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나영왕(Young-Wang Na),정호정(Ho Jeong Jeong),정재완(Jae Woan Cheong),최효길(Hyo Gil Choi),전흥용(Heung Young Jeon),김도선(Do Sun Kim),노일래(Il Rae Rho) 한국원예학회 2013 원예과학기술지 Vol.31 No.5
‘대왕’ 품종은 농촌진흥청 국립원예특작과학원에서 2010년도 육성한 촉성재배용 신품종이다. 맛과 향이 우수하면서 경도가 강한 품종을 육성하기 위해 2006년 고당도 품종인 ‘매향’과 고당도 품종인 ‘원교3111호’를 교잡하여 육성하였다. ‘대왕’ 품종의 주요 특성을 보면 초형이 직립형이고 초세는 매우 강하다. 화방당 꽃 수는 12-15개 정도로 적고 휴면타파를 위한 저온요구시간은 50-100시간 정도로 촉성재 배용으로 적합한 품종이다. 과형은 원추형이고 과색은 연적색이며 평균과중은 16-17g 내외의 중대과형 품종이다. 과실의 당도는 11.1°Brix, 산도는 0.39%로 당산비가 적절하여 식미가 좋으며 특히 과육 내 육질이 치밀하여 씹는 맛이 우수하다. 또한 경도가 18.2g・mm<SUP>-2</SUP>로 아키히메의 10.3g・mm<SUP>-2</SUP>보다 7.9g・mm-2이 더 높아 봄철 늦게까지 수확이 가능하다. 그리고 상품과율은 대조품종인 ‘아키히메’보다 높았으나 전체적인 수량은 유의적인 차이를 보이지 않았다. 그러나 탄저병과 고온에 다소 약한 경향이 있다. A new cultivar ‘Daewang’ strawberry was developed by the National Institute of Horticultural & Herbal Science for forcing culture in 2010. The cultivar ‘Daewang’ was originated from the cross between ‘Maehyang’, a high firmness cultivar and ‘Wongyo 3111’, a high sugar content in 2006. The cultivar shows erect plant type, vigorous growth habit, early flower bud differentiation with 12-15 flowers per cluster from planting on healthy nursery. Fruits of ‘Daewang’ are conical type having a bright red skin color, and 16-17 g in an average weight. ‘Daewang’ is suitable for forcing culture as time required for dormancy breaking ranged between 50 and 100 hours. This cultivar has excellent taste for high sugar/acid ratio as sugar content of 11.1 °Brix, acidity of 0.39% with abundant texture and can be harvested by late spring because the fruit firmness of ‘Daewang’ was 18.2 g・mm<SUP>-2</SUP> that was about 7.9 g・mm<SUP>-2</SUP> higher than 10.3 g・mm<SUP>-2</SUP> of ‘Akihime’ cultivar. But although total yield is not significantly different from ‘Akihime’ cultivar, its marketable yield is remarkably higher than that of ‘Akihime’ cultivar. Disease and pest resistance of ‘Daewang’ have a tendency to sensitive powdery mildew, anthracnose and spotted spider.
Wang, Xiao,Park, Soo-Young,Yoon, Kwan-Han,Lyoo, Won-Seok,Min, Byung-Gil The Korean Fiber Society 2006 Fibers and polymers Vol.7 No.4
Poly(vinyl alcohol) (PVA)/multi-walled carbon nanotube (MWNT) composite films were prepared by casting a DMSO solution of PVA and MWNTs, whereby the MWNTs were dispersed by sonication. A significant improvement in the mechanical properties of the PVA drawn films was achieved by the addition of a small amount of MWNTs. The initial modulus and the tensile strength of the PVA drawn film increased by 30 % and 45 %, respectively, with the addition of 1 wt% MWNTs, which are close to those calculated from the rule of mixtures, and were strongly dependent upon the orientation of the PVA matrix. The mechanical properties, however, were not improved with a further increase in the MWNT content. The orientation of MWNTs in the composite was not well developed compared to that of the PVA matrix. This result suggests that the improvement of the molecular orientation of the PVA matrix plays a major role in the increase of the mechanical propeties of the drawn PVA/MWNT composite films.
Hepatitis B Prophylaxis after Liver Transplantation in Korea: Analysis of the KOTRY Database
Gil-Chun Park,Shin Hwang,김명수,Dong-Hwan Jung,Gi Won Song,Kwang-Woong Lee,Jong Man Kim,Jae Geun Lee,류제호,Dong Lak Choi,Hee-Jung Wang,Bong Wan Kim,Dong-Sik Kim,Yang Won Nah,Young Kyoung You,Koo Jeong Kang 대한의학회 2020 Journal of Korean medical science Vol.35 No.6
Background: Prophylaxis for hepatitis B virus (HBV) recurrence is essential after liver transplantation (LT) in HBV-associated recipients. We conducted real-world analysis of HBV prophylaxis after LT in the Korean population. Methods: Korean Organ Transplantation Registry (KOTRY) database and additionally collected data (n = 326) were analyzed with special reference to types of HBV prophylaxis. Results: The study cohort comprised 267 cases of living-donor LT and 59 cases of deceased-donor LT. Hepatocellular carcinoma (HCC) was diagnosed in 232 (71.2%) of these subjects. Antiviral agents were used in 255 patients (78.2%) prior to LT. HBV DNA was undetectable in 69 cases (21.2%) and detectable over wide concentrations in the other 257 patients (78.8%) prior to LT. Polymerase chain reaction analysis of the store blood samples detected HBV DNA in all patients, with 159 patients (48.9%) showing concentrations > 100 IU/mL. Post-transplant HBV regimens during the first year included combination therapy in 196 (60.1%), hepatitis B immunoglobulin (HBIG) monotherapy in 121 (37.1%), and antiviral monotherapy in 9 (2.8%). In the second post-transplant year, these regimens had changed to combination therapy in 187 (57.4%), HBIG monotherapy in 112 (34.4%), and antiviral monotherapy in 27 (8.3%). Trough antibody to hepatitis B surface antigen titers > 500 IU/mL and >1,000 IU/mL were observed in 61.7% and 25.2%, respectively. The mean simulative half-life of HBIG was 21.6 ± 4.3 days with a median 17.7 days. Up to 2-year follow-up period, HCC recurrence and HBV recurrence developed in 18 (5.5%) and 6 (1.8%), respectively. HCC recurrence developed in 3 of 6 patients with HBV recurrence. Conclusion: Combination therapy is the mainstay of HBV prophylaxis protocols in a majority of Korean LT centers, but HBIG was often administered excessively. Individualized optimization of HBIG treatments using SHL is necessary to adjust the HBIG infusion interval.
