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지리산둘레길에서 채집한 참진드기의 분포와 참진드기에서의 중증열성혈소판감소증후군바이러스 검출 (Distribution of ticks carrying Severe Fever with Thrombocytopenia Syndrome Virus (SFTSV) around Jiri walking trails of Jeollanam-do, Korea)

  • 송병준;임현철;하태만;전두영;양수인;송현제
    • 한국동물위생학회지
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    • 제39권2호
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    • pp.75-80
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    • 2016
  • Severe fever with thrombocytopenia syndrome (SFTS) is an emerging disease characterized by fever and thrombocytopenia. Haemaphysalis longicornis ticks comprise the major population of ticks in the environment and have been considered as the main vector for SFTS virus (SFTSV). Here we investigated the distribution of ticks carrying SFTSV collected from the environment using the dragging or sweeping methods during April~October 2015 in Jeollanam-do, Korea. Sampling was taken from Songjeong, Omi, Bangkwang, Sandong areas in Jiri walking trails. Among the total 3,869 ticks collected, 3,823 ticks (98.8%) were H. longicornis, 41 (1.1%) were Amblyomma testudinarium, and 5 (0.1%) were Ixodes nipponensis. Classification results by regional groups of H. longicornis indicated that 1,613 ticks were collected in Sandong, 1,190 ticks in Omi, 603 ticks in Bangkwang, and 417 ticks in Songjeong. In monthly distributional studies of H. longicornis based on the developmental stages, nymph (325 ticks) was collected from May to October, 94% of larvae from April to June, and 94% of adult from June to August. These results showed the different dominant stage of ticks according to seasons. However, no SFTSV-specific gene was detected in 3,823 ticks of H. longicornis, 41 of A. testudinarium and 5 of I. nipponensis.

잇꽃(홍화) 내병 다수성 신품종 '진선(眞善)' (Disease Resistant and High Yielding New Safflower Variety 'Jinsun')

  • 최병열;조은제;박경열;이한범;이은섭;김영호
    • 한국약용작물학회지
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    • 제11권2호
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    • pp.167-170
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    • 2003
  • ${\ulcorner}$진선${\lrcorner}$은 경기도농업기술원에서 1993년에서 전국에서 수집한 잇꽃 재래종 36계통에 대하여 $1995{\sim}1998$년까지 특성 검정한 결과 조숙 내병 다수성으로 유망한 계통을 순계 분리하여 육성한 품종으로 탄저병에 강하고 수량성이 높은 우량품종으로 주요특성을 요약하면 다음과 같다. 1. 개화기는 6월 22일이었으며 주당성숙화두수는 청수홍화 13.9개에 비하여 0.8개 많고 등숙율은 청수홍화 78%에 비하여 2% 높았다. 2. 조단백질 함량은 청수홍화 13.8%에 비하여 2.3%, 주요지방산비율은 리놀 레산이 청수홍화 78.3%에 비하여 1.7% 많고 올레산이 청수홍화 11.7%에 비하여 3.4% 적었다. 3. 탄저병 발병주율은 청수홍화 22.3%에 비하여 3.7%로 낮았으며 10a당 종 실 수량은 237.7kg으로 청수홍화 214.9kg에 비하여 11% 증수하였다.

분홍색 아네모네화형의 분화국화 'Peace Angel' 육성 (A New Pot Chrysanthemum 'Peace Angel' with Pink-colored Anemone Type Petals)

  • 원미경;박하승;최원춘;김동찬;최택용;양의석;이은모
    • 원예과학기술지
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    • 제30권4호
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    • pp.471-475
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    • 2012
  • 예산국화시험장에서는 노란색 포트멈 'Peace Yellow'를 교배친으로, 분홍색 포트멈 'Lompoc'을 화분친으로 2003년 인공교배한 조합에서 획득한 실생집단으로부터 다화성이며 주년생산성인 분홍색 포트멈 'Peace Angel'을 육성하였다. 2005년부터 2007년까지 주년생산성, 흰녹병 저항성, 분화수명 등 품종의 재배특성을 정밀 검정하여 2007년 최종 선발하였다. 이 품종은 10월 중순에 자연 개화하는 추국으로 차광과 전조시설을 이용한 주년생산이 가능하며 저온에서도 개화가 균일하다. 아네모네화형으로 설상화는 분홍색이고 화심부분인 통상화는 황녹색이다. 꽃의 직경은 5.6cm이며 착화수는 본당 23.0개 정도이다. 단일처리 후 개화소요 주수가 7주 정도이며 분화수명은 22.4일로 긴 편이다.

