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Development of Carrot Medium Suitable for Conidia Production of Venturia nashicola
최으뜸,김경희,이영선,정재성,송재훈,고영진 한국식물병리학회 2017 Plant Pathology Journal Vol.33 No.1
The causal fungus of pear scab, Venturia nashicola,grows slowly and rarely produces conidia on artificialmedia in the laboratory, but it produced conidia onthe Cheongah medium containing Cheongah powder. V. nashicola grew too slow to produce conidia until15 days after cultivation but produced conidia with4 × 104 conidia/plate 30 days after cultivation on theCheongah medium containing 1% Cheongah powder. V. nashicola showed a peak production of conidia with4.5 × 105 conidia/plate 60 days after cultivation on thecarrot medium containing 2% carrot powder, one ofthe constituents of Cheongah powder. The carrot mediumis considered to be the best medium to obtain conidiaof V. nashicola in the laboratory until now. Thisis the first report on the development of a suitable mediumfor conidia production of V. nashicola, as far aswe know.
배 검은별무늬병균(Venturia nashicola) 감염특성과 방제기술
최으뜸,송장훈,서호진 한국식물병리학회 2023 식물병연구 Vol.29 No.2
Pear scab, caused by Venturia nashicola, is one of the most devastating diseases of Asian pears in Korea, Japan, China, and Taiwan. To manage this disease, growers mainly relied on chemical control. However, continuous use of chemical causes not only environmental contaminant but also the emergence of resistance to pathogens, so a more sustainable management plan is needed. Therefore, it is necessary to understand the life cycle and infection characteristics of V. nashicola and to set an active control strategy according to meteorological conditions rather than, as in the past, calendar-based control or continuous use of a specific fungicide system. Various results of the related research results were reviewed to summarize the race, infection characteristics, and control system of V. nashicola, a pear scab, and to discuss plans for a more effective control system.
항공기 건전성 관리시스템용 원자성 위배 자율 수리 소프트웨어 기법
최으뜸(Eu-Teum Choi),이동수(Dong-Su Lee),전용기(Yong-Kee Jun),이성진(Seongjin Lee) 한국항공우주학회 2020 韓國航空宇宙學會誌 Vol.48 No.7
항공기 건전성 관리시스템은 항공기 소프트웨어에서 발생한 오류 또는 결함으로 인해 항공기의 기능이 실패되는 것을 방지한다. ARINC-653의 병행프로그램에서 발생하는 원자성 위배의 자율 수리는 프로그램의 정상적인 실행을 보장하기 때문에 중요하다. 본 논문은 프로그램 실험 결과를 활용하여 수행 중에 원자성 위배를 예측하고 주요 관련 접근 사건을 지연시켜 수리하는 기법인 Repairing-AV를 제시한다. 실세계 소프트웨어에서 발생한 5가지 원자성 위배 패턴을 포함하는 합성 프로그램에 기존 기법과 Repairing-AV을 적용하여 수리 시간 오버헤드를 비교하였다. 실험 결과 Repairing-AV는 공유변수 접근 횟수와 관계없이 평균 1.4배의 일정한 시간 오버헤드를 가짐을 확인하였다. Airborne health management system prevents functional failure caused by errors or faults in the airborne software. On-the-fly repairing atomicity violations (AV) in an ARINC-653 concurrent software is critical for guaranteeing correctness of execution of the software. This paper proposes Repairing-AV which efficiently repairs atomicity violations. The Repairing-AV can diagnose and prevent an error on-the-fly by utilizing the training results of the software and controls access to the shared variable of the thread where the error occurred. The evaluation of the Repairing-AV measures the time overhead by applying the previous work and the Repairing-AV to five synthesis programs containing the atomicity violation. As the result of evaluation, the Repairing- AV constantly shows about 1.4x time overhead regardless of count of shared variable access.