• 제목/요약/키워드: Kim DooJong

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Identification and Characterization of Unrecorded Aspergillus spp. in Korea

  • Choi, Doo-Ho;Yoon, Hyeok-Jun;Hong, Seung-Bum;Kim, Jong-Guk
    • 한국균학회지
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    • 제49권1호
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    • pp.1-10
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    • 2021
  • A survey of fungal diversity in Gyeongsang Province, Korea, revealed two previously unreported Aspergillus isolates, named KMG411 and KMG412. The phylogeny of the isolates was analyzed based on β-tubulin (BenA) and calmodulin (CaM) sequencing. Morphological analyses further identified the KMG411 and KMG412 as A. insuetus and A. nomius, respectively. Here we provide detailed morphological descriptions of the previously unrecorded Aspergillus species.

Metabolic engineering of aliphatic glucosinolates in Chinese cabbage plants expressing Arabidopsis MAM1, CYP79F1, and CYP83A1

  • Zang, Yun-Xiang;Kim, Jong-Hoon;Park, Young-Doo;Kim, Doo-Hwan;Hong, Seung-Beom
    • BMB Reports
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    • 제41권6호
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    • pp.472-478
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    • 2008
  • Three Arabidopsis cDNAs, MAM1, CYP79F1, and CYP83A1, required for aliphatic glucosinolate biosynthesis were introduced into Chinese cabbage by Agrobacterium tumefaciens-mediated transformation. The transgenic lines overexpressing MAM1 or CYP83A1 showed wild-type phenotypes. However, all the lines overexpressing CYP79F1 displayed phenotypes different from wild type with respect to the stem thickness as well as leaf width and shape. Glucosinolate contents of the transgenic plants were compared with those of wild type. In the MAM1 line M1-1, accumulation of aliphatic glucosinolates gluconapin and glucobrassicanapin significantly increased. In the CYP83A1 line A1-1, all the aliphatic glucosinolate levels were increased, and the levels of gluconapin and glucobrassicanapin were elevated by 4.5 and 2 fold, respectively. The three CYP79F1 transgenic lines exhibited dissimilar glucosinolate profiles. The F1-1 line accumulated higher levels of gluconapoleiferin, glucobrassicin, and 4-methoxy glucobrassicin. However, F1-2 and F1-3 lines demonstrated a decrease in the levels of gluconapin and glucobrassicanapin and an increased level of 4-hydroxy glucobrassicin.

확정계의 최적제어를 위한 WALSH함수 접근 (AN APPROACH TO WALSH FUNCTIONS FOR OPTIMAL CONTROL OF DETERMINISTIC SYSTEMS)

  • 안두수;배종일;이명규;김종부;이승
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1989년도 하계종합학술대회 논문집
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    • pp.116-120
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    • 1989
  • The optimal control problem of linear Lumped Parameter Systems (LPS) and Distributed Parameter Systems (DPS) is studied by employing the technique of Walsh functions (WF). By the using the elegant operational properties of WF, a direct computational algorithm for evaluating the optimal control and trajectory of LPS and DPS is developed. Without the need of solving the traditional matrix Riccati equation, the WF approach in shown very simple in form and convenient for use of a computer. The approximation is in the sense of least squares employing WF as the basis and the results are in the piecewise constant and discrete form.

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능동제어기를 위한 부분갱신 유전자 알고리즘 (Partial Update Genetic Algorithm for Active Controller)

  • 임국현;김종부;이태표;배종일;안두수
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1999년도 하계학술대회 논문집 B
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    • pp.942-944
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    • 1999
  • This paper presents a genetic learning algorithm with partial update technique in application to active control system. Proposed algorithm divides active control system into two parts, real time control part and control parameter update part. This genetic algorithm has global convergent advantage and is expected to be applied easily to real time active noise and vibration control systems. Computer simulation was performed.

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와이블 통계를 이용한 나노컴퍼지트 파괴강도의 평가 (Estimation of Breakdown Properties in Nano-composites using Weibull Statistics)

  • 이강원;이혁진;박희두;김종환;신종열;이충호;홍진웅
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2008년도 추계학술대회 논문집 Vol.21
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    • pp.285-286
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    • 2008
  • Recently, epoxy based nano-composites are being increasingly investigated for their electrical properties, since the introduction of nano fillers demonstrate several advantages in their properties when compared with the similar properties obtained for epoxy systems with micrometer sized fillers. We calculated scale and shape parameter using dielectric strength. In this paper, it is investigated that the allowable' breakdown probability of specimens is stable at some value using Weibull statistics. Therefore we found that breakdown probability of specimens is stable until 20 [%].