백·분홍색 절화장미 '수려' 육성 (A New Rose Cultivar 'Suryeo' with White-pink Flower Color)

  • 김주형;김시동;김승덕;김태중;노창우;민경범;백기엽
    • 원예과학기술지
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    • 제29권2호
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    • pp.160-163
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    • 2011
  • 충북농업기술원에서 육성한 장미 '수려'는 절화용 장미로 황적색 스탠다드 계통의 장미 품종인 'Konfetti' 품종을 모친으로, 분홍색의 화색을 가진 스탠다드 계통의 'Laser' 품종을 화분친으로 하여 2003년에 인공 교배한 후 계통선발 및 3차 특성 검정을 거쳐 2007년에 최종 선발하여 '수려(Suryeo)'로 명명하였으며 2009년에 품종보호권이 등록되었다. 수려는 백색과 분홍색(Red-purple Group N57B)이 혼합된 스탠다드형 장미로 연간 절화수량은 149(본/$m^2$/년)이고 꽃잎수는 64매, 개화소요일수는 48일, 절화수명은 12일 정도이다. 절화장은 78cm이며 꽃무게는 50g이었다. 특히 수세가 강건하며 흰가루병에 강한 특성이 있다.

단계적 실험 설계와 다차원 디자인 스페이스 분석 기술을 통한 초저온 SAW 공정의 최적 용접 파라미터 설계 (Optimal Parameter Design for a Cryogenic Submerged Arc Welding(SAW) Process by Utilizing Stepwise Experimental Design and Multi-dimensional Design Space Analysis)

  • 이현정;김영천;신상문
    • 품질경영학회지
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    • 제48권1호
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    • pp.51-68
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    • 2020
  • Purpose: The primary objective of this research is to develop the optimal operating conditions as well as their associated design spaces for a Cryogenic Submerged Arc Welding(SAW) process by improving its quality and productivity simultaneously. Methods: In order to investigate functional relationships among quality characteristics and their associated control factors of an SAW process, a stepwise design of experiment(DoE) method is proposed in this paper. Based on the DoE results, not only a multi-dimensional design space but also a safe operating space and normal acceptable range(NAR) by integrating statistical confidence intervals were demonstrated. In addition, the optimal operating conditions within the proposed NAR can be obtained by a robust optimal design method. Results: This study provides a customized stepwise DoE method (i.e., a sequential set of DoE such as a factorial design and a central composite design) for Cryogenic SAW process and its statistical analysis results. DoE results can then provide both the main and interaction effects of input control factors and the functional relationships between the input factors and their associated output responses. Maximizing both the product quality with high impact strength and the productivity with minimum processing times simultaneously in a case study, we proposed a design space which can provide both acceptable productivity and quality levels and NARs of input control factors. In order to confirm the optimal factor settings and the proposed NARs, validation experiments were performed. Conclusion: This research may provide significant contributions and applications to many SAW problems by preparing a standardization of the functional relationship between the input factors and their associated output response. Moreover, the proposed design space based on DoE and NAR methods can simultaneously consider a number of quality characteristics including tradeoff between productivity and quality levels.

멀티미디어 콘텐츠의 서비스거부 방지 알고리즘 성능분석 (Performance Analysis of DoS Security Algorithm for Multimedia Contents Services)

  • 장희선;신현철;이현창
    • 한국컴퓨터정보학회논문지
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    • 제15권4호
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    • pp.19-25
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    • 2010
  • 본 논문에서는 멀티미디어 콘텐츠 트래픽을 주고받는 노드들 사이에 상호 서비스 제공을 위한 정보보호 알고리즘의 성능을 분석한다. 먼저, 콘텐츠 유통에 필요한 정보보호 요소 기술들을 정의하고 멀티캐스팅 서비스를 이용하는 네트워크에서 기존 노드들의 그룹에 새로운 노드가 참여하는 경우를 가정한다. 그룹 가입을 위하여 노드는 그룹 식별자 주소가 필요하게 되며 이는 노드 스스로 생성하고 다른 노드들과의 중복성을 확인하는 과정에서 임의의 악의적인 노드에 의한 DoS(Denial of Service, 서비스거부) 공격이 발생된다. NS2를 이용한 시뮬레이션 분석결과, 새로운 주소를 생성하기 위한 난수값의 범위에 따라 주소 충돌횟수(DoS 공격의 최대 가능 횟수)와 다른 주소와 충돌되지 않는 신규 주소를 할당받기까지의 평균 시도횟수가 변하며, 네트워크의 규모에 따라 적정한 규모의 난수의 범위를 포함한 효율적인 알고리즘의 사전 설계가 필요함을 알 수 있다.

강원도형 녹색건강산업 특화분야의 발전 방안 (A Study on Development Strategy of Green Health Industry Specialized fields in Gangwon-do Privince)

  • 최은미;지계웅;한진영
    • 한국병원경영학회지
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    • 제16권4호
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    • pp.85-110
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    • 2011
  • As Gangwon-do Province needs an environmental-friendly alternative tourism according to low carbon green growth, this study analyzes specialized fields in green health industry, selects seven specialized fields in green health industry that is fit to Gangwon-do Province, and suggests a development strategy by conducting recognition surveys on preference and impotence of the specialized fields. Surveys and interviews are conducted of 106 students at Green Health Industry Education Center which is operating by Kwandong University and 84 persons who work at medical institutions and tourism related companies in Ganwondo. The surveys and interviews were completed from November 5 to November 19 in 2010, determined factors through a factor analysis when they have many questions, and analyzed by using SPSS 14.0. Out of the seven specialized fields, rest & recuperation field is highly recognized. In order to have competitive edge compared to other self-governing provinces, Ganwon-do Province should prioritize rest and recuperation field. A healthcare program in the green health industry specific to Ganwon-do Province includes hot springs and spa programs as a priority. Gangwon-do's hot springs are deemed to be competitive resources as global medical tourists prefer spa and sauna healthcare programs, while the province promotes its spring resources and builds medical tourism infrastructures. Gangwon-do Province can promote a medical tourism industry that is well suitable for the strength and characteristics of the province. It might pursue oriental medicine therapy tourism, which is related to a recuperating medical service that uses both oriental and western medicine. It can also run such programs as forest bathing (oxygen road), spring and spa, and sea water treatment, which are the specialized fields in green health industry with respect to recreation and healthcare.

