• KOREAN JOURNAL OF CROP SCIENCE
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• v.56 no.2
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• pp.119-123
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• 2011

To use barley as a green manure crop, this study has been conducted in Suwon, Gyeonggi-do to establish the barley green manure (BGM)-rice cropping system with emphasis on soil incorporation date and BGM density. The nitrogen (N) contents of rye and barley, grass green manure crops, were 1.4~2.4% at early growth stage and decreased rapidly to 0.6~1.0% at late growth stage. The biomass of barley was 449 kg/l0a at heading stage (HS) and increased to 421 kg/10a at 10 days after heading stage (DAH), 473 kg/10a at 20 DAH. C/N ratio of BGM was the lowest 26.3 at HS. The N contents of BGM was in the range of 0.9~1.5%, the highest at HS and gradually decreased, and the output of N were 4.3-6.3 kg/10a. The total amount of nitrogen, phosphorous and potassium of BGM showed the highest level at 10 DAH. Culm length of rice was relatively longer as the BGM application time was delayed. The application of BGM into soil increased plant height of rice by 7.2~7.7 em as compared to the plants treated with commercial fertilizer at recommended rate. but panicle length of rice showed a similar tendency in both the soil-applied of BGM and commercial fertilizer. N contents of unhulled rice was the highest at HS of BGM and followed by 10 DAH of BGM and 20 DAH of BGM. This trend could also be seen in rice straw. The yield of rice in the soil-applied of BGM was 10~15% lower than in the soil-applied of commercial fertilizer. Based on this study, application of BGM made it possible to save 30~50% of application amount of nitrogen fertilizer for following crops.

• Journal of Korean Neurosurgical Society
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• v.64 no.6
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• pp.864-872
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• 2021

Objective : The aim of our study is to investigate the cytotoxic, antioxidant, and antimicrobial effects of newly synthesized boron compounds in U87MG glioblastoma cell treatment. Methods : We synthesized boron glycine monoester (BGM) and boron glycine diester (BGD) structures containing boron atoms and determined their cytotoxic activities on glioblastoma by the MTT method. The inhibitory concentration 50 (IC₅₀) value was calculated with GraphPad Prism 5.0 program. The IC₅₀ values were administered 48 hours on U87MG glioblastoma cell. Catalase (CAT), acid phosphatase (ACP) and alkaline phosphatase (ALP) enzyme activity, malondialdehyde (MDA), total glutathione (GSH), and total protein levels were detected using spectrophotometric methods. We determined the antimicrobial activities of BGM and BGD with the disc diffusion method. Results : After 48 hours of BGM and BGD application to U87MG glioblastoma cells, we found the IC₅₀ value as 6.6 mM and 26 mM, respectively. CAT and ACP enzyme activities were decreased in BGM and BGD groups. MDA which is a metabolite of lipid peroxidation was increased in both boron compounds groups. GSH level was reduced especially in BGD group. BGM and BGD have been found to be antimicrobial effects. Conclusion : Boron compounds, especially the BGM, can provide a new therapeutic approach for the treatment of glioblastoma with their anticancer, antioxidant, and antimicrobial effects.

• Proceedings of the Korea Information Processing Society Conference
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• 2019.10a
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• pp.986-989
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• 2019

인공지능에 대한 연구가 계속되고 있지만 음악, 미술, 문학 등 창의력과 예술성을 요구하는 부문에서는 인공지능을 적용하기 어렵다. 하지만 그중 음악 부문에 인공지능을 접목시켜 기존에 없던 곡을 작곡해보고자 한다. LSTM 기반의 모델을 ABC Notation 악보 데이터를 활용하여 학습시켜 사용자들이 음악적 지식 없이도 새로운 음악을 작곡할 수 있도록 딥러닝을 기반으로 한 BGM 음원 작곡 서비스를 제안한다.

• Bulletin of Korea Environmental Preservation Association
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• v.9 no.20
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• pp.27-28
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• 1987

• 한국HCI학회:학술대회논문집
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• 2008.02b
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• pp.417-423
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• 2008

It produced a movie to show spectators by interacting the existing famous drawings. It tried a new concept of binding a famous drawing with a person. It recognizes the color of a spectator and the drawings are changed. A spectator is reflected in the work of Marc Chagall. At the same time it is expressed with different BGM that meets the identity of a work. When a spectator moves, the motion is reflected on a work. But without a motion, a work is naturally shown. The four famous drawings are produced to response to Red, Green and Blue of a spectator according to color tracking.

• Proceedings of the Korea Contents Association Conference
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• 2018.05a
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• pp.95-96
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• 2018

높은 시청률을 기록하여 종영한 드라마는 드라마 자체뿐만 아니라 부가적으로 파생된 상품에서도 그 원인을 찾아볼 수 있다. 그 중에서 드라마에 삽입된 드라마 OST의 역할이 크게 작용하고 있다. 새롭게 한류드라마의 한 획을 근 "별에서 온 그대"에서 다양한 방법의 드라마 OST의 사용방법이 나타났는데 첫 번째로 가창곡보다 BGM의 사용이 많으면서, 삽입된 빈도수는 많고 시간은 짧았다. 두 번째로는 출연배우의 대표작을 활용한 장면연출과 작품에 나온 대표곡을 삽입하였다. 이는 전체적인 BGM 사용 형태를 유지하며 앞서 언급한 OST의 사용이 시청자들에게 드라마를 감상하는 새로운 방법으로 작용할 수 있음을 제시한다.

• Journal of Photoscience
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• v.6 no.3
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• pp.145-151
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• 1999

The use of O-carbamoyloximes as photobase generators was investigated. $\alpha$-Meth-ylbenzilydeneamino phenylcarbamate(2a) and $\alpha$-methyl benzilydeneamino cyclohexylcarbamate(2b) were prepared by the reaction of phenyl or cyclohexyl isocyanates with acetophenone oxime , respectively. Aniline, phenylhydrazine and N, N'-diphenylhydrazine were detected in thephotolysis of 2a and cyclohexylamine and cyclohexylhydrazine in the photolysis of 2b. A monomer having pendant carbamoyloxyimino groups (BGM) was prepared by the reaction fo methancryloyloxyethyl iocyanate with acetophenone oxime, and copolymerized with styrene. The BGM copolymer films turned insoluble on UV irradiation, and the degree of insolubilizationwas increased by post-baking. The photocrosslinking was thought to be due to coupling of resulting pendant aminyl radicals, and the thermal crosslinking was due to association of resulting amino and hydrazino groups by hydrogen bonding. The introduction of epoxy groups into polymer increased the degree of thermal crosslinking by post-baking.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2007.05a
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• pp.249-250
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• 2007

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2006.11a
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• pp.339-340
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• 2006

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.05a
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• pp.405-408
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• 2012

Recently, Smartphone takes center stage as the next generation game platform, so there's fierce competition between various companies which enter the mobile market. According to Smartphone market is wide, Smart phone App game sound is more widely. This study attempts to analyse the role of sound effects and BGM(background music) during game play or game development, and make a comparison between game play with and without Sound effects, so that to suggest the direction of development of the App game sound for Smartphone and to remind the importance of sound effects and emphasize the necessity of development of the professional game sound.