• Review of KIISC
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• v.23 no.1
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• pp.61-67
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• 2013

개인정보보호법에 따라 기업에서는 현재 사용하고 있는 ERP시스템의 개인정보 암호화를 수행해야만 한다. 특히 국내 주요 기업에서 사용되고 있는 SAP 시스템의 DB암호화는 SAP솔루션의 특성을 고려하여 일반 DB암호화와는 다르게 접근해야 한다. 이 논문에서는 SAP DB의 특성과 대표적인 SAP DB암호화 방법에 대해 고찰해보고자 한다.

• Proceedings of the Korean Society of Crop Science Conference
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• 2001.05a
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• pp.246-247
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• 2001

• 한국약용작물학회:학술대회논문집
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• 2012.05a
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• pp.141-142
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• 2012

• 한국약용작물학회:학술대회논문집
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• 2012.05a
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• pp.143-144
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• 2012

• Proceedings of the Korean Society of Crop Science Conference
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• 2022.10a
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• pp.131-131
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• 2022

• Journal of The Korean Society of Grassland and Forage Science
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• v.36 no.4
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• pp.340-343
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• 2016

The present study investigated the effects of different seeding rates on growth characteristics and seed productivity of the "Kowinearly" cultivar of Italian ryegrass (Lolium multiflorum Lam.) in paddy fields. Sowing Kowinearly in paddy fields under growing rice at the rates of 20, 30, 40, and 50 kg/ha resulted in seed yields of 1.57, 1.92, 2.06, and 2.09 ton/ha, respectively. Seed yield of Kowinearly was the highest at a seeding rate of 50 kg/ha (p<0.05), at which the cultivar was able to survive in winter and the weed ratio was low. Under these conditions, most growth characteristics such as winter survival (85%), weed ratio (10%), stems per square meter (1,006) were superior than those sown at other seeding rates (p<0.05). In addition, it has been reported that the economic efficiency of the 50 kg/ha seeding rate was higher than that of the other seeding rates.

• Journal of The Korean Society of Grassland and Forage Science
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• v.40 no.2
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• pp.87-97
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• 2020

This experiment was carried out to study the effects of different environmental conditions and cultivation techniques on productivity of grasslands in central and southern area of Korea on 2017 and 2018. Average dry matter yield of grasslands at 10 actual production sites was 7,496 kg/ha. that was ranged from 4,652 to 13,292 kg/ha with least significant difference(LSD) of 1,577kg/ha between grasslands (p<0.05) on 2017. Average dry matter yield of grasslands at 10 actual production sites was 7,914 kg/ha. that was ranged from 3,927 to 12,372 kg/ha with LSD of 1,577kg/ha between grasslands(p<0.05) on 2018. Dry matter(DM) yield of grasslands have positive correlation with soil fertility (p<0.01) but not correlated with rainfall and air temperature among cultivation environments. And also DM yield of grasslands have positive correlation with grassland management techniques(p<0.01). These results suggest that practices of grassland management techniques and improvement of soil fertility are more important than cultivation environments by climate change for increasing the DM yield of grassland in central and southern area of Korea.

• Proceedings of the KSR Conference
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• 2011.10a
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• pp.2830-2837
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• 2011

In this paper, a flexible track modeling of turnout was developed and dynamic characteristics of turnout rails were analyzed when a vehicle passed through the turnout. The flexible track modeling is effective to the stiffness and durability design of turnout, because it can capture the deformation and dynamic stress due to the collision of between wheels and rails when the vehicle move to the tongue rail. Also, a more accurate running safety can be obtained by considering the interaction between wheel and rail deformation. Solid finite elements were used for variable cross-sections of rails and the variation of rubber stiffness was modeled. The proposed flexible track modeling in this paper was verified to be valid by comparison with the experiment of the turnout system.

• Korean Journal of Pharmacognosy
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• v.32 no.4 s.127
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• pp.322-326
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• 2001

For the quality control of Leonuri Herba, alkaloid compound, leonurine, was isolated from the MeOH extract of Leonurus sibiricus L. (Labiatae) and identified by the spectroscopic analysis. A quantitative analysis of leonurine using HPLC method showed that the average contents were $0.124{\pm}0.065%$ in 34 samples collected throughout the regions of Korea.

• Proceedings of the KIEE Conference
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• 2006.07a
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• pp.414-415
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• 2006

본 논문에서는 한국학술단체연합회 주관으로 수행한 학제간 학술 전문용어의 정비 및 표준화 연구과제 연구내용 중 용어의 표준화 및 순화 작업에서 외국어 용어의 국어화와 관련하여 발생한 문제점을 정리, 분석하고 전기분야를 사례 대상으로 하여 그 기준을 제안한다.