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Impacts of Soil Texture on Microbial Community of Orchard Soils in Gyeongnam Province

  • Kim, Min Keun;Sonn, Yeon-Kyu;Weon, Hang-Yeon;Heo, Jae-Young;Jeong, Jeong-Seok;Choi, Yong-Jo;Lee, Sang-Dae;Shin, Hyun-Yul;Ok, Yong Sik;Lee, Young Han
    • 한국토양비료학회지
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    • 제48권2호
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    • pp.81-86
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    • 2015
  • Soil management for orchard depends on the effects of soil microbial activities. The present study evaluated the soil microbial community of 25 orchard (5 sites for sandy loam, 7 sites for silt loam, and 13 sites for loam) in Gyeongnam Province by fatty acid methyl ester (FAME) method. The average values for 25 orchard soil samples were $270nmol\;g^{-1}$ of total FAMEs, $72nmol\;g^{-1}$ of total bacteria, $34nmol\;g^{-1}$ of Gram-negative bacteria, $34nmol\;g^{-1}$ of Gram-positive bacteria, $6nmol\;g^{-1}$ of actinomycetes, $49nmol\;g^{-1}$ of fungi, and $7nmol\;g^{-1}$ of arbuscular mycorrhizal fungi. In addition, silt loam soils had significantly low ratio of cy17:0 to $16:1{\omega}7c$ and cy19:0 to $18:1{\omega}7c$ compared with those of loam soils (p < 0.05), indicating that microbial activity increased. The average soil microbial communities in the orchard soils were 26.7% of bacteria, 17.9% of fungi, 12.6% of Gram-negative bacteria, 12.5% of Gram-positive bacteria, 2.5% of arbuscular mycorrhizal fungi, and 2.2% of actinomycetes. The soil microbial community of Gram-negative bacteria in silt loam soils was significantly higher than those of sandy loam and loam soils (p < 0.05).

Botrytis cinerea에 의한 초석잠 잿빛곰팡이병 발생 (Occurrence of Gray Mold of Stachys sieboldii Caused by Botrytis cinerea)

  • 권진혁;진영민;배성문;정은호;류재산;김민근
    • 한국균학회지
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    • 제34권2호
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    • pp.122-124
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    • 2006
  • 2005년 3월경 경남농업기술원 움막저장고에서 저장중이던 초석잠의 덩이줄기에 이상증상이 발생하였다. 병징은 초석잠 덩이줄기 부분이 수침상으로 물러지고 썩으면서 병반부위에 회색의 곰팡이가 많이 생겼다. 분생포자는 무색, 단포자이며 난형 또는 타원형으로 크기는 $5{\sim}16{\times}4{\sim}12{\mu}m$였다. 분생포자경은 갈색으로 격막이 있고 나무가지 모양이며, 폭은 $14{\sim}30{\mu}m$였다. 균사생육과 균핵형성 적온은 $20^{\circ}C$였다. 초석잠에서 병징과 병원균의 균학적 특징, 병원성을 조사한 결과 Botrytis cinerea Persoon:Fries에 의한 초석잠 잿빛곰팡이병으로 동정하였다.

재식거리가 코끼리마늘(Allium ampeloprasum L.)의 생육과 수량에 미치는 영향 (Effect of Planting Density on Yield and Growth Characteristics of Elephant Garlic)

  • 윤철구;김기현;안기수;정재현;박영욱;권영희;이상영
    • 한국자원식물학회지
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    • 제28권4호
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    • pp.541-545
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    • 2015
  • This study investigated the effect of planting density on growth and yield of elephant garlic. Three planting densities of 20 × 20, 20 × 15, and 20 × 10 ㎝ were tested with the furrow width fixed at 120 ㎝ for the evaluation of elephant galic growth and yield. The average date of emergence was middle and late November, requiring about 30 days for the all emergence. For the flowering, 221 days after sowing were required in all the treatments. Plant height and leaf growth were not significantly different according to the planting density. Flower stalk was shorter when planting density was narrow. The L/D ratio was decreased to form oval shape when planting density was narrow. The yield of elephant garlic was 1,811 ㎏ /10a in planting density 20 × 20 ㎝, 2,375 ㎏/10a in 20 × 15 ㎝, and 2,838 ㎏/10a in 20 × 10 ㎝ plot. The marketable garlic ratio was highest as 1,593 ㎏/10a in planting density of 20 × 15 ㎝.