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미나리 지상부에서 라디칼 소거 활성을 가지는 페놀성 화합물의 분리 (Antioxidant Activity and Phytochemical Study on the Aerial Parts of Oenanthe javanica)

  • 조현우;이승호;남두현;김종연;임상규;이정수;박종철
    • 생약학회지
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    • 제39권2호
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    • pp.142-145
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    • 2008
  • Five compounds were isolated from the methanol extract of the aerial parts of Oenanthe javanica(Umbelliferae). Their chemical structures were identified as isorhamnetin(1), uracil(2), adenosine(3), persicarin(4) and uridine(5) by comparison of their spectral data with those of authentic samples and compounds 2, 3 and 5 were isolated from Oenanthe javanica for the first time. Compound 1 showed the strong radical scavenging activity among the compounds isolated from Oenanthe javanica.

U-City QPS의 품질측정에 관한 연구 (Research for QPS's QoE in U-City)

  • 이경현;김화종;박종건;안두헌
    • 한국IT서비스학회:학술대회논문집
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    • 한국IT서비스학회 2009년도 추계학술대회
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    • pp.430-433
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    • 2009
  • 최근 IT를 기반으로 한 다양한 산업 간의 융합이 이루어지고 있고, 그 중 가장 U-City 분야는 IT와 건설 산업의 융합으로 가장 대표적인 융합산업이다. 공공재로서의 성격이 강한 U-City 서비스는 다른 산업분야보다도 서비스 이용자의 만족도가 서비스의 성공여부를 결정하게 된다. 본 논문에서는 U-City 서비스의 핵심적인 서비스인 QPS에 사용자 품질 척도(QoE) 측정하고 관리하기 위한 방안에 대해서 논하고자 한다.

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Service Simulation을 위한 Event Simulator의 구현 (Implementation of Event Simulator for Service Simulation)

  • 이경현;김화종;박종건;안두헌
    • 한국IT서비스학회:학술대회논문집
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    • 한국IT서비스학회 2009년도 추계학술대회
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    • pp.380-383
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    • 2009
  • 최근 서비스사이언스에 대한 관심이 높아지면서 서비스 사이언스에 기초하면 다양한 서비스들이 제공되어지고 있다. 다양한 서비스 산업에서 IT기술을 적용하여 서비스의 제공시 실제 필요한 자원과 서비스로 인해서 얻어지는 수익에 대해서 시뮬레이션을 통해서 검증하기 위한 Service Simulation을 자바기반의JSL(Java Simulation Library)과 Tortuga 를 이용하여 Event Simulator를 구현하였다. 본 논문에서 General Service Simulation에 대한 요건을 분석하고, 이를 기반으로 한 Event Simulator의 구현을 소개하였다.

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새로운 Bulk type LDMOSFET의 전기적 특성에 대한 연구 (A Study on electrical characteristics of New type bulk LDMOS)

  • 정두연;김종준;이종호;박춘배
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2003년도 춘계학술대회 논문집 센서 박막재료 반도체 세라믹
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    • pp.170-173
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    • 2003
  • In this paper, we proposed a new bulk LDMOS structure which can be used for RF application, and its fabrication steps were introduced. The simulated devices consist of three types: Bulk device, SLB(SOI Like Bulk), and SOI device. As a result of process and device simulation, we showed electrical characteristics, such as threshold voltage, subthreshold slope, DIBL(Drain Induced Barrier Lowering), off-state current, and breakdown voltage. In this simulation study, the lattice temperature model was adopted to see the device characteristics with lattice temperature during the operation. SLB device structure showed the best breakdown characteristics among the other structures. The breakdown voltage of SLB structure is about 9V, that of bulk is 7V, and that of SOI is 8V.

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생약(生藥) 복합제제(複合製劑)의 약효(藥效) 연구(硏究)(제24보)(第24報) -시령탕(柴笭湯) 및 가미시령탕(加味柴笭湯)의 이뇨(利尿), 해열(解熱), 소염(疏髥) 및 진통작용(鎭痛作用)에 대(對)하여- (Studies on the Efficacy of Combined Preparation of Crude Drug (XXIV) -Effect on Diuretic, Antipyretic, Anti-inflammatory and Analgesic Actions of Shirhyung-Tang and Kamishirhyung-Tang-)

  • 홍남두;김종우;두호경;조영환;황화수
    • 생약학회지
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    • 제16권4호
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    • pp.191-198
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    • 1985
  • The investigation was aimed to study effects of Shirhyung-tang extract and Kamishirhyung-tang extract on the diuretic, antipyretic, anti-inflammatory, analgesic and the injured kidney induced by $HgCl_2$. The extract was administered to the experimental animals. The following results have been obtained. Duiretic effect was noted to be significant in extracts of Shirhyung-tang and Kamishirhyung-tang. Antipyretic effect was noted to be significant according to the density of Shirhyung-tang and Kamishirhyung-tang. Anti-inflammatory effect was noted to be significant in extract of Shirhyung-tang and Kamishirhyung-tang. Analgesic effect was noted to be significant in extracts of Shirhyung-tang and Kamishirhyung-tang.

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