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조정일(Jung-Il Cho),박성한(Sung-Han Park),이강섭(Gang-Seob Lee),김수민(Su-Min Kim),임수미(Su-Mi Lim),김연식(Youn-Shic Kim),박수철(Soo-Chul Park) 한국육종학회 2020 한국육종학회지 Vol.52 No.S
The global area of GM Crops continued to grow in 2018 and reached 191.7 million hectares. Twenty-six countries approved biotech crops for planting and an additional 44 countries (18 + 26 EU countries) officially imported biotech crops for food, feed, and processing, meaning that biotech crops are now commonly accepted in those countries. First-generation GM seed is being commercialized by global agricultural companies in advanced countries such as the United States and parts of Europe. The fact that more than 90% of first-generation GM seeds, which have been commercialized for 20 years, are both insect resistant and herbicide resistant proves that they continue to have an effect on improving agricultural productivity and increasing farmers incomes. As the effectiveness of GM crops has been proven and technology has been developed, the GM crop development trend has recently changed. In other words, it has moved from being producer-oriented to benefiting both farmers and consumers. In Korea, the National Program for GM Crops (NCGC), one of the Next-Generation BioGreen 21 Programs organized by Rural Development Administration (RDA), was established in 2011 to develop biotech crops that will be used in the future to solve our agricultural problems. To accomplish this mission, the NCGC carried out the exploration of useful functional genes, the development of qualified events, and the safety assessment of developed events. Here, we introduce the current status of GM crop development and commercialization in the world and in Korea.
부분 중계기 협력 다중화 기술에서 동적 최적 시간 할당 기술
조정일(Jung-il Cho),권양수(Yang-soo Kwon),김남리(Nam-ri Kim),정재학(Jae-hak Chung) 한국통신학회 2009 韓國通信學會論文誌 Vol.34 No.10C
본 논문에서는 부분 중계기 협력 다중화 기술에서 중계기의 위치에 따른 최적의 시스템 용량을 얻기 위한 동적 최적 시간 할당 기법을 제안하였다. 제안된 기법은 중계기 시스템의 전송 조건식을 추가함으로써 중계기의 유동적인 위치에 따라 최대의 시스템 용량을 가지도록 각 시간 구간의 길이를 최적화하였다. 전산 모의실험을 통해 균일하게 고정된 시간 할당을 가지는 기존의 부분 중계기 협력 다중화 기술에 비해 향상된 시스템 용량을 얻을 수 있었다. We propose a dynamic time allocation method in cooperative multiplexing with partial relaying system. This method uses a linear programming and considers protocol that is based on relaying of partial information bits followed by cooperative multiplexing. In this protocol, regardless of the location of relay, the allocation time for each transmission time slots are constant. Using a dynamic time allocation method with considering the location of relay, we can find optimal transmission time slots, and show that the system capacity is optimized.
참다래 꽃썩음병에 대한 방선균 #110의 분리, 동정 및 생물적 방제효과
조정일(Jung Il Cho),조자용(Ja Yong Cho),박용서(Yong Seo Park),양승렬(Seung Yul Yang),허북구(Buk Gu Heo) 한국원예학회 2007 원예과학기술지 Vol.25 No.3
We have isolated two hundred and fifty bacterial strains and examined into the antagonistic activity against Pseudomonas syringae pv. syringae causing the pathogenic bacterial blossom blight of kiwifruits. We screened and isolated the best antagonistic strain designated as the strain #110 showing 73.0% antagonistic activity against P. pv. syringae. The strain #110 was identified as Streptomyces sp. #110 based on its morphological, physiological, biochemical and chemotaxonomic characteristics. By the bacterialization of cultural broth and heated filtrates of cultural broth, Streptomyces sp. #110 showed almost all of antagonistic activity against the bacterial blossom blight.