안길호 ( Gil Ho Ahn ),배진규 ( Jin Gyu Bae ),정광 ( Kwang Jung ),왕영일 ( Young Il Wang ),정준용 ( Jun Yong Jung ),강순근 ( Soon Keun Kang ),권혁무 ( Hyuk Moo Kwon ) 한국동물위생학회 2013 韓國家畜衛生學會誌 Vol.36 No.1
Three serotypes (O+A+Asia1 type) of the foot-and-mouth disease (FMD) vaccine were injected into cloven-hoofed animals in Korea after the nationwide spread of FMD at the end of 2010. This study was conducted to investigate FMD antibody development after FMD vaccination, and to determine whether there was a significant correlation between the antibody titer of the sow and the antibody titer of the growing pigs. The antibody titer (percentage inhibition [PI] titer) of the sow (gilt) after FMD vaccination was maintained at a level higher than 50 (P<0.05) for 5 months. A higher PI titer for the 1-month-old growing pigs corresponded with greater inhibition of the PI titer of the vaccinated growing pigs (P<0.05). A negative correlation (P<0.05) between the PI titer of the 1-month-old growing pigs and the PI titer of 3-month-old growing pigs, 4-month-old growing pigs after FMD vaccination at 2 months, 3months was identified, with a coefficient of determination (R2) of 0.274. Thus the PI titer of the growing pigs was inhibited to a greater degree when vaccination was performed at 2 months of age than at 3 months. However, many other factors likely influence growing pigs` PI titer in addition to the PI titer of the sow and age at vaccination, given that the coefficient of determination was somewhat lower.
Multi - Hop Ad Hoc Network용 Single - channel Jamming 신호 기반 MAC 프로토콜
김영만(Young Man Kim),한왕원(Wang Won Han),박홍재(Hong Jae Park),정경태(Kyung Tae Jung),최낙길(Nak Gil Choi) 한국정보과학회 2005 한국정보과학회 학술발표논문집 Vol.32 No.1
급변하는 컴퓨터 네트워킹 환경에서 이동화에 따른 무선통신의 비중이 날로 더해지고 있다. 본 논문에서는 무선 인터넷 프로토콜 표준인 IEEE 802.11의 문제점들을 분석하고, Multi-Hop Ad Hoc Network에서 성능 향상을 위하여 Single-channel Jamming 신호를 기반으로 한 SJMAC(Single-channel Jamming MAC) 프로토콜을 설계하고, NS2 모듈을 구현한 후에 성능 평가를 하였다. 기존 IEEE 802.11과의 성능 비교를 위하여 NS2 (Network Simulator2)[1]에 SJMAC 모듈을 추가하여 제안된 프로토콜의 성능을 검증한다.
교환기 데이타 관리 시스템(EDMS) 설계에 관한 연구
이길행(Gil Haeng Lee),전학성(Hak Seong Jeon),우왕돈(Wang Don Woo),김영시(Young Si Kim) 한국정보과학회 1987 한국정보과학회 학술발표논문집 Vol.14 No.1
컴퓨터 기술과 반도체 소자등의 발전에 의한 전자 통신 기술의 파급에 따라 분산제어 시스템을 지향하는 대용량의 전 전자 교환기를 지원하기 위하여 교환기 데이타를 효율적으로 관리할 수 있는 교환기 데이타 관리 시스템(EDMS)을 설계하였다.
췌장미부 절제술로 완치된 성인에서 발생한 국소형 Nesidioblastosis 1 예
김용진,박재복,안기성,손호상,서대규,신왕식,한길성,정재군,오훈규 대한내분비학회 1995 Endocrinology and metabolism Vol.10 No.2
Nesidioblastosis, the process of differentiation of pancreatic islets from ductular epithelium, is a frequent cause of hyperinsulinemic hypoglycemia in neonates and infants, but rare in adults. A 38-year-old man had suffered from intermittent hypoglycemic symtoms for 10 years. He had inappropriately elevated plasma immunoreactive insulin level and I/G ratio during a prolonged fast. There was no evidence of tumor on the abdominal CT scan and operation although celiac angiography showed a round mass like lesion in the distal pancreatic area. His hypoglycemic symptoms were improved by distal pancreatectomy. Pathologic finding in the resected pancreas was that of focal type nesidioblastosis I.e, increased size and number of islets with scattered numerous small islets around ductules in focal lesion. Distal pancreatectomy as an initial operation may be effective in the treatment of focal type nesidioblastosis(J Kor Soc Endocrinol 10: 136-141, 1995).