• Title/Summary/Keyword: 1001

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An Early-Maturing and High Grain Quality, Intermediate Breeding Rice Variety 'Jungmo1001' (벼 조생 고품질 중간모본 '중모1001')

  • Won, Yong-Jae;Jeon, Yong-Hee;Jung, Kuk-Hyun;Shin, Young-Seop;Kim, Yeon-Gyu;Choi, Im-Soo;Han, Hee-Seog;Oh, Myung-Kyu;Lee, Sang-Bok;Lee, Jeong-Il;Cho, Young-Chan;Choi, Yong-Hwan;Roh, Jae-Hwan;Ahn, Eok-Keun;Yoon, Young-Hwan
    • Korean Journal of Breeding Science
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    • v.43 no.6
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    • pp.606-610
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    • 2011
  • 'Jungmo1001' is an early maturing intermediate breeding line developed from a cross between Cheolweon52 and SR14694-57-4-2-1-3-2-2 by the rice breeding team of National Institute of Crop Science, Rural Development Administration (RDA) in 1994. 'Jungmo1001' has about 107 days duration from seeding to heading in mid-northern inland plain, southern alpine area and north-eastern coastal areas. It has about 73 cm in culm length with semi-erect plant type and good canopy architecture. This variety has 13 tillers per hill and 90 spikelets per panicle. Its 1,000 grain-weight of brown rice is 21.2 g which is less than 26.3 g of 'Odaebyeo'. Milled kernels are translucent with non-glutinous endosperm, low amylose content (18.1%) compared with 'Odaebyeo' palatability of cooked rice is very good. This variety shows strong resistance to cold treatment, lodging, premature heading and wilting. This variety shows moderately resistant to blast disease but susceptible to bacterial blight, stripe virus and insect pests. The milled rice yield performance of this variety is about 5.45 MT/ha by ordinary culture in local adaptability test for three years. This variety may be highly adaptable to the mid-northern inland plain, southern alpine area and north-eastern coastal areas of Korea.

Analysis of 766 keV Gamma Peak from NPP Environmental Samples (원전주변 환경시료의 766 keV 감마선에너지 피크에 대한 해석)

  • Kim, Wan;Lee, Hae-Young;Yang, He-Sun;Park, Hae-Soo;Kim, Bong-Kuk;Park, Hwan-Bae;Kim, Hong-Joo;Lee, Sang-Hoon
    • Journal of Radiation Protection and Research
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    • v.34 no.4
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    • pp.190-194
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    • 2009
  • Gamma spectral results for macroalgae samples taken from the environment of Ulchin nuclear power plants in Korea (east coast), showed 766 keV peaks, which were identified as $^{95}Nb$ by several research institutes. After the enhancement of liquid radioactive waste disposal facility at Ulchin NPP site, the $^{95}Nb$ amount in the liquid radioactive waste outflow has drastically reduced, but the expected reduction in $^{95}Nb$ specific activity from environmental samples did not actually show up on gamma spectroscopy. Detailed re-investigation revealed that along with 766 keV peak, other peaks (63, 92 and 1001 keV) from $^{234}Th-^{234}mPa$ decay series were also detected on spectroscopy, and that the measured half lives of the four peaks were very close to known half life of $^{234}Th-^{234}mPa$ decay series, which is 24.1 day. The measured gamma yield ratios of 766 keV peak to 1001 peak were very close to known ratio 0.35 for $^{234}mPa$. It is concluded that 766 keV peaks on gamma spectroscopy of Ulchin NPP environmental samples were mainly from $^{234}mPa$, which is one of naturally occurring radionuclides.

Consideration of Roman Character in KS × 1001 Code System for Information Interchange considered AMI/HDB-3 and HDLC FLAG (AMI/HDB-3 회선부호화 및 HDLC FLAG를 고려한 KS × 1001 정보 교환용 로마문자 부호체계고찰)

  • Hong, Wan-Pyo
    • The Journal of the Korea institute of electronic communication sciences
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    • v.8 no.7
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    • pp.1017-1023
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    • 2013
  • Datacommunications transmit the source codes that are coded in information devices, such as computer to the transmission line by means of the line coded signal. AMI method is applied to the line coding method to transmit the signal for long distance. The disadvantage of the AMI method is to loss the bit synchronization when consecutive binary bit '0' over 4ea is coming into line coder. The scrambling technique is used to overcome the problem. The HDB-3 scrambling method is used in Korea standard which standard in ITU-T. When the HDB-3 technology is used. the method should convert the consecutive bit '0' over 4ea to certain bits format. As a result, when there are many such kind of '0' bit stream in source codes, data transmission efficiency will be decreased to treat in line coder, etc. This paper is directed to study the Roman character code system in $KS{\times}1001$, Korea standard for information exchange code in datacommunication systems. Based on the study result, this paper proposed the maximum optimized Roman character code system. In the study, Character coding rule for $4{\times}4$bits and the statistical data for roman character using frequency were considered to simulate. The paper shows the result that when the proposed new roman character coding system is applied to use, the data transmission efficiency could be increased to about 134% compared to existing code system.