.