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이정윤,김성수,김장형,송왕철,Lee Jung-Yun,Kim Sung-Su,Kim Jang-Hyung,Song Wang-Cheol 한국정보통신학회 2006 한국정보통신학회논문지 Vol.10 No.5
High-rate WPAN 은 CAT의 Time Slot 할당 스케줄링 방법을 정의 하고 있지 않다. 이에 CAT의 Time Slot 할당 스케줄링 방법 에 관한 많은 연구가 진행 중이다. 하지만 지금까지의 연구들은 Air Interface의 에러 요소의 미적용이나 특정 DEV의 기아 현상 등의 단점 등을 내포하고 있다. 이에 본 논문에서는 채널의 상태에 따른 우회 경로를 제공하여 채널 타임 할당 스케줄링 방법의 단점을 극복하는 알고리즘을 제안한다. Wireless Personal Area Networks(WAPANs) are designed for short-range ad hoc connectivity among portable devices. They have gained much attention in the industry recently. One of them, High-rate WPAN, is designed to support multimedia traffic that requires high data rates. But, High-rate WPAN standards don't specify the time slot assignment scheduling method of CAT(Channel Time Allocation). So, there has been many studies regarding time slot assignment scheduling of CAT. However, present studies involve demerits about not applying various types of errors in air interlace or having a starvation of a specific DEV(data device). In this paper, we propose algorithms about supplying the intermediate channel assignment in order to avoid these demerits. This method will help other methods that use time slot assignment scheduling of CTA.
국내 육성 감자의 재분화와 형질전환 효율에 미치는 생장조절제의 조성 및 몇 가지 요소
이정윤,서효원,조지홍,이신우,윤한대,Yi, Jung-Yoon,Seo, Hyo-Won,Cho, Ji-Hong,Lee, Shin-Woo,Yun, Han-Dae 한국식물생명공학회 2003 식물생명공학회지 Vol.30 No.1
국내에서 육종된 감자 품종들에 대하여 재분화 및 형질전환효율에 영향을 미치는 여러 요인들을 조사하고 품종별 최적 조건을 규명하고자 하였다. 최근 육종된 5품종 '추백', '남서', '자심', '조풍'과 '조원'의 잎과 줄기 조직을 재료로 사용하여 배지 내 호르몬 조성별 신초형성률을 조사하였다. 신초형성률은 잎 조직의 경우 '조원'이 GA₃0.1 mg/L, Zeatin 2.0mg/L과 NAA 0.01 mg/L가 포함된 M5 배지에서 90%이상으로 가장 높은 반면 다른 공시품종은 20% 미만이었으며 줄기조직을 치상한 경우 '조풍'이 M5 배지에서 70%의 신초형성률을 나타내었으나. 다른 품종은 25% 이하의 신초형성률을 나타내어 품종별, 조직별로 큰 차이를 나타내었다. 감자의 형질전환 시 Agrobacterium 접종과정에서 75 μM의 acetosyringone을 처리한 경우 잎 조직은 '조원'이 87.9%, 줄기 조직은 '조풍'이 68.4%로 높은 형질전환효율을 나타내어 acetosyringone을 처리하지 않은 대조구에 비하여 1.5∼4.0배의 높은 형질전환효율을 나타냈다. The optimal condition of in vitro regeneration and transformation were investigated for newly bred potato varieties in Korea. Leaf and internodal stem tissues of 'Chubak', 'Namsuh', 'Jasim', 'Jopung' and 'Jowon' were used to investigate the influence of growth regulator on regeneration efficiency The effect of phenolic compound acetosyringone on gene transformation efficiency was also investigated. Leaf tissue of 'Jowon' and internodal stem tissues of 'Jopung' were showed high regeneration efficiency on M5 medium supplemented with 0.1 mg/L GA₃, 2.0 mg/L Zeatin and 0.01 mg/L NAA. The other three potato cultivars were showed low regeneration efficiency less than 25%. The effect of acetosyringone on Agrobacterium-mediated gene transformation with leaf and internodal stem tissues were noticeable. By adding the 75 μM of acetosyringone during the Agrobacterium innoculation, the transformation efficiency was increased up to 1.5∼4.0 fold compare to non-treated control. In case of 'Jowon' the transformation efficiency was 87.9% in leaf tissue and 'Jopung' was 68.4% in internodal stem tissues.
월악산국립공원 금수산 및 도락산 일대 삼림식생의 군락분포에 관한 연구
이정윤 ( Jung Yun Lee ),오장근 ( Jang Geun Oh ),정세훈 ( Se Hoon Jung ),김하송 ( Ha Song Kim ) 한국하천호수학회(구 한국육수학회) 2015 생태와 환경 Vol.48 No.2
Forest vegetation of Geumsusan (1,016.0 m) and Doraksan (964.4 m) in Woraksan National Park is classified into mountain forest vegetation. Mountain forest vegetation is subdivided into deciduous broadleaved forest, mountain valley forest, coniferous forest, riparian forest, afforestation and other vegetation. Including 77 communities of mountain forest vegetation and 5 communities of other vegetation, the total of 82 communities were researched; mountain forest vegetation classified by physiognomy classification are 37 communities deciduous broad-leaved forest, 16 communities of mountain valley forest, 8 communities of coniferous forests, 1 community of riparian forest, 15 afforestation and 5 other vegetation. As for the distribution rate for surveyed main communities, Quercus variabilis and Quercus mongolica communities account for 33.031 percent of deciduous broadleaved forest, Cornus controversa community takes up 29.142 percent of mountain valley forest, Pinus densiflora community holds 64.477 percent of mountain coniferous forest holds. In conclusion, minority species consisting of Quercus variabilis, Quercus mongolica, Pinus densiflora, Quercus serrata and Cornus controversa are distributed as dominant species of the uppermost part in a forest vegetation region in Woraksan National Park. In addition, because of vegetation succession and climate factors, numerous colonies formed by the two species are expected to be replaced by Quercus variabilis, Quercus mongolica, Cornus controversa and Fraxinus mandshurica which are climax species in the area.
이정윤 ( Jung Yun Lee ),박주희 ( Ju Hee Park ),최재호 ( Jae Ho Choi ),유종우 ( Chong Woo Yoo ),강석범 ( Sok Bom Kang ),서상수 ( Sang Soo Seo ),박상윤 ( Sang Yoon Park ) 대한산부인과학회 2008 Obstetrics & Gynecology Science Vol.51 No.9
Metastasis to the uterus from extrapelvic malignancy is rare. We experienced a patient who underwent a total gastrectomy and adjuvant chemotherapy due to gastric cancer and subsequently suffered from recurrence at the site of the uterine myoma. This is the first known case report of metastatic adenocarcinoma at uterine myoma from gastric cancer in Korea. We report this case with a brief review of literature.